Pebble coal bucket jacking and sealing system of coal mill

A sealing system and coal mill technology, applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve problems such as serious pollution, spillage of stone coal, etc. Possible Effects of Ash Spill

Active Publication Date: 2019-02-26
DATANG BINZHOU POWER GENERATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortage of serious environmental pollution in the open discharge process of coal mill stone coal in the prior art, and provide a coal mill stone coal hopper jacking sealing system, which converts open slag discharge into closed slag discharge , by jacking up the sealing unit, the pebble coal hopper is closely combined with the lower part of the slag discharge door, effectively solving the environmental pollution problem caused by pebble coal overflow caused by the pebble coal discharge process

Method used

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  • Pebble coal bucket jacking and sealing system of coal mill
  • Pebble coal bucket jacking and sealing system of coal mill
  • Pebble coal bucket jacking and sealing system of coal mill

Examples

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Effect test

Embodiment 1

[0036] Such as Figure 1-Figure 3 As shown, the coal mill stone hopper jacking sealing system of this embodiment includes a stone coal hopper 200, a fixed plate 110 arranged at the bottom of the slag discharge pipe 100, and fixed brackets 300 arranged on both sides of the stone coal hopper 200. The slag pipe 100 extends obliquely downward and is provided with a fixed plate 110 at the bottom, and the top of the fixed bracket 300 is connected with the fixed plate 110. A slag receiving port 210 matching with the slag discharge port 120 is provided, and a jacking unit for driving the gravel coal hopper 200 to lift is provided on the fixed bracket 300 . Through the driving action of the jacking unit, the gravel coal hopper 200 can be lifted up and down, and the slag connecting port 210 on the top of the gravel coal hopper 200 can be raised to directly below the slag discharging port 120 when slag discharge is required, and the slag connecting port 210 and the slag discharging port ...

Embodiment 2

[0039] The basic structure of the coal pulverizer stone coal hopper jacking sealing system of this embodiment is the same as that of Embodiment 1. Furthermore, the jacking unit in this embodiment includes a motor 310, a lead screw 330 and a screw nut 340 that are co-located, and the motor 310 The output end of the output end is connected to one end of the lead screw 330 through the reducer gear 320, and the other end of the lead screw 330 is connected to the bottom of the fixed plate 110 and rotated. The slider 360 is provided with a support block 230 on the outside of the top of the gravel coal hopper 200 , and the slider 360 is correspondingly located below the support block 230 . In this embodiment, through the cooperation of the conventional lead screw 330 and the screw nut 340 in the industry, the slider 360 is fixed on the screw nut 340, and the rotary motion of the lead screw 330 is converted into the linear motion of the slider 360, so as to realize the control of the s...

Embodiment 3

[0043] The basic structure of the coal pulverizer stone coal hopper lifting sealing system in this embodiment is the same as that in Embodiment 2. Furthermore, in this embodiment, the lower part of each fixed bracket 300 is respectively provided with a position guide 350, and the position guides on both sides 350 relatively extends toward the direction close to the gravel coal hopper 200 . The guide piece 350 guides and limits the gravel coal hopper 200 from both sides, and the end of the guide piece 350 close to the gravel coal hopper 200 can be set as a roller structure to prevent the gravel coal hopper 200 from shifting left or right or shaking during the lifting process phenomenon, and the position guide 350 can be set as a telescopic type, for example, the telescopic control of the cylinder telescopic rod to the position guide 350 can be realized by connecting the cylinder. 200. Correspondingly, the two sides of the gravel coal hopper 200 can respectively be provided with...

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Abstract

The invention discloses a pebble coal bucket jacking and sealing system of a coal mill, and belongs to the field of coal mills. The pebble coal bucket jacking and sealing system comprises a pebble coal bucket, a fixing plate arranged at the bottom of a slag discharging pipe, and fixing brackets arranged on the two sides of the pebble coal bucket, wherein a slag discharging port communicated with the slag discharging pipe is formed in the fixing plate; a slag receiving port matched with the slag discharging port is formed in the top of the pebble coal bucket; jacking units for driving the pebble coal bucket to lift are arranged on the fixing brackets; a guiding component is arranged on the lower part of each fixing bracket; the guiding components on the two sides oppositely stretch in the directions drawing close to the pebble coal bucket. The pebble coal bucket jacking and sealing system overcomes the defect of serious environment pollution in the open pebble coal discharging process of the coal mill in the prior art, converts open slag discharge into closed slag discharge, and tightly combines the pebble coal bucket with the lower position of a slag discharging door to effectivelysolve the environment pollution problem caused by pebble coal spilling in the pebble coal discharging process.

Description

technical field [0001] The invention relates to the technical field of coal pulverizers, and more specifically, relates to a lifting sealing system for coal pulverizer gravel hoppers. Background technique [0002] At present, most of the pebble coal discharge devices of coal mill manufacturers equipped with coal mills adopt open slag discharge technology, that is, the discharge of pebble coal is controlled by opening and closing the slag discharge door of the pebble coal discharge system, and the discharged pebble coal freely falls into the ground ahead of time. It is preset in the pebble coal hopper vertically below the slag discharge door, discharged on the spot, and manually cleaned and transported. During the slag discharge process, pebble coal (carrying part of the coal powder) often overflows, and the pebble coal is seriously dusty during the final slag discharge and transfer process. , leading to very poor working conditions in the plant, which seriously affects the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C23/00F16J15/06
CPCB02C23/00F16J15/06
Inventor 李伟张德修孙德金丁浩杜华峰
Owner DATANG BINZHOU POWER GENERATION CO LTD
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