Anti-blocking feeding device of calcium carbonate grinding mill

Abstract

The utility model relates to calcium carbonate processing equipment technical field, specifically is a kind of anti -blocking material feeding device of calcium carbonate grinding machine, including conveying cylinder, fixedly connected with feed hopper on conveying cylinder, two long shafts are rotatably connected on feed hopper, fixedly connected with rotating plate on long shaft, fixedly connected with connecting rod on long shaft, first drive assembly is installed in the side of feed hopper, the output end fixedly connected with moving rod of first drive assembly, two guide shafts are rotatably connected on moving rod, one end of conveying cylinder is detachably installed with mounting seat through multiple bolts, feeding auger is rotatably connected on mounting seat, and dredging structure is equipped on feed hopper;By setting two position-adjustable rotating plates inside feed hopper, the maximum amount of material entering the inside of feeding auger can be limited by adjusting the opening size between two rotating plates, so that the material blocking can be avoided from source, and the feeding stability and production efficiency are improved.

Description

Technical Field

[0001] This utility model relates to a feeding device, specifically an anti-clogging feeding device for a calcium carbonate grinding mill, belonging to the technical field of calcium carbonate processing equipment. Background Technology

[0002] In the calcium carbonate powder production process, the grinding mill is the core equipment for refining raw materials. Its feeding process usually adopts a screw feeding device to complete continuous feeding. The specific steps are as follows: the conveyor belt transports the block or granular calcium carbonate raw materials to the feed hopper, and the bottom of the feed hopper is connected to the feeding screw. The material is pushed into the grinding chamber of the grinding mill by the rotation of the screw blades. This feeding method is widely used in calcium carbonate processing production lines due to its simple structure and continuous feeding.

[0003] However, existing screw feeders have significant potential for material blockage: the feed rate of the conveyor belt is easily affected by the raw material conveying rhythm and the stacking state. When the material that floods into the feed hopper at one time exceeds the rated conveying capacity of the screw feeder, the excess material will accumulate and compact at the junction of the feed hopper and the screw feeder, causing the screw feeder to jam. After the blockage, not only does the machine need to be stopped and the screw feeder disassembled for cleaning, but each treatment takes a long time, which seriously affects the continuity of production. Even worse, the resistance generated by the blockage can cause the drive motor of the screw feeder to overload, leading to equipment failures such as motor burnout and gearbox damage, increasing maintenance costs and the risk of production delays. Utility Model Content

[0004] The purpose of this invention is to provide an anti-clogging feeding device for a calcium carbonate grinding mill in order to solve the above-mentioned problems. By setting two adjustable rotating plates inside the feeding hopper, the maximum amount of material entering the feeding screw can be limited by adjusting the size of the opening between the two rotating plates. Therefore, material blockage can be avoided from the source, and feeding stability and production efficiency can be improved.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: an anti-clogging feeding device for a calcium carbonate grinding mill, comprising a conveying cylinder, a feeding hopper fixedly connected to the conveying cylinder, an adjusting structure provided on the feeding hopper, the adjusting structure including a long shaft and a rotating plate, two long shafts rotatably connected to the feeding hopper, a rotating plate fixedly connected to the long shafts, a connecting rod fixedly connected to the long shafts, a first driving assembly installed on one side of the feeding hopper, a moving rod fixedly connected to the output end of the first driving assembly, two guide shafts rotatably connected to the moving rod, the guide shafts being rolledly connected to adjacent connecting rods, a conveying structure provided on the conveying cylinder, the conveying structure including a mounting base and a third driving assembly, a mounting base detachably installed at one end of the conveying cylinder by multiple bolts, a feeding screw rotatably connected to the mounting base, and a clearing structure provided on the feeding hopper.

[0006] Preferably, the two connecting rods are symmetrically distributed about the middle of the moving rod, and the two rotating plates are symmetrically distributed about the middle of the feed hopper.

[0007] Preferably, a third drive assembly is installed on one side of the mounting base, the output end of the third drive assembly is fixedly connected to one end of the feeding screw, the other end of the feeding screw is fixedly connected to a connecting block, a connecting sleeve is rotatably connected to the feeding cylinder, the connecting block and the connecting sleeve are engaged, and a discharge cylinder is fixedly connected to the feeding cylinder.

