CN219355589U - Bag type dust collector - Google Patents

Abstract

The utility model relates to a bag type dust collector, which comprises a box body, a filtering device and a dust removing device, wherein the box body is provided with a gas purifying chamber and an ash bucket, and the box body is also provided with a gas inlet and a gas outlet; the filtering device comprises a filter bag, the filter bag is positioned in the box body and is communicated between the clean air chamber and the ash bucket, the air inlet is communicated with the filter bag through the ash bucket, and the air outlet is communicated with the filter bag through the clean air chamber; the dust removing device is provided with an idle position, the air outlet is communicated with the clean air chamber, and a working position, the dust removing device is disconnected from the air outlet and the clean air chamber, and compressed air is introduced into the clean air chamber. According to the bag type dust collector disclosed by the utility model, when a certain amount of magazines such as dust are accumulated on the surface of the filter bag, compressed gas is introduced into the filter bag, so that the filter bag is suddenly expanded, impurities such as dust attached to the surface of the filter bag are rapidly separated from the filter bag and fall into the ash bucket under the action of reverse airflow, and the cleaning of the dust on the surface of the filter bag is completed.

Description

Bag type dust collector

Technical Field

The disclosure relates to the technical field of dust removal equipment, in particular to a bag type dust collector.

Background

The bag-type dust collector is a dust-collecting equipment for filtering out dust from dust-containing gas by using organic fibre or inorganic fibre filtering material, and is applicable to capturing fine, dry, non-cohesive and non-fibrous industrial dust. When the dust-containing gas holes pass through the filter layer, dust is blocked on the surface of the filter bag, and dry air is discharged through gaps among fibers of the filter bag, so that the purpose of separating dust-containing gas and dust is achieved, and the dry dust filtering device is provided.

However, after long-time operation, a large amount of impurities such as dust are accumulated on the surface of the filter bag, and dust remains on the surface of the filter bag after the cleaning device cleans the surface of the filter bag, so that the working efficiency of the bag type dust collector is affected to a certain extent.

Disclosure of Invention

The utility model provides a bag collector, this bag collector can effectively clear away the impurity such as dust that the filter bag surface adheres to after long-time use, makes impurity fall into the ash bucket.

In order to achieve the above object, the present disclosure provides a bag filter comprising:

the box body is provided with a gas purifying chamber and an ash bucket, and is also provided with a gas inlet and a gas outlet;

the filtering device comprises a filter bag, the filter bag is positioned in the box body and is communicated between the air purifying chamber and the ash bucket, the air inlet is communicated with the filter bag through the ash bucket, and the air outlet is communicated with the filter bag through the air purifying chamber; and

the dust removing device is provided with an idle position and a working position, the air outlet is communicated with the air purifying chamber in the idle position, and the dust removing device is disconnected from the air outlet and the air purifying chamber in the working position and is used for introducing compressed gas into the air purifying chamber.

Optionally, a partition is disposed in the box, the partition makes the box separate into a first chamber, a gas purifying chamber and a second chamber, the first chamber is communicated with the gas inlet, the second chamber is communicated with the gas outlet, the partition has a first partition plate separating the first chamber from the second chamber, in the idle position, the second chamber is communicated with the gas purifying chamber, in the working position, the dust removing device disconnects the communication between the second chamber and the gas purifying chamber.

Optionally, the partition member further has a second partition plate, and a communication hole is provided on the second partition plate, and in the idle position, the communication hole communicates the clean air chamber and the second chamber, and in the working position, the dust removing device seals the communication hole.

Optionally, the dust removing device comprises a spray pipe movably arranged on the box body, and in the idle position, the spray pipe and the communication hole are staggered; and in the working position, the spray pipe moves to block the communication hole, and compressed gas is introduced into the gas purifying chamber.

Optionally, a control valve is disposed on the nozzle, and the control valve is used to selectively communicate the nozzle with the clean air chamber.

Optionally, the bag filter further comprises a detection assembly and a controller electrically connected with the detection assembly, wherein the detection assembly is used for detecting the gas flow rate of the gas outlet, and the controller is used for controlling the spray pipe to selectively block the communication hole according to the detection assembly.

