CN214715593U

CN214715593U - NOX is catalytic reduction denitrification facility for exhaust-gas treatment

Info

Publication number: CN214715593U
Application number: CN202120043391.0U
Authority: CN
Inventors: 于培勇; 陈超; 陈丽; 许山岩; 王河森
Original assignee: Jinguangheng Environmental Protection Technology Nanjing Co ltd
Current assignee: Jinguangheng Environmental Protection Technology Nanjing Co ltd
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2021-11-16
Anticipated expiration: 2031-01-08

Abstract

The utility model discloses a NOX for exhaust-gas treatment catalytic reduction denitrification facility relates to catalytic reduction denitrification facility technical field, for solving the problem that the treatment effect of current NOX for exhaust-gas treatment catalytic reduction denitrification facility to NOX waste gas is not good. The oxide layer is installed to the top on dusting layer, the reduction layer is installed to the top of oxide layer, the one end on dusting layer is provided with the waste gas inlet port, the intake pipe is installed to the one end of waste gas inlet port, the upper end of filter chamber is provided with the supporting seat, the top of supporting seat is provided with sodium hydroxide filter equipment, one side of the two relative inner walls of oxide layer sets up the body and has places seat one, the top of placing seat one is provided with sodium chlorite oxidation unit, one side of the two relative inner walls of reduction layer is provided with places seat two, the top of placing seat two is provided with sodium thiosulfate reduction device, anticorrosive tuber pipe is installed to the top of reduction layer, centrifugal fan is installed to the other end of anticorrosive tuber pipe.

Description

NOX is catalytic reduction denitrification facility for exhaust-gas treatment

Technical Field

The utility model relates to a catalytic reduction denitrification facility technical field specifically is a NOx catalytic reduction denitrification facility for exhaust-gas treatment.

Background

The nitrogen oxide waste gas is one of main pollutants of air pollution, the nitrogen oxide treatment is to control, recover or utilize the nitrogen oxide in the waste gas by improving the combustion process and equipment or adopting methods of smoke discharge and denitrification such as catalytic reduction, absorption, adsorption and the like, and in order to prevent the NOx waste gas from polluting the environment, a catalytic reduction denitration device is used for denitration treatment of the NOx waste gas, so that the pollution of the NOx waste gas to the environment can be effectively avoided.

However, the conventional catalytic reduction denitration device for NOX exhaust gas treatment has a poor treatment effect on NOX exhaust gas, and cannot treat NOX exhaust gas quickly and effectively, so that a catalytic reduction denitration device for NOX exhaust gas treatment is urgently needed in the market to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a catalytic reduction denitrification facility for NOX exhaust-gas treatment to solve the current NOX for exhaust-gas treatment catalytic reduction denitrification facility that proposes in the above-mentioned background art not good to the treatment effect of NOX waste gas, can not be quick effectual to NOX waste gas problem of handling.

In order to achieve the above object, the utility model provides a following technical scheme: a catalytic reduction denitration device for NOX waste gas treatment comprises a denitration device tower, wherein the denitration device tower comprises a dust removal layer, an oxidation layer and a reduction layer, the oxidation layer is arranged above the dust removal layer, the reduction layer is arranged above the oxidation layer, one side of the lower end of the dust removal layer is provided with a sewage discharge outlet, one end of the dust removal layer is provided with a water inlet, the other end of the dust removal layer is provided with a waste gas inlet, one end of the waste gas inlet is provided with an air inlet pipe, a filtering chamber is arranged inside the dust removal layer, the upper end of the filtering chamber is provided with a supporting seat, a sodium hydroxide filtering device is arranged above the supporting seat, one side of two opposite inner walls of the oxidation layer is provided with a first placing seat, a sodium chlorite oxidation device is arranged above the first placing seat, one side of two opposite inner walls of the reduction layer is provided with a second placing seat, and a sodium thiosulfate reduction device is arranged above the placing seat II, an air exhaust seat is arranged at the upper end of the reduction layer, an anti-corrosion air pipe is arranged above the air exhaust seat, and a centrifugal fan is arranged at the other end of the anti-corrosion air pipe.

Preferably, the upper end of the dust removing layer is provided with a first mounting seat, the lower end of the oxidation layer is provided with a first connecting seat, the first mounting seat is fixedly connected with the first connecting seat through a first fixing bolt, the upper end of the oxidation layer is provided with a second mounting seat, the lower end of the reduction layer is provided with a second connecting seat, and the second connecting seat is fixedly connected with the second mounting seat through a second fixing bolt.

