CN219231935U

CN219231935U - Industrial boiler waste gas environmental protection denitrification facility

Info

Publication number: CN219231935U
Application number: CN202223088655.8U
Authority: CN
Inventors: 彭树芸; 杨春晓; 孔垂正; 张学东; 夏俊
Original assignee: Yunnan Zhongbiao Electromechanical Equipment Co ltd
Current assignee: Yunnan Zhongbiao Electromechanical Equipment Co ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-06-23
Anticipated expiration: 2032-11-16

Abstract

The utility model discloses an environment-friendly denitration device for industrial boiler waste gas, and relates to the technical field of waste gas treatment; in the existing structure, the environmental protection denitration treatment equipment for the industrial boiler waste gas is simpler, and most of the equipment adopts a filter screen for filtering, and the equipment comprises; the intake pipe, intake pipe top switch-on is connected with many shunt tubes, carry out the reposition of redundant personnel processing by the waste gas that the shunt tubes produced the boiler, shunt tube outer loop sealing connection has a filtration jar and No. two filtration jars, no. two filtration jar one side is provided with ionization jar, no. two ionization jars have been arranged to ionization jar one side, no. two ionization jar top one side switch-on is connected with the blast pipe, the blast pipe outer loop switch-on is connected with urea and sprays the jar, the shunt tubes is located and has seted up the exhaust hole in filtration jar and No. two filtration jar inner chamber sections, equipment combines a lot of filtration, the ionization carries out aeration simultaneously, heat, add urea and filtration, the content of nitre in the waste gas can greatly reduced.

Description

Industrial boiler waste gas environmental protection denitrification facility

Technical Field

The utility model relates to the technical field of boiler waste gas treatment, in particular to an environment-friendly denitration device for industrial boiler waste gas.

Background

Industrial boilers are a general term of industrial boilers, and are usually used for generating electricity or supplying gas, for example, chemical fertilizer factories can be vaporized by steam, coal is used as raw material, chemical fertilizers are typical industrial boilers, most of industrial boilers are coal-fired, waste heat is recovered by gas-fired waste heat boilers, a large amount of fossil fuels are required to be utilized in the use process of the industrial boilers, besides a large amount of heat is generated in the combustion process of the fossil fuels, and pollution such as smoke dust, sulfides, nitrifiers and the like is usually generated, if the pollutants are directly discharged into the air, serious air pollution is caused, so that corresponding waste gas treatment devices are usually built in the construction process of the industrial boilers.

The prior structure has the advantages that the environmental protection denitration treatment equipment for the industrial boiler waste gas is simpler, most of the equipment adopts a filter screen for filtering, the filtering effect is low, a large number of filter screens and regular replacement are needed, and aiming at the problems, the inventor provides an environmental protection denitration device for the industrial boiler waste gas, which is used for solving the problems.

Disclosure of Invention

In order to solve the problems that the prior structure has simpler equipment for environmental protection and denitration treatment of industrial boiler waste gas, most of the equipment adopts a filter screen for filtering, the filtering effect is low, and a large number of filter screens and regular replacement are required; the utility model aims to provide an environment-friendly denitration device for industrial boiler waste gas.

In order to solve the technical problems, the utility model adopts the following technical scheme: the device comprises an air inlet pipe, a plurality of shunt pipes are connected to the top end of the air inlet pipe in a conducting way, exhaust gas generated by a boiler is shunted by the shunt pipes, a first filter tank and a second filter tank are hermetically connected to the outer ring of the shunt pipes, a first ionization tank is arranged on one side of the second filter tank, a second ionization tank is arranged on one side of the first ionization tank, an exhaust pipe is connected to one side of the top end of the second ionization tank in a conducting way, urea spraying tanks are connected to the outer ring of the exhaust pipe in a conducting way, exhaust holes are formed in the inner cavity sections of the shunt pipes, exhaust holes are reserved in the shunt pipes after the exhaust holes are filled with the exhaust gas, and then the water source in the shunt pipes is used for simple filtration to separate the nitrate of the exhaust gas;

