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Vibrating screen for coal picker

A technology of vibrating screen and coal separator, which is applied in the direction of filter screen, solid separation, grid, etc., can solve the problems of short residence time, selection and screening, low efficiency, etc., and achieve strong coal retention effect, high degree of automation, and reduce The effect of labor burden

Active Publication Date: 2016-04-13
SHANDONG DONGSHAN XINYI COAL MINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the existing coal preparation machine selects coal, because the raw coal directly slides from the vibrating screen, the residence time is short, and it cannot be fully selected and screened. In this way, the same batch of raw coal may have to go through multiple screenings before it can be completely distinguished, resulting in The coal preparation process has high cost, low efficiency, and increases the labor burden of workers

Method used

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  • Vibrating screen for coal picker
  • Vibrating screen for coal picker

Examples

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Effect test

Embodiment 1

[0018] As shown in the accompanying drawings, a coal preparation vibrating screen of this patent is used in a coal separator with an inclined setting of the vibrating screen to screen clean coal from raw coal. The time stays on the vibrating screen, so that the raw coal can be fully screened.

[0019] The retention device includes a frame 6, a running gear 5, a crosspiece 2, an electric push rod 3, a positioning sheath 4 and a connecting plate 1; the running gear 5 and the crosspiece 2 are arranged vertically in the frame 6, and the frame 6 is divided into multiple Coal stagnation area; the running rail 5 is fixedly connected to the frame 6, the rail 2 passes through the side of the frame 6 and can be drawn out from the frame 6; the positioning sheath 4 is arranged on the outside of the frame 6 where it meets the rail 2, and the rail 2 passes through the positioning After the sheath 4 is inserted into the frame 6; the positioning sheath 4 is set to prevent the crosspiece 2 fro...

Embodiment 2

[0022] It is the same as Embodiment 1, but the electric push rod 3 in the retention device is replaced by a hydraulic cylinder or an air cylinder.

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Abstract

The invention introduces a vibrating screen for a coal picker. The vibrating screen for the coal picker is applied to the coal picker of which the vibrating screen is obliquely arranged and can be used for screening cleaned coal from raw coal. The vibrating screen for the coal picker is characterized in that a retention device is arranged on the vibrating screen and enable long-time retention of the raw coal on the vibrating screen, thus the raw coal can be fully screened; the retention device comprises a frame, upright bars, transverse bars, an electric pushing rod, positioning sheaths and a connecting plate. The vibrating screen for the coal picker is high in coal retention effect and can fully screen and distinguish the raw coal; in addition, the vibrating screen is high in automation degree, and is easily matched with an existing coal picker; the coal picker can continuously efficiently work by controlling the coal adding frequency and the telescoping frequency of the electric pushing rod; the vibrating screen is conveniently adapted to the modern development of coal picking, and can reduce the workload of workers.

Description

technical field [0001] The invention relates to the technical field of coal mine equipment, in particular to a vibrating screen for a coal separator. Background technique [0002] Coal preparation is also called coal washing, which is the process of sorting clean coal that meets the quality requirements of users from raw coal. The coal used for coking has certain requirements on ash and sulfur content, and clean coal that has been washed must be used. The lithofacies composition of coal and the quantity, type, nature and distribution state of minerals in coal are all factors that affect the selectivity of coal. According to the degree of difficulty of raw coal selectability, the commonly used processes in coal preparation plants include jigging, dense medium cyclone, dense medium shallow tank, moving screen jigging, flotation, etc. Other coal preparation methods include winnowing, spiral separation and so on. [0003] However, when the existing coal preparation machine se...

Claims

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Application Information

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IPC IPC(8): B07B1/28B07B1/46
CPCB07B1/28B07B1/46
Inventor 孙硕
Owner SHANDONG DONGSHAN XINYI COAL MINE CO LTD