CN218076927U - SOx/NOx control dust removal integrated device - Google Patents

Abstract

The utility model discloses a SOx/NOx control dust removal integrated device, its technical scheme main points are: the absorption tower comprises a cylindrical absorption tower body, wherein the top surface of the cylindrical absorption tower body is provided with an air inlet hole, and an air inlet pipe is fixedly sleeved in the air inlet hole; break away from the subassembly, it sets up to break away from the subassembly the inside of drum absorption tower body for break away from the harmful gas in the flue gas, can filter the dust in the flue gas through the dust filter screen, can spray water or cleaning solution to the top surface of dust filter screen through first shower nozzle, can wash the dust in the dust filter screen, can spray environmental protection ionic liquid to the flue gas through the second shower nozzle, thereby harmful gas such as effectual absorption flue gas sulphur, nitre, VOC, when gas sensor detects still to contain harmful gas in the flue gas, the flue gas carries out the secondary filter through the inside top surface of second connecting pipe reentrant drum absorption tower body between the dust filter screen.

Description

An integrated device for desulfurization, denitrification and dust removal

technical field

The utility model relates to the technical field of flue gas dust removal, in particular to an integrated device for desulfurization, denitrification and dust removal.

Background technique

Flue gas desulfurization and denitrification technologies mainly include dry selective catalytic reduction flue gas denitrification, selective non-catalytic reduction denitrification and wet method. Compared with wet flue gas denitrification technology, the main advantages of dry flue gas denitrification technology are : Low basic investment, simple equipment and process, and high removal efficiency.

For example, according to the Chinese patent whose publication number is CN216654063U, a desulfurization, denitrification and dust removal integrated device includes a purification tank, a liquid storage tank, a transmission pipe and an air inlet, and also includes a heat preservation mechanism and a supporting mechanism. , a temperature controller, a U-shaped sleeve, a fitting strip and a fitting groove. The outer side of the transmission pipe is wound with a heating cable, and the outer side of the transmission pipe and the heating belt is sleeved with a U-shaped sleeve. The U-shaped sleeve There is a fitting strip protruding from the inner wall of the bottom end of the sleeve body, and a heating cable of the heat preservation mechanism is installed at the transfer pipe between the purification tank and the liquid storage tank, and then the U-shaped sleeve is kept on the outer side of the transfer pipe wrapped with the heating tape. Press the bottom of the U-shaped sleeve so that the fitting strip at the bottom of the U-shaped sleeve is embedded in the fitting groove to complete the closure of the bottom of the U-shaped sleeve. Turn on the control power of the thermostat, and the thermostat can control the heating of the heating cable. At this time, the heat of the heating cable is transferred to the transmission pipe to prevent the liquid from freezing and blocking the pipe, but the above-mentioned solution still has shortcomings. For example, the device does not have a smoke detection device and a secondary filter device, which will cause the smoke to pass through the primary filter. There is still a small amount of harmful gas in it.

Utility model content

Aiming at the deficiencies of the prior art, the utility model provides an integrated device for desulfurization, denitrification and dust removal, which solves the problem that the device does not have a smoke detection device and a secondary filtering device, which will cause the flue gas to be filtered after the first pass. There is still the problem of small amounts of harmful gases.

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions:

An integrated device for desulfurization, denitrification and dust removal, comprising: a cylindrical absorption tower body, an air inlet hole is opened on the top surface of the cylindrical absorption tower body, and an air inlet pipe is fixed inside the air inlet hole; the detachment assembly, the The detachment assembly is arranged inside the body of the cylindrical absorption tower, and is used for detachment of harmful gases in the flue gas.

By adopting the above-mentioned technical scheme, by setting the detachment component, the dust in the flue gas can be effectively removed by the detachment component. The detachment component uses a new type of environmentally friendly ionic liquid, and compares the representative ionic liquids of guanidine salts, alcoholamines, and imidazoles at the same time. The adsorption performance of sulfur, nitrate, and VOCs in the absorption flue gas. VOCs are represented by toluene and acetone. First, the single-factor experiment is used to study the optimal process for the simultaneous removal of sulfur, nitrate, toluene, and acetone by ionic liquids, and then the exhaust gas is optimized by orthogonal experiments. Suitable ionic liquids and modification of ionic liquids, due to the high viscosity and high cost of ionic liquids, consider technical methods such as compounding with water, silica gel immobilization, etc., to obtain the ionic liquid ratio for removing a variety of harmful gases, so that it can be effectively Absorb sulfur, nitrate and VOC in flue gas.

