Product Description
Product Parameters
SK Centrifugal Pump
SK type high-efficiency non-clogging non-leakage pulp pump is a new generation of pulp pump products. It has obvious advantages such as high efficiency, good anti-clogging performance, no leakage during operation, and convenient installation and maintenance. It is widely used in the transportation of pulp media in paper and pulp enterprises.
Structural features:
1. The pump has a rear-opening structure, so there is no need to disassemble the pipeline during maintenance.
2. The inlet and outlet flanges of the pump are designed according to 1.6MPa pressure.
3. The impeller adopts three-blade or six-blade open impeller, which has high efficiency and does not require axial thrust compensation, is easy to maintain, and has low blockage rate.
4. The pump shaft is supported by a combination of imported cylindrical roller bearings and radial thrust ball bearings (angular contact ball bearings). Cylindrical roller bearings are installed at the pump end, and radial thrust ball bearings are installed face-to-face at the rotating end.
5. Shaft seals mainly include pumping ring plus single end mechanical seal, packing seal, single end mechanical seal, tandem mechanical seal, double end mechanical seal, combined seal of pumping ring and single end mechanical seal, and dynamic seal. .
6. The impeller adopts lost wax precision casting and performs dynamic balance verification
7. There are 4 kinds of materials: cast iron, cast steel, ordinary stainless steel and duplex stainless steel.
Low Pulse Pulp Pump
SJ type sizing pump, also known as low pulse pump. It is an ideal replacement product designed according to the actual situation of the paper industry in view of the large flow and low-head mixed-flow pumps widely used in general papermaking mills. The pulp is unstable and inconvenient to disassemble and assemble.
The pump has the advantages of high efficiency, stable pulp, long service life and convenient maintenance. The bearing is balanced in force at both ends of the pump body, and the pump casing is opened in the middle and can be repaired after opening the cover.
It is suitable for the matching of medium and high-speed paper machine pulp supply system, the use temperature is below 80 ºC, and the concentration is below 1% for pulp transportation.
Note: The pump looks from the coupling to the pump. The pump rotates counterclockwise. The inlet of the pump is on the right and the outlet is on the left. If you need to change the position of the inlet and outlet, it must be mentioned when ordering.
Vacuum Pulp Pump
Water ring vacuum pumps are suitable for pumping air and other non-corrosive, water-insoluble, and CHINAMFG particles-free gases in order to obtain a higher vacuum in a closed container. It has the characteristics of high vacuum degree, high pumping speed in high vacuum area, compact structure, stable work and convenient maintenance.
Water ring vacuum pumps are suitable for working conditions where the suction pressure is lower than -0.08MPa. The working vacuum range is -0.03—0.08MPa.
1. Compared with SK series single-stage water ring vacuum pump, it has the characteristics of high vacuum degree and high pumping speed in high vacuum area. At the same pumping rate, the shaft power is higher than 2BV and 2BE series water ring vacuum pumps.
2. Compact structure and convenient maintenance.
3. It can extract gas containing water vapor, flammable, explosive, a small amount of dust, and a small amount of liquid
4. It can work in a harsh environment.
Water Ring Vacuum Pump
Water-ring vacuum pump is a highly effective energy-saving product developed on the basis of the years’ scientific research results and production experience,by means of the energy-saving and consumption-reducing principle and combining the advanced know-how with the same products both at home and abroad.
This pump can be used either as a vacuum pump or an air compressor for the technological processes of vacuum filtering, vacuum water leading, vacuum feeding, vacuum vaporizing, vacuum concentrating, vacuum reversing, vacuum degassing, etc. And for pumping the gases which are not solved in water and contain no CHINAMFG grains in the petroleum, chemical, mechanic, medicine,food,dyeing,environmental protection.electronic etc., industrial sections. Besides, because the air compression inside of it iTs .isothermal, so the pump can also be used to pump combustible and explosive gases.
Double Flow Centrifugal Pump
S and SH pumps are single-stage double-suction, horizontal split centrifugal pumps, which are used to transport clean water and liquids with physical and chemical properties similar to water.
