High-pressure and high-efficiency roller press grinding system with screening device

Abstract

The invention discloses a high-pressure and high-efficiency roller press grinding system with a screening device. The high-pressure and high-efficiency roller press grinding system comprises a roller press and a ball mill. A weighing bin is arranged above the roller press. Fed materials are squeezed and crushed through pressure of a hydraulic system of the roller press. Fine powder discharged from a discharging port of the roller press enters the mechanical screening device through a lifter. Particles smaller than the aperture of a screen of the mechanical screening device enter the ball mill and then are ground in a fine mode and shaped so that finished products are obtained. The high-pressure and high-efficiency roller press grinding system with the screening device adopts a mechanical screening and classification mode instead of a traditional winnowing classification mode to reduce system energy consumption. The yield of the fine powder is increased through high pressure operation of the roller press. Adaptability to mechanically screened materials of the ball mill is realized through control over materials leaking from the edge of the roller press. According to the high-pressure and high-efficiency roller press grinding system with the screening device, the system yield is increased entirely, and system energy consumption is lowered.

Description

technical field [0001] The invention mainly relates to a grinding production process in the building material industry, in particular to a high-pressure, high-efficiency roller press grinding system with a screening device in the cement grinding production process. Background technique [0002] China's cement grinding process mainly has the following two forms: the ball mill grinding system and the combined grinding system of roller press and ball mill. Among them, the technology of final grinding of ball mill was developed earlier. It has the advantages of simple process and low investment, but it has low efficiency and high energy consumption. It is a relatively backward process and is being rapidly eliminated. The combined grinding technology of roller press and ball mill has developed rapidly in recent years. It has the characteristics of high grinding efficiency and low energy consumption. It has become the mainstream process of cement grinding in China. Most of the new...

AI Technical Summary

Problems solved by technology

Among them, the technology of ball mill final grinding was developed earlier, which has the advantages of simple process and low investment, but low efficiency and high energy consumption, which is a relatively backward process and is being rapidly eliminated

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