CN218047274U - Hydrogen fluoride tail gas washing tower - Google Patents
Hydrogen fluoride tail gas washing tower Download PDFInfo
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- CN218047274U CN218047274U CN202221108047.6U CN202221108047U CN218047274U CN 218047274 U CN218047274 U CN 218047274U CN 202221108047 U CN202221108047 U CN 202221108047U CN 218047274 U CN218047274 U CN 218047274U
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Abstract
The invention relates to a hydrogen fluoride tail gas washing tower, which comprises a tower body, wherein an air inlet pipe is arranged at the bottom of the side wall of the tower body, an air outlet pipe is arranged at the top of the side wall of the tower body, a cylinder is coaxially arranged in the tower body, sealing plates are arranged at two ends of the cylinder, water spray holes I are uniformly formed in the side wall of the cylinder, circulating pipes with two ends respectively connected with the inside of the cylinder and the bottom of the inside of the tower body are arranged outside the tower body, a water pump and a booster pump are arranged on the circulating pipes, a filtering mechanism is arranged on the circulating pipes between the water pump and the booster pump, a guide plate sleeved on the cylinder is spirally arranged in the tower body, the space between the cylinder and the tower body is divided into a spirally arranged guide channel by the guide plate, a jacket is further sleeved on the tower body, a branch pipe communicated with the jacket is arranged on the circulating pipe, and water spray holes II communicated with the guide channel and the jacket are further arranged on the side wall of the tower body. The invention has simple structure and convenient use.
Description
Technical Field
The invention relates to the technical field of hydrogen fluoride production, in particular to a hydrogen fluoride tail gas washing tower.
Background
When the rotary furnace is used for producing hydrogen fluoride, furnace gas from the rotary furnace contains various gases, sulfuric acid mist and solid residues carried by gas flow, the mixed gases pass through the sulfuric acid absorption tower after passing through a plurality of purification steps, tail gas from the sulfuric acid absorption tower contains a small amount of sulfur dioxide, silicon tetrafluoride and hydrogen fluoride, water is used for absorption in the water washing tower, a byproduct, namely fluosilicic acid is generated, if the absorption effect of the water washing tower is poor, discharged gas can pollute the environment, and great waste can be caused.
For example, CN211585940U discloses a water scrubber for adsorbing tail gas generated in the preparation of hydrogen fluoride, which cannot effectively prolong the retention time and the flow path of gas in the tower body, and cannot effectively contact liquid with gas sufficiently, resulting in poor spraying and washing effects.
Disclosure of Invention
The invention aims to provide a hydrogen fluoride tail gas washing tower.
The technical problem of the invention is mainly solved by the following technical scheme:
the utility model provides a hydrogen fluoride tail gas scrubbing tower, includes the tower body, wherein tower body lateral wall bottom is provided with the intake pipe, and its top is provided with the outlet duct:
a cylinder which is coaxial with the tower body is arranged in the tower body, sealing plates are arranged at two ends of the cylinder, water spray holes I are uniformly formed in the side wall of the cylinder, circulating pipes are arranged on the outer side of the tower body, two ends of each circulating pipe are respectively connected with the inside of the cylinder and the bottom of the inside of the tower body, a water pump and a booster pump are arranged on each circulating pipe, and a filtering mechanism is arranged on each circulating pipe between the water pump and the booster pump;
the tower body is internally and spirally provided with a guide plate sleeved on the cylinder, wherein the guide plate divides the space between the cylinder and the tower body into a spirally arranged guide channel, the tower body is further sleeved with a jacket, the circulating pipe is provided with a branch pipe communicated with the inside of the jacket, and the side wall of the tower body is further provided with a water spray hole II communicated with the guide channel and the jacket.
As a preferred scheme, the diameter of the inner opening of the cylinder is gradually reduced from top to bottom, wherein the upper end and the lower end of the side wall of the cylinder are both outwards folded with folded edges, and the sealing plate is locked and fixed on the corresponding folded edges through bolts.
Preferably, the outlet end of the circulation pipe penetrates through the upper sealing plate and extends into the cylinder, wherein the booster pump is disposed downstream of the circulation pipe, and the branch pipe is connected to the circulation pipe downstream of the booster pump.
As a preferred scheme, the guide plate, the cylinder and the inner side wall of the tower body are integrally arranged, wherein the height of the jacket and the height of the cylinder are both larger than the distance between the upper end and the lower end of the guide plate.
As a preferred scheme, filtering mechanism includes the cartridge filter, wherein is provided with the arc filter mantle that the opening set up down in the cartridge filter, the cartridge filter top is provided with the motor, and wherein the pivot of motor runs through the filter mantle middle department, and the pivot bottom is provided with and hugs closely V type scraper blade on the filter mantle bottom end face, be provided with the pipeline I who is connected with the booster pump in the cartridge filter of filter mantle top, wherein be provided with the pipeline II who is connected with the water pump in the cartridge filter of filter mantle below.
