Dust removal mechanism of flour mill

Abstract

The utility model relates to the technical field of dust removal mechanisms, in particular to a dust removal mechanism of a flour mill, which comprises a dust collection structure arranged on the flour mill, an air guide pipe is arranged on the dust collection structure, and the air guide pipe is connected with a dust removal device; the dust collecting structure comprises a dust collecting hopper, the dust collecting hopper is arranged on the flour mill, a connecting pipe is arranged on the dust collecting hopper, and a branch pipe matched with the connecting pipe is fixedly arranged at the lower end of the air guide pipe; the connecting pipe is connected with the dust collecting hopper in an inserted mode, a limiting structure is arranged between the dust collecting hopper and the connecting pipe, the upper end of the connecting pipe is connected with the branch pipe in an inserted mode and fixed through a fixing structure, suction force is generated through the dust removal device, dust is sucked into the dust removal device from the dust collecting hopper, and the height of the dust collecting hopper is adjustable. Calibration can be carried out according to actual conditions, dust can be absorbed to the maximum extent, and the influence of the dust on the environment and body health is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal mechanisms, in particular to a dust removal mechanism for a grinding mill. Background Art

[0002] The grinding mill is composed of a main machine, an analyzer, a blower, a finished product cyclone separator, a piping device, a motor, etc. The main machine is composed of a frame, an air inlet volute, a scraper, a grinding roller, a grinding ring, a cover and a motor. The auxiliary equipment includes a jaw crusher, a bucket elevator, an electromagnetic vibrating feeder, an electric control cabinet, etc. After the material is crushed to the required particle size, the elevator sends the material to the storage hopper, and then the vibrating feeder evenly and continuously sends the material into the grinding chamber of the Raymond mill main machine. Due to the centrifugal force during rotation, the grinding roller swings outward and presses against the grinding ring. The scraper scoops up the material and sends it between the grinding roller and the grinding ring. The grinding purpose is achieved due to the rolling of the grinding roller. When processing wall panels, a grinding mill is usually used to grind the raw materials, and defective products can also be ground through the grinding mill and reused to avoid waste.

[0003] When the existing grinding mill is performing a grinding process, dust will inevitably fly, which not only affects the environment but also easily affects the health of workers. Some factories will install a dust removal mechanism to absorb dust. For example, Chinese patent publication No. CN215997030U discloses a “dust removal mechanism for a grinding mill for crucible production”. When the induced draft fan is working, negative pressure is generated in the outer frame and the dust collecting plate, causing the sealing plate in the dust collecting plate to rotate and move upward, so that dust contained in the main frame enters the dust collecting plate and the outer frame. When the induced draft fan stops working, the sealing plate will rotate due to gravity and cling to the baffle below the air inlet to seal the air inlet and prevent the dust in the outer frame from flowing back.

[0004] However, in actual use, some grinding mills need to process large volumes of raw materials, so the feed inlet is opened relatively large. When processing and feeding raw materials, dust flies, and a lot of dust will directly rise to a position where the dust removal mechanism cannot absorb it, which has an adverse effect on the environment and the health of workers. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art that when processing and feeding raw materials, a lot of dust will directly rise to a position where the dust removal mechanism cannot absorb it, which has an adverse effect on the environment and the health of workers. A dust removal mechanism for a grinding mill is proposed.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A grinding mill dust removal mechanism is designed, comprising a dust collecting structure provided on the grinding mill, wherein the dust collecting structure is provided with an air guide pipe connected to a dust removal device;

[0008] The dust collecting structure includes a dust collecting hopper, which is arranged on the grinding mill. The dust collecting hopper is provided with a connecting pipe, and the lower end of the air guide pipe is fixedly provided with a branch pipe that matches the connecting pipe;

[0009] The connecting pipe is plugged into the dust collecting hopper, and a limiting structure is provided between the dust collecting hopper and the connecting pipe. The upper end of the connecting pipe is plugged into the branch pipe and fixed by a fixing structure.

[0010] Furthermore, the limiting structure includes slots spaced apart on the connecting pipe, and the dust collecting hopper is a limiting member that matches the slots.

