Rapid sealing matching device for filter cartridge of anti-explosion dust remover

Abstract

The rapid sealing matching device comprises a partition plate, a to-be-filtered bin is arranged on the lower side of the partition plate, and a filtered bin is arranged on the upper side of the partition plate; a plurality of rows of trumpet-shaped vertically-through filter cartridge air outlet nozzles are integrally arranged on the upper side of the partition plate in an array manner; a plurality of sliding rails which are arranged in parallel at equal intervals are horizontally and fixedly mounted on the lower side of the partition plate, a plurality of filter cartridges are movably supported between any two adjacent sliding rails, and in an unlocked state, the filter cartridge between any two adjacent sliding rails can slide along the direction of the sliding rails under the action of external force to coaxially align to the corresponding filter cartridge air outlet nozzle above; a tedious flange plate connecting mode is avoided in the sealing process, and after the filter cartridge slides to a preset position along the guide rail, rapid sealing can be achieved by opening the corresponding electromagnet.

Description

Technical Field

[0001] The invention belongs to the field of explosion-proof dust removal filter cartridge replacement. Background Art

[0002] Dust will accumulate on the surface of the filter cartridge of a filtering dust collector over time, thereby inhibiting the permeability of gas. Therefore, the more frequently the filter cartridge of a filtering dust collector is replaced, the lower its filtration efficiency, flow rate and energy consumption. The replacement process of the filter cartridge of an existing filtering dust collector is cumbersome. When disassembling, it is necessary to unscrew the box bolts on the top of the dust collector box, and then lift the upper shell of the dust collector box through a lifting device, and use tools to loosen the multiple flange bolts that fix the filter cartridge one by one, and then open the inspection door to take the fixed filter cartridge for removal, so as to realize the disassembly of the filter cartridge; conversely, when installing the filter cartridge, it is also necessary to lock and seal the filter cartridge with multiple flange bolts, and the process of removing the upper cover of the dust collector box is cumbersome and complicated. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a quick sealing matching device for an explosion-proof dust collector filter cartridge. The sealing process avoids the cumbersome flange connection method. After the filter cartridge slides along the guide rail to a predetermined position, the corresponding electromagnet is turned on to achieve quick sealing.

[0004] Technical solution: To achieve the above-mentioned purpose, the invention provides a quick sealing and matching device for an explosion-proof dust collector filter cartridge, comprising a partition, the lower side of which is a chamber to be filtered and the upper side of which is a chamber that has been filtered;

[0005] A plurality of trumpet-shaped filter cartridge air outlet nozzles extending upward and downward are arranged in an integrated array on the upper side of the partition; a plurality of equidistant and parallel slide rails are horizontally fixedly installed on the lower side of the partition, and a plurality of filter cartridges are movably supported between any two adjacent slide rails. In an unlocked state, the filter cartridges between any two adjacent slide rails can slide along the slide rail direction under the action of external force to be coaxially aligned with the corresponding filter cartridge air outlet nozzle above.

[0006] Furthermore, an annular sealing member is coaxially arranged at the upper end of each filter cartridge; the outer diameter of the annular sealing member is larger than the outer diameter of the filter cartridge;

[0007] Support slide bars are integrally extended along the length direction on both sides of each slide rail; the two support slide bars on the side close to each other of the two slide rails support the lower surfaces of both sides of the annular sealing component at the upper end of the filter cartridge upwards; in the unlocked state, there is a gap between the upper end of the annular sealing component and the lower surface of the partition.

[0008] Furthermore, a plurality of array-distributed electromagnets are fixedly installed in the to-be-filtered bin via a bracket;

[0009] An iron plate is coaxially fixed on the lower end wall of each filter cartridge; when any filter cartridge slides along the slide rail to be coaxially aligned with the corresponding filter cartridge air outlet nozzle above, the iron plate at the lower end of the filter cartridge just coaxially corresponds to an electromagnet directly above. When the electromagnet is energized, a downward electromagnetic pulling force is formed on the upper filter cartridge under the action of the electromagnetic force, and the annular sealing component automatically seals with the lower surface of the partition under the transmission of the electromagnetic pulling force.

