Flue gas dust removal equipment for atmospheric pollution protection

Abstract

The utility model belongs to the technical field of dust removal and purification, and particularly relates to flue gas dust removal equipment for atmospheric pollution protection, which comprises a mounting bracket, a dust filter box is fixedly arranged at the left end of the upper side wall of the mounting bracket, and sealing plates are symmetrically arranged on the left side wall and the right side wall of the dust filter box in a sliding manner; dust in flue gas can be filtered through a filter screen, water is discharged into a sulfur dioxide absorption box to absorb sulfur dioxide, and after a large amount of dust is accumulated on the surface of the filter screen, water in which sulfur dioxide is dissolved can be sprayed out through a pump body through a first transverse pipe and a spray head to wash away the dust on the surface of the filter screen; the filter screen is simple in structure and convenient to use, meshes of the filter screen cannot be blocked, reciprocating disassembly and assembly of the filter screen are effectively avoided, the filter screen is more convenient to use and saves time, dust is dissolved in water in the washing process, dust raising cannot be caused, and air pollution cannot be caused.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal and purification, in particular to a flue gas dust removal device for air pollution protection. Background Art

[0002] Industrial furnaces such as metallurgy, electricity, and building materials emit a large amount of dusty flue gas during production, which not only has a huge impact on air quality and visibility, but also the fine particles in it are extremely harmful to the respiratory system, seriously threatening people's health. Therefore, purifying and removing dust from flue gas through flue gas dust removal equipment has become a necessary measure in industrial production.

[0003] However, the existing flue gas dust removal equipment still has the following technical problems when in use:

[0004] Flue gas contains a large amount of dust and sulfur dioxide, which will seriously affect the quality of the atmosphere. After the existing dust removal equipment has filtered the dust inside through the filter for a long time, the dust accumulated on the surface of the filter will clog the mesh of the filter and affect normal filtration. The current method is to disassemble it, process it and then install it. The reciprocating disassembly and installation is very troublesome. In addition, in the process of handling dust, if the dust is not effectively dissolved in water, some dust will still be raised, thereby polluting the air environment.

[0005] To this end, a flue gas dust removal device for air pollution protection is now proposed to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide a flue gas dust removal device for air pollution protection to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flue gas dust removal device for air pollution protection, comprising a mounting bracket, a dust filter box is fixedly arranged at the left end of the upper side wall of the mounting bracket, a sealing plate is symmetrically slidably arranged on the left and right walls of the dust filter box, a fixed frame is longitudinally fixedly arranged at the upper ends of two sealing plates inside the dust filter box, and a filter screen is fixedly arranged inside the fixed frame;

[0008] A connecting pipe is fixedly arranged inside the fixed frame, a symmetrical connecting pipe is fixedly arranged on the front side wall of the connecting pipe, a first transverse pipe is fixedly arranged between two opposite connecting pipes, a uniformly arranged nozzle is fixedly arranged on one side of the first transverse pipe close to the filter screen, and a liquid inlet mechanism is fixedly arranged on the upper side wall of the dust filter box;

[0009] A flue gas exhaust pipe is fixedly arranged on the upper end of the left side wall of the dust filter box, an exhaust hood is fixedly arranged on the right side wall of the dust filter box, an exhaust fan is fixedly arranged inside the exhaust hood, a sulfur dioxide absorption box is fixedly arranged on the right end of the upper side wall of the mounting bracket, a flue gas duct is fixedly arranged on the right side wall of the exhaust hood, a second transverse pipe is fixedly arranged on the other end of the flue gas duct, the left end of the second transverse pipe extends to the interior of the sulfur dioxide absorption box, and the tube wall of the second transverse pipe is fixedly arranged with evenly arranged stirring pipes, a transmission mechanism is fixedly arranged on the right side wall of the sulfur dioxide absorption box at the lower end of the second transverse pipe, and a flue gas exhaust pipe is fixedly arranged on the left end of the upper side wall of the sulfur dioxide absorption box.

[0010] Preferably, the liquid inlet mechanism includes a pump body, which is fixedly connected to the upper side wall of the sulfur dioxide absorption box, and a liquid inlet pipe is fixedly provided on the lower side wall of the pump body, and the lower end of the liquid inlet pipe extends to the interior of the sulfur dioxide absorption box; a liquid discharge pipe is fixedly provided on the upper side wall of the pump body, and the other end of the liquid discharge pipe extends to the interior of the fixed frame and is fixedly connected to the connecting pipe.

