CN215388634U - Bubble column flue gas desulfurization spray column spray set - Google Patents

Abstract

The utility model relates to the technical field of flue gas desulfurization, in particular to a spray device of a bubble column flue gas desulfurization spray tower. The spray device of the bubble tower flue gas desulfurization spray tower comprises a shell, a cleaning mechanism and a spray structure, wherein a sewage treatment cavity, a desulfurization cavity and a spray cavity are arranged in the shell; the cleaning mechanism for cleaning the filter screen is arranged on the shell; the spraying structure is arranged on the shell and used for secondary desulfurization of sulfur-containing gas. The spray device of the bubble column flue gas desulfurization spray tower provided by the utility model can fully utilize the desulfurization solution and reduce the waste of water resources; on the other hand, the water liquid and the solid matter are separately discharged, the possibility of pipeline blockage is reduced, and the workload in the later period is reduced.

Description

Bubble column flue gas desulfurization spray column spray set

Technical Field

The utility model relates to the technical field of flue gas desulfurization, in particular to a spray device of a bubble column flue gas desulfurization spray tower.

Background

In recent years, the environmental problems of China are increasingly aggravated, especially, the atmospheric pollution problems of haze, acid rain and the like greatly influence the lives of people, the nation implements new environmental protection policies, new standards for the emission of atmospheric pollutants of a thermal power plant are made, the atmospheric pollution problems can be effectively reduced through flue gas desulfurization, the wet flue gas desulfurization technology is one of the most widely used pollution gas control technologies of the coal-fired power plant, a plurality of spraying layers are arranged in the middle section of a desulfurization spraying tower adopted by the wet flue gas desulfurization, high-temperature flue gas passes through the desulfurization spraying tower from bottom to top, spraying slurry is atomized by a spraying device and then is sprayed to flue gas in a convection mode, and harmful substances such as SO2 in the flue gas are removed.

Current desulfurization spray column spray set adopts directly to drench and spouts the mode and carry out the desulfurization, and single desulfurization effect is relatively poor, and the desulfurization liquid after the single desulfurization all directly discharges, leads to the water consumption big, and the feature of environmental protection is relatively poor to the sewage after spraying mixes the solid matter, blocks up the sewage pipes easily, also brings the burden for the emission of sewage, leads to easily discharging some silt too much, and the water storage reduces, makes the later stage need carry out desilting work.

Therefore, there is a need to provide a new spray device of a bubble column flue gas desulfurization spray tower to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the spray device of the bubble column flue gas desulfurization spray tower, which can fully utilize the desulfurization solution, reduce the waste of water resources, discharge water solution and solid substances separately, reduce the possibility of pipeline blockage and reduce the workload in the later period.

The utility model provides a spray device of a bubble column flue gas desulfurization spray tower, which comprises: the device comprises a shell, a cleaning mechanism and a spraying structure, wherein a sewage treatment cavity, a desulfurization cavity and a spraying cavity are arranged in the shell; the cleaning mechanism for cleaning the filter screen is arranged on the shell; the spraying structure is arranged on the shell and used for secondary desulfurization of sulfur-containing gas.

Preferably, clean mechanism includes driving motor, threaded rod, scrubbing brush, slide bar and spout, driving motor fixed mounting is on the lateral wall of casing, and fixed mounting has the threaded rod on driving motor's the output, the threaded rod is inserted and is established in the sewage treatment chamber and rotate with the inside wall in sewage treatment chamber and be connected, and concatenates threaded connection's scrubbing brush on the threaded rod, insert the slide bar that is equipped with sliding connection on the scrubbing brush, and the equal fixed mounting in both ends of slide bar is on the inside wall in sewage treatment chamber, the both ends of scrubbing brush all insert establish in the spout and with the inside wall sliding connection of spout, and spout fixed mounting is on the inside wall in sewage treatment chamber.

Preferably, the spraying structure comprises branch pipes, a water distribution box and spray heads, a plurality of branch pipes are fixedly arranged on the inner top wall of the spraying cavity, the other end of each branch pipe penetrates through the inner top wall of the spraying cavity and extends out of the shell, the extending end of each branch pipe is fixedly arranged on the water distribution box, and a plurality of spray heads are fixedly arranged on each branch pipe.

