CN219502413U

CN219502413U - Spray type exhaust emission device

Info

Publication number: CN219502413U
Application number: CN202320168919.6U
Authority: CN
Inventors: 彭方清; 李贵; 冉超林; 李彬; 罗章海
Original assignee: Chongqing Runfang Decoration Engineering Co ltd
Current assignee: Chongqing Runfang Decoration Engineering Co ltd
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-08-11
Anticipated expiration: 2033-02-09

Abstract

The utility model discloses a spray type waste gas discharge device, which comprises: the casing, the inside wall fixed mounting of casing has the sealed cowling, and the middle part cavity of sealed cowling, and fixed mounting has the fixed plate, and the lower surface of fixed plate just is located middle part fixedly connected with and goes out liquid frame, goes out the downside of liquid frame and is provided with the leading truck, and the leading truck is round platform shape, and the roof and the diapire of leading truck are all opened. According to the utility model, the exhaust gas is introduced into the shell from the air inlet pipe, the exhaust gas sequentially passes through the guide frame, the guide cavity, the liquid outlet frame and the sealing cover, the nitric acid in the exhaust gas fully reacts in the first annular nozzle, the exhaust gas floating from the guide cavity is secondarily absorbed in the second annular nozzle, so that the nitric acid in the exhaust gas fully contacts with sprayed ammonia water, the treatment effect on the exhaust gas is improved, ammonia water liquid is reserved on the baffle plate, the guide cavity is not communicated with the lower side of the guide frame, and the treated exhaust gas and untreated exhaust gas are separated from each other.

Description

Spray type exhaust emission device

Technical Field

The utility model relates to the technical field of exhaust emission, in particular to an exhaust emission device.

Background

The pickling of steel is to ensure the surface quality of the steel to be produced by providing the steel with a clean and active surface, and to obtain such a surface, it is necessary to surface-treat the steel with nitric acid to remove iron oxide from the surface. Waste gas is generated during pickling, and the waste gas is required to be treated by using a waste gas discharge device so as to avoid air pollution. When some exhaust emission devices are used, the spray head is adopted to spray the exhaust gas at the lower side, but the exhaust gas is in direct spray type or rotary table spray type, and a lot of exhaust gas passes through a gap between the sealing cover and the maximum spray range, so that the exhaust gas is not fully contacted with sprayed ammonia water, and the exhaust gas treatment effect is poor.

Retrieved, as application number: in the patent of CN201820421081.6, although five showerheads are adopted for each layer, the design can make the particulate matters in the exhaust gas fully contact, so that the next treatment is easier, the emission requirement is better improved, but many exhaust gases still pass through the gap between the sealing cover and the maximum range of spraying, so that the absorption efficiency of the exhaust gases is sufficient.

Disclosure of Invention

The utility model aims to provide a spray type exhaust gas discharge device, which can solve the technical problem that the exhaust gas is in insufficient contact with sprayed ammonia water, so that the exhaust gas treatment effect is poor.

In order to achieve the above object, there is provided a spray type exhaust gas discharge device comprising: the device comprises a shell, wherein a sealing cover is fixedly arranged on the inner side wall of the shell, the middle part of the sealing cover is hollow, a fixing plate is fixedly arranged on the middle part of the sealing cover, a liquid outlet frame is fixedly connected to the lower surface of the fixing plate and positioned in the middle part of the fixing plate, a guide frame is arranged on the lower side of the liquid outlet frame and is in a round table shape, the top wall and the bottom wall of the guide frame are both open, a guide cavity is arranged between the guide frame and the liquid outlet frame, a liquid outlet column is fixedly arranged on the lower surface of the guide frame and positioned in the middle part of the guide frame, a plurality of annular spray heads II are fixedly arranged on the outer side surface of the liquid outlet column, and the uppermost annular spray head is positioned in the guide cavity;

the fixed plate is characterized in that a plurality of air inlets are formed in the junction between the outer side wall of the fixed plate and the sealing cover, the outer side face of the guide frame is fixedly connected with the inner side wall of the sealing cover, a liquid outlet is formed in the junction between the outer side wall of the guide frame and the sealing cover, an annular spray head I is fixedly arranged on the outer side face of the liquid outlet frame, and the output end of the annular spray head I faces the inner side wall of the sealing cover.

According to the spray type exhaust emission device, the air inlets are circumferentially distributed.

According to the spray type waste gas discharge device, the liquid outlets are circumferentially distributed.

According to the spray type waste gas discharge device, a baffle is fixedly connected to the inner wall of each liquid outlet, and a plurality of liquid outlet holes for liquid to pass through are formed in the baffle.

According to the spray type waste gas discharge device, a liquid discharge pipe is fixedly arranged on the outer side wall of the shell and positioned at the lower end, and a valve is arranged on the liquid discharge pipe.

According to the spray type exhaust emission device, the outer side wall of the liquid outlet frame is fixedly connected with a liquid inlet pipe penetrating through the sealing cover and the side wall of the shell, and the liquid inlet pipe is communicated with the first annular spray head and the second annular spray head.

