CN212141811U - Pulse bag-type dust collector - Google Patents

Abstract

The utility model discloses a pulse bag dust collector, which comprises a dust removal box, a plate frame, a first bolt, a second bolt and an ash unloader. A support frame and a cone-shaped ash hopper are arranged at the bottom of the dust-removal box, and the cone-shaped ash hopper is arranged at the bottom of the dust removal box. The bucket is arranged on the inner side of the support frame, and the lower end of the conical ash hopper is provided with a rotary valve, the ash unloader is arranged under the conical ash hopper, the top of the dust box is penetrated with a ventilation pipe, and the left and right sides of the ventilation pipe are arranged on both sides. There is a pulse valve, the left end of the ventilation pipe is connected with the air compressor, and the air compressor is arranged on the left side of the dust removal box, and the right end of the ventilation pipe is connected with the exhaust fan. The pulse bag filter is provided with a plate frame, a filter cloth and a pressure plate. The second bolt is rotated, and the second bolt pushes the pressure plate and the filter cloth to stick to the plate frame, so that the filter cloth is fixed on the plate frame, so as to prevent the exhaust fan from pumping through the ventilation pipe. During the air, the two layers of filter cloth are attached under the action of negative pressure, which leads to a smaller temperature of the air passage area of the filter cloth, and improves the filtration efficiency of the filter cloth.

Description

A pulse bag filter

technical field

The utility model relates to the technical field of dust removal devices for waste gas treatment systems, in particular to a pulse bag filter.

Background technique

The dust collector is a device that uses inertial collision, mainly relies on diffusion and screening to capture fine dust, and separates the dust layer from the flue gas through the filter material. The performance of the dust collector is expressed in terms of the amount of gas that can be handled, the resistance loss when the gas passes through the dust collector, and the dust removal efficiency. At the same time, the price, operation and maintenance costs, service life and difficulty of operation and management of the dust collector are also important factors to consider its performance.

The bag filter is a kind of equipment to deal with the dust-containing pollutants in the gas discharge. It can effectively reduce the discharge of dust particles in the gas, and is widely used in many industries. The working mechanism of the bag filter is that the dust-laden gas passes through the filter material, and the dust particles are filtered, and the filter material mainly has a certain filtering effect to capture the coarse dust.

The Chinese Patent Publication No. CN102784526A discloses a bag filter, comprising: a box body with a purified gas outlet; a plurality of dust removal bags arranged in the box body; an ash hopper arranged at the bottom of the box body, which has dust-containing gas The inlet; also includes a partition that is arranged in the box and divides the box space into at least two mutually isolated dust removal areas, each dust removal area is communicated with the ash hopper through an on-off valve, and the bottom of the ash hopper is provided with an ash discharge In this dust collector, multiple dust removal bags are separated, which is not conducive to the circular injection of dust between different dust removal bags, and this type of dust collector only uses the adsorption effect of dust removal bags. Graphite has limited exhaust gas treatment capacity.

SUMMARY OF THE INVENTION

The purpose of this utility model is to provide a pulse bag filter, so as to solve the problem of separating multiple dust bags in the dust remover proposed in the above background technology, which is not conducive to the circulating spray of dust between different dust bags, and this kind of dust removal The filter only uses the adsorption effect of the dust bag, and has limited treatment capacity for some waste gas containing conductive dust, such as graphite-containing waste gas.

In order to achieve the above purpose, the utility model provides the following technical solutions: a pulse bag filter, including a dust box, a plate frame, a first bolt, a second bolt and a dust unloader, and the bottom of the dust box is provided with a support frame and a cone The conical ash hopper is arranged on the inner side of the support frame, and the lower end of the conical ash hopper is provided with a rotary valve. The left and right sides of the ventilation pipe are provided with pulse valves, the left end of the ventilation pipe is connected with the air compressor, and the air compressor is arranged on the left side of the dust box, the right end of the ventilation pipe is connected with the exhaust fan, and the exhaust fan is set On the right side of the dust box, the plate frame is arranged inside the dust box, and the upper end of the plate frame penetrates the lower side of the ventilation pipe, the first bolt passes through the plate frame and is connected to the inner wall of the dust box, and the left and right sides of the plate frame are arranged on both sides. There is a filter cloth, and the side of the filter cloth away from the plate frame is arranged on the pressure plate, the second bolt penetrates through the pressure plate and the filter cloth is connected with the plate frame, the front side of the dust box is provided with an air inlet, and the inner wall of the front side of the dust box is A deflector is arranged on the upper side, and meanwhile, the deflector is arranged on the right side of the air inlet, and a sealing door is arranged on the rear side of the dust box.

Preferably, a cone-shaped ash hopper is arranged below the two plates in the dust box.

Preferably, an observation window is provided on the front side of the conical ash hopper, and the conical ash hopper is arranged in an inverted cone shape.

Preferably, the top of the plate frame is sealedly connected to the ventilation pipe through a first bolt.

