CN214075826U - High-efficient desulphurization unit of burner gas - Google Patents
High-efficient desulphurization unit of burner gas Download PDFInfo
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- CN214075826U CN214075826U CN202021912052.3U CN202021912052U CN214075826U CN 214075826 U CN214075826 U CN 214075826U CN 202021912052 U CN202021912052 U CN 202021912052U CN 214075826 U CN214075826 U CN 214075826U
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- desulfurizer
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Abstract
The utility model provides a high-efficient desulphurization unit of burner gas, including vapour and liquid separator, vapour and liquid separator has the doctor solution and supplyes the mouth, and the vapour and liquid separator top has wet burner gas pipeline, vapour and liquid separator passes through power desulfurizer and burner gas pipe connection, and power desulfurizer diameter is less than the burner gas pipeline, disposes the draught fan in the burner gas pipeline, dispose the shower head in the power desulfurizer, vapour and liquid separator bottom supplies liquid toward the shower head through desulfurization circulating pump and backflow pipeline. The utility model discloses utilize the desulfurization pipeline of minor diameter to collide with the burner gas of high-speed flow, improve gas-liquid area of contact, accomplish desulfurization rapidly and cool off, can not have visible smoke feather in the air after discharging.
Description
Technical Field
The utility model relates to the technical field of desulfurization equipment, in particular to a high-efficiency desulfurization device for furnace gas.
Background
At present, most of devices for desulfurizing sulfur-containing furnace gas in the prior art are desulfurizing towers, which mainly adopt a mode of spraying alkaline solution to neutralize sulfur dioxide in the furnace gas, and the desulfurized flue gas is directly discharged into the atmosphere. The size of the desulfurizing tower is large, the desulfurizing tower needs to be matched with the gas amount generated by the cracking furnace, in the actual production process, a large amount of gas slowly enters the desulfurizing tower through a furnace gas pipeline to be sprayed and decomposed, sulfur dioxide in furnace gas can not be completely separated actually, the efficiency is low, fine particles and a small amount of sulfur dioxide still exist in the desulfurized furnace gas, a large amount of white or black smoke can still be generated under the condition of large-amount emission, and certain pollution can still be caused to the atmosphere.
Disclosure of Invention
In view of the above prior art not enough, an object of the utility model is to provide a high-efficient desulphurization unit of burner gas, can accomplish desulfurization and cooling fast, and exhaust burner gas does not have visible smoke plume, improves desulfurization effect and optimizes desulfurization efficiency greatly.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model relates to a high-efficient desulphurization unit of burner gas, including vapour and liquid separator, vapour and liquid separator has the doctor solution and supplyes the mouth, and the vapour and liquid separator top has wet burner gas pipeline, vapour and liquid separator passes through power desulfurizer and burner gas pipe connection, disposes the draught fan in the burner gas pipeline, dispose the shower head in the power desulfurizer, the vapour and liquid separator bottom supplies liquid toward the shower head through desulfurization circulating pump and backflow pipeline.
The diameter of the power desulfurizer of the utility model is smaller than the furnace gas pipeline.
The utility model discloses a power desulfurizer is 400 mm's vertical pipe for the diameter, and the diameter at its both ends is 500 mm.
The utility model discloses a return line connects reposition of redundant personnel branch pipe.
The utility model discloses a dispose the sheet frame heat exchanger among the return duct.
The ratio of the flow of the desulfurization liquid replenishing port to the flow of the branch pipe is 1: 1.
The utility model discloses a heat exchanger is all connected with the burner gas pipeline to wet burner gas pipeline, and heat exchanger still docks pyrolysis furnace outlet duct and evacuation pipe, specifically is the hot stove gas of pyrolysis furnace outlet duct output after heat exchanger and wet burner gas heat exchange, introduces the burner gas pipeline by the draught fan in, and wet burner gas that wet burner gas pipeline was discharged is discharged by the evacuation pipe after heat exchanger and hot stove gas heat exchange.
