CN212091701U - SCR denitration catalyst module device with flow equalization anti-abrasion layer - Google Patents
SCR denitration catalyst module device with flow equalization anti-abrasion layer Download PDFInfo
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- CN212091701U CN212091701U CN202020505549.7U CN202020505549U CN212091701U CN 212091701 U CN212091701 U CN 212091701U CN 202020505549 U CN202020505549 U CN 202020505549U CN 212091701 U CN212091701 U CN 212091701U
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Abstract
The utility model provides a be equipped with SCR denitration catalyst module device of wearing layer that flow equalizes, includes catalyst frame, catalyst layer, supporting reinforcement, the wearing layer that flow equalizes, and wherein the catalyst layer is pieced together by a plurality of catalyst activity monomers, and catalyst activity monomer evenly arranges in the catalyst frame, and the supporting reinforcement is used for supporting the catalyst layer or the wearing layer that flow equalizes, and the wearing layer that flow equalizes is established in the catalyst layer top. The device of the utility model can effectively prevent the active monomer of the denitration catalyst from being worn by the dust-containing smoke, prolong the service life of the active component of the catalyst and ensure the long-period stable operation of the denitration system; meanwhile, during boiler shutdown maintenance, the abrasion-proof layer monomer which is seriously abraded can be replaced, so that expensive catalyst is prevented from being integrally replaced, and the operating cost is reduced.
Description
Technical Field
The utility model relates to a technical field is handled to the flue gas, concretely relates to be equipped with SCR denitration catalyst module device of abrasionproof layer that flow equalizes.
Background
With the gradual implementation of the national environmental protection policy, most of domestic coal-fired boilers are subjected to denitration modification. The emission index of nitrogen oxides is becoming more and more strict, and in order to meet lower emission indexes, the ultra-low emission is basically realized by adopting an SCR denitration process, and the core of the SCR denitration process lies in a catalyst. The catalyst is easily abraded by high-dust smoke in the using process, and the designed service life of the catalyst cannot be reached. The use unit often has to replace the catalyst in advance because of the serious reduction of the denitration efficiency of the catalyst, and unnecessary economic loss is brought to the use unit. How to prolong the service life of the catalyst and ensure the denitration efficiency of the catalyst is a problem which needs to be solved urgently by an SCR denitration system at the present stage.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the problem of solve aforementioned problem and provide an SCR denitration catalyst module device who is equipped with wearing layer that flow equalizes, life that can effectual extension denitration catalyst system reduces the working costs of system, improves the economic benefits of system.
The technical scheme of the utility model is that: the utility model provides a be equipped with SCR denitration catalyst module device of wearing layer that flow equalizes, includes catalyst frame, catalyst layer, supporting reinforcement, the wearing layer that flow equalizes, and wherein the catalyst layer is pieced together by a plurality of catalyst activity monomers, and catalyst activity monomer evenly arranges in the catalyst frame, and the supporting reinforcement is used for supporting the catalyst layer or the wearing layer that flow equalizes, and the wearing layer that flow equalizes is established in the catalyst layer top.
Furthermore, the cross-sectional dimension of the catalyst active monomer is 150 x 150mm, the height of the catalyst active monomer is customized according to actual needs, the catalyst active monomer is filled with a high-temperature sealing filling material, and the sealing filling material is a high-temperature resistant material, such as ceramic fiber cotton.
Furthermore, the catalyst outer frame is formed by processing a steel plate with the thickness of 3-6mm, the specific size is set according to actual requirements, and the catalyst outer frame is rectangular, so that active monomers of the internal catalyst can be conveniently and orderly arranged.
Furthermore, the flow equalizing anti-abrasion layer is composed of a plurality of anti-abrasion layer monomers, the cross section size of each anti-abrasion layer monomer is the same as that of the catalyst active monomer, and therefore the catalyst layer and the aperture positions on the flow equalizing anti-abrasion layer can be in one-to-one correspondence.
Furthermore, the supporting and reinforcing part is formed by processing a metal plate, the metal plate is arranged in a criss-cross mode to form a grid shape, a steel wire mesh can be laid on the grid, supporting force can be conveniently provided for the catalyst active monomer or the flow equalizing anti-abrasion module on the grid, and preferably, the supporting and reinforcing part is made of flat steel with the thickness of 3-5mm and the height of 30-50 mm.
Furthermore, the height of the wear-resistant layer monomer is 30-50mm, and the wear-resistant layer monomer is made of high-temperature wear-resistant materials, such as wear-resistant ceramics, corundum mullite and the like.
