CN210097327U

CN210097327U - Tail gas treatment spray tower

Info

Publication number: CN210097327U
Application number: CN201920594282.0U
Authority: CN
Inventors: 施巍; 洪裕禧; 王志宏; 倪纤
Original assignee: Shenzhen City Gold Metal Refining Co Ltd
Current assignee: Shenzhen City Gold Metal Refining Co Ltd
Priority date: 2019-04-27
Filing date: 2019-04-27
Publication date: 2020-02-21
Anticipated expiration: 2029-04-27

Abstract

The utility model relates to a tail gas treatment spray tower, which comprises a main body, an air inlet and an air outlet, wherein the lower part in the main body is provided with a first adsorption unit, the middle part in the main body is provided with a second adsorption unit, the top in the main body is provided with a third adsorption unit, and the second adsorption unit and the third adsorption unit have the same structure; the second adsorption unit comprises a water collecting film arranged in the main body, a water collecting tank arranged on the main body and a spray head arranged in the main body, and the water collecting tank is provided with a water suction pump; the main part is internally provided with three packing layers which are respectively arranged between the first adsorption unit and the top of the main part, between the second adsorption unit and the first adsorption unit and between the second adsorption unit and the bottom of the main part. In the adsorption process of the spray tower, the second adsorption unit collects and reuses the liquid of the third adsorption unit, and similarly, the first adsorption unit collects the liquid of the second adsorption unit.

Description

Tail gas treatment spray tower

Technical Field

The utility model belongs to the technical field of the technique of spray column and specifically relates to a tail gas treatment spray column is related to.

Background

Spray towers are also known as spray towers. The absorption tower is provided with no filler or tower plate but with a nozzle. The liquid enters from the top of the tower and is sprayed into a mist or raindrop shape through a nozzle; the gas enters from the lower part of the tower and is closely contacted with the liquid in the form of mist or raindrops for mass transfer, so that the easily soluble components in the gas are absorbed. Simple structure, difficult jam, the resistance is little, operation easy maintenance.

In the prior art, because the pollutants in the gas are better absorbed, the pollutants in the gas are absorbed when the liquid in the water tank is sprayed downwards from the top of the spray tower through the water pump. However, no liquid collecting device is arranged in the spray tower, so that the liquid is continuously changed into fog or raindrops after use, and pollutants are absorbed by the gas entering the inlet. Therefore, the existing spray tower does not fully utilize liquid, and waste of the liquid is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a tail gas treatment spray column.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a tail gas treatment spray tower comprises a main body, a gas inlet and a gas outlet, wherein the gas inlet is formed in the bottom of the main body, the gas outlet is formed in the top of the main body, a first adsorption unit is arranged at the lower part in the main body, a second adsorption unit is arranged in the middle of the main body, a third adsorption unit is arranged at the top of the main body, and the second adsorption unit and the third adsorption unit are consistent in structure; the second adsorption unit comprises a water collecting film which is arranged in the main body and used for collecting liquid, a water collecting tank which is arranged on the main body and used for collecting the liquid on the water collecting film, and a spray head which is arranged in the main body and connected with the water collecting tank through a connector, and the water collecting tank is provided with a water suction pump connected with a pipeline; the main part is internally provided with three packing layers which are respectively arranged between the first adsorption unit and the top of the main part, between the second adsorption unit and the first adsorption unit and between the second adsorption unit and the bottom of the main part.

Through adopting above-mentioned scheme, when the spray column purified gas, gas flowed in through the air inlet of main part bottom and loops through first adsorption unit, second adsorption unit, third adsorption unit and adsorbs, adsorbs the back, and gas outlet from the main part top flows out. In the adsorption process of the spray tower, after the liquid of the third adsorption unit adsorbs the gas, the liquid is collected through the water collecting film of the second adsorption unit, and the liquid is adsorbed for the second time, so that the liquid is fully utilized, the gas entering the third adsorption unit is cleaner, and the gas adsorbed by the third adsorption unit is cleaner. In a similar way, the first unit utilizes the liquid of the second unit and carries out preliminary adsorption on the gas of the gas inlet. Through the setting of packing layer, increased gaseous and liquid mutual adsorption to the harmful substance in the melting gas.

By adopting the above scheme, be provided with the solid fixed ring that the slope set up in the main part, the water-collecting film is fixed in through the screw slope gu on the fixed ring, the liquid that the water-collecting film was collected passes through the pipeline transportation to the header tank in.

By adopting the scheme, the water collecting film is firmly fixed in the main body through the arrangement of the fixing ring, and liquid is collected; meanwhile, the fixing ring is obliquely arranged, so that liquid can flow downwards along the reverse inclination of the water collecting film and is collected through the water collecting tank.