[0010] Furthermore, an annular inner edge is coaxially connected to the upper end of the filter cartridge, and the annular inner edge is composed of an integrated lower horizontal ring wall, an upper horizontal ring wall and a vertical ring wall; the upper and lower ends of the vertical ring wall are respectively connected to the inner circles of the upper horizontal ring wall and the lower horizontal ring wall along the contour; the outer circle of the lower horizontal ring wall is connected to the upper end of the filter cartridge along the contour, and the inner circle of the vertical ring wall is the air outlet of the filter cartridge.

[0011] Furthermore, the annular sealing component includes a horizontal ring, and the inner ring, the middle ring and the outer ring on the upper side of the horizontal ring are respectively integrally provided with an inner ring vertical ring wall, a middle ring vertical ring wall and an outer ring vertical ring wall, the inner ring vertical ring wall is between the upper horizontal ring wall and the lower horizontal ring wall, and the inner ring vertical ring wall is slidingly matched with the outer ring of the vertical ring wall; the lower surface of the horizontal ring is limitedly matched with the upper surface of the lower horizontal ring wall, there is a travel gap between the upper end face of the inner ring vertical ring wall and the upper horizontal ring wall, and the outer ring of the upper horizontal ring wall is slidingly or gap-matched with the inner wall of the middle ring vertical ring wall; the lower surfaces on both sides of the horizontal ring are respectively held upward by two adjacent support slides;

[0012] A horizontal annular elastic wall is coaxially arranged between the middle circle vertical ring wall and the outer circle vertical ring wall, and an elastic wall bonding ring edge is integrally arranged on one side of the middle circle vertical ring wall and the outer circle vertical ring wall on the upper part close to each other, and the inner circle and the outer circle of the horizontal annular elastic wall are respectively bonded along the contour by a sealing adhesive to the lower surface of the two elastic wall bonding ring edges a; the lower side of the horizontal annular elastic wall is an annular hydraulic chamber a;

[0013] An annular elastic wall with a circular arc convex cross section is coaxially arranged between the middle circle vertical ring wall and the inner circle vertical ring wall, and a b elastic wall bonding ring edge is integrally arranged on the side where the middle circle vertical ring wall and the inner circle vertical ring wall are close to each other, and the inner circle and the outer circle of the annular elastic wall with a circular arc convex cross section are respectively bonded along the contour by a sealing adhesive to the lower surface of the two b elastic wall bonding ring edges; the lower side of the annular elastic wall with a circular arc convex cross section is a b annular hydraulic chamber;

[0014] The lower part of the middle circle vertical ring wall is horizontally hollowed out with a plurality of connecting holes, and the connecting holes connect the a ring-shaped hydraulic chamber with the b ring-shaped hydraulic chamber; the ring-shaped elastic wall with a circular arc convex cross section supports the upper horizontal ring wall of the column upward.

[0015] Furthermore, the horizontal annular elastic wall and the annular elastic wall with a circular arc convex cross section are both made of elastic rubber material.

[0016] Furthermore, both the annular hydraulic chamber a and the annular hydraulic chamber b are filled with hydraulic oil.

[0017] Furthermore, a filter cartridge quick sealing installation method of a filter cartridge quick sealing matching device for an explosion-proof dust collector is characterized in that:

[0018] Open the inspection door on the side of the dust collector filter box, slide the annular sealing component on the upper end of a filter cartridge horizontally between two adjacent slide rails, and make the two supporting slide bars on the side of the two adjacent slide rails close to each other hold up the lower surfaces of both sides of the annular sealing component on the upper end of the filter cartridge; make the filter cartridge between the two adjacent slide rails gradually slide along the slide rail direction under the action of external force until the coaxial center is aligned with the corresponding filter cartridge air outlet nozzle above, and at this time control the electromagnet under the filter cartridge to be energized.

[0019] Beneficial effect: The sealing process of the explosion-proof dust collector filter cartridge of the present invention does not rely on the cumbersome flange connection method. After the filter cartridge slides along the guide rail to a predetermined position, quick sealing can be achieved by turning on the corresponding electromagnet. When disassembling, only the corresponding electromagnet needs to be turned off to release the sealing and biting state, and then the cartridge can be slid out along the guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the device;

[0021] Figure 2 for Figure 1 An enlarged schematic diagram of one of the three groups;

[0022] Figure 3 for Figure 1 A three-dimensional schematic diagram after the partition is hidden on the basis of FIG.

