CN216703864U - Moving bed flue gas dry desulfurization tower device - Google Patents
Moving bed flue gas dry desulfurization tower device Download PDFInfo
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- CN216703864U CN216703864U CN202123437086.9U CN202123437086U CN216703864U CN 216703864 U CN216703864 U CN 216703864U CN 202123437086 U CN202123437086 U CN 202123437086U CN 216703864 U CN216703864 U CN 216703864U
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Abstract
The utility model discloses a moving bed flue gas dry desulfurization tower device, which comprises an outer barrel of an absorption tower and a cylindrical desulfurizer layer, wherein the cylindrical desulfurizer layer is coaxially arranged inside the outer barrel of the absorption tower and divides the inside of the absorption tower into an inner barrel and an outer barrel; the cylindrical desulfurizer layer is sequentially provided with an inner porous wall, a material layer and an outer porous wall from inside to outside; the smoke inlet and the smoke outlet are respectively positioned in the inner cylinder and the outer cylinder, or the smoke inlet and the smoke outlet are respectively positioned in the outer cylinder and the inner cylinder. The inner wall and the outer wall of the cylindrical desulfurizer layer are porous walls, so that flue gas can penetrate through the desulfurizer to be desulfurized, and the desulfurized flue gas enters the cylinder body on the other side and flows out from a flue gas outlet. By adopting the mode, better desulfurization effect can be obtained.
Description
Technical Field
The utility model belongs to the field of dry desulphurization, and particularly relates to a moving bed flue gas dry desulphurization device.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The flue gas generated in the production process of power plants and steel plants contains SO2According to the national environmental protection policy, the smoke can reach the emission value after being treated, and then the smoke can reach the emission standard. Common flue gas treatment methods include: wet desulfurization, semi-dry desulfurization and dry desulfurization, wherein the most widely applied method is wet desulfurization. The problems of wet desulphurization are as follows: the system comprises a pulping system, a desulfurization system, a dehydration system, an electrical and thermal control system and the like, the matching system is complex, and wet desulfurization generates pollutants such as waste, wastewater and the like, and the waste and the wastewater need to be subjected to secondary treatment. The problems of the semi-dry desulfurization method are as follows: the system comprises a desulfurizing tower, an electric dust remover, auxiliary equipment and the like, and the system has a large number of equipment and occupies a large space; the semi-dry desulfurization system is unstable in operation and is easy to cause bed collapse accidents and the like.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a moving bed flue gas dry desulphurization device. The desulfurizing device is especially suitable for small amount of flue gas and SO2The content of the flue gas is not high, and waste water are not generated in the flue gas desulfurization process.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
a moving bed flue gas dry desulfurization device comprises an outer barrel body of an absorption tower and a cylindrical desulfurizer layer, wherein the cylindrical desulfurizer layer is coaxially arranged inside the outer barrel body of the absorption tower and divides the inside of the absorption tower into an inner barrel and an outer barrel;
the cylindrical desulfurizer layer is sequentially provided with an inner porous wall, a material layer and an outer porous wall from inside to outside;
the smoke inlet and the smoke outlet are respectively positioned in the inner cylinder and the outer cylinder, or the smoke inlet and the smoke outlet are respectively positioned in the outer cylinder and the inner cylinder.
The above-described one or more embodiments of the present invention achieve the following advantageous effects:
the inner wall and the outer wall of the cylindrical desulfurizer layer are porous walls, so that flue gas can penetrate through the desulfurizer to be desulfurized, and the desulfurized flue gas enters the cylinder body on the other side and flows out from a flue gas outlet. By adopting the mode, better desulfurization effect can be obtained.
When the desulfurizer is deactivated, the desulfurizer can be replaced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model.
FIG. 1 is a schematic diagram of the external overall structure of a moving bed desulfurization column in accordance with one or more embodiments of the present invention;
FIG. 2 is a schematic view of another side view of a moving bed desulfurization column in accordance with one or more embodiments of the present invention;
FIG. 3 is a cross-sectional profile of a moving bed desulfurization column according to one or more embodiments of the present invention;
FIG. 4 is a schematic structural view of a porous wall of a desulfurizing agent according to one or more embodiments of the present invention;
FIG. 5 is a schematic perspective view of a moving bed desulfurization tower according to one or more embodiments of the present invention;
FIG. 6 is a schematic diagram of the relative position of the ash hopper and the flue gas inlet duct according to one or more embodiments of the present invention.
