A filter device with a replaceable filter cartridge

Abstract

The application is a filter device with replaceable filter core, comprising: a box with a horizontal partition plate, the partition plate is provided with a through hole, the partition plate divides the box into an upper chamber and a lower chamber, the side of the lower chamber is provided with an air inlet, the front side of the lower chamber is provided with an access hole, the side of the upper chamber is provided with an air outlet; the access hole is provided with a removable access cover; the bottom of the partition plate is vertically extended to at least two vertical and parallel extension plates; a side pull-out plate is slidably arranged between the two adjacent extension plates; at least one filter core is fixed to the side pull-out plate and a locking assembly; when the filter core needs to be replaced, the side pull-out plate and the two filter cores are pulled out forward, the new filter core is reassembled with the side pull-out plate, the side pull-out plate is pushed back into the box, the side pull-out plate is supported on the extension plates and is locked after moving back, and the filter core is conveniently and quickly replaced through the side pull-out mode.

Description

Technical Field

[0001] This invention relates to dust collectors, and more particularly to a filtration device with a side-replaceable filter element. Background Technology

[0002] For conventional baghouse dust collectors, dust-laden gas is introduced through the inlet and filtered by the filter element before being discharged through the outlet. After the dust collector has been working for a long time, a large amount of dust and impurities will adhere to the outer surface of the filter element. If the impurities and dust are not cleaned regularly, the flow resistance of the dust-laden gas entering the inlet will increase, resulting in a reduction in the gas filtration effect. Therefore, the filter element needs to be replaced after the dust collector has been working for a certain period of time.

[0003] Conventional filter cartridges are typically replaced by pulling them upwards from the top of the housing. Because the filter cartridge has a cage inside to provide internal support and prevent wrinkles from forming on the outer surface, sufficient headroom is required in the dust collector when replacing the cartridge so that it can be pulled upwards completely out of the dust collector. However, in workshop environments with limited ceiling height or equipment space, it is not possible to replace the filter cartridge by pulling it upwards.

[0004] In summary, how can we achieve convenient replacement of filter elements in dust collectors when the air clearance requirement is not met? Summary of the Invention

[0005] The technical problem to be solved by this invention is: how to achieve convenient replacement of filter elements in a dust collector when the air clearance condition is not met; To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: This invention relates to a filtration device with a side-replaceable filter element, comprising: a housing with a dust discharge port at the bottom and a horizontal partition inside, the partition having a through hole, the partition dividing the housing into an upper chamber and a lower chamber, an air inlet on one side of the lower chamber, an inspection port on the front side of the lower chamber, and an exhaust port on one side of the upper chamber; an inspection cover removably covering the inspection port; extension plates, at least two vertically parallel extension plates extending vertically downward from the bottom of the partition; a side drawer plate obliquely slidable between two adjacent extension plates; at least one filter element fixed at the side drawer plate; and a locking assembly that, when the side drawer plate and the filter element slide obliquely upward to their limit position, the locking assembly lifts the front side of the side drawer plate to a horizontal state and locks it with the partition plate, at which point the top opening of the filter element is concentric with the corresponding through hole.

[0006] Furthermore, the inspection cover and the inspection port are sealed together by a sealing strip.

[0007] Furthermore, the height of the inspection port is greater than the length of the filter element.

[0008] Furthermore, the extension plate is provided with at least two first support rods and a second support rod on one opposite side. The first support rods are evenly spaced along the front-back direction, and the second support rod is located on the rear side of the extension plate. The height of the second support rod is greater than the height of the first support rod. The side drawer plate has downward flanges on both sides. The bottom of the flange has a support surface that supports the first support rod. The support surface has a rearward oblique guide surface. A stop is provided at the connection between the guide surface and the support surface. When the side drawer plate is locked with the partition plate, the support surface disengages from the first support rod and the second support rod is pressed against the stop.

[0009] Furthermore, a pull rod is provided between the two flanges and on the front side of the flanges.

[0010] Furthermore, the locking assembly includes: a fixing member, wherein a fixing member is provided on the front side of the bottom of the partition plate, and a first locking hole is provided thereon; a second locking hole, wherein a second locking hole is provided through the front side of the side drawer; and a locking member, wherein when the first locking hole and the second locking hole are in a connected state, the locking member locks the fixing member and the side drawer together.