Preferably, install ventilation structure on the casing, and ventilation structure includes intake pipe, control valve, air duct and blast pipe, intake pipe fixed mounting is on the casing, and fixed mounting has the control valve in the intake pipe, the intake pipe passes the lateral wall of casing and extends to the sewage treatment intracavity, air duct fixed mounting is on spraying the pants diapire in chamber, and the air duct is linked together with the desulfurization chamber, blast pipe fixed mounting is at the top of casing, and the blast pipe with spray the chamber and be linked together.

Preferably, the filter screen is fixedly installed on the inner side wall of the sewage treatment cavity, and a blowoff valve communicated with the desulfurization cavity is fixedly installed at the top of the sewage treatment cavity.

Preferably, the top of the desulfurization cavity is fixedly provided with a drain pipe communicated with the spray cavity, and the spray cavity guides the desulfurization liquid sprayed from the spray head into the sewage treatment cavity through the drain pipe.

Preferably, the bottom of the shell is fixedly provided with a drain valve, and the side wall of the shell is provided with a slag discharge port.

Compared with the related art, the spray device of the bubble column flue gas desulfurization spray tower provided by the utility model has the following beneficial effects:

1. the utility model provides a spray device of a bubble column flue gas desulfurization spray tower, which is characterized in that when flue gas is desulfurized, desulfurization liquid generated by flue gas desulfurization is discharged into a desulfurization cavity for reuse through a spray structure, and flue gas is desulfurized for the first time, so that the desulfurization liquid is fully utilized, and water resources are saved;

2. the utility model provides a spray device of a bubble tower flue gas desulfurization spray tower, wherein solid matters in produced sewage are left above a filter screen, so that the solid matters cannot be discharged together with the sewage to cause the problem of pipeline blockage when the sewage is discharged, and the condition that the water storage capacity is reduced due to accumulation of sludge at a discharge point occurs, the later-stage workload is reduced, a cleaning mechanism is used for cleaning the filter screen regularly to avoid the filter screen from being blocked, the workload of manual cleaning is reduced, the solid matters are cleaned from a slag discharge port regularly and are discharged independently, and the cleaning mechanism can push the solid matters out of the slag discharge port when the solid matters are cleaned, so that the workload of workers is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of a spray device of a bubble column flue gas desulfurization spray tower provided by the utility model;

fig. 2 is a schematic sectional view of the structure shown in fig. 1.

Reference numbers in the figures: 1. a housing; 2. a sewage treatment chamber; 3. a desulfurization chamber; 4. a spray chamber; 5. a cleaning mechanism; 51. a drive motor; 52. a threaded rod; 53. scrubbing and brushing; 54. a slide bar; 55. a chute; 6. a spraying structure; 61. a branch pipe; 62. a water diversion box; 63. a spray head; 7. a venting structure; 71. an air inlet pipe; 72. a control valve; 73. an air duct; 74. an exhaust pipe; 8. a filter screen; 9. a blowoff valve; 10. a drain pipe; 11. a drain valve; 12. a slag discharge port.

Detailed Description

The utility model is further described with reference to the following figures and embodiments.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a spray device of a bubble column flue gas desulfurization spray tower according to a preferred embodiment of the present invention; fig. 2 is a schematic sectional view of the structure shown in fig. 1. The method comprises the following steps: a housing 1, a cleaning mechanism 5 and a spray structure 6.

In the specific implementation process, as shown in fig. 1 and 2, a sewage treatment cavity 2, a desulfurization cavity 3 and a spraying cavity 4 are arranged inside a shell 1; the spraying structure 6 is installed on the shell 1, the spraying structure 6 is used for secondary desulfurization of sulfur-containing gas, the spraying structure 6 comprises branch pipes 61, a water distribution box 62 and spray heads 63, a plurality of branch pipes 61 are fixedly installed on the inner top wall of the spraying cavity 4, the other end of each branch pipe 61 penetrates through the inner top wall of the spraying cavity 4 and extends out of the shell 1, the extending end of each branch pipe 61 is fixedly installed on the water distribution box 62, a plurality of spray heads 63 are fixedly installed on each branch pipe 61, the shell 1 is provided with a ventilation structure 7, the ventilation structure 7 comprises an air inlet pipe 71, a control valve 72, an air guide pipe 73 and an exhaust pipe 74, the air inlet pipe 71 is fixedly installed on the shell 1, the air inlet pipe 71 is fixedly installed with the control valve 72, the air inlet pipe 71 penetrates through the side wall of the shell 1 and extends into the sewage treatment cavity 2, the air guide pipe 73 is fixedly installed on the bottom wall of underpants of the spraying cavity 4, the gas-guide pipe 73 is communicated with the desulfurization cavity 3, the exhaust pipe 74 is fixedly arranged at the top of the shell 1, and the exhaust pipe 74 is communicated with the spraying cavity 4; the top of the desulfurization cavity 3 is fixedly provided with a drain pipe 10 communicated with the spray cavity 4, and the spray cavity 4 guides the desulfurization liquid sprayed from the spray nozzle 63 into the sewage treatment cavity 2 through the drain pipe 10; the top of the sewage treatment cavity 2 is fixedly provided with a blowoff valve 9 communicated with the desulfurization cavity 3.