Preferably, one side of dust removal layer is provided with the storage water tank, the internally mounted of storage water tank has the high pressure water pump, the outlet end of high pressure water pump is installed the inlet tube, the other end and the water inlet of inlet tube pass through threaded connection and fix.

Preferably, one side of the sodium hydroxide filtering device is provided with a first replacement port, one side of the first replacement port is provided with a first sealing door, one side of the sodium chlorite oxidation device is provided with a second replacement port, one side of the second replacement port is provided with a second sealing door, one side of the sodium thiosulfate reduction device is provided with a third replacement port, and one side of the third replacement port is provided with a third sealing door.

Preferably, one end of the anticorrosive air pipe is provided with a fixed seat, and the fixed seat is fixedly connected with the air exhaust seat through a fastening bolt.

Preferably, a support frame is installed below the centrifugal fan, an air suction opening is formed in one end of the centrifugal fan, an air exhaust opening is formed in the upper end of the centrifugal fan, and the anticorrosive air pipe is fixedly connected with the air suction opening through a fastening bolt II.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this kind of NOX for waste gas treatment catalytic reduction denitrification facility installs sodium hydroxide filter equipment, sodium chlorite oxidation unit and sodium thiosulfate reduction device, nitric acid in the NOX waste gas of detaching that can be convenient through sodium hydroxide filter equipment, the NO1 oxidation one-tenth NO2 with in the NOX waste gas that can be convenient through the sodium chlorite oxidation unit of installation, can be convenient through the sodium thiosulfate reduction device of installation reduce NO2 into N2 and discharge, can handle NOX waste gas fast effectually like this, can be fine avoid NOX waste gas to cause the pollution to the atmospheric environment.

2. This kind of NOX is catalytic reduction denitrification facility for exhaust-gas treatment is at sodium hydroxide filter equipment, one side of sodium chlorite oxidation unit and sodium thiosulfate reduction device is provided with respectively changes mouthful one, change mouthful two and change mouthful three, change one side of mouthful one and install sealing door one, change one side of mouthful two and install sealing door two, change one side of mouthful three and install sealing door three, when the inefficacy condition appears in sodium hydroxide filter equipment, sodium chlorite oxidation unit and sodium thiosulfate reduction device use, can be convenient through opening sealing door one, sealing door two and sealing door three, the treatment to sodium hydroxide filter equipment that like this can be convenient, sodium chlorite oxidation unit and sodium thiosulfate reduction device change, avoid causing the influence to NOX exhaust-gas's processing.

Drawings

FIG. 1 is an overall front view of the present invention;

fig. 2 is an overall sectional view of the present invention;

fig. 3 is a partially enlarged view of the area a of fig. 2 according to the present invention.

In the figure: 1. a knock-out tower; 2. a dust removal layer; 201. a first mounting seat; 202. a sewage draining outlet; 203. a water inlet; 204. a supporting seat; 205. replacing the first port; 206. an exhaust gas inlet; 207. a filtering chamber; 3. an oxide layer; 301. a first connecting seat; 302. a second mounting seat; 303. placing a first seat; 304. replacing the second port; 4. a reduction layer; 401. a second connecting seat; 402. an air exhaust seat; 403. a second placing seat; 404. replacing the third port; 5. fixing a first bolt; 6. fixing a second bolt; 7. a water storage tank; 8. a high pressure water pump; 9. a water inlet pipe; 10. a sodium hydroxide filtration unit; 11. a first sealing door; 12. a sodium chlorite oxidation unit; 13. a second sealing door; 14. a sodium thiosulfate reduction device; 15. an anti-corrosion air pipe; 1501. a fixed seat; 16. fastening a first bolt; 17. a centrifugal fan; 1701. an air extraction opening; 1702. an exhaust port; 18. fastening a second bolt; 19. a support frame; 20. an air inlet pipe; 21. and a third sealing door.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: a catalytic reduction denitration device for NOX waste gas treatment comprises a denitration device tower 1, wherein the denitration device tower 1 comprises a dust removal layer 2, an oxidation layer 3 and a reduction layer 4, the oxidation layer 3 is arranged above the dust removal layer 2, the reduction layer 4 is arranged above the oxidation layer 3, one side of the lower end of the dust removal layer 2 is provided with a sewage outlet 202, one end of the dust removal layer 2 is provided with a water inlet 203, the other end of the dust removal layer 2 is provided with a waste gas inlet 206, one end of the waste gas inlet 206 is provided with an air inlet pipe 20, a filtering chamber 207 is arranged inside the dust removal layer 2, the upper end of the filtering chamber 207 is provided with a supporting seat 204, a sodium hydroxide filtering device 10 is arranged above the supporting seat 204, one side of two opposite inner walls of the oxidation layer 3 is provided with a placing seat I303, a sodium chlorite oxidation device 12 is arranged above the placing seat I303, one side of two opposite inner walls of the reduction layer 4 is provided with a placing seat II 403, a sodium thiosulfate reduction device 14 is arranged above the second placing seat 403, an air exhaust seat 402 is arranged at the upper end of the reduction layer 4, an anti-corrosion air pipe 15 is arranged above the air exhaust seat 402, and a centrifugal fan 17 is arranged at the other end of the anti-corrosion air pipe 15.