Preferably, a containing box is arranged on one side in the main body, the bottom of the water collecting film is fixed at an opening at the top of the containing box, and the containing box is connected with the water collecting box through a pipeline.

Through adopting above-mentioned scheme, through the setting of containing box, make the liquid on the membrane that catchments flow into in the containing box to flow into the header tank through the pipeline. Through the mode, the collection of liquid is convenient.

Preferably, the first adsorption unit includes a water tank disposed outside the main body and a nozzle disposed in the main body, the water tank is connected to the nozzle through a pipe, and a water pump connected to the pipe is also disposed in the water tank.

Through adopting above-mentioned scheme, through the setting of nozzle, water tank, the suction pump passes through the water suction nozzle of pipeline in with the water tank, and the nozzle is vaporific and the drop form with liquid spray, and vaporific or drop form liquid passes through the purifying thing in the packing layer adsorbed gas. The liquid in the water tank is transferred into the liquid used initially, the liquid has better adsorbability, and the gas adsorbed by the third adsorption unit is cleaner.

Preferably, a water spraying tank is arranged at the top in the main body, a plurality of nozzles are arranged at the bottom of the water spraying tank, and a pipeline connected with the water tank is connected to the water spraying tank.

Through adopting above-mentioned scheme, through the setting of spray box, and the spray box is provided with fixed shower nozzle, makes vaporific or raindrop form liquid coverage area wider, better and other contacts.

Preferably, the packing layer comprises an inner support mesh disposed on the main body and a packing disposed on the support mesh.

Through adopting above-mentioned scheme, through the setting of supporting network, the effect that the effect and the difficult effect that influence packs of packing of supporting network main effect is supported.

Preferably, a wastewater treatment tank for storing and treating the liquid at the bottom of the main body is provided at one side outside the main body.

Through adopting above-mentioned scheme, through the setting of waste water treatment case, make the waste water of reuse accomodate, handle, carry out reuse.

Preferably, the wastewater treatment tank is connected to the water collecting tank of the first adsorption unit through a pipeline and is connected to the water collecting tank of the second adsorption unit through another pipeline.

By adopting the scheme, when the gas adsorbed by the third unit still has residues, the treated liquid is introduced into the second unit or the first unit, so that the adsorption effect of the first unit or the second unit is improved, the gas impurities entering the third unit are reduced, and the gas discharged by the third unit is cleaner.

To sum up, the utility model discloses a beneficial technological effect does:

1. when the spray tower purifies gas, gas flows in through the gas inlet of main part bottom and loops through first adsorption unit, second adsorption unit, third adsorption unit and adsorbs, and after the absorption, gas flows out from the gas outlet at main part top. And 2, in the adsorption process of the spray tower, after the liquid of the third adsorption unit adsorbs the gas, the liquid is collected through the water collecting membrane of the second adsorption unit, and the liquid is adsorbed for the second time, so that the liquid is fully utilized, the gas entering the third adsorption unit is cleaner, and the gas adsorbed by the third adsorption unit is cleaner.

3. The first unit utilizes the liquid of the second unit and carries out preliminary adsorption on the gas of the gas inlet. Through the arrangement of the packing layer, the mutual adsorption of gas and liquid is increased, thereby melting harmful substances in the gas

Drawings

FIG. 1 is a schematic view of the overall structure of a spray tower;

fig. 2 is a vertical sectional view of a spray tower.

In the figure: 1. a main body; 11. an air inlet; 12. an air outlet; 13. a fixing ring; 2. a first adsorption unit; 3. a second adsorption unit; 31. a water collecting film; 32. a water collection tank; 33. a spray head; 34. a storage box; 4. a third adsorption unit; 41. a water tank; 42. a nozzle; 43. a water spraying tank; 5. a wastewater treatment tank; 61. a pipeline; 62. a water pump; 7. a filler layer; 71. a support net; 72. and (4) filling.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a tail gas treatment spray column, including main part 1, the top of main part 1 is provided with gas outlet 12, and the bottom of main part 1 is provided with air inlet 11. The upper, middle and lower of main part 1 is provided with respectively and carries out the first adsorption element 2 and the second that purify and adsorb unit 3 and third adsorption element 4 to gas, and gas gets into through the import, purifies the back through first adsorption element 2, and the gas after the purification gets into second adsorption element 3 and further purifies, gets into third adsorption element 4 after second adsorption element 3 purifies, passes through gas outlet 12 after third adsorption element 4 and discharges.

