ZHOU Airong;WANG Gang;

• 1:Daichiba Coal Preparation Plant
• 2:Sichuan Guang Wang Group Company

Abstract：

Aiming at the problems of moisture instability of filter cake,high exhaust noise and failure of valve seals in the process of " screw compressor and plate and frame diaphragm filter press" in Daichiba coal preparation plant,the air press system and hydraulic press system were compared.The air press system was improved and the effect was analyzed.The results show that compared with compressed air press,hydraulic press has the advantages of low moisture content,low energy consumption,no noise pollution,high force density,good stability,effective equipment protection,high safety and easy maintenance,but it also exists the disadvantages of poor reactivity,high performance requirement of press pump,and large floor area,and so on.By transforming air pressure membrane filter plate,hydraulic press supporting facilities and hydraulic press control safety mechanism,the coal preparation plant can save 505,900 yuan per year.

Key Words： diaphragm filter press;hydraulic press;air press;coal slime recovery

Abstract:

Keywords:

Foundation:

Authors: ZHOU Airong;WANG Gang;

DOI: 10.13226/j.issn.1006-6772.18012501

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