[0011] Furthermore, a through slot is provided on the dust collecting hopper, and the limiting member is arranged in the through slot and connected to the through slot.

[0012] Furthermore, the limiting member includes an elastic portion and an inserting tooth, one end of the elastic portion is fixedly connected to the inner wall of the through slot, and the inserting tooth is plugged into the slot.

[0013] Furthermore, a protrusion is fixedly provided on the elastic portion, and both the inserting teeth and the slot are provided with inclined surfaces.

[0014] Furthermore, the fixing structure includes a threaded column fixedly arranged on the connecting pipe, a sliding groove matching the threaded column is opened on the branch pipe, and a butterfly nut is threadedly connected to the threaded column.

[0015] The dust removal mechanism of a grinding mill proposed in this utility model has the following beneficial effects:

[0016] In the utility model, the dust collecting device generates suction to suck the dust from the dust collecting hopper into the dust collecting device, and the height of the dust collecting hopper is adjustable and can be calibrated according to actual conditions, so as to absorb the dust to the greatest extent and avoid the impact of dust on the environment and human health;

[0017] Secondly, in the present invention, the adjusted height is fixed by the fixing structure and the limiting mechanism, thereby preventing the dust collecting hopper from moving downward and deviating from the optimal dust removal position under the action of gravity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a dust removal mechanism for a grinding mill proposed in the present invention;

[0019] Figure 2 This is a structural diagram of the connecting pipe of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the slot of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the butterfly nut of the utility model.

[0022] In the figure: 1. grinding mill; 2. dust collecting structure; 21. dust collecting hopper; 22. connecting pipe; 3. air guide pipe; 31. branch pipe; 4. dust removal device; 5. limiting structure; 51. slot; 52. limiting member; 521. elastic part; 522. spline; 523. raised part; 6. fixing structure; 61. threaded column; 62. slide groove; 63. butterfly nut. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] Reference Figure 1-4 A grinding mill dust removal mechanism includes a dust collecting structure 2 provided on a grinding mill 1, an air guide 3 provided on the dust collecting structure 2, and the air guide 3 connected to a dust removal device 4;

[0025] The dust collecting structure 2 includes a dust collecting hopper 21, which is provided on the grinding mill 1. The dust collecting hopper 21 is provided with a connecting pipe 22. The lower end of the air guide pipe 3 is fixedly provided with a branch pipe 31 that matches the connecting pipe 22.

[0026] The connecting pipe 22 is plugged into the dust collecting hopper 21 , and a limiting structure 5 is provided between the dust collecting hopper 21 and the connecting pipe 22 . The upper end of the connecting pipe 22 is plugged into the branch pipe 31 and fixed by a fixing structure 6 .

[0027] Suction is generated by the dust removal device 4, and the dust is sucked into the dust removal device 4 along the dust collecting hopper 21, the connecting pipe 22, the branch pipe 31 and the air duct 3 for dust removal. The dust collecting hopper 21 and the connecting pipe 22 are connected by a limiting structure 5, so that the height of the dust collecting hopper 21 is adjustable and can be calibrated according to actual conditions. It can absorb dust to the greatest extent and avoid the impact of dust on the environment and human health. The dust removal device 4 is a dust removal device in the existing public technology in this field and will not be described in detail here.

[0028] Furthermore, in this embodiment, the limiting structure 5 includes slots 51 spaced apart on the connecting pipe 22, and a limiting member 52 that cooperates with the dust hopper 21 and the slots 51. By setting the limiting member 52 to engage with the slots 51, the dust hopper 21 is fixed to prevent loosening and downward movement.

[0029] Furthermore, in this embodiment, a through slot is provided on the dust hopper 21 , and a limiting member 52 is disposed in and connected to the through slot. When the limiting member 52 is moved and separated from the slot 51 , the height of the dust hopper 21 can be adjusted.

[0030] It should be noted that, in this embodiment, the limiting member 52 includes an elastic portion 521 and a tooth 522. One end of the elastic portion 521 is fixedly connected to the inner wall of the through groove, and the tooth 522 is plugged into the slot 51. The dust hopper 21 is fixed by plugging the tooth 522 into the slot 51. When the position of the dust hopper 21 needs to be adjusted, the elastic portion 521 is moved to elastically deform, so that the tooth 522 is separated from the slot 51, and the dust hopper 21 can be moved to adjust its height.

