Coal mill crusher capable of circularly feeding

Abstract

The utility model discloses a coal mill crusher capable of feeding circularly, which relates to the technical field of cement clinker crushing, and comprises a crushing mechanism and a bottom frame, the crushing mechanism is arranged at the top end of the inner side of the bottom frame, and the crushing mechanism comprises an outer housing, a ceramic lining plate, a mesh cylinder, a gear ring, a rotating shaft, a gear and a driving motor. The opening and closing mechanism, the sieve plate and the spiral feeding machine are arranged, and the opening and closing plate is rotationally connected with the outer housing through the pin shaft, so that the opening and closing plate deflects downwards by taking the pin shaft as the axis in the working and contracting process of the electric push rod, and crushed raw materials can be conveniently fed into the sorting box; according to the technical scheme, unqualified raw materials are screened out through the screening plate and fed into the spiral feeding machine through the transfer hopper, so that the unqualified raw materials can be conveniently and circularly fed through the spiral feeding machine, complete crushing is facilitated, automatic separation and circular feeding are achieved in the mode, manual intervention can be reduced, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cement clinker crushing technical field, concretely is a coal mill crusher that can cyclically feed. BACKGROUND

[0002] The coal mill crusher is a key equipment for cement clinker preparation, and is widely used in various mineral powder preparation, coal powder preparation, such as raw material mine, gypsum mine, coal and other material fine powder processing. During processing, the material is crushed by the action of grinding bodies, such as steel spherical, cylindrical or high-efficiency grinding bodies. The size ratio of the grinding bodies directly affects the grinding efficiency, and the grinding bodies have the advantages of small size, large crushing ratio, low noise, simple structure, easy maintenance and the like.

[0003] According to the announcement number CN115318393B, a finished cement clinker ball mill includes a cylinder, a stepped lining plate is fixedly installed inside the cylinder through screws, an outer protective cover is arranged on the outer surface of one end of the cylinder close to the feed inlet, the outer protective cover does not directly contact the cylinder, and the outer protective cover is located on the side of the slide shoe cover away from the feed inlet. The application sets an external magnetic field on the outside of the cylinder, which is separated from the center axis of the cylinder, so that the magnetic field directions on both sides of the center axis are opposite. Therefore, more grinding balls will rise and fall due to the friction and magnetic force during the upward process of the grinding balls with single magnetism. When the grinding balls reach the top, they will fall down due to the gravity and magnetic field change. At this time, the grinding balls will impact the material and grinding balls during the falling process due to the magnetic repulsion, thereby improving the grinding efficiency.

[0004] In view of the above-mentioned related scheme, the above-mentioned cylinder, lining plate and outer protective cover are matched to crush the raw materials for cement clinker preparation. However, the raw materials that do not meet the standard particle size cannot be effectively recycled during the crushing process, which increases the production cost and energy consumption, thereby making the use of the coal mill crusher more inconvenient. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims to provide a coal mill crusher that can cyclically feed raw materials to solve the technical problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a coal mill crusher that can cyclically feed raw materials, which includes a crushing mechanism and a chassis. The crushing mechanism is arranged at the top of the inner side of the chassis. The crushing mechanism includes an outer cover, a ceramic lining plate, a mesh cylinder, a gear ring, a rotating shaft, a gear and a driving motor. The inner side of the chassis is movably connected with the outer cover. The inner side of the outer cover is installed with the ceramic lining plate. The outer surface of the outer cover is provided with the gear ring.

[0007] The bottom of the outer casing is provided with an opening and closing mechanism, which includes an opening and closing plate, a pin, an electric push rod, and a vertical plate. The opening and closing plate is movably connected to the bottom of the outer casing. A sorting box is provided between the outer casing and the base frame. A sieve plate is movably connected inside the sorting box. Transfer hoppers are provided on both sides of the sorting box. A screw feeder located inside the base frame is provided on one side of the transfer hopper. Feeding hoppers communicating with the screw feeder are provided on both sides of the outer casing.

[0008] Preferably, the inner side of the ceramic liner is provided with grinding balls.

[0009] Preferably, both ends of the gear ring are meshed with gears, and a rotating shaft that is rotatably connected to the base frame via a bearing is provided through the inside of the gear.

[0010] Preferably, a drive motor connected to one of the rotating shafts via a coupling is installed on one side of the base frame, and a pulley set is fitted on the outer surface of the two rotating shafts.