[0008] Preferably, the connecting block has an overall quadrangular prism structure, and the cross-section of one end of the connecting block has a trapezoidal structure.

[0009] Preferably, two guide plates are fixedly connected to the feed hopper, and the two guide plates are symmetrically distributed about the middle of the feed hopper.

[0010] Preferably, a baffle is fixedly connected to the feed hopper, and the baffle has a V-shaped cross-section.

[0011] Preferably, the unblocking structure includes a crank rod and a pull rod. The crank rod is rotatably connected to the feed hopper, and two pull rods are rotatably connected to the crank rod. The pull rods are rotatably connected to a connecting shaft, and the connecting shaft is fixedly connected to a sliding rod. The sliding rods are slidably connected to a guide seat, and the guide seat is fixedly connected to the feed hopper. A crossbar is fixedly connected to the bottom end of the two sliding rods.

[0012] Preferably, a second drive assembly is installed on the feed hopper. The output end of the second drive assembly is fixedly connected to the crank.

[0013] The beneficial effects of this utility model are as follows: During feeding, the material enters the feeding screw at the bottom of the feeding hopper through the gap between the two rotating plates. Since the size of the gap between the two rotating plates is fixed, the maximum amount of material entering the feeding screw can be limited, thus preventing material blockage at the source and improving feeding stability and production efficiency. When it is necessary to adjust the size of the gap between the two rotating plates, the first drive component can be activated. The output end of the first drive component extends and drives the moving rod to move. The movement of the moving rod drives the two guide shafts to move. While the guide shafts are moving, they roll on the connecting rod. While the guide shafts are rolling on the connecting rod, they drive the connecting rod to rotate. The rotation of the connecting rod drives the rotating plates to move. When the two rotating plates rotate in opposite directions at the same time, the gap between them will change. Therefore, the gap between the two rotating plates can be adjusted according to the actual situation, thereby effectively improving the flexibility of use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 for Figure 1 The diagram shown is an enlarged view of the structure of part A.

[0016] Figure 3 This is a schematic diagram of the connection structure between the connecting block and the connecting sleeve of this utility model;

[0017] Figure 4 for Figure 3 The diagram shown is an enlarged view of the structure of section B.

[0018] Figure 5 This is a schematic diagram of the connection structure between the long shaft and the rotating plate of this utility model.

[0019] In the diagram: 1. Feeding cylinder; 2. Feed hopper; 3. Adjusting structure; 301. Long shaft; 302. Rotating plate; 303. Connecting rod; 304. Guide shaft; 305. Moving rod; 306. First drive assembly; 4. Guide plate; 5. Baffle; 6. Unblocking structure; 601. Curved rod; 602. Pull rod; 603. Connecting shaft; 604. Slide rod; 605. Guide seat; 606. Crossbar; 607. Second drive assembly; 7. Conveying structure; 701. Mounting seat; 702. Third drive assembly; 703. Feeding screw; 704. Connecting block; 705. Connecting sleeve; 8. Discharge cylinder. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-5As shown, an anti-clogging feeding device for a calcium carbonate grinding mill includes a conveying cylinder 1, a feeding hopper 2 fixedly connected to the conveying cylinder 1, an adjusting structure 3 on the feeding hopper 2, the adjusting structure 3 including a long shaft 301 and a rotating plate 302, two long shafts 301 rotatably connected to the feeding hopper 2, a rotating plate 302 fixedly connected to the long shafts 301, a connecting rod 303 fixedly connected to the long shafts 301, a first driving assembly 306 installed on one side of the feeding hopper 2, a moving rod 305 fixedly connected to the output end of the first driving assembly 306, two guide shafts 304 rotatably connected to the moving rod 305, the guide shafts 304 and the adjacent connecting rods 303 being rolled together, a conveying structure 7 on the conveying cylinder 1, the conveying structure 7 including a mounting base 701 and a third driving assembly 702, a mounting base 701 detachably installed at one end of the conveying cylinder 1 by multiple bolts, a feeding screw 703 rotatably connected to the mounting base 701, and a clearing structure 6 on the feeding hopper 2.

[0022] As a technical optimization of this utility model, the two connecting rods 303 are symmetrically distributed about the middle of the moving rod 305, and the two rotating plates 302 are symmetrically distributed about the middle of the feed hopper 2. Therefore, it can be ensured that the opening between the two rotating plates 302 is always at the top of the feeding screw 703, so that the material can fall into the feeding screw 703 for conveying.

