CN214345539U - Desulfurization dust collecting equipment and flue gas treatment equipment - Google Patents

Abstract

The application relates to an atmosphere pollution control technical field especially relates to a desulfurization dust collecting equipment and flue gas treatment equipment, and desulfurization dust collecting equipment includes: the method comprises the following steps: a main body formed with a closed chamber; the liquid storage device is arranged on the main body and is used for containing reaction liquid; the spraying device is arranged on the main body, and the liquid storage device is communicated with the spraying device; and the flow guide assembly is arranged in the closed cavity and divides the closed cavity into at least two communicated flow guide cavities, and the flow guide cavities are used for limiting the flow direction of the smoke entering the main body. The application provides a desulfurization dust collecting equipment prescribes a limit to a plurality of water conservancy diversion chambeies with the airtight cavity of main part through the piece, and the intercommunication in order between a plurality of water conservancy diversion chambeies to each water conservancy diversion chamber all prescribes a limit to the flow direction of flue gas alone, makes the flue gas can enough obtain to spray and purifies, can show the desulfurization of improvement to the flue gas, dust removal effect again through the washing of reaction liquid, and the final product safety can not produce the pollution.

Description

Desulfurization dust collecting equipment and flue gas treatment equipment

Technical Field

The application relates to the technical field of atmosphere pollution prevention and control, in particular to a desulfurization and dust removal device and a flue gas treatment device.

Background

In recent years, the number of industrial production enterprises in China is continuously increased, the problem of air pollution is increasingly serious, the air is one of the most basic environmental elements for human and even all things on the earth to live, and the pollution of the air environment can bring disasters to the survival, life, work and sustainable development of human beings, so that the problem of effectively treating the air pollutants becomes a main problem of social attention. The current technological innovation, social progress and improvement of human life quality, the quality of environmental protection is more and more emphasized, the emission standard of environmental emission protection is higher and higher, and the emission standard meets the international environmental protection emission standard, so that the smoke emission of the coal-fired boiler is reasonably treated, and the method has great significance for protecting the atmospheric environment of China.

The existing desulfurization and dust removal technologies mainly comprise three types, namely spray tower desulfurization and dust removal, cyclone dust removal and cloth bag dust removal, wherein the cyclone dust removal has certain limitation due to the interaction of centrifugal force, gravity and inertia force on particles, the separation efficiency of fine dust particles is low, and the desulfurization effect is general; the pressure difference between the inlet and the outlet of the bag-type dust collector rises along with the increase of dust on the surface of the filter bag, and the filtering efficiency is reduced. When treating gases containing water vapor with a bag-type dust collector, there is a problem of condensation. The cloth bag dust remover has the advantages of low filtering speed, large general size, large steel consumption, poor material quality of a filter bag, short service life, large pressure loss, high operating cost and the like, and both cyclone dust removal and cloth bag dust removal have certain defects which are difficult to overcome, so that the spray tower is commonly used for desulfurization and dust removal, but the existing spray tower desulfurization and dust removal spray tower has the defects of limited contact range of liquid drops and dust particles, limited purification effect, large size and high operating cost.

SUMMERY OF THE UTILITY MODEL

The application aims to provide a desulfurization dust collecting equipment and flue gas treatment equipment to solve the technical problem that the spray tower purifying effect that exists is limited, purification efficiency is low and the running cost is high among the prior art to a certain extent.

The application provides a desulfurization dust collecting equipment includes:

a main body formed with a closed chamber;

the liquid storage device is arranged on the main body and is used for containing reaction liquid;

the spraying device is arranged on the main body, and the liquid storage device is communicated with the spraying device;

and the flow guide assembly is arranged in the closed cavity and divides the closed cavity into at least two communicated flow guide cavities, and the flow guide cavities are used for limiting the flow direction of the smoke entering the main body.

In any one of the above technical solutions, further, the liquid storage device is disposed at the bottom of the main body, and the spraying device includes:

the spraying cavity is arranged at the top of the main body and is provided with a spraying screen;

the liquid storage device comprises a pump body, wherein a liquid inlet of the pump body is communicated with the liquid storage device through a first pipeline, and a liquid outlet of the pump body is communicated with the spraying cavity through a second pipeline.

