CN211999107U

CN211999107U - High-efficiency ammonia nitrogen stripping tower

Info

Publication number: CN211999107U
Application number: CN202020264656.5U
Authority: CN
Inventors: 刘康华; 任海峰
Original assignee: Wuxi Qingnuo Environmental Engineering Co Ltd
Current assignee: Wuxi Qingnuo Environmental Engineering Co Ltd
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-11-24
Anticipated expiration: 2030-03-06

Abstract

The utility model relates to a high-efficiency ammonia nitrogen stripping tower, which comprises a tower body, wherein an air inlet pipe is arranged on the tower body, one end of the air inlet pipe, which is far away from the tower body, is connected with an air blower, the top end of the tower body is provided with an exhaust pipe, a purification component is arranged inside the tower body, the purification component comprises two placing plates which are parallel to each other, the packing layer of setting between placing the board, place and be equipped with a plurality of evenly distributed's the hole of wearing on the board, be equipped with mounting hole one and mounting hole two on the lateral wall of tower body, wear to be equipped with the water injection pipe in the mounting hole one, the inside bottom of tower body is equipped with the collecting vat, connect on the collecting vat and be equipped with the back flow, the back flow runs through the tower body and extends to the tower body outside, the one end that the collecting vat was kept away from to the back flow passes mounting hole two and extends to inside the tower body, be equipped with the suction pump on the back flow, be connected with. The utility model discloses have and to carry out high-efficient purification, the little effect of area to the ammonia nitrogen in the waste water.

Description

High-efficiency ammonia nitrogen stripping tower

Technical Field

The utility model relates to a waste water treatment equipment's technical field especially relates to a high-efficient ammonia nitrogen blows and takes off tower.

Background

At present, with the social development, the problems of water resource shortage and environmental pollution are more and more serious, and the treatment of sewage and wastewater is particularly important. In the wastewater treatment, some wastewater contains ammonia nitrogen with higher concentration, and the water quality requirement of the treatment is difficult to achieve by adopting a biochemical treatment process, so the wastewater containing more ammonia nitrogen usually needs to be pretreated. Currently, the most common sewage pretreatment process is the stripping method. The stripping is to make free ammonia nitrogen escape from water in a physical mode, and most of the stripping adopts air stripping to convert the free ammonia nitrogen dissolved in sewage from a liquid phase to a gas phase and remove the free ammonia nitrogen from the liquid phase.

At present, the blowing-off equipment mostly adopts an enhanced blowing-off pool and a tower type blowing-off device, the enhanced blowing-off pool occupies a large area and is easy to pollute the atmosphere; tower type stripping device mostly adopts the stripping tower, during the use, thereby generally get up a plurality of stripping tower concatenations and improve stripping efficiency, and its processing procedure is: waste water sprays and down from the top of the stripping tower, and the air blower blows in the air from the bottom of the stripping tower, and a certain amount of filler is filled in the stripping tower, so that the air and the waste water are in contact with each other at the filler, thereby stripping the ammonia nitrogen in the waste water, and discharging the ammonia nitrogen stripped from the top of the stripping tower.

Chinese patent No. CN203625192U discloses a high ammonia nitrogen wastewater fluidization air stripping treatment device, which comprises a fluidization air stripping tower, wherein a wastewater distributor is arranged at the upper part in the tower body of the fluidization air stripping tower, the wastewater distributor is connected with a wastewater inlet, and the high ammonia nitrogen wastewater is introduced into the wastewater inlet and then uniformly distributed in the fluidization air stripping tower through the wastewater distributor; the waste water distributor is one of a corrosion-resistant large-resistance water distribution plate or a perforated pipe; an air inlet and a waste water outlet are arranged at the bottom in the tower body of the fluidization air stripping tower, and a waste gas outlet is arranged at the top of the tower body of the fluidization air stripping tower; an air distribution bearing plate is arranged at the lower part in the tower body of the fluidization stripping tower, and particle fillers are filled on the air distribution bearing plate; the gas distribution bearing plate is a corrosion-resistant high-resistance gas distribution plate with mechanical strength.