[0023] As a technical optimization of this utility model, a third drive assembly 702 is installed on one side of the mounting base 701. The output end of the third drive assembly 702 is fixedly connected to one end of the feeding screw 703. The third drive assembly 702 can drive the feeding screw 703 to rotate. A connecting block 704 is fixedly connected to the other end of the feeding screw 703. A connecting sleeve 705 is rotatably connected to the conveying cylinder 1. The connecting block 704 and the connecting sleeve 705 are engaged, thus preventing the end of the feeding screw 703 from being suspended and effectively improving the stability of the feeding screw 703 after installation. A discharge cylinder 8 is fixedly connected to the conveying cylinder 1. The discharge cylinder 8 can guide the material, making it easier for the material to fall into the inside of the grinding mill for grinding.

[0024] As a technical optimization of this utility model, the connecting block 704 has a quadrangular prism structure. Therefore, when the connecting block 704 rotates, the connecting sleeve 705 can rotate together. The cross-section of one end of the connecting block 704 has a trapezoidal structure, which can play a role in guiding the movement when the connecting block 704 and the connecting sleeve 705 are engaged.

[0025] As a technical optimization of this utility model, two guide plates 4 are fixedly connected to the feed hopper 2. The two guide plates 4 are symmetrically distributed about the middle of the feed hopper 2, so they can guide the material. A baffle 5 is fixedly connected to the feed hopper 2. The overall cross-section of the baffle 5 is V-shaped, so it can guide the material and facilitate the material to fall from the opening between the two rotating plates 302 into the feeding screw 703 for conveying.

[0026] As a technical optimization of this utility model, the unblocking structure 6 includes a crank rod 601 and a pull rod 602. The crank rod 601 is rotatably connected to the feed hopper 2, and two pull rods 602 are rotatably connected to the crank rod 601. The pull rods 602 are rotatably connected to the connecting shaft 603, the connecting shaft 603 is fixedly connected to the slide rod 604, the slide rod 604 is slidably connected to the guide seat 605, the guide seat 605 is fixedly connected to the feed hopper 2, and the bottom ends of the two slide rods 604 are fixedly connected to the crossbar 606. Therefore, it can realize the automatic unblocking of blocked materials, avoid the need for manual unblocking, and thus reduce the intensity of manual maintenance.

[0027] As a technical optimization of this utility model, a second drive assembly 607 is installed on the feed hopper 2. The output end of the second drive assembly 607 is fixedly connected to the crank 601, so it can drive the crank 601 to rotate in one direction.