The maximum temperature of the liquid should not exceed 80°C, which is suitable for water supply and drainage of paper mills, mines, cities, and power stations, farmland drainage and irrigation, and various water conservancy projects.
The bearings of this type of pump are at both ends of the pump body, and the force is balanced during operation, so it has a long service life. The pump body is a center-open type, which can be repaired after opening the cover, which is very convenient.
Note: The S-type pump looks from the coupling to the pump. The pump rotates clockwise. The water inlet of the pump is on the right and the water outlet is on the left. If you need to change the location of the import and export, it must be mentioned when ordering.
Note: The SH type pump looks from the coupling to the pump. The water pump rotates counterclockwise. The water inlet of the pump is on the left and the water outlet is on the right. If you need to change the location of the import and export, you must mention it when ordering.
Middle Consistency Slurry Pump
This non-clogging pump is a new and energy-saving pulp pump. After actual use, it has the characteristics of high efficiency, no or less leakage, good anti-clogging performance, stable operation, high reliability, and compact structure.
Mainly reflected in the following aspects:
1. It adopts semi-open or full-open impeller, the clearance between the wear plate and the front side of the impeller is adjustable, and the shaft seal mainly adopts mechanical seal and selects high-precision bearings (D-level accuracy) and high-quality shaft materials.
2. Can be widely used in light industry and papermaking industries where the temperature is lower than 110C and the concentration is lower than 6%. It can also be used in industrial and urban water supply, drainage and other occasions.
Submersible slurry pump
The submersible slurry pump is a single-stage, single-suction, centrifugal, and vertical slurry pump. It is our company’s leading product. It is mainly suitable for the treatment of corrosive CHINAMFG particles in electric power, metallurgy, coal, building materials, chemical industries and other industries.
A new generation of high-efficiency and energy-saving single-stage, single-suction, centrifugal slurry pump for slurry. They are mainly suitable for processing concentrates and tailings in ore dressing plants, removing ash and slag from thermal power plants, conveying coal slime and heavy-medium coal preparation in coal preparation plants, and conveying CHINAMFG in coastal river sand mining operations. The maximum weight concentration of the slurry that can be processed is: 45% CHINAMFG and 60% ore slurry.
It is a single-stage, single-suction, vertical centrifugal slurry pump. This series of pumps adopts the internationally advanced solid-liquid two-phase flow theory and is designed according to the principle of minimum loss. The geometry of the flow-passing parts conforms to the flow state of the medium, reducing local and along-the-way hydraulic losses such as vortex and impact, thereby reducing the wear of the flow-passing parts, improving hydraulic efficiency, and reducing operating noise and vibration; this series of pumps The flow parts are made of high-hard alloy cast iron, and its material has high abrasion resistance, corrosion resistance, and impact resistance, thereby increasing its life.
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We can supply all types of pumps for paper mills. Please contact us to get the inquiry. |
Company Profile
ZheJiang CHINAMFG International Group established in 2002.We are a China Based engineering company and machinery supplier committed to offer complate solution and provide high-cost-performance equipments related to stock preparation and paper-making industry.Our head office is located in HangZhou, ZheJiang province. We have 15000 square CHINAMFG Factory Building. For years,we have insisted on taking customer’s value as our center and having strict quality-control and innovation in the whole process. With advantage technology and excellent equipment,we provide one-stop service from consultation,process design and optimization,manufacture,installation,commissing and personnel training and so on.At the same time,we can supply all kinds of stock preparation and paper making equipment and accessories.Besides,we can custom design according to customers’ requirements.
Our products have reliable quality and superior performance and have been exported to Poland,Greece,Turkey,Iran,India,Packistan,Bangladesh,Thailand,Indonesia,Philippines,Malaysia,Vietnam,Mexico,Guatemala,Costa
Rica,Columbia,Egypt etc.We have established long-term cooperation relationship with many paper mills and agent.
Honesty,cooperation and CHINAMFG are important to us.We insisted on serve our customers with high quality products,sincere service and
good reputation.We are appreciated for the long-term trust and favor from our customers.Hope we can cooperate sincerely and make
progress together with our new and old customer.
| After-sales Service: | Provide Accessories, Video Instruction |
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| Warranty: | 3 Month |
| Certification: | ISO 9001:2008, CE |
| Surface Treatment: | Spray-Paint |
| Manufacturing Process: | Casting |
| Material: | Stainless Steel |
| Customization: |
Available
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What Is the Role of Vacuum Pumps in Semiconductor Manufacturing?
