When the raw material crushing post in the phosphoric acid workshop of the chemical fertilizer plant encounters continuous rainy weather, the crusher is often blocked due to wet ore during the loading and crushing process, and the crushing capacity cannot meet the production needs, which brings hidden dangers to the stability of production.

In order to solve the problem of heavy ore crushing load and high labor intensity of operators, the workshop coordinated with the technical transformation department to install a set of ore vibrating screen screening device. Firstly, the phosphate rock in storage is first screened on the screening device, and then the large pieces enter the jaw crusher for crushing, and the screened crushed ore directly enters the vertical crusher, which not only solves the problem that all ores are processed The jaw crusher causes the problem of heavy load and easy material blocking, which reduces equipment wear and maintenance cycle, improves the working environment, reduces labor intensity, stabilizes workshop production, and creates favorable conditions for the next process to grind qualified pulp.