CN211987915U

CN211987915U - A SOx/NOx control absorption tower for flue gas is handled

Info

Publication number: CN211987915U
Application number: CN201921856699.6U
Authority: CN
Inventors: 缪晓东
Original assignee: Suzhou Liyi Environmental Technology Co ltd
Current assignee: Suzhou Liyi Environmental Technology Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-11-24
Anticipated expiration: 2029-10-31

Abstract

The utility model discloses a SOx/NOx control absorption tower for flue gas is handled, including the reaction absorption tower, one side of reaction absorption tower is provided with the flue gas admission pipe, be provided with the pre-heater on the flue gas admission pipe, bottom in the reaction absorption tower is provided with the denitration thick liquid pond, the top in denitration thick liquid pond is provided with the desulfurization thick liquid pond, one side in desulfurization thick liquid pond is provided with actuating mechanism, actuating mechanism's one end just is located and is provided with a plurality of stirring leaves in the desulfurization thick liquid pond, one side that the pre-heater was kept away from in the reaction absorption tower is provided with the desulfurization circulating pump, one side of desulfurization circulating pump is provided with the denitration circulating pump, the top in desulfurization thick liquid pond just is located and evenly is provided with a plurality of desulfurization nozzles on the inner wall of reaction absorption tower, between desulfurization nozzle and the desulfurization circulating pump and between denitration thick. Has the advantages that: therefore, when the amount of flue gas is small, the electromagnetic valve is driven to close the plurality of desulfurization nozzles, and the use of desulfurization slurry can be reduced.

Description

A SOx/NOx control absorption tower for flue gas is handled

Technical Field

The utility model relates to a SOx/NOx control absorption tower field particularly, relates to a SOx/NOx control absorption tower for flue gas is handled.

Background

An absorption tower is a device that performs an absorption operation. The liquid-gas phase contact state can be divided into three types. The first type is a plate tower, a bubbling absorption tower and a stirring bubbling absorption tower, wherein gas is dispersed in a liquid phase in a bubble form; the second type is an ejector, a venturi, a spray tower in which liquid is dispersed in a gas phase in the form of droplets; the third type is a packed absorption column and a falling film absorption column in which liquid contacts with a gas phase in a film-like motion. The gas-liquid two-phase flow mode in the tower can be countercurrent or cocurrent. Usually, a countercurrent operation is adopted, the absorbent flows from top to bottom in the tower top, and contacts with the gas flowing from bottom to top, the liquid absorbed with the absorbent is discharged from the bottom of the tower, and the purified gas is discharged from the top of the tower.

Desulfurization denitration absorption tower is handled to current flue gas through setting up two sets of a plurality of desulfurization nozzles along desulfurization pipe symmetric distribution, sprays the thick liquid, carries out the desulfurization operation to the flue gas. When the flue gas is more, two rows of desulfurization nozzles spray the desulfurization thick liquid simultaneously, can carry out fine desulfurization operation to the flue gas, but when the flue gas is less, two rows of desulfurization nozzles simultaneous working spray the desulfurization thick liquid, can cause the waste of desulfurization thick liquid, can not carry out appropriate regulation according to how much of flue gas volume.

SUMMERY OF THE UTILITY MODEL

To the problem in the correlation technique, the utility model provides a SOx/NOx control absorption tower for flue gas treatment to overcome the above-mentioned technical problem that current correlation technique exists.

