Bag-type dust collector

Abstract

The utility model discloses a bag-type dust collector which comprises a bracket, a dust collection box, a discharging mechanism, a back flushing mechanism and a dust collection bag module, the bottom of the dust removal box communicates with the discharging mechanism, and the support is arranged below the dust removal box. The dust collection bag module comprises a filter bag fixing frame and a plurality of dust collection bag units; the filter bag fixing frame is arranged in the dust removal box, a plurality of rows of cloth bag mounting hole groups are formed in the filter bag fixing frame, and each cloth bag mounting hole group comprises a plurality of cloth bag mounting holes which are distributed at intervals; the dust collection bag unit comprises a filter bag frame, a filter bag and an air guide structure, and the filter bag is arranged on the periphery of the filter bag frame in a sleeving mode. According to the bag-type dust remover, by improving the structure of the filter bag frame, the air quantity entering the filter bag is increased, metal dust on the filter bag is effectively cleaned, the metal dust on the bag body is shaken off to the discharging mechanism for cleaning, the situation that the dust removal effect becomes poor due to the fact that dust is accumulated on the bag body for a long time is avoided, the dust removal function is achieved, the dust removal effect is improved, and the service life of the bag-type dust remover is prolonged. And the times of stopping to replace the filter bag are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to dust removal equipment field especially relates to a cloth bag dust collector. BACKGROUND

[0002] The cloth bag dust collector is also called a bag-type dust collector, and is a dust control device widely used in industrial fields. The cloth bag dust collector captures and filters solid particles in dust-containing gas by using a cloth bag. The cloth bag dust collector uses a filter bag as a filter medium. When dust-containing gas passes through the filter bag, solid particles are intercepted on the surface of the filter bag, and clean gas is discharged through the filter bag. In actual use, the cloth bag dust collector is also often used to filter metal dust. With the continuous use of the cloth bag dust collector, there is a lot of metal dust on the cloth bag, which greatly reduces the discharge capacity of clean air passing through the filter bag, resulting in a decrease in the filtering effect of the cloth bag dust collector. Therefore, it is necessary to clean the dust accumulated on the cloth bag to restore the cloth bag dust collector.

[0003] Although the existing cloth bag dust collector is provided with a fan or a jet device for cleaning the cloth bag, the metal dust is very fine and light in quality, and it is difficult to clean the metal dust on the cloth bag by air flow. Therefore, the existing fan or jet device cannot effectively clean the metal dust on the filter bag, affecting the purification efficiency of the cloth bag dust collector. SUMMARY

[0004] The utility model aims at providing a cloth bag dust collector to solve the problem that the fan or jet device of the existing cloth bag dust collector cannot effectively clean the metal dust on the filter bag.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a cloth bag dust collector, which comprises a support, a dust removal box, a discharging mechanism, a back blowing mechanism and a dust removal cloth bag module.

[0007] The bottom of the dust removal box is communicated with the discharging mechanism, and the discharging mechanism is used for supporting the dust removal box. The support is arranged below the dust removal box and is sleeved on the outer periphery of the discharging mechanism.

[0008] The dust removal cloth bag module comprises a filter bag fixing frame and a plurality of dust removal cloth bag units. The filter bag fixing frame is arranged in the dust removal box, and is provided with a plurality of rows of cloth bag mounting hole groups. Each cloth bag mounting hole group comprises a plurality of cloth bag mounting holes which are spaced apart. The dust removal cloth bag unit comprises a filter bag frame, a filter bag and a wind guide structure. The filter bag is sleeved on the outer periphery of the filter bag frame. The front end of the filter bag frame protrudes from the filter bag, and the wind guide structure is sleeved on the front end of the filter bag frame. The front end surface of the filter bag frame is provided with a jet inlet. One end of the wind guide structure is communicated with the jet inlet, and the other end of the wind guide structure is communicated with the opening of the filter bag. The filter bag frame is detachably connected to the cloth bag mounting hole.

