In the modern industrial landscape, environmental concerns have led to the development of various technologies aimed at reducing harmful emissions. One such technology is flue gas desulfurization (FGD), which is essential in minimizing sulfur dioxide (SO₂) emissions from power plants and industrial facilities. At the heart of this process lies the desulfurization circulation pump, a crucial component that ensures the effective removal of sulfur compounds from exhaust gases.

The Role of Desulfurization Circulation Pumps

Desulfurization circulation pumps are specifically designed to handle the transport of limestone or lime slurry, which is used in FGD systems. These pumps are vital for circulating the slurry through the system, allowing for continuous contact between the desulfurizing agent and the flue gas. This interaction facilitates the chemical reaction that converts sulfur dioxide into solid compounds, which can then be removed from the gas stream.

Working Principle

The working principle of a desulfurization circulation pump involves several key steps:

1. Slurry Preparation: The process begins with the preparation of a limestone or lime slurry, which serves as the desulfurizing agent. This slurry is typically mixed with water to create a homogeneous suspension.

2. Pumping the Slurry: The desulfurization circulation pump then transports this slurry to the absorber tower, where the flue gas enters. The pump is designed to handle the abrasive nature of the slurry, ensuring that it can operate continuously without failure.

3. Chemical Reaction: Inside the absorber tower, the sulfur dioxide in the flue gas reacts with the calcium carbonate (CaCO₃) present in the slurry. This reaction produces calcium sulfite (CaSO₃), which is a solid byproduct that can be further processed or disposed of.

4. Recirculation: After the chemical reaction, the remaining slurry is recirculated back to the pump for continued use. This closed-loop system enhances efficiency and minimizes waste, as the slurry can be reused multiple times.

Key Features and Benefits

Desulfurization circulation pumps are engineered to meet specific operational requirements, including:

• Corrosion Resistance: Given the corrosive nature of the materials handled, these pumps are typically made from corrosion-resistant materials such as stainless steel or specialized alloys. This ensures durability and longevity, even under harsh operating conditions.

• High Efficiency: These pumps are designed to operate efficiently, minimizing energy consumption while maximizing flow rates. Their ability to handle varying flow and pressure conditions is crucial for maintaining the stability of the desulfurization process.

• Reliability: With continuous operation being essential in FGD systems, desulfurization circulation pumps are built for reliability. Features such as mechanical seals and robust bearings help reduce the risk of leaks and failures.

Applications

Desulfurization circulation pumps are widely used in various industries, including:

• Power Generation: In coal-fired power plants, these pumps play a critical role in reducing SO₂ emissions, ensuring compliance with environmental regulations.

• Chemical Processing: Industries that produce or utilize sulfur compounds also rely on these pumps to mitigate emissions and enhance process efficiency.

• Cement Production: Cement plants often use desulfurization systems to control emissions from the combustion of fuels that contain sulfur, further emphasizing the importance of reliable circulation pumps.

In conclusion, desulfurization circulation pumps are essential components of flue gas desulfurization systems, playing a pivotal role in reducing sulfur dioxide emissions and promoting environmental sustainability. Their robust design, high efficiency, and ability to handle corrosive materials make them indispensable in various industries. As environmental regulations continue to tighten, the importance of effective desulfurization systems and the pumps that power them will only grow. Investing in high-quality desulfurization circulation pumps not only ensures compliance but also contributes to a cleaner, more sustainable future.

    Magnetic pumps are widely used in industries such as chemicals, pharmaceuticals, and environmental protection due to their unique design that effectively prevents medium leakage. However, there is a significant operational limitation with magnetic pumps—they cannot run dry. So, why is it that magnetic pumps can't operate without liquid? This article will provide a detailed explanation.

    Working Principle of Magnetic Pumps

    To understand why magnetic pumps cannot run dry, it's essential to grasp their working principle. Magnetic pumps transfer power through magnetic coupling. Typically, the driving end and the driven end of the pump are connected via a magnetic coupling, and the impeller inside the pump rotates under the influence of this magnetic force, thereby propelling the medium to flow.