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

a desulfurization and denitrification absorption tower for flue gas treatment comprises a reaction absorption tower, wherein a flue gas inlet pipe is arranged on one side of the reaction absorption tower, a preheater is arranged on the flue gas inlet pipe, a denitrification slurry pool is arranged at the bottom in the reaction absorption tower, a desulfurization slurry pool is arranged at the top end of the denitrification slurry pool, a driving mechanism is arranged on one side of the desulfurization slurry pool, one end of the driving mechanism is positioned in the desulfurization slurry pool and is provided with a plurality of stirring blades, a desulfurization circulating pump is arranged on one side of the reaction absorption tower away from the preheater, a denitrification circulating pump is arranged on one side of the desulfurization circulating pump, a plurality of desulfurization nozzles are uniformly arranged above the desulfurization slurry pool and on the inner wall of the reaction absorption tower, and the desulfurization nozzles and the desulfurization circulating pump as well as the desulfurization circulating pump and the denitrification slurry pool are respectively connected through desulfurization pipes, one side of desulfurization nozzle is provided with adjusting device, the top of desulfurization nozzle just is located be provided with defroster I in the reaction absorption tower, the top of defroster I is provided with defroster II, defroster II with evenly be provided with a plurality of denitration shower nozzles between the defroster I, the denitration shower nozzle with between the denitration circulating pump with all through the denitration union coupling respectively between the denitration slurry pond, the desulfurization nozzle through desulfurization divide manage with the desulfurization union coupling, the below of denitration shower nozzle is provided with the collection board, the below of collection board is provided with rather than matched with collecting tray, the intermediate position of collecting tray is provided with collects the shell, the bottom of collecting the shell is provided with rather than matched with collecting pipe.

Further, in order to purify the flue gas, a filter bag is arranged between the preheater and the reaction absorption tower and is positioned in the flue gas inlet pipe.

Furthermore, in order to save the use of the desulfurization slurry, the electromagnetic valve is arranged, so that a plurality of desulfurization nozzles can be closed when the amount of flue gas is less in the specific use process, and the electromagnetic valve is arranged on the desulfurization branch pipe and between the desulfurization nozzles and the desulfurization pipe.

Further, in order to collect the denitration reactant in a specific using process, the collecting shell is connected with the inner wall of the reaction absorption tower through a plurality of connecting rods by arranging the connecting rods.

Further, in order to uniformly and rapidly stir the desulfurization slurry, by providing a driving mechanism, the driving mechanism comprises a driving column, a sleeve is sleeved on the driving column, a third gear is respectively sleeved at the top end of the driving column and the top end of the sleeve, connecting discs are respectively arranged at one end of the driving column far away from the third gear and one end of the sleeve far away from the third gear, the connecting disc is connected with the stirring blade, limiting blocks are respectively arranged on one side of the gear III, which is positioned on the sleeve, and on the driving column, which is positioned on the gear III, which is far away from the connecting disc, and the two limiting blocks are connected through a fixing frame, the fixing frame and be provided with between the drive post with gear three-phase complex gear four, one side that the fixing frame was kept away from the drive post is provided with motor two, motor two through pivot two with gear four is connected.

Further, in order to improve the reaction rate, through setting up adjusting device to accessible driving motor one, enlarge the area that sprays of desulfurization thick liquid, adjusting device is including setting up the pivot one of desulfurization nozzle one side, the pivot one is kept away from the one end of desulfurization nozzle is provided with gear one, the cover is equipped with in the axis of rotation of motor one with gear one matched with gear two, motor one is kept away from the one end of gear two with the desulfurization union coupling.

The utility model has the advantages that:

1. the adjusting device is arranged, so that the first driving motor can adjust the angle between the desulfurization nozzle and the cross section of the reaction absorption tower under the matching of the first gear and the second gear, and when the smoke volume is large, the desulfurization nozzle can move circularly upwards, the spraying area of the desulfurization slurry is increased, and the desulfurization reaction speed is further improved; simultaneously, set up the solenoid valve on the branch pipe of desulfurization to when the flue gas volume is less, a plurality of desulfurization nozzles are closed to the accessible drive solenoid valve, and then reducible use to the desulfurization thick liquid.

2. This practicality is through setting up actuating mechanism to driving motor two can make drive post and sleeve drive the stirring leaf respectively and rotate to two directions, and then can carry out abundant and careful stirring to the desulfurization thick liquid, simultaneously, also improves the stirring speed to the desulfurization thick liquid.

Drawings

Fig. 1 is a schematic structural diagram of a desulfurization and denitrification absorption tower for flue gas treatment according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a driving mechanism of a desulfurization and denitrification absorption tower for flue gas treatment according to an embodiment of the present invention;

fig. 3 is a regulating device for a SOx/NOx control absorption tower for flue gas treatment according to the embodiment of the utility model.