[0009] The back flushing mechanism is arranged in the dust removal box, and the back flushing mechanism is provided with a plurality of air injection ports, the positions of the air injection ports are matched with the air injection inlet.

[0010] In the bag filter, the back flushing mechanism comprises a back flushing device and a plurality of sweeping pipes, the back flushing device is arranged on the front side of the support, the lower ends of the plurality of sweeping pipes are respectively communicated with the air outlet ends of the back flushing device, and the upper ends of the sweeping pipes penetrate into the dust removal box; a plurality of air injection ports are arranged on the side walls of the sweeping pipes.

[0011] In the bag filter, the air guide structure comprises a fixing sleeve, a first air guide plate and a second air guide plate.

[0012] The fixing sleeve is arranged on the front end of the filter bag frame, the front end of the first air guide plate is arranged on the inner wall of one side of the fixing sleeve, and the front end of the second air guide plate is arranged on the inner wall of the other side of the fixing sleeve; the rear ends of the first air guide plate and the second air guide plate are both provided with air guide fins, and the air guide fins are both arranged outwardly inclined; the two air guide fins cooperatively form a horn-shaped air guide area, and the air guide area is communicated with the opening of the filter bag.

[0013] In the bag filter, the dust removal box comprises a box body, an air inlet platform and an air outlet platform; the box body is used for accommodating the back flushing mechanism and the dust removal bag module; the air inlet platform and the air outlet platform are respectively arranged at the top proximal ends of the box body, the air outlet platform is communicated with the front side wall of the box body, the top surface of the air outlet platform is provided with an air outlet, the air inlet platform is communicated with the rear side wall of the box body, and the top surface of the air inlet platform is provided with an air inlet.

[0014] The front side of the box body is provided with a plurality of cleaning chambers, the positions of the cleaning chambers are matched with the positions of the bag mounting hole groups, and the cleaning chambers are all provided with front maintenance doors.

[0015] The rear side of the box body is provided with a plurality of back maintenance openings, the positions and numbers of the back maintenance openings are matched with the positions and numbers of the bag mounting hole groups, and the back maintenance openings are all provided with back maintenance doors.

[0016] In the bag filter, the box body is provided with a first air equalizing plate, a second air equalizing plate and a third air equalizing plate, and the first air equalizing plate, the second air equalizing plate and the third air equalizing plate are all located above the dust removal bag unit.

[0017] The first air equalizing plate is arranged on the front side of the air outlet end of the air inlet platform along the left-right direction, and the lower end of the first air equalizing plate is arranged inclined to one side of the air inlet platform; the third air equalizing plate is arranged on the rear side of the air inlet end of the air outlet platform along the left-right direction; and the second air equalizing plate is arranged between the first air equalizing plate and the third air equalizing plate along the left-right direction.

[0018] The filter bag fixing frame comprises a filter bag fixing plate, a connecting horizontal rod, a reinforcing rib and a plurality of partition plates.

[0019] The filter bag fixing plate separates the dust removal box into a dust chamber and a clean air chamber, and a plurality of groups of bag mounting holes are arranged on the filter bag fixing plate.

[0020] The partition plates, the filter bag fixing plate and the dust removal box cooperatively form a plurality of cleaning zones, the cleaning zones are separated into a plurality of cleaning chambers, and at least one group of bag mounting holes is arranged in each cleaning chamber.

[0021] One end of the connecting horizontal rod is connected with the filter bag fixing plate, and the other end of the connecting horizontal rod is connected with the reinforcing rib.

[0022] In the bag-type dust collector, a plurality of explosion venting sheets are arranged on the top of the dust removal box.

[0023] In the bag-type dust collector, the unloading mechanism comprises at least one unloading unit, the unloading unit comprises a dust hopper and an unloader, the top of the dust hopper is communicated with the bottom of the dust removal box, the bottom of the dust hopper is provided with an unloading port, and the unloader is arranged on the unloading port and used for controlling opening or closing of the unloading port.

