Steel ball continuous emission device for ball grinder impact detection

Abstract

The present invention discloses a steel ball continuous emission device for ball grinder impact detection. The device comprises an air compressor (3), a pressure reducing valve (2), an air chamber (14), a ball inlet pipe (4), a bore (7), and a cam mechanism. The air chamber (14) is connected to the pressure reducing valve (2) through a soft pipe (1). The pressure reducing valve (2) is connected to the air outlet of the air compressor (3). The air outlet of the air chamber (14) is connected to a solenoid shut-off valve (17) through an external screwed pipe joint (16). The solenoid shut-off valve (17) is connected to an air inlet end disk (5) through the external screwed pipe joint (16) and is used for controlling the closing and opening of the air outlet of the air chamber (14). The cam mechanism is used for realizing the periodical feeding and retreat of the air inlet end disk (5). The targets of the control of the impact emission steel ball speed and the miniaturization of a device size can be realized, steel balls can be continuously loaded with intervals, and the continuous impact emission can be realized.

Description

technical field [0001] The invention relates to the field of impact detection of large ball mills, in particular to a steel ball continuous launching device used for impact detection of ball mills. Background technique [0002] With the continuous increase of the diameter of the ball mill drum, the maximum diameter has reached 7.9m. Due to the complex impact and collision movement process inside the ball mill, it is impossible to effectively test and simulate the grinding process. Most of them are used for testing with molding equipment. , such as building a scaled-down ball mill, but the test cost is relatively large, and the dynamic mechanical properties of the rock and liner during the impact and collision process cannot be accurately obtained. Related launching devices, such as the Hopkinson rod launching device, use multi-stage light gas cannons to achieve launching, which involves impact activities such as explosions, and the medium uses mostly light gas, resulting in ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art, to overcome the defects of existing related devices, such as bulky volume, high cost, uncontrollable launch speed and uncontrollable realization of continuous gap launch and continuous loading of launch balls, and the like. A new type of continuous impact launch device is proposed, which can more accurately simulate the impact velocity of steel balls in a ball mill, and can realize continuous gap launch and continuous loading of launch balls

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