In the figure:

1. a reaction absorption tower; 2. a flue gas inlet pipe; 3. a preheater; 4. a denitration slurry tank; 5. a desulfurization slurry tank; 6. a drive mechanism; 601. a drive column; 602. a sleeve; 603. a third gear; 604. a connecting disc; 605. a limiting block; 606. a fixed mount; 607. a fourth gear; 608. a second motor; 609. a second rotating shaft; 7. stirring blades; 8. a desulfurization circulating pump; 9. a denitration circulating pump; 10. a desulfurization nozzle; 11. a desulfurization pipe; 12. a first demister; 13. a demister II; 14. a denitration nozzle; 15. a denitration pipe; 16. desulfurizing and separating pipes; 17. a collection plate; 18. a collection tray; 19. collecting the shells; 20. a collection pipe; 21. a filter bag; 22. an electromagnetic valve; 23. a connecting rod; 24. an adjustment device; 2401. a first rotating shaft; 2402. a first gear; 2403. a first motor; 2404. and a second gear.

Detailed Description

Now combine the attached drawing and the embodiment is right the utility model discloses it further explains, as shown in fig. 1-3, according to the utility model discloses a SOx/NOx control absorption tower for flue gas is handled, including reaction absorption tower 1, one side of reaction absorption tower 1 is provided with flue gas admission pipe 2, be provided with pre-heater 3 on the flue gas admission pipe 2, bottom in the reaction absorption tower 1 is provided with denitration thick liquid pond 4, denitration thick liquid pond 4's top is provided with SOx/NOx control thick liquid pond 5, one side of SOx/NOx control thick liquid pond 5 is provided with actuating mechanism 6, actuating mechanism 6's one end just is located be provided with a plurality of stirring vanes 7 in the SOx/NOx control thick liquid pond 5, reaction absorption tower 1 keeps away from one side of pre-heater 3 is provided with SOx/NOx control circulating pump 8, one side of SOx/NOx control circulating pump 9, the top of SOx/NOx control thick liquid pond 5 just is located evenly be provided with a plurality 10, the desulfurization nozzle 10 and the desulfurization circulating pump 8 and the denitration slurry tank 4 are respectively connected through a desulfurization pipe 11, one side of the desulfurization nozzle 10 is provided with an adjusting device 24, a first demister 12 is arranged above the desulfurization nozzle 10 and in the reaction absorption tower 1, a second demister 13 is arranged above the first demister 12, a plurality of denitration spray heads 14 are uniformly arranged between the second demister 13 and the first demister 12, the denitration spray heads 14 and the denitration circulating pump 9 and the denitration slurry tank 4 are respectively connected through a denitration pipe 15, the desulfurization nozzle 10 is connected with the desulfurization pipe 11 through a desulfurization branch pipe 16, a collecting plate 17 is arranged below the denitration spray heads 14, and a collecting disc 18 matched with the collecting plate 17 is arranged below the collecting plate 17, the intermediate position of catch tray 18 is provided with collects the shell 19, the bottom of collecting the shell 19 is provided with rather than matched with collecting pipe 20 to through setting up adjusting device 24, and then when desulfurization nozzle 10 sprayed the desulfurization thick liquid, can increase according to the volume of flue gas and spray the area, the top of reaction absorption tower 1 is provided with the chimney.

In one example, for the preheater 3, a filter bag 21 is disposed between the preheater 3 and the reaction absorption tower 1 and in the flue gas inlet pipe 2, so that the flue gas can be purified by disposing the filter bag 21.

In one example, for the desulfurization branch pipe 16, the electromagnetic valve 22 is arranged on the desulfurization branch pipe 16 and between the desulfurization nozzles 10 and the desulfurization pipe 11, so that by arranging the electromagnetic valve 22, when the amount of flue gas is small in a specific use process, a plurality of desulfurization nozzles 10 can be closed, and the use of desulfurization slurry is saved.

In one example, for the above-mentioned collecting shell 19, the collecting shell 19 is connected with the inner wall of the reaction absorption tower 1 through a plurality of connecting rods 23, so that the denitration reactant can be collected during a specific use process by providing the connecting rods 23.