As an optimal scheme, a plurality of groups of cross rods are radially arranged outwards at the bottom of the edge of the upper sealing plate, vertical rods connected with the inner top wall of the tower body are upwards arranged at the tail ends of the cross rods, and a rhombic flow guide seat is arranged between the plurality of groups of vertical rods.
As a preferred scheme, the side wall of the tower body is provided with manholes positioned at the upper side and the lower side of the cylinder, wherein the side wall of the tower body positioned below the air inlet pipe is respectively provided with a liquid inlet pipe and an overflow pipe, and the middle part of the bottom of the tower body is also provided with a liquid outlet pipe.
As a preferred scheme, the bottom of the jacket is provided with a sewage discharge pipe communicated with the tower body, wherein the sewage discharge pipe is provided with a manual valve.
The invention has the beneficial effects that: in the invention, when gas flows in the tower body, the washing liquid sprayed by the water spraying holes I and the water spraying holes II can be uniformly sprayed in the rising gas in the flow guide channel to be mixed and reacted with the rising gas so as to play a role in spraying and washing the rising gas, and in the process, the approach of the gas in the tower body is also prolonged through the spiral flow guide channel while the upward gas is subjected to turning deceleration through the flow guide plate, so that the retention time of the gas in the tower body is prolonged, the approach of the gas is prolonged, and the washing liquid can be fully contacted with the gas to achieve the purpose of improving the spraying and washing effect of the gas.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view of the cylinder of the present invention.
In the figure: 1. the device comprises a tower body, 2, an air inlet pipe, 3, an air outlet pipe, 4, a cylinder, 5, a sealing plate, 6, water spray holes I,7, a circulating pipe, 8, a water pump, 9, a booster pump, 10, a filtering mechanism, 101, a filter cylinder, 102, a filter cover, 103, a motor, 104, a rotating shaft, 105, a V-shaped scraper plate, 106, a pipeline I,107, a pipeline II,11, a guide plate, 12, a guide channel, 13, a jacket, 14, a branch pipe, 15, water spray holes II,16, a cross rod, 17, a vertical rod, 18, a guide seat, 19 and a drain pipe.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
The utility model provides a hydrogen fluoride tail gas scrubbing tower, includes tower body 1, wherein 1 lateral wall bottom of tower body is provided with intake pipe 2, and its top is provided with outlet duct 3:
the tower body 1 is internally provided with a cylinder 4 which is coaxial with the tower body, wherein both ends of the cylinder 4 are provided with a sealing plate 5, the diameter of an inner opening of the cylinder 4 is gradually reduced from top to bottom, wherein both ends of the side wall of the cylinder 4 are outwards turned over to form folded edges, and the sealing plate 5 is locked and fixed on the corresponding folded edges through bolts.
Wherein, the side wall of the cylinder 4 is evenly provided with water spray holes I6, the outer side of the tower body 1 is provided with a circulating pipe 7, the two ends of the circulating pipe 7 are respectively connected with the inner part of the cylinder 4 and the inner bottom part of the tower body 1, the circulating pipe 7 is provided with a water pump 8 and a booster pump 9, and the circulating pipe 7 between the water pump 8 and the booster pump 9 is provided with a filtering mechanism 10;
a guide plate 11 sleeved on the cylinder 4 is spirally arranged in the tower body 1, wherein the guide plate 11 divides the space between the cylinder 4 and the tower body 1 into a spirally arranged guide channel 12, the tower body 1 is also externally sleeved with a jacket 13, wherein a branch pipe 14 communicated with the inside of the jacket 13 is arranged on the circulating pipe 7, and a water spray hole II15 communicated with the diversion channel 12 and the jacket 13 is also arranged on the side wall of the tower body 1.
In the embodiment, the guide plate 11 is integrally arranged with the cylinder 4 and the inner side wall of the tower body 1, wherein the height of the jacket 13 and the height of the cylinder 4 are both larger than the distance between the upper end and the lower end of the guide plate 11.
The outlet end of the circulation pipe 7 penetrates the upper sealing plate 5 and extends into the cylinder 4, wherein the booster pump 9 is disposed downstream of the circulation pipe 7, and the branch pipe 14 is connected to the circulation pipe 7 downstream of the booster pump 9.
The manhole that is located drum 4 upper and lower both sides is provided with on the 1 lateral wall of tower body, wherein is located and is provided with feed liquor pipe and overflow pipe on the 1 lateral wall of tower body of intake pipe 2 below respectively, and the department still is provided with the drain pipe in the middle of the tower body 1 bottom.