It should be noted that: spout into the doctor solution through shower nozzle 63 in spraying chamber 4, the doctor solution gets into among the desulfurization chamber 3 through drain pipe 10, until the doctor solution liquid level is higher than the gas vent of intake pipe 71, open control valve 72, let in the flue gas in desulfurization chamber 3, get into from air duct 73 and spray chamber 4 after the desulfurization of doctor solution, after the desulfurization of spun doctor solution in shower nozzle 63, discharge from blast pipe 74, water of shower nozzle 63 spun always discharges into among desulfurization chamber 3 through drain pipe 10 in this in-process, obtain the reutilization, the water economy resource, and need pass through control blowoff valve 9 exhaust sewage, and guarantee that the liquid level in desulfurization chamber 3 is higher than the gas vent of intake pipe 71, and be unlikely to fill up the doctor solution in desulfurization chamber 3.

Referring to fig. 1 and 2, a cleaning mechanism 5 for cleaning a filter net 8 is installed on a housing 1, and the cleaning mechanism 5 comprises a driving motor 51, a threaded rod 52, a scrubbing brush 53, a sliding rod 54 and a sliding groove 55, the driving motor 51 is fixedly arranged on the outer side wall of the shell 1, and the output end of the driving motor 51 is fixedly provided with a threaded rod 52, the threaded rod 52 is inserted into the sewage treatment chamber 2 and is rotationally connected with the inner side wall of the sewage treatment chamber 2, and a scrubbing brush 53 connected with the screw thread is connected in series on the threaded rod 52, a sliding rod 54 connected with the scrubbing brush 53 in a sliding way is inserted, and both ends of the slide bar 54 are fixedly arranged on the inner side wall of the sewage treatment chamber 2, both ends of the scrubbing brush 53 are inserted in the slide groove 55 and are in sliding connection with the inner side wall of the slide groove 55, and spout 55 fixed mounting is on the inside wall of sewage treatment chamber 2, and filter screen 8 fixed mounting is on the inside wall of sewage treatment chamber 2. A drain valve 11 is fixedly arranged at the bottom of the shell 1, and a slag discharge port 12 is arranged on the side wall of the shell 1.

It should be noted that: solid matters in the sewage discharged into the sewage treatment cavity 2 are left above the filter screen 8, so that the sewage is not discharged along with the sewage when being discharged, the problem of pipeline blockage is avoided, the condition that the water storage capacity is reduced due to the accumulation of sludge at a discharge point is avoided, and the workload at the later stage is reduced; the driving motor 51 is started regularly, the scrubbing brush 53 is driven to clean the filter screen 8, the filter screen 8 is prevented from being blocked, the workload of manual cleaning is reduced, solid substances are cleaned from the slag discharging port 12 regularly and are discharged independently, the cleaning mechanism 5 can push the slag discharging port 12 out when the solid substances are cleaned, and the workload of workers is reduced.

The working principle of the spray device of the bubble column flue gas desulfurization spray tower provided by the utility model is as follows:

spout into the doctor solution through shower nozzle 63 in spraying chamber 4, the doctor solution gets into among the desulfurization chamber 3 through drain pipe 10, until the doctor solution liquid level is higher than the gas vent of intake pipe 71, open control valve 72, let in the flue gas in desulfurization chamber 3, get into from air duct 73 and spray chamber 4 after the desulfurization of doctor solution, after the desulfurization of spun doctor solution in shower nozzle 63, discharge from blast pipe 74, water of shower nozzle 63 spun always discharges into among desulfurization chamber 3 through drain pipe 10 in this in-process, obtain the reutilization, the water economy resource, and need pass through control blowoff valve 9 exhaust sewage, and guarantee that the liquid level in desulfurization chamber 3 is higher than the gas vent of intake pipe 71, and be unlikely to fill up the doctor solution in desulfurization chamber 3.

