CN205391950U - Device is used multipurposely to tail gas - Google Patents
Device is used multipurposely to tail gas Download PDFInfo
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- CN205391950U CN205391950U CN201521111732.4U CN201521111732U CN205391950U CN 205391950 U CN205391950 U CN 205391950U CN 201521111732 U CN201521111732 U CN 201521111732U CN 205391950 U CN205391950 U CN 205391950U
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- air
- tail gas
- direct combustion
- desulfurizing tower
- tower
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Abstract
The utility model belongs to the technical field of the tail gas treatment, including desulfurizing tower, direct combustion formula hot -blast furnace and drying tower, direct combustion formula hot -blast furnace includes coal firing machine, the exhanst gas outlet of desulfurizing tower pass through flue gas return line with coal firing machine's air intake is linked together, flue gas return line still links there is air feed pipe, the air outlet of direct combustion formula hot -blast furnace pass through hot -air pipes with the drying tower is linked together. The utility model provides a device is used multipurposely to tail gas can utilize in the desulfurizing tower exhaust tail gas for direct combustion formula hot -blast furnace air distribution, the air intake splits when avoiding using the air air distribution problem, and it is extravagant to reduce the energy simultaneously, has still reduced the pollution to the environment.
Description
Technical field
This utility model belongs to tail gas disposal technique field, is specifically related to a kind of tail gas comprehensive utilization device.
Background technology
In aluminium polychlorid produces, the tail gas that heat exchange type air stove produces enters desulfurizing tower from exhaust port, is discharged in air after desulfurizing tower processes again.Owing to tail gas contains great amount of carbon dioxide, a small amount of sulfur dioxide and nitrogen oxides and the temperature of tail gas about 180 DEG C, directly discharge causes environmental pollution also can waste the energy.When direct combustion hotblast stove provides clean flue gas for drying tower, it is necessary to promote coal combustion for coal burning machine air distribution, generally utilize air at present, but owing to air themperature is low, air from coal burning machine air inlet enter time, owing to the temperature difference too conference causes coal burning machine air inlet to split, affect service life of equipment.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of tail gas comprehensive utilization device, to solve the technical problem that direct combustion hotblast stove utilizes air air distribution and causes air inlet to ftracture, both reduce the tail gas pollution to environment, decreased energy loss, also improve burning of coal rate.
For solving above-mentioned technical problem, the technical solution of the utility model is:
A kind of tail gas comprehensive utilization device, including desulfurizing tower, direct combustion hotblast stove and drying tower, described direct combustion hotblast stove includes coal burning machine；
The exhanst gas outlet of described desulfurizing tower is connected by the air inlet of off-gas recovery pipeline with described coal burning machine, and described off-gas recovery pipeline is also connected with airflow pipe；The air outlet of described direct combustion hotblast stove is connected with described drying tower by hot air duct.
As a kind of improved plan, the gas approach of described desulfurizing tower is connected with cleaner by flue, and described cleaner is desulfurizing dust-collector.
As a kind of improved plan, described flue is provided with air-introduced machine.
As a kind of improved plan, described direct combustion hotblast stove also includes the expansion chamber and the wind mixed chamber that are sequentially communicated with the air outlet of described coal burning machine, and the air outlet of described wind mixed chamber is connected with drying tower by hot air duct.
After have employed technique scheme, the beneficial effects of the utility model are:
Owing to the exhanst gas outlet of desulfurizing tower is connected with the air inlet of coal burning machine by off-gas recovery pipeline, off-gas recovery pipeline is also connected with airflow pipe；The air outlet of direct combustion hotblast stove is connected with drying tower by hot air duct.Tail gas is after desulfurizing tower processes, containing a small amount of sulfur dioxide in tail gas, nitrogen oxides, substantial amounts of carbon dioxide, and the temperature of tail gas are at about 180 DEG C, it is its air distribution that tail gas enters in coal burning machine along off-gas recovery pipeline, promoting coal combustion, it is the problem that its air distribution causes that because of the temperature difference air inlet splits that this set is avoided using air, reduces energy loss, improve burning of coal rate, also reduce the tail gas pollution to environment simultaneously.
Owing to the gas approach of desulfurizing tower is connected with cleaner by flue, cleaner is desulfurizing dust-collector.Utilize desulfurizing dust-collector can remove the dust in tail gas and a small amount of sulfur dioxide, reduce the pollution to environment.
Owing to flue is provided with air-introduced machine.Can promote that tail gas enters in desulfurizing tower by air-introduced machine.
Also include expansion chamber and wind mixed chamber that the air outlet with coal burning machine is sequentially communicated due to direct combustion hotblast stove, the air outlet of wind mixed chamber is connected with drying tower by hot air duct.The high-temperature flue gas produced after coal burning machine fire coal enters in expansion chamber, through the second-time burning of the sedimentation of expansion chamber and dust, produces clean flue gas, and clean flue gas enters in wind mixed chamber subsequently, enters in drying tower finally along hot air duct and aluminium polychlorid is dried.