[0011] Preferably, the transmission mechanism includes a chassis, which is fixedly connected to the right side wall of the sulfur dioxide absorption box, a motor is fixedly installed inside the chassis, a transmission rod is fixedly installed at the output end of the motor, a first pulley is sleeved on the right end of the transmission rod, a second pulley is sleeved on the outside of the second cross tube, and the first pulley is rotatably connected to the second pulley via a belt.

[0012] Preferably, a collecting funnel is fixedly provided at the lower end of the dust filter box, a collecting pipe is fixedly provided on the lower side wall of the collecting funnel, symmetrical adjusting knobs are threadedly provided on the lower side wall of the mounting bracket, a supporting plate is laterally provided at the upper ends of the two adjusting knobs, a collecting box is provided at the upper end of the supporting plate, and the lower end of the collecting pipe is plugged into the upper side wall of the collecting box.

[0013] Preferably, a sealing strip is fixedly provided on the lower side wall of the fixed frame, and the lower side wall of the sealing strip is in contact with the upper side wall of the connection between the two sealing plates.

[0014] Preferably, a pull ring is fixedly provided on one side of the two sealing plates facing away from each other.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The present application can filter the dust in the flue gas through the filter, and discharge water into the interior of the sulfur dioxide absorption box to absorb the sulfur dioxide. After a large amount of dust is accumulated on the surface of the filter, the water dissolved with the sulfur dioxide can be sprayed out through the first horizontal pipe and the nozzle by the pump body to flush the dust on the surface of the filter to ensure that the mesh is not blocked and effectively avoid the reciprocating disassembly and installation of the filter, which is more convenient and saves time. In addition, the dust is dissolved in water during the flushing process, which will not cause dust to be raised and will not pollute the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 for Figure 1 A front cross-sectional view of

[0019] Figure 3 is a side sectional view of a fixed frame;

[0020] Figure 4 It is a schematic diagram of the structure of the first transverse pipe and the nozzle.

[0021] In the figure: 1 mounting bracket, 2 dust filter box, 3 sealing plate, 4 fixing frame, 5 filter screen, 6 connecting pipe, 7 connecting pipe, 8 first transverse pipe, 9 nozzle, 10 flue gas discharge pipe, 11 exhaust hood, 12 exhaust fan, 13 sulfur dioxide absorption box, 14 flue gas connecting pipe, 15 second transverse pipe, 16 stirring pipe, 17 flue gas discharge pipe, 18 pump body, 19 liquid inlet pipe, 20 liquid discharge pipe, 21 motor, 22 transmission rod, 23 collecting funnel, 24 collecting pipe, 25 adjusting knob, 26 support plate, 27 collecting box. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] Example:

[0025] See also Figure 1-4 , the utility model provides a technical solution:

[0026] A flue gas dust removal device for air pollution protection comprises a mounting bracket 1, a dust filter box 2 is fixedly arranged at the left end of the upper side wall of the mounting bracket 1, a sealing plate 3 is symmetrically slidably arranged on the left and right sides of the dust filter box 2, a fixing frame 4 is longitudinally fixedly arranged at the upper ends of the two sealing plates 3 inside the dust filter box 2, a filter screen 5 is fixedly arranged inside the fixing frame 4, and because sulfur dioxide dissolving in water will generate sulfurous acid, which has a certain corrosive effect, when selecting the filter screen 5 here, a corrosion-resistant filter screen 5 will be selected;

[0027] A connecting pipe 6 is fixedly arranged inside the fixed frame 4, and a symmetrical connecting pipe 7 is fixedly arranged on the front side wall of the connecting pipe 6. A first transverse pipe 8 is fixedly arranged between the two opposite connecting pipes 7. A uniformly arranged nozzle 9 is fixedly arranged on the side of the first transverse pipe 8 close to the filter screen 5. A liquid inlet mechanism is fixedly arranged on the upper side wall of the dust filter box 2. The solid particles in the flue gas are filtered through the filter screen 5, and the sulfur dioxide is absorbed by water. After the internal air polluting substances are removed, the remaining gas is discharged, which effectively reduces the pollution caused to the air.

