Dust removal device on top of powder bin

Abstract

The present application provides a dust removal device on the top of a powder bin, comprising a box body, wherein a vertically distributed annular plate is provided inside the box body, wherein a partition plate rotatably connected thereto is provided at the middle position of the annular plate, wherein the partition plate and the annular plate divide the inside of the box body into a dust removal box and an exhaust box, wherein a plurality of annularly distributed through holes are provided on the partition plate, wherein each of the through holes is connected to a cage frame horizontally distributed inside the dust removal box, wherein a detachable filter bag is sleeved on the cage frame, wherein an inspection port is provided on the dust removal box, and a sealing door capable of closing the inspection port is provided on the dust removal box, wherein an air inlet pipe connected to the top of the powder bin is connected to the lower end of the dust removal box, and an exhaust structure is connected to the exhaust box. The present application only requires the staff to stand on the top of the powder bin to replace the filter bag, thereby improving the safety of the operation of replacing the filter bag.

Description

Technical Field

[0001] The present application relates to dust removal technology, and in particular to a dust removal device on the top of a powder bin. Background Art

[0002] In a concrete mixing plant, cement, mineral powder and other powdered raw materials are generally stored in a vertical powder silo. At present, the powder silo is generally fed by pneumatic conveying equipment. Therefore, when feeding the powder silo, in order to avoid excessive pressure inside the powder silo, a bag dust removal device is usually installed on the top of the powder silo to discharge the gas inside the powder silo and prevent the dust in the powder silo from leaking into the external environment.

[0003] However, the filter bags of the bag-type dust collector are usually arranged vertically, resulting in a relatively high overall height of the bag-type dust collector. When replacing the filter bags at a later stage, the staff needs to climb to the top of the shell of the bag-type dust collector to replace it, which poses a great safety risk. Utility Model Content

[0004] The present application provides a dust removal device on the top of a powder silo, which is used to solve the problem that when replacing the filter bag of the existing bag dust removal device installed on the top of the powder silo in the later stage, the staff needs to climb to the top of the bag dust removal device to replace the filter bag, which poses a safety risk.

[0005] The present application provides a dust removal device on the top of a powder bin, comprising a box body, wherein a vertically distributed annular plate is provided inside the box body, and a partition plate rotatably connected to the annular plate is provided in the middle of the annular plate;

[0006] The partition plate and the annular plate divide the interior of the box into a dust removal box and an exhaust box;

[0007] The partition plate is provided with a plurality of through holes distributed in an annular shape, each of the through holes is connected to a cage frame horizontally distributed inside the dust removal box, and a detachable filter bag is sleeved on the cage frame;

[0008] The dust removal box is provided with an inspection port, and the dust removal box is provided with a sealing door capable of closing the inspection port;

[0009] The lower end of the dust removal box is connected to an air inlet pipe connected to the top of the powder bin, and the exhaust box is connected to an exhaust structure.

[0010] Optionally, the cage frame includes a connecting pipe, one end of which is sealed and connected to the partition and is concentric with the through hole, and the other end of the connecting pipe is connected to a supporting member of an annular frame structure;

[0011] The filter bag is sleeved on the connecting pipe and the supporting member at the same time, and the opening of the filter bag is fixedly connected to the connecting pipe via a clamp.

[0012] Optionally, the inspection port includes a first opening and a second opening, the first opening is distributed along the length direction of the filter bag, the second opening is perpendicular to and connected to the first opening, and the second opening is located on the side of the filter bag away from one end of the partition.

[0013] Optionally, the sealing door includes a door body adapted to the inspection port, the door body being provided with an annular rubber pad adapted to the door body and capable of tightly pressing the outer wall of the dust removal box, one end of the door body being rotatably connected to the outer wall of the dust removal box, and the other end of the door body being detachably fixedly connected to the outer wall of the dust removal box.

[0014] Optionally, the exhaust box is provided with a worm wheel inside which is concentrically fixedly connected to the partition, the worm wheel is annular in structure, the upper part of the worm wheel is meshed with a worm screw adapted thereto, the worm screw is rotatably connected to the exhaust box, and one end of the worm screw extends out of the exhaust box and is fixed with a handle.

[0015] Optionally, a blow pipe located inside the exhaust box is provided on the side of each through hole, all the blow pipes are connected to a gas supply pipeline at the same time, and the gas supply pipeline is connected to an air bag, and a pulse valve is provided on the gas supply pipeline.

[0016] Optionally, the exhaust structure includes a fan, which is fixed on the outer wall of the exhaust box, the air inlet end of the fan is connected to the exhaust box, and the exhaust end of the fan is connected to an electric valve.

