Downhole vibrating screening machine

Abstract

The invention discloses a downhole vibrating screening machine. The downhole vibrating screening machine comprises a rack, a vibrator and a servo motor. The rack is provided with a primary screen bodyand a secondary screen body slidingly connected with the primary screen body, the primary screen body and the secondary screen body are obliquely arranged, primary screen holes in the primary screenbody are smaller than secondary screen holes on the secondary screen body, a small block discharge port is formed in the bottom of the primary screen body, a middle block discharge port is formed in the bottom of the secondary screen body, a large block discharge port is formed in the lower end of the secondary screen body, multiple baffle plates are welded to the primary screen body and the secondary screen body, the vibrator is mounted on the rack, and the vibrator is connected with the servo motor through a belt. The downhole vibrating screening machine has a telescopic folding function, and can be conveniently stored and used downhole, raw coal can be screened downhole at multiple stages, the discharge ports are connected with conveying belts, the downhole vibrating screening machine can cooperate with a following gangue discharge system for assembly line work, automation is achieved, and the production efficiency of a gangue industry line is further improved.

Description

technical field [0001] The invention relates to the technical field of vibrating screens, in particular to an underground vibrating screener. Background technique [0002] Vibrating screens are mainly used for material classification and are widely used in energy, metallurgy, ceramics, building materials, chemical and other industries. In the coal mine industry, coal gangue is classified, but most coal mines do not deal with it underground. Heaping it on gangue piles will bring great threat and harm to the ecological environment and conditions of the mining area. If the screening operation of raw coal can be completed underground, it will be of great significance to the development of the coal mining industry. [0003] Most of the existing coal yards use a single-layer vibrating screen, which requires multiple screening processes to obtain the coal gangue with the required particle size. Not only is the screening efficiency low, but it also occupies a large area and consum...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing coal yards use a single-layer vibrating screen, which requires multiple screening processes to obtain the coal gangue with the required particle size, which not only has low screening efficiency, but also occupies a large area and consumes a lot of energy, which is not conducive to energy conservation and environmental protection.

There are also large-scale coal yards that use multi-layer vibrating screens to screen coal gangue to achieve multi-level screening of coal gangue at one time. However, in order to ensure the screening accuracy of multi-layer vibrating screens, there are requirements for the distance between the upper and lower screen bodies. As a result, the multi-layer vibrating screen needs a certain working space, which cannot be applied to the small space underground.

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