CN216321033U - Dry quenching desulfurizer conveying pipeline convenient to dredge - Google Patents
Dry quenching desulfurizer conveying pipeline convenient to dredge Download PDFInfo
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- CN216321033U CN216321033U CN202122989859.8U CN202122989859U CN216321033U CN 216321033 U CN216321033 U CN 216321033U CN 202122989859 U CN202122989859 U CN 202122989859U CN 216321033 U CN216321033 U CN 216321033U
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Abstract
The utility model relates to a dry quenching desulfurizer conveying pipeline convenient to dredge, which comprises a first desulfurizer conveying pipe and a second desulfurizer conveying pipe, wherein the first desulfurizer conveying pipe is divided into two paths, one path is connected with a desulfurizer inlet of a desulfurizing tower, the other path is connected with a coke-loading dust removal pipe, a first material passing valve is arranged on one path of the first desulfurizer conveying pipe connected with the coke-loading dust removal pipe, and a second material passing valve is arranged on one path of the first desulfurizer conveying pipe connected with the desulfurizer inlet of the desulfurizing tower; a first compressed air purging pipe is connected to a feeding side pipeline of the first through valve, and a second compressed air purging pipe is connected to a feeding side pipeline of the second through valve; the first compressed air purging pipe is provided with a first compressed air regulating valve, and the second compressed air purging pipe is provided with a second compressed air regulating valve. The utility model achieves the purpose of on-line dredging blocked pipelines without stopping grinding the machine and detaching the flange.
Description
Technical Field
The utility model relates to the technical field of dredging of solid dust conveying pipelines, in particular to a dry quenching desulfurizer conveying pipeline convenient to dredge.
Background
The flue gas discharged from the dry quenching production device contains partial sulfur dioxide, and the sulfur dioxide content in the flue gas needs to be reduced to be lower than 50mg/m according to the environmental protection requirement3The emission can reach the standard. In order to meet the requirement of environmental protection, a set of dry desulphurization device is newly added in a coke dry quenching workshop of the factory, and the principle of the dry quenching dry desulphurization device is that desulfurizer baking soda powder is further ground into fine particles by a grinder, and the desulfurizer is sent to a conveying pipeline by a conveying fan after being ground until the fineness of the desulfurizer meets D90 being less than or equal to 20 mu m. At present, the desulfurization system of the factory is connected with two sets of grinder systems, the first grinder system can convey desulfurizer powder to a coke-loading dust removal pipe and a desulfurization tower, and switching can be carried out by adjusting a field ball valve according to actual working conditions; the second grinder system delivers the desulfurizer powder to the desulfurization tower.
In a desulfurizing tower and a coke-containing dust removal pipe, the desulfurizing agent sodium bicarbonate particles are quickly thermally activated when encountering high-temperature flue gas, fine desulfurizing agent particles expand like popcorn, the specific surface area is further quickly increased to form a porous loose structure, so that the desulfurizing agent is fully contacted with acidic oxides such as sulfur dioxide and the like in the flue gas to generate physical and chemical reactions, the reaction process is quick and full, products such as sodium sulfate and the like can be quickly generated within 2 seconds, pollutants such as gaseous sulfur dioxide and the like in the flue gas are removed after being solidified, and the aim of flue gas desulfurization is fulfilled.
When the coke treatment capacity of the dry quenching device is large and the load is high, not only is the flow of the generated flue gas large, but also a large amount of coke volatilizes sulfur-containing combustible gas in the furnace to further increase the sulfur dioxide content in the flue gas, so that the sodium bicarbonate spraying amount of the desulfurization system is correspondingly increased, and two sets of grinder systems are required to be put into use together to reduce the sulfur content in the flue gas to 50mg/m3The following. And fine solid particles are conveyed in the pipeline in the dry desulfurization system through gas, when the flow of the conveyed solid particles is large, the pipeline is easily blocked (particularly the branched section of the conveying pipeline of the first grinding machine system), and an environmental protection accident that the sulfur content of the flue gas exceeds the standard can be caused in serious cases. At present traditional mediation mode is generally to stop grinding the machine system, unloads flange on the pipeline, then recovers the original state again after sweeping the mediation with the compressed air hose, and not only consuming time and wasting power, intensity of labour is very big, need stop grinding the machine operation in the processing procedure moreover, leads to flue gas sulfur content sharply to rise easily, probably causes the environmental protection accident.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a dry quenching desulfurizer conveying pipeline which is convenient to dredge.
