Bag type dust collector convenient for cleaning dust in filter bag

Abstract

The utility model relates to a bag type dust collector convenient for cleaning dust in a filter bag, which comprises a shell, a filter bag, a dust collector, a dust collector and a filter bag, and the shell is provided with an air inlet and an air outlet; the plurality of dust collecting bags are hung in the shell; the dust removal bag cages are sleeved with the dust removal cloth bags, and each dust removal bag cage comprises a plurality of supporting rods and supporting discs arranged at the two ends of the corresponding supporting rod; the filter cloth expansion device comprises a driving mechanism and a pair of supporting frames which are arranged up and down, the supporting frames are of X-shaped structures, the supporting frames are arranged on the supporting rods in an up-down movable mode, and rolling wheels are arranged at openings of the X-shaped structures. The filter cloth expansion device can expand and tension the part, corresponding to the part between the pair of supporting frames, of the dust removal cloth bag; the driving mechanism is used for driving the supporting frame to move up and down; when the compressed air source outputs air flow to wash the interior of the dust removal cloth bag, the filter cloth expansion device moves from top to bottom or from bottom to top in the dust removal cloth bag.

Description

Technical Field

[0001] The utility model relates to the field of bag dust collectors, in particular to a bag dust collector which is convenient for removing dust from filter bags. Background Art

[0002] Bag filter is the main equipment for treating flue gas generated by various boilers and incinerators. The main structure of the dust collector is roughly divided into ash hopper, air inlet pipe, middle box, upper box, air outlet pipe, bypass air duct, spray pipe, filter device, etc. The specific principle is described as follows: under the negative pressure of the fan, the flue gas enters the dust collector shell through the air inlet main pipe and the air inlet short pipe, the coarse dust falls into the ash hopper, and the fine dust rises to the middle box with the air flow. The middle box is full of filter cloth. The air flow passes through the filter cloth and retains the fine dust in the flue gas on the outer surface of the filter cloth. The filtered pure air enters the upper box until the air outlet pipe, and the dust removal process ends. When the fine dust on the outer surface of the filter cloth adheres to a certain amount, the compressed air source releases high-pressure airflow to spray the filter cloth, and the fine dust on the outer surface of the filter cloth is blown into the ash hopper.

[0003] When the high-pressure airflow is sprayed on the inner surface of the filter cloth, the required air pressure of the high-pressure airflow is relatively large. When the high-pressure airflow passes through the filter cloth, the filter cloth will be compressed and expanded, and the instantaneous high pressure will easily cause the filter cloth to rupture. Moreover, the filter bag is in a static state, and a large amount of dust will still remain on the surface of the filter bag after the high-pressure airflow is sprayed on the filter bag.

[0004] In view of the above problems existing in the prior art, the purpose of the present invention is to design a bag type dust collector which is convenient for removing dust from the filter bag. Utility Model Content

[0005] In view of the problems existing in the above-mentioned prior art, the utility model provides a bag dust collector which is convenient for removing dust from filter bags and can effectively solve at least one problem existing in the above-mentioned prior art.

[0006] The technical solution of the utility model is:

[0007] A bag dust collector for easily removing dust from filter bags, comprising:

[0008] A housing, wherein the housing is provided with an air inlet and an air outlet;

[0009] A plurality of dust removal bags are hung in the shell;

[0010] A plurality of dust bag cages are sleeved in the dust bag, and the dust bag cages include a plurality of support rods and support plates arranged at both ends of the support rods;

[0011] The filter cloth expansion device comprises a driving mechanism and a pair of support frames arranged up and down, the support frame is an X-shaped structure, the support frame can be movably arranged on the support rod up and down, the opening of the X-shaped structure faces the side of the dust bag, the opening of the X-shaped structure is provided with rollers, and all the rollers enclose a X-shaped structure, the filter cloth expansion device can open and tighten the dust bag corresponding to the part between the pair of support frames, and the driving mechanism is used to drive the support frame to move up and down;

[0012] A compressed air source is connected to a connecting pipe through an air valve, and the connecting pipe is arranged above the dust bag. When the compressed air source outputs an airflow to flush the dust bag, the filter cloth expansion device moves from top to bottom or from bottom to top in the dust bag.

[0013] Furthermore, the driving mechanism comprises a screw assembly, a nut of the screw assembly is arranged at a middle position of the support frame, and a motor of the screw assembly is arranged above the dust removal bag.

[0014] Furthermore, the middle of the support plate is connected to the screw of the screw assembly through a first bearing.