Optionally, one end of the spray pipe far away from the box body is connected with an air compressor, and the air compressor is used for introducing compressed gas into the air purifying chamber through the spray pipe.

Optionally, a plurality of filter bags are provided, and a plurality of filter bags are arranged in the box body at intervals.

Optionally, the ash bucket is in an inverted cone shape.

Optionally, a vibrator is arranged on the outer side surface of the ash bucket.

Compared with the prior art, the utility model has the advantages that: the bag type dust collector comprises a box body, a filtering device and a dust removing device. The filtering device comprises a filtering bag, the filtering bag is positioned in the box body, dust-containing gas which is introduced into the box body through the air inlet can be filtered, impurities such as dust and the like in the dust-containing gas are removed, and the gas filtered by the filtering bag can reach the air outlet through the clean air chamber and is discharged through the air outlet. After a period of work, the dust collector is switched from the idle position to the working position after a certain amount of dust is accumulated on the surface of the filter bag, compressed gas is introduced into the filter bag through the air purifying chamber, so that the filter bag is suddenly expanded, and impurities such as dust attached to the surface of the filter bag are rapidly separated from the filter bag and fall into the dust hopper under the action of reverse airflow, so that the dust on the surface of the filter bag is removed. The bag type dust collector has high dust collection efficiency and higher dust collection efficiency on fine dust, so that the dust collection efficiency of the bag type dust collector can be ensured. In addition, in the working position, the dust removing device can disconnect the communication between the air outlet and the air purifying chamber, so that compressed air can smoothly enter the filter bag through the air purifying chamber.

Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:

FIG. 1 is a schematic cross-sectional view of a baghouse provided in an embodiment of the disclosure;

fig. 2 is a schematic diagram of a detection assembly and a controller in a bag filter provided in an embodiment of the disclosure.

Description of the reference numerals

1-a box body; 11-a clean air chamber; 12-ash bucket; 13-air inlet; 14-an air outlet; 15-a separator; 151-communicating holes; 152-a first divider plate; 153-a second separator; 16-a first chamber; 17-a second chamber;

2-a filtering device; 21-filtering bags;

3-a dust removal device; 31-spraying pipe; 32-a control valve;

4-an air compressor; 5-a detection assembly; 6-a controller; 7-vibrator.

Detailed Description

Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.

In this disclosure, unless otherwise indicated, terms of orientation such as "upper, lower, high, low, top, bottom" are used to generally refer to the orientation of the corresponding component or structure in the direction of gravity, and in particular reference may be made to the orientation of the drawing plane shown in fig. 1. "inner and outer" means both the inner and outer of the corresponding component profile. In addition, it should be noted that terms such as "first, second", etc. are used to distinguish one element from another element without order or importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings denote the same elements. The foregoing definitions are provided for the purpose of illustrating and explaining the present disclosure and should not be construed as limiting the present disclosure.

The utility model relates to a bag collector can be after long-time work, effectively get rid of impurity such as dust attached to the filter bag surface through dust collector, avoids its work efficiency who influences the dust remover. The bag type dust collector of the present disclosure includes a case 1, the case 1 has a gas purifying chamber 11 and an ash bucket 12, and an air inlet 13 and an air outlet 14 are further provided on the case 1. The filter device 2 comprises a filter bag 21, the filter bag 21 is positioned in the box body 1 and communicated between the clean air chamber 11 and the ash bucket 12, the air inlet 13 is communicated with the filter bag 21 through the ash bucket 12, and the air outlet 14 is communicated with the filter bag 21 through the clean air chamber 11. The dust removing device 3 has an idle position in which the air outlet 14 communicates with the clean air chamber 11, and an operating position in which the dust removing device 3 disconnects the air outlet 14 from the clean air chamber 11 and introduces compressed air into the clean air chamber 11.