In any of the above technical solutions, further, the spray chamber further includes a top plate for covering the top of the main body, the top plate faces the spray screen and is spaced apart from the spray screen, and the top plate is formed with through holes.

In the above technical solution, further, the flow guide assembly includes:

the liquid level of the liquid storage device is provided with a first preset space, and the first preset space is formed between one side edge of the first guide plate and the liquid level of the liquid storage device;

at least one second baffle, the second baffle and the first baffle being spaced apart; the first side edge of the second guide plate is positioned below the liquid level of the liquid storage device, and a second preset distance is formed between a second side edge of the second guide plate, which is opposite to the first side edge of the second guide plate, and the spraying screen.

In any one of the above technical solutions, further, one end of the first pipeline is connected to the pump body, and the other end of the first pipeline is provided with a filter head, and the filter head is disposed below the liquid level of the liquid storage device.

In any one of the above technical solutions, further, one end of the second pipeline is communicated with the pump body, a liquid distribution pipe is formed at the other end of the second pipeline, the number of the liquid distribution pipes is the same as that of the through holes, and each liquid distribution pipe has a corresponding through hole.

In any one of the above technical solutions, further, the liquid storage device includes a washing portion and a drainage portion, the washing portion is disposed at the bottom of the main body, the drainage portion extends to the outside of the main body, and the filter tip is disposed in the drainage portion.

In any of the above technical solutions, further, an opening of the washing part is disposed facing the diversion cavity, and the washing part is provided with an inclined bottom surface;

the drainage part is provided with a cover body.

In any of the above technical solutions, further, a flue gas inlet is formed in the first side wall of the main body, and a fan is arranged at the flue gas inlet;

the second side wall of the main body, which is opposite to the first side wall, is provided with a flue gas outlet, and the flue gas outlet is communicated with a flue.

The application also provides flue gas treatment equipment, including any one of the above technical scheme desulfurization dust collecting equipment, therefore, have this desulfurization dust collecting equipment's whole beneficial technological effect, here, no longer give unnecessary details.

Compared with the prior art, the beneficial effect of this application is:

the application provides desulfurization dust collecting equipment includes: a main body formed with a closed chamber; the liquid storage device is arranged on the main body and is used for containing reaction liquid; the spraying device is arranged on the main body, and the liquid storage device is communicated with the spraying device; and the flow guide assembly is arranged in the closed cavity and divides the closed cavity into at least two communicated flow guide cavities, and the flow guide cavities are used for limiting the flow direction of the smoke entering the main body.

The utility model provides a desulfurization dust collecting equipment, injects a plurality of water conservancy diversion chambeies with the airtight cavity of main part through the piece, communicate in order between a plurality of water conservancy diversion chambeies, and each water conservancy diversion chamber all injects the flow direction of flue gas alone, under the effect of fan, make the flue gas that gets into get into airtight cavity with the mode of circling round, the flow path of flue gas has been increased to a great extent, ensure flue gas and spray liquid, reaction liquid fully contact, and through many times diversion flows, flow direction in each cavity changes in turn in proper order, the flue gas can both obtain spray purification, can pass through the washing of reaction liquid, and when the flue gas passes through the water conservancy diversion subassembly, under the effect of the fan that is used for blowing into the flue gas, the velocity of flow of flue gas increases, combine the effect of guide plate, produce similar centrifugal effect, can make as much flue gas and reaction liquid contact as far as possible obtain the washing simultaneously not influencing the flow of flue gas, the desulfurization and dust removal effects on the flue gas are obviously improved, the final product is safe, and no secondary pollution is generated.

The application provides a flue gas treatment equipment, including the aforesaid desulfurization dust collecting equipment, therefore, will ensure the desulfurization dust removal effect of flue gas through this desulfurization dust collecting equipment, and simple structure, easy operation, and the result is safe, can not produce secondary pollution.

Drawings

In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of a desulfurization and dust removal device provided in an embodiment of the present application;

FIG. 2 is another perspective view of a desulfurization and dust removal apparatus provided in an embodiment of the present application;

FIG. 3 is a schematic view of another structure of a desulfurization and dust removal device provided in the embodiment of the present application.