ionization tank B is fixedly connected with on one side of the top of the second ionization tank, fixed rod B is fixedly connected with on the bottom of ionization tank B, and fixed rod B is located in the inner cavity of the second ionization tank, fixed rod B is fixedly connected with ionization rod B, surface fixedly connected with heating rod is located on one side of ionization rod B, aerator is fixedly connected with on the bottom of the second ionization tank, the output end of the aerator is located in the inner cavity of the second ionization tank and is connected with a gas distributing pipe, the top of the gas distributing pipe is connected with an aeration pipe, ionization, heating and aeration are added in the second ionization tank, and separation of nitrate in waste gas is accelerated.

Preferably, the top ends of the first filter tank, the second filter tank and the first ionization tank are respectively connected with a pressure relief pipe in a conducting way, the outer ring of the pressure relief pipe is connected with a pressure relief valve in a sealing way, the other end of the pressure relief pipe of the first filter tank is connected with the bottom of the second filter tank, the other end of the pressure relief pipe of the second filter tank is connected with the bottom of the first ionization tank, the other ends of the pressure relief pipes of the first ionization tank and the bottom of the second ionization tank are respectively fixed with an air duct, air holes are formed in the surfaces of the air ducts, the air ducts of the inner cavities of the first ionization tank are connected with one end of the pressure relief pipe of the second filter tank, the air ducts of the inner cavities of the second ionization tank are connected with one end of the pressure relief pipe of the first ionization tank, and therefore waste gas is led into the second filter tank from the first ionization tank, and finally led into the second ionization tank and discharged;

simultaneously, a filter tank, a second filter tank, an ionization tank and a second ionization tank bottom are all connected with a drain pipe, the outer ring of the drain pipe is connected with a drain valve in a closed mode, the other end of the drain pipe of the first filter tank is connected with the bottom of the second filter tank, the other end of the drain pipe of the second filter tank is connected with the bottom of the first ionization tank, the other end of the drain pipe of the first ionization tank is connected with the bottom of the second ionization tank, and then the circulation of water sources inside the first filter tank, the second filter tank, the first ionization tank and the second ionization tank is realized.

Preferably, dead lever B is hollow structure, and the inner chamber has arranged the power supply cable, and the power supply cable links to each other with the heating rod electricity, ionization tank top fixedly connected with ionization case A, ionization case A bottom fixedly connected with dead lever A, and dead lever A is located ionization tank inner chamber, dead lever A bottom fixedly connected with ionization rod A, ionization tank inside water source is ionized to a number by ionization rod A, urea sprays the tank inner chamber and has arranged and has sprayed the ring, spray ring top and be located urea and spray tank inner wall and have arranged the active carbon filter screen, urea sprays tank one side conduction and is connected with the feed pipe, and the feed pipe is conducted mutually with spraying the ring, feed pipe one end conduction is connected with the booster pump, spray urea when filtering exhaust emission, reduce the nitre content in the waste gas again.

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

1. the equipment combines multiple times of filtration and ionization to perform aeration, heating, urea addition and filtration at the same time, so that the content of nitrate in the waste gas can be greatly reduced;

2. the equipment adopts a flowing water source, so that impurity precipitation is avoided, later maintenance is facilitated, and meanwhile, the emission of other elements in the waste gas can be reduced;

3. the chemical substances in the filtrate are convenient for recycling in the later period, and the whole structure of the device is simple and convenient and is suitable for long-term use.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model.

FIG. 2 is a schematic diagram of a first filter tank according to the present utility model.

Fig. 3 is a schematic diagram of the ionization chamber of the first embodiment of the present utility model.

Fig. 4 is a schematic diagram of the structure of the ionization tank No. two of the present utility model.

FIG. 5 is a schematic view of the urea spray tank structure of the present utility model.