Preferably, the detachment assembly includes: a first spray head, the first spray head is fixedly installed on the inner circular wall surface of the cylindrical absorption tower body, and a dust filter is fixedly installed inside the cylindrical absorption tower body, The inner circular wall of the cylindrical absorption tower body is fixedly equipped with a second nozzle, the second nozzle is located on the bottom surface of the dust filter, and the inside of the cylindrical absorption tower body is fixedly installed with a stopper, the stopper A gas sensor is fixedly installed on the bottom surface of the block, a first connecting pipe is provided on the outer circular wall of the cylindrical absorption tower body, and a second connecting pipe is provided on the outer circular wall of the cylindrical absorption tower body.

By adopting the above technical scheme, by setting the dust filter, the dust in the flue gas can be filtered through the dust filter, and water or cleaning liquid can be sprayed on the top surface of the dust filter through the first nozzle, which can clean the inside of the dust filter. The dust can be cleaned through the second nozzle, which can spray environmentally friendly ionic liquid into the flue gas, so as to effectively absorb harmful gases such as sulfur, nitrate, and VOC in the flue gas, and then the flue gas enters the interior of the first connecting pipe and enters the cylinder for absorption Between the inner bottom surface of the tower body and the stopper, when the gas sensor detects that there is still harmful gas in the flue gas, the flue gas re-enters the gap between the inner top surface of the cylindrical absorption tower body and the dust filter through the second connecting pipe. for secondary filtration.

Preferably, the outer circular wall of the cylindrical absorption tower body is provided with a first communication hole, and a first centrifugal fan is fixedly installed inside the first communication hole, and the first communication hole is located on the dust filter. The bottom surface of the cylindrical absorption tower body is provided with a second communication hole, and the two ends of the first connecting pipe are respectively fixed and installed with the outer circular wall surface of the cylindrical absorption tower body. Both the communication hole and the second communication hole are in communication with the first connecting pipe, and the outer wall surface of the cylindrical absorption tower body is provided with a first clamping hole, and the inside of the first clamping hole is fixedly installed There is a second centrifugal fan, the top surface of the cylindrical absorption tower body is provided with a second clamping hole, one end of the second connecting pipe is fixedly installed on the top surface of the cylindrical absorption tower body, and the first The other ends of the two connecting pipes are fixedly installed on the outer circular wall of the cylindrical absorption tower body, and the first clamping hole and the second clamping hole are connected to the second connecting pipe.

By adopting the above technical scheme, by setting the first centrifugal fan, the flue gas filtered by the dust filter and the second nozzle can be sucked into the space between the inner bottom surface of the cylindrical absorption tower body and the stopper through the gas sensor. For detection, when it is detected that there is still harmful gas, the second centrifugal fan will re-inhale the flue gas through the second connecting pipe between the inner top surface of the cylindrical absorption tower body and the dust filter, thereby performing secondary filtration.

Preferably, a buzzer alarm is fixedly installed on the outer circular wall of the cylindrical absorption tower body, and an air outlet pipe is fixedly installed on the bottom surface of the cylindrical absorption tower body, and the air outlet pipe is connected to the cylindrical absorption tower body. connected.

By adopting the above technical scheme, by setting the buzzer alarm, when the gas sensor detects that harmful gas is still contained in the gas sensor, the buzzer alarm will be issued to remind the staff to perform secondary filtration. When the buzzer alarm does not issue an alarm , the flue gas can be discharged through the outlet pipe for the next process.

Preferably, a first air valve is fixedly installed on the outer circular wall of the first connecting pipe, a second air valve is fixedly installed on the outer circular wall of the second connecting pipe, and a second air valve is fixedly installed on the outer circular wall of the outlet pipe. There is a third air valve.

By adopting the above-mentioned technical scheme, by setting the first air valve, the second air valve and the third air valve, when the flue gas circulates inside the cylindrical absorption tower body through the first air valve, the second air valve and the third air valve, , to ensure that the pipeline is closed when the pipeline does not need to circulate.