Vacuum pumps play a critical role in semiconductor manufacturing processes. Here’s a detailed explanation:
Semiconductor manufacturing involves the production of integrated circuits (ICs) and other semiconductor devices used in various electronic applications. Vacuum pumps are used extensively throughout the semiconductor manufacturing process to create and maintain the required vacuum conditions for specific manufacturing steps.
Here are some key roles of vacuum pumps in semiconductor manufacturing:
1. Deposition Processes: Vacuum pumps are used in deposition processes such as physical vapor deposition (PVD) and chemical vapor deposition (CVD). These processes involve depositing thin films of materials onto semiconductor wafers to create various layers and patterns. Vacuum pumps help create a low-pressure environment necessary for precise control of the deposition process, ensuring uniform and high-quality film formation.
2. Etching and Cleaning: Vacuum pumps are utilized in etching and cleaning processes, which involve the removal of specific layers or contaminants from semiconductor wafers. Dry etching techniques, such as plasma etching and reactive ion etching, require a vacuum environment to facilitate the ionization and removal of material. Vacuum pumps aid in creating the necessary low-pressure conditions for efficient etching and cleaning processes.
3. Ion Implantation: Ion implantation is a process used to introduce impurities into specific regions of a semiconductor wafer to modify its electrical properties. Vacuum pumps are used to evacuate the ion implantation chamber, creating the required vacuum environment for accurate and controlled ion beam acceleration and implantation.
4. Wafer Handling and Transfer: Vacuum pumps are employed in wafer handling and transfer systems. These systems utilize vacuum suction to securely hold and manipulate semiconductor wafers during various manufacturing steps, such as loading and unloading from process chambers, robotic transfer between tools, and wafer alignment.
5. Load Lock Systems: Load lock systems are used to transfer semiconductor wafers between atmospheric conditions and the vacuum environment of process chambers. Vacuum pumps are integral components of load lock systems, creating and maintaining the vacuum conditions necessary for wafer transfer while minimizing contamination risks.
6. Metrology and Inspection: Vacuum pumps are utilized in metrology and inspection tools used for characterizing semiconductor devices. These tools, such as scanning electron microscopes (SEMs) and focused ion beam (FIB) systems, often operate in a vacuum environment to enable high-resolution imaging and accurate analysis of semiconductor structures and defects.
7. Leak Detection: Vacuum pumps are employed in leak detection systems to identify and locate leaks in vacuum chambers, process lines, and other components. These systems rely on vacuum pumps to evacuate the system and then monitor for any pressure rise, indicating the presence of leaks.
8. Cleanroom Environment Control: Semiconductor manufacturing facilities maintain cleanroom environments to prevent contamination during the fabrication process. Vacuum pumps are used in the design and operation of the cleanroom ventilation and filtration systems, helping to maintain the required air cleanliness levels by removing particulates and maintaining controlled air pressure differentials.
Vacuum pumps used in semiconductor manufacturing processes are often specialized to meet the stringent requirements of the industry. They need to provide high vacuum levels, precise control, low contamination levels, and reliability for continuous operation.
Overall, vacuum pumps are indispensable in semiconductor manufacturing, enabling the creation of the necessary vacuum conditions for various processes, ensuring the production of high-quality semiconductor devices.
How Do Vacuum Pumps Assist in Freeze-Drying Processes?
Freeze-drying, also known as lyophilization, is a dehydration technique used in various industries, including pharmaceutical manufacturing. Vacuum pumps play a crucial role in facilitating freeze-drying processes. Here’s a detailed explanation:
During freeze-drying, vacuum pumps assist in the removal of water or solvents from pharmaceutical products while preserving their structure and integrity. The freeze-drying process involves three main stages: freezing, primary drying (sublimation), and secondary drying (desorption).