Preferably, conductive fibers are provided in the filter cloth, and the conductive fibers are electrically connected to the ground through the dust removal box and the support frame.

Preferably, the second bolts are evenly arranged on the pressing plate, and the connection between the second bolts and the plate frame is screw connection.

Compared with the prior art, the beneficial effect of the utility model is: the pulse bag filter,

(1) A cone-shaped ash hopper, a pulse valve and an air compressor are provided. Close the pulse valve on the right side of the ventilation pipe and open the pulse valve on the left side of the ventilation pipe. The air compressor sprays air into the plate frame through the ventilation pipe to make the filter The loose dust on the cloth is convenient for the dust to escape from the filter cloth and fall into the cone-shaped ash hopper, which is convenient for the operator to collect later;

(2) A plate frame, filter cloth and pressure plate are provided, and the second bolt is rotated, and the second bolt pushes the pressure plate and the filter cloth against the plate frame, so that the filter cloth is fixed on the plate frame, so as to prevent the exhaust fan from pumping through the ventilation pipe. The layer of filter cloth is attached under the action of negative pressure, which leads to a smaller temperature of the air passage area of the filter cloth, and improves the filtration efficiency of the filter cloth;

(3) Conductive fibers are provided, and conductive fibers are provided in the filter cloth. The conductive fibers are electrically connected to the earth through the dust removal box and the support frame, so that the conductive fibers are electrostatically charged, which facilitates electrostatic adsorption of graphite dust and improves the filtering effect of the filter cloth.

Description of drawings

Fig. 1 is the front view sectional structure schematic diagram of the utility model;

Fig. 2 is the front view structure schematic diagram of the utility model;

Fig. 3 is the right side view sectional structure schematic diagram of the utility model;

FIG. 4 is a schematic view of the top-view cross-sectional structure of the pallet of the utility model;

Figure 5 is a schematic diagram of the structure of the filter cloth of the present invention.

In the picture: 1. Dust removal box, 2. Support frame, 3. Conical ash hopper, 4. Observation window, 5. Breathing pipe, 6. Pulse valve, 7. Air compressor, 8. Exhaust fan, 9. Plate frame , 10, first bolt, 11, filter cloth, 12, pressure plate, 13, second bolt, 14, air inlet, 15, deflector, 16, sealing door, 17, conductive fiber, 18, rotary valve, 19, Unloader.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to Figures 1-5, the present utility model provides a technical solution: a pulse bag filter, as shown in Figure 1, Figure 2 and Figure 3, the bottom of the dust box 1 is provided with a support frame 2 and a cone-shaped ash hopper 3 , and the conical ash hopper 3 is arranged on the inner side of the support frame 2, at the same time a rotary valve 18 is arranged at the lower end of the conical ash hopper 3, and a conical ash hopper 3 is arranged under the two plates 9 in the dust box 1, which is convenient for the plate frame 9. The blocked dust falls into the cone-shaped ash hopper 3. An observation window 4 is arranged on the front side of the cone-shaped ash hopper 3, and the cone-shaped ash hopper 3 is arranged in an inverted cone shape, which is convenient for observing the accumulation of dust inside the cone-shaped ash hopper 3. , the ash unloader 19 is arranged below the conical ash hopper 3, the top of the dust box 1 has a ventilation pipe 5, and the left and right sides of the ventilation pipe 5 are provided with pulse valves 6, and the left end of the ventilation pipe 5 is connected with the air compressor 7 , and the air compressor 7 is arranged on the left side of the dust box 1, the right end of the ventilation pipe 5 is connected with the exhaust fan 8, and the exhaust fan 8 is arranged on the right side of the dust box 1, the plate frame 9 is arranged inside the dust box 1, and the plate frame The upper end of 9 penetrates the lower side of the ventilation pipe 5, and the top of the plate frame 9 is sealedly connected to the ventilation pipe 5 through the first bolt 10, preventing dust from entering the interior of the ventilation pipe 5 through the gap at the connection.

As shown in FIG. 1 , FIG. 4 and FIG. 5 , the first bolt 10 penetrates through the plate frame 9 and is connected to the inner wall of the dust box 1 . The left and right sides of the plate frame 9 are provided with filter cloths 11 , and the filter cloths 11 are far away from the edge of the plate frame 9 . One side is set on the pressing plate 12, and the filter cloth 11 is provided with conductive fibers 17, and the conductive fibers 17 are electrically connected to the earth through the dust removal box 1 and the support frame 2, so that the conductive fibers 17 are electrostatically charged, which is convenient for the conductive fibers 17 to absorb graphite dust, The second bolts 13 penetrate through the pressure plate 12 and the filter cloth 11 and are connected to the plate frame 9. The second bolts 13 are evenly arranged on the pressure plate 12, and the connection between the second bolts 13 and the plate frame 9 is screw connection. 13. Make the pressure plate 12 push the filter cloth 11 to be fixed on the plate frame 9, the front side of the dust box 1 is provided with an air inlet 14, and the inner wall of the front side of the dust box 1 is provided with a deflector 15. On the right side of the tuyere 14 and the rear side of the dust box 1 is provided a sealing door 16 .