In an example, for the above driving mechanism 6, the driving mechanism 6 includes a driving column 601, a sleeve 602 is sleeved on the driving column 601, a third gear 603 is respectively sleeved on the top end of the driving column 601 and the top end of the sleeve 602, a connecting disc 604 is respectively arranged on one end of the driving column 601 far away from the third gear 603 and one end of the sleeve 602 far away from the third gear 603, the connecting disc 604 is connected with the stirring blade 7, a fourth gear 607 matched with the third gear 603 is arranged between the fixing frame 606 and the driving column 601, a second motor 608 is arranged on one side of the fixing frame 606 far away from the driving column 601, two 608 motors through the pivot two 609 with four 607 gears are connected to through setting up actuating mechanism 6, and then can carry out even and quick stirring to the desulfurization thick liquid, two 608 accessible motors set up the supporter in the bottom and fix, and the bottom of mount 606 sets up the supporter and fixes, is convenient for stir the desulfurization thick liquid.

In an example, for the above adjusting device 24, the adjusting device 24 includes a first rotating shaft 2401 disposed on one side of the desulfurization nozzle 10, a first gear 2402 is disposed at one end of the first rotating shaft 2401 away from the desulfurization nozzle 10, a second gear 2404 matched with the first gear 2402 is sleeved on a rotating shaft of the first motor 2403, and one end of the first motor 2403 away from the second gear 2404 is connected to the desulfurization pipe 11, so that by disposing the adjusting device 24, the spraying area of the desulfurization slurry can be enlarged by driving the first motor 2403, and the reaction speed can be increased.

The working principle is as follows: when in use, flue gas enters through the flue gas inlet pipe 2, enters the reaction absorption tower 1 after being heated by the preheater 3, at this time, the first motor 2403 is driven, the first motor 2403 drives the second gear 2404 to rotate, the second gear 2404 is matched with the first gear 2402, so that the first gear 2402 drives the first rotating shaft 2401 and the desulfurization nozzle 10 to do circular motion, in the desulfurization process, the second motor 608 is driven, the second motor drives the second rotating shaft 609 and the fourth gear 607 to rotate, the fourth gear 607 drives the third two gears 603 to rotate in two directions, so that the driving column 601 drives the stirring blade 7 and the sleeve 602 to drive the stirring blade 7 to stir desulfurization slurry in two directions, the flue gas after desulfurization rises to the lower part of the denitrification spray head 14 to perform denitrification, a denitrification reactant flows from the collecting plate 17 to the collecting plate 18, flows into the collecting shell 19 through the collecting plate 18, then flows out through the collecting pipe 20, and the flue gas after denitrification is purified by the second demister 13, and (3) the chimney at the top end of the reaction absorption tower 1 flows out.

In summary, with the aid of the technical solution of the present invention, the adjusting device 24 is provided, so that the first driving motor 2403 can adjust the angle between the desulfurization nozzle 10 and the cross section of the reaction absorption tower 1 under the cooperation of the first gear 2402 and the second gear 2404, and when the amount of flue gas is large, the desulfurization nozzle 10 can make circular motion upwards, thereby increasing the spraying area of the desulfurization slurry and further improving the reaction speed of desulfurization; meanwhile, the electromagnetic valve 22 is arranged on the desulfurization branched pipe, so that when the amount of flue gas is less, the electromagnetic valve 22 can be driven to close the plurality of desulfurization nozzles 10, and the use of desulfurization slurry can be reduced. This practicality is through setting up actuating mechanism 6 to driving motor two 608 can make drive post 601 and sleeve 602 drive stirring leaf 7 respectively and rotate to two directions, and then can carry out abundant and careful stirring to the desulfurization thick liquid, simultaneously, also improves the stirring speed to the desulfurization thick liquid.