[0011] Furthermore, a sealing ring is provided on the top surface of the filter element to seal the filter element to the bottom surface of the partition plate.

[0012] The beneficial effects of this invention are as follows: This invention is a filtration device with a side-mounted filter element replacement mechanism. When the filter element needs to be replaced, the side-mounted plate along with the two filter elements is pulled out diagonally forward and downward. After reassembling the new filter element with the side-mounted plate, the side-mounted plate is pushed in diagonally backward and upward and then lifted and locked. This side-mounted method enables quick and portable replacement of the filter element. The side-mounted filter element replacement method does not require a certain amount of clearance or space in the dust collector. Only a certain amount of space needs to be left on the front side of the housing for easy disassembly and assembly of the filter element, thereby enabling rapid maintenance of the dust collector. In addition, multiple partitions are provided, and the side-mounted plate slides between adjacent partitions. In this way, when the side-mounted plate is moved to replace multiple filter elements in a group, other filter elements are not interfered with, thus realizing the individual and rapid replacement of a group of filter elements. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention, omitting the maintenance cover plate; Figure 3 This is a structural schematic diagram of the present invention, omitting the housing and inspection cover. Figure 4This is a structural diagram of the extension plate on one side of the partition, omitting the actual partition. Figure 5 yes Figure 3 A structural diagram omitting the filter element and separator; Figure 6 This is a schematic diagram of the filter element in its first state during installation; Figure 7 This is a schematic diagram of the filter element in its second state during installation; Figure 8 This is a schematic diagram of the filter element in its third state during installation; Figure 9 This is a schematic diagram of the filter element in its fourth state during installation; In the diagram: 1-box body, 11-ash discharge port, 12-air inlet, 13-inspection port, 2-partition plate, 21-through hole, 22-extension plate, 3-side draw plate, 31-flanged edge, 32-support surface, 33-guide surface, 34-stop, 4-filter element, 41-sealing ring, 5-inspection cover plate, 61-first support rod, 62-second support rod, 7-pull rod, 8-fixing component, 81-first locking hole, 82-second locking hole, 9-locking component. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0016] See Figure 1-3 This embodiment is a filter device with a side-replaceable filter element, comprising: a housing 1, with a ash discharge port 11 at the bottom of the housing 1, which opens periodically to allow large particulate impurities deposited in the housing 1 to be discharged; a horizontal partition 2 is provided inside the housing 1, with four through holes 21 arranged in a square array on the partition 2, dividing the housing 1 into an upper chamber and a lower chamber; an air inlet 12 is provided on the right side of the lower chamber, an inspection port 13 is provided on the front side of the lower chamber, and an exhaust port is provided on one side of the upper chamber. The inspection cover 5 is detachably installed on the inspection port 13; three vertical and parallel extension plates 22 are provided vertically downward at the bottom of the partition 2; the side pull plates 3 are respectively slidably installed between two adjacent extension plates 22, that is, the side pull plates 3 slide and cooperate with the extension plates 22 at an angle to the rear and upward or at an angle to the front and downward; the two filter elements 4 are fixed at the side pull plates 3; when the side pull plates 3 together with the filter elements 4 slide upward to the limit position, the locking assembly lifts the front side of the side pull plates 3 to a horizontal state and locks it with the partition 2. At this time, the top opening of the filter element 4 is concentric with the corresponding through hole 21.

[0017] When the filter element 4 needs to be replaced, open the inspection cover 5, unlock the locking assembly, and pull the side pull plate 3 along with the two filter elements 4 diagonally forward and downward or slide the side pull plate 3 along with the two filter elements 4 diagonally forward and downward. After reassembling the new filter element 4 with the side pull plate 3, push the side pull plate 3 diagonally backward and upward. The side pull plate 3 is supported on the extension plate 22 and moves diagonally backward and upward. When the side pull plate 3 moves to the limit position, lock the side pull plate 3 through the locking assembly. During the locking process, the front side of the side pull plate 3 is lifted up, changing the side pull plate 3 from the inclined state to the horizontal state. Finally, install the inspection cover 5 to realize the side pull replacement of the filter element 4. In this embodiment, filter element 4 is replaced by side-pull method. The side-pull method of replacing filter element 4 has no impact on the net air volume of the dust collector. Only a certain replacement space needs to be left on the front side of the housing 1. In addition, the vertical replacement method of filter element requires 30 minutes / filter element, while the side-pull replacement method shortens it to less than 10 minutes / filter element.

