Dedusting and filtering device for tail gas purification

Abstract

The dedusting and filtering device comprises an air inlet cylinder and a filtering cylinder, the upper end and the lower end of the air inlet cylinder are open, a spiral shell is assembled at the bottom end of the air inlet cylinder, an air inlet pipe is horizontally and fixedly communicated with the bottom of the outer circumferential face of the air inlet cylinder, and the filtering cylinder is vertically and fixedly communicated with the top end of the air inlet cylinder. A top cover is fixed to the top end of the filter cartridge, a top plate is rotationally connected to the bottom face of the top cover, a rotating shaft is vertically fixed to the middle of the bottom face of the top plate, a net barrel is vertically fixed to the bottom end face of the top plate, a cloth barrel is fixed to the inner wall of the net barrel, and a plurality of pore plates are evenly fixed to the outer circumferential face of the rotating shaft. And hammer heads are arranged at the end parts of the plurality of pore plates. The problem that dust accumulated on an existing cleaning component affects the tail gas circulation rate, so that tail gas is accumulated in the gas inlet pipe, and the later tail gas filtering efficiency is affected is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas filtering devices, in particular to a dust removal filtering device for tail gas purification. Background Art

[0002] Submerged arc furnace is mainly used for reducing and smelting raw materials such as ore, carbonaceous reducing agent and solvent. Submerged arc furnace will produce a large amount of dusty exhaust gas when smelting ore during heating. The exhaust gas dust needs to be filtered through a dust removal net to remove the dust in the exhaust gas and ensure the cleanliness of the exhaust gas emission.

[0003] The existing announcement number is CN206304512U, and the name is a multi-stage dust removal and filtering device for exhaust gas from an electric arc furnace. By setting a first filter box, a second filter box, a dust removal cloth, a filter net, filter cotton and a filter plate, the exhaust gas generated by the electric arc furnace can be fully filtered and absorbed, and the water in the second filter box can also be filtered, thereby reducing the pollution of the exhaust gas of the electric arc furnace to the atmosphere and effectively improving the air quality.

[0004] However, the exhaust gas discharged from the above-mentioned electric arc furnace is filtered and dispersed through dust removal cloth, filter net, filter cotton and filter plate in turn to remove dust in the exhaust gas. Therefore, the dust removal cloth, filter net, filter cotton and filter plate will accumulate a lot of dust. The dust accumulated in the components due to lack of cleaning will affect the exhaust gas circulation rate, causing the exhaust gas to accumulate in the intake pipe, thereby affecting the exhaust gas filtration efficiency in the later stage. Utility Model Content

[0005] The utility model aims to provide a dust removal and filtering device for tail gas purification, aiming to improve the above-mentioned problems.

[0006] The utility model is achieved in this way:

[0007] A dust removal and filtering device for exhaust gas purification comprises an air intake cylinder and a filter cylinder, the upper and lower ends of the air intake cylinder are both opened, and the bottom end of the air intake cylinder is assembled with a spiral shell, the bottom of the outer circumferential surface of the air intake cylinder is horizontally connected and fixed with an air intake pipe, the top of the air intake cylinder is vertically connected and fixed with a filter cylinder, the top of the filter cylinder is fixed with a top cover, and the bottom surface of the top cover is rotatably connected with a top plate, the top plate is rotatably connected to the top cover, and a rotating shaft is vertically fixed to the middle part of the bottom surface of the top plate, a mesh cylinder is vertically fixed on the bottom end surface of the top plate, and a cloth cylinder is fixed on the inner wall of the mesh cylinder, a plurality of perforated plates are evenly fixed on the outer circumferential surface of the rotating shaft, and hammer heads are arranged at the ends of the plurality of perforated plates, one end of the hammer head is fixedly connected with a rotating plate by a chain, and the rotating plate is rotatably connected to the perforated plate, the top of the outer circumference of the filter cylinder is horizontally connected and fixed with an exhaust pipe, and an air pump is connected and assembled on the exhaust pipe.

[0008] Furthermore, a filter screen is horizontally fixed inside the air intake cylinder, and an internal thread is provided at the bottom end of the inner wall of the air intake cylinder, and the internal thread on the air intake cylinder is assembled and connected with the screw shell thread.

[0009] Furthermore, two support plates are symmetrically arranged on both sides of the outside of the air intake cylinder, and springs are vertically fixed to the top ends of the two support plates, and the top ends of the springs are fixed to the outer wall of the air intake cylinder.

[0010] Furthermore, a fixing screw is assembled on the vertical thread at the bottom end of the support plate, and a vibration motor is vertically fixed on the outer wall of the filter cartridge.

[0011] Furthermore, a rotating frame is horizontally fixed to the inner bottom end of the filter cartridge, a rotating rod is vertically fixed to the bottom end of the rotating shaft, and the rotating rod is rotatably connected to the rotating frame.