[0017] Compared with the prior art, the beneficial effects of this application are:

[0018] The powder silo top dust removal device provided in the present application is provided with a vertically distributed annular plate inside the box body, and a partition plate rotatably connected to the annular plate is provided in the middle position of the annular plate, the partition plate and the annular plate divide the interior of the box body into a dust removal box and an exhaust box, and a plurality of annular through holes are opened on the partition plate, each of which is connected to a cage frame horizontally distributed inside the dust removal box, and a detachable filter bag is sleeved on the cage frame, and an inspection port is provided on the dust removal box, and a sealing door capable of closing the inspection port is provided on the dust removal box, so that when the filter bag is replaced later, the staff only needs to stand on the top of the powder silo to replace the filter bag, and the staff no longer needs to climb to the top of the shell of the bag dust removal device to replace it, thereby improving the safety of the operation of replacing the filter bag, and each filter bag can be rotated to the position corresponding to the inspection port, and any filter bag can be replaced at the inspection port position, thereby having the effect of facilitating the replacement of the filter bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of the main structure of the dust removal device on the top of the powder bin provided in an embodiment of the present application;

[0021] Figure 2 A schematic diagram of the three-dimensional structure of the dust removal device on the top of the powder bin provided in an embodiment of the present application;

[0022] Figure 3 A schematic diagram of the front cross-sectional structure of a dust removal device on the top of a powder bin provided in an embodiment of the present application;

[0023] Figure 4 A schematic diagram of the three-dimensional structure of a cage frame of a dust removal device on the top of a powder bin provided in an embodiment of the present application;

[0024] Figure 5 A schematic diagram of the partial three-dimensional structure of the dust removal device on the top of the powder silo provided in an embodiment of the present application.

[0025] Description of reference numerals: box body 1, dust removal box 101, exhaust box 102,

[0026] Annular plate 2, partition 3, through hole 4, cage 5, connecting pipe 501, support 502, filter bag 6, inspection port 7, first opening 701, second opening 702, sealing door 8, door body 801, annular rubber pad 802, air inlet pipe 9, exhaust structure 10, fan 1001, electric valve 1002, worm gear 11, worm 12, handle 13, blowing pipe 14, air supply pipeline 15, air bag 16, pulse valve 17, powder bin 18. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present application.

[0028] like Figure 1-Figure 5 As shown:

[0029] A dust removal device for the top of a powder bin provided in an embodiment of the present application includes a box body 1, and a vertically distributed annular plate 2 is provided inside the box body 1. Specifically, the outer edge of the annular plate 2 is sealed and welded to the inner wall of the box body 1. A partition plate 3 rotatably connected to the annular plate 2 is provided in the middle of the annular plate 2. Specifically, the partition plate 3 is rotatably connected to the inner edge of the annular plate 2 through a sealed bearing.

[0030] The partition plate 3 and the annular plate 2 divide the interior of the box body 1 into a dust removal box 101 and an exhaust box 102 .

[0031] Further, the exhaust box 102 is located at the left end of the dust removal box 101 .

[0032] The partition plate 3 is provided with a plurality of through holes 4 distributed in an annular shape, and each through hole 4 is connected to a cage 5 horizontally distributed inside the dust removal box 101. Specifically, the left end of each cage 5 is sealed and fixedly connected to the right end of the partition plate 3, and each cage 5 is concentric with the corresponding through hole 4. A detachable filter bag 6 is sleeved on the cage 5. Specifically, the filter bag 6 is a hollow structure with one end open, and the opening of the filter bag 6 is detachably and fixedly connected to the cage 5.

[0033] An inspection opening 7 is provided on the dust removal box 101 , and a sealing door 8 capable of closing the inspection opening 7 is installed on the dust removal box 101 .

[0034] The lower end of the dust removal box 101 is connected to an air inlet pipe 9 connected to the top of the powder bin 18 , and the exhaust box 102 is connected to an exhaust structure 10 .

[0035] In this embodiment, in order to facilitate the lifting of the box body 1 to the top of the powder bin 18, a lifting ear (not shown in the figure) for connecting to a lifting device is provided on the top of the box body 1.

[0036] When in use, the air inlet pipe 9 is connected to and fixed on the top of the powder bin. When the pneumatic conveying device feeds the powder bin 18, the gas in the powder bin 18 enters the dust removal chamber, and after dust removal by the filter bag 6, the gas enters the exhaust box 102 and is discharged from the exhaust box 102, thereby achieving the effect of depressurizing the powder bin 18 and preventing dust from leaking out.

[0037] When the filter bag 6 needs to be replaced, the staff stands on the top of the powder bin 18, first opens the sealing door 8, and then rotates the filter bag 6 to be replaced to the position corresponding to the inspection port 7, then removes the filter bag 6 and replaces it with a new one. After the filter bag 6 is replaced, close the sealing door 8.