The utility model has the advantages that: the small-diameter desulfurization pipeline is adopted as a power desulfurizer with desulfurization and cooling functions, furnace gas flowing at high speed can collide with vaporific spray liquid after entering the power desulfurizer, the gas-liquid contact area is increased, desulfurization and cooling are rapidly completed, a heat exchange device is combined, heat exchange is completed between cracked hot furnace gas and desulfurized wet furnace gas, no visible smoke plume exists in discharged air, and the small-diameter power desulfurizer not only can greatly reduce the occupied area of equipment, but also greatly improves the effect compared with the prior art.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
The specific implementation mode is as follows:
the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the utility model relates to a high-efficient desulphurization unit of burner gas, including vapour and liquid separator 1, vapour and liquid separator 1 has doctor solution and replenishes mouth 10, vapour and liquid separator 1 top has wet burner gas pipeline 11, vapour and liquid separator 1 passes through power desulfurizer 2 and is connected with burner gas pipeline 3, dispose draught fan 31 in the burner gas pipeline 3, dispose shower head 21 in the power desulfurizer 2, specifically be that furnace gas pipeline 3 is introduced by draught fan 31 to pyrolysis furnace outlet duct 81 output hot burner gas, make hot stove gas high-speed flow and crowd into in power desulfurizer 2, carry out the desulfurization and further cool down in power desulfurizer 2, the separation of gaseous and liquid is accomplished in the last vapour and liquid separator 1 of entering.
The diameter of the power desulfurizer 2 is smaller than that of the furnace gas pipeline 3, and further, a communicating pipeline 22 is arranged between the power desulfurizer 2 and the gas-liquid separator 1, and the diameter of the communicating pipeline 22 should be larger than that of the power desulfurizer 2. When the hot furnace gas enters the power desulfurizer 2 at the flow speed of 20-40 meters per second under the pushing of the induced draft fan 31, the hot furnace gas flowing at high speed is mixed and collided with the mist desulfurization liquid sprayed by the spray header 21, the gas-liquid ratio of the hot furnace gas and the mist desulfurization liquid is 5-10, the contact area of the hot furnace gas is large, the hot furnace gas can complete desulfurization and cooling instantly, and the efficiency is greatly improved.
Preferably, the spraying direction of the spray header 21 is downward, and the power desulfurizer 2 is vertically arranged, so the furnace gas flowing at high speed can vertically and downwardly rush out of the power desulfurizer 2, the instantaneous state of the hot furnace gas in the power desulfurizer 2 is that the hot gas in the hot furnace gas has original vertical upward force in the vertical desulfurization power device 2, but has larger downward force under the action of the draught fan 31, under the condition that the spray header 21 sprays downwards in a large area, the hot furnace gas is acted by different forces in multiple directions, and the hot furnace gas can be in relatively large-area contact with the spray, thereby realizing temperature reduction and desulfurization.
The bottom of the gas-liquid separator 1 supplies liquid to the spray header 21 through a desulfurization circulating pump 4 and a return pipeline 5, the return pipeline 5 is connected with a branch flow pipe 6, namely, fresh desulfurization liquid entering the gas-liquid separator 1 is supplemented from a desulfurization liquid supplementing port 10 and is mixed with the desulfurization liquid entering the gas-liquid separator 1 in the power desulfurizer 2 after reaction, namely, the fresh desulfurization liquid is mixed with the system circulating liquid, and then the mixture is pumped by the desulfurization circulating pump 4 and then is sent to the spray header 21 and the branch flow pipe 6, so that the mixed desulfurization liquid circulates. In specific implementation, the ratio of the flow rate of the desulfurization solution replenishing port 10 to the flow rate of the branch pipe 6 is controlled to be 1:1, so that a large amount of fresh desulfurization solution needs to be replenished when the equipment starts to work, the amount of the replenished fresh solution can be equal to the amount of the reacted circulating solution when the equipment starts to normally run, and most of the reacted circulating solution can be discharged.
The discharge amount of the branch flow pipe 6 is controlled, the inflow amount of the desulfurization liquid supplementing opening 10 is controlled, about 80% of mixed liquid enters the power desulfurizer 2 through the spray header 21 to circulate, about 20% of mixed liquid is discharged through the branch flow pipe 6, the utilization rate of the desulfurization liquid reaches the optimal effect of recycling, and the mixed liquid discharged from the branch flow pipe 6 can be distributed to a desulfurization system to be desulfurized and regenerated.
The cyclone plate 12 should be arranged above the gas-liquid separator 1, when the hot furnace gas is efficiently desulfurized and cooled from the power desulfurizer 2, the wet furnace gas carrying with the water vapor rises and is discharged, most of the water vapor is separated by the cyclone plate 12 and flows back to the lower part of the gas-liquid separator 1, and thus the wet furnace gas containing a small amount of water vapor is discharged from the wet furnace gas pipeline 11. The lower part of the gas-liquid separator 1 should be provided with a sewage draining outlet 13, so that the gas-liquid separator 1 can be cleaned to drain impurities after the equipment stops working.
Because the hot furnace gas can be cooled in the power desulfurizer 2 by the circulating mixed desulfurization solution, the reacted desulfurization solution can absorb heat and can be cooled after being mixed with fresh desulfurization solution, and when the desulfurization circulating pump 4 is pumped into the return pipeline 5, the return pipeline 5 is provided with the plate-and-frame heat exchanger 51, so that the mixed desulfurization solution can be further cooled, the mixed desulfurization solution entering the spray header 21 can have a lower temperature, and the hot furnace gas can be desulfurized and cooled again to form perfect circulation.