[0031] In addition, in this embodiment, a protrusion 523 is fixedly provided on the elastic part 521, and inclined surfaces are provided on the tooth 522 and the slot 51. The protrusion 523 is provided to facilitate the control of the limit member 52, and the tooth 522 is arranged opposite to the inclined surfaces of the slot 51. When the dust collecting hopper 21 moves upward, the two inclined surfaces abut, so that the tooth 522 is subjected to force to drive the elastic part 521 to undergo elastic deformation, which will not hinder the dust collecting hopper 21 from moving upward.

[0032] In more detail, in this embodiment, the fixing structure 6 includes a threaded column 61 fixedly set on the connecting tube 22, and a sliding groove 62 that cooperates with the threaded column 61 is opened on the branch tube 31. A butterfly nut 63 is threadedly connected to the threaded column 61. When the butterfly nut 63 is rotated, the position of the butterfly nut 63 will change. When it is necessary to move the connecting tube 22, the butterfly nut 63 is rotated to separate it from the outer wall of the branch tube 31 to adjust the position of the connecting tube 22. When it is necessary to fix the position of the connecting tube 22, the butterfly nut 63 is rotated to abut against the outer wall of the branch tube 31 to increase friction, so that the position of the connecting tube 22 can be fixed.

[0033] Working mode: When working, suction is generated by the dust removal device 4, and dust is sucked into the dust removal device 4 along the dust collecting hopper 21, the connecting pipe 22, the branch pipe 31 and the air guide pipe 3 for dust removal. By moving the elastic portion 521 to make it elastically shaped, the slot 522 is separated from the slot 51, and the dust collecting hopper 21 can be moved to adjust the height. By turning the butterfly nut 63 to separate it from the outer wall of the branch pipe 31, the position of the connecting pipe 22 can be adjusted.

[0034] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A grinding mill dust removal mechanism, comprising a dust collecting structure (2) provided on a grinding mill (1), characterized in that: An air duct (3) is provided on the dust collecting structure (2), and the air duct (3) is connected to a dust removal device (4); The dust collecting structure (2) comprises a dust collecting hopper (21), the dust collecting hopper (21) being arranged on the grinding mill (1), the dust collecting hopper (21) being provided with a connecting pipe (22), and a branch pipe (31) cooperating with the connecting pipe (22) being fixedly provided at the lower end of the air guide pipe (3); The connecting pipe (22) is plugged into the dust collecting hopper (21), and a limiting structure (5) is provided between the dust collecting hopper (21) and the connecting pipe (22). The upper end of the connecting pipe (22) is plugged into the branch pipe (31) and fixed by a fixing structure (6).

2. A dust removal mechanism for a grinding mill according to claim 1, characterized in that: The limiting structure (5) comprises slots (51) spaced apart on the connecting pipe (22), and a limiting member (52) of the dust collecting hopper (21) that matches the slots (51).

3. A dust removal mechanism for a grinding mill according to claim 2, characterized in that: A through slot is provided on the dust collecting hopper (21), and the limiting member (52) is arranged in the through slot and connected to the through slot.

4. A dust removal mechanism for a grinding mill according to claim 3, characterized in that: The limiting member (52) comprises an elastic portion (521) and an inserting tooth (522), one end of the elastic portion (521) is fixedly connected to the inner wall of the through slot, and the inserting tooth (522) is inserted into the slot (51).

5. A dust removal mechanism for a grinding mill according to claim 4, characterized in that: A protrusion (523) is fixedly provided on the elastic portion (521), and both the inserting teeth (522) and the slot (51) are provided with inclined surfaces.

6. A dust removal mechanism for a grinding mill according to claim 1, characterized in that: The fixing structure (6) includes a threaded column (61) fixedly arranged on the connecting pipe (22), a sliding groove (62) matching the threaded column (61) is provided on the branch pipe (31), and a butterfly nut (63) is threadedly connected to the threaded column (61).

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