[0024] The technical scheme in the utility model can have the following beneficial effects:

[0025] The bag-type dust collector improves the structure of the filter bag frame, enhances the air volume entering the filter bag, effectively removes the metal dust on the filter bag, shakes off the metal dust on the bag body to the unloading mechanism for cleaning, avoids long-time accumulation of dust on the bag body to cause poor dust removal effect, has the dust cleaning function, improves the dust removal effect, reduces the frequency of stopping and replacing the filter bag, and improves the working efficiency of the bag-type dust collector. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic view of one embodiment of the utility model;

[0027] Figure 2 is Figure 1 is a structural schematic view of another side of the embodiment;

[0028] Figure 3 is a cross-sectional view of a dust removal bag unit in one embodiment of the utility model;

[0029] Figure 4 is a position relation diagram of the back flushing mechanism and the dust removal cloth bag module in one of the embodiments of the utility model;

[0030] Figure 5 is a structure diagram of the dust removal box in one of the embodiments of the utility model;

[0031] Figure 6 is a connection diagram of the filter bag frame and the box in one of the embodiments of the utility model;

[0032] In the drawing: support 1, dust removal box 2, unloading mechanism 3, back flushing mechanism 4, dust removal cloth bag module 5;

[0033] Box 21, air inlet platform 22, air outlet platform 23; front access door 24; back access door 25; explosion vent 26; dust hopper 31, unloader 32; back flushing device 41; blowing pipe 42; filter bag fixing frame 51, dust removal cloth bag unit 52;

[0034] First air equalizing plate 211, second air equalizing plate 212, third air equalizing plate 213; air inlet 220; air outlet 230; cloth bag mounting hole 501; filter bag fixing plate 511, connecting cross bar 512, reinforcing rib 513, partition plate 514; air injection inlet 520; filter bag frame 521, filter bag 522, air guide structure 523;

[0035] Fixed sleeve 5231, first air guide plate 5232, second air guide plate 5233; air guide sheet 5234; avoiding hole 5140. DETAILED DESCRIPTION

[0036] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.

[0037] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and is not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as limiting the utility model. In addition, the features limited by "first", "second" can be explicitly or implicitly include one or more features, used to distinguish the described features, without order, without difference.

[0038] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two.

[0039] In the description of the utility model, it is necessary to explain that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, and can be detachable connection, or integrally connected;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication between two elements.

[0040] Please refer to Figures 1-6 The utility model provides a cloth bag dust remover, including support 1, dust removal box 2, unloading mechanism 3, blowback mechanism 4 and dust removal cloth bag module 5;

[0041] The bottom of dust removal box 2 is communicated with unloading mechanism 3, and the unloading mechanism 3 is used to support dust removal box 2;The support 1 is arranged below dust removal box 2 and is sleeved on the outer periphery of unloading mechanism 3;

[0042] The dust removal cloth bag module 5 includes filter bag fixing frame 51 and a plurality of dust removal cloth bag units 52;The filter bag fixing frame 51 is arranged in dust removal box 2, and the filter bag fixing frame 51 is provided with a plurality of cloth bag mounting hole groups, and the cloth bag mounting hole group includes a plurality of cloth bag mounting holes 501 arranged at intervals;The dust removal cloth bag unit 52 includes filter bag frame 521, filter bag 522 and air guide structure 523, the filter bag 522 is sleeved on the outer periphery of filter bag frame 521;The front end of filter bag frame 521 extends from filter bag 522, and the air guide structure 523 is sleeved on the front end of filter bag frame 521;The front end surface of filter bag frame 521 is provided with air injection inlet 520, one end of air guide structure 523 is communicated with air injection inlet 520, and the other end of air guide structure 523 is communicated with the opening of filter bag 522;Filter bag frame 521 is detachably connected to cloth bag mounting hole 501;

[0043] The blowback mechanism 4 is arranged in dust removal box 2, and the blowback mechanism 4 is provided with a plurality of air injection ports, and the positions of the air injection ports are matched with air injection inlet 520.

