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A Horizontal Mixed Flow Pump represents an intermediate design between single-stage end suction centrifugal pumps and horizontal axial flow pumps. This pump type features large flow capacity, moderate head, high efficiency, and broad applicability.
These pumps are predominantly employed in flue gas desulfurization systems, earning them the common names of desulfurization pumps or FGD circulating pumps. Mixed flow pumps are particularly suited for handling solid-liquid mixtures in complex processes, offering benefits including compact axial dimensions, stable operation, simple construction, and easy installation.
Key Applications of Horizontal Mixed Flow Pumps:
Our highly efficient, reliable solutions are used wherever desulfurization slurry medium need to be transported.
Mixed flow pumps made from cast iron could be used in Agricultural Drainage and Irrigation, Flood Prevention and Drainage, Water Conservancy Projects, Sewage Treatment, Power Plant and other cooling system.
Performance range of Horizontal Mixed Flow Pumps:
Parameters of Chemical Centrifugal Pumps:
| Flow rate: | Q= 500~16000 (m³/h) |
| Total head: | H=13~65 (m) |
| Pump speed: | n=490/980rpm |
| Fluid s.g.: | γ≤1.5 |
| Fluid temperature: | T=0~145ºC |
| Solid content: | ≤60% |
| Cl- concentration: | ≤60000ppm |
Structure of the Horizontal Mixed Flow Pumps:
| 1 Front pump cover | 8 Front bearing gland |
| 2 Impeller nut | 9 Bearing housing |
| 3 Impeller | 10 Shaft |
| 4 Short shaft sleeve | 11 Bearing box |
| 5 Pump body | 12 End bearing gland |
| 6 End pump cover | 13 Bracket |
| 7 Mechanical seal |
The body of a horizontal mixed flow pump alongs the radial diffusion, so the axial size is short, the pump unit runs stably.
The Features of Chemical Centrifugal Pumps:
1. The hydraulic model is optimized using CFD, ensuring excellent anti-cavitation performance.
2. The rotor part can be adjusted via the bearing housing, allowing convenient restoration of pump performance after minor wear.
3. Axial direction adjustable rotor part. The gap between the impeller and front cover can be adjusted to maintain stable, high-efficiency operation.
4. Pump diameter ranges from 200 mm to 900 mm, with proven sales records for each specification.
5. The discharge direction can be customized to meet process requirements.
Zigong Pump & Valve has performed in-depth research on mixed flow pump hydraulic performance. In collaboration with Southeast University, we established a fluid laboratory that extensively employs Computational Fluid Dynamics (CFD). CFD simulations analyze fluid motion inside the pump, testing efficiency and performance. This provides data support and theoretical guidance for hydraulic optimization, impeller refinement, and guide vane enhancement.
Through continuous innovation in fluid machinery, our mixed flow pumps achieve higher efficiency, smoother operation, and superior quality compared to similar products.
| Cr30 | Cr30 is a kind of high chromium corrosion-resistant and wear-resistant cast steel with ferrite matrix. It not only has the same general corrosion resistance as Austenitic stainless steel, but also has excellent resistance to chloride stress corrosion, pitting corrosion and crevice corrosion. |
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Cr30A
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Cr30A is specially used in limestone slurry circulating pump for flue gas desulfurization in thermal power plants. After adding Ni and Cu elements, its resistance to chloride ion corrosion is greatly improved. Because this material has high hardness, corrosion resistance and corrosion resistance, it is used to manufacture the wearable plates, shafts and impellers of desulfurization mixed flow pumps. |
| Cr26 | Cr26 is a chromium-based wear-resistant white cast iron with eutectic carbide M7C3 + austenite, which has an excellent performance of wear-resistant. The material has high chromium content and contains copper element. It has certain corrosion resistance and high temperature oxidation resistance, and could withstand large impact loads and wear of hard particles. |
| Cr33 | Cr33 is composed of ferrite, austenite and carbides. It has a high hardness at the same time (HRC about 44), but also can adapt to a certain degree of acid corrosion (PH >2). |
| 2605N |
2605N is a special cast ferritic-austenitic duplex stainless steel, specially developed for flue gas desulfurization in coal-fired boilers. In the field of chloride solution containing solid, it has good wear and corrosion resistance, and excellent casting performance and mechanical properties. |
| 2605 CD4MCuN | 2605 CD4MCuN is a low-carbon duplex stainless steel whose wear and corrosion resistance are superior to ordinary stainless steel. It also has good resistance to stress corrosion in media containing chloride ions. |
| 1.4468 (00Cr25Ni6Mo3N) | It belongs to one of the second generation of duplex stainless steel, by adjusting the content of carbon, nitrogen and molybdenum, it has stronger pitting resistance and crevice corrosion resistance. It has strong resistance to chloride pitting and stress corrosion. |
| ASTM-A890 5A (00Cr25Ni7Mo4N) (ASF2507) | This super duplex stainless steel is designed for harsh media environments, especially chlorine-containing environments such as seawater. |
| MM4 | It is austenitic duplex stainless steel, with good casting properties, high strength, toughness and hardness, can be welded. It not only has very good corrosion resistance, but also has good wear resistance. |
| 17-4PH (0Cr17Ni4CuNb) | It is martensitic precipitation-hardened stainless steel, which has a low carbon content, a high chromium content, and also contains copper, which has strong corrosion resistance. |
Based on CFD technology, Optimize pump hydraulic performance more efficiently.
Chemical centrifugal process pumps, the optimised hydraulic design delivers superior performance through high efficiency impellers and volutes casings, contributing to low energy consumption subsequent total cost of ownership. Adopting the optimization algorithm provided by Isight, it integrates the functional optimization platform of 3D modeling software Catia, grid division software ICEM and numerical simulation software CFX.
Pump Configuration:
We have eight modernized workshops covering 12,000 square meters, which producing ability was designed as 18000 pieces per year. The factory consists of foundry workshop, finish-machining workshop, plate welding workshop, assembly workshop and testing center. The maximum lifting ability for tramelling crane is 50 metric tons; There are 510 sets of large and essential processing facilities which enable the requirements for producing all kinds of industrial pumps.Casting of parts and components is an important part of the industrial pump production process. The precise control of the pump material smelting and the flow path size of the over-current components is our key control program for the quality of the pump products. The annual production capacity of 8,000 tons of alloy cast iron and dozens of new casting equipment such as AOD refining furnace and spectrum analyzer, as well as a group of skilled stylists, ensure the excellent quality of our castings.
HOT SELLING PUMPS
CERTIFICATES & PATENTSTESTING
The comprehensive pump testing center. Make sure the quality control can be refined in the material inspection,components check,performance test.
Q: How long is your factory history?
A: Our factory was established in 1967.
Q: How many staffs does your factory have?
A: We have around 500 staffs.
Q: What international certificates does your factory have?
A: We have API, CE, ISO9001...
Q: Does your factory have foundry for yourself?
A: We have our own two foundries in our factory.
Q: What after sales service your factory can provide?
A: Generally, most of the issues can be solved by free guidance of video calls. But paid site service is also available.
Q: What is your product warranty?
A: 12 months since commissioning or 18 months after shipment,whichever is earlier.
Q: What is your factory's annual output capacity?
A: Around 20,000 pcs of various type of pumps.
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