CN216498524U - Novel high-efficient hydrochloric acid tail gas is retrieved device - Google Patents
Novel high-efficient hydrochloric acid tail gas is retrieved device Download PDFInfo
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- CN216498524U CN216498524U CN202122569601.2U CN202122569601U CN216498524U CN 216498524 U CN216498524 U CN 216498524U CN 202122569601 U CN202122569601 U CN 202122569601U CN 216498524 U CN216498524 U CN 216498524U
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Abstract
The utility model discloses a novel high-efficiency hydrochloric acid tail gas recovery device which comprises a primary falling film absorber, a secondary falling film absorber, a tertiary falling film absorber, a water washing tower, an alkali liquor absorption tower and an exhaust device, wherein the secondary falling film absorber is arranged on the right side of the primary falling film absorber, the tertiary falling film absorber is arranged on the right side of the secondary falling film absorber, the water washing tower is arranged on the right side of the tertiary falling film absorber, the alkali liquor absorption tower is arranged on the right side of the water washing tower, and the exhaust device is arranged on the right side of the alkali liquor absorption tower. The utility model fully removes the hydrochloric acid tail gas through the processes of collection, falling film absorption, water absorption, alkali absorption and the like, thereby realizing the green and non-waste production process.
Description
Technical Field
The utility model relates to the field of waste gas treatment devices, in particular to a novel efficient hydrochloric acid recovery device.
Background
At present, most workshops of chemical manufacturers generate high-concentration hydrochloric acid waste gas in the production process, and the high-concentration hydrochloric acid waste gas generated in the workshops can influence the operation environment of workshop workers and the environment of a factory area to a certain extent if the high-concentration hydrochloric acid waste gas is not collected and treated. The environmental protection work is further well done, and the influence on the factory area and the surrounding atmospheric environment is avoided. Therefore, it is necessary to develop a new waste gas treatment process with easy operation, low investment and operation cost, and the efficiency of the prior art for treating the high-concentration hydrochloric acid waste gas is too low or the effect is not good, so that a novel high-efficiency hydrochloric acid recovery device is necessary to realize high-efficiency treatment of the high-concentration hydrochloric acid waste gas and good treatment effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a novel efficient hydrochloric acid recovery device which can realize efficient treatment of high-concentration hydrochloric acid waste gas and has a good treatment effect.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a novel high-efficient hydrochloric acid tail gas recovery device, includes one-level falling film absorber, second grade falling film absorber, tertiary falling film absorber, water washing tower, alkali liquor absorption tower, exhaust apparatus, second grade falling film absorber sets up on one-level falling film absorber right side, tertiary falling film absorber sets up on second grade falling film absorber right side, water washing tower sets up on tertiary falling film absorber right side, alkali liquor absorption tower sets up on water washing tower right side, exhaust apparatus sets up on alkali liquor absorption tower right side.
Further, the first-stage falling film absorber comprises a plurality of first human-hole sight glasses, a first medicine feeding port, a first water pump inlet, a first sewage discharge port, a first air inlet, a first air outlet, a first demisting layer, a first packing layer and a plurality of first spraying devices, the first plurality of the human-hole sight glasses are arranged on the left side of the primary falling film absorber, a first medicine adding port is arranged on the left side of the lower end of the primary falling film absorber, the lower end of the first dosing port is provided with a first water pump inlet, the front end of the first-stage falling film absorber is provided with a first sewage discharge port, a first demisting layer is arranged at the upper end of the outer part of the first-stage falling film absorber, a first filler layer is arranged in the middle of the outer part of the first-stage falling film absorber, the upper end of the first-stage falling film absorber is provided with a plurality of first spraying devices, the lower end of the first-stage falling film absorber is provided with a first air inlet, and the upper end of the first-stage falling film absorber is provided with a first air outlet.
