Feeding device for cement grinding

Abstract

The utility model relates to the technical field of cement production, and particularly discloses a cement grinding and feeding device, a motor is started to drive a first gear to rotate, the first gear is meshed with a second gear to drive a screw rod to rotate, and the motor can vibrate to a certain extent during use, so that the screw rod can rotate. Small raw materials in the feeding hopper continuously penetrate through the two filter plates to fall into the conveying pipe, when only large raw materials which cannot penetrate through the filter plates are left in the feeding hopper, an electric push cylinder is started to push a sliding plate upwards, and the two filter plates are forced to rotate around the bottom end of the sliding plate when the sliding plate slides upwards; meanwhile, the other ends of the filter plates slide in the feeding hopper, when an electric push cylinder pushes a sliding plate to a limiting position, the two filter plates are changed into outward fit from inward fit, large raw materials on the two filter plates are ejected out, the large raw materials are intercepted outside through the filter plates, and therefore the situation that production is affected due to the fact that the size of the raw materials is too large is avoided; and the effect of improving the production efficiency is achieved.

Description

Technical Field

[0001] This utility model relates to the field of cement production technology, and in particular to a cement grinding and feeding device. Background Technology

[0002] Cement mills are key equipment for further pulverizing materials after they have been crushed. Ball mills are widely used in the production of cement, silicate products, new building materials, refractory materials, fertilizers, ferrous and non-ferrous metal ore beneficiation, and glass ceramics, for dry or wet grinding of various ores and other grindable materials.

[0003] A cement mill spiral material stabilizing device (publication number: CN213966938U) mainly consists of a pushing mechanism, a cleaning mechanism, and a crushing mechanism. By setting up a geared motor, a rotating shaft, and spiral blades, the feeding process of the cement mill is made very convenient. Compared with the prior art, the pushing mechanism in this device can continuously supply material to the liner and avoid human waste of dry cement, thereby greatly increasing the factory's production capacity. By setting up a high-pressure water pump, an L-shaped pipe, a cylindrical cavity, and small water spray holes, this device can clean the inside of the pushing cylinder after the dry cement is crushed, thereby preventing the dry cement from getting damp and solidifying inside the pushing cylinder, causing blockage.

[0004] However, during the implementation of the above technical solution, at least the following technical problems were found: the feeding device cannot screen large pieces of raw materials, the grinding device cannot grind large raw materials, and large raw materials are prone to getting stuck in the conveying pipe, which will affect production efficiency. Utility Model Content

[0005] (1) Technical problems solved

[0006] To address the shortcomings of existing technologies, this utility model provides a cement grinding feeding device, which solves the technical problems mentioned above, such as the inability of the feeding device to screen large pieces of raw materials, the inability of the grinding device to grind large raw materials, and the tendency of large raw materials to get stuck in the conveying pipe, which affects production efficiency.

[0007] (2) Technical solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A cement grinding and feeding device includes a conveying pipe, a feeding hopper fixedly installed at the top of the conveying pipe, two sliding plates slidably installed inside the feeding hopper, two filter plates rotatably installed between the two sliding plates, and an electric pusher cylinder fixedly installed at the side end of the feeding hopper; both filter plates are slidably connected to the feeding hopper, the top of the electric pusher cylinder is connected to one of the sliding plates, a motor is fixedly installed at the end of the conveying pipe, a first gear is fixedly installed at the side end of the motor, a screw rod is rotatably installed inside the conveying pipe, and a second gear is fixedly installed at the end of the screw rod; the second gear meshes with the first gear.

[0010] Preferably, a base is fixedly installed at the bottom end of the conveying pipe.

[0011] Preferably, two recycling plates are fixedly installed at the top of the base.

