CN216079849U - Ash cleaning device for high-temperature environment and ash hopper with same - Google Patents
Ash cleaning device for high-temperature environment and ash hopper with same Download PDFInfo
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- CN216079849U CN216079849U CN202122084143.3U CN202122084143U CN216079849U CN 216079849 U CN216079849 U CN 216079849U CN 202122084143 U CN202122084143 U CN 202122084143U CN 216079849 U CN216079849 U CN 216079849U
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Abstract
The utility model discloses a dust cleaning device for a high-temperature environment, which comprises compressed gas supply equipment and a compressed gas conveying injection pipe, wherein the compressed gas conveying injection pipe comprises a gas pipe and an injection pipe, the gas inlet end of the gas pipe is connected with the compressed gas supply equipment, the dust cleaning device also comprises an air-cooling heat dissipation assembly for cooling the injection pipe, the air-cooling heat dissipation assembly comprises a fan and a sleeve, the sleeve is sleeved on the injection pipe, and the fan is used for supplying cold air to the sleeve. The ash removal device can be suitable for high-temperature environments with the temperature of more than 400 ℃, has simple structure, stable performance and low cost, and can better ensure the ash removal effect in the high-temperature environment. The utility model also discloses an ash bucket with the ash cleaning device, which comprises an ash bucket body and the ash cleaning device, wherein the ash bucket can be used as a lower ash bucket of a front-end flue of the waste heat boiler, and has the advantages of good ash discharging and cleaning effects, stable operation and long service life.
Description
Technical Field
The utility model belongs to the technical field of ash removal devices, and particularly relates to an ash removal device for a high-temperature environment and an ash hopper with the same.
Background
The common ash cleaning device mainly utilizes the principle of vibration conduction to vibrate and dredge the deposited ash in the ash hopper, and is mainly divided into two types: air rapping type and mechanical rapping type. The air vibration ash cleaning device adopts a compressed air injection mode, generates vibration through momentum transfer to break up and dredge accumulated ash in an ash hopper or granular production materials in the hopper, and prevents the blockage of the ash hopper or the hopper, unsmooth ash discharge and discharging caused by adhesion and bridging in the hopper. The gas rapping dust cleaning device is usually applied to the blanking of a material storage tank, the ash discharge of an ash hopper under a bag-type dust remover and the like, belongs to a normal-temperature environment, and the blowing pipeline of the existing dust cleaning device is generally made of Q235 common carbon structural steel, has the temperature resistance range of 0-350 ℃, meets the working requirement, and is not suitable for a higher-temperature operation environment. However, the practical working conditions of some high-temperature equipment or high-temperature environment have higher requirements on the operation tolerance temperature of the ash removal device, for example, the lower ash bucket of the front end flue of the waste heat boiler is positioned at the front end of the boiler and is close to a fuel combustion area, the internal temperature of the lower ash bucket is more than 400 ℃, and the internal temperature of some areas even reaches the high temperature of more than 600 ℃.
The basic principle of the waste heat boiler is that the flue gas on the outer side flows to exchange heat with steam and water in a heating surface of the boiler, the flue gas is generated by burning fuel and carries various particulate matters, and when the flue gas flows through the heating surface, the particulate matters are gradually settled due to partial resistance of the heating surface, so that an ash bucket is arranged at the lower part of the boiler and used for unloading ash. In the using process, the problems of ash accumulation adhesion and blockage caused by bridging can occur in the ash hopper (bridging means that the ash in the ash hopper is compacted to form a solid at the outlet of the ash hopper due to the fact that the ash is increased in the lower ash amount or the ash is hardened due to the increased viscosity, so that the lower ash opening is blocked, the ash cannot be discharged from the lower ash opening, and the ash is gradually piled up in the ash hopper.)