[0011] Preferably, the opening and closing plate is rotatably connected to the outer shell by a pin, and the opening and closing plate is configured as an arc-shaped structure.

[0012] Preferably, the bottom end of the outer casing is provided with a vertical plate, and the vertical plate and the opening and closing plate are rotatably connected by an electric push rod through a hinge seat.

[0013] Preferably, the sieve plate is configured with an inverted "V" shape, and the transfer hopper is composed of a conical hopper and a cylindrical hopper.

[0014] Preferably, the screw feeder includes a cylinder, a propeller, and a driver, wherein the propeller is rotatably connected inside the cylinder via a bearing, and the driver is installed at the bottom end of the cylinder.

[0015] Preferably, the sorting box has a movable mechanism located below the sieve plate inside, which consists of a rotary motor, a cam plate, a support block, and a support spring.

[0016] Preferably, a rotary motor is installed at the front end of the sorting box, a cam plate is provided at the output end of the rotary motor, support blocks are symmetrically arranged on the inner side of the sorting box, and a support spring forming an elastic structure is connected between the support block and the sieve plate.

[0017] In summary, the present invention has the following main advantages:

[0018] 1. This utility model, by setting up an opening and closing mechanism, a screen plate, and a screw feeder, has a hinged structure. The opening and closing plate is rotatably connected to the outer casing via a pin, and the electric push rod is rotatably connected to the opening and closing plate and the vertical plate via a hinged seat. During the operation and retraction of the electric push rod, the opening and closing plate deflects downwards around the pin, facilitating the feeding of crushed raw materials into the sorting box. Unqualified raw materials are then screened out by the screen plate and fed into the screw feeder via a transfer hopper. This allows for the screw feeder to circulate and feed unqualified materials, facilitating complete crushing. This method achieves automatic separation and circulating feeding, reducing manual intervention and improving production efficiency.

[0019] 2. This utility model has an active mechanism. When the rotary motor is working, the output end of the rotary motor drives the cam plate to rotate. Since the screen plate and the support block are elastically connected by the support spring, the screen plate is reset and shakes up and down under the action of the support spring during the contact and separation process between the cam plate and the screen plate. This can prevent the raw material from accumulating on the screen plate and causing blockage, and at the same time, it can speed up the screening efficiency and improve the working efficiency of the coal mill crusher. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0022] Figure 3 This is a perspective view of the opening and closing mechanism of this utility model;

[0023] Figure 4 This is an exploded perspective view of the moving mechanism of this utility model.

[0024] In the diagram: 1. Crushing mechanism; 101. Outer casing; 102. Ceramic liner; 103. Mesh cylinder; 104. Gear ring; 105. Rotating shaft; 106. Gear; 107. Drive motor; 2. Base frame; 3. Feed hopper; 4. Opening and closing mechanism; 401. Opening and closing plate; 402. Pin; 403. Electric push rod; 404. Vertical plate; 5. Screen plate; 6. Screw feeder; 7. Movable mechanism; 701. Rotary motor; 702. Cam plate; 703. Support block; 704. Support spring; 8. Sorting box; 9. Transfer hopper. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0026] The embodiments of this utility model will be described below based on its overall structure.

[0027] A coal mill crusher with recirculating feed, such as Figures 1-3 As shown, the device includes a crushing mechanism 1 and a base frame 2. The crushing mechanism 1 is located at the top of the inner side of the base frame 2. The crushing mechanism 1 includes an outer cover 101, a ceramic liner 102, a mesh cylinder 103, a gear ring 104, a rotating shaft 105, a gear 106, and a drive motor 107. The outer cover 101 is movably connected to the inner side of the base frame 2. The ceramic liner 102 is installed on the inner side of the outer cover 101. The gear ring 104 is provided on the outer surface of the outer cover 101. The mesh cylinder 103 is located inside the ceramic liner 102. Grinding balls are provided on the inner side of the mesh cylinder 103. The gear 106 is meshed at both ends of the gear ring 104. The rotating shaft 105 is rotatably connected to the base frame 2 through a bearing through the gear 106. The drive motor 107 is installed on one side of the base frame 2 and connected to one of the rotating shafts 105 through a coupling. A pulley set is sleeved on the outer surface of the two rotating shafts 105.