[0023] Figure 4 It is a cross-sectional view structure of the filter cartridge between two adjacent slide rails when it slides along the slide rail direction under the action of external force;

[0024] Figure 5 for Figure 4 An enlarged schematic diagram of the area marked 90. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] As attached Figures 1 to 5The shown device is a quick sealing and matching device for an explosion-proof dust collector filter cartridge, comprising a dust collector filter box, a horizontal partition 18 is arranged inside the dust collector filter box, the lower side of the partition 18 is a chamber to be filtered, and the upper side of the partition 18 is a filtered chamber; it also comprises a gas inlet pipe to be filtered and a filtered gas outlet pipe, the outlet end of the gas inlet pipe to be filtered is connected to the chamber to be filtered, the inlet end of the filtered gas outlet pipe is connected to the filtered chamber, and a negative pressure vacuum pump is arranged on the filtered gas outlet pipe; when the negative pressure vacuum pump is running, negative pressure will be formed in the filtered chamber, so the gas in the chamber to be filtered on the lower side of the partition 18 passes through a number of filter cartridges 4 under the action of negative pressure and reaches the filtered chamber, thereby achieving the purpose of filtering.

[0027] like Figure 1 and 2 As shown, a plurality of rows of trumpet-shaped filter cartridge air outlet nozzles 17 extending upward and downward are integrally arranged in an array on the upper side of the partition 18; a plurality of equidistant and parallel slide rails 2 are horizontally fixedly installed on the lower side of the partition 18, and a plurality of filter cartridges 4 are movably supported between any two adjacent slide rails 2, and the side walls of the filter cartridges 4 are cylindrical filter walls made of porous materials, such as polyester filter cartridges, etc. In an unlocked state, the filter cartridges 4 between any two adjacent slide rails 2 can slide along the direction of the slide rail 2 under the action of external force to the coaxial center and align with the corresponding filter cartridge air outlet nozzle 17 above.

[0028] An annular sealing member 50 is coaxially arranged at the upper end of each filter cartridge 4; the outer diameter of the annular sealing member 50 is larger than the outer diameter of the filter cartridge 4, and supporting slide bars 3 are integrally arranged on both sides of each slide rail 2 extending along the length direction; the two supporting slide bars 3 on the side close to each other of the two slide rails 2 upwardly support the lower surfaces of both sides of the annular sealing member 50 at the upper end of the filter cartridge 4; in the unlocked state, there is a gap 19 between the upper end of the annular sealing member 50 and the lower surface of the partition 18, so as to facilitate sliding, such as Figure 1 and 2 shown.

[0029] A plurality of electromagnets 15 in a fixed state and distributed in an array are fixedly installed in the filter bin by means of a bracket; an iron plate 16 is coaxially fixedly arranged on the lower end wall of each filter cartridge 4; when any filter cartridge 4 slides along the slide rail 2 to be coaxially aligned with the corresponding filter cartridge air outlet nozzle 17 above, the iron plate 16 at the lower end of the filter cartridge 4 just coaxially corresponds to an electromagnet 15 directly above, and when the electromagnet 15 is energized, a downward electromagnetic pulling force is formed on the upper filter cartridge 4 under the action of the electromagnetic force, and the annular sealing component 50 automatically seals with the lower surface of the partition 18 under the transmission of the electromagnetic pulling force.

[0030] like Figure 4 and 5As shown, the upper end of the filter cartridge 4 is coaxially and integrally connected with an annular inner edge 1, and the annular inner edge 1 is composed of an integrated lower horizontal ring wall 1.3, an upper horizontal ring wall 1.1 and a vertical ring wall 1.2; the upper and lower ends of the vertical ring wall 1.2 are respectively integrally connected to the inner circles of the upper horizontal ring wall 1.1 and the lower horizontal ring wall 1.3 along the contour; the outer circle of the lower horizontal ring wall 1.3 is integrally connected to the upper end of the filter cartridge 4 along the contour, and the inner circle of the vertical ring wall 1.2 is the filter cartridge air outlet 70, and in the installed state, the filter cartridge air outlet 70 is coaxially connected to the corresponding filter cartridge air outlet nozzle 17.