When the bag type dust collector disclosed by the disclosure works, dust-containing gas which is introduced into the box body 1 through the air inlet 13 can be filtered, impurities such as dust and the like in the dust-containing gas are removed, and the gas filtered by the filter bag 21 can reach the air outlet 14 through the clean air chamber 11 and is discharged through the air outlet 14. After a period of time of operation, the surface of the filter bag 21 is piled with a certain amount of dust, at this time, the dust removing device 3 is switched from the idle position to the working position, compressed gas is introduced into the filter bag 21 through the air purifying chamber 11, so that the filter bag 21 is suddenly expanded, and under the action of reverse air flow, the dust and other impurities attached to the surface of the filter bag 21 are quickly separated from the filter bag 21 and fall into the dust hopper 12, thus completing the cleaning of the dust on the surface of the filter bag. The bag type dust collector of this disclosure has high dust collection efficiency, also has higher dust collection efficiency to fine dust to can guarantee the dust collection efficiency of bag type dust collector. In addition, in the operating position, the dust removing device 3 can disconnect the communication between the air outlet 14 and the clean air chamber 11, so that the compressed air can smoothly pass through the clean air chamber 11 into the filter bag 21.

In the embodiment of the disclosure, the section of the upper part of the box 1 may be rectangular, the clean air chamber 11, the filtering device 2, the dust removing device 3 and the air outlet 14 are all located at the upper part of the box 1, the section of the lower part of the box 1 may be conical, and the air inlet 13 and the ash bucket 12 are located at the lower part of the box 1. Of course, in other embodiments, the shape of the case 1 may be other types, and may be specific according to the actual situation, which is not limited by the present disclosure.

In one embodiment of the present disclosure, referring to fig. 1, the filter bag 21 is provided in plurality and is provided in the case 1 at intervals. By arranging the plurality of filter bags 21, the gas to be purified can be contacted with the plurality of filter bags 21 when passing through the plurality of filter bags 21, so that the contact area with the filter bags 21 is increased, and the purifying effect is better. In this embodiment, four filter bags 21 are disposed and distributed in the case 1 at intervals, however, in other embodiments, the number of filter bags 21 may be more or less, and the disclosure is not limited thereto.

In one embodiment of the present disclosure, referring to fig. 1, a partition 15 is provided in the tank 1, and an inner cavity of the tank 1 may be divided into a first chamber 16, a gas purifying chamber 11, and a second chamber 17 by the partition 15. Wherein the first chamber 16 is in communication with the air inlet 13 and the ash bucket 12, and the second chamber 17 is in communication with the air purifying chamber 11 and the air outlet 14. The partition 15 includes a first partition plate 152, and the first chamber 16 and the second chamber 17 are partitioned by the partition plate 152. By the arrangement, when the gas to be purified is introduced into the first chamber 16 through the gas inlet 13, the gas to be purified is prevented from entering the gas purifying chamber 11 and the second chamber 17, so that the gas to be purified can only flow towards the direction of the filter bag 21, and the gas to be purified is purified. In this embodiment, when the dust removing device 3 is in the idle position, the second chamber 17 is communicated with the air purifying chamber 11, and when the dust removing device 3 is in the working position, the communication between the second chamber 17 and the air purifying chamber 11 is disconnected, so that the introduced compressed air can directly enter the filter bag 21 through the air purifying chamber 11. Of course, in other embodiments, the inner cavity of the case 1 may be divided into more or fewer chambers, and the dust removing device 3 may also work in actual situations, which is not limited in this disclosure.

In one embodiment of the present disclosure, referring to fig. 1, the partition 15 may further include a second partition 153, the second partition 153 being disposed between the clean air chamber 11 and the second chamber 17 to separate the clean air chamber 11 and the second chamber 17. The second partition plate 153 is provided with a communication hole 151, and communication between the gas purifying chamber 11 and the second chamber 17 is ensured by the communication hole 151, so that the gas in the gas purifying chamber 11 can flow into the second chamber 17 through the communication hole 151 and then flow out of the tank 1 through the gas outlet 14. In this embodiment, when the dust removing device 3 is in the idle position, the communication hole 151 can communicate the air purifying chamber 11 with the second chamber 17, and when the dust removing device 3 is in the working position, the dust removing device 3 can disconnect the communication between the air purifying chamber 11 and the second chamber 17 by plugging the communication hole 151, so as to prevent the compressed gas from flowing out of the air outlet 14 directly after entering the second chamber 17, so that the compressed gas can only flow into the air purifying chamber 11 and the filter bag 21, and the dust removing effect is achieved.