[0012] Furthermore, a motor is vertically fixed on the top surface of the top cover, and an output end of the motor is fixed on the top of the top plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: during use, the exhaust gas discharged from the electric arc furnace is introduced into the air intake cylinder from the air intake pipe, the air pump on the exhaust pipe on the filter cylinder is started, and the exhaust gas is drawn to flow upward into the filter cylinder. The exhaust gas is filtered through the cloth cylinder and the mesh cylinder to remove dust in the exhaust gas. The exhaust gas enters and passes through the cloth cylinder and the mesh cylinder and is discharged through the exhaust pipe. The dust filtered inside the cloth cylinder and the mesh cylinder falls downward under the action of gravity. In order to ensure that the cloth cylinder and the mesh cylinder can effectively remove the dust adhering to different inner walls, the motor is started to drive the top plate to rotate, and the rotating shaft is driven to rotate. The rotating hammer head hits the cloth cylinder outward under the action of centrifugal force, thereby accelerating the falling of the adhering dust, effectively ensuring the filtering effect of the cloth cylinder and the mesh cylinder, and ensuring the circulation rate of the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the filter cartridge in the decomposed state in the embodiment of the utility model;

[0018] Figure 4It is a schematic diagram of the structure of the net cylinder in the decomposed state in the embodiment of the utility model;

[0019] Figure 5 It is a schematic structural diagram of the air intake cylinder in the exploded state in the embodiment of the utility model.

[0020] In the figure: 1. air intake cylinder; 11. filter screen; 12. internal thread; 13. screw shell; 14. spring; 15. support plate; 16. air intake pipe; 17. fixing screw; 2. filter cylinder; 21. top cover; 211. motor; 22. rotating frame; 23. exhaust pipe; 231. air pump; 24. top plate; 25. rotating shaft; 251. rotating rod; 252. orifice plate; 26. rotating plate; 27. hammer head; 271. chain; 28. cloth cylinder; 29. ​​mesh cylinder; 3. vibration motor. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are 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 making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0022] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, a dust removal and filtering device for exhaust gas purification includes an air intake cylinder 1 and a filter cylinder 2. The upper and lower ends of the air intake cylinder 1 are both opened, and a spiral shell 13 is assembled at the bottom end of the air intake cylinder 1. The bottom of the outer circumferential surface of the air intake cylinder 1 is horizontally connected and fixed with an air intake pipe 16, and the top of the air intake cylinder 1 is vertically connected and fixed with the filter cylinder 2. The top of the filter cylinder 2 is fixed with a top cover 21, and a top plate 24 is rotatably connected to the bottom surface of the top cover 21. The top plate 24 is rotatably connected to the top cover 21, and the middle of the bottom surface of the top plate 24 is vertically fixed. There is a rotating shaft 25, a net cylinder 29 is vertically fixed on the bottom end surface of the top plate 24, and a cloth cylinder 28 is fixed on the inner wall of the net cylinder 29, a plurality of perforated plates 252 are evenly fixed on the outer circumferential surface of the rotating shaft 25, and hammer heads 27 are arranged at the ends of the plurality of perforated plates 252, one end of the hammer head 27 is fixedly connected to a rotating plate 26 through a chain 271, and the rotating plate 26 is rotatably connected to the perforated plate 252, an exhaust pipe 23 is horizontally connected and fixed to the top of the outer circumference of the filter cylinder 2, and an air pump 231 is connected and assembled on the exhaust pipe 23, A motor 211 is vertically fixed on the top surface of the top cover 21, and the output end of the motor 211 is fixed on the top of the top plate 24. During use, the exhaust gas discharged from the submerged arc furnace is introduced into the intake tube 1 from the intake pipe 16, and the air pump 231 on the exhaust pipe 23 on the filter tube 2 is started to draw the exhaust gas upward into the filter tube 2. The exhaust gas is filtered through the cloth tube 28 and the net tube 29 to remove dust in the exhaust gas. The exhaust gas enters the cloth tube 28 and the net tube 29 and is discharged through the exhaust pipe 23, filtering the dust inside the cloth tube 28 and the net tube 29. It falls downward under the action of gravity. In order to ensure that the cloth cylinder 28 and the mesh cylinder 29 filter effectively remove the dust adhering to the different inner walls of 28, the start motor 211 drives the top plate 24 to rotate, drives the rotating shaft 25 to rotate, and rotates the hammer head 27 to hit the cloth cylinder 28 outward under the action of centrifugal force, so as to accelerate the falling of the adhering dust, and utilizes the centrifugal rotating hammer head 27 to hit the cloth cylinder 28, and utilizes the hammer head 27 to hit the cloth cylinder 28 and shake it down, which effectively ensures the filtering effect of the cloth cylinder 28 and the mesh cylinder 29, and ensures the circulation rate of the exhaust gas.

