CN217909738U

CN217909738U - Desulfurization and denitrification exhaust treatment device

Info

Publication number: CN217909738U
Application number: CN202220845737.3U
Authority: CN
Inventors: 万为志
Original assignee: Jiangsu Weizhi Environmental Protection Technology Co ltd
Current assignee: Jiangsu Weizhi Environmental Protection Technology Co ltd
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2022-11-29
Anticipated expiration: 2032-04-13

Abstract

The utility model relates to a SOx/NOx control exhaust treatment device, reaction vessel's inside is equipped with the cylinder chamber, reaction vessel's top and bottom are provided with gas outlet and air inlet respectively, reaction vessel's inside is provided with the pivoted cylinder, the outer wall fixed mounting of cylinder has helical blade, and helical blade pastes tightly on the inner wall in cylinder chamber, the inside of cylinder is provided with the stock solution chamber, simultaneously the footpath of cylinder radially installs a plurality of nozzle, the top fixedly connected with impeller of cylinder, the impeller is provided with the dustcoat outward, the intercommunication has the pipe fitting between dustcoat and the gas outlet, be provided with the gas vent on the dustcoat, the top and the impeller of cylinder are provided with coaxial feed liquor structure jointly, utilize the gas drive impeller of outflow to drive helical blade antiport, increase the friction between helical blade surface and the gas, slow down gas flow, thereby increase the reaction time of waste gas and nozzle spun solution, improve the reaction rate of waste gas by a wide margin.

Description

Desulfurization and denitrification exhaust treatment device

Technical Field

The utility model relates to a processing apparatus especially relates to a SOx/NOx control exhaust treatment device, belongs to exhaust-gas treatment technical field.

Background

Flue gas discharged by industrial coal-fired boilers and the like in the production and use processes is one of the main sources of sulfur dioxide and nitrogen oxide at present, so that the environment is seriously polluted and becomes the main cause of air pollution, and therefore, the desulfurization, denitration, purification and treatment of the flue gas are very important, and particularly, along with the strictness of the control standards of the nitrogen oxide and the sulfur dioxide, the desulfurization, denitration and dust removal technologies are increasingly paid attention from various aspects.

The SO2, SO3 and NO2 in the waste gas are absorbed by the existing desulfurization and denitrification integrated device generally by adopting an alkaline solution (such as a NaOH solution), and on one hand, if the waste gas is directly introduced into an alkaline solution pool, the reaction contact area of the waste gas and the alkaline solution is small, the reaction is insufficient, and the SO2, SO3 and NO2 are not completely absorbed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the aforesaid not enough, provide a SOx/NOx control exhaust treatment device to solve the ordinary SOx/NOx control integrated device that proposes in the above-mentioned background art and can't react waste gas and solution more fully, thereby lead to the unable problem that satisfies the emission requirement of combustion gas.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a SOx/NOx control exhaust treatment device, includes reaction vessel, reaction vessel's inside is equipped with the cylinder chamber, and reaction vessel's top is equipped with the round mouth, reaction vessel's top and bottom are provided with gas outlet and air inlet respectively, reaction vessel's inside is provided with the pivoted cylinder, and the cylinder upwards wears out the round mouth, the outer wall fixed mounting of cylinder has helical blade, and helical blade pastes tightly on the inner wall in cylinder chamber, the inside of cylinder is provided with the stock solution chamber, and the radial nozzle of installing a plurality of and stock solution chamber intercommunication of cylinder simultaneously, the top fixedly connected with impeller of cylinder, and impeller rotation direction is opposite with helical blade's spiral direction, the impeller is provided with the dustcoat outward, the intercommunication has the pipe fitting between dustcoat and the gas outlet, be provided with the gas vent on the dustcoat, the top of cylinder and impeller are provided with coaxial feed liquor structure jointly.

Preferably, the plurality of nozzles are distributed helically in the path of a helical blade, with at least two nozzles being provided between each pitch.

Preferably, the inner bottom surface of the reaction vessel is provided with a groove, and the groove is in running fit with the bottom end of the column body.

Preferably, three support legs are fixedly mounted on the outer bottom surface of the reaction vessel, and the support legs are outwardly spread.

Preferably, the pipe fitting includes the tubule with dustcoat fixed connection, tubule flange joint thick pipe, and thick flange joint is on the gas outlet.

Preferably, the liquid inlet structure includes that the cylinder and the impeller are provided with the feed liquor hole on, the downthehole normal running fit of feed liquor has the feed liquor pipe, the outer wall of feed liquor pipe has cup jointed O type circle.

Preferably, the top surface of the outer cover is fixedly provided with a bearing with a seat, and the bearing with the seat is fixedly sleeved with the top of the cylinder.

Preferably, the outer wall of the top of the cylinder is tightly sleeved with a rubber ring with an extrusion round opening.