The above prior art solutions have the following drawbacks: when in use, the wastewater can only pass through the filler particles once, so that free ammonia in the wastewater is not easy to completely remove from a liquid phase, and the ammonia nitrogen in the wastewater can not be thoroughly treated; if the ammonia nitrogen is removed more completely, a plurality of treatment devices are required to be connected in series, which occupies a larger space and cannot be used in some occasions with smaller space.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high-efficient ammonia nitrogen blows and takes off tower, has the effect that can carry out high-efficient purification, area is little to the ammonia nitrogen in the waste water.

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

a high-efficiency ammonia nitrogen stripping tower comprises a tower body, wherein an air inlet pipe is arranged on the tower body, one end, far away from the tower body, of the air inlet pipe is connected with an air blower, an exhaust pipe is arranged at the top end of the tower body, a purification assembly is arranged inside the tower body and comprises two mutually parallel placing plates and a packing layer arranged between the placing plates, the placing plates are horizontally arranged, a plurality of uniformly distributed water penetrating holes are formed in the placing plates, a first mounting hole and a second mounting hole are formed in the side wall of the tower body, the first mounting hole and the second mounting hole are both positioned above the purification assembly, the second mounting hole is positioned below the first mounting hole, a water injection pipe is arranged in the first mounting hole in a penetrating manner, a plurality of uniformly distributed spray heads are arranged on the water injection pipe, a collecting tank is arranged at the bottom inside the tower body, a backflow pipe is connected to the collecting, the one end that the collecting vat was kept away from to the back flow passes inside mounting hole two extends to the tower body, be equipped with the suction pump on the back flow, the part that the back flow is located the tower body is equipped with a plurality of evenly distributed's shower nozzle, be connected with the drain pipe on the collecting vat, the drain pipe runs through the tower body and extends to the tower body outside, be equipped with solenoid valve one on the water injection pipe, be equipped with solenoid valve two on the drain pipe.

By adopting the technical scheme, when in use, the second electromagnetic valve is closed, the water suction pump is started, the air blower is started to blow air into the tower body, the electromagnetic valves are opened for a period of time and then closed, a certain amount of wastewater enters the tower body through the water injection pipe and the spray nozzle, the wastewater falls onto the purification assembly from the spray nozzle and enters the packing layer through the water penetration hole, the wastewater is fully contacted with the air in the packing layer to blow off ammonia nitrogen in the wastewater, the blown ammonia nitrogen moves upwards and is discharged out of the tower body from the exhaust pipe, the wastewater after the blowing off falls into the collecting tank, the water suction pump sucks the wastewater in the collecting tank into the return pipe, the wastewater is sprayed out from the return pipe through the spray nozzle and falls onto the purification assembly again to be blown off and purified again, after the process lasts for a period of time, the ammonia nitrogen in the wastewater can be completely purified, the water suction pump is closed, and the second electromagnetic valve is opened, after the wastewater is completely discharged, the above process is repeated, and new wastewater is continuously purified. In conclusion, the high-efficiency ammonia nitrogen stripping tower can ensure the purification efficiency and does not need to be connected in series for use, so that the high-efficiency ammonia nitrogen stripping tower has the effects of high-efficiency purification of ammonia nitrogen in wastewater and small occupied area.

The present invention may be further configured in a preferred embodiment as: the purification subassembly is equipped with a plurality ofly, and is a plurality of purification subassembly is parallel to each other.

By adopting the technical scheme, the effect of improving the air stripping purification efficiency is achieved.

The present invention may be further configured in a preferred embodiment as: the tower body is internally provided with an adsorption component, and the adsorption component comprises two filter screens which are parallel to each other and an activated carbon layer arranged between the two filter screens.

Through adopting above-mentioned technical scheme, waste water is when adsorbing the subassembly, and the impurity of aquatic can be adsorbed by activated carbon layer, plays the effect that improves the purification efficiency to waste water.

The present invention may be further configured in a preferred embodiment as: the tower body is internally provided with a plurality of liquid distributors, and the liquid distributors are respectively positioned above the purification component and the adsorption component.

