Flue gas particulate matter treatment device

Abstract

The utility model provides a flue gas particulate matter treatment device. The flue gas particulate matter treatment device comprises a box body, a spraying unit and a filtering unit, an air inlet in the lower part of the box body is communicated with smoke exhaust equipment; an air outlet is formed in the top of the box body; the spraying unit comprises a water storage tank, a water pump, a spraying pipe and atomizing nozzles, the water storage tank is communicated with the box body, one end of the spraying pipe is communicated with the water storage tank through the water pump, the other end of the spraying pipe is respectively communicated with a plurality of spraying branch pipes, the plurality of spraying branch pipes horizontally extend into the box body, and the bottoms of the spraying branch pipes are connected with the plurality of atomizing nozzles; a filter wall is vertically arranged at the position, close to the water pump, in the reservoir, the reservoir is divided into a concentrated liquid area and a clear liquid area by the filter wall, and one end, away from the atomizing nozzle, of the spraying pipe is communicated with the clear liquid area; the filtering unit is arranged in the box body and located between the air inlet and the atomizing nozzle. According to the device and the method, the particulate matters in the flue gas are efficiently captured and treated, so that the device is simpler and more centralized, the operation cost is reduced, and the flue gas treatment efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of flue gas treatment, and in particular to a flue gas particulate matter treatment device. Background Art

[0002] During chemical production operations, chemical equipment (such as boilers and graphitization furnaces) typically produces large amounts of flue gas. This flue gas contains not only polluting gases but also a large number of impurity particles. These impurity particles are directly discharged into the atmosphere, polluting the atmosphere and causing harm to human production and life. Therefore, it is necessary to treat the flue gas and capture the particles in the flue gas before it is discharged to achieve the purpose of flue gas purification.

[0003] In the prior art, particles in flue gas are treated by connecting multiple stages of dust removal equipment (such as cyclone dust collectors) in series. However, this method not only consumes a lot of electricity during the treatment process and occupies a large area of equipment, but also has the problem of incomplete treatment of fine particles. Utility Model Content

[0004] The present application provides a flue gas particulate matter treatment device to solve the above-mentioned problems mentioned in the background technology.

[0005] The present application provides a smoke particulate matter treatment device, comprising: a box, a spray unit and a filter unit; an air inlet at the lower part of the box is connected to a smoke exhaust device through a smoke inlet pipe, and an air outlet is provided at the top of the box;

[0006] The spray unit includes a water reservoir, a water pump, a spray pipe and an atomizing nozzle. The water reservoir is located below the box and is connected to the box. One end of the spray pipe is connected to the water reservoir through the water pump, and the other end of the spray pipe is connected to multiple spray branch pipes. The multiple spray branch pipes extend horizontally into the box, and the bottom of the spray branch pipe is connected to multiple atomizing nozzles.

[0007] A filter wall is vertically installed near the water pump in the water reservoir, which divides the water reservoir into a concentrated liquid area and a clear liquid area. The end of the spray pipe away from the atomizing nozzle is connected to the clear liquid area.

[0008] The filter unit is arranged in the box and located between the air inlet and the atomizing nozzle.

[0009] Optionally, the filter unit includes a filter plate, a telescopic cylinder, and a filter residue receiving tank. The filter plate is tilted in the box body, the fixed end of the telescopic cylinder is located on the outside of the box body connected to the higher end of the filter plate, the telescopic end of the telescopic cylinder is connected to a push plate, the push plate extends into the box body along the tilted direction of the filter plate, and the bottom of the push plate is in contact with the plate surface of the filter plate, and the filter residue receiving tank is arranged at the lower end of the filter plate.

[0010] Optionally, the connection between the telescopic cylinder and the side wall of the box body is connected through a flexible seal.

[0011] Optionally, the filter residue receiving tank is further connected to a filter press, and the liquid outlet of the filter press is connected to the clear liquid area.