[0031] like Figure 4 and 5 As shown, the annular sealing component 50 includes a horizontal ring 14, and the inner ring, middle ring and outer ring on the upper side of the horizontal ring 14 are respectively integrally provided with an inner ring vertical ring wall 13, a middle ring vertical ring wall 9 and an outer ring vertical ring wall 43, the inner ring vertical ring wall 13 is between the upper horizontal ring wall 1.1 and the lower horizontal ring wall 1.3, and the inner ring vertical ring wall 13 is slidingly matched with the outer ring of the vertical ring wall 1.2; the lower surface of the horizontal ring 14 is limitedly matched with the upper surface of the lower horizontal ring wall 1.3, and there is a travel gap 60 between the upper end face of the inner ring vertical ring wall 13 and the upper horizontal ring wall 1.1, and the outer ring of the upper horizontal ring wall 1.1 is slidingly or gap-matched with the inner wall of the middle ring vertical ring wall 9; the lower surfaces on both sides of the horizontal ring 14 are respectively supported upward by two adjacent support slides 3.

[0032] A horizontal annular elastic wall 5 is coaxially arranged between the middle vertical annular wall 9 and the outer vertical annular wall 43. An elastic wall bonding ring edge 6 is integrally arranged on one side of the middle vertical annular wall 9 and the outer vertical annular wall 43, and the inner and outer rings of the horizontal annular elastic wall 5 are respectively bonded to the lower surfaces of the two elastic wall bonding ring edges 6 along the contour by a sealing adhesive; the lower side of the horizontal annular elastic wall 5 is an annular hydraulic chamber 10;

[0033] An annular elastic wall 8 with a circular arc convex cross section is coaxially arranged between the middle circle vertical ring wall 9 and the inner circle vertical ring wall 13. A b elastic wall bonding ring edge 7 is integrally arranged on the side where the middle circle vertical ring wall 9 and the inner circle vertical ring wall 13 are close to each other. The inner and outer circles of the annular elastic wall 8 with a circular arc convex cross section are respectively bonded to the lower surfaces of the two b elastic wall bonding ring edges 7 along the contour by a sealing adhesive; the lower side of the annular elastic wall 8 with a circular arc convex cross section is a b annular hydraulic chamber 12;

[0034] The lower part of the middle vertical ring wall 9 is horizontally hollowed out with a plurality of connecting holes 11, and the connecting holes 11 connect the a-shaped hydraulic chamber 10 with the b-shaped hydraulic chamber 12; the annular elastic wall 8 with a circular arc convex cross section supports the upper horizontal ring wall 1.1 upward;

[0035] The horizontal annular elastic wall 5 and the annular elastic wall 8 with a circular arc convex cross section are both made of elastic rubber material; the annular hydraulic chamber a 10 and the annular hydraulic chamber b 12 of the press are both filled with hydraulic oil.

[0036] The sealing installation process of any filter cartridge 4:

[0037] After opening the inspection door on the side of the dust collector filter box, slide the annular sealing member 50 on the upper end of a filter cartridge 4 horizontally between two adjacent slide rails 2, and make the two supporting slide bars 3 on one side of the two adjacent slide rails 2 close to each other to hold up the lower surfaces of both sides of the annular sealing member 50 on the upper end of the filter cartridge 4; at this time, the annular elastic wall 8 with a circular arc convex cross section on the annular sealing member 50 holds up the upper horizontal annular wall 1.1, and the upper horizontal annular wall 1.1 applies the gravity of the filter cartridge 4 downward to the annular elastic wall 8 with a circular arc convex cross section in the form of pressure N, so that the annular hydraulic chamber 12 The internal pressure increases due to the extrusion force, and the pressure in the b annular hydraulic chamber 12 is transmitted to the a annular hydraulic chamber 10 through the connecting hole 11. The increased internal pressure in the a annular hydraulic chamber 10 pushes upward the originally horizontally tightened horizontal annular elastic wall 5, so that the horizontal annular elastic wall 5 at this time is slightly arched upward, and the highest point of the slightly arched horizontal annular elastic wall 5 is still not higher than the upper surface of the bonding ring edge 6 of the two a elastic walls. Therefore, at this time, there is still a gap 19 between the uppermost end of the annular sealing member 50 and the lower surface of the partition plate 18, so as to facilitate the subsequent sliding before alignment;