The utility model is realized by the following technical scheme, and provides a dry quenching desulfurizer conveying pipeline convenient to dredge, which comprises a first desulfurizer conveying pipe and a second desulfurizer conveying pipe, wherein the first desulfurizer conveying pipe is divided into two paths, one path is connected with a desulfurizer inlet of a desulfurizing tower, the other path is connected with a coke-loading dust removal pipe, a first material passing valve is arranged on one path of the first desulfurizer conveying pipe connected with the coke-loading dust removal pipe, and a second material passing valve is arranged on one path of the first desulfurizer conveying pipe connected with the desulfurizer inlet of the desulfurizing tower; a first compressed air purging pipe is connected to a feeding side pipeline of the first through valve, and a second compressed air purging pipe is connected to a feeding side pipeline of the second through valve; the first compressed air purging pipe is provided with a first compressed air regulating valve, and the second compressed air purging pipe is provided with a second compressed air regulating valve.
Preferably, the second desulfurizer conveying pipe is connected with a desulfurizer inlet of the desulfurizing tower.
Preferably, a feed valve is installed at the inlet of the desulfurizing agent of the desulfurizing tower.
Preferably, the feed valve is an electric ball valve.
Preferably, the first compressed air purge pipe and the second compressed air purge pipe are connected to a compressed air storage tank.
The utility model has the beneficial effects that:
1. according to the utility model, the grinding machine does not need to be stopped in the pipeline dredging process, and the flanges at two sides of the pipeline do not need to be disassembled, so that the labor intensity is reduced, the high-intensity operation is avoided, the time for starting and stopping the grinding machine, disassembling and assembling the flanges is saved, the possibility that the small-time value of the sulfur content in the flue gas exceeds the standard can be obviously reduced, and the environmental protection requirement is met.
2. In the process of dredging the pipeline, part of the desulfurizer continuously enters the desulfurizing tower or the coke-loading dust removal pipe, even if the instantaneous value of the sulfur content of the flue gas is difficult to guarantee to exceed the standard in a short time, the instantaneous sharp rise of the sulfur content of the flue gas at the outlet cannot be caused, and conditions are created for the small value of the sulfur content of the flue gas not exceeding the standard in the process of dredging the pipeline.
3. In the treatment process, compressed air is blown into the pipeline to provide partial oxygen for the desulfurization reaction, and the efficiency of the ternary desulfurization reaction of the sodium bicarbonate desulfurizer, sulfur dioxide and oxygen can be improved, so that the sulfur content of the flue gas is reduced, and the environmental protection accident that the sulfur content exceeds the standard is further avoided.
4. Harm and waste caused by the overflow of baking soda dust during the dredging process by disassembling the flange are avoided, the safety and the economical efficiency are improved, meanwhile, the labor required by the dredging process is reduced, and the labor is effectively saved.
5. The utility model has simple structure, convenient operation and maintenance, less one-time investment and small occupied area, and can flexibly process according to different blockage degrees of the dust conveying pipeline to achieve the optimal dredging.
Drawings
FIG. 1 is a schematic structural view of the present invention;
shown in the figure:
1. the device comprises a first compressed air regulating valve, a second compressed air regulating valve, a desulfurizing tower, a coke-loading dust removal pipe, a first material passing valve, a second material passing valve, a feeding valve, a first desulfurizing agent conveying pipe, a second desulfurizing agent conveying pipe and a second desulfurizing agent conveying pipe.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
As shown in FIG. 1, the utility model comprises a desulfurizing tower 3, a first desulfurizing agent conveying pipe 8, a second desulfurizing agent conveying pipe 9 and a coke-containing dust-removing pipe 4. The first desulfurizer conveying pipe 8 is divided into two paths, wherein one path is connected with a desulfurizer inlet of the desulfurizing tower 3, the other path is connected with the coke-loading dust-removing pipe 4, and the second desulfurizer conveying pipe 9 is connected with a desulfurizer inlet of the desulfurizing tower 3. A feeding valve 7 is installed at a desulfurizer inlet of the desulfurizing tower 3, and the feeding valve 7 is an electric ball valve.
A first material passing valve 5 is arranged on one way of connecting a first desulfurizer conveying pipe 8 and a coke-loading dust removal pipe 4, a second material passing valve 6 is arranged on one way of connecting the first desulfurizer conveying pipe 8 and a desulfurizer inlet of a desulfurizing tower 3, and the first material passing valve 5 and the second material passing valve 6 are ball valves. A first compressed air purge pipe is connected to the feed side line of the first vent valve 5, and a second compressed air purge pipe is connected to the feed side line of the second vent valve 6. The first compressed air purging pipe is provided with a first compressed air regulating valve 1, and the second compressed air purging pipe is provided with a second compressed air regulating valve 2. The first compressed air purging pipe and the second compressed air purging pipe are connected with the compressed air storage tank.