[0012] Optionally, an adsorption unit is provided above the spray unit in the box, the adsorption unit comprising an activated carbon filter screen, a re-cooling pipe and a refrigerator, the outer periphery of the activated carbon filter screen is connected to the inner wall of the box, and the re-cooling pipe passes through the interior of the activated carbon filter screen and is arranged in a curve;

[0013] The heat exchange medium inlet end of the recooling tube is communicated with the outlet of the refrigerator, and the heat exchange medium outlet end of the recooling tube is communicated with the inlet of the refrigerator.

[0014] Optionally, a pre-cooling pipe is provided on the periphery of the flue gas inlet pipe, and the inner wall of the pre-cooling pipe and the outer wall of the flue gas inlet pipe form a pre-cooling cavity;

[0015] The heat exchange medium outlet end of the recooling tube is communicated with the inlet of the precooling tube, and the outlet of the precooling tube is communicated with the inlet of the refrigerator.

[0016] Optionally, a suspended matter concentration sensor is provided in the concentrated liquid area.

[0017] The flue gas particulate matter treatment device provided in this application achieves efficient capture and treatment of particulate matter in flue gas, and has the following beneficial effects compared to the existing technology:

[0018] (1) The larger particles in the flue gas are filtered through the filter unit. The large particles of impurities are filtered and fall into the water reservoir, achieving the initial capture of the particulate impurities. After passing through the filter unit, the flue gas continues to move upward. The spray unit sprays the absorption liquid into the flue gas. The mist absorption liquid contacts the flue gas during its falling process. The tiny particles in the flue gas collide with the absorption liquid sprayed by the spray unit. While the absorption liquid absorbs the acidic substances, the particles continue to aggregate and form large particles. Under the action of gravity, they fall to the filter unit. The particles fall on the filter unit, and the absorption liquid falls into the water reservoir through the filter unit. At the same time, the flue gas is cooled and the acidic substances in the flue gas are absorbed, preventing the acidic substances from being discharged into the atmosphere with the flue gas, causing air pollution or aggravating the formation of acid rain. The flue gas after dust removal continues to rise to the top of the box and is discharged through the air outlet. The absorption liquid is sprayed through multiple atomizing nozzles, and the contact area between the sprayed absorption liquid and the flue gas is larger, which can improve the cooling and dust removal efficiency of the flue gas. At the same time, the spray unit sprays the absorption liquid, which can save the use of absorption liquid and reduce costs. This application makes the flue gas treatment equipment more simple and centralized by concentrating the filtering unit and the spray unit in the box to treat particulate matter in the flue gas. Compared with the existing technology, it reduces the equipment footprint and the treatment process. At the same time, it is more convenient to repair the equipment, greatly reduces the consumption of electricity, and reduces the operating cost; thereby improving the flue gas treatment efficiency.

[0019] (2) The flue gas treatment efficiency is improved by setting up an adsorption unit to further cool and adsorb the flue gas. The adsorption unit includes an activated carbon filter plate, a re-cooling pipe and a refrigerator. The activated carbon filter plate is used to re-adsorb the flue gas, adsorbing pollutants such as fine particles therein, thereby achieving a further purification effect. The re-cooling pipe is a curved pipeline with a heat exchange medium inlet end and a heat exchange medium outlet end. The re-cooling pipe is located in the activated carbon filter plate and passes through the activated carbon filter plate. The refrigerator transports the heat exchange medium to the re-cooling pipe. When the flue gas passes through the adsorption unit, the impurity particles in the flue gas are re-adsorbed by the activated carbon filter plate. At the same time, the flue gas exchanges heat with the heat exchange medium in the re-cooling pipe, further cooling the flue gas, greatly reducing the temperature and impurity particle content of the flue gas when it is discharged, and avoiding the pollution of the flue gas to the surrounding environment.

