CN215916909U - Acid recovery device capable of reducing water consumption - Google Patents
Acid recovery device capable of reducing water consumption Download PDFInfo
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- CN215916909U CN215916909U CN202120558440.4U CN202120558440U CN215916909U CN 215916909 U CN215916909 U CN 215916909U CN 202120558440 U CN202120558440 U CN 202120558440U CN 215916909 U CN215916909 U CN 215916909U
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- tower
- pipe
- circulating
- clear water
- venturi
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 239000002253 acid Substances 0.000 title claims abstract description 20
- 238000011084 recovery Methods 0.000 title claims abstract description 19
- 239000007921 spray Substances 0.000 claims abstract description 38
- 238000000926 separation method Methods 0.000 claims abstract description 33
- 238000005406 washing Methods 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000001816 cooling Methods 0.000 claims abstract description 26
- 241000736911 Turritella communis Species 0.000 claims description 11
- 238000004064 recycling Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 239000003595 mist Substances 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract description 20
- 238000010521 absorption reaction Methods 0.000 abstract description 11
- 238000004891 communication Methods 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 239000013505 freshwater Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000008676 import Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
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- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model discloses an acid recovery device capable of reducing water consumption, which comprises a cooling washing tower, a Venturi separation tower, a clean water pipe, a circulating spray pipe, a circulating pump, a circulating control valve, a liquid discharge pipe and a water collecting tank, wherein the clean water pipe is respectively connected with the cooling washing tower and the Venturi separation tower; wherein, the exhaust port of the cooling washing tower is communicated with the air inlet of the venturi separation tower, and the circulating spray pipe is communicated with the clean water inlet of the venturi separation tower and is provided with a communication control valve. The circulating spray pipe is communicated with the clean water inlet of the venturi separation tower, the communicating control valve is arranged, and circulating washing water in the circulating spray pipe can be introduced into the venturi separation tower by controlling the communicating control valve, so that the using amount of fresh clean water is reduced, the acidity of hydrochloric acid in absorption liquid is increased, and the absorption efficiency of dust in gas phase recovery is improved.
Description
Technical Field
The utility model relates to the technical field of waste acid recycling, in particular to an acid recycling device capable of reducing water consumption.
Background
At present, most of waste hydrochloric acid is recovered by adopting a forward flow heating spray roasting method, HCL gas generated by roasting is cooled, sprayed and absorbed to form hydrochloric acid for recycling, and in the process of HCL gas spraying and absorption, fresh water is basically adopted for spraying and absorption, so that although the HCL content in the gas can be reduced, the water consumption is high, and meanwhile, the acidity of liquid after absorbing the HCL gas is not high, so that the waste of the fresh water is caused, and the recycling of the hydrochloric acid is not facilitated. Accordingly, there is a need for those skilled in the art to provide a means for effectively conserving fresh water and increasing the acidity of the recovered hydrochloric acid.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the acid recovery device capable of reducing the water consumption is provided, the fresh water quantity required by the hydrochloric acid in the recovery process is reduced, meanwhile, the acidity of the recovered hydrochloric acid liquid is improved, and the dust absorption efficiency in gas phase recovery is improved.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
an acid recovery device capable of reducing water consumption comprises a cooling washing tower, a Venturi separation tower, a clear water pipe, a circulating spray pipe, a circulating pump and a circulating control valve, a liquid discharge pipe and a collecting water tank, wherein the clear water pipe is respectively connected with the cooling washing tower and the Venturi separation tower and used for providing clear water spray; the air outlet of the cooling washing tower is communicated with the air inlet of the venturi separation tower through a first communicating pipe, the circulating spray pipe is communicated with the clean water inlet of the venturi separation tower through a second communicating pipe, and the second communicating pipe is provided with a communicating control valve for control; and clear water inlets of the cooling washing tower and the venturi separation tower are respectively provided with a clear water control valve for controlling clear water supply.