    Unlike traditional mechanical seal pumps, magnetic pumps have a completely sealed pump chamber with no shaft seals, which eliminates the possibility of leakage. This seal-free design makes magnetic pumps particularly suitable for applications that require high levels of sealing, especially when handling toxic, flammable, or corrosive media.

    The Dangers of Running Dry

    When a magnetic pump operates in a dry condition, meaning the pump chamber is devoid of any liquid medium, the magnetic coupling and other components inside the pump continue to rotate at high speed. This can lead to several problems:

    1.Overheating:

    Under normal operation, the liquid medium inside the pump acts as a lubricant and coolant. Without liquid, friction between components generates a significant amount of heat. Since the pump is designed to be completely sealed, the heat cannot dissipate quickly, potentially damaging the magnetic coupling and other critical components due to the rapid increase in temperature.

    2.Damage to the Magnetic Coupling:

When running dry, the magnetic coupling may overheat, leading to demagnetization or damage, causing it to lose its ability to couple magnetically. This not only results in the loss of the pump's drive function but also can lead to overall pump failure, which can be costly to repair or replace.

    3.Wear and Tear on the Impeller and Bearings:

    In a dry-running state, there is no liquid medium to reduce friction, causing direct contact between the impeller and bearings, leading to significant wear and tear. This drastically shortens the pump's lifespan and can even result in sudden pump failure.

    How to Prevent Dry Running?

    To ensure the safe and efficient operation of a magnetic pump, it's crucial to avoid dry running. Here are some common preventive measures:

    1.Install a Liquid Level Detection Device:

    A liquid level detection device can be installed in the pump's inlet pipe or storage tank. If the liquid level is too low, the device automatically stops the pump to prevent dry running.

    2.Set Up Pump Protection Devices:

    By installing pump protection devices, such as temperature sensors or flow sensors, the pump can automatically shut down if the internal temperature becomes abnormal or if the flow is insufficient, thereby protecting the pump from damage.

    3.Regular Inspection and Maintenance:

    Regularly inspect the pump's operating conditions to ensure there is always sufficient medium inside the pump, and conduct timely maintenance to prevent dry running due to worn-out components.

    Conclusion

    The primary reason magnetic pumps cannot run dry is that they rely on the liquid medium for cooling and lubrication. Without the medium, the pump's components can quickly overheat and wear out, potentially causing severe damage to the pump. Therefore, understanding and implementing preventive measures to ensure that magnetic pumps operate under the right conditions is key to extending equipment lifespan and ensuring safe production.

    When it comes to handling thick, viscous, and abrasive fluids in industrial processes, the terms "sludge pump" and "slurry pump" are often mentioned. While they might seem similar at first glance, these pumps are designed for different purposes and applications. Understanding the differences between a sludge pump and a slurry pump is crucial for selecting the right equipment for your specific needs.

    1.What is a Sludge Pump?

    A sludge pump is specifically designed to handle viscous fluids that contain a high concentration of solid particles, typically found in wastewater treatment plants, mining operations, and industrial waste processing. The term "sludge" refers to a semi-solid mixture, usually comprising water, solid particles, and other substances like oils or chemicals.

    Sludge pumps are characterized by their ability to move thick, heavy materials without clogging. They often feature a wide impeller clearance, which helps to prevent blockages caused by the dense consistency of the sludge. The pump's design typically includes a positive displacement mechanism, allowing it to generate high pressure and efficiently move sludge through pipelines.

    2.What is a Slurry Pump?

    On the other hand, a slurry pump is designed to handle mixtures of water and solid particles that are more fluid and less viscous than sludge. The term "slurry" refers to a mixture of solids suspended in a liquid, commonly encountered in mining, dredging, and mineral processing industries. The solid content in slurry can range from fine particles, like sand, to larger, abrasive materials like rocks or ores.

    Slurry pumps are built to withstand the abrasive nature of the materials they handle. They typically feature robust construction materials, such as high-chrome alloys or rubber linings, to resist wear and tear. Unlike sludge pumps, slurry pumps often use centrifugal force to move the mixture, which allows them to handle higher flow rates and less viscous mixtures efficiently.