Through adopting above-mentioned technical scheme, make waste water distribute more evenly on purification subassembly and adsorption component, improve the purifying effect of waste water.

The present invention may be further configured in a preferred embodiment as: the water injection pipe passes through the axis of tower body, the one end that the collecting vat was kept away from to the back flow is through the axis of tower body.

Through adopting above-mentioned technical scheme, what make waste water from water injection pipe and back flow blowout time ability be even drops on the surface of liquid distributor to be convenient for waste water evenly distributed on purification subassembly and adsorption component.

The present invention may be further configured in a preferred embodiment as: the side wall of the collecting groove is completely attached to the inner wall of the tower body.

Through adopting above-mentioned technical scheme, have the effect that improves the collecting efficiency of collecting vat to waste water.

The present invention may be further configured in a preferred embodiment as: and sealing rings are arranged on the inner side walls of the first mounting hole and the second mounting hole, and are respectively clamped by the inner walls of the water injection pipe and the first mounting hole and the inner walls of the return pipe and the second mounting hole.

Through adopting above-mentioned technical scheme, improve the seal of tower body, have the effect that prevents waste water and ooze.

The present invention may be further configured in a preferred embodiment as: the tower body is internally provided with a demister, and the demister is positioned between the water injection pipe and the exhaust pipe.

Through adopting above-mentioned technical scheme, will follow the drop of water that is included in the ammonia nitrogen gas that blows off from the waste water and detach, be convenient for carry out recycle to ammonia nitrogen gas.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the utility model can circularly blow off and purify the waste water in the tower body by arranging the purification component, the collecting tank, the return pipe and the water pump, thereby having the effects of efficiently purifying the ammonia nitrogen in the waste water and having small occupied area;

2. the utility model can adsorb the impurities in the wastewater by arranging the adsorption component, and has the function of improving the purification effect of the wastewater;

3. the utility model discloses a set up the sealing washer, have the leakproofness that improves the tower body, prevent the effect that waste water oozes.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a high-efficiency ammonia nitrogen stripping tower used in the embodiment.

Fig. 2 is an enlarged view of a portion a in fig. 1.

FIG. 3 is a schematic diagram of the internal structure of a high-efficiency ammonia nitrogen stripping tower used in the embodiment.

In the figure, 1, a tower body; 2. an air inlet pipe; 3. a blower; 4. an exhaust pipe; 5. a purification assembly; 51. placing the plate; 52. a filler layer; 6. a water penetration hole; 7. a first mounting hole; 8. a second mounting hole; 9. a water injection pipe; 10. a spray head; 11. collecting tank; 12. a return pipe; 13. a water pump; 14. a drain pipe; 15. a first electromagnetic valve; 16. a second electromagnetic valve; 17. an adsorption component; 171. a filter screen; 172. an activated carbon layer; 18. a seal ring; 19. a demister; 20 liquid distributor.

Detailed Description

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

Example (b): referring to fig. 1 and 3, for the utility model discloses a high-efficient ammonia nitrogen blows and takes off tower, including tower body 1, tower body 1 is hollow cylinder, and the welding of the vertical lateral wall of tower body 1 upper level has intake pipe 2, and the vertical welding of upper surface of tower body 1 has blast pipe 4, and the one end that tower body 1 was kept away from to intake pipe 2 is connected with air-blower 3, starts air-blower 3, and accessible intake pipe 2 blows in the air to tower body 1. The tower body 1 is internally provided with a purification assembly 5, the purification assembly 5 comprises a placing plate 51 and a packing layer 52, the placing plate 51 is welded on the inner wall of the tower body 1, the two placing plates 51 are arranged, the two placing plates 51 are horizontally arranged and are mutually parallel, and the placing plates 51 are provided with a plurality of water penetrating holes 6 which are uniformly distributed; the filler layer 52 is composed of filler particles, and the filler layer 52 is filled between the two placement plates 51, and the size of the filler particles is larger than the size of the water penetration holes 6.

Referring to fig. 1 and 2, a first mounting hole 7 and a second mounting hole 8 are formed in the same vertical side wall of the tower body 1, the first mounting hole 7 and the second mounting hole 8 are located on the same vertical straight line, the first mounting hole 7 is located above the second mounting hole 8, and the first mounting hole 7 and the second mounting hole 8 are located above the purification assembly 5. A water injection pipe 9 used for injecting wastewater into the tower body 1 is inserted into the first mounting hole 7, a plurality of uniformly distributed spray heads 10 are arranged on the water injection pipe 9, and a first electromagnetic valve 15 used for controlling the on-off of the water injection pipe 9 is arranged on the water injection pipe 9. The bottom in the tower body 1 is equipped with the collecting vat 11 that is used for collecting waste water, and the welding is equipped with back flow 12 on the lateral wall of collecting vat 11, and back flow 12 runs through the tower body 1 lateral wall and extends to outside the tower body 1, and back flow 12 is kept away from the one end of collecting vat 11 and is inserted in mounting hole two 8 and deepen in the tower body 1, is equipped with suction pump 13 on the back flow 12, and back flow 12 is located and is equipped with a plurality of evenly distributed's shower nozzle 10 on the part in the. A drain pipe 14 is welded on the side wall of the collecting tank 11, the drain pipe 14 penetrates through the side wall of the tower body 1 and extends to the outer side of the tower body 1, and a second electromagnetic valve 16 for controlling the on-off of the drain pipe 14 is arranged on the drain pipe 14.

Referring to fig. 1 and 3, when the water injection device is used, the second electromagnetic valve 16 is closed to seal the water discharge pipe 14, the blower 3 is started to inject air into the tower body 1, the first electromagnetic valve 15 is opened to enable waste water to enter the water injection pipe 9, and the first electromagnetic valve 15 is closed after a certain amount of waste water is injected into the tower body 1. The waste water is sprayed out from the spray head 10 on the water injection pipe 9 and falls on the placing plate 51, and flows into the packing layer 52 from the water penetration port, the waste water is fully contacted with the air in the packing layer 52, so that ammonia nitrogen in the waste water is blown out from the water, the ammonia nitrogen in the waste water is changed into ammonia nitrogen gas and is discharged from the exhaust pipe 4, and the waste water is purified; the waste water that finishes of purification continues to fall and finally falls into to collect in collecting tank 11 and collects, starts suction pump 13, and waste water in the collecting tank 11 is inhaled in the back flow pipe 12 to in shower nozzle 10 on the back flow pipe 12 returns tower body 1 again, then realize blowing off through packing layer 52 once more and purify, thereby can improve the purification efficiency to waste water, make the more thorough of ammonia nitrogen purification in the waste water. After the process lasts for a period of time, the water suction pump 13 is closed, the second electromagnetic valve 16 is opened to conduct the water discharge pipe 14, the purified wastewater in the collecting tank 11 can be discharged from the water discharge pipe 14, and then the process is repeated to blow off the wastewater newly entering the tower body 1. Because waste water can pass packing layer 52 many times in tower body 1, consequently can improve the purifying effect to the ammonia nitrogen in the waste water to need not use a plurality of high-efficient ammonia nitrogen air stripping tower concatenations, have can carry out high-efficient purification, the little advantage of area to the ammonia nitrogen in the waste water.

Referring to fig. 3, two purification assemblies 5 are provided, the two purification assemblies 5 are arranged in parallel with each other, and the two purification assemblies 5 are both located below the water injection pipe 9. Because two purification assemblies 5 are arranged, the wastewater needs to pass through two packing layers 52 in the process of falling once, so that the wastewater is blown off and purified twice, and the purification efficiency and the purification effect of the wastewater are improved.

Referring to fig. 3, be equipped with in the tower body 1 and be used for carrying out absorbent adsorption component 17 to the impurity in the waste water, adsorption component 17 includes filter screen 171 and activated carbon layer 172, and two filter screen 171 welds on the tower body 1 inner wall, and two filter screen 171 are parallel to each other and the level sets up, and activated carbon layer 172 comprises activated carbon particle, and activated carbon layer 172 fills between two filter screen 171, and activated carbon particle's size is greater than the size of the filtration pore on the filter screen 171. The adsorption module 17 is disposed between the return pipe 12 and the purification module 5. When waste water falls onto adsorption element 17, can stretch into activated carbon layer 172 from filter screen 171 in, activated carbon layer 172 can adsorb the impurity in the waste water, plays the effect that improves the purifying effect to waste water.

Referring to fig. 3, three liquid distributors 20 are arranged in the tower body 1, the three liquid distributors 20 are bolted to the inner wall of the tower body 1, and the three liquid distributors 20 are respectively located above the purification component 5 and the two adsorption components 17. Because the liquid distributor 20 is arranged, the wastewater falls on the liquid distributor 20 and then can be uniformly distributed on the purification component 5 and the adsorption component 17, so that the wastewater is more uniformly contacted with the activated carbon layer 172 and the packing layer 52, and the effect of improving the air stripping purification effect on the wastewater is achieved.

Referring to fig. 1 and 2, the water injection pipe 9 passes through the central axis of the tower body 1, and the end of the return pipe 12 remote from the collection tank 11 also passes through the central axis of the tower body 1. Through the above arrangement, the wastewater can be more uniformly scattered on the liquid distributor 20, so that the wastewater is more uniformly contacted with the activated carbon layer 172 and the packing layer 52, and the effect of improving the blowing-off effect on the wastewater is achieved.

Referring to fig. 3, in order to make collecting vat 11 can collect the waste water that falls from tower body 1 top completely, collecting vat 11's lateral wall and tower body 1's inner wall laminate completely, play the collecting vat 11 of being convenient for and carry out the effect of collecting to waste water.

Referring to fig. 1 and 2, since there may be gaps between the first mounting hole 7 and the water injection pipe 9 and between the second mounting hole 8 and the return pipe 12, waste water may seep out of the gaps, and in order to avoid the above situation, sealing rings 18 are bonded to the inner walls of the first mounting hole 7 and the second mounting hole 8, and the two sealing rings 18 are respectively clamped by the inner walls of the water injection pipe 9 and the first mounting hole 7 and the inner walls of the return pipe 12 and the second mounting hole 8. The sealing ring 18 can fill the gap between the water injection pipe 9 and the first mounting hole 7 and the gap between the return pipe 12 and the second mounting hole 8, thereby improving the sealing performance of the tower body 1.

Referring to fig. 3, a demister 19 is bolted to the inner wall of the tower body 1, and the demister 19 is horizontally disposed between the water injection pipe 9 and the exhaust pipe 4. Waste water blows off and accomplishes the back, and the free ammonia nitrogen breaks away from and becomes ammonia nitrogen gas from waste water, can carry certain water droplet in the ammonia nitrogen gas, owing to set up demister 19, ammonia nitrogen gas can pass through demister 19 before getting into blast pipe 4, and demister 19 can detach the internal moisture of ammonia nitrogen gas, is convenient for carry out recycle from blast pipe 4 exhaust ammonia nitrogen gas.