Further, the two-stage falling film absorber comprises a plurality of second manhole sight glasses, a second medicine adding port, a second water pump inlet, a second sewage outlet, a second air inlet, a second air outlet, a second demisting layer, a second packing layer and a plurality of second spraying devices, the plurality of second manhole sight glass is arranged at the left side of the secondary falling film absorber, a second medicine adding port is arranged at the left side of the lower end of the secondary falling film absorber, the lower end of the second medicine feeding port is provided with a second water pump inlet, the front end of the secondary falling film absorber is provided with a second sewage draining outlet, a second demisting layer is arranged at the upper end of the outside of the second-stage falling film absorber, a second filler layer is arranged in the middle of the outside of the second-stage falling film absorber, the upper end of the second-stage falling film absorber is provided with a plurality of second spraying devices, the lower end of the second-stage falling film absorber is provided with a second air inlet, and the upper end of the second-stage falling film absorber is provided with a second air outlet.
Further, the three-stage falling film absorber comprises a plurality of third manhole sight glasses, a third medicine feeding port, a third water pump inlet, a third sewage discharge port, a third air inlet, a third air outlet, a third demisting layer, a third packing layer and a plurality of third spraying devices, the plurality of third manhole sight glass is arranged at the left side of the three-stage falling film absorber, a third dosing port is arranged at the left side of the lower end of the three-stage falling film absorber, the lower end of the third medicine feeding port is provided with a third water pump inlet, the front end of the three-stage falling film absorber is provided with a third sewage draining outlet, a third demisting layer is arranged at the upper end outside the three-stage falling film absorber, a third packing layer is arranged in the middle outside the three-stage falling film absorber, the upper end of the third falling film absorber is provided with a plurality of third spraying devices, the lower end of the third falling film absorber is provided with a third air inlet, and the upper end of the third falling film absorber is provided with a third air outlet.
Further, the water washing tower comprises a fourth air inlet, a first circulating liquid inlet, a first cooling water inlet, a first cooling liquid outlet, a first tail gas outlet and a first finished product outlet, the fourth air inlet is arranged at the upper end of the water washing tower, the first circulating liquid inlet is arranged on the left side of the upper end of the water washing tower, the first cooling water inlet is arranged at the lower end of the water washing tower, the first cooling liquid outlet is arranged on the right side of the water washing tower, the first tail gas outlet is arranged on the left side of the lower end of the water washing tower, and the first finished product outlet is arranged at the lower end of the water washing tower.
Further, the alkali liquor absorption tower includes fifth air inlet, second circulation liquid import, second cooling water import, second cooling liquid export, second tail gas export, the export of second finished product, the fifth air inlet sets up in alkali liquor absorption tower upper end, the import of second circulation liquid sets up in alkali liquor absorption tower upper end left side, the import of second cooling water sets up at alkali liquor absorption tower lower extreme, the export of second cooling liquid sets up on alkali liquor absorption tower right side, the export of second tail gas sets up in alkali liquor absorption tower lower extreme left side, the export of second finished product sets up at alkali liquor absorption tower lower extreme.
Compared with the prior art, the utility model has the beneficial effects that:
1. hydrochloric acid tail gas is fully removed through the processes of collection, falling film absorption, water absorption, alkali absorption and the like, and the green and waste-free production process is realized.
2. Absorption liquid in the first-stage falling film absorber, the second-stage falling film absorber and the third-stage falling film absorber can be circularly operated through a circulating pump, and is finally discharged into a hydrochloric acid storage tank to be recycled, so that waste is changed into valuable.
