Dry filter applied to waste gas purification pretreatment

Abstract

The utility model discloses a dry-type filter applied to waste gas purification pretreatment, which comprises a dry-type filter outer shell, and a first filter screen plate, a second filter screen plate and a third filter screen plate are inserted into one end of the dry-type filter outer shell. Cleaning assemblies are arranged on the top sides of the first filter screen plate, the second filter screen plate and the third filter screen plate; the cleaning assembly comprises a winding box fixed to the top end of the dry filter outer shell, a rotating shaft is rotationally connected into the winding box, a steel wire rope is wound around the outer wall of the rotating shaft, a driving box is connected to one end of the steel wire rope, a negative pressure fan is installed in the driving box, a concentration plate is fixedly connected to the bottom of the driving box, and the interior of the concentration plate is of a hollow structure. According to the device, the first filter screen plate, the second filter screen plate and the third filter screen plate can be automatically and rapidly cleaned, the maintenance difficulty of the first filter screen plate, the second filter screen plate and the third filter screen plate is reduced, and the maintenance efficiency of the first filter screen plate, the second filter screen plate and the third filter screen plate is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to exhaust gas purification technical field, concretely is a kind of dry filter applied to exhaust gas purification pretreatment. BACKGROUND

[0002] Exhaust gas purification pretreatment refers to a series of treatment measures taken before exhaust gas enters the main purification equipment in order to improve the efficiency of subsequent treatment, reduce pollutant load or protect the main purification equipment;The pretreatment step can significantly affect the performance and cost of the entire exhaust gas treatment system.

[0003] Dry filter is needed in exhaust gas purification pretreatment work, dry filter has filter screen filter and activated carbon filter etc., and the filter screen filter of prior art has good filtering effect, but maintenance difficulty is higher, needs to be frequently replaced and cleaned, and cleaning mode usually adopts manual cleaning, and cleaning effect is poor, which needs to be improved. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of dry filter applied to exhaust gas purification pretreatment to solve the problem of poor cleaning efficiency of dry filter screen filter proposed in the above background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of dry filter applied to exhaust gas purification pretreatment, including dry filter shell body, first filter screen plate, second filter screen plate and third filter screen plate are inserted in one end of dry filter shell body, the top side of first filter screen plate, second filter screen plate and third filter screen plate is all provided with cleaning assembly;

[0006] Cleaning assembly includes winding box fixed at the top end of dry filter shell body, rotating shaft is rotatably connected in winding box, steel wire rope is wound on the outer wall of rotating shaft, one end of steel wire rope is connected with drive box, negative pressure fan is installed in drive box, the bottom of drive box is fixedly connected with concentrating plate, the inside of concentrating plate is hollow structure, collecting pipe is connected at the top of concentrating plate, one end of collecting pipe is connected with drive box, one-way valve is provided on collecting pipe, through hole is formed in one side of concentrating plate, cleaning brush is fixedly connected on one side of concentrating plate, cleaning brush and the position of through hole are staggered, and cleaning brush is attached to the surface of first filter screen plate.

[0007] Preferably, a plurality of sliding grooves are formed in the inside of dry filter shell body, and the plurality of sliding grooves are located on one side of first filter screen plate, second filter screen plate and third filter screen plate respectively, and sliding blocks are arranged at both ends of concentrating plate, the sliding blocks are inserted into the sliding grooves, and concentrating plate and dry filter shell body are slidably connected.

[0008] Preferably, drive motor is fixedly connected to one end of winding box, and one end of drive motor shaft is connected to one end of rotating shaft.

[0009] Preferably, the driving box is provided with openings at the upper and lower ends, and a dust collecting box is arranged in the driving box, and the lower end of the dust collecting box is provided with an opening, and the lower end opening of the dust collecting box corresponds to the lower end opening of the driving box.

[0010] Preferably, the driving box and the dust collecting box are provided with intercepting nets at the top, and the negative pressure fan is arranged inside the intercepting net.

[0011] Preferably, the dry filter outer shell is connected with an air inlet pipe at one end, and is connected with an air outlet pipe at the other end, and the air outlet pipe is provided with a drainage fan at one end.

[0012] Preferably, the first filter screen plate, the second filter screen plate and the third filter screen plate are fixedly connected with sealing pads at one end.

[0013] Compared with the prior art, the dry filter structure has the advantages that:

[0014] (1) The device can realize automatic and rapid cleaning of the first filter screen plate, the second filter screen plate and the third filter screen plate, reduce the maintenance difficulty of the first filter screen plate, the second filter screen plate and the third filter screen plate, and improve the maintenance efficiency of the first filter screen plate, the second filter screen plate and the third filter screen plate.

[0015] (2) The device is provided with an automatic lifting concentrating plate at the top side of the first filter screen plate, the second filter screen plate and the third filter screen plate, the cleaning bristles on one side of the concentrating plate are attached to the outer wall of the first filter screen plate, the second filter screen plate and the third filter screen plate, and the concentrating plate is provided with a through hole on one side, and the concentrating plate is connected with the negative pressure fan, so that the dust generated in the cleaning process can be quickly collected, and the cleaning efficiency is improved.

