CN213790868U

CN213790868U - Treatment device for flue gas desulfurization and denitrification

Info

Publication number: CN213790868U
Application number: CN202021714483.9U
Authority: CN
Inventors: 陈珊珊
Original assignee: Individual
Current assignee: Shenyang Shanyouxin Environmental Protection Technology Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-07-27
Anticipated expiration: 2030-08-17

Abstract

The utility model discloses a processing apparatus for flue gas desulfurization and denitration, including denitration and desulfurization chamber, weak base gas washing chamber, defogging chamber, exhaust pipe fan, the inside smoke guide device that is equipped with of denitration and desulfurization chamber, the bottom surface slope and the horizontal projection of smoke guide device coincide with the flue gas input port, the inside of denitration and desulfurization chamber still is equipped with the gas washing unit, the gas washing unit includes rib structure's spray frame and sets up the stirring cigarette flabellum between the spray frame, evenly be equipped with the shower head on the spray frame, the shower head is installed on the spray frame in 45 degrees slopes; compare in traditional flue gas desulfurization and denitration device, this embodiment is through piling up each treatment chamber and connecting, and the space that has reduced the device occupies, simultaneously, leads the setting of cigarette device for the flue gas can be in desulfurization and denitration room even distribution, moreover, the shower head through the slope with stir the cooperation of cigarette flabellum and use, it is more abundant with the liquid medicine mixture that sprays to let the flue gas, improved the SOx/NOx control efficiency of device to the flue gas greatly.

Description

Treatment device for flue gas desulfurization and denitrification

Technical Field

The utility model relates to a waste gas treatment field specifically is a processing apparatus for flue gas desulfurization denitration.

Background

A processing apparatus for flue gas desulfurization denitration among the prior art is very huge more, the device components of a whole that can function independently that is used for different processing procedure sets up the area of installation greatly increased the device, huge processing apparatus is very unfriendly to miniature mill, and simultaneously, flue gas desulfurization denitration's among the prior art processing apparatus uses the fan more and directly blows in the device with the flue gas, make the inhomogeneous and flue gas mobility of distribution of flue gas in the device poor, it is inhomogeneous finally to cause flue gas and the liquid medicine that sprays to mix, the efficiency of desulfurization denitration is discounted greatly, how to make the flue gas get into can be even distribution behind the processing apparatus inside the device and can have good mobility, be the important improvement point that promotes processing apparatus desulfurization denitration efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a processing apparatus for flue gas desulfurization denitration to solve the problem that proposes in the above-mentioned background art.

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

a treatment device for flue gas desulfurization and denitrification comprises a desulfurization and denitrification chamber, a weak base gas washing chamber, a demisting chamber and a smoke exhaust pipe fan, wherein a flue gas inlet is formed in the middle lower part of the desulfurization and denitrification chamber, the flue gas inlet is connected with the fan, a smoke guide device is arranged on the same horizontal plane corresponding to the flue gas inlet in the desulfurization and denitrification chamber, the bottom surface of the smoke guide device is inclined, the horizontal projection of the smoke guide device coincides with the flue gas inlet, a smoke guide grid is arranged on the smoke guide device, a gas washing device is further arranged in the desulfurization and denitrification chamber and is arranged right above the smoke guide device, the gas washing device comprises a plurality of spraying frames of rib structures distributed at intervals and smoke stirring fan blades arranged between the spraying frames, the tail end of the top of each spraying frame is connected with scrubbing alkali liquor, spraying heads are uniformly arranged on the spraying frames, and are obliquely arranged on the spraying frames at 45 degrees, the desulfurization and denitrification chamber further comprises a waste liquid pool arranged below the smoke guide device, the weak base air washing chamber is arranged above the desulfurization and denitrification chamber, a demisting chamber is further arranged above the weak base air washing chamber, the demisting chamber is connected with the weak base air washing chamber through an opening in the bottom, and the demisting chamber is further connected with a smoke exhaust pipe arranged above the demisting chamber.

As a further aspect of the present invention: the weak alkali gas washing chamber comprises a weak alkali gas washing pool arranged at the bottom, the middle part of the weak alkali gas washing pool is provided with a gas guide pipeline connected with the desulfurization and denitrification chamber, the tail end of the gas guide pipeline is immersed in the weak alkali gas washing pool and is provided with gas washing gas outlet holes which are uniformly distributed, and the weak alkali gas washing chamber further comprises a weak alkali filling opening arranged at the upper part of the side wall.