[0028] See Figures 1-4 It can be seen that the raw material to be crushed is fed into the ceramic liner 102 through the feeding hopper 3. At the same time, the output end of the drive motor 107 drives the rotating shaft 105 and the gear 106 to rotate under the action of the pulley group, so that the gear ring 104, the outer cover 101, and the ceramic liner 102 connected to the gear 106 rotate together, thereby cooperating with the grinding balls to realize the crushing operation of the raw material to be crushed. The ceramic liner 102 has the unique properties of being lightweight, high-strength, highly wear-resistant, and pollution-free.

[0029] See Figures 2-3 It can be seen that a sorting box 8 is provided between the outer casing 101 and the base frame 2. A sieve plate 5 is movably connected inside the sorting box 8. The sieve plate 5 is configured with an inverted "V" shape. An opening and closing mechanism 4 is provided at the bottom end of the outer casing 101. The opening and closing mechanism 4 includes an opening and closing plate 401, a pin 402, an electric push rod 403, and a vertical plate 404. The opening and closing plate 401 is movably connected to the bottom end of the outer casing 101. A pin 402 rotatably connects the opening and closing plate 401 and the outer casing 101. The opening and closing plate 401 is configured with an arc-shaped structure. The bottom end of the outer cover 101 is provided with a vertical plate 404. The vertical plate 404 and the opening and closing plate 401 are rotatably connected by an electric push rod 403 through a hinge seat. Both sides of the sorting box 8 are provided with transfer hoppers 9. The transfer hoppers 9 are composed of conical hoppers and cylindrical hoppers. One side of the transfer hoppers 9 is provided with a screw feeder 6 located inside the base frame 2. Both sides of the outer cover 101 are provided with feeding hoppers 3 that are connected to the screw feeder 6.

[0030] See Figures 2-3As can be seen, since the opening and closing plate 401 and the outer shell 101 are rotatably connected by the pin 402, and the electric push rod 403 is rotatably connected to the opening and closing plate 401 and the upright plate 404 through the hinge seat, the opening and closing plate 401 deflects downward about the pin 402 as the axis during the operation and retraction of the electric push rod 403. This facilitates the feeding of the crushed raw material into the sorting box 8, so that the unqualified raw material can be screened out by the screen plate 5 and fed into the screw feeder 6 through the transfer hopper 9. This facilitates the recycling of unqualified material by the screw feeder 6, thus facilitating complete crushing. This method achieves automatic separation and recycling, which reduces manual intervention and improves production efficiency.

[0031] See Figures 1-2 It is known that the screw feeder 6 includes a cylinder, a propeller and a driver. The propeller is rotatably connected to the inside of the cylinder through a bearing, and the driver is installed at the bottom of the cylinder. When the driver is working, the output end of the driver drives the propeller to rotate, so that unqualified raw materials can be pushed upward by the propeller.

[0032] See Figure 1 , Figure 2 and Figure 4 It can be seen that the sorting box 8 has an active mechanism 7 located below the sieve plate 5 inside. The active mechanism 7 consists of a rotary motor 701, a cam plate 702, a support block 703, and a support spring 704. The rotary motor 701 is installed at the front end of the sorting box 8. The cam plate 702 is provided at the output end of the rotary motor 701. The support blocks 703 are symmetrically arranged on the inner side of the sorting box 8. The support blocks 703 and the sieve plate 5 are connected by a support spring 704 that forms an elastic structure.

[0033] See Figure 4 It can be seen that when the rotary motor 701 is working, the output end of the rotary motor 701 drives the cam plate 702 to rotate. Since the screen plate 5 and the support block 703 are elastically connected by the support spring 704, during the process of the cam plate 702 contacting and separating from the screen plate 5, the screen plate 5 is reset and shakes up and down under the action of the support spring 704. This can prevent the raw material from accumulating on the screen plate 5 and causing blockage, and at the same time can speed up the screening efficiency and improve the working efficiency of the coal mill crusher.