    3.Key Differences

    3.1 Viscosity and Solid Content:

    Sludge Pumps: Designed for high-viscosity fluids with a higher concentration of solids.

    Slurry Pumps: Designed for more fluid mixtures with lower viscosity and a range of solid particle sizes.

    3.2 Pump Mechanism:

    Sludge Pumps: Often use positive displacement mechanisms to handle dense, semi-solid materials.

    Slurry Pumps: Typically use centrifugal force to handle a mix of liquids and solid particles.

    3.3 Application Areas:

    Sludge Pumps: Commonly used in wastewater treatment, industrial waste management, and processes involving thick, semi-solid mixtures.

    Slurry Pumps: Used in mining, dredging, and mineral processing, where the fluidity of the mixture is higher, and the focus is on moving abrasive materials.

    4.Design Considerations:

    Sludge Pumps: Focus on preventing blockages with wider clearances and robust, clog-resistant designs.

    Slurry Pumps: Emphasize abrasion resistance and the ability to handle high flow rates.

    5.Which Pump is Right for You?

    The choice between a sludge pump and a slurry pump depends on the specific requirements of your operation. If you're dealing with thick, viscous mixtures with a high solid content, a sludge pump would be the ideal choice. However, if your operation involves moving a more fluid mixture with abrasive particles, a slurry pump would be more suitable.

    6.Conclusion

    Understanding the differences between sludge pumps and slurry pumps ensures that you select the most efficient and cost-effective solution for your needs. Whether in wastewater treatment or mining, choosing the right pump will not only improve operational efficiency but also extend the lifespan of your equipment.

When it comes to running a successful bakery or printing business, having the right equipment is crucial. Industrial bakery equipment and industrial printing machines play vital roles in the production process, ensuring efficiency and quality. In this article, we will compare and contrast these two types of equipment to help you make an informed decision for your business.

Industrial Bakery Equipment

Industrial bakery equipment refers to a range of machinery specifically designed for large-scale bakery operations. These machines are built to handle high volumes of dough and produce consistent results. They include mixers, dough dividers, dough rounders, proofers, ovens, and more.

The key advantage of industrial bakery equipment is its ability to increase production capacity while maintaining quality. These machines are designed for durability and efficiency, allowing bakeries to meet high-demand without compromising on product consistency. They also provide precision and control over the baking process, resulting in evenly baked goods.

Industrial Printing Machines

On the other hand, industrial printing machines are used in various industries, including packaging, labeling, and promotional material production. These machines utilize advanced printing technologies to achieve high-quality prints on a large scale. They include flexographic, offset, and digital printing machines.

The primary benefit of industrial printing machines is their ability to deliver fast and accurate printing results. These machines are capable of high-speed production, allowing businesses to meet tight deadlines and efficiently handle large print runs. Additionally, they provide versatility in terms of materials they can print on and various customization options, enhancing the visual appeal of the end products.

Key Differences

While both industrial bakery equipment and industrial printing machines share some similarities in terms of using advanced technologies and catering to large-scale operations, there are some notable differences between them.

1. Production Process: Industrial bakery equipment focuses on mixing, proofing, and baking dough, while industrial printing machines are designed to apply precise printing techniques onto various materials.

2. Product Range: Industrial bakeries mainly produce baked goods like bread, pastries, and cakes, while industrial printing machines are utilized for a diverse range of products, including packaging materials, labels, and marketing materials.

3. Industry Specificity: While industrial bakery equipment is primarily used by bakeries, industrial printing machines find applications in multiple industries, such as packaging, advertising, and publishing.

Conclusion

Choosing between industrial bakery equipment and industrial printing machines depends on your business goals, production requirements, and industry specialization. If you run a bakery, investing in industrial bakery equipment will significantly enhance your production capacity and product consistency. Alternatively, if you are in the printing industry, industrial printing machines offer you fast and efficient printing capabilities for various materials and applications.

Evaluate your specific needs, consider the volume and range of products you aim to produce, and make an informed decision that aligns with the long-term growth and success of your business. With the right equipment, you can streamline operations, optimize productivity, and deliver excellent results to your customers.