Further, the upper end on dust removal layer 2 is provided with mount pad one 201, the lower extreme of oxide layer 3 is provided with connecting seat one 301, through a fixing bolt one 5 fixed connection between mount pad one 201 and the connecting seat one 301, the upper end of oxide layer 3 is provided with mount pad two 302, the lower extreme of reduction layer 4 is provided with connecting seat two 401, through two 6 fixed connection of fixing bolt between connecting seat two 401 and the mount pad two 302, can be convenient to dust removal layer 2, oxide layer 3 and reduce and install fixedly between the layer 4.

Further, one side of dust removal layer 2 is provided with storage water tank 7, the internally mounted of storage water tank 7 has high pressure water pump 8, inlet tube 9 is installed to high pressure water pump 8's play water end, the other end of inlet tube 9 passes through threaded connection with water inlet 203 and fixes, storage water tank 7 through the installation, make when opening high pressure water pump 8, can make the inside water of storage water tank 7 get into the filter chamber 207 of the inside setting of dust removal layer 2 through inlet tube 9, like this can be convenient filter the dust in the waste gas.

Furthermore, one side of the sodium hydroxide filtering device 10 is provided with a first replacement port 205, one side of the first replacement port 205 is provided with a first sealing door 11, one side of the sodium chlorite oxidation device 12 is provided with a second replacement port 304, one side of the second replacement port 304 is provided with a second sealing door 13, one side of the sodium thiosulfate reduction device 14 is provided with a third replacement port 404, and one side of the third replacement port 404 is provided with a third sealing door 21, so that the sodium hydroxide filtering device 10, the sodium chlorite oxidation device 12 and the sodium thiosulfate reduction device 14 can be conveniently replaced, and the waste gas treatment effect of the denitration device tower 1 can be better.

Further, one end of the anti-corrosion air pipe 15 is provided with a fixing base 1501, the fixing base 1501 is fixedly connected with the air exhaust base 402 through a fastening bolt 16, and the anti-corrosion air pipe 15 and the reduction layer 4 can be conveniently installed and fixed.

Further, a support frame 19 is installed below the centrifugal fan 17, an air suction opening 1701 is arranged at one end of the centrifugal fan 17, an exhaust opening 1702 is arranged at the upper end of the centrifugal fan 17, the anticorrosion air pipe 15 is fixedly connected with the air suction opening 1701 through a second fastening bolt 18, the centrifugal fan 17 can be well supported through the support frame 19, and the anticorrosion air pipe 15 and the air suction opening 1701 can be conveniently and fixedly connected through the second fastening bolt 18.

