CN212575986U - Tail gas recovery system for leaching process - Google Patents
Tail gas recovery system for leaching process Download PDFInfo
- Publication number
- CN212575986U CN212575986U CN202020945870.7U CN202020945870U CN212575986U CN 212575986 U CN212575986 U CN 212575986U CN 202020945870 U CN202020945870 U CN 202020945870U CN 212575986 U CN212575986 U CN 212575986U
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- CN
- China
- Prior art keywords
- absorption tower
- cooling
- biological
- recovery system
- absorption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000011084 recovery Methods 0.000 title claims abstract description 30
- 238000002386 leaching Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000010521 absorption reaction Methods 0.000 claims abstract description 107
- 238000001816 cooling Methods 0.000 claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 14
- 230000002378 acidificating effect Effects 0.000 claims description 8
- 239000002253 acid Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 60
- 239000000498 cooling water Substances 0.000 description 10
- 239000000126 substance Substances 0.000 description 7
- 239000000110 cooling liquid Substances 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000012445 acidic reagent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model discloses a tail gas recovery system for a leaching process, which comprises a cooling absorption tower, wherein the cooling absorption tower adopts a cylindrical structure, a water flow layer is sleeved outside the cooling absorption tower, and a cooling tank is arranged at the bottom of the cooling absorption tower; the biological absorption tower is arranged on one side of the cooling absorption tower, and the bottom of the biological absorption tower is provided with a biological decomposition tank; and a remaining absorption tower, it sets up in the biological absorption tower one side of keeping away from the cooling absorption tower, and its bottom is provided with alkaline absorption jar, and alkaline absorption jar one side is provided with the acid absorption groove, the utility model is suitable for a carry out recycle to the tail gas in the process of leaching, can retrieve tail gas by safe efficient more.
Description
Technical Field
The utility model belongs to the technical field of the tail gas recovery, specifically a tail gas recovery system for leaching process.
Background
The tail gas recovery is a device for purifying the tail gas under the action of a catalyst so as to reduce the pollution to the environment, when high-temperature waste gas flows through a carrier coated with a catalyst made of a noble metal material, harmful substances in the waste gas, including CO and HC odor and DPM black smoke are subjected to chemical reaction under the action of the catalyst and the temperature, and are converted into nontoxic H2O and CO 2.
The tail gas recovery system for the leaching process is a device for absorbing tail gas generated in the leaching process, the tail gas recovery system of the existing leaching process adopts spraying cooling, high-temperature gas is easy to generate vapor, the temperature in the whole device is not reduced, the tail gas of the existing device is directly discharged after being biologically absorbed, residues are easy to generate, the conversion rate is recovered, and the environment is polluted.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide a tail gas recovery system for leaching the process.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a tail gas recovery system for a leaching process comprises a cooling absorption tower, wherein the cooling absorption tower adopts a cylindrical structure, a water flow layer is sleeved on the outer side of the cooling absorption tower, and a cooling tank is arranged at the bottom of the cooling absorption tower; the biological absorption tower is arranged on one side of the cooling absorption tower, and a biological decomposition tank is arranged at the bottom of the biological absorption tower; and the residual absorption tower is arranged on one side of the biological absorption tower, which is far away from the cooling absorption tower, the bottom of the residual absorption tower is provided with an alkaline absorption cylinder, and one side of the alkaline absorption cylinder is provided with an acidic absorption tank.
Preferably, the top of the alkaline absorption cylinder is provided with a plug cover, the plug cover is provided with two pipe holes, the bottom of the plug cover is provided with a clamping block, the top of the alkaline absorption cylinder is provided with a clamping groove, and the clamping block is clamped in the clamping groove.
Preferably, the cooling absorption tower, the biological absorption tower and the upper end of one side of the residual absorption tower are all provided with air inlets, the lower end of the other side of the cooling absorption tower and the biological absorption tower is all provided with air outlets, and the upper side of the other side of the residual absorption tower is provided with a tail gas discharge hole.
Preferably, a water inlet is formed in one side, close to the air outlet, of the water flow layer, and a water outlet is formed in one side, close to the air inlet, of the water flow layer.
Preferably, a culture solution is arranged in the biological decomposition tank, and a biological film layer is arranged above the culture solution.
Preferably, an exhaust fan is arranged at the exhaust gas discharge hole, and the exhaust fan is clamped in the exhaust gas discharge hole.
The utility model relates to a tail gas recovery system for leaching process, which is provided with a water flow layer by the outer side of a cooling absorption tower, thereby realizing the effect of accelerating the heat exchange between the inside of the cooling absorption tower and the outside and reducing the temperature more quickly;
the utility model relates to a tail gas recovery system for leaching process through setting up remaining absorption tower, has realized that recovery tail gas has higher recovery conversion rate, environmental protection's effect.