Reference numerals:

1-main body, 101-closed chamber, 102-flue gas inlet, 103-flue gas outlet, 2-liquid storage device, 201-washing part, 2011-inclined bottom surface, 202-drainage part, 2021-cover body, 3-spraying device, 301-spraying cavity, 3011-top plate, 3012-spraying screen, 302-pump body, 3021-support, 303-first pipeline, 3031-filtering end head, 304-second pipeline, 3041-liquid separating pipe, 4-flow guide assembly, 401-first flow guide plate, 402-second flow guide plate, 5-first flow guide cavity, 6-second flow guide cavity, 7-third flow guide cavity, 8-fourth flow guide cavity, 9-fan and 10-flue.

Detailed Description

The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments.

The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The desulfurization and dust removal apparatus and the flue gas treatment apparatus according to some embodiments of the present application are described below with reference to fig. 1 to 3.

Referring to fig. 1 to 3, an embodiment of the present application provides a desulfurization dust removing apparatus, including: the device comprises a main body 1, a liquid storage device 2, a spraying device 3 and a flow guide assembly 4; wherein, the liquid storage device 2 is arranged at the bottom of the main body 1, an alkaline solution capable of reacting with sulfur-containing substances in the flue gas is stored in the liquid storage device 2, and the alkaline solution can also play a role of dedusting the flue gas in a manner similar to washing, and can be but not limited to a hydrated lime aqueous solution (a calcium hydroxide aqueous solution);

the spraying device 3 is arranged at the top of the main body 1, and the spraying device 3 is communicated with the liquid storage device 2, so that the reaction liquid in the liquid storage device 2 can be supplemented into the spraying device 3, the reaction liquid is sprayed downwards in the inner space of the main body 1 by the spraying device 3 in a spraying mode, the reaction liquid is fully contacted with the flue gas in a spraying liquid mode, and reacts with sulfur-containing substances to generate precipitates and simultaneously adsorbs dust in the flue gas, so that the aims of desulfurization and dust removal are fulfilled;

the top of main part 1 specifically is that the space between spray set 3's top and the stock solution device 2 forms the inside airtight cavity 101 of main part 1, water conservancy diversion subassembly 4 sets up in airtight cavity 101, divide airtight cavity 101 into a plurality of water conservancy diversion chambeies that communicate each other, the route that a plurality of water conservancy diversion chambeies that divide according to water conservancy diversion subassembly 4 after the flue gas gets into the airtight cavity 101 of main part 1 are injectd, the direction flows, the flue gas can fully contact with the spray liquor on the one hand and carry out desulfurization dust removal processing at this flow in-process, on the other hand can also contact with the reaction liquid in the stock solution device 2 of the bottom of main part 1, further obtain purifying.

Specifically, the spray device 3 includes a top plate 3011 disposed on the top of the main body 1, a spray screen 3012 and the pump body 302, the top plate 3011 is used to cover the top end of the main body 1 to ensure the tightness of the closed chamber 101 of the main body 1, the spray screen 3012 is disposed below the top plate 3011 and faces the top plate 3011, and preferably, the spray screen 3012 is disposed parallel to the top plate 3011;

the spraying screen 3012 is formed with a plurality of spraying holes having a diameter of 1mm to 3mm, and the diameter of the spraying holes is preferably 3 mm. The top plate 3011 is formed with a plurality of through holes, the inlet of the pump body 302 is communicated with the liquid storage device 2 through the first pipeline 303, the outlet of the pump body 302 is communicated with the spraying cavity 301 through the second pipeline 304, under the action of the pump body 302, the reaction liquid in the liquid storage device 2 can be pumped into the spraying cavity 301, and one end of the second pipeline 304, which is far away from the pump body 302, is connected with a liquid distribution pipe 3041, and the liquid distribution pipe 3041 enables the outlet of the second pipeline 304 to form a plurality of branches.

It should be noted that, the connection mode between the spraying screen 3012 and the side wall of the main body 1 is a movable connection, for example, a sliding groove is formed on the inner wall of the main body 1, the edge of the spraying screen 3012 can be adapted to and slidably connected to the sliding groove, or the inner wall of the main body 1 forms a support bar, the spraying screen 3012 is set on the support bar, and the support bar can support the spraying screen 3012, of course, the connection mode between the spraying screen 3012 and the main body 1 is not limited to the sliding connection or the overlapping, but can be other movable connection modes, and it is intended that the through hole on the surface of the spraying screen 3012 is usually small in diameter, and after long-time spraying work, the through hole may be blocked, and the movable connection is convenient to detach and clean, and the spraying effect is not affected.