The utility model provides a possess following beneficial effect:

the utility model discloses a set up installation helical blade's cylinder in reaction vessel, install impeller and nozzle on the cylinder for waste gas radially flows with the spiral way, utilizes the gas drive impeller of outflow to drive helical blade antiport simultaneously, and the friction between increase helical blade surface and the gas slows down gas flow, thereby increases the reaction time of waste gas and nozzle spun solution, improves the reaction rate of waste gas by a wide margin.

Simultaneously, through installing the pipe fitting between gas outlet and dustcoat, this pipe fitting comprises tubule and thick pipe simultaneously, reduces the pipe diameter, increases the pipe wall to the pressure of gas, reaches the purpose of accelerating the gas flow rate, and then improves the gas flow power, can drive the impeller rotation better to provide stronger revolving force.

Drawings

Fig. 1 is a schematic external structural view of the present invention;

fig. 2 is a schematic sectional structure of the present invention;

FIG. 3 is a schematic view of the impeller structure of the present invention;

fig. 4 is an enlarged schematic structural view of a point a in fig. 2 according to the present invention;

in the figure: 1. a reaction vessel; 2. a cylindrical cavity; 3. a round mouth; 4. an air outlet; 5. an air inlet; 6. a cylinder; 7. a helical blade; 8. a liquid storage cavity; 9. a nozzle; 10. an impeller; 11. a housing; 12. a pipe fitting; 121. a thin tube; 122. a thick pipe; 13. an exhaust port; 14. a liquid inlet structure; 141. a liquid inlet hole; 142. a liquid inlet pipe; 15. a groove; 16. a support leg; 17. a bearing with a seat.

Detailed Description

Referring to fig. 1 to 3, the desulfurization and denitrification exhaust gas treatment device of the present invention comprises a reaction vessel 1 having a round mouth 3 at the top, three support legs 16 mounted at the bottom of the reaction vessel 1, and the reaction vessel 1 can be stabilized by the support legs 16; the cylindrical cavity 2 is arranged in the reaction container 1, the gas outlet 4 and the gas inlet 5 are respectively arranged at the top end and the bottom end of the reaction container 1, and the gas outlet 4 and the gas inlet 5 have height difference, so that waste gas can flow upwards after entering from the gas inlet 5 and finally flows out of the gas outlet 4, the flow stroke of the waste gas is increased, and the reaction time is prolonged;

in this embodiment, as shown in fig. 2, a rotating cylinder 6 is coaxially disposed inside the cylindrical cavity 2, a groove 15 rotationally engaged with the cylinder 6 is disposed at the inner bottom of the reaction vessel 1, the top of the cylinder 6 is allowed to upwardly penetrate the circular opening 3, and a bearing 17 with a seat sleeved on the cylinder 6 is disposed at the top of the reaction vessel 1, so as to reduce the rotating friction force and improve the transmission efficiency; in order to enhance the sealing property, a rubber ring is sleeved on the outer wall of the joint of the cylinder 6 and the round opening 3; the spiral blade 7 is fixedly installed on the outer wall of the cylinder 6, the side face of the spiral blade 7 is attached to the inner wall of the cylinder cavity 2, in order to increase the sealing performance, a rubber strip is fixed on the side face of the spiral blade 7, gas cannot flow upwards from the side edge through the rubber strip, and waste gas can only flow along a spiral path after entering the spiral blade, so that the flow stroke of the waste gas is further increased; in order to match the reaction of the waste gas and the solution, a liquid storage cavity 8 is arranged in the cylinder 6, a plurality of nozzles 9 communicated with the liquid storage cavity 8 are arranged in the radial direction of the cylinder 6, the plurality of nozzles 9 are distributed in a spiral way along the path of the spiral blade 7, and at least two nozzles 9 are arranged between each screw pitch to increase the solution injection amount between the screw pitches;

in this embodiment, as shown in fig. 4, an impeller 10 is fixedly connected to the top end of the column 6, the rotation direction of the impeller 10 is set to be opposite to the spiral direction of the spiral blade 7, and a housing 11 fixed to the reaction vessel 1 is provided outside the impeller 10; a pipe fitting 12 is communicated between the outer cover 11 and the gas outlet 4, a gas outlet 13 is arranged on the outer cover 11, after the gas is discharged from the gas outlet 4, the gas is blown to the impeller 10 through the pipe fitting 12, so that the impeller 10 starts to rotate and drives the column 6 and the helical blade 7 to simultaneously rotate, and because the rotating direction of the helical blade 7 is opposite to the flowing direction of the waste gas, the waste gas and the outer surface of the helical blade 7 generate friction at the moment, so that the flow velocity of the waste gas is reduced, and the reaction time of the waste gas and the solution is prolonged;

in addition, pipe fitting 12 includes tubule 121 with dustcoat 11 fixed connection, and tubule 121 flange joint thick pipe 122, and thick pipe 122 flange joint is on gas outlet 4, and the pipe diameter is changing from big to small, can increase the pipe wall to the pressure of gas, reaches the purpose of accelerating the gas flow rate, and then increase gas flow power, can drive impeller 10 better and rotate to provide stronger revolving force.

