CN219943907U - Ash-cleaning rake and ash-cleaning device - Google Patents
Ash-cleaning rake and ash-cleaning device Download PDFInfo
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- CN219943907U CN219943907U CN202320618359.XU CN202320618359U CN219943907U CN 219943907 U CN219943907 U CN 219943907U CN 202320618359 U CN202320618359 U CN 202320618359U CN 219943907 U CN219943907 U CN 219943907U
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- air inlet
- ash
- inlet branch
- rake
- ash removal
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- 238000004140 cleaning Methods 0.000 title abstract description 20
- 239000003054 catalyst Substances 0.000 claims abstract description 33
- 239000007921 spray Substances 0.000 claims abstract description 24
- 239000011148 porous material Substances 0.000 claims abstract description 21
- 238000005507 spraying Methods 0.000 claims abstract description 6
- 239000000428 dust Substances 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 10
- 230000000903 blocking effect Effects 0.000 abstract description 6
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model discloses an ash removing rake and an ash removing device in the technical field of catalyst pore canal blocking prevention, wherein the ash removing rake comprises an air inlet main pipeline, air inlet branch pipelines and ash removing spray heads which are sequentially communicated from top to bottom, a plurality of air inlet branch pipelines are arranged in parallel, an included angle is formed between each air inlet branch pipeline and the air inlet main pipeline, and each air inlet branch pipeline is connected with a plurality of ash removing spray heads, so that the spraying range of air flow can comprehensively cover each catalyst pore canal in a rake ash remover, synchronous cleaning and uniform ash removing can be carried out on the catalyst pore canals, and the ash removing efficiency and ash removing effect are greatly improved; has very positive significance in preventing the blocking of the catalyst structure, reducing the resistance of the SCR denitration system and ensuring the normal use function of the catalyst.
Description
Technical Field
The utility model relates to the technical field of catalyst pore canal blocking prevention, in particular to an ash removal rake and an ash removal device.
Background
The application of the ash removal rake in the SCR denitration system with large dust content in the cement industry is very wide, and the ash removal rake is key equipment for preventing powder from accumulating in the catalyst pore canal and ensuring that the catalyst pore canal is not blocked after solid dust particles of a grid catalyst layer in the SCR denitration tower enter the catalyst pore canal. The conventional ash cleaning rake consists of an air inlet pipeline, an ash cleaning rake body, an ash cleaning spray head and other structures, and the ash cleaning effect of the ash cleaning spray head device is determined to a great extent by the structure of the ash cleaning spray head device, so that the blocking degree of powder in a catalyst grid structure is affected.
According to the current research results, most of the catalyst adopts a point type ash removing structure, the ash removing range is limited, the ash removing is uneven, and the like, and even the ash removing effect is poor, the catalyst pore canal is seriously blocked, and the normal use performance of the catalyst is affected.
Therefore, the ash removal effect of the ash removal rake device is improved by changing the structural form of the ash removal spray head device, and the ash removal spray head device has very positive significance in preventing the blockage of the catalyst structure, reducing the resistance of the SCR denitration system and ensuring the normal use function of the catalyst.
Therefore, there is an urgent need to provide an ash removal rake to solve the above technical problems.
Disclosure of Invention
The utility model aims to provide an ash removing rake and an ash removing device, wherein an ash removing surface of the ash removing rake can cover all catalyst pore channels, and ash removing effect is improved.
In order to achieve the above object, according to a first aspect of the present utility model, there is provided an ash removal rake, which includes an air inlet main pipe, an air inlet branch pipe and ash removal nozzles which are sequentially communicated from top to bottom, wherein a plurality of air inlet branch pipes are disposed in parallel to each other, an included angle is formed between each air inlet branch pipe and the air inlet main pipe, and each air inlet branch pipe is connected with a plurality of ash removal nozzles, so that a spraying range of air flow can cover all of each catalyst pore canal in the rake ash remover.
Preferably, the air inlet branch pipeline is perpendicular to the air inlet main pipeline.
Preferably, the air inlet branch pipeline and the air inlet main pipeline are connected through a connecting pipe.
Preferably, the connecting pipe is perpendicular to the inlet branch pipe and the inlet main pipe.