Furthermore, the circulating spray pipe is communicated with the water collecting tank, and a liquid discharge control valve is arranged on a pipeline communicated with the circulating spray pipe.
Further, the cooling washing tower with the venturi separation tower structure is the same, all includes the tower casing, set up in on the tower casing and with the clear water import that the clear water pipe links to each other, set up in the tower casing and with the shower nozzle that the clear water import links to each other, set up in tower casing lower part is used for the intercommunication to retrieve the gaseous air inlet of acid, and set up in on the tower casing and be used for gas-liquid separation's gas outlet and liquid outlet.
Furthermore, the spray heads are arranged in a plurality and are uniformly distributed on the top of the inner cavity of the tower shell.
Further, the spray head is a water mist spray head.
Compared with the prior art, the utility model has the following beneficial effects:
(1) when HCL gas is recovered, firstly, a part of HCL gas is recovered through cooling washing of a cooling washing tower, the formed acid liquor circularly cools and washes the subsequently entered gas through a circulating pump, the gas which is not completely absorbed enters a Venturi separation tower, and the acid liquor is formed through further absorption of fresh clear water and enters a water collecting tank.
(2) The spray head provided by the utility model adopts a water mist spray head, so that the using amount of water is reduced, meanwhile, the contact area of spray water and recovered gas can be greatly increased, and the recovery efficiency of hydrochloric acid is further improved.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Wherein, the names corresponding to the reference numbers are:
1-a cooling washing tower, 2-a Venturi separation tower, 3-a clean water pipe, 4-a circulating spray pipe, 5-a ring pump, 6-a liquid discharge pipe, 7-a collection water tank, 8-a first communicating pipe, 9-a second communicating pipe, 10-a communication control valve, 11-a clean water control valve, 12-a liquid discharge control valve and 13-a circulating control valve.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
As shown in fig. 1:
an acid recovery device capable of reducing water consumption is used for reducing the consumption of fresh spray water, increasing the acidity of recovered hydrochloric acid liquid and improving the dust absorption efficiency in gas phase recovery in the hydrochloric acid recovery process. The specific structural form comprises two stages of absorption and recovery towers, namely a cooling washing tower 1 and a venturi separation tower 2, wherein the cooling washing tower 1 is used for absorbing and washing HCL generated by a spray roasting method, and the venturi separation tower 2 is used for further spraying, absorbing and recovering HCL gas which is not fully absorbed after passing through the cooling washing tower 1.
The cooling washing tower 1 and the venturi separation tower 2 have the same structure and respectively comprise a tower shell, a clear water inlet which is arranged on the tower shell and is connected with a clear water pipe 3, a spray head which is arranged in the tower shell and is connected with the clear water inlet, an air inlet which is arranged at the lower part of the tower shell and is used for communicating and recovering acid gas, and an air outlet and a liquid outlet which are arranged on the tower shell and are used for gas-liquid separation. The gas inlet of air inlet gets into to the tower casing in to absorb gas through shower nozzle spun water, make it form sour liquid, spray the absorption for better acid gas with the air inlet entering, the shower nozzle in the tower casing is provided with a plurality ofly, and evenly distributed in the inner chamber top of tower casing, simultaneously, preferably, the shower nozzle chooses for use the water smoke shower nozzle.
When the connection is carried out, the clean water pipeline 3 is respectively connected with the clean water inlets of the washing tower 1 and the venturi separation tower 2, and the clean water control valves 11 are arranged at the positions of the clean water inlets and are used for controlling the amount of the clean water; the cooling washing tower 1 is provided with a circulating spray pipe 4, the circulating spray pipe 4 is provided with a circulating pump 5 and a circulating control valve 13, the circulating spray pipe 4 is communicated with a clear water inlet of the cooling washing tower 1, and cooling circulating washing absorption of water quantity can be realized by starting the circulating pump 5.