In the figure: 1. an air inlet pipe; 2. a shunt; 3. a first filter tank; 31. a pressure relief tube; 32. a pressure release valve; 33. a drain pipe; 34. a drain valve; 35. an exhaust hole; 4. a second filtering tank; 5. an ionization tank I; 51. an ionization box A; 52. a fixed rod A; 53. an ionization bar A; 54. an air duct; 6. a second ionization tank; 61. an aerator; 611. a gas distribution pipe; 612. an aeration pipe; 62. an exhaust pipe; 63. a urea spray tank; 631. a spray ring; 632. an activated carbon filter screen; 633. a feed pipe; 634. a booster pump; 64. an ionization box B; 65. a fixed rod B; 66. an ionization bar B; 67. and (5) heating the rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one: as shown in fig. 1-5, the utility model provides an environment-friendly denitration device for industrial boiler waste gas, which comprises an air inlet pipe 1, wherein a plurality of shunt pipes 2 are connected to the top end of the air inlet pipe 1 in a conducting way, a first filter tank 3 and a second filter tank 4 are connected to the outer ring of the shunt pipes 2 in a sealing way, a first ionization tank 5 is arranged on one side of the second filter tank 4, a second ionization tank 6 is arranged on one side of the first ionization tank 5, an exhaust pipe 62 is connected to the top end side of the second ionization tank 6 in a conducting way, a urea spraying tank 63 is connected to the outer ring of the exhaust pipe 62 in a conducting way, and exhaust holes 35 are formed in the inner cavity sections of the shunt pipes 2, which are positioned in the first filter tank 3 and the second filter tank 4.

Ionization tank B64 is fixedly connected with one side of the top end of ionization tank B6, fixing rod B65 is fixedly connected with the bottom end of ionization tank B64, fixing rod B65 is located the inner cavity of ionization tank B6, fixing rod B65 is fixedly connected with ionization rod B66, ionization rod B66 is fixedly connected with heating rod 67 on one side of fixing rod B65, aerator 61 is fixedly connected with the bottom end of ionization tank B6, the output end of aerator 61 is located the inner cavity of ionization tank B6 and is connected with gas distribution pipe 611, and the top end of gas distribution pipe 611 is connected with aeration pipe 612.

Through adopting the technical scheme, corresponding height or bending can be set according to actual demands during use, the water source in the tank is prevented from flowing backwards through the exhaust hole 35, after the inside of the shunt tube 2 is filled with smoke, the smoke is discharged from the exhaust hole 35 of the shunt tube 2, and then the water sources in the first filtering tank 3, the second filtering tank 4, the first ionization tank 5 and the second ionization tank 6 are used for simple filtration, so that the nitrate of the waste gas is separated, urea is sprayed when the waste gas is discharged, and the nitrate content in the waste gas is reduced again by combining the active carbon filter screen 632;

the top ends of the first filter tank 3, the second filter tank 4 and the first ionization tank 5 are respectively connected with a pressure relief pipe 31 in a conducting way, the outer ring of the pressure relief pipe 31 is connected with a pressure relief valve 32 in a sealing way, the other end of the pressure relief pipe 31 of the first filter tank 3 is connected with the bottom of the second filter tank 4, the other end of the pressure relief pipe 31 of the second filter tank 4 is connected with the bottom of the first ionization tank 5, the other end of the pressure relief pipe 31 of the first ionization tank 5 is connected with the bottom of the second ionization tank 6, meanwhile, the bottoms of the inner cavities of the first ionization tank 5 and the second ionization tank 6 are respectively fixed with an air duct 54, air holes are formed in the surfaces of the air ducts 54, the air ducts 54 of the inner cavity of the first ionization tank 5 are connected with one end of the pressure relief pipe 31 of the second filter tank 4, and the air duct 54 of the inner cavity of the second ionization tank 6 are connected with one end of the pressure relief pipe 31 of the first ionization tank 5, so that waste gas enters the second filter tank 4 from the first filter tank 3, then enters the first ionization tank 5, finally enters the second ionization tank 6 and is discharged;

through adopting above-mentioned technical scheme, during the use because No. one filters jar 3, no. two filter jar 4 and No. one ionization jar 5 and No. two ionization jar 6 are inside to be full of gas all the time, in the gas after will filtering by relief valve 32 is discharged next jar, filters or ionizes once more, guarantees the whole efficiency to exhaust treatment of equipment.