Accompanying drawing explanation
Fig. 1 is this utility model one tail gas comprehensive utilization device structural representation；
Wherein, 1-desulfurizing tower, 2-coal burning machine, 3-off-gas recovery pipeline, 4-flue, 5-desulfurizing dust-collector, 6-airflow pipe, 7-air-introduced machine, 8-hot air duct, 9-drying tower, 10-expansion chamber, 11-wind mixed chamber.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.
As it is shown in figure 1, a kind of tail gas comprehensive utilization device, including desulfurizing tower 1, direct combustion hotblast stove and drying tower 9, direct combustion hotblast stove includes coal burning machine 2；The exhanst gas outlet of desulfurizing tower 1 is connected by the air inlet of off-gas recovery pipeline 3 with coal burning machine 2, and off-gas recovery pipeline 3 is also connected with airflow pipe 6；The air outlet of direct combustion hotblast stove is connected with drying tower 9 by hot air duct 8.
Operation principle of the present utility model, the tail gas that heat exchange type air stove is discharged enters in desulfurizing dust-collector 5 by flue, the dust granules contained in tail gas and a small amount of sulfur dioxide can be removed through processing, tail gas enters in desulfurizing tower 1 along flue 4 under the effect of air-introduced machine 7 subsequently, calcium carbonate serosity is sprayed by the spray equipment in desulfurizing tower 1, itself and tail gas is made to be fully contacted, remove the sulfur dioxide in tail gas, tail gas enters in the coal burning machine 2 of direct-combustion hot air machine again through off-gas recovery pipeline 3, for its air distribution, then the high temperature clean flue gas that direct combustion hotblast stove produces is entered in drying tower by hot air duct and aluminium polychlorid is dried.Owing to exhaust temperature is at about 180 DEG C, the air inlet of coal burning machine 2 can be avoided to ftracture, reduce energy loss, and reduce the tail gas pollution to environment.
Improving as one, the gas approach of desulfurizing tower 1 is connected with cleaner by flue 4, and cleaner is desulfurizing dust-collector 5.The tail gas that heat exchange type air stove is discharged enters desulfurizing dust-collector 5, can remove the dust in tail gas and a small amount of sulfur dioxide, reduce the pollution to environment, is conducive to the desulfurizing tower 1 further process to tail gas simultaneously.
Improving as one, flue 4 is provided with air-introduced machine 7.Can promote that tail gas enters in desulfurizing tower 1 by air-introduced machine 7.
Improving as one, direct combustion hotblast stove also includes the expansion chamber 10 and the wind mixed chamber 11 that are sequentially communicated with the air outlet of coal burning machine 2, and the air outlet of wind mixed chamber 11 is connected with drying tower 9 by hot air duct 8.The high-temperature flue gas that desulfurizing tower 1 is discharged is for coal burning machine 2 air distribution, promote coal combustion and then produce high-temperature flue gas, high-temperature flue gas enters in expansion chamber 10 subsequently, in expansion chamber, dust settling, and through second-time burning, high temperature clean flue gas can be produced, high temperature clean flue gas enters in wind mixed chamber 11 subsequently, enters in drying tower 9 finally along hot air duct 8 and aluminium polychlorid is dried.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent replacement and improvement etc. made within spirit of the present utility model and principle, should be included within protection domain of the present utility model.
Claims (4)
1. a tail gas comprehensive utilization device, it is characterised in that: including desulfurizing tower, direct combustion hotblast stove and drying tower, described direct combustion hotblast stove includes coal burning machine；
The exhanst gas outlet of described desulfurizing tower is connected by the air inlet of off-gas recovery pipeline with described coal burning machine, and described off-gas recovery pipeline is also connected with airflow pipe；The air outlet of described direct combustion hotblast stove is connected with described drying tower by hot air duct.
2. a kind of tail gas comprehensive utilization device according to claim 1, it is characterised in that: the gas approach of described desulfurizing tower is connected with cleaner by flue, and described cleaner is desulfurizing dust-collector.
3. a kind of tail gas comprehensive utilization device according to claim 2, it is characterised in that: described flue is provided with air-introduced machine.
4. a kind of tail gas comprehensive utilization device according to claim 1, it is characterized in that: described direct combustion hotblast stove also includes the expansion chamber and the wind mixed chamber that are sequentially communicated with the air outlet of described coal burning machine, and the air outlet of described wind mixed chamber is connected with drying tower by hot air duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521111732.4U CN205391950U (en) | 2015-12-28 | 2015-12-28 | Device is used multipurposely to tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521111732.4U CN205391950U (en) | 2015-12-28 | 2015-12-28 | Device is used multipurposely to tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205391950U true CN205391950U (en) | 2016-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521111732.4U Active CN205391950U (en) | 2015-12-28 | 2015-12-28 | Device is used multipurposely to tail gas |
Country Status (1)
| Country | Link |
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| CN (1) | CN205391950U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109621839A (en) * | 2018-12-22 | 2019-04-16 | 新疆阜丰生物科技有限公司 | A method of producing fertilizer and processing tail gas |
-
2015
- 2015-12-28 CN CN201521111732.4U patent/CN205391950U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109621839A (en) * | 2018-12-22 | 2019-04-16 | 新疆阜丰生物科技有限公司 | A method of producing fertilizer and processing tail gas |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |