CN212680557U - Tail gas absorption system for producing aluminum fluoride - Google Patents
Tail gas absorption system for producing aluminum fluoride Download PDFInfo
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- CN212680557U CN212680557U CN202021309580.XU CN202021309580U CN212680557U CN 212680557 U CN212680557 U CN 212680557U CN 202021309580 U CN202021309580 U CN 202021309580U CN 212680557 U CN212680557 U CN 212680557U
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Abstract
The utility model discloses a tail gas absorption system for producing aluminum fluoride, which comprises a waste gas absorption box body, an inclined spray rack, a top inclined spray rack, a bottom spray rack, waste absorption liquid arranged at the bottom of the waste gas absorption box body, and a circulating pump for providing the spray liquid by the top inclined spray rack and the bottom spray rack, wherein the inclined spray rack, the top inclined spray rack and the bottom spray rack are arranged in the waste gas absorption box body; the bottom of the waste gas absorption box body is provided with a bottom sewage discharge valve, and the inclined spraying frame comprises a guide plate with the same width as the inside of the waste gas absorption box body, and a plurality of spray heads and liquid guide pipes which are arranged at the bottom of the guide plate. In the application, a plurality of layers of inclined spraying frames which are obliquely arranged are arranged in the waste gas absorption box body, and the plurality of inclined spraying frames are staggered at intervals, so that the retention time of tail gas in the waste gas absorption box body is prolonged, and the tail gas spraying and absorbing efficiency of the inclined spraying frames is improved; in addition, the waste absorption liquid is recycled by using a circulating pump, so that the water consumption is saved.
Description
Technical Field
The utility model relates to a fluorine chemical waste gas treatment technical field especially relates to a tail gas absorption system of production aluminium fluoride.
Background
In the fluorine chemical industry, in the process of preparing aluminum fluoride, a small amount of hydrogen fluoride gas contained in gypsum cannot be completely discharged and is brought to a gypsum bin, so that a small amount of harmful gases such as hydrogen fluoride, trace sulfur trioxide and sulfur dioxide are contained in tail gas generated after reaction, the hydrogen fluoride has high toxicity and extremely high corrosivity, excessive inhalation can cause fluorosis and the like to cause the health of factory personnel, the hydrogen fluoride can be converted and circulated along with natural migration if leaked into air, and the quality of water quality can be caused if the hydrogen fluoride enters a water body.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a tail gas absorption system of production aluminium fluoride solves the problem that the leak can not effectual processing appears easily in the processing of conventional fluorine chemical tail gas.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model provides a tail gas absorption system for producing aluminum fluoride, which comprises a waste gas absorption box body, an inclined spray rack, a top inclined spray rack and a bottom spray rack which are arranged in the waste gas absorption box body, waste absorption liquid arranged at the bottom of the waste gas absorption box body, waste gas conveying equipment which is arranged outside the waste gas absorption box body and provides waste gas to be treated for the waste gas absorption box body, and a circulating pump which is arranged outside the waste gas absorption box body and provides spray liquid for the inclined spray rack, the top inclined spray rack and the bottom spray rack; the bottom of the waste gas absorption box body is provided with a bottom sewage discharge valve, and the inclined spraying frame comprises a guide plate with the same width as the inner part of the waste gas absorption box body, and a plurality of spray heads and liquid guide pipes which are arranged at the bottom of the guide plate; waste gas conveying equipment passes through the waste gas admission pipe intercommunication the inside of waste gas absorption box, the circulating pump passes through absorption liquid conveyer pipe intercommunication the slope spray frame top slope spray frame with shower nozzle in the bottom spray frame.
Further, the baffle is arranged at the bottom of the waste gas absorption box body and used for dividing the waste absorption liquid into two parts.
Still further, inside the waste gas absorption box, the slope spray frame top slope spray frame with the bottom spray frame is from last to slope downwards respectively.
And further, the guide plates on the inclined spraying frame, the top inclined spraying frame and the bottom spraying frame respectively receive the spraying liquid sprayed from the upper layer.
Still further, the exhaust gas conveying equipment is a vacuum pump.
Still further, the waste gas conveying equipment is communicated with the waste absorption liquid at the bottom of the waste gas absorption box body through a waste gas inlet pipe.
And furthermore, a top air outlet for balancing air pressure is arranged at the top of the waste gas absorption box body and communicated with an exhaust pipe.
Compared with the prior art, the utility model discloses a beneficial technological effect: in the application, a plurality of layers of inclined spraying frames which are obliquely arranged are arranged in the waste gas absorption box body, and the plurality of inclined spraying frames are staggered at intervals, so that the retention time of tail gas in the waste gas absorption box body is prolonged, and the tail gas spraying and absorbing efficiency of the inclined spraying frames is improved; in addition, the waste absorption liquid is recycled by using a circulating pump, so that the water consumption is saved.
Drawings
The present invention will be further explained with reference to the following description of the drawings.
FIG. 1 is a schematic view of the main structure of the tail gas absorption system for producing aluminum fluoride according to the present invention.
Description of reference numerals: 1. a waste gas absorption box body; 1-1, a baffle; 2. inclining the spraying frame; 2-1, a spray head; 3. the top part is inclined with the spraying frame; 4. a bottom spray rack; 5. a top air outlet; 5-1, an exhaust pipe; 6. a bottom blowdown valve; 7. an exhaust gas conveying device; 7-1, an exhaust gas inlet pipe; 8. waste absorption liquid; 9. a circulation pump; 9-1 and an absorption liquid conveying pipe.
Detailed Description
As shown in fig. 1, the embodiment discloses a tail gas absorption system for producing aluminum fluoride, which comprises a waste gas absorption box 1, an inclined spray rack 2, a top inclined spray rack 3 and a bottom spray rack 4 which are arranged in the waste gas absorption box 1, a waste absorption liquid 8 which is arranged at the bottom of the waste gas absorption box 1, a waste gas conveying device 7 which is arranged outside the waste gas absorption box 1 and provides waste gas to be treated for the waste gas absorption box 1, and a circulating pump 9 which is arranged outside the waste gas absorption box 1 and provides spray liquid for the inclined spray rack 2, the top inclined spray rack 3 and the bottom spray rack 4; the bottom of the waste gas absorption box body 1 is hermetically provided with a bottom blowdown valve 6, wherein concentrated liquid of the waste gas absorption box body 1 is discharged and updated periodically, the inclined spray rack 2 comprises a guide plate which is as wide as the interior of the waste gas absorption box body 1, a plurality of spray heads 2-1 and a liquid guide pipe, the spray heads 2-1 are arranged at the bottom of the guide plate, the guide plate is obliquely fixed in the waste gas absorption box body 1 and forms a fluidized bed structure, the bottom of the guide plate is provided with uniformly spaced spray heads 2-1, and the spray heads 2-1 are communicated with an absorption liquid conveying pipe 9-1 through conveying pipes; the waste gas conveying equipment 7 is communicated with the interior of the waste gas absorption box body 1 through a waste gas inlet pipe 7-1, and the circulating pump 9 is communicated with the inclined spraying frame 2, the top inclined spraying frame 3 and the spray heads in the bottom spraying frame 4 through an absorption liquid conveying pipe 9-1.
In this embodiment, a baffle plate 1-1 installed at the bottom of the waste gas absorption tank 1 for dividing the waste absorption liquid 8 into two parts, the height of the baffle plate 1-1 is lower than the liquid level of the waste absorption liquid 8, wherein the baffle plate 1-1 mainly serves to block sludge or impurities in the waste absorption liquid 8 at the bottom of the waste gas absorption tank 1, as shown in fig. 1, wherein the circulation pump 9 is communicated with the waste absorption liquid 8 at the right of the baffle plate 1-1 and passes through an absorption liquid conveying pipe 9-1; in the waste gas absorption box body 1, the inclined spray frame 2, the top inclined spray frame 3 and the bottom spray frame 4 are inclined downwards from top to bottom respectively, and the stay time of tail gas in the waste gas absorption box body 1 is increased through the interval staggering of the inclined spray frames, so that the tail gas spraying and absorption efficiency of the inclined spray frame 2 is improved, and the guide plates on the inclined spray frame 2, the top inclined spray frame 3 and the bottom spray frame 4 respectively receive spray liquid sprayed from an upper layer; the waste gas conveying equipment 7 is a vacuum pump, and specifically, the waste gas conveying equipment 7 is an induced draft fan; the waste gas conveying equipment 7 is communicated with a waste absorption liquid 8 at the bottom of the waste gas absorption box body 1 through a waste gas inlet pipe 7-1; and a top air outlet 5 for balancing air pressure is arranged at the top of the waste gas absorption box body 1 and communicated with an exhaust pipe 5-1.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used for convenience of description only, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above embodiments are only for describing the preferred mode of the invention, and are not intended to limit the scope of the invention, and various modifications and improvements made to the technical solution of the invention by those skilled in the art without departing from the spirit of the invention should fall within the protection scope defined by the claims of the invention.
Claims (7)
1. A tail gas absorption system for producing aluminum fluoride is characterized in that: the device comprises a waste gas absorption box body (1), an inclined spray rack (2), a top inclined spray rack (3) and a bottom spray rack (4) which are arranged in the waste gas absorption box body (1), waste absorption liquid (8) arranged at the bottom of the waste gas absorption box body (1), waste gas conveying equipment (7) which is arranged outside the waste gas absorption box body (1) and provides waste gas to be treated for the waste gas absorption box body (1), and a circulating pump (9) which is arranged outside the waste gas absorption box body (1) and provides spray liquid for the inclined spray rack (2), the top inclined spray rack (3) and the bottom spray rack (4); wherein the bottom of the waste gas absorption box body (1) is provided with a bottom sewage discharge valve (6), and the inclined spraying frame (2) comprises a guide plate with the same width as the inner part of the waste gas absorption box body (1), a plurality of spray heads (2-1) arranged at the bottom of the guide plate and a liquid guide pipe; the waste gas conveying equipment (7) is communicated with the interior of the waste gas absorption box body (1) through a waste gas inlet pipe (7-1), and the circulating pump (9) is communicated with the inclined spraying frame (2), the top inclined spraying frame (3) and the spray head in the bottom spraying frame (4) through an absorption liquid conveying pipe (9-1).
2. The tail gas absorption system for producing aluminum fluoride according to claim 1, characterized in that: and the baffle (1-1) is arranged at the bottom of the waste gas absorption box body (1) and is used for dividing the waste absorption liquid (8) into two parts.
3. The tail gas absorption system for producing aluminum fluoride according to claim 1, characterized in that: the waste gas absorption box is characterized in that inside the waste gas absorption box body (1), the inclined spraying frame (2), the top inclined spraying frame (3) and the bottom spraying frame (4) are inclined downwards from top to bottom respectively.
4. The tail gas absorption system for producing aluminum fluoride according to claim 3, characterized in that: the guide plates on the inclined spraying frame (2), the top inclined spraying frame (3) and the bottom spraying frame (4) respectively receive spraying liquid sprayed from the upper layer.
5. The tail gas absorption system for producing aluminum fluoride according to claim 1, characterized in that: the waste gas conveying equipment (7) is a vacuum pump.
6. The tail gas absorption system for producing aluminum fluoride according to claim 1, characterized in that: the waste gas conveying equipment (7) is communicated with waste absorption liquid (8) at the bottom of the waste gas absorption box body (1) through a waste gas inlet pipe (7-1).
7. The tail gas absorption system for producing aluminum fluoride according to claim 1, characterized in that: the top of the waste gas absorption box body (1) is provided with a top air outlet (5) used for balancing air pressure and communicated with an exhaust pipe (5-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021309580.XU CN212680557U (en) | 2020-07-07 | 2020-07-07 | Tail gas absorption system for producing aluminum fluoride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021309580.XU CN212680557U (en) | 2020-07-07 | 2020-07-07 | Tail gas absorption system for producing aluminum fluoride |
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| Publication Number | Publication Date |
|---|---|
| CN212680557U true CN212680557U (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021309580.XU Active CN212680557U (en) | 2020-07-07 | 2020-07-07 | Tail gas absorption system for producing aluminum fluoride |
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| CN (1) | CN212680557U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113813759A (en) * | 2021-10-20 | 2021-12-21 | 常州市永祥化工有限公司 | Tail gas recycle device of dilute acid is purified in pyrite acid making |
-
2020
- 2020-07-07 CN CN202021309580.XU patent/CN212680557U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113813759A (en) * | 2021-10-20 | 2021-12-21 | 常州市永祥化工有限公司 | Tail gas recycle device of dilute acid is purified in pyrite acid making |
| CN113813759B (en) * | 2021-10-20 | 2023-11-24 | 常州市永祥化工有限公司 | Tail gas recycling device for dilute acid purification through pyrite acid production |
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Address after: 067500 dongsanjia village, Pingquan Town, Pingquan City, Chengde City, Hebei Province Patentee after: Chengde Yingke Fine Chemical Co.,Ltd. Address before: 067500 dongsanjia village, Pingquan Town, Pingquan City, Chengde City, Hebei Province Patentee before: CHENGDE YINGKE FINE CHEMICAL CO.,LTD. |