[0044] The cloth bag dust collector is equipped with a back blowing mechanism 4 and a plurality of dust removal cloth bag modules 5. When the filter bag needs to be cleaned, the back blowing mechanism 4 sprays compressed air from the air jet port, so that the compressed air enters the inside of the filter bag 522 through the air jet inlet 520 of the filter bag frame 521 to perform reverse blowing on the filter bag. The filter bag 522 is raised outward by the compressed air, so that the dust attached to the filter bag falls into the unloading mechanism 3 below, and then is discharged from the cloth bag dust collector. Before replacing the filter bag 522, most of the dust can be removed by the back blowing mechanism 4, thereby reducing the contact of dust during replacement.

[0045] The air jet port of the back blowing mechanism 4 in the cloth bag dust collector is matched with the position of the air jet inlet 520 of the filter bag frame 521, and is located at the inlet of the filter bag. When the compressed air is sprayed from the air jet port, the surrounding air is driven into the inside of the filter bag 522 to form a larger air flow, which helps to strip the metal particles on the filter bag 522.

[0046] The dust removal box 2 is used to accommodate the back blowing mechanism 4 and the dust removal cloth bag module 5, so as to concentrate the metal particles in the filtered air. The support 1 is used to support the overall structure of the cloth bag dust collector. The unloading mechanism 3 is used to discharge the collected dust and metal particles from the cloth bag dust collector. The filter bag fixing frame 51 is provided with a plurality of rows of cloth bag mounting hole groups, each of which includes a plurality of cloth bag mounting holes 501. When the dust removal cloth bag unit 52 is inserted into the cloth bag mounting hole 501, a multi-layer filter bag matrix is formed, which improves the filtering effect of metal dust.

[0047] The size of the filter bag 522 and the filter bag frame 521 is matched, which can reduce unnecessary friction of the filter bag 522 during use due to excessive activity space, thereby avoiding the situation that the service life of the filter bag 522 is shortened. The filter bag 522 is inserted into the cloth bag mounting hole 501 through the filter bag frame 521, which facilitates the replacement of the filter bag and can be quickly disassembled or installed. Moreover, the structure of the filter bag frame 521 is relatively firm, which can maintain the shape of the filter bag 522 and prevent it from deforming or contacting each other during work, thereby reducing the abrasion caused by vibration of air flow and improving the filtering efficiency and service life of the filter bag 522.

[0048] The cloth bag dust collector improves the structure of the filter bag frame, enhances the air volume entering the filter bag 522, effectively cleans the metal dust on the filter bag, shakes off the metal dust on the cloth bag body to the unloading mechanism 3 for cleaning, avoids the dust accumulated on the cloth bag body for a long time to cause poor dust removal effect, has a dust cleaning function, improves the dust removal effect, reduces the number of replacement of the filter bag 522, and improves the working efficiency of the cloth bag dust collector. Moreover, the filter bag 522 is sleeved on the outer periphery of the filter bag frame 521, which facilitates replacement.

[0049] Specifically, the back blowing mechanism 4 comprises a back blowing device 41 arranged at the front side of the support 1 and a plurality of blowing pipes 42, the lower ends of the blowing pipes 42 are respectively communicated with the air outlet ends of the back blowing device 41, and the upper ends of the blowing pipes 42 penetrate into the dust removal tank 2; a plurality of the air injection ports are arranged at the side walls of the blowing pipes 42.