[0020] (3) The flue gas particulate matter treatment device provided in this application is simple to operate, easy to install, occupies a small area, and is suitable for large-scale promotion within the industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 A schematic structural diagram of a flue gas particulate matter treatment device provided in one embodiment of the present application;

[0023] Figure 2 A schematic structural diagram of a flue gas particulate matter treatment device provided in another embodiment of the present application;

[0024] Figure 3 A schematic structural diagram of an adsorption unit provided in one embodiment of the present application;

[0025] Figure 4 A schematic structural diagram of a flue gas particulate matter treatment device provided in yet another embodiment of the present application;

[0026] Description of reference numerals:

[0027] 1: Box body, 2: Flue gas inlet pipe, 3: Spray unit, 4: Filter unit, 110: Air inlet, 120: Air outlet, 310: Water reservoir, 311: Filter wall, 312: Concentrated liquid area, 313: Clear liquid area, 320: Water pump, 330: Spray pipe, 340: Atomizing nozzle, 350: Spray branch pipe, 360: Suspended matter concentration sensor, 410: Filter plate, 420: Telescopic cylinder, 421: Push plate, 430: Filter residue receiving tank, 440: Filter press, 510: Activated carbon filter screen, 520: Recooling pipe, 530: Refrigerator, 610: Pre-cooling pipe, 620: Pre-cooling cavity. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application are clearly and completely described below. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts also fall within the scope of protection of this application.

[0029] like Figure 1 As shown, the present application provides a flue gas particulate matter treatment device, comprising: a box body 1, a spray unit 3 and a filter unit 4; an air inlet 110 at the lower part of the box body 1 is connected to a smoke exhaust device through a flue gas inlet pipe 2, and an air outlet 120 is provided at the top of the box body 1;

[0030] The spray unit 3 includes a water reservoir 310, a water pump 320, a spray pipe 330, and an atomizing nozzle 340. The water reservoir 310 is located below the housing 1 and is connected to the housing 1. One end of the spray pipe 330 is connected to the water reservoir 310 through the water pump 320. The other end of the spray pipe 330 is connected to multiple spray branch pipes 350. The multiple spray branch pipes 350 extend horizontally into the housing 1, and the bottom of the spray branch pipes 350 is connected to multiple atomizing nozzles 340.

[0031] A filter wall 311 is vertically installed in the water reservoir 310 near the water pump 320. The filter wall 311 divides the water reservoir 310 into a concentrated liquid area 312 and a clear liquid area 313. The end of the spray pipe 330 away from the atomizing nozzle 340 is connected to the clear liquid area 313.

[0032] The filter unit 4 is disposed in the housing 1 and located between the air inlet 110 and the atomizing nozzle 340 .

[0033] Specifically, this embodiment takes the flue gas generated during the operation of the graphitization furnace as an example to explain the principle of the technical solution provided by this application. During the operation of the graphitization furnace, flue gas is generated. Common carbon materials such as coal and biochar contain acidic substances such as sulfur and other tiny particles at high temperatures, which will be discharged with the flue gas. Before the flue gas is discharged into the atmosphere, it is first cooled and the particulate dust is removed. In the solution provided by this application, the flue gas in the graphitization furnace is transported to the box body 1 through the flue gas inlet pipe 2. The flue gas moves from bottom to top in the box body 1. The box body 1 is provided with a spray unit 3 and a filter unit 4. After the flue gas enters the box body 1, it moves from bottom to top. When passing through the filter unit 4, the filter unit 4 filters the larger particles in the flue gas. The large particles of impurities are filtered and fall into the water reservoir 310, thereby achieving the initial capture of the particulate impurities. After passing through filter unit 4, the flue gas continues to move upward. Spray unit 3 sprays absorption liquid into the flue gas. As the misted absorption liquid falls, it contacts the flue gas, cooling it and absorbing acidic substances and other soluble substances in the flue gas, preventing them from being discharged into the atmosphere with the flue gas, causing air pollution or exacerbating the formation of acid rain. Simultaneously, tiny particles in the flue gas collide with the absorption liquid sprayed by spray unit 3. As the absorption liquid absorbs the acidic substances, it causes the small particles to aggregate and form larger particles. These particles then fall to filter unit 4 under the action of gravity. The particles land on filter unit 4, and the absorption liquid passes through filter unit 4 and falls into reservoir 310. The cooled and dust-removed flue gas continues to rise to the top of the housing 1 and is discharged through outlet 120.