Embodiment two: the utility model provides a filter tank 3, no. two filter tanks 4, the equal switch-on of ionization jar 5 and No. two ionization jar 6 bottom is connected with drain pipe 33, drain pipe 33 outer loop airtight switch-on is connected with drain valve 34, the drain pipe 33 other end of No. one filter tank 3 and No. two filter tank 4 bottoms switch-on, the drain pipe 33 other end of No. two filter tanks 4 and No. one ionization jar 5 bottoms switch-on, the drain pipe 33 other end of No. one ionization jar 5 and No. two ionization jar 6 bottoms switch-on, and then realize the circulation of the inside water source of No. one filter tank 3, no. two filter tanks 4, no. one ionization jar 5 and No. two ionization jar 6, fixing lever B65 is hollow structure, and the inner chamber has arranged the power supply cable, and power supply cable and heating rod 67 electrical connection, no. one ionization jar 5 top fixedly connected with ionization box A51, ionization box A51 bottom fixedly connected with fixing lever A52, and fixing lever A52 is located No. one ionization jar 5 inner chamber, ionization bar A53 carries out ionization to No. 5 inside by ionization jar 633, urea spray ring 63 is arranged on the ring 631, spray ring 631 is connected with urea filter screen 63, spray ring 631 and spray supply pipe 631 is connected with one side of spraying ring and spray supply pipe.

Through adopting above-mentioned technical scheme, during the use because filtration jar 3, filtration jar 4 and ionization jar 5 and ionization jar 6 are inside be full of the water source all the time, need continuously pour into and discharge, the water source that filters after filtration jar 3 and No. two filtration jar 4 gets into ionization jar 5, carry out the ionization to the water source after filtering by ionization jar 5, discharge ionization jar 6 No. two after the ionization, carry out ionization, heating and aeration to waste water by ionization jar 6 No. two, make the nitrate element in the waste water separate with the hydrogen ion, spray urea when filtering waste gas exhaust simultaneously, reduce the nitrate content in the waste gas again.

Working principle: the boiler exhaust tube is connected by the air inlet pipe 1, the exhaust gas is supplied into the inner cavities of the first filtering tank 3 and the second filtering tank 4 through the shunt pipe 2, the gas is discharged through the air exhaust hole 35, the water source is injected into the inner cavities of the first filtering tank 3 and the second filtering tank 4, nitrogen oxides in the gas are oxidized into nitrogen dioxide by the water source, the nitrogen dioxide is dissolved in the water and is prepared into HNO3, the initially filtered exhaust gas is discharged into the first ionization tank 5 through the combination of the pressure release pipe 31 and the pressure release valve 32 after the first filtering tank 3 and the second filtering tank 4 are filtered, the water source in the first filtering tank 3 and the second filtering tank 4 is simultaneously injected into the first ionization tank 5 through the water drain pipe 33 and the water drain valve 34, the ionization rod A53 is powered by the ionization box A51 to electrolyze HNO3 in water, hydrogen ions are separated, the hydrogen ions seep out of the water and are discharged, NO3 is left to be ionized again by the ionization rod B66 in the ionization tank No. two 6, meanwhile, the aeration treatment is carried out by combining the aerator 61 with the aerator pipe 612, the heating rod 67 is used for heating treatment while the aeration treatment is carried out, oxygen ions in the NO3 are separated, a water source is discharged into the filtration tank No. 3 again for circulation, the water source is discharged after a certain period of time, the urea spraying tank 63 is operated, urea is sprayed when the waste gas is discharged, and the nitrate content in the waste gas is reduced again.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. The utility model provides an industrial boiler waste gas environmental protection denitrification facility, includes intake pipe (1), its characterized in that: the novel air inlet pipe is characterized in that a plurality of shunt pipes (2) are connected to the top end of the air inlet pipe (1) in a conducting mode, a first filter tank (3) and a second filter tank (4) are connected to the outer ring of the shunt pipes (2) in a sealing mode, a first ionization tank (5) is arranged on one side of the second filter tank (4), a second ionization tank (6) is arranged on one side of the first ionization tank (5), an exhaust pipe (62) is connected to one side of the top end of the second ionization tank (6) in a conducting mode, a urea spraying tank (63) is connected to the outer ring of the exhaust pipe (62) in a conducting mode, and exhaust holes (35) are formed in inner cavity sections of the first filter tank (3) and the second filter tank (4);