The venturi separation tower 2 is provided with a liquid discharge pipe 6 and used for discharging liquid absorbing HCL gas, the liquid discharge pipe 6 is communicated with the collecting water tank 7, meanwhile, the circulating spray pipe 4 is also communicated with the collecting water tank 7, a corresponding liquid discharge control valve 12 is arranged for the circulating spray pipe, and the direct discharge of the liquid in the circulating spray pipe can be realized by controlling the liquid discharge control valve.
In order to realize better absorption and recovery of HCL gas, an exhaust port of the cooling washing tower 1 is communicated with an air inlet of the Venturi separation tower 2 through a first communication pipe 8; in order to better save the consumption of fresh clean water, the circulating spray pipe 4 is communicated with a clean water inlet of the venturi separation tower 2 through a second communicating pipe 9, and a communicating control valve 10 for control is arranged on the second communicating pipe 9; through the communication control valve, the water quantity of the circulating spray pipe entering the venturi separation tower 2 can be effectively adjusted, so that the fresh water consumption for spraying and absorbing of the venturi separation tower is reduced, and the acidity of other acid liquids for absorbing and recovering HCL is improved.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or changes made within the spirit and scope of the main design of the present invention, which still solve the technical problems consistent with the present invention, should be included in the scope of the present invention.
Claims (5)
1. An acid recovery device capable of reducing water consumption is characterized in that: the device comprises a cooling washing tower (1), a Venturi separation tower (2), a clear water pipe (3) which is respectively connected with the cooling washing tower (1) and the Venturi separation tower (2) and used for providing clear water for spraying, a circulating spray pipe (4) which is arranged on the cooling washing tower (1) and is connected with a clear water inlet of the cooling washing tower, a circulating pump (5) and a circulating control valve (13) which are arranged on the circulating spray pipe (4), a liquid discharge pipe (6) which is arranged on the Venturi separation tower (2), and a water collection tank (7) which is connected with the liquid discharge pipe (6); wherein, the exhaust port of the cooling washing tower (1) is communicated with the air inlet of the venturi separation tower (2) through a first communicating pipe (8), the circulating spray pipe (4) is communicated with the clean water inlet of the venturi separation tower (2) through a second communicating pipe (9), and the second communicating pipe (9) is provided with a communicating control valve (10) for control; and clear water inlets of the cooling washing tower (1) and the venturi separation tower (2) are respectively provided with a clear water control valve (11) for controlling clear water supply.
2. The acid recovery device capable of reducing water consumption according to claim 1, wherein: the circulating spray pipe (4) is communicated with the water collecting tank (7), and a liquid discharge control valve (12) is arranged on a pipeline communicated with the circulating spray pipe.
3. The acid recovery device capable of reducing water consumption according to claim 2, wherein: the cooling washing tower (1) and the venturi separation tower (2) are identical in structure and respectively comprise a tower shell, a clear water inlet, a spray head, an air inlet, an air outlet and a liquid outlet, wherein the clear water inlet is formed in the tower shell and connected with the clear water pipe (3), the spray head is arranged in the tower shell and connected with the clear water inlet, the air inlet is formed in the lower portion of the tower shell and used for communicating and recycling acid gas, and the air outlet and the liquid outlet are formed in the tower shell and used for gas-liquid separation.
4. The acid recovery device capable of reducing water consumption according to claim 3, wherein: the shower nozzle be provided with a plurality ofly, and evenly distributed in the inner chamber top of tower casing.
5. The acid recovery device capable of reducing water consumption according to claim 4, wherein: the spray head is a water mist spray head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120558440.4U CN215916909U (en) | 2021-03-18 | 2021-03-18 | Acid recovery device capable of reducing water consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120558440.4U CN215916909U (en) | 2021-03-18 | 2021-03-18 | Acid recovery device capable of reducing water consumption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215916909U true CN215916909U (en) | 2022-03-01 |
Family
ID=80409973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120558440.4U Active CN215916909U (en) | 2021-03-18 | 2021-03-18 | Acid recovery device capable of reducing water consumption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215916909U (en) |
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2021
- 2021-03-18 CN CN202120558440.4U patent/CN215916909U/en active Active
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