In industries where protective clothing is essential, ensuring the garments' water resistance plays a crucial role in determining their durability and effectiveness. The Spray Rating Tester For Protective Clothing GT-C31 is a vital tool in evaluating the water repellency of protective fabrics. It simulates real-world conditions by spraying water onto textile samples to assess their surface wetting resistance. This article will explore the importance of water repellency testing in protective clothing and provide an in-depth overview of the Spray Rating Tester GT-C31.

Importance of Water Repellency in Protective Clothing
Protective clothing is widely used in sectors such as healthcare, firefighting, industrial work, and outdoor professions where exposure to water, chemicals, and hazardous substances is frequent. The ability of the fabric to repel water is critical because it ensures the wearer's safety by keeping harmful liquids at bay. The Spray Rating Tester GT-C31 provides an efficient method for determining how well fabrics perform in preventing surface wetting, which is especially important for garments exposed to rain or chemical splashes.

Understanding the Spray Rating Tester GT-C31
The Spray Rating Tester GT-C31 is designed specifically to simulate light rain conditions, allowing manufacturers and quality control professionals to measure fabric performance in repelling water. The tester uses a precise method to evaluate surface wetting by spraying water on a sample fabric at a controlled angle and height, as specified in international standards.


Step-by-Step Process of Spray Rating Testing
To understand how the Spray Rating Tester GT-C31 works, let’s break down the test procedure into its key steps:

Step 1: Sample Preparation
Begin by preparing a 180mm x 180mm textile sample. The textile should be representative of the material used in protective clothing to ensure accurate results. Once ready, the sample is installed on the fixture to secure it in place for testing.

Step 2: Securing the Sample
The fixture with the textile sample is then fixed on the 45° test station. This angle ensures that water is sprayed in a manner that mimics natural rain hitting the fabric surface.

Step 3: Funnel and Baffle Placement
A test funnel is placed in the fixed ring above the fixture, and a baffle plate is positioned in the center of the funnel. The baffle ensures that the water is distributed evenly across the textile sample during the test.

Step 4: Measuring Distance
Next, measure the distance between the bottom of the funnel and the sample surface. The prescribed distance is 150mm, but this height can be adjusted based on specific testing requirements.

Step 5: Water Application
Pour 250ml of distilled water into the funnel. The spray time is crucial and should fall between 25 and 30 seconds to ensure consistent results. The controlled flow rate replicates rain conditions that the protective clothing may encounter in the real world.

Step 6: Evaluation of Results
Once the test is completed, remove the textile sample from the fixture and compare it against the standard rating cards. These cards help in assessing the water repellency of the sample based on the degree of surface wetting observed.

Why Choose the Spray Rating Tester GT-C31?
The Spray Rating Tester GT-C31 offers a reliable and standardized method to evaluate water repellency in protective fabrics. It is widely used by manufacturers, research institutions, and testing laboratories due to its precision, ease of use, and adherence to international standards such as ISO and AATCC.

1. Precise Measurements: The Protective Clothing Spray Rating Tester  ensures that each test is conducted under controlled and consistent conditions, leading to accurate and reliable results.

2 .Standardized Testing: It complies with international standards for water repellency testing, making the results widely accepted across industries.

Elephant Diesel Mud Pump is an efficient and reliable equipment widely used in oil drilling, mining, construction, tunnel engineering and other fields. Here is a complete overview of Elephant Diesel Mud Pump:

• Design Features:Mud Pumps With Diesel Engine adopts advanced design and manufacturing technology, and is efficient, energy-saving and durable. It is designed for handling mud and viscous liquids and can operate stably in harsh working environments.

• High-pressure output: Elephant Diesel Mud Pump is able to provide high-pressure output, making it suitable for handling high-density mud and liquid solids. High-pressure output helps to effectively carry and discharge mud to meet engineering needs.

• Durability and Reliability: Elephant Diesel Mud Pump adopts high-quality materials and components, which are precision-processed and strictly quality-controlled to ensure its durability and reliability. This enables the pump to maintain stable performance under long-term heavy-load operation.

