Anti-jamming pneumatic slide plate gate of pulverized coal pipeline and work method based on anti-jamming pneumatic slide plate gate

A technology for pulverized coal pipelines and sliding door, which is applied in the direction of valve operation/release devices, sliding valves, engine components, etc. It can solve the problem of increasing the frictional resistance between the sliding plate and the sealing gasket, making the control system instructions impossible to implement, and affecting the safety of the unit Economical operation and other issues, to achieve the effect of good sealing, tight shut-off, and good rigidity

Active Publication Date: 2015-12-09
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One is that there is a large amount of dust in the running unit no matter inside or outside the pipeline, and these dusts are accumulated on the inserting plate. Once the inserting plate moves, part of the dust will enter the gap between the inserting plate and the sealing gasket, causing jamming astringent;
[0006] The second is that when the unit is running, there is a pressure difference between the two ends of the door, and there is a loading force parallel to the direction of the incoming flow, which increases the frictional resistance between the door and the gasket, causing jamming;
[0007] In a word, if the plug-in board is jammed, it will cause the control system instructions to be unable to be implemented, which will seriously affect the safe and economical operation of the unit.

Method used

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  • Anti-jamming pneumatic slide plate gate of pulverized coal pipeline and work method based on anti-jamming pneumatic slide plate gate
  • Anti-jamming pneumatic slide plate gate of pulverized coal pipeline and work method based on anti-jamming pneumatic slide plate gate
  • Anti-jamming pneumatic slide plate gate of pulverized coal pipeline and work method based on anti-jamming pneumatic slide plate gate

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Embodiment Construction

[0063] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0064] Such as Figure 1-4 As shown, a pulverized coal pipeline pneumatic sliding door that can prevent jamming includes:

[0065] Rectangular frame body 1, described rectangular frame body 1 is connected with pulverized coal pipeline by fastening bolt 2; In the middle of rectangular frame body 1, there is an inserting plate 4 capable of blocking the airflow of pulverized coal pipeline,

[0066] The rectangular frame body 1 includes: a front side frame, a rear side frame, a left side frame and a right side frame; the front side frame is parallel to the rear side frame, and the left side frame is parallel to the right side frame, wherein the left side frame and the right side frame are parallel The right side frame is provided with sliding tracks, the front side frame is provided with a right-angled triangle notch, and the rear side frame is provided wi...

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Abstract

The invention discloses an anti-jamming pneumatic slide plate gate of a pulverized coal pipeline and a work method based on the anti-jamming pneumatic slide plate gate. The anti-jamming pneumatic slide plate gate comprises a rectangular frame which is connected with the pulverized coal pipeline through fixing bolts, wherein a slide plate which can block airstreams in the pulverized coal pipeline is arranged in the center of the rectangular frame; the rectangular frame comprises a front side frame, a rear side frame, a left side frame and a right side frame; the left and right side frames are separately provided with a sliding rail, so that the slide plate can slide along the sliding rails of the rectangular frame; the slide plate is connected with a slide plate draft device; asymmetrical chevron air passages are arranged above the rear side frame; symmetrical chevron air passages are arranged below the rear side frame; the air passages are all connected with compressed air pipelines; the compressed air pipelines are connected with a compressed air source; electromagnetic valves are arranged on the compressed air pipelines; the electromagnetic valves are connected with compressed air control systems; and in processes of inserting the slide plate into the rectangular frame and pulling the slide plate out of the rectangular frame, dust accumulated on the upper part, the lower part, the front part and the rear part of the slide plate is cleaned through airstreams in the compressed air pipelines, so that the problem of jamming of the slide plate caused by large friction force of the dust is solved.

Description

technical field [0001] The invention relates to a pulverized coal pipeline pneumatic sliding door capable of preventing jamming and a working method thereof. Background technique [0002] Pneumatic sliding door is widely used in electric power, metallurgy, chemical industry, light industry and other industries. It is an ideal equipment for controlling large flow changes, frequent starts and quick cut-offs. For power plant boilers, the pneumatic sliding door of the pulverized coal pipeline can adjust the primary air volume and primary powder volume in a timely manner, reasonably organize the aerodynamic field in the furnace, and make the combustion in the furnace reach the optimal state. is of great significance. [0003] The pneumatic sliding door is composed of a cylinder, a frame, a sliding board, a control system, an indicating device, an electromagnetic valve, and fastening bolts. Among them, the control system is the center, which receives the instructions of the oper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/12F16K27/04F16K3/30
CPCF16K3/30F16K27/044F16K31/12
Inventor 姜波刘福国刘景龙杜晓光侯本杰
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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