Drawings
FIG. 1 is a cross-sectional view of a tail gas recovery system for a leaching process of the present invention;
FIG. 2 is a side view of a tail gas recovery system for a leaching process of the present invention;
figure 3 is a top view of the tail gas recovery system for the leaching process of the present invention.
Reference numerals: 1. cooling the absorption tower; 2. a biological absorption tower; 3. a residual absorber; 4. a water flow layer; 5. a cooling tank; 6. a biological decomposition tank; 7. an alkaline absorption cylinder; 8. an acidic absorption tank; 9. a water inlet; 10. a water outlet; 11. a biofilm layer; 12. a plug cover; 13. an exhaust fan.
Detailed Description
The following will further describe a specific embodiment of a tail gas recovery system for a leaching process according to the present invention with reference to fig. 1 to 3. The present invention relates to a tail gas recovery system for a leaching process, which is not limited to the description of the following embodiments.
Example 1:
the embodiment provides a specific structure of a tail gas recovery system for a leaching process, and as shown in fig. 1-3, the tail gas recovery system comprises a cooling absorption tower 1 which adopts a cylindrical structure, a water flow layer 4 is sleeved outside the cooling absorption tower 1, and a cooling tank 5 is arranged at the bottom of the cooling absorption tower 1; a biological absorption tower 2 arranged at one side of the cooling absorption tower 1, wherein the bottom of the biological absorption tower 2 is provided with a biological decomposition tank 6; and a residual absorption tower 3 which is arranged on one side of the biological absorption tower 2 far away from the cooling absorption tower 1, the bottom of the residual absorption tower is provided with an alkaline absorption cylinder 7, and one side of the alkaline absorption cylinder 7 is provided with an acidic absorption tank 8.
The inlet port has all been seted up to cooling absorption tower 1, biological absorption tower 2 and 3 one side upper ends of remaining absorption tower, and the venthole has all been seted up to cooling absorption tower 1, 2 opposite side lower extremes of biological absorption tower, and the tail gas discharge hole has been seted up to 3 opposite side tops of remaining absorption tower.
A water inlet 9 is arranged on one side of the water flow layer 4 close to the air outlet, and a water outlet 10 is arranged on one side of the water flow layer 4 close to the air inlet.
By adopting the technical scheme:
tail gas leads to cooling liquid bottom in the cooling tank 5 from the inlet port of cooling absorption tower 1 through the pipeline, the cooling part liquid body through the cooling liquid evaporates and makes vapor, the temperature in the cooling absorption tower 1 rises, open the cooling water switch, cooling water lets in from water inlet 9, upwards stretch always, reach the position that flushes with delivery port 10 until the water level, rivers layer 4 is full of cooling water this moment, cooling absorption tower 1 cools down through exchanging the heat with rivers layer 4, the cooling water temperature constantly risees in rivers layer 4, the cooling water that heaies up constantly discharges from delivery port 10, so reciprocal, cooling absorption tower 1 lasts the cooling, tail gas rises from cooling tank 5 notch after exchanging the heat with the cooling liquid, discharge from the gas outlet of cooling absorption tower 1.
Example 2:
in this embodiment, a specific structure of a tail gas recovery system for a leaching process is provided, as shown in fig. 1 to 3, a plug cap 12 is disposed at the top of an alkaline absorption cylinder 7, two pipe holes are formed in the plug cap 12, a clamping block is disposed at the bottom of the plug cap 12, a clamping groove is formed at the top of the alkaline absorption cylinder 7, and the clamping block is clamped in the clamping groove.
The biological decomposition tank 6 is internally provided with a culture solution, and a biological film layer 11 is arranged above the culture solution.
An exhaust fan 13 is arranged at the exhaust gas discharge hole, and the exhaust fan 13 is clamped in the exhaust gas discharge hole.
By adopting the technical scheme:
the cooled tail gas is conveyed to the bottom of a biological decomposition tank 6 from a gas outlet of a cooling absorption tower 1 through a gas inlet of a biological absorption tower 2 by a pipeline, the tail gas is upwards diffused from the bottom of the biological decomposition tank 6, a biological film layer 11 is arranged at a notch of the biological decomposition tank 6, the tail gas is absorbed and decomposed by the biological film layer, decomposed residual gas is conveyed into an alkaline absorption cylinder 7 from a gas outlet of the biological absorption tower 2 through a gas inlet of a residual absorption tower 3 by the pipeline, acidic substances in the residual gas are absorbed by alkaline substances in the alkaline absorption cylinder 7, the residual gas enters an acidic absorption tank 8 through the pipeline, the alkaline substances in the residual gas are absorbed by an acidic reagent, only the remaining harmless gas is discharged into the atmosphere through a tail gas discharge hole, an exhaust fan 13 accelerates the gas to enter the atmosphere, and the recovery process is.