[0034] Furthermore, a vibrator is provided at the bottom of the filter unit 4 for periodically vibrating the filter unit 4 , thereby helping the particles attached to the filter unit 4 to fall into the water reservoir 310 .

[0035] The spray unit 3 comprises a water reservoir 310, a water pump 320, a spray pipe 330, and an atomizing nozzle 340. The water reservoir 310 stores an absorbent liquid. The absorbent liquid is selected based on the properties of the flue gas impurity particles under actual operating conditions. For example, if the flue gas contains acidic substances, the absorbent liquid can be water or an alkaline solution. After being filtered by the filtration unit 4 and falling into the water reservoir 310, the particles fall into the concentrated liquid area 312. After being filtered by the filter wall 311, the clear liquid enters the clear liquid area 313, where the absorbent liquid is circulated and sprayed. Powered by the water pump 320, the absorbent liquid in the water reservoir 310 is pumped through the spray pipe 330 to multiple spray branches 350. From these branches 350, it is sprayed out of the atomizing nozzle 340. The sprayed absorbent liquid has a larger contact area with the flue gas, improving the capture efficiency of fine particles in the flue gas. Furthermore, the spraying of the absorbent liquid by the spray unit 3 conserves the use of absorbent liquid and reduces costs. The present application processes particulate matter in the flue gas by concentrating the filtering unit and the spray unit in the box 1, making the flue gas treatment equipment more simplified and centralized. Compared with the existing technology, the equipment footprint is reduced, the treatment process is shortened, and the maintenance of the equipment is more convenient, which greatly reduces the consumption of electricity and reduces the operating costs; thereby improving the flue gas treatment efficiency.

[0036] The present application realizes the efficient capture and treatment of particulate matter in the flue gas through the above scheme. The larger particles in the flue gas are filtered by the filter unit. The large particles of impurities are filtered and fall into the water reservoir, thereby realizing the preliminary capture of the particulate impurities. Then, the absorption liquid is sprayed into the flue gas through the spray unit. The mist absorption liquid contacts the flue gas during its falling process. The tiny particles in the flue gas collide with the absorption liquid sprayed by the spray unit. While the absorption liquid absorbs the acidic substances, the particles continue to aggregate and form large particles. Then, they fall to the filter unit under the action of gravity. The particles fall on the filter unit, and the absorption liquid falls into the water reservoir through the filter unit. At the same time, it can cool the flue gas and absorb the acidic substances in the flue gas, thereby preventing the acidic substances from being discharged into the atmosphere with the flue gas, causing air pollution or aggravating the formation of acid rain. At the same time, the flue gas after cooling and dust removal continues to rise to the top of the box and is discharged through the air outlet. The absorption liquid is sprayed through multiple atomizing nozzles, and the contact area between the sprayed absorption liquid and the flue gas is larger, which can improve the capture efficiency of fine particles in the flue gas. At the same time, the spray unit sprays the absorption liquid, which can save the use of absorption liquid and reduce costs. This application makes the flue gas treatment equipment more simple and centralized by concentrating the filtration unit and the spray unit in the box to treat particulate matter in the flue gas. Compared with the existing technology, it reduces the equipment footprint and the treatment process, and at the same time makes the equipment maintenance more convenient and reduces the operating cost; thereby improving the flue gas treatment efficiency.

[0037] like Figure 2As shown, optionally, the filter unit 4 includes a filter plate 410, a telescopic cylinder 420, and a filter residue receiving tank 430. The filter plate 410 is tilted and arranged in the box body 1. The fixed end of the telescopic cylinder 420 is located on the outside of the box body 1 connected to the higher end of the filter plate 410. The telescopic end of the telescopic cylinder 420 is connected to a push plate 421. The push plate 421 extends into the box body 1 along the tilt direction of the filter plate 410, and the bottom of the push plate 421 is in contact with the plate surface of the filter plate 410. The filter residue receiving tank 430 is arranged at the lower end of the filter plate 410.