In one embodiment of the present disclosure, referring to fig. 1, the dust removing device 3 includes a nozzle 31 movably provided to the case 1. When the dust collector 3 is at the idle position, the spray pipe 31 and the communication hole 151 are staggered, so that the air purifying chamber 11 and the second chamber 17 can be communicated, the flow direction of gas is ensured, and when the dust collector 3 is at the working position, the spray pipe 31 moves to a position for blocking the communication hole 151, and the communication between the air purifying chamber 11 and the second chamber 17 is disconnected. So that the compressed gas can only enter the air purifying chamber 11 and the filter bag 21 to remove dust. In this embodiment, the oil cylinder or the air cylinder may be used to drive the spray pipe 31 to move, or the transmission mechanism such as the motor screw may be used to drive the spray pipe 31 to move, which may be specifically set according to the actual situation, which is not limited in this disclosure.

In one embodiment of the present disclosure, referring to fig. 1, a control valve 32 is further provided on the nozzle 31, and the nozzle 31 can be controlled to selectively communicate with the air purifying chamber 11 by the control valve 32. When the dust collector 3 is in the idle position, the control valve 32 can seal the nozzle 31, so as to prevent the nozzle 31 from spraying compressed gas into the clean air chamber 11, thereby causing the dust collector to fail. When the dust removing device 3 is in the working position, the nozzle 31 will move to the position for blocking the communication hole 151, and the control valve 32 will communicate the nozzle 31 with the clean air chamber 11, so that the nozzle 31 can spray compressed gas into the clean air chamber 11 to remove dust from the filter bag 21. The control valve 32 may be a valve body known to those skilled in the art, such as a solenoid valve, and may be specifically determined according to practical situations, and will not be described herein in detail.

In one embodiment of the present disclosure, referring to fig. 1, an air compressor 4 is connected to an end of the nozzle 31 remote from the case 1, and high-pressure air can be introduced into the clean air chamber 11 through the air compressor 4 to complete dust removal of the filter bag 21. Of course, in other embodiments, other devices capable of injecting compressed gas into the clean air chamber 11 through the nozzle 31 may be used to connect with the nozzle 31, and will not be described herein.

In one embodiment of the present disclosure, referring to fig. 1 and 2, the baghouse further includes a detection assembly 5 and a controller 6 electrically connected to the detection assembly 5. In this embodiment, the detecting component 5 is located at the gas outlet 14, and is capable of detecting the flow rate of the gas at the gas outlet 14, and when the flow rate of the gas at the gas outlet 14 decreases to a certain preset value, a signal is sent to the controller 6. The controller 6 can control the spray pipe 31 in the dust removing device 3 to move to a position capable of blocking the communication hole 151, and then control the control valve 32 to communicate the spray pipe 31 with the clean air chamber 11, so that the spray pipe 31 can spray compressed gas into the clean air chamber 11, and the purpose of purifying dust on the surface of the filter bag 21 is achieved. The detecting unit 5 may be a sensor for detecting a gas flow rate, etc., and the controller 6 may control each component in the dust removing device 3 by using a PLC, or may be other devices known to those skilled in the art, and will not be described in detail herein.

In one embodiment of the present disclosure, referring to FIG. 1, the ash bucket 12 is in the shape of an inverted cone. By doing so, when the foreign matter such as dust falls into the hopper 12, the foreign matter can smoothly slide to the bottom of the hopper 12 without remaining on the side wall of the hopper 12, thereby causing dust accumulation. In addition, in order to better remove impurities such as dust attached to the side wall of the ash bucket 12, in another embodiment of the present disclosure, a vibrator 7 is further disposed on the outer side wall of the ash bucket 12, and the vibrator 7 can vibrate by itself to drive the ash bucket 12 to vibrate synchronously, so that the impurities such as dust attached to the side wall of the ash bucket 12 can slide to the bottom of the ash bucket 12 under the action of vibration to clean the side wall of the ash bucket 12.