As shown in fig. 4, in order to transport the solution into the solution storage cavity 8, a coaxial liquid inlet structure 14 is disposed on both the top of the cylinder 6 and the impeller 10, the liquid inlet structure 14 includes a liquid inlet hole 141 disposed on the cylinder 6 and the impeller 10, a liquid inlet pipe 142 is disposed in the liquid inlet hole 141, an O-ring is sleeved on an outer wall of the liquid inlet pipe 142 to increase sealing performance, an outer end of the liquid inlet pipe 142 is connected to a booster pump and a solution tank, which are not shown in the figure, and the solution is continuously transported into the solution storage cavity 8 by the booster pump.

In addition, centrifugal force is generated in the rotation process of the column body 6, the solution can be thrown to the nozzle 9, the spraying speed of the nozzle 9 can be further increased, the amount of the solution sprayed in unit time is increased, and the reaction rate is increased.

The utility model provides a SOx/NOx control exhaust treatment device, concrete theory of operation as follows: waste gas gets into from air inlet 5, can promote the inside air of reaction vessel 1 to flow to dustcoat 11 in through pipe fitting 12, final drive impeller 10 drives cylinder 6 and helical blade 7 and rotates, when waste gas flows along the spiral route, helical blade 7's counter rotation has increased the friction between helical blade 7 surface and the gas, slow down gas flow, thereby increase the reaction time of waste gas and nozzle 9 spun solution, improve the reaction rate of waste gas by a wide margin, the solution of stock solution 8 inside constantly from nozzle 9 radial injection, the realization is reacted with waste gas.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a SOx/NOx control exhaust treatment device, includes reaction vessel (1), its characterized in that: the reaction device is characterized in that a cylindrical cavity (2) is arranged inside the reaction container (1), a round opening (3) is formed in the top end of the reaction container (1), an air outlet (4) and an air inlet (5) are respectively formed in the top end and the bottom end of the reaction container (1), a rotating cylinder (6) is arranged inside the reaction container (1), the cylinder (6) penetrates out of the round opening (3) upwards, a spiral blade (7) is fixedly mounted on the outer wall of the cylinder (6), the spiral blade (7) is tightly attached to the inner wall of the cylindrical cavity (2), a liquid storage cavity (8) is formed inside the cylinder (6), a plurality of nozzles (9) communicated with the liquid storage cavity (8) are radially mounted on the cylinder (6), an impeller (10) is fixedly connected to the top end of the cylinder (6), the rotation direction of the impeller (10) is opposite to the spiral direction of the spiral blade (7), an outer cover (11) is arranged outside the impeller (10), a pipe fitting (12) is communicated between the outer cover (11) and the air outlet (4), and an air outlet (13) is arranged on the outer cover (11), and a liquid inlet structure and a coaxial cylinder (14) and a liquid inlet structure are arranged on the top of the cylinder (6).

2. The desulfurization and denitrification exhaust gas treatment device according to claim 1, wherein: the plurality of nozzles (9) are distributed helically in the path of the helical blade (7), with at least two nozzles (9) being arranged between each pitch.

3. The desulfurization and denitrification exhaust gas treatment device according to claim 1, wherein: the inner bottom surface of the reaction container (1) is provided with a groove (15), and the groove (15) is in running fit with the bottom end of the column body (6).

4. The desulfurization and denitrification exhaust gas treatment device according to claim 3, wherein: the outer bottom surface of reaction vessel (1) is fixedly mounted with three support legs (16), and support legs (16) are outwards propped open.

5. The desulfurization and denitrification exhaust gas treatment device according to claim 1, wherein: pipe fitting (12) including with dustcoat (11) fixed connection's tubule (121), tubule (121) flange joint thick pipe (122), and thick pipe (122) flange joint is on gas outlet (4).

6. The desulfurization and denitrification exhaust gas treatment device according to claim 1, wherein: liquid inlet structure (14) are provided with feed liquor hole (141) including on cylinder (6) and impeller (10), feed liquor hole (141) internal rotation has feed liquor pipe (142), the outer wall of feed liquor pipe (142) is gone up to cup joint O type circle.

7. The desulfurization and denitrification exhaust gas treatment device according to claim 1, wherein: the top surface fixed mounting of dustcoat (11) has rolling bearing (17), and rolling bearing (17) and the fixed cup joint in top of cylinder (6).

8. The desulfurization and denitrification exhaust gas treatment device according to claim 1, wherein: the outer wall of the top of the cylinder (6) is tightly sleeved with a rubber ring for extruding the round opening (3).