[0028] A flue gas discharge pipe 10 is fixedly provided on the upper end of the left wall of the dust filter box 2, an exhaust hood 11 is fixedly provided on the right wall of the dust filter box 2, an exhaust fan 12 is fixedly provided inside the exhaust hood 11, a sulfur dioxide absorption box 13 is fixedly provided on the right end of the upper side wall of the mounting bracket 1, a flue gas duct 14 is fixedly provided on the right wall of the exhaust hood 11, a second transverse pipe 15 is fixedly provided on the other end of the flue gas duct 14, the left end of the second transverse pipe 15 extends to the interior of the sulfur dioxide absorption box 13, and the pipe wall of the second transverse pipe 15 is fixedly provided with evenly arranged stirring pipes 16. The right side wall of the sulfur oxide absorption box 13 is located at the lower end of the second transverse pipe 15 and is fixedly provided with a transmission mechanism. The left end of the upper side wall of the sulfur dioxide absorption box 13 is fixedly provided with a flue gas exhaust pipe 17. After a large amount of dust is attached to the left side wall of the filter 5, water can be pumped in through the pump body 18 and sprayed out through the first transverse pipe 8 and the nozzle 9 to wash the dust. Compared with the previous disassembly of the filter 5 for cleaning, there is no need to disassemble the filter 5 here, which is more convenient, and the attached dust can be dissolved in water again and will not be blown up, thereby not causing air pollution.

[0029] The liquid inlet mechanism includes a pump body 18, which is fixedly connected to the upper side wall of the sulfur dioxide absorption box 13. A liquid inlet pipe 19 is fixedly provided on the lower side wall of the pump body 18, and the lower end of the liquid inlet pipe 19 extends to the interior of the sulfur dioxide absorption box 13. A liquid discharge pipe 20 is fixedly provided on the upper side wall of the pump body 18, and the other end of the liquid discharge pipe 20 extends to the interior of the fixed frame 4 and is fixedly connected to the connecting pipe 6.

[0030] The transmission mechanism includes a chassis, which is fixedly connected to the right side wall of the sulfur dioxide absorption box 13. A motor 21 is fixedly arranged inside the chassis, and a transmission rod 22 is fixedly arranged at the output end of the motor 21. A first pulley is sleeved on the right end of the transmission rod 22, and a second pulley is sleeved on the outside of the second transverse tube 15. The first pulley is rotatably connected to the second pulley through a belt. The second transverse tube 15 is driven to rotate through the transmission of the transmission mechanism, and the second transverse tube 15 drives the internal stirring tube 16 to rotate, thereby increasing the dissolution effect of sulfur dioxide.

[0031] A collecting funnel 23 is fixedly provided at the lower end of the dust filter box 2, a collecting pipe 24 is fixedly provided on the lower side wall of the collecting funnel 23, and a symmetrical adjusting knob 25 is threadedly provided on the lower side wall of the mounting bracket 1. A supporting plate 26 is laterally provided at the upper ends of the two adjusting knobs 25, a collecting box 27 is provided at the upper end of the supporting plate 26, and the lower end of the collecting pipe 24 is plugged into the upper side wall of the collecting box 27. Through the cooperation of the collecting funnel 23, the collecting pipe 24 and the collecting box 27, the waste water in the flushing process is collected for convenient centralized treatment. When the collecting box 27 needs to be disassembled, the adjusting knob 25 is turned to move the supporting plate 26 downward, and the supporting plate 26 drives the collecting box 27 at the upper end to move downward, thereby separating the collecting box 27 from the collecting pipe 24.

[0032] A sealing strip is fixedly provided on the lower side wall of the fixed frame 4, and the lower side wall of the sealing strip contacts the upper side wall at the connection of the two sealing plates 3. When the two sealing plates 3 are closed, the lower side wall of the sealing strip fits with the lower side walls of the two sealing plates 3 to increase the sealing effect, and the front and rear side walls of the two sealing plates 3 are both fitted with the front and rear ends of the inner walls of the dust filter box 2 to ensure the sealing effect.

[0033] A pull ring is fixedly provided on the side opposite to each other of the two sealing plates 3. When the flue gas is normally introduced, the two sealing plates 3 are closed. When the filter screen 5 needs to be flushed, the pull ring is pulled, and the pull ring drives the two sealing plates 3 to move to both ends, thereby facilitating the flushing liquid to flow down.

[0034] Working principle:

[0035] First, the industrial flue gas is discharged into the dust filter box 2 through the flue gas discharge pipe 10. The dust is filtered on the left side wall of the filter 5 through the filtering screen 5. The other flue gas is discharged into the sulfur dioxide absorption box 13 under the action of the exhaust fan 12, and is dissolved with the water discharged in advance, so as to absorb the sulfur dioxide. The absorbed gas is discharged through the flue gas discharge pipe 17. When the flue gas is discharged into the sulfur dioxide absorption box 13, the second transverse pipe 15 and the stirring pipe 16 are driven to rotate through the transmission mechanism to increase the dissolution effect of sulfur dioxide. After the filter 5 has been filtered for a long time, a large amount of dust will accumulate on its left side wall to block the mesh, so as to start the pump body 18. The pump body 18 discharges the liquid in the sulfur dioxide absorption box 13 through the drain pipe 20, the connecting pipe 6, the connecting pipe 7, the first transverse pipe 8, and the nozzle 9 to flush the filter 5. During the flushing process, the dust dissolves in water, so that not only does it not need to disassemble the filter 5 as in the past, but also the dust will not be raised in this way, and will not cause air pollution.