In actual work, the desulfurizer conveying pipe between the first through valve 5 and the second through valve 6 is particularly easy to block, and when the section of the pipeline is blocked, the blocked pipeline is dredged by the pneumatic force of compressed air. When the blockage is not serious, the first material passing valve 5 can be closed, the first compressed air regulating valve 1 is opened, or the second material passing valve 6 is closed, the second compressed air regulating valve 2 is opened to dredge the pipeline, and if the pipeline cannot be dredged, the steps can be alternately carried out. If the blockage is serious, the method still can not dredge the pipeline, the first material-passing valve 5 can be closed, the first compressed air regulating valve 1 can be opened, or the second material-passing valve 6 can be closed, the second compressed air regulating valve 2 can be opened, or the steps are alternately carried out, and the solid particles blocked in the pipeline can be loosened until the pipeline is dredged.
The utility model has simple structure, convenient operation and maintenance, less one-time investment and small occupied area, and can flexibly process according to different blockage degrees of the dust conveying pipeline to achieve the optimal dredging.
First compressed air governing valve 1 and second compressed air governing valve 2 are manual control valve, can adjust the compressed air pressure and the flow of the pipeline of blowing in a flexible way, guarantee the best mediation effect. The first through material valve 5 and the second through material valve 6 can be respectively closed or fully closed in the pipeline dredging process, so that flexible operation under different blockage degrees can be ensured.
Because the first desulfurizer conveying pipe 8 is connected with the desulfurizing tower 3 on one path and the coke-containing dust-removing pipe 4 on the other path, a part of desulfurizer enters the desulfurizing tower 3 or the coke-containing dust-removing pipe 4 in the treatment process, and partial desulfurization effect can be achieved, thereby achieving the purpose of dredging and blocking the pipeline on line without stopping a grinding machine and disassembling a flange; the device simple structure, convenient to use, easy to maintain can effectively dredge the desulfurization conveyer pipe that blocks up, avoid because of the emergence of the environmental protection accident that the pipeline blockked up and cause.
Of course, the above description is not limited to the above examples, and the undescribed technical features of the present invention can be implemented by or using the prior art, and will not be described herein again; the above embodiments and drawings are only for illustrating the technical solutions of the present invention and not for limiting the present invention, and the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that changes, modifications, additions or substitutions within the spirit and scope of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and shall also fall within the scope of the claims of the present invention.
Claims (5)
1. A dry quenching desulfurizer conveying pipeline convenient to dredge is characterized in that: the device comprises a first desulfurizer conveying pipe and a second desulfurizer conveying pipe, wherein the first desulfurizer conveying pipe is divided into two paths, one path is connected with a desulfurizer inlet of a desulfurizing tower, the other path is connected with a coke-loading dust removal pipe, a first material passing valve is arranged on one path of the first desulfurizer conveying pipe connected with the coke-loading dust removal pipe, and a second material passing valve is arranged on one path of the first desulfurizer conveying pipe connected with the desulfurizer inlet of the desulfurizing tower; a first compressed air purging pipe is connected to a feeding side pipeline of the first through valve, and a second compressed air purging pipe is connected to a feeding side pipeline of the second through valve; the first compressed air purging pipe is provided with a first compressed air regulating valve, and the second compressed air purging pipe is provided with a second compressed air regulating valve.
2. The dry quenching desulfurizing agent conveying pipeline convenient to dredge is characterized in that: the second desulfurizer conveying pipe is connected with a desulfurizer inlet of the desulfurizing tower.
3. The dry quenching desulfurizing agent conveying pipeline convenient to dredge is characterized in that: a feeding valve is arranged at the inlet of the desulfurizing agent of the desulfurizing tower.
4. The dry quenching desulfurizing agent conveying pipeline convenient to dredge is characterized in that: the feed valve is an electric ball valve.
5. The dry quenching desulfurizing agent conveying pipeline convenient to dredge is characterized in that: the first compressed air purging pipe and the second compressed air purging pipe are connected with the compressed air storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122989859.8U CN216321033U (en) | 2021-12-01 | 2021-12-01 | Dry quenching desulfurizer conveying pipeline convenient to dredge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122989859.8U CN216321033U (en) | 2021-12-01 | 2021-12-01 | Dry quenching desulfurizer conveying pipeline convenient to dredge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216321033U true CN216321033U (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122989859.8U Active CN216321033U (en) | 2021-12-01 | 2021-12-01 | Dry quenching desulfurizer conveying pipeline convenient to dredge |
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| CN (1) | CN216321033U (en) |
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2021
- 2021-12-01 CN CN202122989859.8U patent/CN216321033U/en active Active
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