[0038] Subsequently, the annular sealing member 50 at the upper end of the filter cartridge 4 is pushed along the length direction of the slide rail 2 by a manipulator or a manual push rod, so that the filter cartridge 4 between the two adjacent slide rails 2 gradually slides along the slide rail 2 under the action of external force to the coaxial center aligned with the corresponding filter cartridge air outlet nozzle 17 above. At this time, the iron plate 16 at the lower end of the filter cartridge 4 is just coaxially corresponding to an electromagnet 15 directly above. At this time, the electromagnet 15 below the filter cartridge 4 is controlled to be energized, and a downward electromagnetic pulling force is formed on the upper filter cartridge 4 under the action of the electromagnetic force; under the action of the electromagnetic force, the upper horizontal annular wall 1.1 applies downward force to the circular cross-section The pressure N of the arc-convex annular elastic wall 8 is significantly increased, and the upper horizontal annular wall 1.1 further presses the arc-convex annular elastic wall 8 downward to become horizontal, so that the hydraulic oil in the b annular hydraulic chamber 12 is squeezed into the a annular hydraulic chamber 10 through the connecting hole 11 under the action of pressure, so that the originally slightly arched horizontal annular elastic wall 5 is further arched upward, and the highest point of the significantly arched horizontal annular elastic wall 5 is sealed and pressed against the lower surface of the partition 18, thereby realizing the sealing cooperation between the annular sealing component 50 and the partition 18, and then realizing the sealing installation process of the filter cartridge.

[0039] In summary, the sealing process of the explosion-proof dust collector filter cartridge of this scheme does not rely on the cumbersome flange connection method. After the filter cartridge slides along the guide rail to the predetermined position, the corresponding electromagnet can be turned on to achieve rapid sealing. When disassembling, it only needs to close the corresponding electromagnet to release the sealing and biting state, and then slide out along the guide rail. The energy consumption of the electromagnet of this scheme is negligible compared to the overall energy consumption.

[0040] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A quick sealing and matching device for an explosion-proof dust collector filter cartridge, characterized in that: It comprises a partition (18), the lower side of the partition (18) is a chamber to be filtered, and the upper side is a chamber that has been filtered; The upper side of the partition (18) is provided with a plurality of trumpet-shaped filter cartridge air outlet nozzles (17) which are passed through from top to bottom in an integrated array; the lower side of the partition (18) is provided with a plurality of equally spaced parallel slide rails (2) which are fixedly installed horizontally, and a plurality of filter cartridges (4) are movably supported between any two adjacent slide rails (2); in an unlocked state, the filter cartridges (4) between any two adjacent slide rails (2) can slide along the slide rail (2) under the action of an external force to align with the corresponding filter cartridge air outlet nozzle (17) on the upper side with the same axis.

2. The explosion-proof dust collector filter cartridge quick sealing matching device according to claim 1, characterized in that: An annular sealing component (50) is coaxially arranged at the upper end of each filter cartridge (4); the outer diameter of the annular sealing component (50) is greater than the outer diameter of the filter cartridge (4); Supporting slide bars (3) are integrally provided on both sides of each slide rail (2) extending in the length direction; the two supporting slide bars (3) on one side of the two slide rails (2) close to each other support the lower surfaces of both sides of the annular sealing component (50) at the upper end of the filter cartridge (4) upwards; in the unlocked state, a gap (19) exists between the upper end of the annular sealing component (50) and the lower surface of the partition (18).

3. The explosion-proof dust collector filter cartridge quick sealing matching device according to claim 2, characterized in that: A plurality of electromagnets (15) distributed in an array are fixedly installed in the to-be-filtered bin via a bracket; An iron plate (16) is coaxially fixedly arranged on the lower end wall of each filter cartridge (4); when any filter cartridge (4) slides along the slide rail (2) to coaxially align with the corresponding filter cartridge air outlet nozzle (17) above, the iron plate (16) at the lower end of the filter cartridge (4) is just coaxially corresponding to an electromagnet (15) directly above, and when the electromagnet (15) is energized, a downward electromagnetic pulling force is generated on the upper filter cartridge (4) under the action of the electromagnetic force, and the annular sealing component (50) automatically seals with the lower surface of the partition (18) under the transmission of the electromagnetic pulling force.