The circuits and controls involved in the present invention are prior art and will not be described in detail herein.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (7)

1. The utility model provides a bubble column flue gas desulfurization spray column spray set which characterized in that includes:

the device comprises a shell (1), wherein a sewage treatment cavity (2), a desulfurization cavity (3) and a spraying cavity (4) are arranged in the shell (1);

the cleaning mechanism (5) is used for cleaning the filter screen (8), and the cleaning mechanism (5) is arranged on the shell (1);

the spraying structure (6) is installed on the shell (1), and the spraying structure (6) is used for secondary desulfurization of sulfur-containing gas.

2. The spray device of the bubble column flue gas desulfurization spray tower according to claim 1, wherein the cleaning mechanism (5) comprises a driving motor (51), a threaded rod (52), a scrubbing brush (53), a sliding rod (54) and a sliding groove (55), the driving motor (51) is fixedly installed on the outer side wall of the shell (1), the threaded rod (52) is fixedly installed on the output end of the driving motor (51), the threaded rod (52) is inserted into the sewage treatment chamber (2) and is rotatably connected with the inner side wall of the sewage treatment chamber (2), the scrubbing brush (53) in threaded connection is connected in series on the threaded rod (52), the sliding rod (54) in sliding connection is inserted on the scrubbing brush (53), both ends of the sliding rod (54) are fixedly installed on the inner side wall of the sewage treatment chamber (2), both ends of the scrubbing brush (53) are inserted in the sliding groove (55) and are slidably connected with the inner side wall of the sliding groove (55), and the chute (55) is fixedly arranged on the inner side wall of the sewage treatment cavity (2).

3. The spray device of the bubble column flue gas desulfurization spray tower according to claim 1, wherein the spray structure (6) comprises a plurality of branch pipes (61), a water diversion box (62) and spray heads (63), a plurality of branch pipes (61) are fixedly installed on the inner top wall of the spray chamber (4), the other end of each branch pipe (61) penetrates through the inner top wall of the spray chamber (4) and extends to the outside of the shell (1), the extending end of each branch pipe (61) is fixedly installed on the water diversion box (62), and a plurality of spray heads (63) are fixedly installed on each branch pipe (61).

4. The spray device of the bubble column flue gas desulfurization spray tower according to claim 1, wherein the housing (1) is provided with a ventilation structure (7), the ventilation structure (7) comprises an air inlet pipe (71), a control valve (72), an air duct (73) and an exhaust pipe (74), the air inlet pipe (71) is fixedly arranged on the housing (1), the control valve (72) is fixedly arranged on the air inlet pipe (71), the air inlet pipe (71) penetrates through the side wall of the housing (1) and extends into the sewage treatment cavity (2), the air duct (73) is fixedly arranged on the bottom wall of underpants of the spray cavity (4), the air duct (73) is communicated with the desulfurization cavity (3), the exhaust pipe (74) is fixedly arranged on the top of the housing (1), and the exhaust pipe (74) is communicated with the spray cavity (4).

5. The spray device of the bubble column flue gas desulfurization spray tower according to claim 1, wherein the filter screen (8) is fixedly installed on the inner side wall of the sewage treatment chamber (2), and a blowoff valve (9) communicated with the desulfurization chamber (3) is fixedly installed at the top of the sewage treatment chamber (2).

6. The spray device of the bubble column flue gas desulfurization spray tower according to claim 3, wherein a drain pipe (10) communicated with the spray chamber (4) is fixedly installed at the top of the desulfurization chamber (3), and the spray chamber (4) guides the desulfurization solution sprayed from the spray head (63) into the sewage treatment chamber (2) through the drain pipe (10).

7. The spray device of the bubble column flue gas desulfurization spray tower according to claim 1, wherein a drain valve (11) is fixedly installed at the bottom of the shell (1), and a slag discharge port (12) is opened on the side wall of the shell (1).

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