In order to meet the requirement of high-temperature (above 400 ℃) operation, the existing ash removal device needs to be improved, if the blowing pipeline is made of a material with higher temperature resistance, when the blowing pipeline is connected with gas conveying pipelines made of different materials, the connection part is easy to be damaged no matter welding or screwing, and the non-integrally formed pipeline is not suitable for the high-temperature environment; if the compressed gas pipeline is completely replaced by a material with higher temperature tolerance, the cost is too high; if the heat insulation coating is laid on the blowing pipe or the heat insulation tile is installed, regular inspection and maintenance are needed, and the use is inconvenient. Therefore, on the premise of keeping lower cost, the heat resistance of the spray pipe in a high-temperature environment is improved, and the problem that the damage of the pipeline becomes an urgent need to be solved because the spray pipe causes metal overheating due to overtemperature is avoided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of overcoming the defects of the prior art and provide the ash removal device for the high-temperature environment and the ash bucket with the ash removal device, wherein the ash removal device can ensure the stability and low cost of the connection of the original pipeline and avoid the over-temperature and overheating of a blowing pipeline.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides an ash removal device for high temperature environment, includes compressed gas provides equipment, compressed gas carries the jetting pipe, the compressed gas carries the jetting pipe to include gas-supply pipe and jetting pipe, the inlet end of gas-supply pipe with compressed gas provides equipment and links to each other, ash removal device still including be used for right the air-cooled radiator unit of jetting pipe cooling, air-cooled radiator unit includes fan and sleeve pipe, the sleeve pipe cover is located on the jetting pipe, the fan is used for the sleeve pipe provides cold wind.
Preferably, the fan is an axial flow fan, a centrifugal fan or an oblique flow fan.
In the above ash removal device for high-temperature environment, preferably, the axial flow fan and the sleeve are communicated through an air supply pipe.
In the above ash removal device for a high-temperature environment, preferably, the sleeve is coaxial with the blowing pipe, and a gap is left between the sleeve and the blowing pipe.
Preferably, the compressed gas supply device is a compressed gas storage tank, the gas inlet end of the gas pipe is connected with the compressed gas storage tank, and the gas pipe is provided with an electromagnetic valve.
In the above ash removal device for high-temperature environment, preferably, the compressed gas provided by the compressed gas supply device is compressed air.
An ash bucket with an ash removal device comprises an ash bucket body and the ash removal device.
In the ash hopper with the ash removal device, preferably, the sleeve penetrates through the wall of the ash hopper and extends into the ash hopper body.
In the ash bucket with the ash removal device, preferably, the plurality of sleeves and the corresponding injection pipes are uniformly arranged on the circumferential side wall surface of the ash bucket body.
In the above ash bucket with an ash removal device, preferably, the two adjacent blowing pipes are connected with the same compressed gas supply device through the gas pipe.
In the ash hopper with the ash removing device, preferably, a plurality of the sleeves are communicated with the same fan.
In the ash bucket with the ash removal device, another preferable scheme is that the sleeve and the corresponding blowing pipe are mounted at the opening end of the ash bucket body through a fixing piece or a fixing bracket.
Compared with the prior art, the utility model has the advantages that:
the ash removal device for the high-temperature environment comprises an air-cooled heat dissipation assembly for cooling an injection pipe, wherein the air-cooled heat dissipation assembly comprises a fan and a sleeve, the sleeve is sleeved on the injection pipe, and the fan is used for providing cold air for the sleeve. Because the sleeve pipe is overlapped in the periphery of the injection pipe, external cold air is sucked through the external fan, and the cold air is continuously conveyed to the sleeve pipe, so that the injection pipe is continuously and fully cooled, can stably operate, and is prevented from being damaged and falling off due to overheating. The ash removal device can be suitable for high-temperature environments with the temperature of more than 400 ℃, is simple in structure, stable in performance, low in cost and convenient to maintain, and can better guarantee the ash removal effect in the high-temperature environments.
The ash bucket with the ash removal device comprises the ash bucket body and the ash removal device, and the ash bucket is provided with the ash removal device with the air-cooled heat dissipation assembly, so that the blowing pipe can be continuously and fully cooled, the stable operation can be realized, and the damage and the falling off caused by overheating can be avoided. The ash bucket can be used as a lower ash bucket of a flue at the front end of the waste heat boiler, and has the advantages of good ash discharging and cleaning effects, stable operation and long service life.
Drawings
FIG. 1 is a schematic view of the construction of an ash hopper with an ash removal device according to the present invention.
Illustration of the drawings:
1. a compressed gas storage tank; 2. a compressed gas delivery blowpipe; 21. a gas delivery pipe; 22. a blowing pipe; 23. an electromagnetic valve; 31. A fan; 32. a sleeve; 33. an air supply pipe; 4. an ash bucket body.
Detailed Description
The present invention will be described in further detail with reference to the following specific embodiments and the accompanying drawings.
As shown in fig. 1, in a specific application example, the ash removal device for a high-temperature environment of the present invention includes a compressed gas supply device, a compressed gas delivery injection pipe 2, where the compressed gas delivery injection pipe 2 includes a gas pipe 21 and an injection pipe 22, a gas inlet end of the gas pipe 21 is connected to the compressed gas supply device, the ash removal device further includes an air-cooling heat dissipation assembly for cooling the injection pipe 22, the air-cooling heat dissipation assembly includes a fan 31 and a sleeve 32, the sleeve 32 is sleeved on the injection pipe 22, and the fan 31 is used for providing cold air to the sleeve 32.
When the device works, the compressed gas supply equipment is started, compressed gas with certain pressure is sprayed into high-temperature equipment to be cleaned by the spraying and blowing pipe 22 sleeved with the sleeve 32 through the gas conveying pipe 21, and the dust deposition structure is broken through impacting and rapping the dust in the equipment, so that the dust is loosened to be discharged smoothly. Because the sleeve 32 is sleeved on the periphery of the injection pipe 22, external cold air is sucked through the external fan 31 and continuously conveyed to the sleeve 32, the injection pipe 22 is continuously blown and fully cooled, and damage and falling caused by overheating are avoided. The ash removal device can be suitable for the high-temperature environment with the temperature of more than 400 ℃, has simple structure, stable performance and low cost, and has long fatigue-resistant period while ensuring better ash removal effect under the high-temperature environment.
In this embodiment, the fan 31 is an axial flow fan, and the axial flow fan is communicated with the casing 32 through an air supply pipe 33.
Of course in other embodiments, a centrifugal fan or a diagonal flow fan may be used. According to the actual situation, if there is no proper installation space for the fan near the injection pipe 22, long pipelines are required to supply air, centrifugal or diagonal fans can be selected, the air pressure of the air discharged by the two fans is high, and the influence of the pipeline loss along the way on the conveying efficiency is small. If the number of the injection pipes 22 is large (considering the assembly cost, only one fan is arranged), and an installation space is arranged nearby, an axial flow type or diagonal flow type fan is selected, the air supply amount is large, and the influence of multiple nozzles on the flow distribution is small. The performance of the diagonal flow fan is between that of a centrifugal fan and that of an axial flow fan, and the performance is selected according to actual requirements, so that the applicability is higher.
In this embodiment, the compressed gas supply device is a compressed gas storage tank 1, the gas inlet end of the gas pipe 21 is connected to the compressed gas storage tank 1, and the gas pipe 21 is provided with an electromagnetic valve 23.
In this embodiment, the compressed gas in the compressed gas storage tank 1 is compressed air. The compressed air is convenient, harmless, safe and inexhaustible to convey, and the cost is saved. In other embodiments, the compressed gas may also be an inert gas.
Fig. 1 shows an embodiment of the ash hopper with an ash removing device according to the present invention, which includes an ash hopper body 4 and the ash removing device, and since the ash hopper is equipped with the ash removing device for high temperature environment, the ash hopper also has the functions of introducing cold air to continuously purge and fully cool the blowing pipe 22, and the blowing pipe 22 can be prevented from being damaged and falling off due to overheating. The ash bucket of this embodiment is used as the lower ash bucket of waste heat boiler front end flue, and it is effectual to unload ash, deashing, and the operation is stable, and long service life.
In this embodiment, the sleeve 32 penetrates through the ash bucket wall and extends into the ash bucket body 4, and the corresponding blowing pipe 22 can extend into the ash bucket body 4 through the sleeve 32 to perform blowing operation.