• Easy Operation: Elephant Diesel Mud Pump adopts a user-friendly design and is easy to operate. It is equipped with advanced control systems and instruments, allowing operators to easily monitor and control the operating status of the pump.

• Customizability: Elephant Diesel Mud Pump is available in a variety of models and specifications to meet different engineering needs. According to the specific application scenario, it can be customized, including the pump displacement, pressure and outlet size.

• After-sales service: As an industry-leading manufacturer and supplier, Elephant Machinery is committed to providing customers with perfect after-sales service. We have a professional after-sales team that can provide timely technical support, maintenance and repair services to ensure that customers' equipment can continue to operate efficiently.

In short, Mud Diesel Engine Pump is an efficient and reliable equipment with advantages such as high-pressure output, durability, easy operation and customizability. It plays an important role in fields such as oil drilling, mining and construction, effectively handling mud and viscous liquids. By choosing the Elephant diesel mud pump, you can get high-quality equipment and excellent after-sales service to meet your engineering needs.

If you have further understanding of the Elephant diesel mud pump or other related products or need detailed consultation, please feel free to contact us. We are willing to provide you with support and help.

Drilling operations require robust and reliable equipment to ensure seamless performance on site. Among the essential tools in the drilling industry is the Drilling Mud Pump BW 160. This hydraulic mud pump is a true workhorse, designed to handle the demanding tasks of pumping mud and fluids during drilling operations.

The BW 160 Mud Pump is specifically built to withstand the harsh conditions encountered in drilling sites. Its sturdy construction and powerful hydraulic motor make it an ideal choice for both onshore and offshore drilling projects. With its compact design and high efficiency, this reciprocating pump ensures efficient mud circulation, enhancing productivity while minimizing downtime.

The hydraulic motor of the BW 160 Mud Pump provides the driving force required to move the mud through the drill string, maintaining adequate pressure for effective drilling. This allows for better control over the drilling process, reducing the risk of accidents and improving overall operational safety.

The versatility of the BW-160 Mud Pump enables it to handle various types of drilling fluids, including water-based and oil-based muds. Its adjustable flow rate and pressure capabilities ensure maximum performance in a wide range of drilling applications. Whether you’re working on a small-scale project or a large-scale operation, this hydraulic mud pump delivers consistent results.

One of the key advantages of the BW-160 Mud Pump is its ease of maintenance. The design incorporates user-friendly features, allowing for quick and hassle-free servicing. Regular maintenance and inspection of the pump and its hydraulic motor ensure optimal performance and longevity, reducing operational costs in the long run.

Furthermore, the hydraulic motor used in the BW-160 Mud Pump offers exceptional efficiency and durability. Its high torque output enables smooth and efficient pumping, while its robust construction ensures reliability even in the harshest drilling environments. This makes the hydraulic motor a crucial component in the overall performance of the mud pump.

In conclusion, the Drilling Mud Pump BW 160 is a reliable and efficient hydraulic mud pump that plays a vital role in drilling operations. Its powerful hydraulic motor, sturdy construction, and versatility make it a valuable asset for any drilling project. With proper maintenance and servicing, this pump will consistently deliver optimal performance, ensuring smooth drilling operations and maximizing productivity.

Nanjing Pege’s “PEIKE” brand Gravimetric Loss-in-weight feeder

Introduction

Nanjing Pege Techno Machine Co., Ltd is specialized in designing and producing the low in weight feeders including single and twin screws loss in weight feeder, liquid gravimetric feeder, micro scale feeder, vibratory feeder, Paddle massaged flexible PUR hopper feeder and multi-ingredients compounding feeder.

Our products are successfully applied in various dosing and blending(mixing) field, like chemistry, engineering plastics, cable, food processing, pharmaceutical and building material industries.

Our head company is constantly dedicated to providing the solutions of weighing, feeding, transmission, packing and automatic stacking, to provide the professional products and service for the customer worldwide both in solid and liquid product manufacturing field. To strengthen our competence and leading position in the gravimetric weighing field, we integrated our profound technology and talents to better improve our design and manufacturing competence.