As a further aspect of the present invention: the demisting chamber comprises a clean water spraying device arranged at the top, the clean water spraying device is connected with a clean water injection port, a demister is arranged under the clean water spraying device, and a wastewater pool is arranged under the demister.

As a further aspect of the present invention: the device is characterized by further comprising an alkali liquor tank, wherein the alkali liquor tank is connected with a washing gas alkali liquor injection opening of the desulfurization and denitrification chamber through a pipeline, the alkali liquor tank comprises a liquid storage chamber and a liquid extracting pump arranged below the liquid storage chamber, and the liquid extracting pump is connected with the pipeline.

As a further aspect of the present invention: the bottom of the waste liquid pool is provided with a waste liquid recovery port, the bottom of the weak alkali washing gas pool is provided with a weak alkali waste liquid recovery port, and the bottom of the waste water pool is provided with a clean waste water recovery port.

Compared with the prior art, the beneficial effects of the utility model are that: compare in traditional flue gas desulfurization and denitration device, this embodiment is through piling up each treatment chamber and connecting, and the space that has reduced the device occupies, simultaneously, leads the setting of cigarette device for the flue gas can be in desulfurization and denitration room even distribution, moreover, the shower head through the slope with stir the cooperation of cigarette flabellum and use, increased the flue gas and sprayed abundant even contact and the mixture of mixing the liquid medicine, make the device to the desulfurization and denitration efficiency of flue gas obtain improving greatly.

Drawings

FIG. 1 is a schematic structural diagram of a treatment device for desulfurization and denitrification of flue gas.

FIG. 2 is a schematic structural diagram of a gas washing device in a treatment device for desulfurization and denitrification of flue gas.

FIG. 3 is a schematic structural diagram of a smoke guiding device in a flue gas desulfurization and denitrification treatment device.

In the figure: 1-a desulfurization and denitrification chamber, 11-a smoke guide device, 111-a smoke guide grid, 12-a gas washing device, 121-a spray frame, 1211-a spray head, 122-smoke stirring fan blades, 13-a gas washing alkali liquid injection port, 14-a waste liquid tank, 15-a smoke gas input port, 16-a waste liquid recovery port, 2-a weak base gas washing chamber, 21-a weak base gas washing tank, 22-an air guide pipeline, 221-a gas washing gas outlet hole, 23-a weak base injection port, 24-a weak base waste liquid recovery port, 3-a demisting chamber, 31-a demister, 32-a clean water spraying device, 33-a waste water tank, 34-a clean water injection port, 35-a clean waste water recovery port, 4-a smoke exhaust pipe, 5-an alkali liquid storage chamber, 51-a liquid storage chamber, 52-a liquid extraction pump, 53-a pipeline liquid tank, 53-a liquid tank, 6-a fan.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Referring to fig. 1 to 3, in an embodiment of the present invention, a processing apparatus for flue gas desulfurization and denitration includes a desulfurization and denitration chamber 1, a weak base gas washing chamber 2, a defogging chamber 3, a smoke exhaust pipe 4 and a fan 6, a flue gas input port 15 is disposed at a middle lower portion of the desulfurization and denitration chamber 1, the flue gas input port 15 is connected with the fan 6, a smoke guide device 11 is disposed on a same horizontal plane corresponding to the flue gas input port 15 inside the desulfurization and denitration chamber 1, a bottom surface of the smoke guide device 11 is inclined and a horizontal projection of the smoke guide device coincides with the flue gas input port 15, a smoke guide grid 111 is disposed on the smoke guide device 11, a gas washing device 12 is further disposed inside the desulfurization and denitration chamber 1, the gas washing device 12 is disposed directly above the smoke guide device 11, the gas washing device 12 includes a plurality of spraying frames 121 having rib structures distributed at intervals and a smoke stirring frame 122 disposed between the spraying frames 121, the tail end of the top of the spray frame 121 is connected with a washing gas alkali liquor injection port 13, spray heads 1211 are uniformly arranged on the spray frame 121, the spray heads 1211 are obliquely arranged on the spray frame 121 at an angle of 45 degrees, the desulfurization and denitrification chamber 1 further comprises a waste liquor pool 14 arranged below the smoke guide device 11, the weak base washing gas chamber 2 is arranged above the desulfurization and denitrification chamber 1, a defogging chamber 3 is further arranged above the weak base washing gas chamber 2, the defogging chamber 3 is connected with the weak base washing gas chamber 2 through a bottom opening, and the defogging chamber 3 is further connected with a smoke exhaust pipe 4 arranged above.

