Chemical process pump is a general term for various pumps in the chemical production process. There are many types of chemical process pumps, which can be divided into vane pumps according to their function principle, such as centrifugal pumps, axial flow pumps, mixed flow pumps, partial flow pumps, vortex pumps, etc. Positive displacement pumps such as reciprocating pumps Pump, diaphragm pump, etc.), rotary pump (including screw pump, liquid ring pump gear pump, vane pump, Roots pump, radial piston pump, etc.); other types of pumps, such as jet pump, electromagnetic pump, Wait. According to the production process or product characteristics, can be divided into high-pressure methylamine pump, cryogenic pump, phosphor slurry pump.
In chemical or petrochemical production, the pump is working under high temperature, low temperature (or ultra-low temperature), high pressure, flammable, explosive and toxic corrosive media, and some are still under high inlet pressure, high lift, high viscosity, low flow, High cavitation conditions, the performance of the chemical pump made quite demanding requirements, especially for corrosion resistance, leakage is not allowed (for toxic media) and wear resistance demanding. In order to meet the special requirements of chemical production, the chemical industry also specializes in the production of chemical pumps, such as plastic pumps, glass pumps, ceramic pumps, graphite pumps, shielded pumps, magnetic pumps and impurity pumps.
The main media that need to be transported in the process of phosphate fertilizer production are phosphate slurry, phosphate slurry, various filtrates, concentrated phosphoric acid, phosphoric acid, concentrated sulfuric acid, dilute sulfuric acid and fluorosilicic acid. The pump is highly susceptible to medium corrosion or erosion and erosion. Phosphoric acid slurry pump is a general term for various pumps in the production of phosphate fertilizer and is a very representative type of pump that is resistant to strong corrosion and abrasion. In the early stage of development of phosphate fertilizer industry, commonly used chemical corrosion-resistant pump, and some life expectancy is only one week, so the pump industry experts at home and abroad in the phosphate slurry pump structure design, material testing, sealing research conducted a lot of research and development. In the phosphor slurry pump design, the first thing to be solved is corrosion or corrosion and erosion problems. Therefore, special consideration should be given to the structural design and the matching between the pump housing and impeller. Foreign phosphoric acid slurry pump used in metal materials, is based on the media using different series. Domestic manufacturers and research institutes also conducted research on the corrosion performance and wear resistance of various materials to create their own ferritic stainless steel, dual-phase steel, austenitic stainless steel and other materials. Many domestic phosphate slurry pump professional manufacturer, but also the Chinese Academy of Sciences, universities, design institutes, research institutes involved in scientific research and development, phosphoric acid slurry pump localization problem has been basically solved.
Among the large, medium and small-sized phosphate compound fertilizer production projects in China, there are about 30 to 40 slurry pumps for large and medium-sized plants, 20 to 30 slurry pumps for medium and small sized plants, The average life expectancy of each pump 6 months, the market space is relatively large. In addition, there are still some large-scale phosphate fertilizer production companies in China that have just completed their construction or are still under construction. Coupled with a number of small and medium-sized ammonium phosphate expansion and expansion projects, they provide a vast market for domestic phosphate fertilizer pumps.
Pulverizer Machine
Pulverizers are machines that pulverize large solid materials to the required size.
According to the size of the crushed material or the crushed material, the mill can be divided into coarse crusher, medium crusher, fine mill and superfine mill. There are four kinds of external forces applied to the solid in the grinding process: pressing, cutting, impact and grinding. Press rolling is mainly used in coarse and medium crushing, suitable for the crushing of hard materials and bulk materials. Shearing is mainly used in fine crushing, suitable for the crushing of ductile materials. Impact is mainly used in medium crushing, fine grinding, ultrafine grinding, suitable for crushing brittle materials. Grinding mainly in fine grinding, ultrafine grinding, suitable for small pieces and fine particles.
The crusher makes use of the high speed relative motion of the movable tooth plate and the fixed tooth plate, so that the crushed object can be crushed by the comprehensive action of tooth impact, friction and the impact between the materials. The crusher is suitable for crushing Chinese herbs, precious medicinal materials, ores and chemical raw materials in small batches in various varieties, alloys, metallurgy, geology, scientific research and other units.
The pulverizer machine has the advantages of simple structure, solid, stable operation and good crushing effect. The pulverized material can be discharged directly from the grinding chamber of the main machine. The particle size can be obtained by replacing the mesh screen with different aperture. The powder collecting chamber adopts the completely closed silencer structure, which can effectively reduce the working noise. In addition the machine is all stainless steel. The inner wall of the casing is machined to achieve smooth surface, which changes the phenomenon of rough inner wall and powder accumulation of the previous models, so that the production of drugs, food, chemical industry and so on is more in line with national standards and meet the requirements of GMP.
Pulverizer Machine,Crushing Machine,Milling Machine,Grinding Mill, Grinding Machine
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