Dust recovery device for silica gel material production

Abstract

The invention provides a dust recovery device for silica gel material production, and relates to the technical field of silica gel material production. An inlet in the top of the switching valve communicates with the dust collection channel through a dust collection fan, and two outlets in the bottom of the switching valve are fixedly connected with butt joints through bolts correspondingly. The bottom of the butt joint is connected with an outer ring, and a non-woven fabric sleeve is mounted at the bottom of the outer ring; and the inner part of the outer ring is connected with a dust inlet cover plate. Large-particle impurities contained in silica gel dust are intercepted through the filter screen, the content of the impurities in the silica gel dust is reduced, the quality of the silica gel dust is guaranteed, then the silica gel dust enters the non-woven fabric sleeve, and the silica gel dust is intercepted and collected through the non-woven fabric sleeve. The problems that the silica gel dust quality is affected due to the fact that carried large-particle impurities and silica gel dust are intercepted together due to the fact that a single-layer intercepting and filtering mode is mostly adopted in a dust recycling device for silica gel production, screening and large-particle impurity removal need to be conducted in the later period, and the process is tedious are solved.

Description

Technical Field

[0001] The invention relates to the technical field of silica gel material production, and in particular to a dust recovery device for silica gel material production. Background Art

[0002] As a highly active adsorption material, silica gel is an amorphous substance, the main component of which is silicon dioxide. It has stable chemical properties and is non-flammable. During the production process of silica gel, a large amount of dust will be generated, which will not only pollute the working environment and affect the health of production personnel, but also lead to waste of resources and increase in production costs. Therefore, it is necessary to recycle silica gel dust for secondary use.

[0003] At present, there are some dust recovery devices for silica gel production on the market, but these devices still have many shortcomings in actual use. Most of them adopt single-layer interception and filtration methods, and the large particles of impurities carried will be intercepted together with the silica gel dust, affecting the quality of the silica gel dust. Later screening is required to remove the large particles of impurities. The process is cumbersome and the operation is complicated, which increases the labor intensity of the operator. Summary of the invention

[0004] The present invention relates to a dust recovery device for silica gel material production, which solves the problem that the existing dust recovery devices for silica gel production mostly adopt a single-layer interception and filtration method, and the large particles of impurities carried by them will be intercepted together with the silica gel dust, which affects the quality of the silica gel dust. Later screening is required to remove the large particles of impurities. The process is cumbersome and the operation is complicated, which increases the labor intensity of the operator.

[0005] In a first aspect of the present disclosure, a dust recovery device for silicone material production is provided, which specifically includes: a switching valve, a docking joint, an outer ring, a non-woven fabric cover, a dust inlet cover plate, a filter screen, a movable ring and a limit ring; the top inlet of the switching valve is connected to the dust suction channel through a dust suction fan, and the two outlets at the bottom of the switching valve are respectively fixedly connected to the docking joint by bolts; the bottom of the docking joint is connected to the outer ring, and the bottom of the outer ring is installed with a non-woven fabric cover; the inside of the outer ring is connected to the dust inlet cover plate, and the bottom of the dust inlet cover plate is installed with a filter screen, and the filter screen is located in the non-woven fabric cover Internally, the filter is connected to the docking joint through a through-hole provided in the middle of the dust inlet cover plate; a movable ring is connected to the top of the dust inlet cover plate, and the outer periphery of the movable ring is connected to the outer ring; a limiting ring is sleeved on the outside of the docking joint, and the bottom of the limiting ring is connected to the outer ring; the silica gel dust sucked by the dust suction fan enters the filter through the switching valve, and the filter intercepts the large particles of impurities contained in the silica gel dust, thereby reducing the impurity content in the silica gel dust and ensuring the quality of the silica gel dust; then the silica gel dust enters the non-woven fabric cover, and the silica gel dust is intercepted and collected by the non-woven fabric cover.

[0006] Furthermore, an L-shaped slot A is arranged in a circumferential shape inside the outer ring, and a card block B is arranged in a circumferential shape outside the dust inlet cover plate, the card block B is connected to the L-shaped slot A, and the dust inlet cover plate is connected to the inner part of the outer ring by a rotating card connection, so that the outer ring and the dust inlet cover plate can be separated more conveniently, so as to obtain the collected silica gel dust and large particles of impurities respectively.

