Technical regulations on pump engineering of petrochemical industry published and issued

Need to transport medium in the process of phosphate fertilizer are phosphate rock slurry, phosphoric acid slurry, all kinds of filtrate, concentrated phosphoric acid dilute phosphoric acid, sulfuric acid and dilute sulphuric acid and fluosilicate, pumps are highly vulnerable to medium corrosion or corrosion and erosion wear.Phosphoric acid slurry pump is a general term for all kinds of pumps in the process of phosphate fertilizer production.In the early development of phosphate fertilizer industry commonly used chemical corrosion-resistant pumps, some live only a week, therefore, pump industry experts at home and abroad in the structure of phosphoric acid slurry pump design, material testing, the respect such as sealing research done a lot of research and development work.

In the design of phosphoric acid slurry pump, the first thing to solve is corrosion resistance or corrosion and erosion wear.Therefore, special consideration should be given to the structural design and the matching between pump casing and impeller.The metal materials used in the foreign phosphoric acid slurry pump are different series according to the state of the medium.Domestic manufacturers and research units separately to corrosion resistance and wear resistance of various materials research, create their own ferritic stainless steel, dual phase steel and austenitic stainless steel and other materials series.There are many professional phosphoric acid slurry pump manufacturers in China, as well as Chinese academy of sciences, university, design institute, research institute and other research and development, and the domestic production of phosphate slurry pump has been basically solved.

Has been built in large, medium and small domestic phosphate &compound fertilizer production project, large and medium-sized equipment, about 30 ~ 40 units, all kinds of slurry pump, a small device about 20 ~ 30 sets, all kinds of slurry pump according to each pump life expectancy for six months, the market space is relatively large.In addition, there are some big domestic phosphate fertilizer production enterprises or construction is still in progress, just was finished with a batch of medium and small ammonium phosphate reconstruction project, for domestic p pump provides a broad market space.