[0012] (3) Beneficial effects

[0013] 1. The raw material is poured into the hopper. The motor starts and drives the first gear to rotate. The first gear meshes with the second gear, which in turn drives the screw to rotate. The motor will vibrate during operation. This vibration causes small pieces of raw material inside the hopper to continuously pass through the two filter plates and fall into the conveying pipe. After the screw rotates, the raw material is conveyed into the grinding device. When only large pieces of raw material that cannot pass through the filter plates remain in the hopper, the electric pusher cylinder starts and pushes the sliding plate upward. As the sliding plate slides upward, it forces the two filter plates to rotate around the bottom of the sliding plate. At the same time, the other end of the filter plate slides inside the hopper. When the electric pusher cylinder pushes the sliding plate to its limit position, the two filter plates change from cutting inward to cutting outward, pushing the large pieces of raw material out of the filter plates. The pushed-out raw material falls into the two recovery plates. Containers can be placed at the bottom of the two recovery plates to receive large pieces of raw material. By intercepting large pieces of raw material through the filter plates, production is prevented from being affected by the excessive volume of raw material, thus improving production efficiency.

[0014] Second, after large pieces of raw material are pushed out by the filter plate, the electric pusher cylinder pulls the sliding plate to reset. The sliding plate will block the channel opened on the feeding hopper for movement, preventing material leakage during feeding. After the large pieces of raw material are pushed out, the filter plate can be prevented from becoming clogged and affecting the filtration effect. After the recovery plate collects the large pieces of raw material, the large pieces of raw material can be sent back to the crushing device for crushing. The large pieces of raw material are pushed out by the filter plate, thus achieving the effect of preventing the filter plate from being clogged and affecting the filtration. Attached Figure Description

[0015] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0016] Figure 1 This is a structural diagram of the base of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the conveying pipe of this utility model;

[0018] Figure 3 For this utility model Figure 2 Enlarged structural diagram at point A;

[0019] Figure 4 This is a cross-sectional structural diagram of the feeding hopper of this utility model.

[0020] Legend: 1. Conveying pipe; 2. Feeding hopper; 3. Sliding plate; 4. Filter plate; 5. Electric pusher cylinder; 6. Motor; 7. First gear; 8. Second gear; 9. Screw rod; 11. Base; 12. Recycling plate. Detailed Implementation

[0021] This application provides a cement grinding feeding device that effectively solves the technical problems mentioned above, such as the inability of the feeding device to screen large pieces of raw material, the inability of the grinding device to grind large-volume raw materials, and the tendency of large-volume raw materials to get stuck in the conveying pipe, which affects production efficiency. The raw material is poured into the feeding hopper, and the motor starts to drive the first gear to rotate. The first gear, through meshing with the second gear, drives the screw rod to rotate. The motor generates vibration during operation, causing small pieces of raw material inside the feeding hopper to continuously pass through the two filter plates and fall into the conveying pipe. After being conveyed into the grinding device by the rotation of the screw rod, when only large pieces of raw material that cannot pass through the filter plates remain in the feeding hopper, the electric pusher cylinder starts to push the sliding plate upwards. As the sliding plate slides upwards, it forces the two filter plates to rotate around the bottom of the sliding plate. Simultaneously, the other end of the filter plate... The feeding hopper slides internally. When the electric pusher cylinder pushes the sliding plate to its limit position, the two filter plates change from inward cutting to outward cutting, pushing out large pieces of raw material from the filter plates. The pushed-out raw material falls into the two recovery plates, and containers can be placed at the bottom of the two recovery plates to receive large pieces of raw material. By intercepting large pieces of raw material through the filter plates, production is prevented from being affected by excessively large raw material volume, thus improving production efficiency. After the large pieces of raw material are pushed out by the filter plates, the electric pusher cylinder pulls the sliding plate back to its original position. The sliding plate blocks the movement channel opened on the feeding hopper, preventing material leakage during feeding. Pushing out large pieces of raw material prevents the filter plates from becoming clogged and affecting the filtration effect. After the recovery plates collect the large pieces of raw material, they can be sent back to the crushing device for crushing. The large pieces of raw material are pushed out by the filter plates, thus preventing the filter plates from becoming clogged and affecting the filtration effect.

[0022] Example

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application embodiment effectively solves the technical problems mentioned above, such as the feeding device being unable to screen large pieces of raw materials, the grinding device being unable to grind large raw materials, and large raw materials being prone to getting stuck in the conveying pipe, which affects production efficiency. The overall idea is as follows:

[0024] To address the problems existing in the prior art, this utility model provides a cement grinding feeding device, including a conveying pipe 1, a feeding hopper 2 fixedly installed at the top of the conveying pipe 1, two sliding plates 3 slidably installed inside the feeding hopper 2, and two filter plates 4 rotatably installed between the two sliding plates 3.