Preferably, the outer circular wall of the cylindrical absorption tower body is provided with a liquid outlet, the liquid outlet is located between the stopper and the dust filter, and the inner fixed sleeve of the liquid outlet is provided with an outlet A liquid pipe, and a water valve is fixedly installed on the outer circular wall of the liquid outlet pipe.

By adopting the above technical solution, by setting the liquid outlet pipe, the liquid sprayed by the first spray head and the second spray head can be discharged from the interior of the cylindrical absorption tower body through the liquid outlet pipe.

In summary, the utility model mainly has the following beneficial effects:

By setting the dust filter screen, the dust in the flue gas can be filtered through the dust filter screen, and the top surface of the dust filter screen can be sprayed with water or cleaning liquid through the first nozzle to clean the dust in the dust filter screen. The second nozzle can spray environmentally friendly ionic liquids into the flue gas, thereby effectively absorbing harmful gases such as sulfur, nitrate, and VOC in the flue gas, and then the flue gas enters the interior of the first connecting pipe and enters the inner bottom surface of the cylindrical absorption tower body and Between the stoppers, when the gas sensor detects that the smoke still contains harmful gases, the smoke re-enters between the inner top surface of the cylindrical absorption tower body and the dust filter through the second connecting pipe for secondary filtration. Thereby effectively preventing the problem that a small amount of harmful gas still exists inside the flue gas.

By arranging the first centrifugal fan, the flue gas filtered by the dust filter screen and the second nozzle can be sucked into the inner bottom surface of the cylindrical absorption tower body and the stopper through the first centrifugal fan to detect through the gas sensor. When there is still harmful gas, the second centrifugal fan re-inhales the flue gas between the inner top surface of the cylindrical absorption tower body and the dust filter through the second connecting pipe, thereby performing secondary filtration.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is the split structure schematic diagram of the utility model;

Fig. 3 is a schematic diagram of the air inlet structure of the utility model;

Fig. 4 is a structural schematic diagram of the block of the present invention.

Reference signs: 1. Cylindrical absorption tower body; 2. Air inlet hole; 3. Air inlet pipe; 4. First nozzle; 5. Dust filter; 6. Second nozzle; 7. Block; 8. Gas sensor; 9. The first connecting pipe; 10. The second connecting pipe; 11. The buzzer alarm; 12. The first communication hole; 13. The second communication hole; 14. The first centrifugal fan; 15. The first clamping hole; 16. Second clamping hole; 17. Second centrifugal fan; 18. Air outlet pipe; 19. First air valve; 20. Second air valve; 21. Third air valve; 22. Liquid outlet hole; 23. Outlet Liquid pipe; 24, water valve.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, an integrated device for desulfurization, denitrification and dust removal includes a cylindrical absorption tower body 1. The cylindrical absorption tower body 1 is an existing structure and will not be described here. The top surface of the absorption tower body 1 is provided with an air inlet hole 2, and the inside of the air inlet hole 2 is fixedly provided with an air inlet pipe 3, and the inside of the cylindrical absorption tower body 1 is provided with a detachment assembly for detaching harmful gases in the flue gas. The assembly includes a first nozzle 4, the first nozzle 4 is an existing structure and will not be described in detail here, the first nozzle 4 is fixedly installed on the inner wall of the cylindrical absorption tower body 1, and the inside of the cylindrical absorption tower body 1 is fixedly installed with Dust filter 5, the dust filter 5 is an existing structure and will not be described here. The inner wall of the cylindrical absorption tower body 1 is fixedly equipped with a second nozzle 6. The second nozzle 6 is an existing structure and will not be described here. , the second spray head 6 is located at the bottom surface of the dust filter screen 5, the inside of the cylindrical absorption tower body 1 is fixedly installed with a stopper 7, and the bottom surface of the stopper 7 is fixedly installed with a gas sensor 8, the gas sensor 8 is an existing structure and will not be described here. To repeat, the outer circular wall of the cylindrical absorption tower body 1 is provided with a first connecting pipe 9, and the outer circular wall of the cylindrical absorption tower body 1 is provided with a second connecting pipe 10. To remove dust in the flue gas, a new type of environmentally friendly ionic liquid is used in the detachment module. The adsorption performance of representative ionic liquids such as guanidinium salts, alcoholamines, and imidazoles to simultaneously absorb sulfur, nitrate, and VOCs in the flue gas is compared. VOCs are represented by toluene, Acetone is used as a representative research. First, single-factor experiments are used to study the optimal process of ionic liquids for simultaneously removing sulfur, nitrate, toluene, and acetone, and then orthogonal experiments are used to optimize suitable ionic liquids in exhaust gas. Modification of ionic liquids, due to the high viscosity of ionic liquids , The cost is high, considering technical methods such as compounding with water, silica gel immobilization, etc., to obtain the ionic liquid ratio for removing various harmful gases, so that it can effectively absorb sulfur, nitrate, and VOC in the flue gas.

Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the outer circular wall of the cylindrical absorption tower body 1 is provided with a first communication hole 12, and the inside of the first communication hole 12 is fixedly equipped with a first centrifugal fan 14, and the first centrifugal fan 14 Fan 14 is an existing structure and will not be described in detail here. The first communication hole 12 is positioned at the bottom surface of the dust filter 5, and the outer circular wall surface of the cylindrical absorption tower body 1 is provided with a second communication hole 13. The ends are fixedly installed with the outer circular wall of the cylindrical absorption tower body 1, the first communication hole 12 and the second communication hole 13 are connected with the first connecting pipe 9, and the outer circular wall of the cylindrical absorption tower body 1 is provided with a second A clamping hole 15, the inside of the first clamping hole 15 is fixedly equipped with a second centrifugal fan 17, the second centrifugal fan 17 is an existing structure and will not be described here, the top surface of the cylindrical absorption tower body 1 is provided with a second Two clamping holes 16, one end of the second connecting pipe 10 is fixedly installed with the top surface of the cylindrical absorption tower body 1, and the other end of the second connecting pipe 10 is fixedly installed with the outer circular wall of the cylindrical absorption tower body 1, and the second A clamping hole 15 and a second clamping hole 16 are connected with the second connecting pipe 10, and a buzzer alarm 11 is fixedly installed on the outer wall of the cylindrical absorption tower body 1, and the buzzer alarm 11 is electrically connected to the gas sensor 8. connection, the buzzer alarm 11 is an existing structure and will not be repeated here. The bottom surface of the cylindrical absorption tower body 1 is fixedly equipped with an air outlet pipe 18, and the air outlet pipe 18 communicates with the cylindrical absorption tower body 1. The first connecting pipe The outer circular wall of 9 is fixedly equipped with a first air valve 19, the first air valve 19 is an existing structure and will not be described in detail here, the outer circular wall of the second connecting pipe 10 is fixedly equipped with a second air valve 20, the second air valve The valve 20 is an existing structure and will not be described in detail here. The outer circular wall of the air outlet pipe 18 is fixedly equipped with a third air valve 21. The third air valve 21 is an existing structure and will not be described in detail here. The cylindrical absorption tower body 1 The outer circular wall surface is provided with a liquid outlet hole 22, the liquid outlet hole 22 is located between the block 7 and the dust filter screen 5, the inner fixed sleeve of the liquid outlet hole 22 is provided with a liquid outlet pipe 23, and the outer circular wall surface of the liquid outlet pipe 23 is fixed. A water valve 24 is installed, and the water valve 24 is an existing structure and will not be repeated here. By setting the first air valve 19, the second air valve 20 and the third air valve 21, the first air valve 19, the second air valve 20 and the third valve 21, when the flue gas circulates inside the cylindrical absorption tower body 1, it is ensured that the pipeline is closed when the pipeline does not need to circulate. The liquid sprayed by the second spray head 6 is discharged from the inside of the cylindrical absorption tower body 1 .