Furthermore, the upper part of the flow equalizing anti-abrasion layer is provided with a layer of steel wire mesh, and the steel wire mesh can play a role in protecting the anti-abrasion layer monomer and blocking large particles.
Furthermore, the flow equalizing wear-resistant layer can be arranged on the supporting reinforcing member or can be directly arranged on the catalyst active monomer.
The utility model has the advantages that: the device of the utility model can effectively prevent the active monomer of the denitration catalyst from being worn by the dust-containing smoke, prolong the service life of the active component of the catalyst and ensure the long-period stable operation of the denitration system; meanwhile, during boiler shutdown maintenance, the abrasion-proof layer monomer which is seriously abraded can be replaced, so that expensive catalyst is prevented from being integrally replaced, and the operating cost is reduced.
Drawings
FIG. 1 is a schematic view of the present invention during installation and use;
FIG. 2 is a top view of the catalyst module apparatus of the present invention;
fig. 3 is a sectional view taken along line a-a of embodiment 1 of the present invention;
fig. 4 is a B-B sectional view of embodiment 1 of the present invention;
fig. 5 is a sectional view taken along line a-a of embodiment 2 of the present invention;
fig. 6 is a B-B sectional view of embodiment 2 of the present invention;
in the figure: 1: flue wall, 2: catalyst layer, 3: sealing device, 4: lower support reinforcement, 5: catalyst outer frame, 6: catalyst active monomer, 7: sealing filler material, 8: middle support reinforcement, 9: steel wire mesh, 10: wear-resistant layer monomer, 11: upper support reinforcement, 12: and (5) fastening the screw.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Example 1
As shown in fig. 1-4, the SCR denitration catalyst module device with a flow equalization anti-wear layer comprises a catalyst outer frame 5, a lower supporting and reinforcing member 4, a catalyst active monomer 6, a sealing device 3, a middle supporting and reinforcing member 8, a flow equalization anti-wear layer, an upper supporting and reinforcing member 11, a steel wire mesh 9 and fixing screws, wherein the catalyst outer frame 5 is formed by processing a steel plate with a thickness of 3mm, the specific size is determined by the actual required size of a denitration project, the catalyst active monomer 6 is arranged in the catalyst outer frame 5, the below of catalyst layer 2 is provided with lower part support reinforcement 4, and lower part support reinforcement 4 is used for fixing catalyst layer 2 on flue wall 1, and lower part support reinforcement 4 is by 5mm thick, and the processing of the vertically and horizontally staggered of 50 mm's band iron forms latticedly, and the net upper berth is equipped with wire net 9, and catalyst layer 2 monomer is arranged on lower part support reinforcement 4.
In the embodiment, a middle supporting and reinforcing part 8 is arranged 10cm above a catalyst layer 2, a flow equalizing anti-abrasion layer is arranged on the middle supporting and reinforcing part 8, a layer of steel wire mesh 9 is arranged between the flow equalizing anti-abrasion layer and the middle supporting and reinforcing part to play roles of protecting a catalyst and bearing the flow equalizing anti-abrasion layer, an upper supporting and reinforcing part 11 is arranged above the flow equalizing anti-abrasion layer, and the steel wire mesh 9 is also arranged above the upper supporting and reinforcing part 11 to play roles of intercepting large particles in flue gas and protecting the flow equalizing anti-abrasion layer; the two layers of steel wire meshes 9 are fixed on the catalyst outer frame 5 by fastening screws 12 so as to ensure stability and firmness.
In the embodiment, the cross-sectional dimension of the catalyst active monomer 6 is 150 x 150mm, the height is customized according to project requirements, and the catalyst active monomer is filled with a high-temperature-resistant sealing filling material 7 to ensure the tightness; the sealing filler is ceramic fiber cotton, the flow equalizing anti-abrasion layer is composed of a plurality of anti-abrasion layer monomers 10, the size of each anti-abrasion layer monomer 10 is the same as that of the catalyst active monomer 6, the anti-abrasion layer monomer is also 150mm by 150mm, the height of each anti-abrasion layer monomer is 30mm, and the anti-abrasion layer monomers are made of anti-abrasion ceramic; the abrasion-proof layer monomers 10 are filled with ceramic fiber cotton, and the catalyst active monomers 6 and the abrasion-proof layer monomers 10 are in up-down one-to-one correspondence during installation.