The working principle of the invention is as follows: proper washing liquid is injected into the tower body 1 through the liquid inlet pipe, the water pump 8 is started to pump the washing liquid into the filtering mechanism 10 along the circulating pipe 7 to filter the washing liquid, the filtered washing liquid is pressurized by the booster pump 9 and is guided into the cylinder 4 and the jacket 13 through the circulating pipe 7, at the moment, the high-pressure liquid in the cylinder 4 can be uniformly sprayed into the flow guide channel 12 through the water spray holes I6, the high-pressure liquid in the jacket 13 is uniformly sprayed into the flow guide channel 12 through the water spray holes II15, and finally the liquid in the flow guide channel 12 spirally flows down through the top end face of the flow guide plate 11 and is collected at the bottom of the tower body 1.
And after the washing liquid got into the circulation state, open intake pipe 2, make the leading-in tower body 1 bottom of the tail gas that needs the washing, guide plate 11 can go on to the exhaust of intake pipe 2 spun at this moment and roll over to the deceleration for gaseous along diversion channel 12 spiral upward flow, played around the three-dimensional purpose of spraying the washing to sulfur dioxide, silicon tetrafluoride, hydrogen fluoride mist, the mist through spraying the washing generates accessory substance fluosilicic acid and gets into follow-up conventional step from outlet duct 3.
And when the gas flows in the tower body 1, the water washing liquid sprayed by the water spraying holes I6 and the water spraying holes II15 can be uniformly sprayed in the gas rising in the flow guide channel 12 to be mixed and reacted with the gas, so that the spraying and washing effects are achieved, in the process, the way of the gas in the tower body 1 is prolonged through the spiral flow guide channel 12 while the upward gas is deflected and decelerated through the flow guide plate 11, so that the retention time of the gas in the tower body 1 is prolonged, the way of the gas is prolonged, the water washing liquid can be fully contacted with the gas, the spraying and washing effects on the water washing liquid are improved, and the gas flowing upward in the flow guide channel 12 can be sprayed and washed from two different directions by the liquid sprayed by the water spraying holes I6 and the water spraying holes II15 in the process.
When the guide plate 11 is cleaned in daily needs, the liquid sprayed out from the water spray holes I6 and the water spray holes II15 can be uniformly sprayed on the upper end surface and the lower end surface of the guide plate 11, so that the guide plate is sprayed and cleaned, and finally the liquid is collected to the bottom of the tower body 1 through the inclined surface of the guide plate 11 to be collected.
The filtering mechanism 10 comprises a filter cartridge 101, wherein an arc-shaped filter cover 102 with a downward opening is arranged in the filter cartridge 101, a motor 103 is arranged at the top of the filter cartridge 101, a rotating shaft 104 of the motor 103 penetrates through the middle of the filter cover 102, a V-shaped scraper 105 tightly attached to the bottom end face of the filter cover 102 is arranged at the bottom end of the rotating shaft 104, a pipeline I106 connected with a booster pump 9 is arranged in the filter cartridge 101 above the filter cover 102, and a pipeline II107 connected with a water pump 8 is arranged in the filter cartridge 101 below the filter cover 102.
After water pump 8 is with wash water suction in the cartridge filter 101, along with the rising of liquid level in the cartridge filter 101, filter the impurity that probably exists in the liquid through filter mantle 102, prevent to contain a large amount of impurity in the liquid of leading-in drum 4 and jacket 13 and with the problem of hole for water spraying I6 and hole for water spraying II15 jam, and after filter mechanism 10 used a period, probably adhesion impurity influences its filter effect or efficiency on the filter mantle 102 diapire, motor 103 accessible pivot 104 drives V type scraper blade 105 and rotates then scrapes the effect to filter mantle 102 diapire adhesion impurity, prevent that impurity from influencing the filter efficiency of filter mantle 102, can open the liquid discharge of cartridge filter 101 bottom discharging pipe with its bottom contains a large amount of impurity simultaneously.
In this embodiment, the upper sealing plate 5 is radially provided with a plurality of groups of cross rods 16 along the bottom, wherein the tail ends of the cross rods 16 are upwards provided with vertical rods 17 connected with the inner top wall of the tower body 1, and a flow guide seat 18 with a rhombic vertical section is arranged between the plurality of groups of vertical rods 17.
The stability of the cylinder 4 in the tower 1 is enhanced by the cross bars 16 and the vertical bars 17, wherein the diversion seat 18 can shield the liquid sprayed from the water spray holes I6 and II15, and prevent the liquid from splashing to the air outlet pipe 3 and being discharged from the air outlet pipe.
The bottom of the jacket 13 is provided with a drain pipe 19 communicated with the tower body 1, wherein the drain pipe 19 is provided with a manual valve, and after use, the drain pipe 19 can be opened by operating the manual valve, so that liquid possibly containing impurities at the bottom in the jacket 13 flows back into the tower body 1 through the drain pipe 19.