[0016] (3) The device is provided with sliding blocks at the front and rear ends of the concentrating plate, and the sliding blocks are connected with the inner wall sliding grooves of the dry filter outer shell, so that the stability of the movement of the concentrating plate is guaranteed, and the cleaning bristles on one side of the concentrating plate are tightly contacted with the surfaces of the first filter screen plate, the second filter screen plate and the third filter screen plate. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a dry filter structure applied to waste gas purification pretreatment of the utility model;

[0018] Figure 2 It is a dry filter applied to waste gas purification pretreatment of the utility model; Figure 1 It is an enlarged view of A in the figure;

[0019] Figure 3 It is a side view of the first filter screen plate of the dry filter applied to waste gas purification pretreatment of the utility model;

[0020] Figure 4 It is the centralized plate right view of the dry filter applied to the exhaust gas purification pretreatment of the utility model;

[0021] Figure 5 It is the winding box sectional view of the dry filter applied to the exhaust gas purification pretreatment of the utility model.

[0022] In the drawing: 1, air inlet pipe; 2, dry filter outer shell; 3, cleaning assembly; 31, drive motor; 32, winding box; 33, negative pressure fan; 34, check valve; 35, cleaning brush; 36, steel wire rope; 37, drive box; 38, intercepting net; 39, dust collecting box; 310, collecting pipe; 311, centralized plate; 312, rotating shaft; 4, air outlet pipe; 5, drainage fan; 6, first filter screen plate; 7, second filter screen plate; 8, third filter screen plate; 9, sealing gasket. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1-5This utility model provides a technical solution: a dry filter for pretreatment of exhaust gas purification, comprising a dry filter housing 2, with a first filter plate 6, a second filter plate 7, and a third filter plate 8 inserted at one end of the dry filter housing 2. Multiple sliding grooves are formed inside the dry filter housing 2, located on one side of the first filter plate 6, the second filter plate 7, and the third filter plate 8 respectively. A slider is provided at both ends of a concentrator plate 311, which is inserted into the sliding groove. The concentrator plate 311 and the dry filter housing 2 are slidably connected. This structure facilitates the concentrated collection of dust through the concentrator plate 311. An air inlet pipe 1 is connected to one end of the dry filter housing 2, and the other end of the dry filter housing 2... An air outlet pipe 4 is connected, and a flow-guiding fan 5 is installed at one end of the air outlet pipe 4. This structure ensures the airflow speed and filtration effect through the flow-guiding fan 5. A sealing gasket 9 is fixedly connected to one end of the first filter plate 6, the second filter plate 7, and the third filter plate 8. This structure allows the first filter plate 6, the second filter plate 7, and the third filter plate 8 to be intercepted on the outer wall of the dry filter housing 2 after being inserted into the dry filter housing 2, thereby blocking and sealing the gap between the dry filter housing 2 and the first filter plate 6, the second filter plate 7, and the third filter plate 8. A cleaning component 3 is provided on the top side of the first filter plate 6, the second filter plate 7, and the third filter plate 8.

[0025] Cleaning component 3 includes a winding box 32 fixed to the top of the dry filter housing 2. One end of the winding box 32 is fixedly connected to a drive motor 31, and one end of the drive motor 31 shaft is connected to one end of a rotating shaft 312. This structure allows the drive motor 31 to drive the rotating shaft 312 to rotate automatically. During rotation, the rotating shaft 312 can drive the wire rope 36 to wind up or unwind. When the wire rope 36 is unwinding, the height of the drive box 37, dust collection box 39, and concentrating plate 311 connected to the lower end of the wire rope 36 decreases. The concentrating plate 311 can lower the height of the dust collection box 37, dust collection box 39, and concentrating plate 311. The surfaces of the first filter plate 6, the second filter plate 7, and the third filter plate 8 are cleaned of dust. Openings are provided at both the top and bottom of the drive box 37, and a dust collection box 39 is inserted inside the drive box 37. An opening is located at the bottom of the dust collection box 39, corresponding to the lower opening of the drive box 37. This structure allows the dust collection box 39 to collect dust from the air, facilitating cleaning. An intercepting net 38 is installed on the top of both the drive box 37 and the dust collection box 39, and a negative pressure fan 33 is located inside the intercepting net 38. This structure uses the intercepting net 38 to... 8 can filter dust in the air, preventing dust from adhering to the surface of the negative pressure fan 33 and affecting its service life; a rotating shaft 312 is rotatably connected inside the winding box 32, and a steel wire rope 36 is wound around the outer wall of the rotating shaft 312. The lower end of the steel wire rope 36 is fixed to the drive box 37 by screws, and one end of the steel wire rope 36 is connected to the drive box 37. The negative pressure fan 33 is installed inside the drive box 37, and a concentrating plate 311 is fixedly connected to the bottom of the drive box 37. The concentrating plate 311 has a hollow structure inside, and a collection device is connected to the top of the concentrating plate 311. The collection pipe 310 is connected at one end to the drive box 37. A one-way valve 34 is provided on the collection pipe 310. A through hole is opened on one side of the concentration plate 311. A cleaning brush 35 is fixedly connected to one side of the concentration plate 311. The cleaning brush 35 is staggered with the through hole and is attached to the surface of the first filter screen plate 6. The dry filter housing 2 of this device has an opening at the position corresponding to the drive box 37. A removable intercepting net is installed in the opening to facilitate the removal of the drive box 37 from the top of the dry filter housing 2 for cleaning and maintenance.