PRODUCTS

Twin screw loss-in-weight feeder 

Application material

Resin Granules, Resin Powder, Calcium carbonate, French Chalk, Tio2, Carbon Black

Features

1. Cantilever type weighing frame ensure lower gravity(barycenter) center, weaker vibration and anti-interference performance of the whole feeder.

2. Vertical U-shaped hopper with mirror-like inner wall and without corner enclosure can ensure no bridge of the materials

3. Stainless Steel bellow sensor has the feature of only slight deformation after long time use, and high precision with less signal drift, and is durable for bad environment use

4. 485 Digital transmission of weighing data has the feature of no attenuation and anti-interference during the period of data transmission.

5. Feeding and stirring is operated separately, using independent agitation motor and stirring speed can be adjusted according to the demand.

6. No agitation motor on the top of the hopper will surely reduce the vibration during the operation, then this design will achieve high stability and high accuracy.

Vibrating Tray Loss-in-weight Feeder

Application material

Flack, Glass Fiber, Cylindrical Material, Irregular Shape Material from Recovery

Features

1. Cantilever type weighing frame ensure lower gravity(barycenter) center, weaker vibration and anti-interference performance of the whole feeder.

2. Double weighing sensors weight platform ensure good balance degree and no unbalanced loading

3. 485 Digital transmission of weighing data has the feature of no attenuation and anti-interference during the period of data transmission

4. Vibration type feeding has no damage on the material itself.

5. Electrical magnetic vibration type feeding ensures tiny machine wear and tear and nearly none of maintenance parts are needed

Applications Material

Liquid Additive DCP Silane Maleic Anhydride

Features

1.       Cantilever type weighing frame ensure lower gravity(barycenter) center, weaker

vibration and anti-interference performance of the whole feeder.

2.       Stainless Steel bellow sensor has the feature of only slight deformation after long time use, and high precision with less signal drift, and is durable for bad environment use.

3.       485 Digital transmission of weighing data has the feature of no attenuation and anti- interference during the period of data transmission.

4.      Hydraulic Diaphragm Pump, Plunger Pump, Gear Pump are selectable.

5.       Equipped with complete isolated SUS304 bellow spring damping type spray gun, has the feature of keeping pressure stable within 48 hours.

6.      Explosion proof, heat preservation by water or electricity are selectable

Flexible Paddle-Massaged PUR Hopper Feeder

Application material

Resin Particles, Resin powder, Calcium Carbonate,

Talcum powder, Titanium White Powder

Carbon Black, Flame Retardant Antioxidant

Features

■Suitable for all-purpose bulk material, especially for the powder material with humidity and low flowability.

■The cantilever sling-type weighing scale supports the storage hopper, which has the characteristics of vibration reduction and anti-level interference. This design can effectively shield the non-weight value interference from the vibrator and measure the flow of the system more accurately.

■No bridging thanks to straight walled hopper.

■Gentle feed capability by paddling flexible hopper with external agitation.

■Easy to disassemble and to clean, convenient for maintenance.

■No direct touch between stirring unit and material ensures no damage on the materials.

■Improve material flowability, optimize dynamic loadings of the screws, to ensure stable and accurate flow rate.

■Arch breaker inside of the machine can ensure efficient weighing feeding even the humidity rate in the materials reaches to 20%

CONTROL SYSTEM FEATURES

1.  Self-learning: The equipment can automatically identify the bulk density and fluidity of the material during the pre-operation, self-tuning during operation and continuously optimizing the best P (proportion) and I (integral) values to ensure rapid response of the system operation

2. Anti-interference: Automatically identify the intensity and duration of the interference and adopt emergency backup procedures to deal with it urgently to ensure the stability and accuracy of the system.

3.       The software is independently developed. After the product leaves the factory, the original program will be burned on the Micro SD card and given to customers randomly. Hardware adjustment.

4.      The mainstream communication formats in the market can be customized according to customer needs, such as Modbus, PPI, MPI, Profibus, Ethernet and other communication formats, so that customers can access the factory's main control system.