[0015] Furthermore, a motor mounting bracket is provided at the upper end of the support plate at the top end of the dust bag cage, and the motor of the screw assembly is fixedly arranged through the motor mounting bracket.

[0016] Furthermore, the motor of the screw assembly and the screw of the screw assembly are detachably arranged.

[0017] Furthermore, a connection hole is provided at the end of the X-shaped structure, and the connection hole is sleeved on the support rod.

[0018] Furthermore, the roller is connected to a second bearing, a slot body is provided at the end of the support frame, a spring is provided in the slot body, and the second bearing is connected to the slot body through the spring, so that the roller can be telescopically arranged.

[0019] Therefore, the utility model provides the following effects and / or advantages:

[0020] The present application uses the upward and downward sweeping movement of the filter cloth expansion device to expand the corresponding filter cloth when the dust removal bag is cleaned by the compressed air source, so that the dust can be more easily separated from the dust removal bag. The present application operates the filter cloth by supporting and tensioning, which can reduce the air pressure released by the compressed air source into the dust removal bag, and prevent the dust removal bag from being damaged by excessive air pressure.

[0021] The present application is provided with a spring to enable the roller to be retractable and movable, and under this structure, the tensioning cloth bag can be effectively supported without damaging the cloth bag.

[0022] It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0024] Figure 2 It is a structural schematic diagram of a hidden top cover according to an embodiment of the utility model.

[0025] Figure 3 It is a schematic diagram of the structure of the dust removal bag.

[0026] Figure 4 It is a schematic diagram of the structure of the filter cloth expansion device and the dust bag cage.

[0027] Figure 5 It is a structural schematic diagram of the filter cloth expansion device.

[0028] Figure 6 Schematic diagram of the spring and roller setup. DETAILED DESCRIPTION

[0029] In order to facilitate understanding by those skilled in the art, the structure of the present invention is further described in detail with reference to the accompanying drawings:

[0030] Embodiment 1

[0031] refer to Figure 1-6 , a bag dust collector for easily removing dust from filter bags, comprising:

[0032] A housing 1, wherein the housing is provided with an air inlet 101 and an air outlet 102;

[0033] A plurality of dust removal bags 2 are hung in the housing 1;

[0034] A plurality of dust bag cages 3 are sleeved in the dust bag 2, and the dust bag cages 3 include a plurality of support rods 301 and support plates 302 disposed at both ends of the support rods 301;

[0035] In this embodiment, the dust bag 2 is directly adopted from the prior art, which has a filtering effect. After the smoke is filtered through the dust bag 2, the particles in the smoke are filtered out by the dust bag 2. The dust bag cage 3 is a cylindrical cage structure, which can unfold the dust bag 2.

[0036] The filter cloth expansion device 4 comprises a driving mechanism 401 and a pair of support frames 402 arranged up and down, wherein the support frame 402 is an X-shaped structure, and the support frame 402 can be movably arranged up and down on the support rod 401, and the opening of the X-shaped structure faces the side of the dust bag 2, and the opening of the X-shaped structure is provided with rollers 403, and all the rollers 403 form an X-shaped structure, and the filter cloth expansion device 4 can open and tighten the dust bag 2 corresponding to the part between the pair of support frames 402; the driving mechanism 401 is used to drive the support frame 402 to move up and down;

[0037] In this embodiment, the support frames 402 are arranged at intervals, and at the positions of a pair of support frames 402 corresponding to the dust bag 2, the dust bag 2 can be stretched and stretched, so that the filter space of the dust bag 2 is stretched, and the corresponding part of the dust bag 2 is exposed to more surface area, and when the airflow blows through the dust bag 2, the part of the support frame 402 corresponding to the dust bag 2 can be more thoroughly cleaned of dust. When the driving mechanism 401 drives the support frame 402 from the bottom end of the support rod 401 to the top end, all parts of the dust bag 2 can be stretched and stretched, so as to completely remove dust.

[0038] A compressed air source 5 is connected to a connecting pipe 501 through an air valve. The connecting pipe 501 is arranged above the dust bag 2. When the compressed air source 5 outputs an airflow to flush the dust bag 2, the filter cloth expansion device 4 moves from top to bottom or from bottom to top in the dust bag 2.

[0039] The connecting pipe 501 of this embodiment passes through the top of the dust bag 2, so as to exhaust the dust bag 2. At the same time, the support frame 402 is an X-shaped structure, which can provide a sufficient path for the airflow to reach the bottom from the top of the dust bag 2.