Drawings
FIG. 1 is a front view of the novel high-efficiency hydrochloric acid tail gas recovery device of the present invention;
FIG. 2 is a schematic structural diagram of a primary falling film absorber of the novel high-efficiency hydrochloric acid tail gas recovery device of the present invention;
FIG. 3 is a schematic structural diagram of a two-stage falling film absorber of the novel high-efficiency hydrochloric acid tail gas recovery device according to the present invention;
FIG. 4 is a schematic structural diagram of a three-stage falling film absorber of the novel high-efficiency hydrochloric acid tail gas recovery device according to the present invention;
FIG. 5 is a schematic structural diagram of a water washing tower of the novel high-efficiency hydrochloric acid tail gas recovery device of the present invention;
FIG. 6 is a schematic structural diagram of an alkali liquor absorption tower of the novel efficient hydrochloric acid tail gas recovery device of the present invention;
in the figure: 1-first-stage falling film absorber, 2-second-stage falling film absorber, 3-third-stage falling film absorber, 4-water washing tower, 5-alkali liquor absorption tower, 6-exhaust device, 7-first human hole sight glass, 8-first dosing port, 9-first water pump inlet, 10-first drain port, 11-first air inlet, 12-first air outlet, 13-first demisting layer, 14-first packing layer, 15-first spray device, 16-second human hole sight glass, 17-second dosing port, 18-second water pump inlet, 19-second drain port, 20-second air inlet, 21-second air outlet, 22-second demisting layer, 23-second packing layer, 24-second spray device and 25-third human hole sight glass, 26-a third medicine feeding port, 27-a third water pump inlet, 28-a third sewage draining port, 29-a third air inlet, 30-a third air outlet, 31-a third demisting layer, 32-a third packing layer, 33-a third spraying device, 34-a fourth air inlet, 35-a first circulating liquid inlet, 36-a first cooling water inlet, 37-a first cooling liquid outlet, 38-a first tail gas outlet, 39-a first finished product outlet, 40-a fifth air inlet, 41-a second circulating liquid inlet, 42-a second cooling water inlet, 43-a second cooling liquid outlet, 44-a second tail gas outlet and 45-a second finished product outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a novel high-efficient hydrochloric acid tail gas recovery device, includes one-level falling film absorber 1, second grade falling film absorber 2, tertiary falling film absorber 3, water washing tower 4, alkali lye absorption tower 5, exhaust apparatus 6, second grade falling film absorber 2 sets up in 1 right side of one-level falling film absorber, tertiary falling film absorber 3 sets up on 2 right sides of second grade falling film absorber, water washing tower 4 sets up on 3 right sides of tertiary falling film absorber, alkali lye absorption tower 5 sets up on 4 right sides of water washing tower, exhaust apparatus 6 sets up on 5 right sides of alkali lye absorption tower.
Referring to fig. 2, the primary falling film absorber 1 includes a plurality of first peep hole mirrors 7, a first dosing port 8, a first water pump inlet 9, a first drain port 10, a first air inlet 11, a first air outlet 12, a first defogging layer 13, a first filler layer 14, and a plurality of first spraying devices 15, the plurality of first peep hole mirrors 7 are disposed on the left side of the primary falling film absorber 1, the first dosing port 8 is disposed on the left side of the lower end of the primary falling film absorber 1, the first water pump inlet 9 is disposed on the lower end of the first dosing port 8, the first drain port 10 is disposed at the front end of the primary falling film absorber 1, the first defogging layer 13 is disposed at the upper end of the exterior of the primary falling film absorber 1, the first filler layer 14 is disposed in the middle of the exterior of the primary falling film absorber 1, the plurality of first spraying devices 15 are disposed at the upper end of the primary falling film absorber 1, the first air inlet 11 is disposed at the lower end of the primary falling film absorber 1, the upper end of the first-stage falling film absorber 1 is provided with a first air outlet 12.
Referring to fig. 3, the secondary falling film absorber 2 includes a plurality of second manhole sight glasses 16, a second dosing port 17, a second water pump inlet 18, a second drain outlet 19, a second air inlet 20, a second air outlet 21, a second defogging layer 22, a second filler layer 23, and a plurality of second spraying devices 24, the plurality of second manhole sight glasses 16 are disposed on the left side of the secondary falling film absorber 2, the second dosing port 17 is disposed on the left side of the lower end of the secondary falling film absorber 2, the second water pump inlet 18 is disposed on the lower end of the second dosing port 17, the second drain outlet 19 is disposed at the front end of the secondary falling film absorber 2, the second defogging layer 22 is disposed at the upper end of the exterior of the secondary falling film absorber 2, the second filler layer 23 is disposed in the middle of the exterior of the secondary falling film absorber 2, the plurality of second spraying devices 24 are disposed at the upper end of the secondary falling film absorber 2, the second air inlet 20 is disposed at the lower end of the secondary falling film absorber 2, and a second air outlet 21 is arranged at the upper end of the secondary falling film absorber 2.