[0038] Specifically, when the flue gas enters the housing 1, it passes through the filter plate 410, filtering large particles in the flue gas and achieving preliminary capture of particles in the flue gas. After the flue gas continues to move upward through the filter plate 410, the tiny particles in the flue gas collide with the absorption liquid sprayed by the spray unit 3. The absorption liquid absorbs acidic substances and soluble substances, causing the particles to continuously aggregate and form large particles. After falling onto the filter plate 410 under the action of gravity, the absorption liquid passes through the filter unit 4 and falls into the concentrated liquid area 312. The particulate impurities on the filter plate 410 continue to increase. By activating the telescopic cylinder 420, the push plate 421 connected to the telescopic end of the telescopic cylinder 420 pushes the impurities on the filter plate 410 into the filter residue receiving tank 430, so that the filter holes of the filter plate 410 are promptly restored to the filtering state, avoiding clogging of the filter plate 410, and thus ensuring continuous treatment of the flue gas.

[0039] By timing the opening and closing of the telescopic cylinder 420, manual operation is reduced and the degree of automation of the device operation is improved.

[0040] Optionally, the connection between the telescopic cylinder 420 and the side wall of the box body 1 is connected through a flexible seal.

[0041] Specifically, such a configuration can prevent smoke from leaking from the connection between the telescopic cylinder 420 and the side wall of the box body 1, thereby improving the stability and safety of the device operation. For example, a flexible sealant, a rubber seal ring, a silicone seal ring, etc. can be used.

[0042] like Figure 2 As shown, optionally, the filter residue receiving tank 430 is further connected to a filter press 440 , and the liquid outlet of the filter press 440 is connected to the clear liquid area 313 .

[0043] Specifically, the filter residue receiving tank 430 receives impurities containing a large amount of water from the filter plate 410, and filters these impurities through the filter press 440. The resulting filtrate is returned to the clear liquid area 313 to continue to be used as an absorption liquid in sequence. In the process of treating a large amount of flue gas in the factory, the use of absorption liquid can be greatly saved, the treatment of wastewater can be reduced, and the cost of the enterprise can be reduced.

[0044] like Figure 3 and Figure 4As shown, optionally, an adsorption unit is provided above the spray unit 3 in the housing 1, and the adsorption unit includes an activated carbon filter plate 510, a re-cooling pipe 520, and a refrigerator 530. The outer periphery of the activated carbon filter plate 510 is connected to the inner wall of the housing 1, and the re-cooling pipe 520 passes through the interior of the activated carbon filter plate 510 and is arranged in a curve.

[0045] The heat exchange medium inlet end of the recooling pipe 520 is communicated with the outlet of the refrigerator 530 , and the heat exchange medium outlet end of the recooling pipe 520 is communicated with the inlet of the refrigerator 530 .

[0046] Specifically, after being cooled and particulate matter removed by the spray unit 3, the flue gas continues to rise, passes through the adsorption unit at the top of the housing 1, and is further purified before being discharged through the air outlet 120. The adsorption unit comprises an activated carbon filter 510, a recooling pipe 520, and a refrigerator 530. The activated carbon filter 510 is used to re-adsorb fine particulate matter in the flue gas, thereby adsorbing fine particles and other pollutants, thereby achieving further purification. The recooling pipe 520 is a curved pipeline with a heat exchange medium inlet and outlet. The recooling pipe 520 is located within and passes through the activated carbon filter 510. The refrigerator 530 delivers the heat exchange medium to the recooling pipe 520. As the flue gas passes through the adsorption unit, impurities in the flue gas are re-adsorbed by the activated carbon filter 510. Simultaneously, the flue gas exchanges heat with the heat exchange medium in the recooling pipe 520, further cooling the flue gas. This significantly reduces the temperature and impurity content of the flue gas upon discharge, thereby preventing the flue gas from polluting the surrounding environment.

[0047] At the same time, since the re-cooling pipe 520 is located in the activated carbon filter plate 510, the activated carbon filter plate 510 can serve as a heat dissipation medium for the re-cooling pipe 520, thereby improving the cooling efficiency of the flue gas.

[0048] Among them, the heat exchange medium is chilled water, air, etc.