Referring to fig. 2, the third adsorption unit 4 includes a water tank 41, a water spray tank 43, and nozzles 42, the water tank 41 is installed at the bottom of the outer side of the main body 1, the water spray tank 43 is horizontally installed at the top of the main body 1, the water spray tank 43 has a disk shape, and a plurality of nozzles 42 are uniformly installed at the lower surface of the water spray tank 43. The top of the water spraying tank 43 is connected with the bottom of the water tank 41 through a pipe 61 passing through the main body 1, and both ends of the pipe 61 are communicated with the water spraying tank 43 and the water tank 41. A suction pump 62 is installed at the bottom of the water tank 41, the suction pump 62 pumps the water in the water tank 41 into the water spray tank 43 through a pipe 61, and the water spray tank 43 sprays the liquid into a mist or raindrop shape through the lower nozzle 42.

The packing layer 7 is installed on the lower side of the third adsorption unit 4, the packing layer 7 comprises a support net 71 and a packing 72, the support net 71 is horizontally fixed in the main body 1 through bolts, and the packing 72 is placed on the support net 71. The liquid sprayed out of the third adsorption unit 4 flows from top to bottom along the surface of the packing 72, the gas passing through the second adsorption unit 3 contacts with the liquid on the packing 72 through the packing 72, so that the harmful substances in the gas are purified by the liquid, and the purified gas is discharged through the gas outlet 12.

The second adsorption unit 3 is arranged at the lower side of the third adsorption unit 4, the second adsorption unit 3 collects the liquid used by the third adsorption unit 4, the collected liquid is continuously sprayed into a fog shape and a raindrop shape through the second adsorption unit 3, and the gas generated by the first adsorption unit 2 is purified; in the same way, the first adsorption unit 2 collects the liquid used by the second adsorption unit 3, and purifies the gas at the gas inlet 11.

The second adsorption unit 3 is installed in the middle part in main part 1, and second adsorption unit 3 includes water-collecting film 31, containing box 34, header tank 32, shower nozzle 33, be provided with in main part 1 and be oval solid fixed ring 13, gu fixed ring 13 is fixed in the inboard of main part 1 through the bolt slope, water-collecting film 31 is also oval and through the bolt fastening in the upper surface of collar and shutoff post main part 1, and water-collecting film 31 also inclines to set up (water-collecting film 31 is a membrane that has ventilative waterproof, for example GORE-TEX membrane). The containing box 34 is vertically arranged at one side in the main body 1 and is positioned at the bottom of the water collecting film 31, the lowest end of the water collecting film 31 penetrates through an opening at the top of the containing box 34 and is positioned in the containing box 34, and liquid on the water collecting film 31 flows into the containing box 34 along the direction of the water collecting film 31; meanwhile, the water collecting tank 32 is installed at one side of the bottom of the main body 1, a pipe 61 communicated with the water collecting tank 32 is installed at one side of the accommodating tank 34, and the pipe 61 conveys water of the accommodating tank 34 into the water collecting tank 32. Meanwhile, the spray head 33 is installed under the water collecting membrane 31, and the liquid in the water collecting tank 32 is delivered to the lower side of the water collecting membrane 31 through the suction pump 62 and the pipe 61 and is connected to the spray head 33, at this time, the spray head 33 atomizes or rains the collected liquid.

According to the packing layer 7 described above, the packing layer 7 is also installed at the lower side of the second adsorption unit 3, and the liquid generated from the second adsorption unit 3 is combined with the gas flowing out of the first adsorption unit 2 through the packing 72, thereby purifying the harmful substances in the gas of the first adsorption unit 2.

The first adsorption unit 2 and the second adsorption unit 3 have the same structure, liquid used by the second adsorption unit 3 is collected by the water collection tank 32, water in the water collection tank 32 is conveyed to the upper side of the bottom in the main body 1 through the water suction pump 62 and the pipeline 61 and is sprayed into a mist shape and a raindrop shape through the nozzle 42, and the gas in the gas inlet 11 is purified by the atomized liquid through the packing layer 7.

Referring to fig. 1 and 2, a wastewater treatment tank 5 is installed on one side outside the main body 1, waste liquid at the bottom of the main body 1 is conveyed to the wastewater treatment tank 5 through a pipeline 61, the wastewater treatment tank 5 performs wastewater treatment through carbon and other substances, and the treated liquid is conveyed to the two corresponding water collection tanks 32 through corresponding suction pumps 62 (the suction pumps 62 cannot be seen due to shielding of the wastewater treatment tank 5) and the pipeline 61, so that the purification effects of the second adsorption unit 3 and the first adsorption unit 2 are improved.