[0023] See also Figure 5 A filter screen 11 is fixed horizontally inside the air intake cylinder 1, and an internal thread 12 is provided at the bottom end of the inner wall of the air intake cylinder 1, and the internal thread 12 on the air intake cylinder 1 is threadedly assembled and connected with the spiral shell 13. Two support plates 15 are symmetrically arranged on both sides of the outside of the air intake cylinder 1, and springs 14 are vertically fixed to the tops of the two support plates 15, and the tops of the springs 14 are fixed to the outer wall of the air intake cylinder 1, and the bottom ends of the support plates 15 are vertically threadedly assembled with fixing screws 17. A vibration motor 3 is vertically fixed to the outer wall of the filter cylinder 2. In order to ensure the exhaust gas circulation rate during use, the vibration motor 3 is started to drive the air intake cylinder 1 to vibrate, and the air intake cylinder 1 is deformed under the vibration of the spring 14. The deformation causes the spring 14 to deform, causing the air intake cylinder 1 to vibrate, thereby causing the vibration to cause the dust filtered by the filter screen 11 to fall and fall into the spiral shell 13, thereby facilitating the dumping of the dust falling by the vibration.

[0024] See also Figure 3 and Figure 4 A rotating frame 22 is horizontally fixed to the inner bottom end of the filter cartridge 2, a rotating rod 251 is vertically fixed to the bottom end of the rotating shaft 25, and the rotating rod 251 is rotatably connected to the rotating frame 22, and the rotating frame 22 is used to guide the rotating trajectory of the rotating rod 251.

[0025] Working principle: During use, the exhaust gas discharged from the electric arc furnace is introduced into the intake tube 1 from the intake pipe 16, and the air pump 231 on the exhaust pipe 23 on the filter tube 2 is started to draw the exhaust gas upward into the filter tube 2. The exhaust gas is filtered through the cloth tube 28 and the mesh tube 29 to remove dust in the exhaust gas. The exhaust gas enters the cloth tube 28 and the mesh tube 29 and is discharged through the exhaust pipe 23. The dust filtered inside the cloth tube 28 and the mesh tube 29 falls downward under the action of gravity. In order to ensure that the cloth tube 28 and the mesh tube 29 filter and effectively remove the dust adhering to the inner walls of different 28, the motor 211 is started to drive the top plate 24 to rotate, and the rotating shaft 25 is driven to rotate. The rotating hammer head 27 hits the cloth tube 28 outward under the action of centrifugal force to accelerate the falling of the adhering dust.

[0026] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A dust removal and filtering device for exhaust gas purification, characterized in that: The invention comprises an air intake cylinder (1) and a filter cylinder (2), wherein both upper and lower ends of the air intake cylinder (1) are open, and a spiral shell (13) is assembled at the bottom end of the air intake cylinder (1), an air intake pipe (16) is horizontally connected and fixed to the bottom of the outer circumferential surface of the air intake cylinder (1), and a filter cylinder (2) is vertically connected and fixed to the top end of the air intake cylinder (1), a top cover (21) is fixed to the top end of the filter cylinder (2), and a top plate (24) is rotatably connected to the bottom surface of the top cover (21), and a rotating shaft (25) is vertically fixed to the middle of the bottom surface of the top plate (24), and the top plate (24) is rotatably connected to the top cover (21), and a rotating shaft (25) is vertically fixed to the middle of the bottom surface of the top plate (24), and the top plate (24) is rotatably connected to the top cover (21). A net cylinder (29) is vertically fixed on the bottom end surface of the top plate (24), and a cloth cylinder (28) is fixed on the inner wall of the net cylinder (29); a plurality of perforated plates (252) are evenly fixed on the outer circumferential surface of the rotating shaft (25), and hammer heads (27) are arranged at the ends of the plurality of perforated plates (252); one end of the hammer head (27) is fixedly connected to a rotating plate (26) via a chain (271), and the rotating plate (26) is rotatably connected to the perforated plate (252); an exhaust pipe (23) is horizontally connected and fixed to the top of the outer circumference of the filter cylinder (2), and an air pump (231) is connected and assembled on the exhaust pipe (23).

2. A dust removal and filtering device for exhaust gas purification according to claim 1, characterized in that: A filter screen (11) is horizontally fixed inside the air intake cylinder (1), and an internal thread (12) is provided at the bottom end of the inner wall of the air intake cylinder (1), and the internal thread (12) on the air intake cylinder (1) is threadedly assembled and connected with the screw shell (13).

3. A dust removal and filtering device for exhaust gas purification according to claim 2, characterized in that: Two support plates (15) are symmetrically arranged on both sides of the outside of the air intake cylinder (1), and springs (14) are vertically fixed to the top ends of the two support plates (15), and the top ends of the springs (14) are fixed to the outer wall of the air intake cylinder (1).

4. A dust removal and filtering device for exhaust gas purification according to claim 3, characterized in that: A fixing screw (17) is vertically threadedly assembled at the bottom end of the support plate (15), and a vibration motor (3) is vertically fixed on the outer wall of the filter cartridge (2).

5. The dust removal and filtering device for exhaust gas purification according to claim 1, characterized in that: A rotating frame (22) is horizontally fixed to the inner bottom end of the filter cartridge (2), a rotating rod (251) is vertically fixed to the bottom end of the rotating shaft (25), and the rotating rod (251) is rotatably connected to the rotating frame (22).

6. The dust removal and filtering device for exhaust gas purification according to claim 1, characterized in that: A motor (211) is vertically fixed on the top surface of the top cover (21), and an output end of the motor (211) is fixed on the top of the top plate (24).

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