Ball feeding and discharging mechanism of ball mill

Abstract

The utility model discloses a ball feeding and discharging mechanism of a ball mill, which comprises a storage bin, a plurality of grooves are arranged on the outer cambered surface of a guide plate, the output end of an amplitude motor performs amplitude motion to drive the grooves to swing through the guide plate so as to realize the switching of communication between the grooves and the storage bin and between the grooves and a feeding hopper, and a plurality of arc-shaped grooves are arranged on the top surface of an inclined plate. The total arc lengths of the multiple arc-shaped grooves are different, the inclined plates incline downwards in the direction close to the output end of the feeding hopper, and the included angle between the planes where the two inclined plates are located is 120-160 degrees, so that the grooves are communicated and switched with the storage bin and the feeding hopper, and the grooves carry grinding balls to alternately feed from the two sides of the flow guide plate; accumulation of the grinding balls at the output end of the feeding hopper is reduced, and the grinding balls can conveniently flow into the ball mill.

Description

Technical Field:

[0001] The utility model relates to the technical field of pulp processing, and particularly relates to a ball mill ball adding and discharging mechanism. Background Art:

[0002] After the ore is crushed by a crusher, it is transported to a ball mill through a conveyor belt for preliminary grinding. The ground pulp is then discharged into a classifier for classification. A large number of grinding balls need to be intermittently added to the ball mill. By operating the electric push rod on the side of the storage bin, the electric push rod drives the baffle to move and cancel the sealing of the bottom end of the storage bin, and the grinding balls are discharged from the storage bin into the ball mill through the discharging mechanism.

[0003] The existing discharging mechanism mainly consists of a feeding funnel and a herringbone deflector. The roughness of both sides of the deflector is different. The deflector is fixed at the input end of the feeding funnel to divide the flow of the grinding balls, so that the flow rates of the grinding balls flowing on both sides of the deflector are different. When a large number of grinding balls enter the feeding funnel, the grinding balls on both sides will accumulate at the output end of the feeding funnel, causing blockage at the output end of the feeding funnel. Content of the Utility Model:

[0004] Therefore, the purpose of the present utility model is to provide a ball mill ball adding and discharging mechanism to overcome the problem in the prior art that the existing discharging mechanism mainly consists of a feeding funnel and a herringbone deflector, the roughness of both sides of the deflector is different, the deflector is fixed at the input end of the feeding funnel to divide the flow of the grinding balls, so that the flow rates of the grinding balls flowing on both sides of the deflector are different, and when a large number of grinding balls enter the feeding funnel, the grinding balls on both sides will accumulate at the output end of the feeding funnel, causing blockage at the output end of the feeding funnel.

[0005] The present utility model is implemented by the following technical solutions:

[0006] A ball mill ball adding and discharging mechanism includes a storage bin. The output end of the storage bin is fixedly communicated with a feeding funnel. The output end of the feeding funnel is fixedly communicated with the ball mill. An amplitude motor is fixedly connected to the side wall of the feeding funnel. The output end of the amplitude motor penetrates into the feeding funnel and is fixedly sleeved with a deflector. The output end of the amplitude motor is rotationally connected to the feeding funnel. The deflector is rotatably arranged in a fitting manner at the input end of the feeding funnel. A plurality of grooves are formed on the outer arc surface of the deflector. The amplitude movement of the output end of the amplitude motor drives the grooves to swing through the deflector, so as to realize the switching of the communication between the grooves and the storage bin and the feeding funnel respectively.

[0007] Preferably, the included angle between the connecting line of the centers of adjacent grooves and the center of the deflector is 45° - 90°.

[0008] Preferably, the cross-section of the groove is an arc surface, and the included angle between the two arc ends of the groove and the center of the circle where the groove is located is 35° - 50°.

[0009] Preferably, two inclined plates are fixedly connected to the inner bottom surface of the feeding funnel. A plurality of arc-shaped grooves are formed on the top surface of the inclined plates. The total arc lengths of the plurality of arc-shaped grooves are different. The inclined direction of the inclined plates is inclined downward along the direction close to the output end of the feeding funnel.

[0010] Preferably, the included angle between the planes where the two inclined plates are located is 120°-160°.

[0011] Preferably, an elastic iron sheet is arranged in the groove. Both ends of the elastic iron sheet are attached to both ends of the groove and fixedly connected to the surface of the diversion plate.