Working principle: Please refer to Figure 1-Figure 4. When in use, by setting the air inlet pipe 3, the flue gas is placed inside the air pipe 3, and then the flue gas enters the interior of the cylindrical absorption tower body 1 and passes through Dust filter screen 5 filters dust, then start the second nozzle 6 to spray environmental protection ionic liquid, then start the first nozzle 4 to spray water or cleaning liquid onto the dust filter screen 5, then turn on the first centrifugal fan 14 and open the first air valve 19 At this time, the flue gas is sucked between the inner bottom surface of the cylindrical absorption tower body 1 and the stopper 7, and then the gas sensor 8 starts to detect. When there is still harmful gas in the flue gas, the buzzer alarm 11 sends out an alarm. Start the second centrifugal fan 17 and open the second air valve 20. At this time, the flue gas enters between the inner top surface of the cylindrical absorption tower body 1 and the dust filter screen 5 through the second connecting pipe 10, thereby performing secondary filtration. When the buzzer 11 is not giving an alarm, open the third gas valve 21 to discharge the gas from the cylindrical absorption tower body 1, then start the water valve 24 to discharge the liquid in the cylindrical absorption tower body 1.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. An integrated device for desulfurization, denitrification and dust removal, characterized in that it comprises: The cylindrical absorption tower body (1), the top surface of the cylindrical absorption tower body (1) is provided with an air inlet hole (2), and the inner fixed sleeve of the air inlet hole (2) is provided with an air inlet pipe (3); The detachment component is arranged inside the cylindrical absorption tower body (1), and is used for detachment of harmful gases in the flue gas. 2. An integrated device for desulfurization, denitrification and dust removal according to claim 1, wherein the detachment component comprises: The first nozzle (4), the first nozzle (4) is fixedly installed on the inner circular wall surface of the cylindrical absorption tower body (1), and the inside of the cylindrical absorption tower body (1) is fixedly installed with a dust filter Net (5), the inner circular wall of the cylindrical absorption tower body (1) is fixedly equipped with a second nozzle (6), and the second nozzle (6) is located on the bottom surface of the dust filter (5), so The inside of the cylindrical absorption tower body (1) is fixedly equipped with a stopper (7), the bottom surface of the described stopper (7) is fixedly installed with a gas sensor (8), and the outer surface of the cylindrical absorption tower body (1) The circular wall surface is provided with a first connecting pipe (9), and the outer circular wall surface of the cylindrical absorption tower body (1) is provided with a second connecting pipe (10). 3. An integrated device for desulfurization, denitrification and dust removal according to claim 2, characterized in that a first communication hole (12) is opened on the outer wall surface of the cylindrical absorption tower body (1), and the first The inside of the communication hole (12) is fixedly equipped with a first centrifugal fan (14), the first communication hole (12) is positioned at the bottom surface of the dust filter (5), and the cylindrical absorption tower body (1) The outer circular wall surface is provided with a second communication hole (13), and the two ends of the first connecting pipe (9) are respectively fixedly installed with the outer circular wall surface of the cylindrical absorption tower body (1), and the first communication hole (12) and the second communication hole (13) are connected with the first connecting pipe (9), and the outer circular wall of the cylindrical absorption tower body (1) is provided with a first clamping hole (15 ), the inside of the first clamping hole (15) is fixedly equipped with a second centrifugal fan (17), and the top surface of the cylindrical absorption tower body (1) is provided with a second clamping hole (16), so One end of the second connecting pipe (10) is fixedly installed with the top surface of the cylindrical absorption tower body (1), and the other end of the second connecting pipe (10) is connected with the cylindrical absorption tower body (1) ) is fixedly installed on the outer circular wall surface, and the first clamping hole (15) and the second clamping hole (16) are connected to the second connecting pipe (10). 4. An integrated device for desulfurization, denitrification and dust removal according to claim 2, characterized in that a buzzer alarm (11) is fixedly installed on the outer circular wall of the cylindrical absorption tower body (1), and the circular An air outlet pipe (18) is fixedly installed on the bottom surface of the cylindrical absorption tower body (1), and the air outlet pipe (18) communicates with the cylindrical absorption tower body (1). 5. An integrated device for desulfurization, denitrification and dust removal according to claim 4, characterized in that a first air valve (19) is fixedly installed on the outer circular wall of the first connecting pipe (9), and the second A second air valve (20) is fixedly installed on the outer circular wall surface of the connecting pipe (10), and a third air valve (21) is fixedly installed on the outer circular wall surface of the air outlet pipe (18). 6. An integrated device for desulfurization, denitrification and dust removal according to claim 2, characterized in that, the outer circular wall of the cylindrical absorption tower body (1) is provided with a liquid outlet (22), and the liquid outlet (22) Located between the stopper (7) and the dust filter (5), the inner fixed sleeve of the liquid outlet hole (22) is provided with a liquid outlet pipe (23), and the liquid outlet pipe (23) The outer circular wall of the water valve (24) is fixedly installed.

Images