[0007] Furthermore, the movable ring is rotatably connected to the dust inlet cover plate, a stopper and an arc-shaped guide rod are arranged on the top of the dust inlet cover plate, both ends of the arc-shaped guide rod are connected to the stopper, a force-bearing block is arranged inside the movable ring, the force-bearing block contacts the stopper, a sliding hole is arranged inside the force-bearing block, and the arc-shaped guide rod slides through the sliding hole.

[0008] Furthermore, a positioning block is arranged in a surrounding shape on the outside of the movable ring, and the positioning block is connected to the notch of the L-shaped slot A, and slides with the sliding hole through the arc-shaped guide rod, so as to guide the rotation of the movable ring.

[0009] Furthermore, a spring A is sleeved on the outside of the arc-shaped guide rod, one end of the spring A contacts the stop block, and the other end of the spring A contacts the force-bearing block, so that the dust inlet cover plate has an elastic reset effect through the spring A. When the block B is located at the notch of the L-shaped slot A, the movable circle is rotated, and the spring A is forced to shrink, so that the bottom side of the positioning block contacts the top side of the block B, pressing the dust inlet cover plate downward, and the dust inlet cover plate drives the movable circle to move downward, so that the positioning block moves to the notch of the L-shaped slot A, and the dust inlet cover plate rotates under the influence of the thrust of the spring A, so that the block B moves to the innermost end of the L-shaped slot A, thereby fixing the dust inlet cover plate.

[0010] Furthermore, an L-shaped slot B is arranged in a circumferential shape inside the outer ring, and a clamping block A is arranged in a circumferential shape outside the docking joint. The clamping block A is connected to the L-shaped slot B, and the outer ring is connected to the bottom of the docking joint by a rotating clamping method, so that the outer ring and the docking joint are easier to separate.

[0011] Furthermore, the limit ring is slidably connected to the docking joint, a guide block is arranged in a surrounding shape on the outside of the docking joint, a movable hole is arranged in a surrounding shape on the inside of the limit ring, the guide block is slidably connected to the movable hole, and the spring B has an elastic reset effect on the limit ring. When the block A moves to the innermost end of the L-shaped slot B, the limit block corresponds to the notch position of the L-shaped slot B, and the limit ring moves downward under the thrust of the spring B, so that the limit block is inserted into the L-shaped slot B, preventing the outer ring from rotating, thereby fixing the outer ring.

[0012] Furthermore, a limiting block is arranged in a surrounding shape at the bottom of the limiting ring, and the limiting block is inserted into the notch of the L-shaped slot B.

[0013] Furthermore, a spring B is sleeved on the outside of the docking joint, the top of the spring B contacts the docking joint, and the bottom of the spring B contacts the top of the limiting ring.

[0014] Furthermore, the switching valve is composed of a valve body and a valve plate. The valve plate is slidably connected to the valve body. A switching hole is provided inside the valve body. An adjusting handle is provided at the bottom of the valve plate. The adjusting handle is slidably connected to the switching hole. By moving the valve plate, the two outlets at the bottom of the valve body are switched. The silica gel dust sucked by the dust suction fan alternately enters the two docking joints through the switching valve, so as to alternately obtain the collected silica gel dust and large particles of impurities, which is more convenient for manual operation.

[0015] The present invention provides a dust recovery device for silica gel material production, which has the following beneficial effects:

[0016] When the present invention is in use, the silica gel dust sucked by the dust suction fan enters the filter screen through the switching valve, the filter screen intercepts the large particles of impurities contained in the silica gel dust, reduces the impurity content in the silica gel dust, and ensures the quality of the silica gel dust. Then the silica gel dust enters the non-woven fabric cover, and the non-woven fabric cover intercepts and collects the silica gel dust so that the silica gel dust can be reused.

[0017] In addition, the dust inlet cover is connected to the inner part of the outer ring by rotating and clamping, which makes it easier to separate the outer ring and the dust inlet cover so as to obtain the collected silica gel dust and large particles of impurities respectively; the arc-shaped guide rod and the sliding hole slide together to guide the rotation of the movable ring, and the spring A plays an elastic reset effect on the dust inlet cover; when the clamping block B is located at the notch of the L-shaped clamping slot A, the movable ring is rotated, and the spring A is forced to shrink, so that the bottom side of the positioning block contacts the top side of the clamping block B, and the dust inlet cover is pressed downward, and the dust inlet cover drives the movable ring to move downward, so that the positioning block moves When it reaches the notch of the L-shaped slot A, the dust inlet cover plate rotates under the influence of the thrust of the spring A, so that the clamping block B moves to the innermost end of the L-shaped slot A, thereby fixing the dust inlet cover plate and ensuring the stability of the state of the dust inlet cover plate inside the outer ring; when the dust inlet cover plate needs to be disassembled from the inside of the outer ring, the dust inlet cover plate is rotated in the opposite direction, the spring A is contracted under the force, the top side of the clamping block B contacts the bottom side of the positioning block, and the dust inlet cover plate is pulled upward, the dust inlet cover plate drives the movable ring to move upward, the clamping block B and the positioning block are separated from the L-shaped slot A, and the dust inlet cover plate can be disassembled from the inside of the outer ring, which is easy to operate.