[0018] In some possible embodiments, in order to ensure the sealing between the inspection cover 5 and the inspection port 13 and to ensure that there is no gas leakage during the operation of the dust collector, this embodiment adopts a sealing connection between the inspection cover 5 and the inspection port 13 through a sealing strip. In this embodiment, a sealing strip is provided to ensure the airtightness of the inspection cover 5 installed at the inspection port 13.

[0019] In some possible embodiments, in order to ensure that the filter element can be completely removed from the box before replacement, this embodiment adopts a height of the inspection port 13 that is greater than the length of the filter element 4; In this embodiment, since a rat cage is provided inside the filter element 4, the filter element 4 will not bend when it is replaced. Therefore, the height of the inspection port 13 needs to be set to be greater than the length of the filter element 4 in order to remove the filter element from the box 1 for replacement.

[0020] See Figure 3-5In some possible embodiments, since a sealing ring 41 is provided on the top surface of the filter element 4, the sealing ring 41 seals the filter element 4 to the bottom surface of the partition 2. If the filter element 4 is installed by horizontally pulling the side-pull plate 3, the sealing ring 41 will always rub against the bottom surface of the partition 2 during the translation process, resulting in damage to the sealing ring 41, and consequently, poor sealing performance between the partition 2 and the filter element 4. To avoid the horizontal pulling installation method using the side-pull plate 3, this embodiment uses at least two first support rods 61 and a second support rod 62 provided on one side of the extension plate 22. The first support rods 61 are forward-facing... The second support rod 62 is positioned at equal intervals in the rear direction and is located on the rear side of the extension plate 22. The height of the second support rod 62 is greater than the height of the first support rod 61. The side drawer plate 3 has downwardly arranged flanges 31 on both sides. The bottom of the flanges 31 has a support surface 32 that supports the first support rod 61. The support surface 32 has a rearwardly arranged oblique guide surface 33. A stop 34 is provided at the connection between the guide surface 33 and the support surface 32. When the side drawer plate 3 is locked with the partition plate 2, the support surface 32 disengages from the first support rod 61 and the second support rod 62 is pressed against the stop 34. In this embodiment, see Figure 6 During the process of the side drawer 3 moving horizontally to the left relative to the extension plate 22, the flap support surface 32 first supports the two first support rods 61. At this time, the side drawer 3 is in a horizontal state, and the sealing ring 41 has a certain distance from the bottom surface of the partition plate 2. See Figure 7 Then the side drawer plate 3 continues to move to the left. When the guide surface 33 contacts the second support rod 62, the side drawer plate 3 is in an inclined state with the left side higher than the right side. At this time, the guide surface 33 of the side drawer plate 3 is supported on the second support rod 62, and the support surface 32 is only supported by the rightmost first support rod 61. See Figure 8 Then the side pull plate 3 continues to move diagonally to the upper left until the second support rod 62 abuts against the stop 34. At this time, the side pull plate 3 moves diagonally to the upper left to the limit position, and the upper left of the left filter element 4 contacts the partition plate 2. See Figure 9 Next, lift the left side of the side drawer 3 (or install the locking piece 9 between the front of the side drawer 3 and the fixing piece 8, and rotate the locking piece 9 to lift the left side of the side drawer 3), that is, rotate the side drawer 3 counterclockwise around the second support rod 62, and the support surface 32 disengages from the rightmost second support rod 62. At this time, the sealing ring 41 at the top of the two filter elements 4 contacts and seals with the bottom surface of the partition plate 2. At this time, the center line of the filter element 4 is coaxial with the center line of the through hole 21. Finally, the fixing piece 8 and the side drawer 3 are locked by the locking piece 9, so that the top of the filter element 4 and the bottom plate of the partition plate 2 are sealed and connected by the sealing ring 41. During the installation of the above filter element, the sealing ring 41 will not continuously contact the bottom of the partition 2, ensuring the sealing performance of the filter element 4 and the partition 2, while the sealing ring 41 will not be damaged, thus ensuring the sealing performance between the filter element 4 and the partition 2. Conversely, when it is necessary to disassemble and replace filter element 4, unlock the locking part 9, the side pull plate 3 slides out diagonally and then pulls out horizontally to replace filter element 4.