In order to ensure effective temperature reduction of furnace gas in the desulfurization process and further reduce the cost required by temperature reduction, the wet furnace gas pipeline 11 and the furnace gas pipeline 3 are both connected with the heat exchanger 8, the heat exchanger 8 is also butted with a cracking furnace gas outlet pipe 81 and an emptying pipe 82, namely, the cracking furnace gas outlet pipe 81 is communicated with the furnace gas pipeline 3, the wet furnace gas pipeline 11 is communicated with the emptying pipe 82, the heat exchange of the two pipes is completed in the heat exchanger 8, the hot furnace gas output by the cracking furnace gas outlet pipe 81 is introduced into the furnace gas pipeline 3 through the induced draft fan 31 after the heat exchange of the hot furnace gas and the wet furnace gas is carried out by the heat exchanger 8, after the high-efficiency desulfurization and temperature reduction of the power desulfurizer 2, the wet furnace gas (the desulfurization is completed) discharged from the wet furnace gas pipeline 11 of the gas-liquid separator 1 is subjected to the heat exchange of the hot furnace gas through the heat exchanger 8, a small amount of water vapor contained in the wet furnace gas is completely evaporated and is discharged from the emptying pipe 82, thus the discharged gas is clean and transparent, no smoke plume was visible.
It is to be understood that the technical scope of the present invention is not limited to the content of the specification, and that modifications or changes may be made by those skilled in the art based on the above description, and all such modifications and changes are intended to fall within the scope of the appended claims.
Claims (7)
1. The utility model provides a high-efficient desulphurization unit of burner gas, includes vapour and liquid separator (1), vapour and liquid separator (1) has doctor solution and replenishes mouth (10), has wet burner gas pipeline (11) above vapour and liquid separator (1), its characterized in that: gas-liquid separator (1) is connected with burner gas pipeline (3) through power desulfurizer (2), disposes draught fan (31) in burner gas pipeline (3), dispose shower head (21) in power desulfurizer (2), gas-liquid separator (1) bottom is passed through desulfurization circulating pump (4) and backflow pipeline (5) and is supplied liquid toward shower head (21).
2. The high-efficiency desulfurization device for furnace gas according to claim 1, characterized in that: the diameter of the power desulfurizer (2) is smaller than that of the furnace gas pipeline (3).
3. The high-efficiency desulfurization device for furnace gas according to claim 2, characterized in that: the dynamic desulfurizer (2) is a vertical pipeline with the diameter of 400mm, and the diameters of two end parts of the vertical pipeline are 500 mm.
4. The high-efficiency desulfurization device for furnace gas according to claim 1, 2 or 3, characterized in that: and the return pipeline (5) is connected with a shunt branch pipe (6).
5. The high-efficiency desulfurization device for furnace gas according to claim 4, characterized in that: and a plate-and-frame heat exchanger (51) is arranged in the return pipeline (5).
6. The high-efficiency desulfurization device for furnace gas according to claim 4, characterized in that: the ratio of the flow of the desulfurization liquid replenishing port (10) to the flow of the branch pipe (6) is 1: 1.
7. The high-efficiency desulfurization device for furnace gas according to claim 1, 2 or 3, characterized in that: heat exchanger (8) is all connected with burner gas pipeline (3) in humid burner gas pipeline (11), and heat exchanger (8) still dock pyrolysis furnace outlet duct (81) and evacuation pipe (82), specifically is after heat exchanger (8) and the heat exchange of humid burner gas of pyrolysis furnace outlet duct (81) output, introduces in burner gas pipeline (3) by draught fan (31), and the humid burner gas that humid burner gas pipeline (11) was discharged is after heat exchanger (8) and the heat exchange of hot stove gas, is discharged by evacuation pipe (82).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021912052.3U CN214075826U (en) | 2020-09-04 | 2020-09-04 | High-efficient desulphurization unit of burner gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021912052.3U CN214075826U (en) | 2020-09-04 | 2020-09-04 | High-efficient desulphurization unit of burner gas |
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| Publication Number | Publication Date |
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| CN214075826U true CN214075826U (en) | 2021-08-31 |
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| CN202021912052.3U Active CN214075826U (en) | 2020-09-04 | 2020-09-04 | High-efficient desulphurization unit of burner gas |
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| CN (1) | CN214075826U (en) |
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2020
- 2020-09-04 CN CN202021912052.3U patent/CN214075826U/en active Active
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