[0050] The back blowing device 41 can refer to an existing automatic cleaning control system, which comprises a control module, an air tank, a differential pressure sensor, a compressed air manifold and an electromagnetic valve. The control module monitors the pressure difference between the inlet and outlet of the bag-type dust collector through the differential pressure sensor. When the pressure difference reaches a preset value, it indicates that the surface of the filter bag 522 has accumulated a large amount of dust and needs to be cleaned. When the pressure difference exceeds the set threshold value, the differential pressure sensor will send a signal to activate the control module. At this time, compressed air is supplied from the air tank to the compressed air manifold. The compressed air manifold is responsible for uniformly distributing compressed air to each blowing pipe 42. The compressed air manifold usually has multiple outlets, each corresponding to a group of blowing pipes 42. After the blowing pipe 42 is connected to the compressed air, it will inject compressed air at high speed into the inside of the filter bag, generating a transient reverse airflow to blow off the dust adhering to the outer surface of the filter bag 522.

[0051] With the above structure, it can be ensured that the compressed air can be effectively delivered to the filter bag 522 to clean the dust on the outer surface of the filter bag 522.

[0052] Specifically, the air guide structure 523 comprises a fixed sleeve 5231, a first air guide plate 5232 and a second air guide plate 5233.

[0053] The fixed sleeve 5231 is sleeved on the front end of the filter bag frame 521, the front end of the first air guide plate 5232 is arranged on the inner wall of one side of the fixed sleeve 5231, and the front end of the second air guide plate 5233 is arranged on the inner wall of the other side of the fixed sleeve 5231; the rear ends of the first air guide plate 5232 and the second air guide plate 5233 are both provided with air guide sheets 5234, and the air guide sheets 5234 are both arranged outwardly inclined; the two air guide sheets cooperatively form a horn-shaped air guide area, and the air guide area is communicated with the opening of the filter bag 522.

[0054] The fixed sleeve 5231 functions to fix the first air guide plate 5232 and the second air guide plate 5233, and the first air guide plate 5232 and the second air guide plate 5233 cooperate to form a channel to enable compressed air to enter the air guide area from the air injection inlet 520. The two air guide plates 5234 are outwardly inclined to form a horn shape; the distance between the first air guide plate 5232 and the second air guide plate 5233 is short, forming a narrow throat, and the distance between the two air guide plates 5234 gradually increases, forming a wide outlet. When the compressed air passes through the narrow throat, the air flow velocity increases, and the pressure decreases, thereby generating a low-pressure area at the throat; the low-pressure area helps to attract the surrounding air to enter the inside of the filter bag 522 together, forming a larger air flow, and helping to strip the dust on the filter bag 522.

[0055] Specifically, the dust removal box 2 comprises a box body 21, an air inlet platform 22 and an air outlet platform 23; the box body 21 is used for accommodating the back flushing mechanism 4 and the dust removal cloth bag module 5; the air inlet platform 22 and the air outlet platform 23 are respectively arranged at the top end proximal end of the box body 21, the air outlet platform 23 is communicated with the front side wall of the box body 21, and the top surface of the air outlet platform 23 is provided with an air outlet 230; the air inlet platform 22 is communicated with the rear side wall of the box body 21, and the top surface of the air inlet platform 22 is provided with an air inlet 220;

[0056] A plurality of cleaning chambers are arranged on the front side of the box body 21, the positions of the cleaning chambers are matched with the positions of the cloth bag mounting hole groups, and the cleaning chambers are all provided with front maintenance doors 24;

[0057] A plurality of back maintenance openings are arranged on the rear side of the box body 21, the positions and the number of the back maintenance openings are matched with the positions and the number of the cloth bag mounting hole groups, and the back maintenance openings are all provided with back maintenance doors 25.

[0058] By adopting the above structure, the front side and the rear side of the box body 21 are both provided with maintenance doors, the filter bag 522 and the filter bag frame 521 can be installed and removed from the front side or the rear side, and the maintenance personnel can easily contact the filter bag 522 and other components in the inside.