5.       The weighing signal transmitter is a customized product with a resolution of one hundred thousandth. The transmitter is installed on the weighing frame and is about one meter away from the weighing sensor. The signal transmission uses RS485 twisted shielded wire and digital transmission. Eliminate signal attenuation and interference

6.      The controller uses Siemens SMART series PLC, each scale uses a CPU, and each scale (each CPU) is connected in parallel by Ethernet.

7.       The RS485 serial port of the Siemens controller communicates with the weighing transmitter, installs an RS485 serial port to communicate with the inverter or servo controller, and the built-in Ethernet port communicates with the touch screen or host computer through the switch. Digital communication throughout the network, high speed, efficiency and stability

8.      The system can display and record operating parameters and can be installed with industrial control computer systems such as domestic Kingview, Siemens Wincc. At the same time, a scanning gun can be installed for barcode parameter reading, process flow recording, and quality traceability.

FAQs on Peike loss-in-weight feeders

1.     What kinds of materials can be used for loss in weight feeding?

Resin granules, flack, flocculus, powder and pellets blendings

Resin Particles, Resin Powder, Calcium Carbonate, Glass fibers

Talcum Powder, Titanium White Powder Carbon Black, Flame Retardant Antioxidant

Flack, Glass Fiber, Cylindrical Material, Irregular Shape Material from Recovery

Liquid Additive, DCP Silane, Maleic Anhydride

2.    What kinds of feeders are included in the loss in weight feeder series?

Our feeding product range includes micro loss in weight feeder, single screw feeder, twin screw feeder, vibratory tray feeder, Paddle massaged Polyurethane Hoppe feeder and liquid loss in weight feeder.

PPS PET and PA parts nitrogen deburring machine

Cryogenic deflashing and deburring system is a process that employs cryogenic temperatures to remove flash on manufactured workpieces made of a wide range of plastics (and other materials) both thermoset and thermoplastic. Some examples of materials used include nylon, HD-PE, PPS, PET, polycarbonate, polypropylene, polyurethane, liquid crystal polymer, PA+GF, PC+GF, PEEK, and Acetal. Manufactured parts that have been successfully deburred include those made through injection molding, compression molding and extrusion molding.

 What is “Flash.”

“Flash” is a raised edge attached to the workpiece. It is an unwanted piece of material and requires removal. Many medical devices and other precision components are included in deflashing applications. Deburring accounts for a significant amount of the costs of manufacturing. The cryogenic deflashing process causes the flash or burr to become stiff or brittle and break away leaving a clean edge. There are three types of burrs that can be formed in manufacturing operations and can be classified by the physical manner of formation: Poisson burr, roll-over burr and Tear burr.

■Poisson Burr

A Poisson burr results from the tendency of a material to bulge at the side when compressed until permanent deformation of the plastic occurs.

■Roll-over Burr

A roll-over burr is a burr that is more of a chip that is bent rather that sheared. The resulting burr is usually comparatively larger. The process even removes recessed burrs in blind and through holes.

■Tear Burr

A Tear burr is the result of material tearing from a work piece rather than shearing from it.

In the cryogenic deflashing process, parts are loaded into a basket. A cryogem such as liquid nitrogen is used to cool the workpieces. After they are cooled they are tumbled with pellets- often a polycarbonate media ranging in size from 0.006 to 0.080 inches (0.15mm to 2.03 mm.) Sometimes cryogenic deflashing does not rely on a blasting action but rather on the tumbling of the parts to remove flash from the outer edges. The process can even remove recessed burrs in blind and through holes. The process does not affect the surface finish or the geometry of the part. Edges are maintained without rounding or removal of extra material and only the unwanted burrs are removed.

Cryogenic Deflashing Systems Advantages

Cryogenic deflashing equipements provides advantages over manual deflashing.

■The process maintains part integrity and critical tolerances. As it is a bath process the price per piece is far less as many more parts can be processed at the same time.

■Cryogenic deflashing is non-abrasive.

■As the process is computer controlled, the human operator variable is removed from the process.

