CN215585947U

CN215585947U - Anti-blocking device of wet desulphurization spray tower

Info

Publication number: CN215585947U
Application number: CN202120814315.5U
Authority: CN
Inventors: 朱宝波
Original assignee: Hebei Xinda Iron and Steel Group Co Ltd
Current assignee: Hebei Xinda Iron and Steel Group Co Ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2022-01-21
Anticipated expiration: 2031-04-21

Abstract

The utility model discloses a wet desulphurization spray tower anti-blocking device, which comprises a spray tower, a circulating water tank, a spray assembly and a flushing assembly, wherein the spray tower is provided with a circulating water tank; the circulating water tank is communicated with the bottom of the spraying tower; the spraying assembly comprises a spraying pipe, a spray head and a spraying pump; one end of the spray pipe is communicated with the circulating water tank, and the other end of the spray pipe penetrates through the tower wall of the spray tower to be connected into the spray tower after passing through a spray pump and a spray valve; a plurality of spray heads are arranged on the spray pipe in the spray tower; the flushing assembly comprises a flushing pipe and a flushing pool; the bottom of the flushing tank is provided with an air pipe which is communicated with the middle lower part of the spray tower; one end of the flushing pipe is communicated with the flushing tank, and the other end of the flushing pipe is communicated with the spraying pipe in the spraying tower after passing through the flushing pump and the flushing valve. The utility model accelerates the flue gas treatment speed in the spray tower, and on the other hand, the flushing liquid can help to relieve the blockage of the spray head. The utility model has the characteristics of simple structure, low blockage of the flue gas treatment speed block, the spray pipe and the spray head and the like.

Description

Anti-blocking device of wet desulphurization spray tower

Technical Field

The utility model relates to an anti-blocking device, in particular to an anti-blocking device for a wet desulphurization spray tower.

Background

The limestone-gypsum wet desulphurization method is that a circulating pump recovers liquid in a spray tower, and the liquid is sprayed out from a spray head and atomized through a spray pipe; the atomized liquid is filled in the whole spray tower and then reacts with the flue gas to remove the sulfur dioxide in the flue gas. Compared with dry and semi-dry desulfurization and other technologies, the limestone-gypsum wet desulfurization method has the characteristics of high desulfurization efficiency, low cost, easy acquisition and the like. However, the limestone-gypsum wet desulphurization method also has the defects that the spray pipe and the spray head are easy to block, and once the spray pipe and the spray head are blocked, the spraying range of the sprayed slurry is not wide enough, and the problems of spraying dead angles and the like are caused, so that the desulphurization efficiency is influenced. The current commonly used solving means is that when the blockage of the spray pipe and the spray head is serious, the production is stopped immediately for maintenance, and the blockage is cleared.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing an anti-blocking device of a wet desulphurization spray tower, which can reduce the blockage of a spray pipe and a spray head.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:

a wet desulphurization spray tower anti-blocking device comprises a spray tower, a circulating water tank, a spray assembly and a flushing assembly; the circulating water tank is communicated with the bottom of the spraying tower; the spraying assembly comprises a spraying pipe, a spray head and a spraying pump; one end of the spray pipe is communicated with the circulating water tank, and the other end of the spray pipe penetrates through the tower wall of the spray tower to be connected into the spray tower after passing through a spray pump and a spray valve; a plurality of spray heads are arranged on the spray pipe in the spray tower; the flushing assembly comprises a flushing pipe and a flushing pool; the bottom of the flushing tank is provided with an air pipe which is communicated with the middle lower part of the spray tower; one end of the flushing pipe is communicated with the flushing tank, and the other end of the flushing pipe is communicated with the spraying pipe in the spraying tower after passing through the flushing pump and the flushing valve.

The anti-blocking device for the wet desulphurization spray tower further comprises a control assembly; the control component comprises a CPU and a pressure sensor; the pressure sensor is arranged on the inner wall of the spray pipe behind the spray valve; the signal output end of the pressure sensor is connected with the signal input end of the CPU; and the signal output end of the CPU is respectively connected with the signal input ends of the spray valve, the flushing valve and the flushing pump.

The anti-blocking device for the wet desulphurization spray tower further comprises a back suction assembly; the suck-back component comprises a suck-back pipe; one end of the back suction pipe is communicated with the circulating water tank, and the other end of the back suction pipe is communicated with the spray pipe between the spray pump and the spray valve after passing through the back suction pump and the back suction valve.