[0018] In addition, the outer ring is connected to the bottom of the docking joint by a rotating clamping method, which makes it easier to disassemble the outer ring and the docking joint; the guide block and the movable hole slide together to guide the movement of the limit ring, and the spring B plays an elastic reset effect on the limit ring; when the clamping block A moves to the innermost end of the L-shaped slot B, the limit block corresponds to the notch position of the L-shaped slot B, and the limit ring moves downward under the thrust of the spring B, so that the limit block is inserted into the L-shaped slot B to prevent the outer ring from rotating, which has a fixing effect on the outer ring and ensures the firmness of the connection between the outer ring and the docking joint; when the outer ring needs to be disassembled from the bottom of the docking joint, the limit ring is moved upward, the limit block is separated from the L-shaped slot B, the outer ring is contacted and locked, and the outer ring can be rotated to move the clamping block A from the innermost end of the L-shaped slot B to the notch, and the outer ring is disassembled from the bottom of the docking joint, which is easy to operate.

[0019] In addition, by moving the valve plate, the two outlets at the bottom of the valve body are switched, and the silica gel dust sucked by the dust suction fan enters the two docking joints alternately through the switching valve, so as to alternately obtain the collected silica gel dust and large particles of impurities, which is more convenient for manual operation.

[0020] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0022] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0023] In the attached picture:

[0024] Figure 1 The overall axial side structure schematic diagram of the present application is shown;

[0025] Figure 2 A schematic diagram of the cross-sectional structure of the switching valve of the present application is shown;

[0026] Figure 3 A schematic diagram of the split structure of the butt joint and the outer ring of the present application is shown;

[0027] Figure 4 A schematic diagram of the connection structure of the outer ring, dust inlet cover plate and movable ring of the present application is shown;

[0028] Figure 5 A schematic diagram of the connection structure between the outer ring and the non-woven fabric sleeve of the present application is shown;

[0029] Figure 6 A schematic diagram of the connection structure of the dust inlet cover plate, the filter screen, the movable ring and the spring A of the present application is shown;

[0030] Figure 7 A schematic diagram of the split structure of the dust inlet cover plate and the movable ring of the present application is shown;

[0031] Figure 8 A schematic diagram of the split structure of the butt joint and the limiting ring of the present application is shown.

[0032] Reference numerals list

[0033] 1. Switching valve; 11. Valve body; 111. Switching hole; 12. Valve plate; 121. Adjusting handle; 2. Butt joint; 21. Block A; 22. Guide block; 3. Outer ring; 31. L-shaped slot A; 32. L-shaped slot B; 4. Non-woven cover; 5. Dust inlet cover; 51. Block B; 52. Stop block; 53. Arc guide rod; 6. Filter; 7. Movable ring; 71. Force block; 711. Sliding hole; 72. Positioning block; 8. Spring A; 9. Limiting ring; 91. Movable hole; 92. Limiting block; 10. Spring B. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figures 1 to 8 :

[0036] The present invention proposes a dust recovery device for silica gel material production, comprising: a switching valve 1, a docking joint 2, an outer ring 3, a non-woven fabric sleeve 4, a dust inlet cover plate 5, a filter screen 6, a movable ring 7 and a limit ring 9; the top inlet of the switching valve 1 is connected to the dust suction channel through a dust suction fan, and the two outlets at the bottom of the switching valve 1 are respectively fixedly connected to the docking joint 2 by bolts; the bottom of the docking joint 2 is connected to the outer ring 3, and the bottom of the outer ring 3 is installed with a non-woven fabric sleeve 4; the inside of the outer ring 3 is connected to the dust inlet cover plate 5, and the bottom of the dust inlet cover plate 5 is installed with a filter screen 6, the filter screen 6 is located inside the non-woven fabric sleeve 4, and the filter screen 6 is connected to the inlet The opening in the middle of the dust cover plate 5 is connected to the docking head 2; a movable ring 7 is connected to the top of the dust inlet cover plate 5, and the outer periphery of the movable ring 7 is connected to the outer ring 3; a limit ring 9 is sleeved on the outside of the docking head 2, and the bottom of the limit ring 9 is connected to the outer ring 3; the silica gel dust sucked by the dust suction fan enters the filter screen 6 through the switching valve 1, and the filter screen 6 intercepts the large particles of impurities contained in the silica gel dust, reduces the impurity content in the silica gel dust, and ensures the quality of the silica gel dust, and then the silica gel dust enters the non-woven fabric cover 4, and the silica gel dust is intercepted and collected by the non-woven fabric cover 4 so that the silica gel dust can be reused.