[0040] Furthermore, the driving mechanism 401 includes a screw assembly, a nut of the screw assembly is arranged at a middle position of the support frame 402 , and a motor of the screw assembly is arranged above the dust removal bag 2 .

[0041] Furthermore, the middle of the support plate 402 is connected to the screw of the screw assembly through a first bearing.

[0042] Furthermore, a motor mounting bracket 301 is provided at the upper end of the support plate 302 at the top end of the dust bag cage 3 , and the motor of the screw assembly is fixedly arranged through the motor mounting bracket 303 .

[0043] In this embodiment, the support frame 402 can move up and down through the screw rod assembly, so that the overall structure of the dust bag 2 can be traversed, and each part of the dust bag 2 can be stretched and stretched to remove dust from each part.

[0044] Furthermore, the motor of the screw assembly and the screw of the screw assembly are detachably arranged.

[0045] Through the detachable motor and screw rod, after installing the dust bag cage 3 into the dust bag 2, the screw rod is inserted into the dust bag cage 3, and then the motor is fixed to the motor mounting bracket 303.

[0046] Furthermore, a connection hole is provided at the end of the X-shaped structure, and the connection hole is sleeved on the support rod 301 .

[0047] Further, refer to Figure 6 The roller 403 is connected to a second bearing, a slot is provided at the end of the support frame 402, a spring 404 is provided in the slot, and the second bearing is connected to the slot through the spring 404, so that the roller 403 can be retracted.

[0048] In this embodiment, through the pushing action of the spring 404, the roller 403 protrudes outward from the outside of the opening of the X-shaped structure, so that the dust bag 2 can be more fully supported and opened, and the roller 403 can achieve a telescopic effect. During the up and down movement in the dust bag 2, the roller 403 can adapt to the internal space of the bag 2 to prevent the roller 403 from being over-supported and thereby damaging the dust bag 2.

[0049] It should be noted that in the claims, any reference signs placed between brackets shall not be constructed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. The utility model can be implemented with the aid of hardware comprising several different components and with the aid of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by the same hardware item. The use of the words first, second, and third etc. does not indicate any order. These words may be interpreted as names.

[0050] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0051] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

Claims

1. A bag filter for easily removing dust from filter bags, characterized in that: include: A housing, wherein the housing is provided with an air inlet and an air outlet; A plurality of dust removal bags are hung in the shell; A plurality of dust bag cages are sleeved in the dust bag, and the dust bag cages include a plurality of support rods and support plates arranged at both ends of the support rods; The filter cloth expansion device comprises a driving mechanism and a pair of support frames arranged up and down, the support frame is an X-shaped structure, the support frame can be movably arranged on the support rod up and down, the opening of the X-shaped structure faces the side of the dust bag, the opening of the X-shaped structure is provided with rollers, and all the rollers form an X-shaped structure, the filter cloth expansion device can open and tighten the dust bag corresponding to the part between the pair of support frames, and the driving mechanism is used to drive the support frame to move up and down; A compressed air source is connected to a connecting pipe through an air valve, and the connecting pipe is arranged above the dust bag. When the compressed air source outputs an airflow to flush the dust bag, the filter cloth expansion device moves from top to bottom or from bottom to top in the dust bag.

2. A bag filter for easily removing dust from filter bags according to claim 1, characterized in that: The driving mechanism comprises a screw assembly, a nut of the screw assembly is arranged at a middle position of the support frame, and a motor of the screw assembly is arranged above the dust removal bag.

3. A bag filter for easily removing dust from filter bags according to claim 2, characterized in that: The middle of the support plate is connected to the screw of the screw assembly through a first bearing.

4. A bag filter for easily removing dust from filter bags according to claim 2, characterized in that: A motor mounting frame is arranged on the upper end of the support plate at the top end of the dust bag cage, and the motor of the screw rod assembly is fixedly arranged by the motor mounting frame.

5. A bag filter for easily removing dust from filter bags according to claim 2, characterized in that: The motor of the screw assembly and the screw of the screw assembly are detachably arranged.

6. A bag filter for easily removing dust from filter bags according to claim 1, characterized in that: A connecting hole is provided at the end of the X-shaped structure, and the connecting hole is sleeved on the supporting rod.

7. A bag filter for easily removing dust from filter bags according to claim 1, characterized in that: The roller is connected to a second bearing, a slot is provided at the end of the support frame, a spring is provided in the slot, and the second bearing is connected to the slot through the spring, so that the roller can be telescopically arranged.

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