[0036] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flue gas dust removal device for air pollution protection, comprising a mounting bracket (1), characterized in that: A dust filter box (2) is fixedly arranged at the left end of the upper side wall of the mounting bracket (1), and sealing plates (3) are symmetrically slidably arranged on the left and right sides of the dust filter box (2), and a fixing frame (4) is longitudinally fixedly arranged at the upper ends of the two sealing plates (3) inside the dust filter box (2), and a filter screen (5) is fixedly arranged inside the fixing frame (4); A connecting pipe (6) is fixedly arranged inside the fixed frame (4), a symmetrical connecting pipe (7) is fixedly arranged on the front side wall of the connecting pipe (6), a first transverse pipe (8) is fixedly arranged between two opposite connecting pipes (7), a uniformly arranged nozzle (9) is fixedly arranged on one side of the first transverse pipe (8) close to the filter screen (5), and a liquid inlet mechanism is fixedly arranged on the upper side wall of the dust filter box (2); A flue gas discharge pipe (10) is fixedly arranged at the upper end of the left side wall of the dust filter box (2), an exhaust hood (11) is fixedly arranged at the right side wall of the dust filter box (2), an exhaust fan (12) is fixedly arranged inside the exhaust hood (11), a sulfur dioxide absorption box (13) is fixedly arranged at the right end of the upper side wall of the mounting bracket (1), a flue gas passage (14) is fixedly arranged at the right side wall of the exhaust hood (11), a second transverse pipe (15) is fixedly arranged at the other end of the flue gas passage (14), the left end of the second transverse pipe (15) extends to the interior of the sulfur dioxide absorption box (13), and the pipe wall of the second transverse pipe (15) is fixedly arranged with uniformly arranged stirring pipes (16), a transmission mechanism is fixedly arranged at the lower end of the second transverse pipe (15) on the right side wall of the sulfur dioxide absorption box (13), and a flue gas discharge pipe (17) is fixedly arranged at the left end of the upper side wall of the sulfur dioxide absorption box (13).

2. A flue gas dust removal device for air pollution protection according to claim 1, characterized in that: The liquid inlet mechanism comprises a pump body (18), the pump body (18) is fixedly connected to the upper side wall of the sulfur dioxide absorption box (13), a liquid inlet pipe (19) is fixedly provided on the lower side wall of the pump body (18), the lower end of the liquid inlet pipe (19) extends to the interior of the sulfur dioxide absorption box (13), and a liquid discharge pipe (20) is fixedly provided on the upper side wall of the pump body (18), the other end of the liquid discharge pipe (20) extends to the interior of the fixed frame (4) and is fixedly connected to the connecting pipe (6).

3. The flue gas dust removal equipment for air pollution protection according to claim 1, characterized in that: The transmission mechanism comprises a chassis, the chassis is fixedly connected to the right side wall of the sulfur dioxide absorption box (13), a motor (21) is fixedly arranged inside the chassis, a transmission rod (22) is fixedly arranged at the output end of the motor (21), a first belt pulley is sleeved on the right end of the transmission rod (22), a second belt pulley is sleeved on the outside of the second transverse tube (15), and the first belt pulley is rotatably connected to the second belt pulley via a belt.

4. The flue gas dust removal equipment for air pollution protection according to claim 1, characterized in that: A collecting funnel (23) is fixedly provided at the lower end of the interior of the dust filter box (2), a collecting pipe (24) is fixedly provided on the lower side wall of the collecting funnel (23), symmetrical adjusting knobs (25) are threadedly provided on the lower side wall of the mounting bracket (1), a supporting plate (26) is transversely provided at the upper ends of the two adjusting knobs (25), a collecting box (27) is provided at the upper end of the supporting plate (26), and the lower end of the collecting pipe (24) is plugged into the upper side wall of the collecting box (27).

5. The flue gas dust removal equipment for air pollution protection according to claim 1, characterized in that: A sealing strip is fixedly provided on the lower side wall of the fixed frame (4), and the lower side wall of the sealing strip is in contact with the upper side wall of the connection between the two sealing plates (3).

6. The flue gas dust removal equipment for air pollution protection according to claim 1, characterized in that: A pull ring is fixedly arranged on the side facing away from the two sealing plates (3).

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