In the embodiment, the desulfurization and denitrification chamber 1, the weak base scrubbing chamber 2, the demisting chamber 3 and the smoke exhaust pipe 4 are sequentially stacked and distributed from bottom to top, so that the floor area of the device is greatly reduced, meanwhile, smoke subjected to primary treatment is not introduced into other devices for treatment again in pipelines needing too many pipelines, and device faults, leakage and the like which may occur when the pipelines are too many are reduced; the smoke guide device 11 is arranged at the position corresponding to the smoke inlet 15 in the desulfurization and denitrification chamber 1, the smoke guide device 11 is of a grid structure, an arc-shaped oblique plane is arranged below the smoke guide device 11, the oblique plane is opposite to the smoke inlet 15, smoke guide grids 111 with gradually reduced height are uniformly distributed on the oblique plane, when the fan 6 blows smoke into the desulfurization and denitrification chamber 1 through the smoke inlet 15, a smoke cylindrical surface is uniformly divided into a plurality of small flat cylindrical surfaces by the smoke guide grids on the oblique plane of the smoke guide device 11 and floats upwards, the smoke floating upwards in the desulfurization and denitrification chamber 1 is sprayed and cleaned by a spray head 1211 on the gas washing device 12 above, meanwhile, because the spray head is obliquely arranged at an angle of 45 degrees, air can be obliquely stirred when spraying medicine, the smoke forms vortex in the desulfurization and denitrification chamber 1, the smoke is slowed down to float upwards, and the smoke is in contact with the sprayed medicine more fully, moreover, the middle of the spray frame is also provided with a smoke stirring fan blade 122, the blade inclination angle of the smoke stirring fan blade is vertical to the spray head 1211, when in use, the inclined spray head can push the smoke stirring fan blade 122 to rotate when spraying, thereby increasing the stirring degree of the flue gas, the bottom of the desulfurization and denitrification chamber 1 is also provided with a waste liquid pool 14 for gathering waste liquid generated after the flue gas is sprayed, so as to facilitate the later recovery and regeneration of the waste liquid, compared with the traditional flue gas desulfurization and denitrification device, the embodiment reduces the space occupation of the device by stacking and connecting the treatment chambers, simultaneously, lead the setting of cigarette device 11 for the flue gas can be in SOx/NOx control room even distribution, the shower head 121 of rethread slope is used with the cooperation that stirs cigarette flabellum 122, has increased the abundant even contact and the mixture of flue gas with the medicine that sprays, makes the SOx/NOx control efficiency of device to the flue gas improve greatly.

Referring to fig. 1, as a preferred embodiment of the present invention, the weak alkali gas washing chamber 2 includes a weak alkali gas washing tank 21 disposed at the bottom, a gas guide pipe 22 disposed in the middle of the weak alkali gas washing tank 21 and connected to the desulfurization and denitrification chamber 1, the end of the gas guide pipe 22 is immersed in the weak alkali gas washing tank 21 and is provided with gas washing air outlets 221 uniformly distributed, and the weak alkali gas washing chamber 2 further includes a weak alkali injection port 23 disposed at the upper portion of the sidewall.

In this embodiment, the weak base gas washing chamber 2 is used for washing and filtering the flue gas again, and the weak base gas washing chamber washes the flue gas by blowing the flue gas into the solution, so that a weak base gas washing tank 21 is provided and connected to the desulfurization and denitrification chamber 1 through a gas guide pipeline 22 submerged at the bottom of the weak base gas washing tank 21, and a weak base injection port 23 is used for injecting a clean solution into the weak base gas washing chamber.

Referring to fig. 1, as another preferred embodiment of the present invention, the mist removing chamber 3 includes a clean water spraying device 32 disposed at the top, the clean water spraying device 32 is connected to a clean water inlet 34, a mist eliminator 31 is disposed directly below the clean water spraying device 32, and a waste water tank 33 is disposed directly below the mist eliminator 31.

In this embodiment, defogging chamber 3's setting is for carrying out defogging processing to the flue gas after the SOx/NOx control, detach wherein mixed sulphate, pollutants such as sulfur dioxide, and it becomes secondary pollution to prevent to shine after the fume emission, and clean spray set 32 sprays the pure water to defroster 31 regularly and cleans, detaches adnexed pollutant on the defroster 31.

Referring to fig. 1, as another preferred embodiment of the present invention, the present invention further comprises an alkaline solution tank 5, wherein the alkaline solution tank 5 is connected to the washing gas and alkaline solution injection port 13 of the desulfurization and denitrification chamber 1 through a pipeline 53, the alkaline solution tank 5 comprises a liquid storage chamber 51 and a liquid extracting pump 52 disposed below the liquid storage chamber 51, and the liquid extracting pump 52 is connected to the pipeline 53.