The implementation principle of the embodiment is as follows: when gas is purified, the water pumps 62 on the first adsorption unit 2, the second adsorption unit 3 and the third adsorption unit 4 are started, and the gas is preliminarily adsorbed through the first adsorption unit 2. After the adsorption by the first adsorption unit 2 is completed, the adsorption is further performed by the second adsorption unit 3. After the second adsorption unit 3 finishes the adsorption, the adsorption is performed by the third adsorption unit 4, so that the gas is discharged from the gas outlet 12, and the gas is cleaner at this time.

In the process of purifying the gas, the liquid used by the third adsorption unit 4 is the liquid produced initially, and the adsorption effect is good, so that the gas adsorbed by the third adsorption unit 4 is clean and can be discharged into the outside. Meanwhile, the second adsorption unit 3 reuses the liquid in the third adsorption unit 4 through the water collecting film 31, so that the liquid is fully utilized, and meanwhile, the liquid entering the third adsorption unit 4 is cleaner. Similarly, the first adsorption unit 2 makes further use of the liquid, so that the gas entering the second adsorption unit 3 is cleaner.

Liquid passes through third adsorption element 4, and the reuse back of second adsorption element 3, first adsorption element 2 is accomodate, is handled through waste water treatment case 5, and the liquid after handling lets in water collection tank 32 of second adsorption element 3 or water collection tank 32 of third adsorption element 4, improves second adsorption element 3 and first adsorbed purification efficiency.

The embodiment of this embodiment is the utility model discloses a better, good embodiment is not according to this restriction the utility model discloses a protection scope, the event: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a tail gas treatment spray column, includes main part (1), sets up in the air inlet of main part (1) bottom, sets up in the gas outlet at top, its characterized in that: a first adsorption unit (2) is arranged at the lower part in the main body (1), a second adsorption unit (3) is arranged at the middle part in the main body (1), a third adsorption unit (4) is arranged at the top part in the main body (1), and the second adsorption unit (3) and the third adsorption unit (4) have the same structure; the second adsorption unit (3) comprises a water collection membrane (31) which is arranged in the main body (1) and used for collecting liquid, a water collection tank (32) which is arranged on the main body (1) and used for collecting the liquid on the water collection membrane (31), and a spray head (33) which is arranged in the main body (1) and connected with the water collection tank (32) through a connection, wherein the water collection tank (32) is provided with a water suction pump (62) connected with a pipeline (61); the novel adsorption device is characterized in that three packing layers (7) are arranged in the main body (1), and the packing layers (7) are respectively arranged between the first adsorption units (2) and the top of the main body (1), between the second adsorption units (3) and the first adsorption units (2) and between the second adsorption units (3) and the bottom of the main body (1).

2. The tail gas treatment spray tower of claim 1, wherein: be provided with solid fixed ring (13) of slope in main part (1), water-collecting film (31) are fixed in through the screw slope gu on fixed ring (13), the liquid that water-collecting film (31) were collected is transported to in header tank (32) through pipeline (61).

3. The tail gas treatment spray tower of claim 2, wherein: one side in the main part (1) is provided with containing box (34), the bottom of water-collecting film (31) is fixed in the opening part at the top of containing box (34), containing box (34) with water-collecting tank (32) pass through pipeline (61) and are connected.

4. The tail gas treatment spray tower of claim 1, wherein: the third adsorption unit (4) comprises a water tank (41) arranged outside the main body (1) and a nozzle (42) arranged in the main body (1), the water tank (41) is connected with the nozzle (42) through a pipeline (61), and a water suction pump (62) connected with the pipeline (61) is also arranged in the water tank (41).

5. The tail gas treatment spray tower of claim 4, wherein: a water spraying box (43) is arranged at the top in the main body (1), a plurality of nozzles (42) are arranged at the bottom of the water spraying box (43), and a pipeline (61) connected with the water tank (41) is connected to the water spraying box (43).

6. The tail gas treatment spray tower of claim 1, wherein: the filler layer (7) comprises an inner support net (71) arranged in the main body (1) and filler (72) arranged on the support net (71).

7. The tail gas treatment spray tower of claim 1, wherein: one side outside main part (1) is provided with and accomodates, handles waste water treatment case (5) to main part (1) bottom liquid.

8. The tail gas treatment spray tower of claim 7, wherein: the wastewater treatment tank (5) is connected with the water collecting tank (32) of the first adsorption unit (2) through a pipeline (61) and is connected with the water collecting tank (32) of the second adsorption unit (3) through another pipeline (61).