Preferably, two air outlet holes are symmetrically arranged at the lower end of each ash cleaning spray head, and the connecting line of the two air outlet holes is perpendicular to the air inlet branch pipeline.
Preferably, the ash removal shower nozzle sets up to W shape to two the apopore sets up respectively in the lower extreme closed angle department of W shape.
The second aspect provides an ash removal device, which comprises a blower device and the ash removal rake, wherein one end of the main air inlet pipeline is connected with an air outlet of the blower device.
According to the technical scheme, when the ash removal rake is used for cleaning the catalyst pore canal, air flows through the main air inlet pipeline, the branch air inlet pipeline and the ash removal spray head in sequence, and finally is sprayed out from the air outlet hole of the ash removal spray head. The spraying range of the sprayed gas can fully cover all catalyst pore channels, synchronous cleaning and uniform ash removal can be carried out on the catalyst pore channels, and the ash removal efficiency and the ash removal effect are greatly improved; has very positive significance in preventing the blocking of the catalyst structure, reducing the resistance of the SCR denitration system and ensuring the normal use function of the catalyst.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:
FIG. 1 is a schematic diagram of an embodiment of an ash removal apparatus of the present utility model;
FIG. 2 is a schematic diagram of the structure of the ash removal nozzle, the connecting pipe and the air inlet branch pipe in the utility model;
fig. 3 is a right-side view schematic diagram of fig. 1.
Description of the reference numerals
1-an air inlet main pipeline, 2-an air inlet branch pipeline, 3-an ash removal spray head, 4-a connecting pipe, 5-an air outlet hole and 6-a blast device.
Detailed Description
The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.
The first aspect of the utility model provides an ash removal rake, which comprises an air inlet main pipeline 1, air inlet branch pipelines 2 and ash removal spray heads 3 which are sequentially communicated from top to bottom, wherein a plurality of air inlet branch pipelines 2 are arranged in parallel, an included angle is formed between each air inlet branch pipeline 2 and each air inlet main pipeline 1, and each air inlet branch pipeline 2 is connected with a plurality of ash removal spray heads 3, so that the spraying range of air flow can comprehensively cover each catalyst pore canal in the rake ash remover.
When the ash removal rake is used for cleaning a catalyst pore canal, air flows sequentially through the main air inlet pipeline 1, the branch air inlet pipeline 2 and the ash removal spray head 3, and finally is sprayed out from the air outlet hole 5 of the ash removal spray head 3. The spraying range of the sprayed gas can fully cover all catalyst pore channels, synchronous cleaning and uniform ash removal can be carried out on the catalyst pore channels, and the ash removal efficiency and ash removal effect are greatly improved; has very positive significance in preventing the blocking of the catalyst structure, reducing the resistance of the SCR denitration system and ensuring the normal use function of the catalyst.
In this embodiment, when the cleaning nozzle position needs to be adjusted, the main air inlet pipe 1 needs to be moved left and right, and then the main air inlet pipe 2 and the ash cleaning nozzle 3 are moved synchronously, so that the main air inlet pipe 1 is convenient for a worker to control the moving distance and direction of the main air inlet pipe 2 and the ash cleaning nozzle 3, and the main air inlet pipe 2 and the main air inlet pipe 1 are vertically arranged.
In this embodiment, inlet branch pipe 2 and inlet main pipe 1 are connected through connecting pipe 4, and the air current gets into connecting pipe 4 from inlet main pipe 1, gets into inlet branch pipe 2 via connecting pipe 4, and connecting pipe 4 plays the effect of switching, compares in directly laminating inlet main pipe 1 and inlet branch pipe 2 and connects, through connecting pipe 4 switching, and is convenient for connection not only, connects more stably moreover.
In the present embodiment, the connection pipe 4 is perpendicular to the inlet branch pipe 2 and the inlet main pipe 1.
In this embodiment, two air outlets 5 are symmetrically disposed at the lower end of each ash cleaning nozzle 3, and the connection line of the two air outlets 5 is perpendicular to the air inlet branch pipes 2, so that each air inlet branch pipe 2 has two air outlets 5. The diameter of the air outlet hole 5 is smaller, so that the supercharging effect can be achieved, and the penetration depth of the air ejected from the air outlet hole 5 can effectively penetrate through the catalyst pore canal.