[0037] In the embodiment of the present disclosure, an L-shaped slot A31 is disposed in a circumferential shape inside the outer ring 3, and a block B51 is disposed in a circumferential shape outside the dust inlet cover plate 5, and the block B51 is connected to the L-shaped slot A31;

[0038] By adopting the above technical solution, the dust inlet cover plate 5 is connected to the inner part of the outer ring 3 by rotating and snapping, so that the outer ring 3 and the dust inlet cover plate 5 can be separated more conveniently, so as to obtain the collected silica gel dust and large particles of impurities respectively.

[0039] In the disclosed embodiment, the movable ring 7 is rotatably connected with the dust inlet cover plate 5, a stopper 52 and an arc-shaped guide rod 53 are arranged on the top of the dust inlet cover plate 5, and both ends of the arc-shaped guide rod 53 are connected with the stopper 52, a force block 71 is arranged inside the movable ring 7, the force block 71 contacts with the stopper 52, a sliding hole 711 is arranged inside the force block 71, and the arc-shaped guide rod 53 slides through the sliding hole 711, and a positioning block 72 is arranged in a surrounding shape on the outside of the movable ring 7, and the positioning block 72 is connected to the notch of the L-shaped slot A31, and a spring A8 is sleeved on the outside of the arc-shaped guide rod 53, one end of the spring A8 contacts with the stopper 52, and the other end of the spring A8 contacts with the force block 71;

[0040] By adopting the above technical solution, the arc-shaped guide rod 53 and the sliding hole 711 are slidably matched to guide the rotation of the movable ring 7, and the spring A8 is used to elastically reset the dust inlet cover plate 5;

[0041] When the block B51 is located at the notch of the L-shaped slot A31, the movable ring 7 is rotated, and the spring A8 is forced to contract, so that the bottom side of the positioning block 72 contacts the top side of the block B51, and the dust inlet cover plate 5 is pressed downward. The dust inlet cover plate 5 drives the movable ring 7 to move downward, so that the positioning block 72 moves to the notch of the L-shaped slot A31. The dust inlet cover plate 5 rotates under the influence of the thrust of the spring A8, so that the block B51 moves to the innermost end of the L-shaped slot A31, which plays a role in fixing the dust inlet cover plate 5 and ensuring the stability of the state of the dust inlet cover plate 5 inside the outer ring 3.

[0042] When it is necessary to separate the dust inlet cover plate 5 from the inner part of the outer ring 3, the dust inlet cover plate 5 is rotated in the opposite direction, the spring A8 is forced to shrink, the top side of the clamping block B51 contacts the bottom side of the positioning block 72, and the dust inlet cover plate 5 is pulled upward. The dust inlet cover plate 5 drives the movable ring 7 to move upward, and the clamping block B51 and the positioning block 72 are separated from the L-shaped clamping groove A31, so that the dust inlet cover plate 5 can be separated from the inner part of the outer ring 3, and the operation is simple.

[0043] In the embodiment of the present disclosure, an L-shaped slot B32 is disposed in a circumferential shape inside the outer ring 3, and a clamping block A21 is disposed in a circumferential shape outside the docking head 2, and the clamping block A21 is connected to the L-shaped slot B32;

[0044] By adopting the above technical solution, the outer ring 3 is connected to the bottom of the docking head 2 by means of a rotating snap connection, so that the outer ring 3 and the docking head 2 can be separated more easily.