[0049] like Figure 3 and Figure 4 As shown, optionally, a pre-cooling pipe 610 is provided on the periphery of the flue gas inlet pipe 2, and the inner wall of the pre-cooling pipe 610 and the outer wall of the flue gas inlet pipe 2 form a pre-cooling cavity 620;

[0050] The heat exchange medium outlet end of the recooling pipe 520 is communicated with the inlet of the precooling pipe 610 , and the outlet of the precooling pipe 610 is communicated with the inlet of the refrigerator 530 .

[0051] Specifically, after the heat exchange medium from the refrigerator 530 passes through the re-cooling pipe 520 for heat exchange, it enters the inlet of the pre-cooling pipe 610 from the heat exchange medium outlet end of the re-cooling pipe 520, and exchanges heat with the flue gas from the flue gas inlet pipe 2 in the pre-cooling cavity 620, thereby pre-cooling the flue gas before entering the box body 1, thereby further improving the flue gas treatment efficiency.

[0052] like Figure 4 As shown, optionally, a suspended matter concentration sensor 360 is provided in the water reservoir 310 .

[0053] Specifically, the absorption liquid in the concentrated liquid area 312 is continuously circulated and absorbs impurity particles in the flue gas. As the device operates, the concentration of suspended particulate matter in the absorption liquid in the concentrated liquid area 312 will become larger and larger. The suspended matter concentration sensor 360 is used to detect the concentration of suspended particles in the absorption liquid in the concentrated liquid area 312 in real time. When the reading of the suspended matter concentration sensor 360 is greater than or equal to a preset value, the absorption liquid in the water reservoir 310 is replaced to ensure efficient treatment of the flue gas.

[0054] The technical solution of this application is described in detail below with reference to specific embodiments.

[0055] The operation process of the flue gas particulate matter treatment device in this embodiment is as follows:

[0056] The flue gas from the graphitization furnace is transported into the housing 1 through the flue gas inlet pipe 2. The flue gas moves from bottom to top in the housing 1. When passing through the filter unit 4, the filter plate 410 filters larger particles in the flue gas. The large impurities are filtered and fall into the concentrated liquid area 312. After being filtered by the filter wall 311, the clear liquid enters the clear liquid area 313, which circulates and sprays the absorption liquid, thus achieving the initial capture of particulate impurities. After passing through filter unit 4, the flue gas continues to move upward. Powered by water pump 320, it pumps the absorbent in clear liquid area 313 through spray pipe 330 to multiple spray branch pipes 350. From there, it is sprayed out from atomizing nozzle 340. As the misted absorbent falls, it comes into contact with the flue gas. Tiny particles in the flue gas collide with the absorbent sprayed from spray unit 3, causing them to aggregate and form larger particles. These particles then fall under gravity onto filter plate 410, where they pass through and into reservoir 310. Simultaneously, the absorbent sprayed from atomizing nozzle 340 cools the flue gas and absorbs acidic substances in the flue gas, preventing them from being discharged into the atmosphere with the flue gas, causing air pollution or worsening acid rain.

[0057] As particulate matter accumulates on filter plate 410, telescopic cylinder 420 is activated. Push plate 421, connected to the telescopic end of telescopic cylinder 420, pushes the impurities from filter plate 410 into filter residue receiving tank 430, allowing the filter holes of filter plate 410 to resume filtering and preventing clogging of filter plate 410. When the reading of suspended matter concentration sensor 360 is greater than or equal to a preset value, the absorption liquid in reservoir 310 is replaced to ensure efficient flue gas treatment.

[0058] After cooling and dust removal by the spray unit 3, the flue gas continues to rise. Meanwhile, the refrigerator 530 delivers the heat exchange medium to the recooling pipe 520. As the flue gas passes through the adsorption unit, the activated carbon filter 510 re-adsorbs the flue gas, removing pollutants such as fine particles. Simultaneously, the flue gas exchanges heat with the heat exchange medium in the recooling pipe 520, further cooling the flue gas. After exchanging heat in the recooling pipe 520, the heat exchange medium enters the inlet of the precooling pipe 610 from the heat exchange medium outlet of the recooling pipe 520. Heat is exchanged with the flue gas in the precooling cavity 620, pre-cooling the flue gas before it enters the housing 1, further improving the flue gas treatment efficiency. Finally, the heat exchange medium is delivered back to the refrigerator 530 from the outlet of the precooling pipe 610 for further cooling.