In the anti-blocking device for the wet desulphurization spray tower, the signal output end of the CPU is also connected with the input ends of the resorption pump and the resorption valve.

The anti-blocking device for the wet desulphurization spray tower further comprises a supplementary pipe; one end of the replenishing pipe is communicated with the pickling solution storage tank, and the other end of the replenishing pipe is communicated with a flushing pipe between the acidity detector and the spraying pipe after passing through the replenishing pump and the replenishing valve.

In the anti-blocking device for the wet desulphurization spray tower, the signal output end of the CPU is also connected with the input ends of the supplementary pump and the supplementary valve.

In the wet desulphurization spray tower anti-blocking device, one side of the circulating water tank is also communicated with the liquid replenishing pipe.

According to the anti-blocking device for the wet desulphurization spray tower, a plurality of sets of spray assemblies which are arranged in parallel are arranged between the circulating water tank and the spray tower.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: according to the utility model, by adopting the mode of additionally arranging the flushing component, when the blockage occurs, flushing liquid can be filled in to flush the spraying pipe and the spray nozzle which are slightly blocked, and the flushing liquid is dissolved in the flushing tank from the flue gas of the spraying tower. Like this, on the one hand has accelerated the flue gas processing speed in the spray column, and on the other hand makes the flush fluid can help alleviating the jam condition that realizes the shower nozzle. The utility model has the characteristics of simple structure, low blockage of the flue gas treatment speed block, the spray pipe and the spray head and the like.

In addition, the utility model adopts a control assembly, wherein the pressure sensor vertically transmits the pressure in the pipeline to the CPU, the CPU judges the blocking condition of the spray pipe and the spray head through the pressure numerical value, when the flue gas vertically exceeds a set value, the CPU controls the corresponding valve to open and close, the automatic filling of the flushing liquid in the spray pipe is realized, the automation degree of the device can be improved, the workload of workers is reduced, the labor burden of the workers is lightened, and the flue gas treatment efficiency is improved. According to the utility model, a plurality of sets of spraying components are adopted for spraying, and spraying and washing can be alternately carried out among the spraying components, so that the treatment speed of the flue gas can be further improved.

The rinsing liquid can be supplemented into the rinsing pipe through the supplementing pipe, and the acidity of the rinsing liquid can be adjusted by adjusting the opening degrees of the rinsing valve and the supplementing valve, so that a better rinsing effect is realized.

Drawings

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

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an electrical schematic of the present invention.

The reference numerals in the figures denote: 1. a spray tower; 2. flushing branch valves; 3. a replenishment valve; 4. a make-up pump; 5. an acidity detector; 6. flushing the valve; 7. a flush pump; 8. a pulp supplementing pipe; 9. a washing tank; 10. an air tube; 11. a circulating water tank; 12. a liquid replenishing pipe; 13. a spray pump; 14. a back suction pump; 15. a suck-back valve; 16. a spray valve; 17. a pressure sensor; 18. a spray head; 19. a CPU; j1, a first relay; j1-1, a first relay normally open control contact; t1, a first triode; j2, second relay; j2-1, a second relay normally open control contact; t2, a second triode; j3, third relay; j3-1, a third relay normally open control contact; t3, a third triode; j4, fourth relay; j4-1, a fourth relay normally open control contact; t4, a fourth triode; j5, fifth relay; j5-1, a fifth relay normally open control contact; t5, fifth triode.

Detailed Description

Referring to fig. 1, the present invention includes a spray tower 1, a circulation water tank 11, a spray assembly, a return pipe, a control assembly, a supplement pipe, and a rinse assembly; the circulating water tank 11 is communicated with the bottom of the spray tower 1, so that the sprayed slurry can be recycled. And a replenishing pipe 12 is communicated with one side of the circulating water tank 11 and can be used for replenishing the slurry. The utility model comprises a plurality of sets of spraying components, wherein each set of spraying component comprises a spraying pipe, a spray head 18 and a spraying pump 13; one end of the spray pipe is communicated with the circulating water tank 11, the other end of the spray pipe penetrates through the tower wall of the spray tower 1 and is connected into the spray tower 1 after passing through a spray pump 13 and a spray valve 16, and a plurality of spray heads 18 are arranged on the spray pipe in the spray tower 1; the number of the suction pipes is a plurality of suction pipes, the suction pipes are matched with the spraying assembly for use, one end of each suction pipe is communicated with the circulating water tank 11, and the other end of each suction pipe is communicated with the spraying pipe between the spraying pump 13 and the spraying valve 16 after passing through the suction pump 14 and the suction valve 15. The back suction pipe can suck the slurry in the spray pipe with serious blockage back to the flushing tank, so that the later operation is facilitated.