According to the spray type exhaust gas discharge device, the top wall of the shell is fixedly connected with an exhaust pipe.

According to the spray type waste gas discharge device, an air inlet pipe is fixedly arranged between the liquid discharge pipe and the liquid inlet pipe on the outer side wall of the shell.

The scheme has the beneficial effects that:

1. the intake pipe lets in waste gas in towards the casing, and waste gas loops through between leading truck, direction chamber and the play liquid frame and the sealed cowling, and the nitric acid in the annular shower nozzle is a pair of waste gas fully reacts simultaneously, and annular shower nozzle is second carries out secondary absorption to the waste gas that wafts from the direction chamber simultaneously for nitric acid in the waste gas is abundant with blowout aqueous ammonia contact, increases the treatment effect to waste gas.

2. The baffle is provided with ammonia water liquid, so that the guide cavity is not communicated with the lower side of the guide frame, the treated waste gas and the untreated waste gas are separated from each other, and the absorbed ammonia water is convenient to flow to the bottom wall of the shell.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described below with reference to the drawings and examples;

FIG. 1 is a block diagram of a spray exhaust emission apparatus according to the present utility model;

FIG. 2 is a cross-sectional view of a spray exhaust emission device of the present utility model;

fig. 3 is a structural view of a guide frame in a spray type exhaust gas discharge apparatus according to the present utility model.

Legend description:

1. a liquid discharge pipe; 2. a housing; 3. an exhaust pipe; 4. a liquid inlet pipe; 5. a fixing plate; 6. a liquid outlet frame; 7. an annular spray head I; 8. a guide frame; 9. a liquid discharge column; 10. annular spray heads II; 11. an air inlet; 12. a liquid outlet; 13. a baffle; 14. a liquid outlet hole; 15. a guide chamber; 16. an air inlet pipe; 17. and (5) sealing the cover.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

Referring to fig. 1 to 3, an embodiment of the present utility model is a spray type exhaust gas discharge apparatus, comprising: the shell 2, the inside wall fixed mounting of casing 2 has sealed cowling 17, sealed cowling 17's middle part cavity, and fixed mounting has fixed plate 5, the lower surface of fixed plate 5 just is located middle part fixedly connected with and goes out liquid frame 6, go out liquid frame 6's downside and be provided with leading truck 8, leading truck 8 is round platform shape, roof and diapire of leading truck 8 are all open, be provided with the guide chamber 15 between leading truck 8 and the liquid frame 6, the lower surface of leading truck 8 just is located middle part fixed mounting and has liquid column 9, the lateral surface fixed mounting of liquid column 9 has a plurality of annular shower nozzles two 10, the annular shower nozzle two 10 of the top is located the inside of guide chamber 15, a plurality of annular shower nozzles two 10 are annular to leading truck 8 lower extreme and spray aqueous ammonia, make the aqueous ammonia that sprays take place the metathesis reaction with nitric acid, thereby absorb waste gas, simultaneously, the annular shower two 10 of the inner wall of guide chamber 15 of the most, because nitric acid evaporates very easily, in the air, nitric acid in the waste gas slowly gets into guide chamber 15 through the lower extreme of leading truck 8, because waste gas waft, and stop at the annular shower nozzle one of the most side 7, make the exhaust gas and make and the exhaust gas remove fully from the guide chamber 17 through the sealed cowling between the exhaust gas, make the exhaust gas and the extrusion reaction slowly.

The air inlet 11 is circumferentially distributed at the juncture of the outer side wall of the fixed plate 5 and the sealing cover 17, the air inlet 11 is used for exhausting the exhaust gas after the ammonia water is fully absorbed, the outer side face of the guide frame 8 is fixedly connected with the inner side wall of the sealing cover 17, the liquid outlet 12 is circumferentially distributed at the juncture of the outer side wall of the guide frame 8 and the sealing cover 17, the baffle 13 is fixedly connected with the inner wall of each liquid outlet 12, a plurality of liquid outlet holes 14 for liquid to pass through are formed in the baffle 13, the liquid outlet 12 is used for exhausting the ammonia water to the bottom end of the shell 2, meanwhile, the aperture of the liquid outlet holes 14 is small, and when the ammonia water flows from the liquid outlet holes 14 to the bottom end of the shell 2, the ammonia water is reserved on the upper side of the baffle 13, so that the exhaust gas on the lower side of the guide frame 8 can not directly drift towards the air inlet 11 through the liquid outlet holes 14.