[0059] The maintenance personnel can replace and maintain the filter bag from the front side without stopping the equipment or only needing to stop the equipment for a short time, so that the work efficiency is greatly improved, the maintenance cost is reduced, the convenience of maintenance is improved, the downtime is reduced, and the maintenance cost is reduced, and the utility model is suitable for application scenes with limited space or frequent replacement of filter bags.

[0060] In a preferable embodiment of the utility model, the front maintenance door 24 and the back maintenance door 25 are provided with quick opening and locking devices, and the time and the effort required for opening and closing the maintenance doors can be reduced.

[0061] The air inlet platform 22 and the air outlet platform 23 are arranged on the top of the box body 21, the air to be filtered enters the box body 21 from the air inlet 220, the metal dust with a certain weight is settled in the box body 21, and the dust is attached to the filter bag 522 after meeting the filter bag 522, and the air passes through the multi-layer filter bag matrix and is discharged from the air outlet 230 on the air outlet platform 23 on the other side, so that the purpose of filtering out the metal dust is achieved.

[0062] Specifically, the box body 21 is provided with a first air equalizing plate 211, a second air equalizing plate 212 and a third air equalizing plate 213, and the first air equalizing plate 211, the second air equalizing plate 212 and the third air equalizing plate 213 are located above the dust cloth bag unit 52.

[0063] The first air equalizing plate 211 is arranged on the front side of the air outlet end of the air inlet platform 22 along the left-right direction, and the lower end of the first air equalizing plate 211 is arranged obliquely to one side of the air inlet platform 22; the third air equalizing plate 213 is arranged on the rear side of the air inlet end of the air outlet platform 23 along the left-right direction; and the second air equalizing plate 212 is arranged between the first air equalizing plate 211 and the third air equalizing plate 213 along the left-right direction.

[0064] The first air equalizing plate 211, the second air equalizing plate 212 and the third air equalizing plate 213 play a role of airflow guiding, preventing the air to be filtered from being directly discharged through the air outlet 230 on the air outlet platform 23 after entering the box body 21, and making the airflow flow more smoothly in the entire pipeline or equipment, reducing the dead angle or vortex area of the airflow.

[0065] By adopting the above structure, the airflow path in the bag filter is optimized, the gas is more uniformly distributed to all filter bags 522, the dead angle area is reduced, and the effective use area of each filter bag 522 is improved.

[0066] Specifically, the filter bag fixing frame 51 comprises a filter bag fixing plate 511, a connecting cross rod 512, a reinforcing rib 513 and a plurality of partition plates 514.

[0067] The filter bag fixing plate 511 separates the dust removal box 2 into a dust chamber and a clean air chamber, and a plurality of groups of bag mounting holes are arranged on the filter bag fixing plate 511; the front ends of the plurality of partition plates 514 are connected with the inner wall of the front side of the dust removal box 2, and the rear ends of the plurality of partition plates 514 are connected with the filter bag fixing plate 511.

[0068] The partition plate 514, the filter bag fixing plate 511 and the dust removal box 2 cooperate to form a plurality of cleaning zones; the cleaning zones are separated into a plurality of cleaning chambers, and each cleaning chamber contains at least one group of bag mounting holes; and the partition plates 514 are provided with a plurality of avoidance holes 5140 for the purge pipes 42 to pass through.

[0069] One end of the connecting crossbar 512 is connected with the filter bag fixing plate 511, and the other end of the connecting crossbar 512 is connected with the reinforcing rib 513, and the reinforcing rib 513 is connected with the front inner wall of the dust removal box 2.

[0070] The connecting crossbar 512 is used for supporting the filter bag fixing plate 511, and improving the overall stability of the filter bag fixing frame 51. The reinforcing rib 513 can effectively increase the bending resistance, compression resistance and tensile strength of the connecting crossbar 512, and further improve the carrying capacity of the entire filter bag fixing frame 51.