Referring to fig. 4, the three-level falling film absorber 3 includes a plurality of third manhole sight glasses 25, a third dosing port 26, a third water pump inlet 27, a third drain outlet 28, a third gas inlet 29, a third gas outlet 30, a third demisting layer 31, a third packing layer 32, and a plurality of third spraying devices 33, the plurality of third manhole sight glasses 25 are disposed on the left side of the three-level falling film absorber 3, the third dosing port 26 is disposed on the left side of the lower end of the three-level falling film absorber 3, the third water pump inlet 27 is disposed on the lower end of the third dosing port 26, the third drain outlet 28 is disposed at the front end of the three-level falling film absorber 3, the third demisting layer 31 is disposed at the upper end of the outside of the three-level falling film absorber 3, the third packing layer 32 is disposed in the middle of the outside of the three-level falling film absorber 3, the plurality of third spraying devices 33 are disposed at the upper end of the three-level falling film absorber 3, the third falling film absorber 29 is disposed at the lower end of the three-level falling film absorber 3, and a third air outlet 30 is arranged at the upper end of the three-stage falling film absorber 3.
Referring to fig. 5, the water washing tower 4 includes a fourth air inlet 34, a first circulating liquid inlet 35, a first cooling water inlet 36, a first cooling liquid outlet 37, a first off-gas outlet 38, and a first finished product outlet 39, the fourth air inlet 34 is disposed at the upper end of the water washing tower 4, the first circulating liquid inlet 35 is disposed at the left side of the upper end of the water washing tower 4, the first cooling water inlet 36 is disposed at the lower end of the water washing tower 4, the first cooling liquid outlet 37 is disposed at the right side of the water washing tower 4, the first off-gas outlet 38 is disposed at the left side of the lower end of the water washing tower 4, and the first finished product outlet 39 is disposed at the lower end of the water washing tower 4.
Referring to fig. 6, the alkali liquor absorption tower 5 includes a fifth air inlet 40, a second circulating liquid inlet 41, a second cooling water inlet 42, a second cooling liquid outlet 43, a second tail gas outlet 44, and a second product outlet 45, the fifth air inlet 40 is disposed at the upper end of the alkali liquor absorption tower 5, the second circulating liquid inlet 41 is disposed at the left side of the upper end of the alkali liquor absorption tower 5, the second cooling water inlet 42 is disposed at the lower end of the alkali liquor absorption tower 5, the second cooling liquid outlet 43 is disposed at the right side of the alkali liquor absorption tower 5, the second tail gas outlet 44 is disposed at the left side of the lower end of the alkali liquor absorption tower 5, and the second product outlet 45 is disposed at the lower end of the alkali liquor absorption tower 5.