[0021] See Figure 4-5 In some possible embodiments, in order to facilitate the front and rear pulling of the side drawer, this embodiment adopts a pull rod 7 between the two flanges 31 and located on the front side of the flanges 31. In this embodiment, the operator holds the lever 7 to move the side drawer 3 back and forth.

[0022] See Figure 5 In some possible embodiments, to illustrate the specific structure of the locking assembly, this embodiment uses a locking assembly comprising: a fixing member 8, wherein the fixing member 8 is provided on the front side of the bottom of the partition 2, and a first locking hole 81 is provided thereon; a second locking hole 82, wherein the front side of the side drawer 3 is provided with a through second locking hole 82; and a locking member 9, wherein when the first locking hole 81 and the second locking hole 82 are in a connected state, the locking member 9 locks the fixing member 8 and the side drawer 3 in a locked connection. In this embodiment, when the side drawer 3 moves backward to its limit position and lifts the front side of the side drawer 3, the side drawer 3 approaches the fixing member 8, and the locking member 9 passes through the first locking hole 81 and the second locking hole 82 and is locked, thus realizing the locking of the side drawer 3 and the partition 2.

[0023] In some embodiments not shown, the locking assembly achieves the locking installation of the side pull plate 3 and the partition plate 2 by means of snap-fit, rotary lock, magnetic attraction, etc.; this device is not limited to dust collectors, but also protects the side pull replacement of filter elements in similar structures such as air filters and oil mist filters.

[0024] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A filtration device with a side-mounted filter element replacement capability, characterized in that, include: The box (1) has a horizontal partition (2) inside. The partition (2) has a through hole (21) and the partition (2) divides the box (1) into an upper chamber and a lower chamber. An air inlet (12) is provided on one side of the lower chamber and an inspection port (13) is provided on the front side of the lower chamber. Inspection cover (5), which is removably installed at the inspection port (13); Extension plate (22), at least two vertical and parallel extension plates (22) are provided at the bottom of the partition plate (2) extending vertically downward. A side drawer (3) is obliquely slidably disposed between two adjacent extension plates (22); At least one filter element (4) is fixed at the side drawer (3); When the side pull plate (3) and the filter element (4) slide obliquely upward to the limit position, the locking assembly lifts the front side of the side pull plate (3) to a horizontal state and locks it with the partition plate (2). At this time, the top opening of the filter element (4) is concentric with the corresponding through hole (21). The extension plate (22) is provided with at least two first support rods (61) and a second support rod (62) on one side. The first support rods (61) are provided at equal intervals in the front-back direction. The second support rod (62) is provided on the rear side of the extension plate (22). The height of the second support rod (62) is greater than the height of the first support rod (61). The side drawer (3) has flanges (31) on both sides facing downwards. The bottom of the flange (31) has a support surface (32) that supports the first support rod (61). The support surface (32) has an oblique guide surface (33) facing backwards. The connection between the guide surface (33) and the support surface (32) has a stop (34). When the side drawer (3) is locked to the partition (2), the support surface (32) disengages from the first support rod (61) and the second support rod (62) abuts against the stop (34).

2. The filter device with a side-replaceable filter element according to claim 1, characterized in that, The inspection cover (5) and the inspection port (13) are sealed together by a sealing strip.

3. The filter device with a side-replaceable filter element according to claim 1, characterized in that, The height of the inspection port (13) is greater than the length of the filter element (4).

4. The filter device with a side-replaceable filter element according to claim 1, characterized in that, A pull rod (7) is provided between the two flanges (31) and on the front side of the flanges (31).

5. A filter device with a side-replaceable filter element according to claim 1, characterized in that, The locking assembly includes: The fastener (8) is provided on the front side of the bottom of the partition (2), and a first locking hole (81) is provided thereon. The second locking hole (82) is provided through the front side of the side drawer (3). When the first locking hole (81) and the second locking hole (82) are in a connected state, the locking member (9) locks the fixing member (8) and the side drawer (3) in a locked connection.

6. A filter device with a side-replaceable filter element according to claim 1, characterized in that, The top surface of the filter element (4) is provided with a sealing ring (41), which seals the filter element (4) to the bottom surface of the partition plate (2).

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