In the figure: the mutual spacing or size is exaggerated to show the position of each part, and the schematic diagram is only used for illustration;
the method comprises the following steps of 1-flue gas outlet, 2-absorption tower outer cylinder, 3-reinforced section steel, 4-flue gas inlet, 5-observation hole, 6-inner cylinder, 7-cylindrical desulfurizer layer, 8-outer cylinder, 9-feeding port, 10-feeding channel, 11-flue gas inlet pipeline and 12-ash bucket.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the utility model as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
A moving bed flue gas dry desulfurization device comprises an outer barrel body of an absorption tower and a cylindrical desulfurizer layer, wherein the cylindrical desulfurizer layer is coaxially arranged inside the outer barrel body of the absorption tower and divides the inside of the absorption tower into an inner barrel and an outer barrel;
the cylindrical desulfurizer layer is sequentially provided with an inner porous wall, a material layer and an outer porous wall from inside to outside;
the smoke inlet and the smoke outlet are respectively positioned in the inner cylinder and the outer cylinder, or the smoke inlet and the smoke outlet are respectively positioned in the outer cylinder and the inner cylinder.
In some embodiments, an ash bucket is arranged below the cylindrical desulfurizer layer, and the outer diameter of the ash bucket is greater than or equal to that of the cylindrical desulfurizer.
Furthermore, the bottom support plate of the cylindrical desulfurizer layer can be detachably arranged or can be arranged in a downward overturning manner.
The flue gas contains a large amount of dust, and when desulfurization is carried out, the flue gas enters the desulfurizing agent layer, most of the dust is intercepted outside the desulfurizing agent layer, and the dust directly overcomes the disturbance of air flow under the action of gravity and falls into the ash bucket below, and can be delivered outside through a pipeline.
The bottom support plate of the cylindrical desulfurizer layer is detachably arranged, and after the desulfurizer is inactivated, the bottom support plate can be detached or turned downwards, so that the desulfurizer is discharged into an ash bucket at the bottom and is discharged outside through a pipeline for regeneration or treatment.
In some embodiments, the flue gas inlet pipe is disposed above the ash bucket, the opening faces upward, and the outer diameter of the flue gas inlet pipe is smaller than the inner diameter of the ash bucket.
The flue gas gets into in the absorption tower inner tube from flue gas import from bottom to top, and in the desulfurization process, the dust is intercepted outside the perforated plate to fall along the inner wall of interior porous wall, fall into the ash bucket from the clearance between flue gas inlet pipe outer wall and the ash bucket inner wall, realize the collection of dust.
Because the flue gas inlet pipeline sets up in the top of ash bucket, the opening is the same with ash bucket opening direction, so can prevent effectively that the flue gas from backmixing from producing the disturbance to the dust that falls into in the ash bucket.
In some embodiments, the top of the absorption tower is provided with a feeding port, and the feeding port is communicated with the material layer through a feeding channel.
Further, the dog-house is provided with the apron.
Furthermore, a handle is arranged on the cover plate.
The feeding port is used for feeding materials into the material layer, and when the desulfurizer is inactivated, the absorption tower crane can be mounted and turned over, so that the desulfurizer flows out from the feeding channel and the feeding port for regeneration or subsequent treatment.
In some embodiments, the pore size of the through pores on the inner porous wall and the outer porous wall is less than the particle size of the desulfurizing agent.
In some embodiments, the bottom of the outer cylinder of the absorption tower is provided with a manhole. For maintenance and inspection.
In some embodiments, the flue gas outlet is provided at the top of the outer tub.
The utility model is further illustrated by the following figures and examples.
As shown in fig. 1, fig. 2 and fig. 5, a moving bed flue gas dry desulfurization device comprises an outer cylinder 2 of an absorption tower and a cylindrical desulfurizing agent layer 7, wherein the cylindrical desulfurizing agent layer 7 is coaxially arranged inside the outer cylinder 2 of the absorption tower and divides the inside of the absorption tower into an inner cylinder 6 and an outer cylinder 8; the cylindrical desulfurizer layer 7 is provided with an inner porous wall, a material layer and an outer porous wall in sequence from inside to outside, as shown in fig. 3 and 4; the flue gas inlet and outlet are respectively positioned on the inner cylinder 6 and the outer cylinder 8, or the flue gas inlet and outlet are respectively positioned on the outer cylinder 8 and the inner cylinder 6.
An ash bucket 12 is arranged below the cylindrical desulfurizer layer 7, and the outer diameter of the ash bucket 12 is larger than or equal to that of the cylindrical desulfurizer layer 7.
The flue gas inlet pipeline is arranged above the ash bucket 12, the opening faces upwards, and the outer diameter of the flue gas inlet pipeline 11 is smaller than the inner diameter of the ash bucket 12.
The top of the tower of the absorption tower is provided with a feed inlet which is communicated with the material layer through a feed channel. The dog-house is provided with the apron, is provided with the handle on the apron. The feeding port is used for feeding materials into the material layer, and when the desulfurizer is inactivated, the absorption tower crane can be installed and turned over, so that the desulfurizer flows out from the feeding channel and the feeding port for regeneration or subsequent treatment.
