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Strip mesh screen face coal screening machine with material poking combs

A technology of coal sifter and strip mesh, applied in the direction of sieve, solid separation, grille, etc., can solve the problems of unseen technical solutions, stalls, failure of normal operation of coal sifter, etc., and achieve the effect of reducing energy consumption

Active Publication Date: 2017-03-15
马林林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most prominent performance is in the coal screening process, the screen blocking phenomenon is common, causing the coal screening machine to fail to operate normally or even stop, affecting the overall production efficiency of the power plant
Although technicians in this field have proposed improvement measures from different angles and in different ways, there is no feasible technical solution that can completely solve the problem

Method used

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  • Strip mesh screen face coal screening machine with material poking combs
  • Strip mesh screen face coal screening machine with material poking combs
  • Strip mesh screen face coal screening machine with material poking combs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] refer to figure 1 , a kind of strip screen surface coal screening machine with a material comb, including a complete machine frame 1, a feed hopper 2 for introducing incoming materials into the screen body, a plane screen body 3 installed obliquely relative to the ground, and a motor, a speed reduction mechanism, The sieve body reciprocating swing drive device 5 composed of transmission components.

[0033] refer to figure 1 , figure 2 , image 3 , the sieve body 3 is made up of a sieve frame 3-2 and a sheet-shaped sieve bar 3-1 connected to the sieve frame to form a screen. In this embodiment, the sieve bar is arranged vertically to the material flow direction (that is, the length direction is horizontal).

[0034] refer to figure 1 , Figure 4 , Figure 5 , the material comb 4 located under the screen body is composed of comb teeth 4-1 and a tooth seat (comb back) 4-2 that fixes a plurality of comb teeth in a row. The two sides form slopes facing downwards. ...

Embodiment 2

[0042] refer to Figure 10 , a kind of bar screen surface coal sieving machine with comb, comprises complete machine frame 1, the screen body 3 that is installed on the frame.

[0043] refer to figure 2 , image 3 , Figure 10 The sieve body 3 is composed of a sieve frame 3-2, sheet-shaped sieve bars 3-1 fixed on the sieve frame and arranged in parallel at a set interval, and side retaining nets 3-3 erected on the sieve body at both ends of the sieve bar. The wide surface of the sheet-shaped sieve bars is in the vertical direction, and strip-shaped sieve mesh holes are formed between the sieve bars, and the sieve bars are arranged perpendicular to the material flow direction. On the sieve body 3 there are several sieve bars 3-4 intersecting with the sieve bars 3-1 and fixed on the screen frame to support the middle beam 3-4.

[0044] refer to Figure 12 , the sieve body 3 is installed on the frame 1 through the wheels 12 rolling in the bar direction and the rails 11 cons...

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Abstract

A strip mesh screen face coal screening machine with material poking combs comprises a rack, a feeding hopper, plane screen bodies mounted in the manner of inclining relative to the ground and screen body drive devices. According to the improvement, a screen mesh in each screen body is composed of screen strips arranged in parallel according to the set distance; the corresponding screen mesh hole anti-blocking combs are arranged below each screen mesh and each composed of comb teeth and a tooth seat enabling the multiple comb teeth to be fixed into a row; the comb teeth of each anti-blocking comb upwards stretch into corresponding screen mesh holes; and a screen body drive mechanism is mounted on the rack. The strip mesh screen face coal screening machine has the positive effects that the function of forcefully poking away materials instantly blocking the screen mesh holes is achieved; the possibility that fault coal high in water content, ash content and viscosity blocks screens is eliminated; the phenomenon of previous normal screen blocking is avoided; and the technical problem troubling domestic heat-engine plants for a long time are solved. Meanwhile, energy consumption for completing screening of fault coal of the same quantity can be reduced by half or above compared with energy consumption of an existing screening machine.

Description

technical field [0001] The invention belongs to operating machinery, and in particular relates to a bulk material sorting screen. Background technique [0002] Existing screening machines for bulk materials such as coal can normally operate normally when screening raw coal whose moisture and ash content do not exceed the standard, and complete the particle size screening operation. However, in my country at present, due to the influence of raw ore quality, human factors in the mining and circulation process, it has become an indisputable fact that most of the raw coal that reaches users is low-quality coal with high water content and high ash content. For thermal power plants that use this kind of raw coal in large quantities, it obviously increases the difficulty of handling the coal before putting it into the furnace. The most prominent performance is in the coal screening process, the screen blocking phenomenon is common, causing the coal screening machine to fail to ope...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07B1/28B07B1/50
CPCB07B1/28B07B1/50
Inventor 马林林
Owner 马林林
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