With reference to fig. 1, the flushing assembly comprises a flushing pipe and a flushing basin 9; the bottom of the flushing tank 9 is provided with an air pipe 10 which is communicated with the middle lower part of the spray tower 1; and a pulp supplementing pipe 8 communicated with the flushing tank 9 is arranged on one side of the flushing tank 9 and is used for supplementing pulp consumed by the flushing tank 9. One end of the flushing pipe is communicated with the flushing tank 9, and the other end of the flushing pipe is communicated with the spraying pipes in the spraying tower 1 after passing through the flushing pump 7, the flushing valve 6 and the flushing branch pipes corresponding to the plurality of spraying pipes. One end of the replenishing pipe is communicated with the pickling solution storage tank, and the other end of the replenishing pipe is communicated with a flushing pipe between the acidity detector 5 and the spray pipe after passing through the replenishing pump 4 and the replenishing valve 3. The replenishing pipe can extract the pickling solution from the pickling solution storage tank to replenish the pickling solution into the flushing pipe, so that the acidity of the flushing solution is improved, and the cleaning effect of the spray pipe and the spray head 18 can be further ensured.

Referring to fig. 1 and 2, the control assembly of the present invention includes a CPU19, a pressure sensor 17, an acidity detector 5, a first relay J1, a first relay normally open control contact J1-1, a first triode T1, a second relay J2, a second relay normally open control contact J2-1, a second relay normally closed control contact J2-2, a second triode T2, a third relay J3, a third relay normally open control contact J3-1, a third triode T3, a fourth relay J4, a fourth relay normally open control contact J4-1, a fourth triode T4, a fifth relay J5, a fifth relay normally open control contact J5-1, and a fifth triode T5; the pressure sensor 17 is arranged on the inner wall of the spray pipe behind the spray valve 16; the acidity detector 5 is arranged on the inner wall of the flushing pipe between the joint of the replenishing pipe and the flushing valve 6; the pressure sensor 17 and the acidity detector 5 are respectively connected with a P1.0 interface and a P1.1 interface of the CPU 19; the P2.0 interface of the CPU1919 is connected with the base electrode of a first triode T1; the emitting electrode of the first triode T1 is grounded, and the collector electrode of the first triode T1 is connected with a power supply after passing through a first relay J1; one end of the first relay normally open control contact J1-1 is connected with a power supply, and the other end is grounded after passing through the suck-back pump 14 and the suck-back valve 15. The P2.1 interface of the CPU1919 is connected with the base electrode of a second triode T2; the emitter of the second triode T2 is grounded, and the collector of the second triode T2 is connected with a power supply after passing through a second relay J2; one end of the normally open control contact J2-1 of the second relay is connected with a power supply, and the other end is grounded after passing through the spray valve 16. The P2.2 interface of the CPU1919 is connected with the base electrode of a third triode T3; the emitter of the third triode T3 is grounded, and the collector of the third triode T3 is connected with a power supply after passing through a third relay J3; one end of the normally open control contact J3-1 of the third relay is connected with a power supply, and the other end is grounded after passing through the flushing valve 6 and the flushing pump 7. The P2.3 interface of the CPU1919 is connected with the base electrode of a fourth triode T4; the emitter of the fourth triode T4 is grounded, and the collector of the fourth triode T4 is connected with a power supply after passing through a fourth relay J4; one end of a fourth relay normally open control contact J4-1 is connected with a power supply, and the other end is grounded after passing through the flushing branch pipe valve 2. The P2.4 interface of the CPU1919 is connected with the base electrode of a fifth triode T5; an emitting electrode of the fifth triode T5 is grounded, and a collector electrode of the fifth triode T5 is connected with a power supply after passing through a fifth relay J5; one end of a normally open control contact J5-1 of the fifth relay is connected with a power supply, and the other end of the normally open control contact is grounded after passing through the supplementary valve 3. The P2.5 interface and the P2.6 interface of the CPU1919 are respectively connected with the signal input ends of the flushing valve 6 and the supplementary valve 3 and then grounded.