In the present embodiment, the ash removal shower nozzle 3 is provided in a W shape, and two air outlet holes 5 are provided at the lower tip corners of the W shape, respectively. The gas from the air inlet branch pipeline 2 enters from the upper end of the ash removal spray head 3, namely enters the ash removal spray head 3 from the W-shaped upper opening, the entering gas flow can be split to two sides by the middle inverted V-shaped structure, then is converged to the air outlet 5 at the bottommost end under the action of the inclined walls at the two sides, and is pressurized through the air outlet 5 and then blown to the catalyst pore channel, so that the ash removal effect is achieved, and the catalyst is prevented from gathering in the pore channel.
The specific dimensional ratios of the components satisfy the following conditions: the diameter of the air inlet branch pipeline 2 is set to be D, the height H1 of the ash removing spray head 3, the width L1 of the air outlet holes 5 and the interval L2 between the two air outlet holes 5 of the same ash removing spray head 3;
the diameter D of the air inlet pipeline meets the following conditions: d=30 to 500mm;
the height H1 of the ash removal spray head 3 meets the following conditions: h1 = (0.6-1.2) D;
the width of the air outlet 5 satisfies: l1=0.3 to 5mm;
the interval L2 between two air outlet holes 5 of the same ash removal spray head 3 satisfies the following conditions: l2= (0.3-1.0) D.
A second aspect provides an ash removal device comprising a blower device 6 and the ash removal rake described above, wherein one end of the main inlet pipe 1 is connected to an air outlet of the blower device 6. The blower device 6 mainly provides wind power for the ash removing rake, blows air into the main air inlet pipeline 1, and finally ejects the air from the ash removing spray head 3.
The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present utility model within the scope of the technical concept of the present utility model, and all the simple modifications belong to the protection scope of the present utility model.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.
Claims (7)
1. The utility model provides a deashing harrow, its characterized in that, deashing harrow includes inlet main pipe (1), inlet branch pipeline (2) and deashing shower nozzle (3) that from top to bottom communicate in proper order and set up, inlet branch pipeline (2) are provided with a plurality ofly that are parallel to each other, inlet branch pipeline (2) with there is the contained angle between inlet main pipe (1), every be connected with a plurality of deashing shower nozzles (3) on inlet branch pipeline (2) to make the range of spraying of air current can all-round cover every catalyst pore in the rake deashing ware.
2. A rake according to claim 1, characterized in that the inlet branch duct (2) is arranged perpendicular to the inlet main duct (1).
3. A rake according to claim 2, characterized in that the inlet branch duct (2) and the inlet main duct (1) are connected by a connecting duct (4).
4. A rake according to claim 3, characterized in that the connection pipe (4) is perpendicular to the inlet branch pipe (2) and inlet main pipe (1).
5. A dust removing rake according to claim 1, characterized in that two air outlet holes (5) are symmetrically arranged at the lower end of each dust removing spray head (3), and the connecting line of the two air outlet holes (5) is perpendicular to the air inlet branch pipeline (2).
6. The ash removal rake according to claim 5, characterized in that the ash removal spray head (3) is provided in a W shape, and the two air outlet holes (5) are respectively provided at the sharp corners of the lower end of the W shape.
7. An ash removal device, characterized in that the ash removal device comprises a blowing device (6) and an ash removal rake according to any one of claims 1-5, wherein one end of the main air inlet pipe (1) is connected with an air outlet of the blowing device (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320618359.XU CN219943907U (en) | 2023-03-24 | 2023-03-24 | Ash-cleaning rake and ash-cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320618359.XU CN219943907U (en) | 2023-03-24 | 2023-03-24 | Ash-cleaning rake and ash-cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219943907U true CN219943907U (en) | 2023-11-03 |
Family
ID=88544782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320618359.XU Active CN219943907U (en) | 2023-03-24 | 2023-03-24 | Ash-cleaning rake and ash-cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219943907U (en) |
-
2023
- 2023-03-24 CN CN202320618359.XU patent/CN219943907U/en active Active
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