In this embodiment, the lye tank 5 is used for continuously providing fresh mixed liquor with sufficient pressure into the desulfurization and denitrification chamber, and the lye tank 5 comprises a liquor storage chamber 51 and a liquor extraction pump 52 for delivering the mixed liquor to the desulfurization and denitrification chamber 1 under a certain pressure.

Referring to fig. 1, as another preferred embodiment of the present invention, a waste liquid recovery port 16 is disposed at the bottom of the waste liquid tank 14, a weak alkali waste liquid recovery port 24 is disposed at the bottom of the weak alkali gas washing tank 21, and a cleaning waste water recovery port 35 is disposed at the bottom of the waste water tank 33.

In this embodiment, the bottom of the waste liquid tank 14 is provided with a waste liquid recovery port 16, the bottom of the weak alkaline air washing tank 21 is provided with a weak alkaline waste liquid recovery port 24, and the bottom of the waste water tank 33 is provided with a clean waste water recovery port 35, so as to recover and treat waste liquid generated in the process, reduce waste of resources, and avoid secondary pollution caused by random emission.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. The utility model provides a processing apparatus for flue gas desulfurization denitration, includes SOx/NOx control room (1), weak base gas washing chamber (2), defogging room (3), discharges fume tub (4) and fan (6), its characterized in that, the well lower part of SOx/NOx control room (1) is equipped with flue gas input port (15), flue gas input port (15) are connected with fan (6), be equipped with on the same horizontal plane that SOx/NOx control room (1) inside corresponds flue gas input port (15) and lead fume device (11), the bottom surface slope and the horizontal projection of leading fume device (11) and flue gas input port (15) coincidence, be equipped with on leading fume device (11) and lead cigarette net (111), the inside of SOx/NOx control room (1) still is equipped with scrubbing device (12), scrubbing device (12) set up directly over leading fume device (11), scrubbing device (12) spray frame (121) and set up spraying between frame (121) including the rib structure of a plurality of interval distribution with set up and spray frame (121) Stir cigarette flabellum (122), the top end connection scrubbing alkali lye filling opening (13) of spraying frame (121), evenly be equipped with shower head (1211) on spraying frame (121), shower head (1211) are 45 degrees slopes to be installed on spraying frame (121), SOx/NOx control room (1) is still including setting up waste liquid pond (14) in leading cigarette device (11) below, light alkali scrubbing chamber (2) set up in the top of SOx/NOx control room (1), the top of light alkali scrubbing chamber (2) still is equipped with except that fog room (3), except that fog room (3) are connected with light alkali scrubbing chamber (2) through bottom trompil, except that fog room (3) still with set up above smoke exhaust pipe (4) be connected.

2. The treatment device for desulfurization and denitrification of flue gas according to claim 1, wherein the weak alkali gas washing chamber (2) comprises a weak alkali gas washing tank (21) arranged at the bottom, the middle part of the weak alkali gas washing tank (21) is provided with an air guide pipeline (22) connected with the desulfurization and denitrification chamber (1), the tail end of the air guide pipeline (22) is immersed in the weak alkali gas washing tank (21) and is provided with uniformly distributed gas washing outlet holes (221), and the weak alkali gas washing chamber (2) further comprises a weak alkali injection port (23) arranged at the upper part of the side wall.

3. The treatment device for desulfurization and denitrification of flue gas according to claim 2, wherein the demisting chamber (3) comprises a clean water spraying device (32) arranged at the top, the clean water spraying device (32) is connected with a clean water injection port (34), a demister (31) is arranged right below the clean water spraying device (32), and a wastewater pool (33) is arranged right below the demister (31).

4. The treatment device for desulfurization and denitrification of flue gas according to claim 3, further comprising an alkaline solution tank (5), wherein the alkaline solution tank (5) is connected with a washing gas alkaline solution injection port (13) of the desulfurization and denitrification chamber (1) through a pipeline (53), the alkaline solution tank (5) comprises a liquid storage chamber (51) and a liquid extracting pump (52) arranged below the liquid storage chamber (51), and the liquid extracting pump (52) is connected with the pipeline (53).

5. The device for desulfurization and denitrification of flue gas according to claim 4, wherein the bottom of the waste liquid tank (14) is provided with a waste liquid recovery port (16), the bottom of the weak alkali gas washing tank (21) is provided with a weak alkali waste liquid recovery port (24), and the bottom of the waste water tank (33) is provided with a clean waste water recovery port (35).