The working process of the utility model is that the pressure sensor 17 transmits the detected pressure data to the CPU1919, and the CPU1919 judges the current blockage situation of the spray pipe and the spray head 18 according to the pressure data to carry out corresponding judgment. If the pressure value exceeds the set value, the CPU1919 controls the spray pump 13 to stop working, controls the resorption pump 14 and the resorption valve 15 to work, and the resorption pump 14 absorbs the slurry in the spray pipe back to the washing tank 9; the suction pump 14 and the suction valve 15 are then deactivated, and the spray pump 13 is deactivated. The flushing valve 6 is opened, the flushing pump 7 works, the flushing branch pipe valve 2 is opened, flushing liquid flows into the spray pipe, and the blockage at the spray pipe and the spray head 18 is dissolved. The acidity detector 5 detects the acidity of the acidic solution at this time, and transmits the detection result to the CPU1919, and when the detected value is lower than the set value of the CPU1919, the CPU1919 controls the opening of the replenishment valve 3 to increase, and the pickling solution storage tank replenishes more pickling solution into the rinsing solution, so as to achieve better rinsing effect.

Claims

1. The utility model provides a wet flue gas desulfurization spray column prevents stifled device which characterized in that: comprises a spray tower (1), a circulating water pool (11), a spray assembly and a washing assembly; the circulating water tank (11) is communicated with the bottom of the spray tower (1); the spray assembly comprises a spray pipe, a spray head (18) and a spray pump (13); one end of the spray pipe is communicated with the circulating water tank (11), and the other end of the spray pipe passes through the tower wall of the spray tower (1) and is connected into the spray tower (1) after passing through a spray pump (13) and a spray valve (16); a plurality of spray heads (18) are arranged on the spray pipe in the spray tower (1); the flushing assembly comprises a flushing pipe and a flushing pool (9); an air pipe (10) is arranged at the bottom of the flushing tank (9) and is communicated with the middle lower part of the spray tower (1); one end of the flushing pipe is communicated with the flushing tank (9), and the other end of the flushing pipe is communicated with the spraying pipe in the spraying tower (1) after passing through the flushing pump (7) and the flushing valve (6).

2. The wet desulfurization spray tower anti-clogging device as recited in claim 1, wherein: the device also comprises a control component; the control assembly comprises a CPU (19) and a pressure sensor (17); the pressure sensor (17) is arranged on the inner wall of the spray pipe behind the spray valve (16); the signal output end of the pressure sensor (17) is connected with the signal input end of a CPU (19); and the signal output end of the CPU (19) is respectively connected with the signal input ends of the spray valve (16), the flushing valve (6) and the flushing pump (7).

3. The wet desulfurization spray tower anti-clogging device according to claim 1 or 2, characterized in that: the back suction component is also included; the suck-back component comprises a suck-back pipe; one end of the back suction pipe is communicated with the circulating water tank (11), and the other end of the back suction pipe is communicated with the spray pipe between the spray pump (13) and the spray valve (16) after passing through the back suction pump (14) and the back suction valve (15).

4. The wet desulfurization spray tower anti-clogging device of claim 3, wherein: and the signal output end of the CPU (19) is also connected with the input ends of the suck-back pump (14) and the suck-back valve (15).

5. The wet desulfurization spray tower anti-clogging device as recited in claim 4, wherein: also comprises a supplementary pipe; one end of the replenishing pipe is communicated with the pickling solution storage tank, and the other end of the replenishing pipe is communicated with a flushing pipe between the acidity detector (5) and the spray pipe after passing through the replenishing pump (4) and the replenishing valve (3).

6. The wet desulfurization spray tower anti-clogging device as recited in claim 5, wherein: the signal output end of the CPU (19) is also connected with the input ends of the supplementary pump (4) and the supplementary valve (3).

7. The wet desulfurization spray tower anti-clogging device according to claim 1 or 2, characterized in that: and a liquid replenishing pipe (12) is communicated with one side of the circulating water tank (11).

8. The wet desulfurization spray tower anti-clogging device according to claim 1 or 2, characterized in that: a plurality of sets of spraying components which are arranged in parallel are arranged between the circulating water tank (11) and the spraying tower (1).