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 utility model provides a SOx/NOx control absorption tower for flue gas is handled, a serial communication port, including reaction absorption tower (1), one side of reaction absorption tower (1) is provided with flue gas admission pipe (2), be provided with pre-heater (3) on flue gas admission pipe (2), bottom in reaction absorption tower (1) is provided with denitration thick liquid pond (4), the top in denitration thick liquid pond (4) is provided with SOx/NOx control thick liquid pond (5), one side in SOx/NOx control thick liquid pond (5) is provided with actuating mechanism (6), the one end of actuating mechanism (6) just is located be provided with a plurality of stirring leaves (7) in SOx/NOx control thick liquid pond (5), reaction absorption tower (1) is kept away from one side of pre-heater (3) is provided with SOx/NOx control circulating pump (8), one side of SOx/NOx control circulating pump (9), the top in SOx/NOx control thick liquid pond (5) just is located evenly set up on the inner wall of reaction absorption tower The device is characterized by comprising a plurality of desulfurization nozzles (10), wherein the desulfurization nozzles (10) are connected with a desulfurization circulating pump (8) and the desulfurization circulating pump (8) is connected with a denitration slurry pool (4) through desulfurization pipes (11), an adjusting device (24) is arranged on one side of each desulfurization nozzle (10), a first demister (12) is arranged above each desulfurization nozzle (10) and positioned in a reaction absorption tower (1), a second demister (13) is arranged above each demister (12), a plurality of denitration spray heads (14) are uniformly arranged between each demister (13) and each demister (12), the denitration spray heads (14) are connected with the denitration circulating pump (9) and the denitration circulating pump (9) are connected with the denitration slurry pool (4) through denitration pipes (15), and the desulfurization nozzles (10) are connected with the desulfurization pipes (11) through desulfurization branch pipes (16), a collecting plate (17) is arranged below the denitration nozzle (14), a collecting disc (18) matched with the denitration nozzle is arranged below the collecting plate (17), a collecting shell (19) is arranged in the middle of the collecting disc (18), and a collecting pipe (20) matched with the denitration nozzle is arranged at the bottom end of the collecting shell (19).

2. The desulfurization and denitrification absorption tower for flue gas treatment according to claim 1, wherein a filter bag (21) is arranged between the preheater (3) and the reaction absorption tower (1) and in the flue gas inlet pipe (2).

3. The desulfurization and denitrification absorption tower for flue gas treatment according to claim 1, wherein an electromagnetic valve (22) is arranged on the desulfurization branch pipe (16) and between the desulfurization nozzle (10) and the desulfurization pipe (11).

4. The desulfurization and denitrification absorption tower for flue gas treatment according to claim 1, wherein the collection shell (19) is connected with the inner wall of the reaction absorption tower (1) through a plurality of connecting rods (23).

5. The desulfurization and denitrification absorption tower for flue gas treatment according to claim 1, wherein the driving mechanism (6) comprises a driving column (601), a sleeve (602) is sleeved on the driving column (601), a gear three (603) is respectively sleeved on the top end of the driving column (601) and the top end of the sleeve (602), a connecting disc (604) is respectively arranged on one end of the driving column (601) far away from the gear three (603) and one end of the sleeve (602) far away from the gear three (603), the connecting disc (604) is connected with the stirring blade (7), a limiting block (605) is respectively arranged on one side of the gear three (603) and on the sleeve (602) and on one end of the gear three (603) far away from the connecting disc (604) and on the driving column (601), and the two limiting blocks (605) are connected through a fixing frame (606), a gear four (607) matched with the gear three (603) is arranged between the fixed frame (606) and the driving column (601), a motor two (608) is arranged on one side, far away from the driving column (601), of the fixed frame (606), and the motor two (608) is connected with the gear four (607) through a rotating shaft two (609).

6. The desulfurization and denitrification absorption tower for flue gas treatment according to claim 1, wherein the adjusting device (24) comprises a first rotating shaft (2401) arranged on one side of the desulfurization nozzle (10), a first gear (2402) is arranged at one end of the first rotating shaft (2401) far away from the desulfurization nozzle (10), a second gear (2404) matched with the first gear (2402) is sleeved on a rotating shaft of a first motor (2403), and one end of the first motor (2403) far away from the second gear (2404) is connected with the desulfurization pipe (11).