Further, a bracket 3021 is provided on the outer wall surface of the main body 1 on the side where the drain 202 of the liquid storage device 2 is provided, and the bracket 3021 is used to support and fix the pump body 302.

Preferably, the number of the liquid dividing pipes 3041 is two, which are a first liquid dividing pipe and a second liquid dividing pipe, the two liquid dividing pipes 3041 extend in directions departing from each other, the first liquid dividing pipe comprises a first bending part, the second liquid dividing pipe comprises a second bending part, the number of the through holes formed on the top plate 3011 and the number of the liquid dividing pipes 3041 are also two, the first bending part is communicated with one of the through holes, the second bending part is communicated with the other through hole, so that the pump body 302 can pump the reaction liquid in the liquid storage device 2 into the spraying cavity 301 through the first pipeline 303, the pump body 302, the second pipeline 304, the first liquid dividing pipe (the first bending part) and the second liquid dividing pipe (the second bending part), and the uniformity of the reaction liquid entering the spray chamber 301 can be ensured under the action of the two liquid-separating pipes 3041, thereby ensuring the uniformity of spraying liquid when the spraying screen 3012 sprays the reaction liquid.

Further, one end of the first pipeline 303 is connected to the pump body 302, one end of the first pipeline 303, which is far away from the pump body 302, is provided with a filtering tip 3031, and the filtering tip 3031 is immersed below the liquid level of the liquid storage device 2, so that when the pump body 302 extracts the reaction liquid, the filtering tip 3031 can filter the reaction liquid, and impurities in the reaction liquid in the liquid storage device 2 are filtered.

Specifically, the caliber of the filter tip 3031 is slightly larger than the diameter of the first pipeline 303, so that a sufficient amount of solution can be extracted to the spraying device 3 under the action of the pump body 302, and the filter tip 3031 is provided with a filter screen, and as precipitated substances and agglomerated dust generated after the spray liquid reacts with the flue gas finally fall back to the liquid storage device 2, and when the reaction liquid is a slaked lime water solution, the reaction liquid may be layered, and by arranging the filter tip 3031 and the filter screen, the precipitated substances in the liquid storage device 2 can be filtered, so that impurities and precipitates are prevented from being sucked into the pump body 302 and the spraying device 3.

Further, the flow guiding assembly 4 includes a first flow guiding plate 401 and a second flow guiding plate 402, which are not limited in number, and the first flow guiding plate 401 and the second flow guiding plate 402 are arranged at intervals, preferably, the number of the first flow guiding plates 401 is two, and the number of the second flow guiding plates 402 is one example: the first side edge of the first baffle 401 is connected with the spraying screen 3012 according to the upper side edge in the state shown in fig. 1, the second side edge of the first baffle 401 is suspended above the liquid storage device 2 according to the lower side edge in the state shown in fig. 1, a first predetermined distance is formed between the second side edge of the first baffle 401 and the liquid level of the liquid storage device 2, the second baffle 402 is disposed between the two first baffles 401, the first side edge of the second baffle 402 is located below the liquid level of the liquid storage device 2 according to the lower side edge in the state shown in fig. 1, but a certain distance is formed between the lower side edge of the second baffle 402 and the bottom wall surface of the liquid storage device 2, so as to prevent the second baffle 402 from influencing the fluidity of the reaction liquid in the liquid storage device 2, and a second predetermined distance is formed between the second side edge of the second baffle 402 and the spraying screen 3012 according to the upper side edge in the state shown in fig. 1, for passing the purified flue gas into the next diversion cavity.