[0034] The working principle of this utility model is as follows: When using the recirculating coal mill crusher, the raw material to be crushed is fed into the ceramic liner 102 through the feeding hopper 3. At the same time, the output end of the drive motor 107 drives the rotating shaft 105 and gear 106 to rotate under the action of the pulley group, so that the gear ring 104, the outer cover 101, and the ceramic liner 102 connected to the gear 106 rotate together, thereby cooperating with the grinding balls to achieve the crushing operation of the raw material to be crushed. After a single crushing is completed, the electric push rod 403 is activated and retracted, so that the opening and closing plate 401 deflects downward about the pin shaft 402 as the axis, thereby facilitating the feeding of the crushed raw material into the sorting box 8, so that the unqualified raw material is screened out through the screen plate 5 and fed into the screw feeder 6 through the transfer hopper 9, so that the unqualified material can be circulated through the screw feeder 6, thereby facilitating complete crushing. The contents not described in detail in this description belong to the prior art known to those skilled in the art.

[0035] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A recirculating feeder coal mill breaker comprising a breaker mechanism (1) and a chassis (2), characterised in that: The crushing mechanism (1) is arranged at the top end of the inner side of the chassis (2), the crushing mechanism (1) comprises an outer shell (101), a ceramic lining plate (102), a mesh cylinder (103), a gear ring (104), a rotating shaft (105), a gear (106) and a driving motor (107), the inner side of the chassis (2) is movably connected with the outer shell (101), the inner side of the outer shell (101) is provided with the ceramic lining plate (102), and the outer surface of the outer shell (101) is provided with the gear ring (104); The bottom end of the outer shell (101) is provided with an opening and closing mechanism (4), the opening and closing mechanism (4) comprises an opening and closing plate (401), a pin shaft (402), an electric push rod (403) and a vertical plate (404), the opening and closing plate (401) is movably connected at the bottom end of the outer shell (101), the outer shell (101) and the chassis (2) are provided with a sorting box (8), the inside of the sorting box (8) is movably connected with a sieve plate (5), both sides of the sorting box (8) are provided with a transfer hopper (9), one side of the transfer hopper (9) is provided with a spiral feeder (6) located in the inner side of the chassis (2), and both sides of the outer shell (101) are provided with a feeding hopper (3) in communication with the spiral feeder (6).

2. A recirculating feed coal mill crusher as claimed in claim 1 wherein: The inner side of the ceramic lining plate (102) is provided with a mesh cylinder (103), and the inner side of the mesh cylinder (103) is provided with grinding balls.

3. A recirculating feed coal mill crusher as claimed in claim 1 wherein: Both ends of the gear ring (104) are movably connected with the gear (106), and the inner side of the gear (106) is movably connected with the rotating shaft (105) rotatably connected with the chassis (2) through a bearing.

4. A recirculating feed coal mill crusher as claimed in claim 3 wherein: One side of the chassis (2) is provided with a driving motor (107) connected with one of the rotating shafts (105) through a shaft coupling, and the outer surfaces of the two rotating shafts (105) are sleeved with belt pulley groups.

5. A recirculating feed coal mill crusher as claimed in claim 1, wherein: The pin shaft (402) is rotatably connected between the opening and closing plate (401) and the outer shell (101), and the opening and closing plate (401) is arranged in an arc structure.

6. A recirculating feed coal mill crusher as claimed in claim 5 wherein: The bottom end of the outer shell (101) is provided with a vertical plate (404), and the electric push rod (403) is rotatably connected between the vertical plate (404) and the opening and closing plate (401) through a hinge seat.

7. A recirculating feed coal mill crusher as claimed in claim 1 wherein: The sieve plate (5) is arranged in an inverted "V" shape, and the transfer hopper (9) is composed of a conical hopper and a cylindrical hopper.

8. A recirculating feed coal mill crusher as claimed in claim 1 wherein: The spiral feeder (6) comprises a cylinder, a propeller and a driver, the propeller is rotatably connected in the inner side of the cylinder through a bearing, and the driver is installed at the bottom end of the cylinder.

9. A recirculating feed coal mill crusher as claimed in claim 1, wherein: The inside of the sorting box (8) is provided with a movable mechanism (7) below the sieve plate (5), and the movable mechanism (7) is composed of a rotary motor (701), a cam plate (702), a support block (703) and a support spring (704).

10. A recirculating feed coal mill crusher as claimed in claim 9 wherein: The front end of the sorting box (8) is provided with a rotary motor (701), the output end of the rotary motor (701) is provided with a cam plate (702), the inner side of the sorting box (8) is symmetrically provided with a support block (703), and the support block (703) and the sieve plate (5) are connected with a support spring (704) having an elastic structure.

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