The working principle of the utility model is as follows: the collected hydrochloric acid tail gas respectively passes through a first-stage falling film absorber 1, a second-stage falling film absorber 2 and a third-stage falling film absorber 3, the hydrochloric acid tail gas is captured and absorbed by liquid films in the first-stage falling film absorber 1, the second-stage falling film absorber 2 and the third-stage falling film absorber 3, most of the hydrochloric acid tail gas is absorbed and recovered, the low-concentration hydrochloric acid tail gas absorbed by the first-stage falling film absorber 1, the second-stage falling film absorber 2 and the third-stage falling film absorber 3 enters a water washing tower 4 again to achieve a primary purification effect, the hydrochloric acid tail gas which is not absorbed in the waste gas finally enters an alkali liquid absorption tower 5 to be absorbed and reacted, the purpose of complete purification is achieved, and the waste gas which is treated and reaches the standard is discharged through an exhaust device 6. Absorption liquid in the first-stage falling film absorber 1, the second-stage falling film absorber 2 and the third-stage falling film absorber 3 can be circularly operated through a circulating pump, and is finally discharged into a hydrochloric acid storage tank to be recycled, so that waste is changed into valuable. Modified graphite array tubes are arranged in the first-stage falling film absorber 1, the second-stage falling film absorber 2 and the third-stage falling film absorber 3, absorption liquid is formed into a liquid film in the array tubes from top to bottom to absorb hydrochloric acid tail gas, the water washing tower 4 is provided with a fourth gas inlet 34, a first circulating liquid inlet 35, a first cooling water inlet 36, a first cooling liquid outlet 37, a first tail gas outlet 38 and a first finished product outlet 39 to enable gas-liquid two-phase close contact to carry out mass transfer to achieve better treatment on waste gas, and the alkali liquid absorption tower 5 is provided with a fifth gas inlet 40, a second circulating liquid inlet 41, a second cooling water inlet 42, a second cooling liquid outlet 43, a second tail gas outlet 44 and a second finished product outlet 45 to enable gas-liquid two-phase close contact to carry out mass transfer to achieve better treatment on the waste gas.
For ease of description, the orientations referred to above are now specified as follows: the up, down, left, right, and front-back directions described above coincide with the up, down, left, right, and front-back directions of the projection relation of fig. 1 itself.
While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a novel high-efficient hydrochloric acid tail gas recovery device, its characterized in that, includes one-level falling film absorber (1), second grade falling film absorber (2), tertiary falling film absorber (3), water washing tower (4), alkali lye absorption tower (5), exhaust apparatus (6), second grade falling film absorber (2) set up on one-level falling film absorber (1) right side, tertiary falling film absorber (3) set up on second grade falling film absorber (2) right side, water washing tower (4) set up on tertiary falling film absorber (3) right side, alkali lye absorption tower (5) set up on water washing tower (4) right side, exhaust apparatus (6) set up on alkali lye absorption tower (5) right side.
2. The novel high-efficiency hydrochloric acid tail gas recovery device according to claim 1, wherein the primary falling film absorber (1) comprises a plurality of first pore view mirrors (7), a first dosing port (8), a first water pump inlet (9), a first sewage discharge port (10), a first air inlet (11), a first air outlet (12), a first demisting layer (13), a first filler layer (14), and a plurality of first spraying devices (15), the plurality of first pore view mirrors (7) are arranged on the left side of the primary falling film absorber (1), the first dosing port (8) is arranged on the left side of the lower end of the primary falling film absorber (1), the first water pump inlet (9) is arranged on the lower end of the first dosing port (8), the first sewage discharge port (10) is arranged at the front end of the primary falling film absorber (1), and the first demisting layer (13) is arranged at the upper end of the outside of the primary falling film absorber (1), the outer middle of the first-level falling film absorber (1) is provided with a first packing layer (14), the upper end of the first-level falling film absorber (1) is provided with a plurality of first spraying devices (15), the lower end of the first-level falling film absorber (1) is provided with a first air inlet (11), and the upper end of the first-level falling film absorber (1) is provided with a first air outlet (12).
3. The novel high-efficiency hydrochloric acid tail gas recovery device according to claim 1, wherein the secondary falling film absorber (2) comprises a plurality of second manhole sight glasses (16), a second dosing port (17), a second water pump inlet (18), a second drain outlet (19), a second air inlet (20), a second air outlet (21), a second demisting layer (22), a second packing layer (23), and a plurality of second spraying devices (24), the plurality of second manhole sight glasses (16) are arranged on the left side of the secondary falling film absorber (2), the second dosing port (17) is arranged on the left side of the lower end of the secondary falling film absorber (2), the second water pump inlet (18) is arranged on the lower end of the second dosing port (17), a second drain outlet (19) is arranged at the front end of the secondary falling film absorber (2), a second demisting layer (22) is arranged at the upper outer end of the secondary falling film absorber (2), the secondary falling film absorber (2) is provided with a second packing layer (23) in the middle of the outside, a plurality of second spraying devices (24) are arranged at the upper end of the secondary falling film absorber (2), a second air inlet (20) is arranged at the lower end of the secondary falling film absorber (2), and a second air outlet (21) is arranged at the upper end of the secondary falling film absorber (2).
