Air knife module capable of preventing interior of slag bin from being blocked

By installing an air knife module in the slag bin and using compressed air to form an air wall to isolate the inner wall of the slag bin, the slag bin blockage problem was solved, the smooth discharge of slag and the prevention of ground pollution were achieved, and the transformation cost was reduced.

CN223470216UActive Publication Date: 2025-10-24DATANG HUANGDAO POWER GENERATION
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Patent Information

Application Number
CN202423280264.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-10-24
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

Due to the quality of coal, the viscosity of boiler slag is high, which causes the ash to accumulate and compact at the bottom of the slag bin cone, resulting in poor slag unloading. In severe cases, the slag discharge door cannot be closed, and the slag needs to be discharged to the ground for cleaning, causing ground pollution. Existing transformation plans require large investments or have poor results.

Method used

The air knife module is used, including an air compressor, an air storage tank, pipelines, a coarse filter, a fine filter, an inlet valve, an air knife and a high-pressure pulse component. Compressed air forms a circular wind wall to isolate the inner wall of the slag bin to prevent blockage.

Benefits of technology

The separation of slag from the inner wall of the slag bin is achieved, which ensures the smooth discharge of slag, avoids ground pollution and reduces the transformation cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an air knife module for preventing blockage in a slag bin. Various schemes such as transformation of a dry deslagging system, a mode of brushing nano paint on the inner wall and rapping, a mode of attaching a macromolecular sliding plate to the inner wall, a mode of adding a set of stirring device in a slag bin and the like are negated due to high investment cost or poor use effect and the like. The device comprises an air compressor and an air storage tank, an outlet of the air compressor is communicated with the air storage tank through a pipeline, and an outlet of the air storage tank is communicated with a high-pressure pulse assembly installed on a slag bin cone part through a compressed air mother pipe. The high-voltage pulse components are divided into an upper layer, a middle layer and a lower layer and are uniformly distributed along the periphery of the slag bin; the high-voltage pulse assembly on each layer comprises at least three sets of air knife devices, and each set of air knife devices are communicated with the air inlet ring pipe. The slag bin is used for preventing the interior of the slag bin from being blocked.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of wind knife module for preventing internal slag bin blockage. BACKGROUND

[0002] Due to coal quality, the viscosity of boiler slag is large, and the ash slag is accumulated and hardened at the bottom of the slag bin cone, which leads to poor slag discharge when unloading, and in severe cases, the slag discharge door cannot discharge slag, resulting in the inability to close the slag discharge door, which requires slag to be discharged to the ground and transported to the slag transport vehicle for cleaning using a forklift, causing ground pollution. This problem has lasted for many years.

[0003] Various solutions such as dry slag discharge system modification, internal wall brushing with nano coating and vibration, high molecular sliding plate attached to the internal wall, and a set of stirring device inside the slag bin have been rejected due to high investment costs or poor usage results, and there is an urgent need for a suitable solution to completely solve the above problems. INVENTION CONTENTS

[0004] The utility model is to solve the above-mentioned technical problems, and provides a kind of wind knife module for preventing internal slag bin blockage.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A kind of wind knife module for preventing internal slag bin blockage, its composition includes: air compressor and gas storage tank, the outlet of the air compressor is communicated with the gas storage tank by pipeline, the outlet of the gas storage tank is communicated with high pressure pulse assembly installed in the cone part of slag bin by compressed air main pipe;

[0007] The high pressure pulse assembly is divided into three layers along the slag bin periphery.

[0008] Each layer of high pressure pulse assembly includes at least three groups of air knife, and each group of air knife is communicated with air inlet ring pipe.

[0009] The wind knife module for preventing internal slag bin blockage includes air knife and branch pipe, the branch pipe is installed with air knife at the end, and the branch pipe is installed with electromagnetic valve and manual valve.

[0010] The wind knife module for preventing internal slag bin blockage is installed with coarse filter, precision filter and inlet valve between the air compressor and the gas storage tank.

[0011] The wind knife module for preventing internal slag bin blockage is installed with outlet valve on the compressed air main pipe of the outlet of the gas storage tank. ADVANTAGEOUS EFFECTS

[0012] 1. The utility model discloses a high pressure pulse assembly is installed along the even distribution of three layers around the slag bin in the conical part of slag bin, and the circular wind wall is formed on the inner wall of slag bin by compressed air through air knife, which separates slag and inner wall, and realizes the purpose of smooth slag.

[0013] 2. The utility model discloses that the pipeline between air compressor and gas storage tank is equipped with coarse filter, precision filter and inlet valve, can carry out effective filtration to the gas that enters into gas storage tank, prevents dust-containing gas from entering into gas storage tank, and then enters into air knife and causes air knife to be blocked.