The denitration catalyst device of this embodiment is when using, the indiscriminate flue gas of wadding is at first through the wearing layer that flow equalizes by the rectification vertical flue gas, lead to the catalyst active layer perpendicularly again, the wearing layer that flow equalizes is together wrapped up in the catalyst frame with the catalyst layer, accomplish the preparation at catalyst manufacturing factory, whole fortune is to the field installation, the wearing layer that flow equalizes can tolerate long-time flue gas abrasion, can effectual protection catalyst active monomer 6 not receive wearing and tearing, long-time operation back, can change when boiler annual overhaul through the serious wear resistant device of inspection wearing and tearing, thereby the physical life of extension catalyst.
Example 2
As shown in fig. 5-6, the difference between this embodiment 2 and embodiment 1 is that the flow equalizing wear-resistant layer is directly disposed on the catalyst active monomer, and no middle supporting reinforcement is disposed between the two layers, so that the installation is simpler and more convenient, and the cost is reduced.
It is obvious that the above are only some embodiments of the present invention, and are not used for limiting the present invention, and for those skilled in the art, the present invention can have the combination and modification of the above various technical features, and those skilled in the art can replace the modifications, equivalents, or use the structure or method of the present invention in other fields to achieve the same effect without departing from the spirit and scope of the present invention, and all belong to the protection scope of the present invention.
Claims (10)
1. The utility model provides a be equipped with SCR denitration catalyst module device of wearing layer that flow equalizes, includes catalyst frame (5), catalyst layer (2), support reinforcement, its characterized in that: the catalyst layer is formed by splicing a plurality of catalyst active monomers (6), the catalyst active monomers (6) are uniformly arranged in the catalyst outer frame (5), the supporting and reinforcing member is used for supporting the catalyst layer (2) or the flow-equalizing anti-abrasion layer, and the flow-equalizing anti-abrasion layer is arranged above the catalyst layer (2).
2. The SCR denitration catalyst module apparatus of claim 1, equipped with a flow equalization wear layer, wherein: the cross-sectional dimension of the catalyst active monomer (6) is 150mm by 150mm, the height is customized according to actual needs, and the catalyst active monomer (6) is filled with a high-temperature sealing filling material (7).
3. The SCR denitration catalyst module apparatus of claim 2, wherein the flow equalization wear layer comprises: the high-temperature sealing filling material (7) is a high-temperature resistant material, such as ceramic fiber cotton.
4. The SCR denitration catalyst module apparatus of claim 1, equipped with a flow equalization wear layer, wherein: the catalyst outer frame (5) is formed by processing a steel plate with the thickness of 3-6mm, and the specific size is set according to actual requirements.
5. The SCR denitration catalyst module device with the flow equalization wear prevention layer as claimed in claim 4, wherein: the supporting and reinforcing part is formed by processing a metal plate, the metal plate is arranged in a criss-cross mode to form a grid shape, and a wire mesh is laid on the grid.
6. The SCR denitration catalyst module apparatus of claim 5, wherein: the supporting and reinforcing member is made of flat steel with the thickness of 3-5mm and the height of 30-50 mm.
7. The SCR denitration catalyst module apparatus of claim 1, equipped with a flow equalization wear layer, wherein: the flow equalizing anti-abrasion layer is composed of a plurality of anti-abrasion layer monomers (10), and the cross section size of each anti-abrasion layer monomer (10) is the same as that of the catalyst active monomer (6).
8. The SCR denitration catalyst module apparatus of claim 7, wherein: the height of the wear-resistant layer monomer (10) is 30-50mm, and the wear-resistant layer monomer is made of high-temperature wear-resistant materials, such as wear-resistant ceramic and corundum-mullite.
9. The SCR denitration catalyst module apparatus of claim 1, equipped with a flow equalization wear layer, wherein: the upper portion of the flow equalizing anti-abrasion layer is provided with a steel wire mesh (9) which plays roles of protecting an anti-abrasion layer monomer (10) and blocking large particles.
10. The SCR denitration catalyst module apparatus of claim 1, equipped with a flow equalization wear layer, wherein: the flow equalizing wear-resistant layer is arranged on the supporting and reinforcing member or directly arranged on the catalyst active monomer (6).
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| CN202020505549.7U CN212091701U (en) | 2020-04-09 | 2020-04-09 | SCR denitration catalyst module device with flow equalization anti-abrasion layer |
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| CN202020505549.7U CN212091701U (en) | 2020-04-09 | 2020-04-09 | SCR denitration catalyst module device with flow equalization anti-abrasion layer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113069917A (en) * | 2021-04-20 | 2021-07-06 | 南京科宜环保科技有限公司 | Denitration catalyst module box with ammonia adsorption function and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113069917A (en) * | 2021-04-20 | 2021-07-06 | 南京科宜环保科技有限公司 | Denitration catalyst module box with ammonia adsorption function and preparation method thereof |
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