4. The explosion-proof dust collector filter cartridge quick sealing matching device according to claim 3, characterized in that: The upper end of the filter cartridge (4) is coaxially connected to an annular inner edge (1), the annular inner edge (1) being composed of an integrated lower horizontal annular wall (1.3), an upper horizontal annular wall (1.1) and a vertical annular wall (1.2); the upper and lower ends of the vertical annular wall (1.2) are respectively connected along the contour to the inner circles of the upper horizontal annular wall (1.1) and the lower horizontal annular wall (1.3); the outer circle of the lower horizontal annular wall (1.3) is connected along the contour to the upper end of the filter cartridge (4), and the inner circle of the vertical annular wall (1.2) is the filter cartridge air outlet (70).

5. The explosion-proof dust collector filter cartridge quick sealing matching device according to claim 4, characterized in that: The annular sealing component (50) comprises a horizontal ring (14), wherein the inner ring, the middle ring and the outer ring on the upper side of the horizontal ring (14) are respectively provided with an inner ring vertical ring wall (13), a middle ring vertical ring wall (9) and an outer ring vertical ring wall (43), wherein the inner ring vertical ring wall (13) is between the upper horizontal ring wall (1.1) and the lower horizontal ring wall (1.3), and the inner ring vertical ring wall (13) is slidably matched with the outer ring of the vertical ring wall (1.2); the lower surface of the horizontal ring (14) is limitedly matched with the upper surface of the lower horizontal ring wall (1.3), a travel gap (60) is present between the upper end surface of the inner ring vertical ring wall (13) and the upper horizontal ring wall (1.1), and the outer ring of the upper horizontal ring wall (1.1) is slidably or clearance-matched with the inner wall of the middle ring vertical ring wall (9); the lower surfaces on both sides of the horizontal ring (14) are respectively held upward by two adjacent support slide bars (3); A horizontal annular elastic wall (5) is coaxially arranged between the middle vertical annular wall (9) and the outer vertical annular wall (43); an elastic wall bonding ring edge (6) is integrally arranged on the side of the middle vertical annular wall (9) and the outer vertical annular wall (43) that are close to each other; the inner and outer rings of the horizontal annular elastic wall (5) are respectively bonded to the lower surfaces of the two elastic wall bonding ring edges (6) along the contour by a sealing adhesive; the lower side of the horizontal annular elastic wall (5) is an annular hydraulic chamber (10); An annular elastic wall (8) with a circular arc convex cross section is coaxially arranged between the middle circle vertical ring wall (9) and the inner circle vertical ring wall (13); a b elastic wall bonding ring edge (7) is integrally arranged on the side where the middle circle vertical ring wall (9) and the inner circle vertical ring wall (13) are close to each other; the inner circle and the outer circle of the annular elastic wall (8) with a circular arc convex cross section are respectively bonded to the lower surface of the two b elastic wall bonding ring edges (7) along the contour by a sealing adhesive; the lower side of the annular elastic wall (8) with a circular arc convex cross section is a b annular hydraulic chamber (12); The lower part of the middle vertical ring wall (9) is hollowed out to form a plurality of communication holes (11), and the communication holes (11) connect the a ring-shaped hydraulic chamber (10) and the b ring-shaped hydraulic chamber (12) to each other; the annular elastic wall (8) with a circular arc convex cross section supports the upper horizontal ring wall (1.1) of the column upward.

6. The explosion-proof dust collector filter cartridge quick sealing matching device according to claim 5, characterized in that: The horizontal annular elastic wall (5) and the annular elastic wall (8) with a circular arc convex cross section are both made of elastic rubber material.

7. The explosion-proof dust collector filter cartridge quick sealing matching device according to claim 6, characterized in that: The a annular hydraulic chamber (10) and the b annular hydraulic chamber (12) are both filled with hydraulic oil.

8. The method for quickly sealing and installing a filter cartridge of a quick sealing matching device for an explosion-proof dust collector according to claim 6, characterized in that: Open the inspection door on the side of the dust collector filter box, slide the annular sealing component (50) at the upper end of a filter cartridge (4) horizontally between two adjacent slide rails (2), and make the two supporting slide bars (3) on the side of the two adjacent slide rails (2) close to each other to support the lower surfaces of both sides of the annular sealing component (50) at the upper end of the filter cartridge (4) upward; make the filter cartridge (4) between the two adjacent slide rails (2) gradually slide along the slide rail (2) under the action of external force until it is coaxially aligned with the corresponding filter cartridge air outlet nozzle (17) at the top, and at this time control the electromagnet (15) below the filter cartridge (4) to be energized.

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