It should be noted that, according to the state shown in fig. 1, a plurality of first vertical sliding grooves are arranged at intervals on the inner wall of the front side wall of the main body 1, a plurality of second vertical sliding grooves are symmetrically arranged on the inner wall of the rear side wall and the inner wall of the front side wall of the main body 1, two opposite side edges of the first guide plate 401 and the second guide plate 402 are respectively connected with the first vertical sliding grooves and the second vertical sliding grooves, the first vertical sliding grooves and the second vertical sliding grooves are used for fixing the first guide plate 401 and the second guide plate 402 on one hand, and on the other hand, the distance between the guide plates can be adjusted by selecting the number of the sliding grooves at intervals, thereby limiting the number of the diversion cavities, drawing up the number of the diversion cavities according to the matching of the introduced amount of the flue gas, correspondingly adjusting the power of the fan 9 for blowing the flue gas, the setting of each variable can be coordinated with each other, so that the purification effect can be ensured, the power consumption is reduced, and the operating cost is saved.

Further, the liquid storage device 2 includes a washing portion 201 having a tank structure and a drainage portion 202 having a tank structure, the washing portion 201 is disposed at the bottom of the main body 1, and an opening of the tank structure of the washing portion 201 is disposed facing the spraying screen 3012, so that the washing portion 201 can receive the reaction liquid sprayed and falling through the spraying screen 3012, so that the spraying liquid flows back to the washing portion 201 for secondary use, the drainage portion 202 and the washing portion 201 have an integral structure, and the drainage portion 202 extends to a portion outside the main body 1 relative to the washing portion 201, and the tank structure of the drainage portion 202 is provided with a cover 2021, which facilitates to supplement the reaction liquid into the liquid storage device 2 or to replace the reaction liquid in the liquid storage device 2, to clean the liquid storage device 2, and the like.

In addition, the inclined bottom 2011 of the washing portion 201 of the liquid storage device 2 is inclined, and one side of the inclined bottom 2011 of the washing portion 201 close to the drainage portion 202 is lower than one side of the inclined bottom 2011 far away from the drainage portion 202, so that the spraying liquid falling back to the washing portion 201 again can be communicated with impurities and solid matters generated after the spraying smoke to flow back to the drainage portion 202, and the cleaning and the collection are facilitated.

It should be noted that the filter tip 3031 of the first pipeline 303 extends into the drainage part 202 and is also located outside the main body 1, so that the filter tip 3031 or the pipeline can be conveniently found and maintained when blockage, water leakage and the like occur.

According to the above arrangement, the first guide plate 401, the second guide plate 402 and the other first guide plate 401 divide the closed chamber 101 of the main body 1 into four sequentially communicated guide cavities, namely, a first guide cavity 5, a second guide cavity 6, a third guide cavity 7 and a fourth guide cavity 8, and a side wall of the main body 1 facing the first guide plate 401 is provided with a flue gas inlet 102, the flue gas inlet 102 is provided with a fan 9, a side wall of the main body 1 facing the other first guide plate 401 is provided with a flue gas outlet 103, and the flue gas outlet 103 is communicated with a flue 10. Under the action of the fan 9, sulfur-containing flue gas before treatment firstly enters the first flow guide cavity 5 through the flue gas inlet 102, the spraying screen 3012 continuously sprays spraying liquid in a foggy form, the flue gas entering the first flow guide cavity 5 is subjected to first spraying treatment and is subjected to first desulfurization treatment, the flue gas moves downwards and flows through a first preset interval between the first flow guide plate 401 and the liquid level of the liquid storage device 2 under the action of the fan 9 and the first flow guide plate 401, in the process, most of the flue gas is inevitably contacted with the liquid level, and even a part of the flue gas needs to pass through reaction liquid of the liquid storage device 2, so that the flue gas is washed once.

Then, under the action of the fan 9, the flue gas continuously flows into the second flow guide cavity 6, the spraying liquid which is sprayed downwards in the second flow guide cavity 6 is sprayed for the second time, and the flue gas flows from bottom to top under the action of the second guide plate 402 and flows through the second preset distance between the second guide plate 402 and the spraying screen 3012.

Then, the flue gas continuously flows into the third diversion cavity 7, flows from top to bottom, further performs spray purification in the third diversion cavity 7, meanwhile, flows over the liquid level of the liquid storage device 2 after flowing into the third diversion cavity 7, again washes the reaction liquid in the liquid storage device 2, then the flue gas enters the fourth diversion cavity 8, flows out from the flue gas outlet 103 of the main body 1 after being subjected to the last spray purification, and is discharged into the flue 10.