The present invention has been described in detail, but the above description is only a preferred embodiment of the present invention, and is not to be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (8)
1. The utility model provides a hydrogen fluoride tail gas scrubbing tower, includes the tower body, wherein tower body lateral wall bottom is provided with the intake pipe, and its top is provided with outlet duct, its characterized in that:
a cylinder which is coaxial with the tower body is arranged in the tower body, sealing plates are arranged at two ends of the cylinder, water spray holes I are uniformly formed in the side wall of the cylinder, circulating pipes are arranged on the outer side of the tower body, two ends of each circulating pipe are respectively connected with the inside of the cylinder and the bottom of the inside of the tower body, a water pump and a booster pump are arranged on each circulating pipe, and a filtering mechanism is arranged on each circulating pipe between the water pump and the booster pump;
the tower body is internally and spirally provided with a guide plate sleeved on the cylinder, wherein the guide plate divides the space between the cylinder and the tower body into a spirally arranged guide channel, the tower body is further sleeved with a jacket, the circulating pipe is provided with a branch pipe communicated with the inside of the jacket, and the side wall of the tower body is further provided with a water spray hole II communicated with the guide channel and the jacket.
2. The hydrogen fluoride off-gas scrubbing tower of claim 1, wherein: the diameter of an opening in the cylinder is gradually reduced from top to bottom, wherein folded edges are outwards folded at the upper end and the lower end of the side wall of the cylinder, and the sealing plate is locked and fixed on the corresponding folded edges through bolts.
3. The hydrogen fluoride off-gas scrubbing tower of claim 1, wherein: the outlet end of the circulating pipe penetrates through the upper sealing plate and extends into the cylinder, wherein the booster pump is arranged at the downstream of the circulating pipe, and the branch pipe is connected with the circulating pipe at the downstream of the booster pump.
4. The hydrogen fluoride off-gas scrubbing tower of claim 1, wherein: the guide plate, the cylinder and the inner side wall of the tower body are integrally arranged, wherein the height of the jacket and the height of the cylinder are both larger than the distance between the upper end and the lower end of the guide plate.
5. The hydrogen fluoride off-gas scrubbing tower of claim 1, wherein: the filtering mechanism comprises a filter cartridge, wherein an arc-shaped filter cover with a downward opening is arranged in the filter cartridge, a motor is arranged at the top of the filter cartridge, a rotating shaft of the motor penetrates through the middle of the filter cover, a V-shaped scraper plate tightly attached to the bottom end face of the filter cover is arranged at the bottom end of the rotating shaft, a pipeline I connected with the booster pump is arranged in the filter cartridge above the filter cover, and a pipeline II connected with the water pump is arranged in the filter cartridge below the filter cover.
6. The hydrogen fluoride off-gas scrubbing tower of claim 1, wherein: the top closing plate border bottom is outwards radially provided with the multiunit horizontal pole, and wherein the horizontal pole end upwards is provided with the montant of being connected with the interior roof of tower body, and is provided with the water conservancy diversion seat that the vertical section is the rhombus between the multiunit montant.
7. The hydrogen fluoride off-gas scrubbing tower of claim 1, wherein: the tower body side wall is provided with manholes positioned at the upper side and the lower side of the cylinder, wherein the tower body side wall positioned below the air inlet pipe is respectively provided with a liquid inlet pipe and an overflow pipe, and the middle part of the bottom of the tower body is also provided with a liquid outlet pipe.
8. The hydrogen fluoride off-gas scrubbing tower of claim 1, wherein: and a drain pipe communicated with the tower body is arranged at the bottom of the jacket, and a manual valve is arranged on the drain pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221108047.6U CN218047274U (en) | 2022-05-10 | 2022-05-10 | Hydrogen fluoride tail gas washing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221108047.6U CN218047274U (en) | 2022-05-10 | 2022-05-10 | Hydrogen fluoride tail gas washing tower |
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| Publication Number | Publication Date |
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| CN218047274U true CN218047274U (en) | 2022-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221108047.6U Active CN218047274U (en) | 2022-05-10 | 2022-05-10 | Hydrogen fluoride tail gas washing tower |
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| CN (1) | CN218047274U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117180967A (en) * | 2023-10-23 | 2023-12-08 | 上海市政工程设计研究总院（集团）有限公司 | Exhaust gas treatment system |
-
2022
- 2022-05-10 CN CN202221108047.6U patent/CN218047274U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117180967A (en) * | 2023-10-23 | 2023-12-08 | 上海市政工程设计研究总院（集团）有限公司 | Exhaust gas treatment system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A hydrogen fluoride tail gas washing tower Effective date of registration: 20230727 Granted publication date: 20221216 Pledgee: Ganzhou branch of Jiujiang Bank Co.,Ltd. Pledgor: Jiangxi Huikai Chemical Co.,Ltd. Registration number: Y2023980050042 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |