CN213913124U

CN213913124U - Semi-dry combined desulfurization and denitrification device

Info

Publication number: CN213913124U
Application number: CN202022948697.9U
Authority: CN
Inventors: 金木林; 林雪薇; 林英国
Original assignee: Shandong Ming Xiang Environmental Protection Technology Co ltd
Current assignee: Shandong Ming Xiang Environmental Protection Technology Co ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-08-10
Anticipated expiration: 2030-12-07

Abstract

The utility model discloses a SOx/NOx control device is united to semidry process, including treatment tank one and treatment tank two, treatment tank two is located upper end one side of treatment tank one, lower extreme one side of treatment tank two is passed through the support column and is connected with ground, the below that just is located treatment tank two between the middle part of support column is provided with the rose box, one side of rose box is provided with the intake pipe, the upper end of support ring is violently managed and is provided with a plurality of shower nozzles two, the middle part of treatment tank one is provided with baffle one, the middle part of baffle one is provided with outlet duct one, the both sides middle part of baffle one is provided with a plurality of liquid outlets, the upper end middle part of treatment tank one is provided with outlet duct two, be provided with the outlet duct three that extends to treatment tank two inside between treatment tank one and the treatment tank two, the inside packing of treatment tank two has the desulfurizer, the upper end middle part of treatment tank two is provided with outlet duct four. Has the advantages that: reach the effect of further SOx/NOx control efficiency to realize the SOx/NOx control of waste gas, guarantee the ultra-clean emission of waste gas.

Description

Semi-dry combined desulfurization and denitrification device

Technical Field

The utility model relates to a waste gas treatment technical field particularly, relates to a SOx/NOx control device is united to semidry process.

Background

China takes coal as a main primary energy source, the main utilization mode of the coal in China at present is direct combustion, the emission of sulfur dioxide, oxynitride dust and the like far exceeds the self-cleaning capacity of the environment due to huge combustion coal quantity, sulfur dioxide and oxynitride are the cause of acid rain and are the cause of photochemical smog phenomenon, personal injury can be caused due to long-time accumulation, the health of people is threatened, ecology is destroyed, the development of economy is directly influenced, along with the development of economy and the progress of technology, the requirement of China on flue gas treatment is gradually improved, and sulfur and nitrate in the flue gas need to be removed and then discharged;

however, the existing desulfurization and denitrification exhaust device has large volume and high cost, is not suitable for the treatment of middle and small boiler flue gas, has poor treatment effect on the flue gas, and has small contact area between the waste gas and a desulfurizing agent and low waste gas treatment efficiency.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

To the problem in the correlation technique, the utility model provides a SOx/NOx control device is united to semidry process to overcome the above-mentioned technical problem that current correlation technique exists.

Therefore, the utility model discloses a specific technical scheme as follows:

a semi-dry process combined desulfurization and denitrification device comprises a first treatment tank and a second treatment tank, wherein the second treatment tank is positioned on one side of the upper end of the first treatment tank, one side of the lower end of the second treatment tank is connected with the ground through a support column, a filter box is arranged between the middle parts of the support columns and below the second treatment tank, one side of the filter box is provided with an air inlet pipe, one side of the upper end of the filter box is provided with an air inlet pipe which is connected with the first treatment tank and extends into the first treatment tank, one end of the first treatment tank, which is far away from the filter box, is provided with a water pump, the middle part of the upper end of the first treatment tank is provided with a fixed ring plate, the middle part of the fixed ring plate is provided with an air port, a conical ring is arranged between the lower end of the fixed ring plate and the inner wall of the first treatment tank, and the middle part of the fixed ring plate is provided with a liquid inlet pipe connected with the water pump, the lower extreme of toper ring is provided with a plurality of shower nozzles one, the upper end middle part of fixed ring board is provided with the support ring, be provided with a plurality of shower nozzles two in violently managing the upper end of support ring, the middle part of handling jar one is provided with baffle one, the middle part of baffle one is provided with outlet duct one, the both sides middle part of baffle one is provided with a plurality of liquid outlets, it is located to handle jar one inside the below of baffle one is provided with baffle two, one side lower extreme of handling jar one is provided with the drain pipe, the upper end middle part of handling jar one is provided with outlet duct two, handle jar one with be provided with between the handling jar two and extend to the inside outlet duct three of handling jar two, the inside packing of handling jar two has the desulfurizer, the upper end middle part of handling jar two is provided with outlet duct four.

Furthermore, a first filter screen plate, limestone and a second filter screen plate are respectively arranged in the filter box, and the limestone is located between the first filter screen plate and the second filter screen plate.

Furthermore, the inner wall of the first treatment tank is located between the first partition plate and the second partition plate, a liquid level sensor is arranged between the first partition plate and the second partition plate, a drain pipe is arranged on one side of the second partition plate, and an electromagnetic valve is arranged on the drain pipe.

Furthermore, the first baffle plate is positioned at the upper end of the liquid outlet and is of a funnel-shaped structure.

Furthermore, the second air outlet pipe and the third air outlet pipe are both provided with control valves.

Furthermore, the air outlet pipe III is positioned at the top end inside the treatment tank II and is provided with an air outlet mesh cylinder cover.

The utility model provides a SOx/NOx control device is united to semidry process, beneficial effect as follows: the utility model discloses an adopt sulphur and nitre in the joint absorption waste gas of treatment tank one and treatment tank two, earlier through the contact of the waste liquid in the solid fixed ring before making waste gas and shower nozzle spun solution and reaction to can partly absorb sulphur and nitre in the waste gas, rethread desulfurizer and water smoke, thereby reach the effect of further SOx/NOx control efficiency, thereby realize the SOx/NOx control of waste gas, guarantee the ultra-clean emission of waste gas.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a semi-dry combined desulfurization and denitrification device according to an embodiment of the invention;

fig. 2 is a schematic diagram of a filter box of a semi-dry combined desulfurization and denitrification device according to an embodiment of the invention.

In the figure:

1. a first treatment tank; 2. a second treatment tank; 3. a support pillar; 4. a filter box; 5. an air inlet pipe; 6. entering an air pipe; 7. a water pump; 8. a stationary ring plate; 9. a gas port; 10. a conical ring; 11. a liquid inlet pipe; 12. a first spray nozzle; 13. a support ring; 14. a second spray head; 15. a first clapboard; 16. a first air outlet pipe; 17. a liquid outlet; 18. a second clapboard; 19. a liquid outlet pipe; 20. a second air outlet pipe; 21. a third gas outlet pipe; 22. a desulfurizing agent; 23. A fourth air outlet pipe; 24. a liquid level sensor; 25. a drain pipe; 26. a control valve; 27. an air outlet net cylinder cover.

Detailed Description

For further explanation of the embodiments, the drawings are provided as part of the disclosure and serve primarily to illustrate the embodiments and, together with the description, to explain the principles of operation of the embodiments, and to provide further explanation of the invention and advantages thereof, it will be understood by those skilled in the art that various other embodiments and advantages of the invention are possible, and that elements in the drawings are not to scale and that like reference numerals are generally used to designate like elements.

According to the utility model discloses an embodiment provides a SOx/NOx control device is united to semidry method.

The first embodiment is as follows:

as shown in fig. 1-2, the semi-dry method combined desulfurization and denitrification apparatus according to the embodiment of the present invention comprises a first treatment tank 1 and a second treatment tank 2, wherein the second treatment tank 2 is located at one side of the upper end of the first treatment tank 1, one side of the lower end of the second treatment tank 2 is connected with the ground through a support column 3, a filter box 4 is arranged between the middle parts of the support columns 3 and below the second treatment tank 2, an air inlet pipe 5 is arranged at one side of the filter box 4, an air inlet pipe 6 connected with the first treatment tank 1 and extending into the first treatment tank 1 is arranged at one side of the upper end of the filter box 4, a water pump 7 is arranged at one end of the first treatment tank 1 far away from the filter box 4, a fixed ring plate 8 is arranged at the middle part of the upper end of the first treatment tank 1, an air port 9 is arranged at the middle part of the fixed ring plate 8, a tapered ring 10 is arranged between the lower end of the fixed ring plate 8 and the inner wall of the first treatment tank 1, a liquid inlet pipe 11 connected with the water pump 7 is arranged in the middle of the fixed ring plate 8, a plurality of first spray nozzles 12 are arranged at the lower end of the conical ring 10, a support ring 13 is arranged in the middle of the upper end of the fixed ring plate 8, a plurality of second spray nozzles 14 are arranged in a horizontal pipe at the upper end of the support ring 13, a first partition plate 15 is arranged in the middle of the first treatment tank 1, a first air outlet pipe 16 is arranged in the middle of the first partition plate 15, a plurality of liquid outlets 17 are arranged in the middle of two sides of the first partition plate 15, a second partition plate 18 is arranged below the first partition plate 15 in the first treatment tank 1, a liquid outlet pipe 19 is arranged at the lower end of one side of the first treatment tank 1, a second air outlet pipe 20 is arranged in the middle of the upper end of the first treatment tank 1, a third air outlet pipe 21 extending to the inside of the second treatment tank 2 is arranged between the, and the middle part of the upper end of the second treatment tank 2 is provided with a fourth air outlet pipe 23.

Example two:

as shown in fig. 1-2, a first filter screen plate, limestone and a second filter screen plate are respectively arranged inside the filter box 4, and the limestone is located between the first filter screen plate and the second filter screen plate. A liquid level sensor 24 is arranged on the inner wall of the first treatment tank 1 and between the first partition plate 15 and the second partition plate 18, a drain pipe 25 is arranged on one side of the second partition plate 18, and an electromagnetic valve is arranged on the drain pipe 25.

As shown in fig. 1-2, the first partition 15 is located at the upper end of the liquid outlet 17 and has a funnel-shaped structure. And the second air outlet pipe 20 and the third air outlet pipe 21 are both provided with control valves 26. And the third air outlet pipe 21 is positioned at the top end inside the second treatment tank 2 and is provided with an air outlet mesh cylinder cover 27.

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

In practical application, a calcium hydroxide aqueous solution is brought into a connecting pipe in a fixed ring plate 8 through a water pump 7, liquid enters branch pipes uniformly arranged on the inner side of the connecting pipe and is sprayed out from a first spray head 12 and a second spray head 14, waste gas is contacted with the liquid to generate a chemical reaction to absorb sulfur and nitre in the waste gas, so that desulfurization and denitrification of the waste gas are realized, ultra-clean discharge of the waste gas is ensured, diffusion of gas is limited through a conical baffle ring to enable the gas to react with the solution more fully, the calcium hydroxide aqueous solution sprayed out of the spray heads is reacted with the waste gas and then flows into the calcium hydroxide aqueous solution on a partition plate 18 from a liquid outlet 17 on the partition plate first 15, so that the waste gas is contacted with the calcium hydroxide aqueous solution before reacting with the solution sprayed out of the first spray head 12 and the second spray head 14, a part of sulfur and nitre in the waste gas can be absorbed, fine dust in the waste gas can be filtered, and resource recycling is realized, and when the water level is too high, the water is drained under the action of the drain pipe 25 through the liquid level sensor 24, so that the gas leakage caused by the side pipe at the top end is avoided. The treated gas can be discharged through the second outlet pipe 20, if the discharge does not meet the requirement, the third outlet pipe 21 can be opened to enable the gas to enter the second treatment tank 2, the gas enters the desulfurizer 22 through the gas outlet net cylinder cover 27 and upwards from the bottom, so that the effect of prolonging the contact time of the waste gas and the desulfurizer 22 is achieved, the contact area of the waste gas and the desulfurizer 22 is increased, the desulfurization efficiency is increased, the desulfurizer is calcium oxide, the gas in the third outlet pipe 21 contains water mist in the first treatment pipe 1 and generates calcium hydroxide when contacting the desulfurizer 22, the calcium hydroxide reacts with sulfur dioxide in the waste gas to produce calcium sulfate, the effect of further desulfurization is achieved, the contact area of water and the desulfurizer is increased, the reaction rate is increased, the absorption rate of sulfides in the waste gas is increased, and the desulfurization efficiency is increased.

To sum up, with the help of the utility model discloses an above-mentioned technical scheme, through adopting sulphur and nitre in the joint absorption waste gas of treatment tank 1 and treatment tank two 2, earlier through the contact of waste liquid in the retaining ring before making waste gas and shower nozzle spun solution and reaction to can partly absorb sulphur and nitre in the waste gas, rethread desulfurizer 22 and water smoke, thereby reach the effect of further SOx/NOx control efficiency, thereby realize the SOx/NOx control of waste gas, guarantee the ultra-clean emission of waste gas.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The semi-dry combined desulfurization and denitrification device is characterized by comprising a first treatment tank (1) and a second treatment tank (2), wherein the second treatment tank (2) is positioned on one side of the upper end of the first treatment tank (1), one side of the lower end of the second treatment tank (2) is connected with the ground through a support column (3), a filter box (4) is arranged between the middle parts of the support columns (3) and below the second treatment tank (2), an air inlet pipe (5) is arranged on one side of the filter box (4), an air inlet pipe (6) connected with the first treatment tank (1) and extending into the first treatment tank (1) is arranged on one side of the upper end of the filter box (4), a water pump (7) is arranged at one end, far away from the filter box (4), of the first treatment tank (1), and a fixed ring plate (8) is arranged in the middle part of the upper end of the first treatment tank (1), the middle part of the fixed ring plate (8) is provided with an air port (9), a conical ring (10) is arranged between the lower end of the fixed ring plate (8) and the inner wall of the first treatment tank (1), the middle part of the fixed ring plate (8) is provided with a liquid inlet pipe (11) connected with the water pump (7), the lower end of the conical ring (10) is provided with a plurality of first spray nozzles (12), the middle part of the upper end of the fixed ring plate (8) is provided with a support ring (13), the upper end transverse pipe of the support ring (13) is provided with a plurality of second spray nozzles (14), the middle part of the first treatment tank (1) is provided with a first partition plate (15), the middle part of the first partition plate (15) is provided with a first outlet pipe (16), the middle parts of two sides of the first partition plate (15) are provided with a plurality of liquid outlet holes (17), the inner part of the first treatment tank (1) is positioned below the first partition plate (15) and is provided with a second partition plate (18), the one side lower extreme of processing jar (1) is provided with drain pipe (19), the upper end middle part of processing jar (1) is provided with outlet duct two (20), processing jar one (1) with be provided with between processing jar two (2) and extend to processing jar two (2) inside outlet duct three (21), the inside packing of processing jar two (2) has desulfurizer (22), the upper end middle part of processing jar two (2) is provided with outlet duct four (23).

2. The semi-dry combined desulfurization and denitrification apparatus according to claim 1, wherein a first filter screen plate, limestone and a second filter screen plate are respectively arranged inside the filter box (4), and the limestone is positioned between the first filter screen plate and the second filter screen plate.

3. The semi-dry combined desulfurization and denitrification device according to claim 1, wherein a liquid level sensor (24) is arranged on the inner wall of the first treatment tank (1) and between the first partition plate (15) and the second partition plate (18), a drain pipe (25) is arranged on one side of the second partition plate (18), and an electromagnetic valve is arranged on the drain pipe (25).

4. The semi-dry combined desulfurization and denitrification apparatus according to claim 1, wherein the first partition plate (15) is in a funnel-shaped structure at the upper end of the liquid outlet (17).

5. The semi-dry combined desulfurization and denitrification apparatus according to claim 1, wherein a control valve (26) is arranged on each of the second outlet pipe (20) and the third outlet pipe (21).

6. The semi-dry combined desulfurization and denitrification device according to claim 1, wherein an air outlet mesh cylinder cover (27) is arranged at the top end of the air outlet pipe III (21) in the treatment tank II (2).