The outer side surface of the liquid outlet frame 6 is fixedly provided with an annular spray head I7, the output end of the annular spray head I7 faces the inner side wall of the sealing cover 17, the outer side wall of the shell 2 is fixedly provided with a liquid discharge pipe 1 at the lower end, a valve is arranged on the liquid discharge pipe 1, the liquid discharge pipe 1 is used for discharging nitric acid-absorbing ammonia water at the bottom end of the shell 2, the outer side wall of the liquid outlet frame 6 is fixedly connected with a liquid inlet pipe 4 penetrating through the sealing cover 17 and the side wall of the shell 2, the liquid inlet pipe 4 is mutually communicated with the annular spray head I7 and the annular spray head II 10, the ammonia water is fed into the annular spray head I7 and the annular spray head II 10 through the liquid inlet pipe 4, the top wall of the shell 2 is fixedly connected with an exhaust pipe 3, the exhaust pipe 3 is used for discharging nitric acid-absorbing waste gas in the waste gas, an air inlet pipe 16 is fixedly arranged between the outer side wall of the shell 2 and the liquid discharge pipe 1 and the liquid inlet pipe 4, and the waste gas is filled into the shell 2 through the air inlet pipe 16 towards the shell 2, and the guide frame 8, the guide cavity 15 and the liquid outlet frame 6 and the sealing cover 17 are sequentially arranged.

The annular spray head can adopt a steel multi-head round atomizing spray head, belongs to the prior art, and is not repeated here.

Working principle: during the use, through letting in aqueous ammonia in the feed liquor pipe 4, thereby drive annular shower nozzle 7 and annular shower nozzle 10 blowout vaporific aqueous ammonia, intake pipe 16 lets in waste gas towards casing 2 in, waste gas loops through guide frame 8, guide chamber 15 and go out between liquid frame 6 and the sealed cowling 17, annular shower nozzle 7 fully reacts to the nitric acid in the waste gas simultaneously, annular shower nozzle 10 carries out secondary absorption to the waste gas that wafts from guide chamber 15 simultaneously, make the nitric acid in the waste gas fully with blowout aqueous ammonia contact, increase the treatment effect to the waste gas, leave aqueous ammonia liquid on baffle 13, make guide chamber 15 and guide frame 8's downside can not communicate each other, thereby separate the waste gas after handling and untreated waste gas each other, the while is convenient for flow towards the diapire of casing 2 with the aqueous ammonia after absorbing, the waste gas after handling moves towards blast pipe 3 through air inlet 11, until blast pipe 3 discharges the waste gas after handling.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. A spray exhaust emission device, comprising: the novel water-saving type water-saving device is characterized in that a sealing cover (17) is fixedly arranged on the inner side wall of the casing (2), the middle part of the sealing cover (17) is hollow, a fixing plate (5) is fixedly arranged on the middle part of the sealing cover, a liquid outlet frame (6) is fixedly connected to the lower surface of the fixing plate (5) and positioned in the middle part of the sealing cover, a guide frame (8) is arranged on the lower side of the liquid outlet frame (6), the guide frame (8) is in a round table shape, the top wall and the bottom wall of the guide frame (8) are both open, a guide cavity (15) is arranged between the guide frame (8) and the liquid outlet frame (6), a liquid discharging column (9) is fixedly arranged on the lower surface and positioned in the middle part of the guide frame (8), a plurality of annular spray heads II (10) are fixedly arranged on the outer side surfaces of the liquid discharging column (9), and the uppermost annular spray heads II (10) are positioned in the guide cavity (15).

The utility model discloses a sealing cover, including fixed plate (5), sealing cover (17), guide frame (8), liquid outlet (12) have been seted up to the juncture of fixed plate (5) lateral wall and with sealing cover (17), the lateral surface of guide frame (8) and sealing cover (17) inside wall fixed connection, liquid outlet frame (6) lateral surface fixed mounting has annular shower nozzle one (7), the output of annular shower nozzle one (7) is towards sealing cover (17) inside wall.

2. The spray exhaust gas discharge device according to claim 1, characterized in that the gas inlets (11) are circumferentially distributed.

3. The spray exhaust gas discharge device according to claim 2, characterized in that the liquid outlets (12) are circumferentially distributed.

4. A spray-type exhaust gas discharge device according to claim 3, wherein a baffle plate (13) is fixedly connected to the inner wall of each liquid outlet (12), and a plurality of liquid outlet holes (14) for passing liquid are formed in the baffle plate (13).

5. The spray-type exhaust gas discharge device according to claim 1, wherein a liquid discharge pipe (1) is fixedly arranged on the outer side wall and the lower end of the shell (2), and a valve is arranged on the liquid discharge pipe (1).

6. The spray-type exhaust gas discharge device according to claim 5, wherein the outer side wall of the liquid outlet frame (6) is fixedly connected with a liquid inlet pipe (4) penetrating through the sealing cover (17) and the side wall of the shell (2), and the liquid inlet pipe (4) is mutually communicated with the annular spray head I (7) and the annular spray head II (10).

7. The spray-type exhaust gas discharge device according to claim 6, wherein the top wall of the housing (2) is fixedly connected with an exhaust pipe (3).

8. The spray-type exhaust gas discharge device according to claim 7, wherein an air inlet pipe (16) is fixedly arranged between the liquid discharge pipe (1) and the liquid inlet pipe (4) on the outer side wall of the shell (2).