The implementation principle of the embodiment is as follows: when the device is used, the air blower 3 is started to blow air into the tower body 1, the second electromagnetic valve 16 is closed to seal the drain pipe 14, the first electromagnetic valve 15 is opened to inject a certain amount of wastewater into the tower body 1 from the water injection pipe 9, then the first electromagnetic valve 15 is closed to stop injecting the wastewater, the wastewater is sprayed out from the spray head 10 and then sequentially passes through the adsorption component 17 and the two purification components 5 from top to bottom in the tower body 1, impurities in the wastewater are adsorbed by the activated carbon layer 172 when the wastewater passes through the adsorption component 17, the wastewater is fully contacted with the air in the packing layer 52 when the wastewater passes through the purification components 5, ammonia nitrogen in the wastewater is blown out from the water and is changed into ammonia nitrogen gas, the ammonia nitrogen gas moves upwards to pass through the demister 19 to be discharged from the exhaust pipe 4, the blown-off purified wastewater falls into the collecting tank 11 to be collected, the water suction pump 13 is started, and, then the waste water enters the tower body 1 again through the spray head 10 on the return pipe 12, and is adsorbed and blown off for purification again, thereby improving the purification effect of ammonia nitrogen in the waste water and leading the waste water to be purified more thoroughly. After the process lasts for a period of time, the wastewater in the tower body 1 is completely purified, the water suction pump 13 is closed, the second electromagnetic valve 16 is opened to enable the drain pipe 14 to be communicated, the wastewater in the water collecting tank is discharged from the drain pipe 14, after the wastewater is completely discharged, the whole process can be repeated, and the wastewater which newly enters the tower body 1 is continuously purified. To sum up, the utility model discloses can high-efficiently blow off ammonia nitrogen, need not get up a plurality of polyphones again and use, consequently have can carry out high-efficient purification, the little effect of area to the ammonia nitrogen in the waste water.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: 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 high-efficient ammonia nitrogen blows and takes off tower, includes tower body (1), be equipped with intake pipe (2) on tower body (1), the one end that tower body (1) were kept away from in intake pipe (2) is connected with air-blower (3), the top of tower body (1) is equipped with blast pipe (4), its characterized in that: the purifying device is characterized in that a purifying component (5) is arranged in the tower body (1), the purifying component (5) comprises two mutually parallel placing plates (51) and a packing layer (52) arranged between the placing plates (51), the placing plates (51) are horizontally arranged, a plurality of uniformly distributed water penetrating holes (6) are formed in the placing plates (51), a first mounting hole (7) and a second mounting hole (8) are formed in the side wall of the tower body (1), the first mounting hole (7) and the second mounting hole (8) are both positioned above the purifying component (5), the second mounting hole (8) is positioned below the first mounting hole (7), a water injection pipe (9) is penetrated in the first mounting hole (7), a plurality of uniformly distributed spray heads (10) are arranged on the water injection pipe (9), a collecting tank (11) is arranged at the bottom in the tower body (1), and a return pipe (12) is connected to the collecting tank (11), back flow (12) run through tower body (1) and extend to the tower body (1) outside, the one end that collecting vat (11) were kept away from in back flow (12) passes mounting hole two (8) and extends to tower body (1) inside, be equipped with suction pump (13) on back flow (12), the part that back flow (12) are located tower body (1) is equipped with a plurality of evenly distributed's shower nozzle (10), be connected with drain pipe (14) on collecting vat (11), drain pipe (14) run through tower body (1) and extend to tower body (1) outside, be equipped with solenoid valve (15) on water injection pipe (9), be equipped with solenoid valve two (16) on drain pipe (14).

2. The high-efficiency ammonia nitrogen stripping tower according to claim 1, characterized in that: the purification component (5) is provided with a plurality of purification components (5) which are parallel to each other.

3. The high-efficiency ammonia nitrogen stripping tower according to claim 2, characterized in that: be equipped with adsorption component (17) in tower body (1), adsorption component (17) include two filter screens (171) that are parallel to each other, set up activated carbon layer (172) between two filter screens (171).

4. The high-efficiency ammonia nitrogen stripping tower according to claim 3, characterized in that: be equipped with a plurality of liquid distributor (20) in tower body (1), it is a plurality of liquid distributor (20) are located the top of purifying component (5) and adsorption component (17) respectively.

5. The high-efficiency ammonia nitrogen stripping tower according to claim 1, characterized in that: the water injection pipe (9) is through the axis of tower body (1), the one end that collecting vat (11) were kept away from in back flow (12) is through the axis of tower body (1).

6. The high-efficiency ammonia nitrogen stripping tower according to claim 1, characterized in that: the side wall of the collecting groove (11) is completely attached to the inner wall of the tower body (1).

7. The high-efficiency ammonia nitrogen stripping tower according to claim 1, characterized in that: and sealing rings (18) are arranged on the inner side walls of the first mounting hole (7) and the second mounting hole (8), and the two sealing rings (18) are respectively clamped by the inner walls of the water injection pipe (9) and the first mounting hole (7) and the inner walls of the return pipe (12) and the second mounting hole (8).

8. The high-efficiency ammonia nitrogen stripping tower according to claim 1, characterized in that: a foam remover (19) is arranged in the tower body (1), and the foam remover (19) is positioned between the water injection pipe (9) and the exhaust pipe (4).