ionization case B (64) is fixedly connected with one side of the top of ionization tank (6), ionization case B (64) bottom fixedly connected with dead lever B (65), just dead lever B (65) are located No. two ionization tank (6) inner chambers, dead lever B (65) bottom fixedly connected with ionization stick B (66), ionization stick B (66) one side is located dead lever B (65) surface fixedly connected with heating rod (67), no. two ionization tank (6) bottom fixedly connected with aerator (61), aerator (61) output is located No. two ionization tank (6) inner chambers on-connection has gas-dividing pipe (611), gas-dividing pipe (611) top on-connection has aeration pipe (612).

2. The industrial boiler waste gas environment-friendly denitration device according to claim 1, wherein an ionization box A (51) is fixedly connected to the top of the ionization tank A (5), a fixing rod A (52) is fixedly connected to the bottom end of the ionization box A (51), the fixing rod A (52) is located in the inner cavity of the ionization tank A (5), and an ionization rod A (53) is fixedly connected to the bottom end of the fixing rod A (52).

3. The industrial boiler waste gas environment-friendly denitration device according to claim 1, wherein the pressure release pipes (31) are connected to the top ends of the first filtering tank (3), the second filtering tank (4) and the first ionization tank (5) in a conducting mode, the pressure release pipes (31) are connected with the pressure release valve (32) in an airtight mode through the outer ring, the other ends of the pressure release pipes (31) of the first filtering tank (3) are connected with the bottom of the second filtering tank (4), the other ends of the pressure release pipes (31) of the second filtering tank (4) are connected with the bottom of the first ionization tank (5), and the other ends of the pressure release pipes (31) of the first ionization tank (5) are connected with the bottom of the second ionization tank (6).

4. The industrial boiler waste gas environment-friendly denitration device according to claim 1, wherein the first filter tank (3), the second filter tank (4), the first ionization tank (5) and the second ionization tank (6) are connected with a drain pipe (33) in a conducting mode, the outer ring of the drain pipe (33) is connected with a drain valve (34) in a sealing mode, the other end of the drain pipe (33) of the first filter tank (3) is connected with the bottom of the second filter tank (4), the other end of the drain pipe (33) of the second filter tank (4) is connected with the bottom of the first ionization tank (5), and the other end of the drain pipe (33) of the first ionization tank (5) is connected with the bottom of the second ionization tank (6).

5. The industrial boiler waste gas environment-friendly denitration device according to claim 1, wherein the bottoms of the inner cavities of the first ionization tank (5) and the second ionization tank (6) are respectively fixed with an air duct (54), air holes are formed in the surfaces of the air ducts (54), the air duct (54) of the inner cavity of the first ionization tank (5) is communicated with the pressure release pipe (31) of the second filtration tank (4), and the air duct (54) of the inner cavity of the second ionization tank (6) is communicated with the pressure release pipe (31) of the first ionization tank (5).

6. An industrial boiler waste gas environment-friendly denitration device as claimed in claim 1, wherein a spraying ring (631) is arranged in the inner cavity of the urea spraying tank (63), and an activated carbon filter screen (632) is arranged on the inner wall of the urea spraying tank (63) above the spraying ring (631).

7. The industrial boiler waste gas environment-friendly denitration device as claimed in claim 6, wherein a feed pipe (633) is connected to one side of the urea spraying tank (63) in a conducting manner, the feed pipe (633) is connected to the spraying ring (631) in a conducting manner, and a booster pump (634) is connected to one end of the feed pipe (633) in a conducting manner.

8. The industrial boiler waste gas environment-friendly denitration device according to claim 1, wherein the fixing rod B (65) is of a hollow structure, a power supply cable is arranged in an inner cavity, and the power supply cable is electrically connected with the heating rod (67).