[0045] Embodiment 2, on the basis of embodiment 1, the limiting ring 9 is slidably connected with the docking head 2, the outside of the docking head 2 is provided with a guide block 22 in a surrounding shape, the inside of the limiting ring 9 is provided with a movable hole 91 in a surrounding shape, the guide block 22 is slidably connected in the movable hole 91, the bottom of the limiting ring 9 is provided with a limiting block 92 in a surrounding shape, the limiting block 92 is inserted into the notch of the L-shaped slot B32, the outside of the docking head 2 is sleeved with a spring B10, the top of the spring B10 is in contact with the docking head 2, and the bottom of the spring B10 is in contact with the top of the limiting ring 9;

[0046] By adopting the above technical solution, the guide block 22 and the movable hole 91 are slidably matched to guide the movement of the limit ring 9, and the spring B10 is used to elastically reset the limit ring 9;

[0047] When the block A21 moves to the innermost end of the L-shaped slot B32, the limit block 92 corresponds to the notch position of the L-shaped slot B32, and the limit ring 9 moves downward under the thrust of the spring B10, so that the limit block 92 is inserted into the L-shaped slot B32 to prevent the outer ring 3 from rotating, thereby fixing the outer ring 3 and ensuring the firmness of the connection between the outer ring 3 and the docking head 2;

[0048] When the outer ring 3 needs to be disassembled from the bottom of the butt joint 2, the limit ring 9 is moved upwards, the limit block 92 is separated from the L-shaped slot B32, and the outer ring 3 is locked. The outer ring 3 can be rotated to move the block A21 from the innermost end of the L-shaped slot B32 to the notch, and the outer ring 3 is disassembled from the bottom of the butt joint 2 for easy operation.

[0049] Embodiment 3, on the basis of Embodiment 1 and Embodiment 2, the switching valve 1 is composed of a valve body 11 and a valve plate 12, the valve plate 12 is slidably connected in the valve body 11, a switching hole 111 is provided inside the valve body 11, and an adjusting handle 121 is provided at the bottom of the valve plate 12, and the adjusting handle 121 is slidably connected in the switching hole 111;

[0050] By adopting the above technical solution, the two outlets at the bottom of the valve body 11 are switched by moving the valve plate 12, and the silica gel dust sucked by the dust suction fan alternately enters the two docking joints 2 through the switching valve 1, so as to alternately obtain the collected silica gel dust and large particles of impurities, which is more convenient for manual operation.

[0051] The working principle of this embodiment is as follows: the silica gel dust sucked by the dust suction fan enters the filter screen 6 through the switching valve 1, and the filter screen 6 intercepts the large particles of impurities contained in the silica gel dust, reduces the impurity content in the silica gel dust, and ensures the quality of the silica gel dust. Then the silica gel dust enters the non-woven fabric cover 4, and the silica gel dust is intercepted and collected by the non-woven fabric cover 4 so as to be reused; the dust inlet cover plate 5 is connected to the inside of the outer ring 3 by a rotating card connection. When the card block B51 is located at the notch of the L-shaped card slot A31, the movable circle 7 is rotated, and the spring A8 is forced to close. The spring A8 contracts, causing the bottom side of the positioning block 72 to contact the top side of the card block B51, pressing the dust inlet cover plate 5 downward, and the dust inlet cover plate 5 drives the movable ring 7 to move downward, causing the positioning block 72 to move to the notch of the L-shaped card slot A31. The dust inlet cover plate 5 rotates under the thrust of the spring A8, causing the card block B51 to move to the innermost end of the L-shaped card slot A31, thereby fixing the dust inlet cover plate 5. When it is necessary to separate the dust inlet cover plate 5 from the inside of the outer ring 3, the dust inlet cover plate 5 is rotated in the opposite direction, the spring A8 is forced to contract, the top side of the card block B51 contacts the bottom side of the positioning block 72, and the dust inlet cover plate 5 is pulled upward. The dust inlet cover plate 5 drives the movable ring 7 to move upward, and the block B51 and the positioning block 72 are separated from the L-shaped slot A31, so that the dust inlet cover plate 5 can be disassembled from the inner part of the outer ring 3; the outer ring 3 is connected to the bottom of the docking head 2 by a rotating clamping method. When the block A21 moves to the innermost end of the L-shaped slot B32, the limit block 92 corresponds to the notch position of the L-shaped slot B32, and the limit ring 9 moves downward under the thrust of the spring B10, so that the limit block 92 is inserted into the L-shaped slot B32 to prevent the outer ring 3 from rotating, thereby fixing the outer ring 3. The outer ring 3 is locked and rotated to make the block A21 move from the innermost end of the L-shaped slot B32 to the notch, and the outer ring 3 is removed from the bottom of the butt joint 2; by moving the valve plate 12, the two outlets at the bottom of the valve body 11 are switched, and the silica gel dust sucked by the dust suction fan enters the two butt joints 2 alternately through the switching valve 1, so as to alternately obtain the collected silica gel dust and large particles of impurities.