[0026] Working principle: When using this dry filter for pretreatment of exhaust gas purification, if it is necessary to clean the first filter plate 6, the second filter plate 7, and the third filter plate 8, the drive motor 31 can be started. The drive motor 31 drives the rotating shaft 312 to rotate. When the rotating shaft 312 rotates, it can release the wire rope 36. At this time, the drive box 37 and the concentrating plate 311 at the lower end of the wire rope 36 automatically descend. During the descent, the cleaning bristles 35 on the inner side of the concentrating plate 311 come into contact with and rub against the surfaces of the first filter plate 6, the second filter plate 7, and the third filter plate 8, thereby scraping the dust on the first filter plate 6, the second filter plate 7, and the third filter plate 8 from bottom to top. During the scraping process, the dust enters the interior of the concentrating plate 311 through the through hole on the inner side of the concentrating plate 311 and then enters the drive box 37 through the collection pipe 310 and is collected inside the dust collection box 39.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dry filter applied to exhaust gas purification pretreatment, comprising a dry filter outer housing (2), characterized in that: The first filter screen plate (6), the second filter screen plate (7) and the third filter screen plate (8) are arranged at one end of the dry filter shell (2), and the top side of each of the first filter screen plate (6), the second filter screen plate (7) and the third filter screen plate (8) is provided with a cleaning assembly (3). The cleaning assembly (3) comprises a winding box (32) fixed at the top end of the dry filter shell (2), a rotating shaft (312) rotatably connected in the winding box (32), a steel wire rope (36) wound on the outer wall of the rotating shaft (312), a driving box (37) connected to one end of the steel wire rope (36), a negative pressure fan (33) arranged in the driving box (37), a concentrating plate (311) fixedly connected to the bottom of the driving box (37), the concentrating plate (311) being in a hollow structure, a collecting pipe (310) connected to the top of the concentrating plate (311), the collecting pipe (310) being connected to the driving box (37) at one end, a one-way valve (34) arranged on the collecting pipe (310), a through hole formed in one side of the concentrating plate (311), and cleaning brush hairs (35) fixedly connected to one side of the concentrating plate (311), the cleaning brush hairs (35) being arranged staggeredly with the through hole, and the cleaning brush hairs (35) being attached to the surface of the first filter screen plate (6).

2. The dry filter for exhaust gas purification pretreatment according to claim 1, characterized by: A plurality of sliding grooves are formed in the dry filter shell (2), and the plurality of sliding grooves are respectively arranged at one side of the first filter screen plate (6), the second filter screen plate (7) and the third filter screen plate (8), and the two ends of the concentrating plate (311) are provided with sliding blocks, the sliding blocks being arranged in the sliding grooves, and the concentrating plate (311) and the dry filter shell (2) being in sliding connection.

3. The dry filter for exhaust gas purification pretreatment according to claim 1, characterized by: One end of the winding box (32) is fixedly connected with a driving motor (31), and one end of the shaft of the driving motor (31) is connected with one end of the rotating shaft (312).

4. The dry filter for exhaust gas purification pretreatment according to claim 1, characterized by: Openings are formed in the upper and lower ends of the driving box (37), a dust collecting box (39) is arranged in the driving box (37), an opening is formed in the lower end of the dust collecting box (39), and the opening in the lower end of the dust collecting box (39) corresponds to the opening in the lower end of the driving box (37).

5. The dry filter for exhaust gas purification pretreatment according to claim 1, characterized by: Interception nets (38) are arranged on the top of the driving box (37) and the dust collecting box (39), and the negative pressure fan (33) is arranged on the inner side of the interception net (38).

6. The dry filter for exhaust gas purification pretreatment according to claim 1, characterized by: One end of the dry filter shell (2) is connected with an air inlet pipe (1), the other end of the dry filter shell (2) is connected with an air outlet pipe (4), and one end of the air outlet pipe (4) is provided with a drainage fan (5).

7. The dry filter for exhaust gas purification pretreatment according to claim 6, characterized by: One end of each of the first filter screen plate (6), the second filter screen plate (7) and the third filter screen plate (8) is fixedly connected with a sealing gasket (9).

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