[0071] Through the cooperation of the partition plate 514, the filter bag fixing plate 511 and the dust removal box 2, multiple cleaning areas are formed, and the cleaning areas are further divided into multiple cleaning chambers, so that the maintenance personnel can open the front access door 24 of the corresponding area as needed, and the maintenance personnel can easily access the filter bag 522 and other components in the corresponding area, avoiding the cleaning chambers in other areas from being in contact with the outside, reducing the leakage of metal dust in the box body 21 to the outside, and reducing the safety hazard.

[0072] Preferably, the top of the dust removal box 2 is provided with a plurality of explosion venting sheets 26, and the plurality of explosion venting sheets 26 are arranged in the left-right direction.

[0073] When processing metal dust with explosive danger, such as aluminum powder, magnesium powder, titanium powder, etc., such dust may explode under the action of an ignition source when reaching a certain concentration in the air, causing serious consequences. The explosion venting sheet 26 can release the high internal pressure of the box body 21 by breaking when an explosion occurs, thereby protecting the main structure of the bag-type dust collector from damage.

[0074] Since the high-pressure gas generated by the explosion will naturally spread upward, the explosion-proof plate is arranged at the top of the dust collector, so as to ensure that the high pressure in the equipment is first released upward, avoiding damage to the bottom and the surrounding caused by the shock wave when the pressure is released.

[0075] Specifically, the unloading mechanism 3 comprises at least one unloading unit, the unloading unit comprises a dust hopper 31 and an unloader 32, the top of the dust hopper 31 is in communication with the bottom of the dust removal box 2, the bottom of the dust hopper 31 is provided with a discharge port, and the unloader 32 is arranged at the discharge port and is used for controlling the opening or closing of the discharge port; the support 1 is sleeved on the outer periphery of the dust hopper 31.

[0076] The dust hopper 31 is in communication with the dust collection bin through an external dust collection pipeline, and the dust hopper 31 is responsible for collecting and storing the dust separated from the filter bag 522. The unloader 32 is responsible for discharging the metal dust out of the dust hopper 31 and sending it to the subsequent processing link. The structure of the dust hopper 31 and the unloader 32 can refer to the ash hopper and the unloading device of the existing bag-type dust collector.

[0077] In one specific embodiment of the present application, three dust hoppers 31 are provided, and the dust hoppers 31 are arranged side by side, and the three dust hoppers 31 are all communicated with the bottom of the box body 21, and the discharge ports of the three dust hoppers 31 are all provided with discharge devices 32, and the three discharge devices 32 can simultaneously discharge the dust separated out from the dust removal box 2.

[0078] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the present application, and cannot be interpreted as limiting the protection scope of the present application in any way. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without creative labor, and these equivalent variations or replacements are all included in the scope defined by the claims of the present application.

Claims

1. A bag filter dust collector, characterized in that, Includes a support frame, dust collection box, unloading mechanism, back-blowing mechanism, and dust collection bag module; The bottom of the dust collection box is connected to the unloading mechanism, which is used to support the dust collection box; the bracket is located below the dust collection box and is fitted around the outer periphery of the unloading mechanism. The dust collector bag module includes a filter bag holder and multiple dust collector bag units. The filter bag holder is located inside the dust collector box and has multiple rows of bag mounting holes, each row containing multiple spaced-apart bag mounting holes. Each dust collector bag unit includes a filter bag frame, a filter bag, and an air guide structure. The filter bag is fitted around the outer periphery of the filter bag frame. The front end of the filter bag frame extends from the filter bag, and the air guide structure is fitted around the front end of the filter bag frame. The front end face of the filter bag frame has an air inlet. One end of the air guide structure is connected to the air inlet, and the other end of the air guide structure is connected to the opening of the filter bag. The filter bag frame is detachably connected to the bag mounting holes. The back-blowing mechanism is located in the dust collection box and has multiple air jets, the positions of which are adapted to the air jet inlet.