[0052] In this article, there are a few points to note:

[0053] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0054] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0055] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A dust recovery device for silica gel material production, comprising: A switching valve (1), a docking joint (2), an outer ring (3), a non-woven fabric sleeve (4), a dust inlet cover plate (5), a filter screen (6), a movable ring (7) and a limit ring (9); characterized in that the top inlet of the switching valve (1) is connected to the dust suction channel through a dust suction fan, and the two outlets at the bottom of the switching valve (1) are respectively fixedly connected to the docking joint (2) by bolts; the bottom of the docking joint (2) is connected to the outer ring (3), and the bottom of the outer ring (3) is installed with a non-woven fabric sleeve (4); The outer ring (3) is internally connected to a dust inlet cover plate (5), a filter screen (6) is installed at the bottom of the dust inlet cover plate (5), the filter screen (6) is located inside the non-woven fabric sleeve (4), and the filter screen (6) is connected to the docking head (2) through a through hole provided in the middle of the dust inlet cover plate (5); the top of the dust inlet cover plate (5) is connected to a movable ring (7), and the outer periphery of the movable ring (7) is connected to the outer ring (3); the outer part of the docking head (2) is sleeved with a limit ring (9), and the bottom of the limit ring (9) is connected to the outer ring (3).

2. A dust recovery device for silica gel material production according to claim 1, characterized in that: The outer ring (3) is provided with an L-shaped slot A (31) in a circumferential shape inside, and the dust inlet cover plate (5) is provided with a block B (51) in a circumferential shape outside, and the block B (51) is connected to the L-shaped slot A (31).

3. A dust recovery device for silica gel material production according to claim 1, characterized in that: The movable ring (7) is rotatably connected to the dust inlet cover plate (5); a stopper (52) and an arc-shaped guide rod (53) are arranged on the top of the dust inlet cover plate (5); both ends of the arc-shaped guide rod (53) are connected to the stopper (52); a force block (71) is arranged inside the movable ring (7); the force block (71) is in contact with the stopper (52); a sliding hole (711) is arranged inside the force block (71); and the arc-shaped guide rod (53) slides through the sliding hole (711).

4. A dust recovery device for silica gel material production according to claim 2, characterized in that: A positioning block (72) is arranged in a surrounding shape on the outside of the movable ring (7), and the positioning block (72) is connected to the notch of the L-shaped slot A (31).

5. A dust recovery device for silica gel material production according to claim 3, characterized in that: A spring A (8) is sleeved on the outside of the arc-shaped guide rod (53), one end of the spring A (8) contacts the stopper (52), and the other end of the spring A (8) contacts the force bearing block (71).

6. A dust recovery device for silica gel material production according to claim 1, characterized in that: The outer ring (3) is provided with an L-shaped slot B (32) in a circumferential shape inside, and the butt joint (2) is provided with a clamping block A (21) in a circumferential shape outside, and the clamping block A (21) is connected to the L-shaped slot B (32).

7. A dust recovery device for silica gel material production according to claim 1, characterized in that: The limiting ring (9) is slidably connected to the docking joint (2); a guide block (22) is arranged in a surrounding shape on the outside of the docking joint (2); a movable hole (91) is arranged in a surrounding shape on the inside of the limiting ring (9); and the guide block (22) is slidably connected in the movable hole (91).

8. A dust recovery device for silica gel material production according to claim 6, characterized in that: A limiting block (92) is arranged in a surrounding shape at the bottom of the limiting ring (9), and the limiting block (92) is inserted into the notch of the L-shaped card slot B (32).

9. A dust recovery device for silica gel material production according to claim 1, characterized in that: A spring B (10) is sleeved on the outside of the docking head (2), the top of the spring B (10) contacts the docking head (2), and the bottom of the spring B (10) contacts the top of the limiting ring (9).

10. A dust recovery device for silica gel material production according to claim 1, characterized in that: The switching valve (1) is composed of a valve body (11) and a valve plate (12); the valve plate (12) is slidably connected to the valve body (11); a switching hole (111) is provided inside the valve body (11); an adjusting handle (121) is provided at the bottom of the valve plate (12); and the adjusting handle (121) is slidably connected to the switching hole (111).

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