[0038] The powder silo top dust removal device provided in the present embodiment is provided with a vertically distributed annular plate 2 inside the box body 1, and a partition 3 rotatably connected thereto is provided in the middle position of the annular plate 2, and the partition 3 and the annular plate 2 divide the interior of the box body 1 into a dust removal box 101 and an exhaust box 102, and a plurality of annular through holes 4 are opened on the partition 3, and each through hole 4 is connected to a cage frame 5 horizontally distributed inside the dust removal box 101, and a detachable filter bag 6 is sleeved on the cage frame 5, and an inspection port 7 is provided on the dust removal box 101, and a sealing door 8 capable of closing the inspection port 7 is provided on the dust removal box 101, so that when the filter bag 6 is replaced later, since the filter bag 6 is horizontally distributed, the staff only needs to stand on the top of the powder silo to replace the filter bag 6, and the staff no longer needs to climb to the top of the shell of the bag dust removal device to replace it, thereby improving the safety of the operation of replacing the filter bag 6. Moreover, each filter bag 6 can be rotated to a position corresponding to the inspection opening 7 , and any filter bag 6 can be replaced at the inspection opening 7 , thereby achieving the effect of facilitating the replacement of the filter bag 6 .

[0039] In some embodiments of the present application, the cage 5 includes a connecting tube 501, one end of which is sealed and connected to the partition 3 and is concentric with the through hole 4. Specifically, the left end of the connecting tube 501 is sealed and welded to the right end of the partition 3. The other end of the connecting tube 501 is welded and fixed with a supporting member 502 of an annular frame structure.

[0040] The filter bag 6 is sleeved on the connecting pipe 501 and the support member 502 at the same time. Specifically, after the filter bag 6 is sleeved on the connecting pipe 501, the filter bag 6 contacts the outer wall of the connecting pipe 501. The opening of the filter bag 6 is fixedly connected to the connecting pipe 501 through a clamp (not shown in the figure), thereby realizing a detachable connection between the filter bag 6 and the cage frame 5, and the clamp connection method facilitates the disassembly and assembly of the filter bag 6.

[0041] In some embodiments of the present application, the inspection port 7 includes a first opening 701 and a second opening 702. The first opening 701 is distributed along the length direction of the filter bag 6, the second opening 702 is perpendicular to and connected to the first opening 701, and the second opening 702 is located on the side of the filter bag 6 away from the end of the partition 3.

[0042] In this embodiment, the first opening 701 is located at the front end of the dust removal box 101 , and the second opening 702 is located at the right end of the dust removal box 101 , that is, the second opening 702 is located on the right side of the closed end of the filter bag 6 .

[0043] When in use, after the inspection door is opened, loosen the clamp from the first opening 701, then directly pull the filter bag 6 out from the second opening 702 along its length direction, and then directly put a new filter bag 6 on the cage frame 5 from the second opening 702, and finally tighten the clamp to fix the new filter bag 6 on the cage frame 5, thereby making it easy to replace the filter bag 6.

[0044] In some embodiments of the present application, the sealing door 8 includes a door body 801 adapted to the inspection port 7, and an annular rubber pad 802 adapted to the door body 801 and capable of pressing against the outer wall of the dust removal box 101 is provided on the door body 801 to improve the sealing effect. One end of the door body 801 is rotatably connected to the outer wall of the dust removal box 101 through a hinge structure, and the other end of the door body 801 is detachably fixedly connected to the outer wall of the dust removal box 101 through bolts.

[0045] In this embodiment, the annular rubber pad 802 is detachably fixedly connected to the door body 801 by screws, so that the annular rubber pad 802 can be easily replaced later.

[0046] In some embodiments of the present application, a worm gear 11 is provided inside the exhaust box 102 and is concentrically fixedly connected to the partition 3. The worm gear 11 is an annular structure. A worm 12 adapted to the worm gear 11 is meshed with the upper portion of the worm gear 11. The worm 12 is rotatably connected to the wall of the exhaust box 102 through a bearing, and one end of the worm 12 extends out of the exhaust box 102 and is fixed with a handle 13.

[0047] When in use, the partition 3 can be rotated by simply turning the handle 13, thereby facilitating the rotation of the filter bag 6 to be replaced to a position corresponding to the inspection port 7. Moreover, the transmission mode of the worm gear 11 and the worm 12 has a self-locking effect, which enables the partition 3 to be locked after rotation, so that when the filter bag 6 is replaced, the cage 5 will not shake, and the filter bag 6 is easily replaced.