1. Freezing: In the first stage, the pharmaceutical product is frozen to a solid state. Freezing is typically achieved by lowering the temperature of the product below its freezing point. The frozen product is then placed in a vacuum chamber.
2. Primary Drying (Sublimation): Once the product is frozen, the vacuum pump creates a low-pressure environment within the chamber. By reducing the pressure, the boiling point of water or solvents present in the frozen product is lowered, allowing them to transition directly from the solid phase to the vapor phase through a process called sublimation. Sublimation bypasses the liquid phase, preventing potential damage to the product’s structure.
The vacuum pump maintains a low-pressure environment by continuously removing the water vapor or solvent vapor generated during sublimation. The vapor is drawn out of the chamber, leaving behind the freeze-dried product. This process preserves the product’s original form, texture, and biological activity.
3. Secondary Drying (Desorption): After the majority of the water or solvents have been removed through sublimation, the freeze-dried product may still contain residual moisture or solvents. In the secondary drying stage, the vacuum pump continues to apply vacuum to the chamber, but at a higher temperature. The purpose of this stage is to remove the remaining moisture or solvents through evaporation.
The vacuum pump maintains the low-pressure environment, allowing the residual moisture or solvents to evaporate at a lower temperature than under atmospheric pressure. This prevents potential thermal degradation of the product. Secondary drying further enhances the stability and shelf life of the freeze-dried pharmaceutical product.
By creating and maintaining a low-pressure environment, vacuum pumps enable efficient and controlled sublimation and desorption during the freeze-drying process. They facilitate the removal of water or solvents while minimizing the potential damage to the product’s structure and preserving its quality. Vacuum pumps also contribute to the overall speed and efficiency of the freeze-drying process by continuously removing the vapor generated during sublimation and evaporation. The precise control provided by vacuum pumps ensures the production of stable and high-quality freeze-dried pharmaceutical products.
What Is the Purpose of a Vacuum Pump in an HVAC System?
In an HVAC (Heating, Ventilation, and Air Conditioning) system, a vacuum pump serves a crucial purpose. Here’s a detailed explanation:
The purpose of a vacuum pump in an HVAC system is to remove air and moisture from the refrigerant lines and the system itself. HVAC systems, particularly those that rely on refrigeration, operate under specific pressure and temperature conditions to facilitate the transfer of heat. To ensure optimal performance and efficiency, it is essential to evacuate any non-condensable gases, air, and moisture from the system.
Here are the key reasons why a vacuum pump is used in an HVAC system:
1. Removing Moisture: Moisture can be present within an HVAC system due to various factors, such as system installation, leaks, or improper maintenance. When moisture combines with the refrigerant, it can cause issues like ice formation, reduced system efficiency, and potential damage to system components. A vacuum pump helps remove moisture by creating a low-pressure environment, which causes the moisture to boil and turn into vapor, effectively evacuating it from the system.
2. Eliminating Air and Non-Condensable Gases: Air and non-condensable gases, such as nitrogen or oxygen, can enter an HVAC system during installation, repair, or through leaks. These gases can hinder the refrigeration process, affect heat transfer, and decrease system performance. By using a vacuum pump, technicians can evacuate the air and non-condensable gases, ensuring that the system operates with the designed refrigerant and pressure levels.
3. Preparing for Refrigerant Charging: Prior to charging the HVAC system with refrigerant, it is crucial to create a vacuum to remove any contaminants and ensure the system is clean and ready for optimal refrigerant circulation. By evacuating the system with a vacuum pump, technicians ensure that the refrigerant enters a clean and controlled environment, reducing the risk of system malfunctions and improving overall efficiency.
4. Leak Detection: Vacuum pumps are also used in HVAC systems for leak detection purposes. After evacuating the system, technicians can monitor the pressure to check if it holds steady. A significant drop in pressure indicates the presence of leaks, enabling technicians to identify and repair them before charging the system with refrigerant.
In summary, a vacuum pump plays a vital role in an HVAC system by removing moisture, eliminating air and non-condensable gases, preparing the system for refrigerant charging, and aiding in leak detection. These functions help ensure optimal system performance, energy efficiency, and longevity, while also reducing the risk of system malfunctions and damage.
editor by CX 2023-11-02