[0012] Advantages of the present utility model: A diversion plate is rotatably connected in the feeding funnel through an amplitude motor. The output end of the amplitude motor drives the groove to swing through the diversion plate, so that the switching of the communication between the groove and the storage bin and the feeding funnel respectively is realized. Thus, the groove drives the grinding balls to feed alternately from both sides of the diversion plate, reducing the accumulation of grinding balls at the output end of the feeding funnel and facilitating the grinding balls to flow into the ball mill. Description of the drawings:

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is the structural diagram of the present utility model;

[0015] Figure 2 It is the right view of the structure of the present utility model;

[0016] Figure 3 It is the three-dimensional view of the structure of the present utility model.

[0017] In the figure: storage bin 1, feeding funnel 2, diversion plate 3, amplitude motor 4, groove 5, elastic iron sheet 6, inclined plate 7, arc-shaped groove 8. Specific embodiments:

[0018] In order to make the purpose and advantages of the present utility model more clear, the following further describes the present utility model in combination with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0019] The following describes the preferred embodiments of the present utility model with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present utility model and do not limit the protection scope of the present utility model.

[0020] It should be noted that in the description of the present utility model, the terms indicating the direction or positional relationship such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description, rather than indicating or implying that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0021] In addition, it should also be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0022] As Figures 1-3 shown, the present utility model provides the following technical solution: a ball mill ball adding and discharging mechanism, including a storage bin 1. The output end of the storage bin 1 is fixedly communicated with a feeding funnel 2. The output end of the feeding funnel 2 is fixedly communicated with the ball mill. A vibration motor 4 is fixedly connected to the side wall of the feeding funnel 2. The output end of the vibration motor 4 penetrates into the feeding funnel 2 and is fixedly sleeved with a guide plate 3. The output end of the vibration motor 4 is rotationally connected to the feeding funnel 2. The guide plate 3 is rotatably arranged in a fitting manner at the input end of the feeding funnel 2. A plurality of grooves 5 are formed on the outer arc surface of the guide plate 3. The amplitude movement of the output end of the vibration motor 4 drives the grooves 5 to swing through the guide plate 3, so as to realize the switching of the communication between the grooves 5 and the storage bin 1 and the feeding funnel 2 respectively.

[0023] Please refer to Figure 1 shown. During the use process, when it is necessary to add grinding balls into the ball mill, the operator operates the controller to make the electric push rod and the vibration motor 4 at the side end of the storage bin 1 start to work. The electric push rod drives the baffle to move to remove the closure of the bottom end of the storage bin 1. The grinding balls enter the grooves 5 communicated with the storage bin 1. The output end of the vibration motor 4 drives the guide plate 3 to swing. The guide plate 3 drives the grooves 5 to swing and gradually communicate with the feeding funnel 2. The grooves 5 drive the internal grinding balls to rotate and pour into the feeding funnel 2. The grinding balls entering the feeding funnel 2 are discharged from the output end of the feeding funnel 2 into the ball mill, realizing the ball adding operation of the ball mill. The output end of the vibration motor 4 drives a plurality of grooves 5 to swing slowly through the guide plate 3, thereby realizing the alternating falling of the grinding balls from both sides of the guide plate 3, reducing the accumulation of the grinding balls at the output end of the feeding funnel, and facilitating the flow of the grinding balls into the ball mill. After the ball adding is completed, the operator operates the controller to make the electric push rod at the side end of the storage bin 1 work to drive the baffle to move to close the bottom end of the storage bin 1.

[0024] The included angle between the connection line of the centers of adjacent grooves 5 and the center of the diversion plate 3 is 45°-90°.

[0025] Please combine with Figure 1 As shown in the figure, during the use process, when the diversion plate 3 swings driven by the output end of the amplitude motor 4, when one of the grooves 5 communicates with the feeding hopper 2, there must be a groove 5 directly below the storage bin 1 to receive the grinding balls falling inside the storage bin 1.

[0026] The cross-section of the groove 5 is an arc surface, and the included angle between the two ends of the arc of the groove 5 and the center of the circle where the groove 5 is located is 35°-50°.

[0027] Please combine with Figure 1 As shown in the figure, during the use process, while realizing the quantitative setting of the grinding balls entering the groove 5, it is also convenient for the grinding balls in the groove 5 to slide out.