[0059] The smoke continues to move to the top of the box body 1 and is discharged through the air outlet 120.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A flue gas particulate matter treatment device, characterized in that: include: A box body (1), a spray unit (3) and a filter unit (4); an air inlet (110) at the lower portion of the box body (1) is connected to a smoke exhaust device via a smoke inlet pipe (2), and an air outlet (120) is provided at the top of the box body (1); The spray unit (3) comprises a water reservoir (310), a water pump (320), a spray pipe (330) and an atomizing nozzle (340); the water reservoir (310) is located below the housing (1) and is in communication with the housing (1); one end of the spray pipe (330) is in communication with the water reservoir (310) via the water pump (320); the other end of the spray pipe (330) is in communication with a plurality of spray branch pipes (350), the plurality of spray branch pipes (350) extend horizontally into the housing (1), and the bottom of the spray branch pipe (350) is connected to a plurality of atomizing nozzles (340); A filter wall (311) is vertically provided in the water reservoir (310) near the water pump (320), and the filter wall (311) divides the water reservoir (310) into a concentrated liquid area (312) and a clear liquid area (313). An end of the spray pipe (330) away from the atomizing nozzle (340) is connected to the clear liquid area (313); The filter unit (4) is arranged in the box (1) and is located between the air inlet (110) and the atomizing nozzle (340).

2. The flue gas particulate matter treatment device according to claim 1, characterized in that: The filter unit (4) comprises a filter plate (410), a telescopic cylinder (420), and a filter residue receiving tank (430); the filter plate (410) is arranged obliquely in the box body (1); the fixed end of the telescopic cylinder (420) is located outside the box body (1) connected to the higher end of the filter plate (410); the telescopic end of the telescopic cylinder (420) is connected to a push plate (421); the push plate (421) extends into the box body (1) along the oblique direction of the filter plate (410), and the bottom of the push plate (421) is arranged in contact with the plate surface of the filter plate (410); and the filter residue receiving tank (430) is arranged at the lower end of the filter plate (410).

3. The flue gas particulate matter treatment device according to claim 2, characterized in that: The connection between the telescopic cylinder (420) and the side wall of the box (1) is connected via a flexible seal.

4. The flue gas particulate matter treatment device according to claim 2, characterized in that: The filter residue receiving tank (430) is also connected to a filter press (440), and the liquid outlet of the filter press (440) is in communication with the clear liquid area (313).

5. The flue gas particulate matter treatment device according to claim 1, characterized in that: An adsorption unit is provided above the spray unit (3) in the box (1), and the adsorption unit comprises an activated carbon filter screen (510), a recooling pipe (520), and a refrigerator (530). The outer periphery of the activated carbon filter screen (510) is connected to the inner wall of the box (1), and the recooling pipe (520) passes through the interior of the activated carbon filter screen (510) and is arranged in a curve. The heat exchange medium inlet end of the sub-cooling pipe (520) is communicated with the outlet end of the refrigerator (530), and the heat exchange medium outlet end of the sub-cooling pipe (520) is communicated with the inlet end of the refrigerator (530).

6. The flue gas particulate matter treatment device according to claim 5, characterized in that: A pre-cooling pipe (610) is provided on the outer periphery of the flue gas inlet pipe (2), and the inner wall of the pre-cooling pipe (610) and the outer wall of the flue gas inlet pipe (2) form a pre-cooling cavity (620); The heat exchange medium outlet end of the recooling pipe (520) is connected to the inlet of the precooling pipe (610), and the outlet of the precooling pipe (610) is connected to the inlet of the refrigerator (530).

7. The flue gas particulate matter treatment device according to any one of claims 1 to 6, characterized in that: A suspended matter concentration sensor (360) is provided in the concentrated liquid area (312).

Images