Working principle: When using the pulse bag filter, first connect the external power supply, start the exhaust fan 8, and the exhaust fan 8 extracts the air in the dust box 1 through the ventilation pipe 5, and the air with dust passes through under the action of negative pressure. The air inlet 14 enters the inside of the dust box 1, and the deflector 15 plays the role of changing the wind direction and extending the length of air circulation. The air with dust passes through the filter cloth 11, and the filter cloth 11 blocks the dust, so that the clean air passes through the ventilation pipe 5 right The exhaust fan 8 on the side leaves the dust removal box 1, and the filter cloth 11 is woven by conductive fibers 17, and the conductive fibers 17 are electrically connected to the ground through the dust removal box 1 and the support frame 2, so that the conductive fibers 17 have static electricity, which is convenient for adsorbing graphite dust. After one end of time, close the pulse valve 6 on the right side of the ventilation pipe 5, open the pulse valve 6 on the left side of the ventilation pipe 5, start the air compressor 7, and the air compressor 7 sprays air through the ventilation pipe 5, so that the filter cloth 11 adheres The dust is loosened, which is convenient for the dust to fall down into the conical ash hopper 3. It is convenient to observe the accumulation of dust in the conical ash hopper 3 through the observation window 4. The ash discharge operation is more convenient to use. When cleaning or replacing the filter cloth, open the sealing door 16, turn and remove the first bolt 10, take out the plate frame 9, and turn and loosen the second bolt 13, so that the filter cloth 11 and the pressure plate 12 And the plate frame 9 is separated, which is convenient for operators to perform maintenance operations and is more convenient to use, which completes all the work, and the content not described in detail in this specification belongs to the prior art known to those skilled in the art.

The terms "center", "portrait", "horizontal", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, and is only a simplified description for the convenience of describing the present invention, rather than indicating or implying that the indicated device or element must have a specific Orientation, construction and operation are specific orientations, and therefore should not be construed as limiting the protection content of the present invention.

Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Within the spirit and principle of the present invention, any modifications, equivalent replacements, improvements, etc. made should be included within the protection scope of the present invention.

Claims (6)

1. A pulse bag filter, comprising a dust box (1), a plate frame (9), a first bolt (10), a second bolt (13) and a dust unloader (19), characterized in that: the dust removal The bottom of the box (1) is provided with a support frame (2) and a conical ash hopper (3), and the conical ash hopper (3) is arranged on the inner side of the support frame (2), and the lower end of the conical ash hopper (3) is provided with a rotary The valve (18), the ash unloader (19) is arranged below the conical ash hopper (3), the top of the dust box (1) has a ventilation pipe (5), and the left and right sides of the ventilation pipe (5) Both are provided with a pulse valve (6), the left end of the ventilation pipe (5) is connected with the air compressor (7), and the air compressor (7) is arranged on the left side of the dust box (1), and the ventilation pipe (5) ) is connected with the exhaust fan (8), and the exhaust fan (8) is arranged on the right side of the dust removal box (1), the plate frame (9) is arranged inside the dust removal box (1), and the upper end of the plate frame (9) Passing through the lower side of the ventilation pipe (5), the first bolt (10) passes through the plate frame (9) and is connected to the inner wall of the dust box (1), and the left and right sides of the plate frame (9) are provided with filter cloths (11). ), and the side of the filter cloth (11) away from the plate frame (9) is arranged on the pressure plate (12), the second bolt (13) penetrates through the pressure plate (12) and the filter cloth (11) is in contact with the plate frame (9). connection, an air inlet (14) runs through the front side of the dust box (1), and a deflector (15) is arranged on the inner wall of the front side of the dust box (1), and the deflector (15) is arranged at the air inlet ( 14) On the right side, a sealing door (16) is provided on the rear side of the dust box (1). 2 . The pulse bag filter according to claim 1 , wherein a cone-shaped ash hopper ( 3 ) is arranged below the two plates ( 9 ) in the dust box ( 1 ). 3 . 3. A pulse bag filter according to claim 1, characterized in that: an observation window (4) is provided on the front side of the conical ash hopper (3), and the conical ash hopper (3) is an inverted cone state settings. 4 . The pulse bag filter according to claim 1 , wherein the top of the plate frame ( 9 ) is sealedly connected to the ventilation pipe ( 5 ) through the first bolt ( 10 ). 5 . 5. A pulse bag filter according to claim 1, characterized in that: the filter cloth (11) is provided with conductive fibers (17), and the conductive fibers (17) pass through the dust box (1) and support The frame (2) is electrically connected to the earth. 6. A pulse bag filter according to claim 1, characterized in that: the second bolts (13) are evenly arranged on the pressing plate (12), and the second bolts (13) are connected to the plate frame (9). ) is a threaded connection.

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