[0028] In use, during feeding, material enters the feeding screw 703 at the bottom of the feeding hopper 2 through the gap between the two rotating plates 302. Since the size of the gap between the two rotating plates 302 is fixed, the maximum amount of material entering the feeding screw 703 can be limited, thus preventing material blockage at the source and improving feeding stability and production efficiency. When it is necessary to adjust the size of the gap between the two rotating plates 302, the first drive assembly 306 (preferably a cylinder) can be activated. The output end of the first drive assembly 306 extends, driving the moving rod 305 to move. The movement of the 5th motor drives the two guide shafts 304 to move. Simultaneously, the guide shafts 304 roll on the connecting rod 303, causing the connecting rod 303 to rotate. This rotation of the connecting rod 303 drives the rotating plate 302 to move. When the two rotating plates 302 rotate in opposite directions simultaneously, the gap between them changes. Therefore, the gap between the two rotating plates 302 can be adjusted according to actual conditions, effectively improving the flexibility of use. After the material enters the feeding screw 703, it is driven by the third drive assembly 702 (preferably electric). The output end of the machine rotates, driving the feeding screw 703 to rotate. The rotation of the feeding screw 703 achieves stable material conveying. When the material is conveyed to the discharge cylinder 8, it falls into the inside of the grinding mill under the action of gravity for grinding. When too much material clogs between the two rotating plates 302, the second drive component 607 can be activated. The output end of the second drive component 607 rotates, driving the crank 601 to rotate. The unidirectional rotation of the crank 601 drives the slide bar 604 to reciprocate on the guide seat 605 through the pull rod 602. The simultaneous reciprocating motion of the two slide bars 604 drives the cross bar 606 to reciprocate. The horizontal bar 606 moves up and down synchronously, which disperses the accumulated material and realizes automatic handling of minor blockages without the need for manual cleaning, thereby reducing the intensity of manual maintenance. By removing the multiple spiral nuts of the fixed mounting base 701, the mounting base 701 can be moved to pull the feeding screw 703 out of the inside of the conveying cylinder 1, which facilitates the cleaning and maintenance of the feeding screw 703. When installing the feeding screw 703, the connecting block 704 at its end will engage with the connecting sleeve 705, thus supporting the end of the feeding screw 703 and improving the stability of the feeding screw 703 after installation.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A feeder device for preventing clogging in a calcium carbonate grinding mill, comprising a feed cylinder (1), characterized in that: A feeding hopper (2) is fixedly connected to the feeding cylinder (1). An adjustment structure (3) is provided on the feeding hopper (2). The adjustment structure (3) includes a long shaft (301) and a rotating plate (302). Two long shafts (301) are rotatably connected to the feeding hopper (2). A rotating plate (302) is fixedly connected to the long shafts (301). A connecting rod (303) is fixedly connected to the long shafts (301). A first drive assembly (306) is installed on one side of the feeding hopper (2). A moving rod is fixedly connected to the output end of the first drive assembly (306). (305), two guide shafts (304) are rotatably connected to the moving rod (305), the guide shafts (304) are rollingly connected to the adjacent connecting rods (303), the conveying cylinder (1) is provided with a conveying structure (7), the conveying structure (7) includes a mounting base (701) and a third drive assembly (702), one end of the conveying cylinder (1) is detachably mounted with a mounting base (701) by multiple bolts, the mounting base (701) is rotatably connected with a feeding screw (703), and the feeding hopper (2) is provided with a clearing structure (6).

2. The anti-clogging feeding device for a calcium carbonate grinding mill according to claim 1, characterized in that: The two connecting rods (303) are symmetrically distributed about the middle of the moving rod (305), and the two rotating plates (302) are symmetrically distributed about the middle of the feed hopper (2).

3. The anti-clogging feeding device for a calcium carbonate grinding mill according to claim 1, characterized in that: A third drive assembly (702) is installed on one side of the mounting base (701). The output end of the third drive assembly (702) is fixedly connected to one end of the feeding screw (703). A connecting block (704) is fixedly connected to the other end of the feeding screw (703). A connecting sleeve (705) is rotatably connected to the conveying cylinder (1). The connecting block (704) and the connecting sleeve (705) are engaged. A discharge cylinder (8) is fixedly connected to the conveying cylinder (1).

4. The anti-clogging feeding device for a calcium carbonate grinding mill according to claim 3, characterized in that: The connecting block (704) has an overall quadrangular prism structure, and the cross-section of one end of the connecting block (704) has a trapezoidal structure.

5. The anti-clogging feeding device for a calcium carbonate grinding mill according to claim 1, characterized in that: Two guide plates (4) are fixedly connected to the feed hopper (2), and the two guide plates (4) are symmetrically distributed about the middle of the feed hopper (2).

6. The anti-clogging feeding device for a calcium carbonate grinding mill according to claim 1, characterized in that: A baffle (5) is fixedly connected to the feed hopper (2), and the overall cross-section of the baffle (5) is V-shaped.

7. The anti-clogging feeding device for a calcium carbonate grinding mill according to claim 1, characterized in that: The unblocking structure (6) includes a crank rod (601) and a pull rod (602). The crank rod (601) is rotatably connected to the feed hopper (2). Two pull rods (602) are rotatably connected to the crank rod (601). The pull rods (602) are rotatably connected to the connecting shaft (603). The connecting shaft (603) is fixedly connected to the slide rod (604). The slide rod (604) is slidably connected to the guide seat (605). The guide seat (605) is fixedly connected to the feed hopper (2). A crossbar (606) is fixedly connected to the bottom end of the two slide rods (604).

8. The anti-clogging feeding device for a calcium carbonate grinding mill according to claim 7, characterized in that: The feed hopper (2) is equipped with a second drive assembly (607). The output end of the second drive assembly (607) is fixedly connected to the crank (601).

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