In this embodiment, the four sleeves 32 and the corresponding blowing pipes 22 are uniformly arranged on the circumferential side wall surface of the ash bucket body 4.
In this embodiment, two adjacent blowing pipes 22 are connected to the same compressed gas storage tank 1 through the gas pipe 21, and a larger number of blowing pipes 22 can be supplied at the same time on the premise that the gas supply amount of a single compressed gas storage tank 1 is sufficient.
In this embodiment, the plurality of casings 32 are communicated with the same fan 31 through the blast pipe 33.
Because the general size (caliber, length) of the blowing pipe 22 is smaller, which means that the cooling area is small, the requirements on the air volume and the air pressure of the required cooling air are not high, and the continuity of the supply of the cooling air is ensured, for example, the fan can be connected to the embodiment alone, and in other embodiments, the air can be induced according to the actual arrangement condition of other fans in a production workshop, the air allowance and the air temperature, as long as the cooling requirements of the blowing pipe 22 can be met.
Depending on the actual situation, in other embodiments, the sleeve 32 and the corresponding blowing tube 22 may be mounted at the open end of the hopper body 4 by a fixing member or a fixing bracket, and blown downward from the hopper opening.
The above are only preferred embodiments of the present invention, and the scope of protection of the present invention is not limited to the above examples, and the technical features related to the above described embodiments of the present invention may be combined with each other as long as they do not conflict with each other, and all technical solutions belonging to the idea of the present invention belong to the scope of protection of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may be made by those skilled in the art without departing from the principle of the utility model.
Claims (10)
1. The ash removal device for the high-temperature environment comprises compressed gas supply equipment and a compressed gas conveying injection pipe (2), wherein the compressed gas conveying injection pipe (2) comprises a gas conveying pipe (21) and an injection pipe (22), and the gas inlet end of the gas conveying pipe (21) is connected with the compressed gas supply equipment.
2. The ash removal device for high temperature environment of claim 1, wherein: the fan (31) is an axial flow fan, a centrifugal fan or an oblique flow fan.
3. The ash removal device for high temperature environment of claim 2, wherein: the compressed gas supply equipment is a compressed gas storage tank (1), the gas inlet end of the gas pipe (21) is connected with the compressed gas storage tank (1), and the gas pipe (21) is provided with an electromagnetic valve (23).
4. The ash removal device for high-temperature environment according to any one of claims 1 to 3, characterized in that: the compressed gas provided by the compressed gas providing device is compressed air.
5. The utility model provides an ash bucket with ash removal device, includes ash bucket body (4) and ash removal device, its characterized in that: the ash removal device for the high-temperature environment is as claimed in any one of claims 1 to 4.
6. The ash hopper with an ash removal device of claim 5, wherein: the sleeve penetrates through the ash bucket wall and extends into the ash bucket body (4).
7. The ash hopper with an ash removal device of claim 6, wherein: the plurality of sleeves (32) and the corresponding injection pipes (22) are uniformly arranged on the circumferential side wall surface of the ash bucket body (4).
8. The ash hopper with an ash removal device of claim 7, wherein: the two adjacent blowing pipes (22) are connected with the same compressed gas supply device through the gas conveying pipe (21).
9. The ash hopper with an ash removal device of claim 7, wherein: the plurality of sleeves (32) are communicated with the same fan (31).
10. The ash hopper with an ash removal device of claim 5, wherein: the sleeve (32) and the corresponding injection pipe (22) are arranged at the opening end of the ash bucket body (4) through a fixing piece or a fixing bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122084143.3U CN216079849U (en) | 2021-08-31 | 2021-08-31 | Ash cleaning device for high-temperature environment and ash hopper with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122084143.3U CN216079849U (en) | 2021-08-31 | 2021-08-31 | Ash cleaning device for high-temperature environment and ash hopper with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216079849U true CN216079849U (en) | 2022-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122084143.3U Active CN216079849U (en) | 2021-08-31 | 2021-08-31 | Ash cleaning device for high-temperature environment and ash hopper with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216079849U (en) |
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2021
- 2021-08-31 CN CN202122084143.3U patent/CN216079849U/en active Active
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