[0025] An electric push cylinder 5 is fixedly installed on the side end of the feeding hopper 2. Both filter plates 4 are slidably connected to the feeding hopper 2. The top of the electric push cylinder 5 is connected to a sliding plate 3. A motor 6 is fixedly installed at the end of the conveying pipe 1. A first gear 7 is fixedly installed on the side end of the motor 6.

[0026] A screw rod 9 is rotatably installed inside the conveying pipe 1, and a second gear 8 is fixedly installed at the end of the screw rod 9; the second gear 8 meshes with the first gear 7, and a base 11 is fixedly installed at the bottom end of the conveying pipe 1, and two recycling plates 12 are fixedly installed at the top end of the base 11.

[0027] Working principle:

[0028] The first step involves pouring the raw material into the feeding hopper 2. The motor 6 starts, driving the first gear 7 to rotate. The first gear 7, through meshing with the second gear 8, drives the screw rod 9 to rotate. The motor 6 generates vibration during operation, causing small pieces of raw material inside the feeding hopper 2 to continuously pass through the two filter plates 4 and fall into the conveying pipe 1. The rotation of the screw rod 9 then transports the raw material into the grinding device. When only large pieces of raw material that cannot pass through the filter plates 4 remain inside the feeding hopper 2, the electric pusher cylinder 5 starts, pushing the sliding plate 3 upwards. The sliding plate 3 slides upwards... When in motion, the two filter plates 4 are forced to rotate around the bottom of the sliding plate 3. At the same time, the other end of the filter plate 4 slides inside the feeding hopper 2. When the electric pusher cylinder 5 pushes the sliding plate 3 to its limit position, the two filter plates 4 change from cutting inward to cutting outward, pushing out large pieces of raw material on the two filter plates 4. The pushed-out raw material will fall into the two recovery plates 12. Containers can be placed at the bottom of the two recovery plates 12 to receive large pieces of raw material. By intercepting large pieces of raw material outside through the filter plates 4, production is avoided due to the excessive volume of raw material, thus achieving the effect of improving production efficiency.

[0029] In the second step, after the large pieces of raw material are pushed out by the filter plate 4, the electric pusher cylinder 5 pulls the sliding plate 3 to reset. The sliding plate 3 will block the channel opened on the feeding hopper 2 for movement, so as to avoid material leakage during feeding. After the large pieces of raw material are pushed out, the filter plate 4 can be prevented from being blocked and affecting the filtration effect. After the recovery plate 12 collects the large pieces of raw material, the large pieces of raw material can be sent back to the crushing device for crushing. The large pieces of raw material are pushed out by the filter plate 4, thus achieving the effect of preventing the filter plate 4 from being blocked and affecting the filtration.

[0030] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all possible embodiments. However, any obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A cement grinding and feeding device, comprising a conveying pipe (1), characterized in that, The top end of the conveying pipe (1) is fixedly installed with a feeding hopper (2), and two sliding plates (3) are slidably installed inside the feeding hopper (2). Two filter plates (4) are rotatably installed between the two sliding plates (3), and an electric push cylinder (5) is fixedly installed on the side end of the feeding hopper (2). Both filter plates (4) are slidably connected to the feed hopper (2), and the top of the electric push cylinder (5) is connected to a sliding plate (3).

2. The cement grinding feeding device as described in claim 1, characterized in that, A motor (6) is fixedly installed at the end of the conveying pipe (1), and a first gear (7) is fixedly installed at the side end of the motor (6).

3. The cement grinding and feeding device as described in claim 1, characterized in that, The conveying pipe (1) is rotatably mounted with a screw rod (9), and a second gear (8) is fixedly mounted at the end of the screw rod (9). The second gear (8) meshes with the first gear (7).

4. The cement grinding feeding device as described in claim 1, characterized in that, The bottom end of the conveying pipe (1) is fixedly installed with a base (11).

5. A cement grinding and feeding device as described in claim 4, characterized in that, Two recycling plates (12) are fixedly installed on the top of the base (11).

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