It can be seen that the desulfurization and dust removal equipment provided by the application limits a plurality of flow guide cavities in the closed cavity 101 of the main body 1 through a member, the flow guide cavities are sequentially communicated, each flow guide cavity independently limits the flow direction of the flue gas, under the action of the fan 9, the flue gas entering the closed cavity 101 in a whirling mode is enabled to enter the closed cavity 101, the flow path of the flue gas is increased to the greatest extent, the flue gas is ensured to be fully contacted with the spray liquid and the reaction liquid, and the flow directions in the cavities are sequentially and alternately changed after multiple times of turning flow, the flue gas can be sprayed and purified and can be washed by the reaction liquid, and when the flue gas passes through the first preset interval and the second preset interval, namely passes through the bottom of the first guide plate 401 and the bottom of the second guide plate 402, under the action of the fan 9, the flow velocity of the flue gas is increased, and similar centrifugal effect is generated by combining the action of the guide plates, the flow of the flue gas is not influenced, and simultaneously, as much flue gas as possible can be contacted with the reaction liquid to be washed, the desulfurization and dust removal effects on the flue gas are obviously improved, the final product is safe, and no secondary pollution is generated.

The embodiment of the application also provides flue gas treatment equipment, which comprises the desulfurization and dust removal equipment in any one of the embodiments, so that all the beneficial technical effects of the desulfurization and dust removal equipment are achieved, and the details are not repeated.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A desulfurization dust-removing apparatus characterized by comprising:

a main body formed with a closed chamber;

the liquid storage device is arranged on the main body and is used for containing reaction liquid;

the spraying device is arranged on the main body, and the liquid storage device is communicated with the spraying device;

and the flow guide assembly is arranged in the closed cavity and divides the closed cavity into at least two communicated flow guide cavities, and the flow guide cavities are used for limiting the flow direction of the smoke entering the main body.

2. The desulfurization and dust removal device of claim 1, wherein the liquid storage device is disposed at the bottom of the main body, and the spray device comprises:

the spraying cavity is arranged at the top of the main body and is provided with a spraying screen;

the liquid storage device comprises a pump body, wherein a liquid inlet of the pump body is communicated with the liquid storage device through a first pipeline, and a liquid outlet of the pump body is communicated with the spraying cavity through a second pipeline.

3. The desulfurization dust removing apparatus according to claim 2, wherein the spray chamber further comprises a top plate for covering a top portion of the main body, the top plate facing the spray screen and being spaced apart from the spray screen, the top plate being formed with through holes.

4. The desulfurization dust removal apparatus of claim 3, wherein the flow guide assembly comprises:

the liquid level of the liquid storage device is provided with a first preset space, and the first preset space is formed between one side edge of the first guide plate and the liquid level of the liquid storage device;

at least one second baffle, the second baffle and the first baffle being spaced apart; the first side edge of the second guide plate is positioned below the liquid level of the liquid storage device, and a second preset distance is formed between a second side edge of the second guide plate, which is opposite to the first side edge of the second guide plate, and the spraying screen.

5. The desulfurization and dust removal equipment of claim 2, wherein one end of the first pipeline is connected with the pump body, the other end of the first pipeline is provided with a filter head, and the filter head is arranged below the liquid level of the liquid storage device.

6. The desulfurization and dust removal apparatus according to claim 3, wherein one end of the second pipe is communicated with the pump body, and the other end of the second pipe is formed with liquid distribution pipes, the number of which is the same as the number of the through holes, each of which has a corresponding through hole.

7. The desulfurization and dust removal device of claim 5, wherein the liquid storage device comprises a washing part and a drainage part, the washing part is arranged at the bottom of the main body, the drainage part extends out of the main body, and the filter head is arranged in the drainage part.

8. The desulfurization and dust removal equipment of claim 7, wherein the opening of the washing part is arranged facing the flow guide cavity, and the washing part is provided with an inclined bottom surface;

the drainage part is provided with a cover body.

9. The desulfurization dust removal apparatus of any one of claims 1 to 8, wherein the first side wall of the main body is provided with a flue gas inlet provided with a fan;

the second side wall of the main body, which is opposite to the first side wall, is provided with a flue gas outlet, and the flue gas outlet is communicated with a flue.

10. A flue gas treatment plant, characterized by comprising a desulfurization dust removal plant according to any one of claims 1 to 9.

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