CN210813959U - Polyaluminium chloride solution concentration tower - Google Patents
Polyaluminium chloride solution concentration tower Download PDFInfo
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- CN210813959U CN210813959U CN201921439267.5U CN201921439267U CN210813959U CN 210813959 U CN210813959 U CN 210813959U CN 201921439267 U CN201921439267 U CN 201921439267U CN 210813959 U CN210813959 U CN 210813959U
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Abstract
The utility model relates to a polyaluminium chloride solution concentrating tower, which is provided with a tower body, wherein the top of the tower body is provided with a gas outlet, a packing layer a, a packing layer b, a packing layer c and a gas distribution disc are sequentially arranged in the tower body from top to bottom, a gas-liquid separation layer is arranged between the packing layer a and the packing layer b, a gas-liquid separation layer is arranged between the packing layer b and the packing layer c, a spray pipe m and a spray pipe n are respectively arranged in the gas-liquid separation layer and the gas-liquid separation layer, and the spray pipe m and the spray pipe n are communicated with a dilute liquid polyaluminium chloride storage box together; a drying tower tail gas inlet is arranged on the side wall of the tower body below the gas distribution plate, a concentrated solution outlet is also arranged at the bottom of the side wall of the tower body, and the concentrated solution outlet is communicated with a concentrated solution storage box; the utility model discloses the heat of the preceding tail gas that the drying tower came out of make full use of uses for the concentrated usefulness of follow-up liquid polyaluminium chloride, and it is dry to get into the drying tower with the liquid polyaluminium chloride of concentration again for the production efficiency of drying tower promotes greatly.
Description
Technical Field
The utility model belongs to the technical field of chemical industry concentrator technique and specifically relates to a polyaluminium chloride solution concentrating tower.
Background
When the polyaluminium chloride product is produced, the liquid polyaluminium chloride is changed into the solid polyaluminium chloride through the treatment of the drying tower at last and can be used for sale, and if the liquid polyaluminium chloride is directly sent into the drying tower for drying treatment, obviously, the efficiency is relatively low, the energy consumption is high, and the tail gas of the drying tower is also directly treated and then discharged, so that the energy loss is caused, the production energy consumption is high, and the yield of the drying tower cannot be improved.
Disclosure of Invention
The utility model aims at providing a polyaluminium chloride solution concentration tower to above-mentioned condition, the heat of the preceding drying tower of this concentration tower make full use of comes out is used for follow-up liquid to treat the concentrated usefulness of dry polyaluminium chloride, and it is dry to get into the drying tower with concentrated liquid polyaluminium chloride again for the production efficiency of drying tower promotes greatly, has also saved the energy consumption simultaneously.
The utility model has the following concrete scheme: a polyaluminium chloride solution concentration tower is provided with a tower body, wherein the top of the tower body is provided with a gas outlet, a packing layer a, a packing layer b, a packing layer c and a gas distribution disc are sequentially arranged in the tower body from top to bottom, a gas-liquid separation layer is arranged between the packing layer a and the packing layer b, a gas-liquid separation layer is arranged between the packing layer b and the packing layer c, a spray pipe m and a spray pipe n are respectively arranged in the gas-liquid separation layer and the gas-liquid separation layer, and the spray pipe m and the spray pipe n are communicated with a dilute liquid polyaluminium chloride storage box through a pipeline and; the side wall of the tower body below the gas distribution plate is provided with a tail gas inlet of the drying tower, the bottom of the side wall of the tower body is also provided with a concentrated solution outlet, and the concentrated solution outlet is communicated with a concentrated solution storage box.
Furthermore, in the utility model, the fillers in the filler layer a, the filler layer b and the filler layer c all adopt Raschig rings to pack.
Further, in the utility model, the shower m and the shower n are annular showers or straight pipe showers.
The utility model discloses make full use of discharges out from poly aluminium chloride drying tower and has thermal high temperature tail gas and realize carrying out the concentrated processing that circulates to the more rare poly aluminium chloride solution of concentration, can make the aluminium oxide content of poly aluminium chloride can improve 2% ~ 3%, for example can improve the aluminium oxide content of poly aluminium chloride liquid from 13% to 15.5%, and carry out drying process again after poly aluminium chloride solution concentration promotes, about the corresponding promotion 20% of drying tower output meeting, energy-conserving 20% simultaneously has fine in-service use and economic value.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
In the figure: the method comprises the following steps of 1, a drying tower tail gas inlet, 2, a gas distribution disc, 3, a packing layer c, 4, a spray pipe m, 5, a packing layer b, 6, a gas outlet, 7, a packing layer a, 8, a spray pipe n, 9, a tower body, 10, a suction pump, 11, a dilute liquid polyaluminium chloride storage box and 12, a concentrated liquid storage box.
Detailed Description
Referring to fig. 1, the utility model relates to a polyaluminium chloride solution concentrating tower, has tower body 9, and the tower body top is equipped with gas outlet 6, and top-down is equipped with packing layer a7, packing layer b5 and packing layer c3 and gas distribution dish 2 in proper order in the tower body, is gas-liquid separation two layers between packing layer a and the packing layer b, is gas-liquid separation one layer between packing layer b and the packing layer c, is equipped with shower m4 and shower n8 in gas-liquid separation one layer and the gas-liquid separation two layers respectively, and shower m and shower n are linked together through pipeline and suction pump 10 and rare liquid polyaluminium chloride storage box 11; the side wall of the tower body below the gas distribution plate is provided with a tail gas inlet 1 of the drying tower, the bottom of the side wall of the tower body is also provided with a concentrated solution outlet, and the concentrated solution outlet is communicated with a concentrated solution storage box 12.
Furthermore, in this embodiment, the fillers in the filler layer a, the filler layer b and the filler layer c all adopt raschig ring fillers.
Further, in this embodiment, the spray pipe m4 and the spray pipe n8 are both annular spray pipes or straight spray pipes.
This embodiment is when using, receive the tail gas exit of drying tower with drying tower tail gas entry, then open the suction pump, the relatively more dilute polyaluminium chloride solution suction, send into shower m and shower n respectively and spray downwards, at polyaluminium chloride solution spraying in-process, the tail gas that the temperature is high flows from bottom to top and contacts with the polyaluminium chloride solution that sprays out, the heat of polyaluminium chloride solution absorption tail gas (tail gas temperature is up to 105 ℃), moisture absorption heat in the solution can vaporize and flow along with tail gas and go out from the gas outlet together, evaporate partly through this process more dilute polyaluminium chloride solution moisture, the concentration is nature just improved, reached concentrated purpose.
The gas discharged from the gas outlet cannot be directly discharged into the air, and must be treated by corresponding water washing and alkali washing processes before being discharged.
The concentration tower of this embodiment utilizes the heat of the tail gas of drying tower to carry out concentrating, has both saved the energy consumption, has reached again through carrying out drying process again with liquid polyaluminium chloride concentration and has promoted the purpose of drying tower output, has fine actual economic value.
Claims (3)
1. The utility model provides a polyaluminium chloride solution concentrating tower, has the tower body, and the tower body top is equipped with gas outlet, its characterized in that: a packing layer a, a packing layer b, a packing layer c and a gas distribution disc are sequentially arranged in the tower body from top to bottom, a gas-liquid separation layer is arranged between the packing layer a and the packing layer b, a gas-liquid separation layer is arranged between the packing layer b and the packing layer c, a spray pipe m and a spray pipe n are respectively arranged in the gas-liquid separation layer and the gas-liquid separation layer, and the spray pipe m and the spray pipe n are communicated with a dilute liquid polyaluminium chloride storage box through pipelines and a suction pump; the side wall of the tower body below the gas distribution plate is provided with a tail gas inlet of the drying tower, the bottom of the side wall of the tower body is also provided with a concentrated solution outlet, and the concentrated solution outlet is communicated with a concentrated solution storage box.
2. The polyaluminum chloride solution concentration column according to claim 1, wherein: and the fillers in the filler layer a, the filler layer b and the filler layer c are Raschig ring fillers.
3. The polyaluminum chloride solution concentration column according to claim 1, wherein: and the spray pipe m and the spray pipe n are both annular spray pipes or straight pipe spray pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921439267.5U CN210813959U (en) | 2019-09-02 | 2019-09-02 | Polyaluminium chloride solution concentration tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921439267.5U CN210813959U (en) | 2019-09-02 | 2019-09-02 | Polyaluminium chloride solution concentration tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210813959U true CN210813959U (en) | 2020-06-23 |
Family
ID=71268824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921439267.5U Active CN210813959U (en) | 2019-09-02 | 2019-09-02 | Polyaluminium chloride solution concentration tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210813959U (en) |
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2019
- 2019-09-02 CN CN201921439267.5U patent/CN210813959U/en active Active
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