2. The bag filter dust collector according to claim 1, characterized in that, The back-blowing mechanism includes a back-blowing device and multiple blow pipes. The back-blowing device is located on the front side of the support. The lower ends of the multiple blow pipes are respectively connected to the air outlet of the back-blowing device, and the upper ends of the blow pipes are inserted into the dust collection box. Multiple air jets are spaced apart on the side wall of the blow pipes.

3. A bag filter dust collector according to claim 1, characterized in that, The air guiding structure includes a fixed sleeve, a first air guiding plate, and a second air guiding plate; The fixing sleeve is fitted onto the front end of the filter bag frame. The front end of the first air guide plate is located on one inner wall of the fixing sleeve, and the front end of the second air guide plate is located on the other inner wall of the fixing sleeve. The rear ends of the first and second air guide plates are provided with air guide vanes, which are all inclined outwards. The two air guide vanes cooperate to form a trumpet-shaped air guide area, which is connected to the opening of the filter bag.

4. A bag filter dust collector according to claim 1, characterized in that, The dust collection box includes a box body, an air inlet platform, and an air outlet platform; the box body is used to house the back-blowing mechanism and the dust collector bag module; the air inlet platform and the air outlet platform are respectively located near the top of the box body, the air outlet platform is connected to the front side wall of the box body, and the top surface of the air outlet platform is provided with an air outlet; the air inlet platform is connected to the rear side wall of the box body, and the top surface of the air inlet platform is provided with an air inlet. The front side of the housing is provided with multiple cleaning chambers, the positions of which are adapted to the positions of the bag mounting hole groups, and each cleaning chamber is equipped with a front inspection door; The rear side of the box is provided with multiple rear inspection openings. The position and number of the rear inspection openings are adapted to the position and number of the bag installation hole group. Each rear inspection opening is equipped with a rear inspection door.

5. A bag filter dust collector according to claim 4, characterized in that, The housing is equipped with a first air distribution plate, a second air distribution plate, and a third air distribution plate, all of which are located above the dust collector bag unit. The first air distribution plate is disposed in the left-right direction at the front of the air outlet end of the air inlet platform, and the lower end of the first air distribution plate is inclined towards one side of the air inlet platform; the third air distribution plate is disposed in the left-right direction at the rear of the air inlet end of the air outlet platform; the second air distribution plate is disposed in the left-right direction between the first air distribution plate and the third air distribution plate.

6. A bag filter dust collector according to claim 4, characterized in that, The filter bag fixing frame includes a filter bag fixing plate, a connecting crossbar, reinforcing ribs, and multiple partition plates; The filter bag fixing plate divides the dust collection box into a dust chamber and a clean air chamber, and multiple rows of filter bag mounting holes are arranged on the filter bag fixing plate; the front ends of multiple partition plates are connected to the front inner wall of the dust collection box, and the rear ends of multiple partition plates are connected to the filter bag fixing plate. The partition plate, filter bag fixing plate, and dust collection box work together to form a multi-layer cleaning zone; the cleaning zone is divided into multiple cleaning chambers, and each cleaning chamber contains at least one row of filter bag mounting holes; the partition plate is provided with multiple clearance holes at intervals for the passage of the blow pipe; One end of the connecting crossbar is connected to the filter bag fixing plate, and the other end of the connecting crossbar is connected to the reinforcing rib. The reinforcing rib is connected to the front inner wall of the dust collector.

7. A bag filter dust collector according to claim 1, characterized in that, The top of the dust collector is provided with multiple explosion relief discs, which are spaced apart in the left-right direction.

8. A bag filter dust collector according to claim 1, characterized in that, The unloading mechanism includes at least one unloading unit, which includes a dust hopper and a discharger. The top of the dust hopper is connected to the bottom of the dust collection box. The bottom of the dust hopper is provided with a discharge port. The discharger is located at the discharge port and is used to control the opening or closing of the discharge port. The support is sleeved on the outer periphery of the dust hopper.

Images