When the bag type dust collector disclosed by the disclosure is used, gas to be purified is introduced into the first cavity 16 through the air inlet 13, then the gas flows towards the direction of the filter bag 21 and passes through the filter bag 21 to finish filtering, and the gas enters the air purifying chamber 11, so that dust with larger weight in impurities such as dust generated by filtering falls into the ash bucket 12 under the action of self gravity, and the dust with lighter self gravity is attached to the outer surface of the filter bag 21. The finally purified gas flows from the clean gas chamber 11 into the second chamber 17 through the communication hole 151 and then out of the dust collector through the gas outlet 14.

After a certain period of time, a certain amount of dust and other impurities accumulate on the outer surface of the filter bag 21, which results in a decrease in the flow rate of the gas flowing out of the gas outlet 14. When the detecting component 5 detects that the gas flow rate at the gas outlet 14 is reduced to a certain preset value, a signal is sent to the controller 6, so that the controller 6 controls the dust removing device 3 to be switched from the idle position to the working position. In the transition process, the controller 6 firstly controls the spray tube 31 to move towards the direction of the communication hole 151 until the spray tube 31 blocks the communication hole 151, and then controls the control valve 32 to communicate the spray tube 31 with the clean gas chamber 11, so that the spray tube 31 can spray compressed gas into the clean gas chamber 11. After entering the air purifying chamber 11, the compressed air flows into the filter bag 21, so that the filter bag 21 rapidly expands under the action of the compressed air, thereby shaking off impurities such as dust attached to the outer surface, and the shaken-off impurities can drop down into the ash bucket 12 for storage, so that the dust removal of the filter bag 21 is completed. The whole dust removal process is convenient and quick, and the dust removal efficiency is high.

The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.

In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.

Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.

Claims (10)

1. A bag filter, comprising:

the box body is provided with a gas purifying chamber and an ash bucket, and is also provided with a gas inlet and a gas outlet;

the filtering device comprises a filter bag, the filter bag is positioned in the box body and is communicated between the air purifying chamber and the ash bucket, the air inlet is communicated with the filter bag through the ash bucket, and the air outlet is communicated with the filter bag through the air purifying chamber; and

the dust removing device is provided with an idle position and a working position, the air outlet is communicated with the air purifying chamber in the idle position, and the dust removing device is disconnected from the air outlet and the air purifying chamber in the working position and is used for introducing compressed gas into the air purifying chamber.

2. The bag house dust collector of claim 1, wherein a partition is provided in the housing, the partition dividing the housing into a first chamber, a clean air chamber and a second chamber, the first chamber being in communication with the air inlet and the second chamber being in communication with the air outlet, the partition having a first partition separating the first chamber and the second chamber, the second chamber being in communication with the clean air chamber in the rest position, and the dust removal device disconnecting the second chamber from communication with the clean air chamber in the operating position.

3. The bag house dust collector as claimed in claim 2, characterized in that the partition further has a second partition plate, on which a communication hole is provided, which communication hole communicates the clean air chamber and the second chamber in the rest position, and in which the dust removing device blocks the communication hole.

4. A bag house dust collector as claimed in claim 3, characterized in that the dust removing means comprises a nozzle movably arranged to the housing, which nozzle is arranged in a staggered manner with respect to the communication hole in the rest position; and in the working position, the spray pipe moves to block the communication hole, and compressed gas is introduced into the gas purifying chamber.

5. The baghouse of claim 4 wherein a control valve is provided on the lance for selectively communicating the lance with the clean air chamber.

6. The baghouse of claim 4 further comprising a detection assembly for detecting a gas flow rate of the gas outlet and a controller electrically connected to the detection assembly for controlling the spout to selectively block the communication hole in accordance with the detection assembly.

7. The bag house of claim 4, wherein an air compressor is connected to an end of the nozzle remote from the housing, the air compressor being configured to deliver compressed gas through the nozzle into the plenum.

8. The bag collector of claim 1 wherein a plurality of said filter bags are provided, a plurality of said filter bags being spaced apart in said housing.

9. The baghouse of claim 1 wherein the ash bucket is inverted cone shaped.

10. The baghouse as set forth in claim 9 wherein the outer side of the ash bucket is provided with a rapper.