[0048] In order to facilitate the cleaning of dust attached to the surface of the filter bag 6. In some embodiments of the present application, a blow pipe 14 located inside the exhaust box 102 is provided on the side of each through hole 4, and all blow pipes 14 are connected to a gas pipeline 15 at the same time, and the gas pipeline 15 is connected to an air bag 16, and a pulse valve 17 is provided on the gas pipeline 15.

[0049] When in use, under the action of the pulse valve 17, each blowing pipe 14 blows high-pressure air to the corresponding filter bag 6, causing the filter bag 6 to expand rapidly and vibrate from the bag opening to the bottom, thereby shaking off the dust attached to the surface of the filter bag 6.

[0050] When the filter bag 6 is replaced and the partition 3 is rotated, the filter bag 6 and its corresponding blowing pipe 14 will be offset. Therefore, after the filter bag 6 is replaced, it is necessary to adjust the position of the filter bag 6 by rotating the partition 3 through the handle 13 so that the filter bag 6 and the blowing pipe 14 correspond to each other to ensure the cleaning effect of the filter bag 6.

[0051] In some embodiments of the present application, the exhaust structure 10 includes a fan 1001, which is fixed on the outer wall of the exhaust box 102. The air inlet end of the fan 1001 is connected to the exhaust box 102, and the exhaust end of the fan 1001 is connected to the electric valve 1002, so that after the feeding of the silo is completed, the exhaust end of the fan 1001 can be closed, thereby preventing external humid air from entering the silo.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A dust removal device at the top of a powder bin, comprising a housing (1), characterized in that: A vertically distributed annular plate (2) is provided inside the box body (1), and a partition plate (3) rotatably connected thereto is provided in the middle of the annular plate (2); The partition plate (3) and the annular plate (2) divide the interior of the box body (1) into a dust removal box (101) and an exhaust box (102); The partition plate (3) is provided with a plurality of through holes (4) distributed in an annular shape, each of the through holes (4) is connected to a cage frame (5) horizontally distributed inside the dust removal box (101), and a detachable filter bag (6) is sleeved on the cage frame (5); The dust removal box (101) is provided with an inspection port (7), and the dust removal box (101) is provided with a sealing door (8) capable of closing the inspection port (7); The lower end of the dust removal box (101) is connected to an air inlet pipe (9) connected to the top of the powder bin, and the exhaust box (102) is connected to an exhaust structure (10).

2. The dust removal device on the top of the powder silo according to claim 1, characterized in that: The cage frame (5) comprises a connecting pipe (501), one end of which is sealedly connected to the partition (3) and concentric with the through hole (4), and the other end of which is connected to a supporting member (502) of an annular frame structure; The filter bag (6) is sleeved on the connecting pipe (501) and the supporting member (502) at the same time, and the opening of the filter bag (6) is fixedly connected to the connecting pipe (501) via a clamp.

3. The dust removal device at the top of the powder silo according to claim 2, characterized in that: The inspection port (7) comprises a first opening (701) and a second opening (702), wherein the first opening (701) is distributed along the length direction of the filter bag (6), the second opening (702) is perpendicular to and connected to the first opening (701), and the second opening (702) is located on the side of the filter bag (6) away from one end of the partition (3).

4. The dust removal device on the top of the powder silo according to claim 3, characterized in that: The sealing door (8) comprises a door body (801) adapted to the inspection port (7); the door body (801) is provided with an annular rubber pad (802) adapted to the door body and capable of pressing tightly against the outer wall of the dust removal box (101); one end of the door body (801) is rotatably connected to the outer wall of the dust removal box (101); and the other end of the door body (801) is detachably fixedly connected to the outer wall of the dust removal box (101).

5. The dust removal device on the top of the powder silo according to claim 1, characterized in that: The exhaust box (102) is provided with a worm gear (11) inside which is coaxially fixedly connected to the partition (3). The worm gear (11) is an annular structure. The upper part of the worm gear (11) is meshed with a worm (12) adapted thereto. The worm (12) is rotationally connected to the exhaust box (102), and one end of the worm gear (12) extends out of the exhaust box (102) and is fixed with a handle (13).

6. The dust removal device on the top of the powder silo according to any one of claims 1 to 5, characterized in that: A blowing pipe (14) located inside the exhaust box (102) is provided on the side of each through hole (4), and all the blowing pipes (14) are simultaneously connected to an air supply pipeline (15), and the air supply pipeline (15) is connected to an air bag (16), and a pulse valve (17) is provided on the air supply pipeline (15).

7. The dust removal device on the top of the powder silo according to any one of claims 1 to 5, characterized in that: The exhaust structure (10) comprises a fan (1001), wherein the fan (1001) is fixed on the outer wall of the exhaust box (102), the air inlet end of the fan (1001) is connected to the exhaust box (102), and the exhaust end of the fan (1001) is connected to an electric valve (1002).

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