The aperture of the through holes on the inner porous wall and the outer porous wall is smaller than the particle size of the desulfurizer, so that the desulfurizer can be prevented from sliding off from the through holes on the porous walls.
The bottom of the outer cylinder of the absorption tower is provided with a manhole for maintenance and inspection. The flue gas outlet is arranged at the top of the outer barrel.
The outer barrel of the absorption tower is a closed barrel, the barrel is of a self-operated structure and is not supported by a steel support, the wall plate of the barrel is made of carbon steel and is in direct contact with flue gas, and the barrel is externally reinforced by reinforced section steel. The barrel is provided with a flue gas inlet, a manhole, an ash conveying system and a top wall plate charging hole. The internal arrangement form of the absorption tower comprises an inner cylinder, a material layer and an outer cylinder. Flue gas enters the inner cylinder of the desulfurizing tower from the bottom, the flue gas is diffused to the outer cylinder from the inner cylinder through a desulfurizing agent material layer, and the flue gas of the outer cylinder is discharged from a flue gas outlet at the top of the desulfurizing tower; the flue gas passes through a desulfurizer bed which adsorbs SO in the flue gas2Thereby achieving the aim of desulfurization. Porous plates are needed on two sides of the desulfurizer to ensure that the desulfurizer can be stabilized in a material layer and normal circulation of flue gasThe perforated plate is a steel plate with holes, and the holes are smaller than the diameter of the desulfurizer, so that the desulfurizer is prevented from overflowing; the radiation ribs are arranged between the inner cylinder and the material layer and between the material layer and the outer cylinder to fix the structure. The inside and the outside barrel of desulfurizing tower structure as an organic whole. The lower part of the desulfurizing tower is provided with a hopper which is connected with an ash conveying system for discharging waste materials.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a remove bed flue gas dry desulfurization tower device which characterized in that: the absorption tower comprises an outer barrel of the absorption tower and a cylindrical desulfurizer layer, wherein the cylindrical desulfurizer layer is coaxially arranged inside the outer barrel of the absorption tower and divides the inside of the absorption tower into an inner barrel and an outer barrel;
the cylindrical desulfurizer layer is sequentially provided with an inner porous wall, a material layer and an outer porous wall from inside to outside;
the smoke inlet and the smoke outlet are respectively positioned in the inner cylinder and the outer cylinder, or the smoke inlet and the smoke outlet are respectively positioned in the outer cylinder and the inner cylinder.
2. The moving bed flue gas dry desulfurization tower apparatus according to claim 1, characterized in that: an ash bucket is arranged below the cylindrical desulfurizer layer, and the outer diameter of the ash bucket is larger than or equal to that of the cylindrical desulfurizer.
3. The moving bed flue gas dry desulfurization tower apparatus according to claim 2, characterized in that: the bottom support plate of the cylindrical desulfurizer layer can be detachably arranged or can be arranged in a downward overturning manner.
4. The moving bed flue gas dry desulfurization tower apparatus according to claim 2, characterized in that: the flue gas inlet pipeline is arranged above the ash bucket, the opening faces upwards, and the outer diameter of the flue gas inlet pipeline is smaller than the inner diameter of the ash bucket.
5. The moving bed flue gas dry desulfurization tower apparatus according to claim 1, characterized in that: the top of the tower of the absorption tower is provided with a feed inlet which is communicated with the material layer through a feed channel.
6. The moving bed flue gas dry desulfurization tower apparatus according to claim 5, characterized in that: the dog-house is provided with the apron.
7. The moving bed flue gas dry desulfurization tower apparatus according to claim 6, characterized in that: the cover plate is provided with a handle.
8. The moving bed flue gas dry desulfurization tower apparatus according to claim 1, characterized in that: the aperture of the through holes on the inner porous wall and the outer porous wall is smaller than the particle size of the desulfurizer.
9. The moving bed flue gas dry desulfurization tower apparatus according to claim 1, characterized in that: and a manhole is arranged at the bottom of the outer cylinder of the absorption tower.
10. The moving bed flue gas dry desulfurization tower apparatus according to claim 1, characterized in that: the flue gas outlet is arranged at the top of the outer barrel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123437086.9U CN216703864U (en) | 2021-12-30 | 2021-12-30 | Moving bed flue gas dry desulfurization tower device |
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| CN202123437086.9U CN216703864U (en) | 2021-12-30 | 2021-12-30 | Moving bed flue gas dry desulfurization tower device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115006984A (en) * | 2022-06-14 | 2022-09-06 | 安徽欣创节能环保科技股份有限公司 | Convection type fixed bed desulfurization modular reactor |
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2021
- 2021-12-30 CN CN202123437086.9U patent/CN216703864U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115006984A (en) * | 2022-06-14 | 2022-09-06 | 安徽欣创节能环保科技股份有限公司 | Convection type fixed bed desulfurization modular reactor |
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