The working principle is as follows: when in use, the high-pressure water pump 8 is turned on, so that the water in the water storage tank 7 enters the filtering chamber 207 arranged in the dust removing layer 2 through the water inlet pipe 9 by the high-pressure water pump 8, then the NOX waste gas is introduced into the dust removing layer 2 from the waste gas inlet 206, the NOX waste gas is filtered through the water through the installed air inlet pipe 20, so that the dust in the NOX waste gas is filtered out, then the centrifugal fan 17 is turned on, the anticorrosive air pipe 15 generates suction force, so that the NOX waste gas filtered by the clean water can be adsorbed, the NOX waste gas rises, when the NOX waste gas passes through the sodium hydroxide filtering device 10, the water vapor in the NOX waste gas can be filtered, then the NOX waste gas passes through the sodium chlorite oxidation device 12, the NOX waste gas can be oxidized into NO2 by the sodium chlorite oxidation device 12, and then the NO2 is reduced continuously by the sodium thiosulfate reduction device 14, NO2 is reduced to N2 to be discharged, so that the pollution of NOX waste gas to the atmospheric environment can be avoided, and the NOX waste gas can be treated very quickly and effectively, when the sodium hydroxide filtering device 10, the sodium chlorite oxidation device 12 and the sodium thiosulfate reduction device 14 are saturated, the sodium hydroxide filtering device 10, the sodium chlorite oxidation device 12 and the sodium thiosulfate reduction device 14 can be replaced very conveniently by opening the first sealing door 11, the second sealing door 13 and the third sealing door 21, so that the treatment of NOX waste gas is prevented from being influenced, and after the operation of the denitration device tower 1 is completed, the sewage in the filtering chamber 207 is discharged by opening the sewage discharge outlet 202 and then treated.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a NOx is catalytic reduction denitrification facility for exhaust-gas treatment, includes denitration device tower (1), its characterized in that: the denitration device tower (1) comprises a dedusting layer (2), an oxidation layer (3) and a reduction layer (4), the oxidation layer (3) is installed above the dedusting layer (2), the reduction layer (4) is installed above the oxidation layer (3), a sewage draining outlet (202) is arranged on one side of the lower end of the dedusting layer (2), a water inlet (203) is arranged at one end of the dedusting layer (2), a waste gas inlet (206) is arranged at the other end of the dedusting layer (2), an air inlet pipe (20) is installed at one end of the waste gas inlet (206), a filtering chamber (207) is arranged inside the dedusting layer (2), a supporting seat (204) is arranged at the upper end of the filtering chamber (207), a sodium hydroxide filtering device (10) is arranged above the supporting seat (204), and a first placing seat (303) is arranged on one side of the inner wall of two opposite sides of the oxidation layer (3), a sodium chlorite oxidation device (12) is arranged above the first placing seat (303), a second placing seat (403) is arranged on one side of two opposite inner walls of the reducing layer (4), a sodium thiosulfate reducing device (14) is arranged above the second placing seat (403), an air exhaust seat (402) is arranged at the upper end of the reducing layer (4), an anti-corrosion air pipe (15) is arranged above the air exhaust seat (402), and a centrifugal fan (17) is arranged at the other end of the anti-corrosion air pipe (15).

2. The catalytic reduction denitration apparatus for NOX exhaust gas treatment according to claim 1, characterized in that: the upper end of dust layer (2) is provided with mount pad one (201), the lower extreme of oxide layer (3) is provided with connecting seat one (301), through fixing bolt one (5) fixed connection between mount pad one (201) and connecting seat one (301), the upper end of oxide layer (3) is provided with mount pad two (302), the lower extreme of reduction layer (4) is provided with connecting seat two (401), through fixing bolt two (6) fixed connection between connecting seat two (401) and mounting seat two (302).

3. The catalytic reduction denitration apparatus for NOX exhaust gas treatment according to claim 1, characterized in that: one side of dust layer (2) is provided with storage water tank (7), the internally mounted of storage water tank (7) has high pressure water pump (8), inlet tube (9) are installed to the play water end of high pressure water pump (8), the other end and water inlet (203) of inlet tube (9) pass through threaded connection and fix.

4. The catalytic reduction denitration apparatus for NOX exhaust gas treatment according to claim 1, characterized in that: one side of sodium hydroxide filter equipment (10) is provided with changes mouthful (205), sealing door one (11) are installed to the one side of changing mouthful (205), one side of sodium chlorite oxidation unit (12) is provided with changes mouthful two (304), sealing door two (13) are installed to the one side of changing mouthful two (304), one side of sodium thiosulfate reduction unit (14) is provided with changes mouthful three (404), sealing door three (21) are installed to the one side of changing mouthful three (404).

5. The catalytic reduction denitration apparatus for NOX exhaust gas treatment according to claim 1, characterized in that: one end of the anti-corrosion air pipe (15) is provided with a fixed seat (1501), and the fixed seat (1501) is fixedly connected with the air exhaust seat (402) through a fastening bolt I (16).

6. The catalytic reduction denitration apparatus for NOX exhaust gas treatment according to claim 1, characterized in that: a supporting frame (19) is installed below the centrifugal fan (17), an air suction opening (1701) is formed in one end of the centrifugal fan (17), an air exhaust opening (1702) is formed in the upper end of the centrifugal fan (17), and the anticorrosion air pipe (15) and the air suction opening (1701) are fixedly connected through a second fastening bolt (18).