[0028] Two inclined plates 7 are fixedly connected to the inner bottom surface of the feeding hopper 2. Multiple arc-shaped grooves 8 are opened on the top surface of the inclined plate 7. The total arc lengths of the multiple arc-shaped grooves 8 are different. The inclined direction of the inclined plate 7 is inclined downward along the direction close to the output end of the feeding hopper 2.

[0029] Please combine with Figure 1 As shown in the figure, during the use process, the grinding balls falling from both sides of the diversion plate 3 fall into the arc-shaped grooves 8 on the inclined plate 7, and then slide along the arc-shaped grooves 8 and finally enter the ball mill from the output end of the feeding hopper 2. The total arc lengths of the multiple arc-shaped grooves 8 are different, so that the path lengths of the grinding balls sliding in the arc-shaped grooves 8 per unit time are different, realizing the alternate falling of the grinding balls sliding in different arc-shaped grooves 8 and reducing the accumulation of grinding balls at the output end of the feeding hopper.

[0030] The included angle between the planes where the two inclined plates 7 are located is 120°-160°.

[0031] Please combine with Figure 1 As shown in the figure, during the use process, the included angle between the planes where the two inclined plates 7 are located is 120°-160°, realizing the speed limit of the grinding balls falling on the inclined plate 7 and preventing the grinding balls from flowing into the ball mill too fast and hitting the internal equipment of the ball mill, resulting in equipment deformation.

[0032] An elastic iron sheet 6 is arranged inside the groove 5. The two ends of the elastic iron sheet 6 are attached to the two ends of the groove 5 and fixedly connected to the surface of the diversion plate 3.

[0033] Please combine with Figure 1As shown, during use, when the groove 5 communicates with the bottom end of the storage bin 1, the grinding balls in the storage bin 1 push the corresponding elastic iron sheets 6 to deform, causing the grinding balls to enter the groove 5. The grinding balls in the groove 5 communicating with the feeding funnel 2 are being discharged from the groove 5, and the number of grinding balls gradually decreases. When the elastic force of the elastic iron sheet 6 itself can push the grinding balls in the groove 5 to move, the elastic iron sheet 6 pushes the grinding balls to completely slide out of the groove 5, facilitating the groove 5 to be filled with a fixed quantity of grinding balls again during swinging.

[0034] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A ball mill feeding and discharging mechanism, comprising a storage bin, the output end of which is fixedly connected to a feeding hopper, the output end of which is fixedly connected to a ball mill, characterized in that: The side wall of the feeding funnel is fixedly connected to an amplitude motor, the output end of the amplitude motor penetrates into the feeding funnel and is fixedly covered with a guide plate, the output end of the amplitude motor is rotatably connected to the feeding funnel, the guide plate is rotatably arranged at the input end of the feeding funnel, and a plurality of grooves are formed on the outer arc surface of the guide plate. The amplitude motion of the output end of the amplitude motor drives the grooves to swing through the guide plate to realize the switching of the grooves to be connected with the storage bin and the feeding funnel respectively.

2. A ball mill adding and discharging mechanism according to claim 1, characterized in that: The angle between the center of adjacent grooves and the line connecting the center of the guide plate is 45°-90°.

3. A ball mill adding and discharging mechanism according to claim 2, characterized in that: The cross section of the groove is an arc surface, and the angles between the two ends of the arc of the groove and the center of the circle where the groove is located are 35°-50°.

4. A ball mill adding and discharging mechanism according to any one of claims 1 to 3, characterized in that: Two inclined plates are fixedly connected to the inner bottom surface of the feeding funnel, and a plurality of arc grooves are opened on the top surface of the inclined plates. The total arc lengths of the plurality of arc grooves are different, and the inclined direction of the inclined plates is arranged to be inclined downward along the direction close to the output end of the feeding funnel.

5. A ball mill adding and discharging mechanism according to claim 2 or 3, characterized in that: The included angle between the planes where the two inclined plates are located is 120°-160°.

6. A ball mill adding and discharging mechanism according to claim 5, characterized in that: An elastic iron sheet is arranged in the groove, and two ends of the elastic iron sheet are fitted with two ends of the groove and fixedly connected with the surface of the guide plate.

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