Chemical process pump is pumping the chemical production process of various skies. The many varieties of chemical process pumps, according to theories can be divided into vane pump, centrifugal pump, axial flow pump, mixed-flow pump, Some pump, vortex pump; Volume Pump, such as reciprocating pumps (including piston pump, piston pump diaphragm pump, etc.); rotary pumps (including screw pump, the liquid ring pump gear pump, the vane pump, vacuum pumps, radial piston pump, etc.); other types of pump If jet pump, electromagnetic pump, pump water hammer. By the production process or product characteristics can be divided into high-methylamine pump cryogenic pumps, and other phosphate slurry pump.
In the chemical or petrochemical production, pumping at high temperature, low temperature (or ultra-low temperature), high pressure, flammable and explosive. toxic under strong corrosive media, and some high inlet pressure, high-lift, high viscosity, low flow. high cavitation conditions, the performance of the chemical pump, rather harsh, especially for corrosion resistance. not allowed to leak (of toxic medium) and the requirement for high wear resistance. To meet the special requirements for chemical production, the industry also plans to specialize in production of chemical pumps, plastic pump, pump glass. Ceramic pump graphite pump, pump shielding, magnetic pump, pump and other impurities. Phosphate fertilizer production process of pumping the slurry medium mainly phosphate, phosphoric acid slurry various filtrate concentrated phosphoric acid dilute phosphoric acid, sulfuric acid, dilute sulfuric acid and fluorosilicic acid, pump vulnerable to corrosion and erosion wear or corrosion medium. Phosphoric Acid Pump phosphate production process is generally referred to various pump is a very strong representation of corrosion resistance and wear resistance of pump types. In the initial development of the phosphate fertilizer industry, the chemical used , some only have a lifespan of one week, Therefore, experts in the domestic pump phosphate slurry pump design, material testing, Seal research in the field of research and development for a lot. In phosphate slurry pump design, it is first necessary to solve the corrosion and erosion wear or corrosion problems. Therefore, the design and structure of the pump casing and impeller special consideration should be matching each other. Foreign-metallic materials used in slurry pump, the media situation is different series. Domestic factories and research units also conduct various corrosion and wear resistance of materials research Ferritic stainless steel to create their own, dual-phase steel, austenitic stainless steel and other materials series. Many professional domestic phosphate slurry pump factory, and it is also the Chinese Academy of Sciences, the University Design Institute. Institute to participate in research and development, phosphate slurry pump for domestic issues have now largely been resolved.
The home has built large, a small phosphate compound fertilizer production projects, and installation of the slurry pump for about 30-40 different medium Taiwan, a small device about the slurry pump types of Taiwan 20-30, Pump average life expectancy for every six months, is a relatively large market space. In addition, there are a number of large domestic enterprises phosphate production infrastructure is in progress or has just been completed, with a group, AP renovation and expansion of small projects, and to provide a vast domestic market phosphate pump room.