[0014] 3. The utility model discloses a high pressure pulse assembly is installed along the even distribution of three layers around the slag bin in the conical part of slag bin, which can realize the overall isolation of the conical part of slag bin, and guarantee the separation effect of slag and inner wall. DRAWINGS

[0015] ATTACH Figure 1 It is the structure schematic drawing of the utility model;

[0016] ATTACH Figure 2 It is the structure schematic drawing of slag bin and 4 groups of air knife ware;

[0017] ATTACH Figure 3 It is the structure schematic drawing of slag bin and 8 groups of air knife ware;

[0018] ATTACH Figure 4 It is another structure schematic drawing of slag bin and 4 groups of air knife ware;

[0019] In the drawing: 1, slag bin;2, compressed air main pipe;3, outlet valve;4, gas storage tank;5, precision filter;6, coarse filter;7, inlet valve;8, air compressor;9, air knife;10, electromagnetic valve;11, hand valve;12, branch pipe;13, air inlet ring pipe;14, air knife ware. SPECIFIC IMPLEMENTATION

[0020] Referring to Figure 1 A kind of air knife module for preventing slag bin internal blockage, its composition includes: air compressor 8 and gas storage tank 4, the outlet of the air compressor is communicated with the gas storage tank by pipeline, coarse filter 6, precision filter 5 and inlet valve 7 are installed on the pipeline between the air compressor and the gas storage tank, which can effectively filter the gas entering the gas storage tank, prevent dust-containing gas from entering the gas storage tank, and then enter the air knife, causing the air knife to be blocked, the outlet of the gas storage tank is communicated with the high pressure pulse assembly installed in the conical part of slag bin 1 by compressed air main pipe 2;

[0021] The high-pressure pulse assembly is divided into three layers, which are evenly distributed along the circumference of the slag bin. Compressed air is used to form a circular air wall on the inner wall of the slag bin by air knives to separate the slag and the inner wall, achieving smooth slagging. In the conical part of the slag bin, high-pressure pulse assemblies are installed in three layers along the circumference of the slag bin, which can form a complete isolation wall in the conical part of the slag bin, ensuring the separation effect of the slag and the inner wall.

[0022] Each layer of high-pressure pulse assembly includes at least three groups of air knife devices 14, and each group of air knife devices is connected with the air inlet ring pipe 13.

[0023] The air knife module prevents the internal slag bin from being blocked. The air knife device includes an air knife 9 and a branch pipe 12. The branch pipe is equipped with an electromagnetic valve 10 and a manual valve 11 at the end.

[0024] The air knife module prevents the internal slag bin from being blocked. An outlet valve 3 is installed on the compressed air main pipe at the outlet of the gas storage tank.

[0025] Working principle: After the air compressor compresses the compressed air, the compressed air is coarsely filtered by a coarse filter and then precisely filtered by a precision filter. The filtered compressed air is stored in the gas storage tank. An outlet valve is installed on the compressed air main pipe at the outlet of the gas storage tank. The compressed air enters the air inlet ring pipe of each layer through the compressed air main pipe, and then enters each air knife device. High-pressure air is blown out by the air knife on the air knife device. The air knife is a mature product. This device only applies it here. Compressed air is used to form a circular air wall on the inner wall of the slag bin by air knives to separate the slag and the inner wall, achieving smooth slagging.

Claims

1. A wind knife module for preventing clogging of the interior of a slag pot, comprising: The air compressor and the air tank are characterized in that the outlet of the air compressor is communicated with the air tank through a pipeline, and the outlet of the air tank is communicated with a high-pressure pulse assembly installed on the conical part of the slag bin through a compressed air main pipeline. The high-pressure pulse assembly is divided into three layers, i.e., upper, middle and lower layers, and is evenly distributed around the slag bin. Each layer of the high-pressure pulse assembly comprises at least three groups of air knife devices, and each group of the air knife devices is communicated with an air inlet ring pipeline.

2. The air-knife die assembly of claim 1, wherein: The air knife device comprises an air knife and a branch pipeline, the end of the branch pipeline is provided with the air knife, and an electromagnetic valve and a manual valve are installed on the branch pipeline.

3. The wind knife module of claim 1, wherein: the wind knife module is configured to prevent clogging of the interior of the slag pot. A coarse filter, a precision filter and an inlet valve are installed on the pipeline between the air compressor and the air tank. ​ 4. The wind knife module of claim 1, wherein: An outlet valve is installed on the compressed air main pipeline of the outlet of the air tank.