The working principle is as follows: as shown in fig. 1-3, firstly, the tail gas is introduced from the air inlet of the cooling absorption tower 1 to the bottom of the cooling liquid in the cooling tank 5 through a pipeline, the liquid is evaporated to form steam through the cooling part of the cooling liquid, the temperature in the cooling absorption tower 1 rises, the cooling water switch is opened, the cooling water is introduced from the water inlet 9 and spreads upward until the water level reaches the position flush with the water outlet 10, at this time, the water flow layer 4 is filled with the cooling water, the cooling absorption tower 1 cools through exchanging heat with the water flow layer 4, the temperature of the cooling water in the water flow layer 4 rises continuously, the heated cooling water is continuously discharged from the water outlet 10, and in such a reciprocating manner, the cooling absorption tower 1 continuously cools, the tail gas rises from the notch of the cooling tank 5 after exchanging heat with the cooling liquid and is discharged from the air outlet of the cooling absorption tower 1, then, the cooled tail gas is conveyed from the air outlet of the cooling absorption tower 1 to the bottom of the biological decomposition tank 6 through the, tail gas upwards diffuses from the bottom of the biological decomposition tank 6, a biological film layer 11 is arranged at the notch of the biological decomposition tank 6, the tail gas is absorbed and decomposed by the biological film layer, decomposed residual gas is conveyed into the alkaline absorption cylinder 7 from the gas outlet of the biological absorption tower 2 through the gas inlet of the residual absorption tower 3 through a pipeline, finally, acidic substances in the residual gas are absorbed by alkaline substances in the alkaline absorption cylinder 7, the residual gas enters the acidic absorption tank 8 through a pipeline, the alkaline substances in the residual gas are absorbed by an acidic reagent, only harmless gas is left and discharged into the atmosphere through a tail gas discharge hole, the gas is accelerated to enter the atmosphere through the exhaust fan 13, and the recovery process is completed.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (6)
1. An off-gas recovery system for a leaching process, comprising:
the cooling absorption tower (1) adopts a cylindrical structure, a water flow layer (4) is sleeved on the outer side of the cooling absorption tower (1), and a cooling tank (5) is arranged at the bottom of the cooling absorption tower (1);
the biological absorption tower (2) is arranged on one side of the cooling absorption tower (1), and a biological decomposition tank (6) is arranged at the bottom of the biological absorption tower (2); and
the residual absorption tower (3) is arranged on one side, away from the cooling absorption tower (1), of the biological absorption tower (2), an alkaline absorption cylinder (7) is arranged at the bottom of the residual absorption tower, and an acidic absorption tank (8) is arranged on one side of the alkaline absorption cylinder (7).
2. An off-gas recovery system for a leaching process according to claim 1, wherein: the top of the alkaline absorption cylinder (7) is provided with a plug cover (12), the plug cover (12) is provided with two pipe holes, the bottom of the plug cover (12) is provided with a clamping block, the top of the alkaline absorption cylinder (7) is provided with a clamping groove, and the clamping block is clamped in the clamping groove.
3. An off-gas recovery system for a leaching process according to claim 1, wherein: the cooling absorption tower (1), biological absorption tower (2) and remaining absorption tower (3) one side upper end has all seted up the inlet port, the venthole has all been seted up to cooling absorption tower (1) biological absorption tower (2) opposite side lower extreme, the tail gas discharge hole has been seted up to remaining absorption tower (3) opposite side top.
4. An off-gas recovery system for a leaching process according to claim 3, wherein: a water inlet (9) is formed in one side, close to the air outlet, of the water flow layer (4), and a water outlet (10) is formed in one side, close to the air inlet, of the water flow layer (4).
5. An off-gas recovery system for a leaching process according to claim 1, wherein: a culture solution is arranged in the biological decomposition tank (6), and a biological film layer (11) is arranged above the culture solution.
6. An off-gas recovery system for a leaching process according to claim 3, wherein: an exhaust fan (13) is arranged at the exhaust gas discharge hole, and the exhaust fan (13) is clamped in the exhaust gas discharge hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020945870.7U CN212575986U (en) | 2020-05-29 | 2020-05-29 | Tail gas recovery system for leaching process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020945870.7U CN212575986U (en) | 2020-05-29 | 2020-05-29 | Tail gas recovery system for leaching process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212575986U true CN212575986U (en) | 2021-02-23 |
Family
ID=74642427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020945870.7U Expired - Fee Related CN212575986U (en) | 2020-05-29 | 2020-05-29 | Tail gas recovery system for leaching process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212575986U (en) |
-
2020
- 2020-05-29 CN CN202020945870.7U patent/CN212575986U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210223 |