4. The novel high-efficiency hydrochloric acid tail gas recovery device according to claim 1, wherein the three-stage falling film absorber (3) comprises a plurality of third manhole sight glasses (25), a third dosing port (26), a third water pump inlet (27), a third drain outlet (28), a third air inlet (29), a third air outlet (30), a third demisting layer (31), a third packing layer (32) and a plurality of third spraying devices (33), the plurality of third manhole sight glasses (25) are arranged on the left side of the three-stage falling film absorber (3), the third dosing port (26) is arranged on the left side of the lower end of the three-stage falling film absorber (3), the third water pump inlet (27) is arranged on the lower end of the third dosing port (26), the third drain outlet (28) is arranged at the front end of the three-stage falling film absorber (3), the third demisting layer (31) is arranged at the upper outer end of the three-stage falling film absorber (3), the three-stage falling film absorber is characterized in that a third packing layer (32) is arranged in the middle of the outer portion of the three-stage falling film absorber (3), a plurality of third spraying devices (33) are arranged at the upper end of the three-stage falling film absorber (3), a third air inlet (29) is arranged at the lower end of the three-stage falling film absorber (3), and a third air outlet (30) is arranged at the upper end of the three-stage falling film absorber (3).
5. The novel high-efficiency hydrochloric acid tail gas recovery device according to claim 1, the water washing tower (4) comprises a fourth air inlet (34), a first circulating liquid inlet (35), a first cooling water inlet (36), a first cooling liquid outlet (37), a first tail gas outlet (38) and a first finished product outlet (39), the fourth air inlet (34) is arranged at the upper end of the water washing tower (4), the first circulating liquid inlet (35) is arranged at the left side of the upper end of the water washing tower (4), the first cooling water inlet (36) is arranged at the lower end of the water washing tower (4), the first cooling liquid outlet (37) is arranged at the right side of the water washing tower (4), the first tail gas outlet (38) is arranged at the left side of the lower end of the water washing tower (4), the first product outlet (39) is provided at the lower end of the water washing tower (4).
6. The novel high-efficiency hydrochloric acid tail gas recovery device according to claim 1, the alkali liquor absorption tower (5) comprises a fifth air inlet (40), a second circulating liquid inlet (41), a second cooling water inlet (42), a second cooling liquid outlet (43), a second tail gas outlet (44) and a second finished product outlet (45), the fifth air inlet (40) is arranged at the upper end of the alkali liquor absorption tower (5), the second circulating liquid inlet (41) is arranged at the left side of the upper end of the alkali liquor absorption tower (5), the second cooling water inlet (42) is arranged at the lower end of the alkali liquor absorption tower (5), the second cooling liquid outlet (43) is arranged at the right side of the alkali liquor absorption tower (5), the second tail gas outlet (44) is arranged at the left side of the lower end of the alkali liquor absorption tower (5), the second product outlet (45) is arranged at the lower end of the alkali liquor absorption tower (5).
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| CN202122569601.2U CN216498524U (en) | 2021-10-25 | 2021-10-25 | Novel high-efficient hydrochloric acid tail gas is retrieved device |
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| CN202122569601.2U CN216498524U (en) | 2021-10-25 | 2021-10-25 | Novel high-efficient hydrochloric acid tail gas is retrieved device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116159410A (en) * | 2022-12-30 | 2023-05-26 | 浙江工程设计有限公司 | Gas-phase white carbon black tail gas treatment device and method |
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2021
- 2021-10-25 CN CN202122569601.2U patent/CN216498524U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116159410A (en) * | 2022-12-30 | 2023-05-26 | 浙江工程设计有限公司 | Gas-phase white carbon black tail gas treatment device and method |
| CN116159410B (en) * | 2022-12-30 | 2024-04-30 | 浙江工程设计有限公司 | Gas-phase white carbon black tail gas treatment device and method |
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