■Mold life is extended by the cryogenic deflashing process. Instead of making a new mold a company may choose to deburr a manufactured part cryogenically and achieve the same product quality very much as they would with a new mold for a period of time until maintenance is performed.

Pege’s Automatic Nitrogen Trimming Machine’s Features

■Greater productivity

■Large output in short time

■Better and consistent Finish

■Low Labour dependence

■Space Saving

■Low Media Consumption

■Wide variety of rubber compounds - NR to Silicon Rubber

■Low Nitrogen Usage

■Simple Electrical Controls

■High Efficiency Blast Wheel

■Safety Interlocks

■Simple and Very Low maintenance

PU TPU TPE parts cryogenic deburring machine

Cryogenic Deflashing or cryogenic deburring is available for all molded parts, including those made of plastics, polymers, nylons, rubbers, silicone rubber, polyurethane, neoprene, liquid crystal polymer, urethane, viton, polycarbonate, PTFE, PPS, delrin, polypropylene, EPDM, nitrile, butyl, DAP, ABS, PEEK, Acetal and aluminum zinc die cast and precision elastomer parts.

Cryogenic Deflashing Works On Most Molded Parts

The computer-controlled process generates repeatable and reliable results. Many medical devices and other high value precision molded components are included in our vast array of successful deflashing applications. We have processed parts manufactured through injection molding, compression molding and extrusion molding.

Our cryogenic deflashing machine offers a fast and repeatable process to remove flash from plastic parts. Through freezing, tumbling and blasting polycarbonate media at your injection molded plastic parts, we are able to remove residual mold flash time and time again.

The Cryogenic Deflashing process was originally created to remove mold flash from rubber parts. We are able to deflash rubber parts that are injection molded, extrusion molded and compression molded. We have processed parts made of various durometers. We typically deflash rubber parts made of EPDM, neoprene, Viton, Buna-N, nitrile, natural gum, SBR, butyl, and other elastomers.

Our Cryogenic Deflashing machine is often used by molders who work with silicone rubber. Silicone rubber, by its nature, is very viscous causing it to flash during the molding process. The Pege’s Deflashing machine removes mold flash from silicone rubber parts. We deflash parts made of liquid silicone rubber and even special blends of silicone rubber that include conductive fillers such as silver, graphite, nickel.

Rather than invest in an expensive new or repaired mold tool, customers can elect to extend the functional life of their mold tool by adding the additional step of deflashing, to finish the part and remove any residual flash leftover after molding operations. It is economical to pay only a slight premium per part than to invest in a new molding tool that has a limited production life.

Cryogenic Deflashing is a fast and efficient process that provides complete removal of mold flash without affecting the surface finish. Therefore, it is a safe,clean and cost-effective alternative to traditional methods.

Parts are placed in a chamber, cooled, tumbled and impacted with plastic polycarbonate media. Mold flash is removed quickly and cleanly. No dust or residue remains after deflashing.

Cryogenic Deflashing is more cost-effective than labor-intensive hand deflashing by a significant margin. The cost to process parts can range from less than .01 cent to several dollars apiece. General rule of thumb: cost is between 10% and 20% of the value of the part, although each part must be considered on its individual

Nanjing Pegedeflashing’s Cryogenic Deburring Machine’s ADVANTAGES

Greater productivity

Large output in short time

Better and consistent Finish

Low Labour dependence

Space Saving

Low Media Consumption

Wide variety of rubber compounds - NR to Silicon Rubber

Low Nitrogen Usage

Simple Electrical Controls

High Efficiency Blast Wheel

Safety Interlocks

Simple and Very Low maintenance

Our factory and Workshop of cryogenic deflashing systems

Nanjing Pege Techno Machine Co.,Ltd production plant is located in the No.9 Ankang road, Guli Industrial Zone, Jiangning District, Nanjing.
We have professional production workers and process, are determine to produce best product for the customer all over the world

Packing and Transportation of cryogeic deflashing equipments

The machine produced by Nanjing Pege is well packed by plywood carton suitable for long distance sea transportation to ensure machine safety and performance.

We can help customer to arrange the transportation by the terms of FOB, CIF with land or sea transportation methods according to the request from the