Funnel for adding scrap steel balls to a ball mill and method of use

Abstract

The application relates to the field of ball mill feeding equipment, in particular to a funnel for adding steel balls to a ball mill and a use method, wherein the funnel for adding steel balls to the ball mill comprises a funnel, a cone seat, the funnel is arranged at the feeding end of a feeding pipe fixed at the feeding end of the ball mill, the cone seat is arranged at the discharging end of the funnel, a material cavity is arranged at the joint of the cone seat and the funnel, the material cavity is provided with a first discharging groove in communication with the interior of the funnel and a discharging groove in communication with the feeding pipe, the cone seat is raised along the central axis of the feeding pipe to open the first discharging groove and close the discharging groove, and the cone seat is lowered along the central axis of the feeding pipe to open the discharging groove and close the first discharging groove. The feeding mechanism capable of being opened and closed in the lifting mode is provided through the arranged material cavity, so that the feeding is completed in the mechanical feeding mode, the controllability of the feeding amount is guaranteed, and the overall efficiency is higher compared with manual operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ball mill feeding equipment, in particular to a funnel for adding steel balls to a ball mill and a method for using the funnel to add steel balls to a ball mill. BACKGROUND

[0002] Ball mills are key equipment for further crushing of materials after they have been crushed, and are mainly used in the production of cement, silicate products, new building materials, refractory materials, chemical fertilizers, black and non-ferrous metal ore dressing, and glass ceramics.

[0003] The steel balls discharged from the ball mill are generally fed in a pipe way, that is, a feeding pipe is installed at the feeding end of the ball mill, and the steel balls enter the feeding end of the ball mill from the inside of the feeding pipe. The feeding at the other end of the feeding pipe is generally operated manually. This manual operation method is not only inefficient, but also prone to cause excessive steel balls to enter the feeding end of the ball mill due to a mistake, which causes the ball mill to be unable to work stably. SUMMARY

[0004] The present application provides a funnel for adding steel balls to a ball mill and a method for using the funnel to add steel balls to a ball mill to overcome the deficiencies of the prior art. The specific technical solutions are as follows:

[0005] The funnel for adding steel balls to a ball mill comprises a funnel and a cone seat.

[0006] Specifically, the funnel is arranged at the feeding end of the feeding pipe fixed at the feeding end of the ball mill, the cone seat is arranged at the discharge end of the funnel, a material cavity is arranged at the connection between the cone seat and the funnel, the material cavity has a first discharge slot in communication with the inside of the funnel and a discharge slot in communication with the feeding pipe, the cone seat is raised along the central axis of the feeding pipe to open the first discharge slot and close the discharge slot, and the cone seat is lowered along the central axis of the feeding pipe to open the discharge slot and close the first discharge slot.

[0007] As an improvement of the above technical solution, the funnel is a conical frustum structure with a through hole in the middle, one of the opening ends of the funnel has a diameter larger than that of the feeding pipe, and the bottom of the cone seat has a diameter larger than that of the opening end of the funnel away from the feeding pipe.

[0008] As an improvement of the above technical solution, a plurality of connecting rods are fixed to the inner wall of the funnel, the plurality of connecting rods are welded to the central position of the funnel, an axle sleeve is arranged at the central position, a hoisting rod is arranged to penetrate the inside of the axle sleeve, one end of the hoisting rod is fixed to the tip of the cone seat, the other end of the hoisting rod is integrally formed with a lifting ring, and the lifting ring is used to connect a hoisting machine.

[0009] As the improvement of the above technical scheme, the lower end of the hopper is provided with a sealing plate with the same shape as the discharge end of the hopper, the outer side of the sealing plate is provided with an outer baffle, the bottom of the cone seat is provided with a bottom plate, the cross section of the bottom plate and the outer baffle is L-shaped structure, the end of the bottom plate close to the hopper is fixed with an inner baffle, the first discharge groove is opened on the surface of the sealing plate, the surface of the inner baffle is provided with a second discharge groove matched with the sealing plate, the discharge groove is the gap between the bottom plate and the outer baffle when the bottom plate and the outer baffle are away from each other, and the material cavity is formed by the bottom plate, the outer baffle and the sealing plate.

[0010] As the improvement of the above technical scheme, the inner wall of the sealing plate is provided with a limiting groove, and the inner baffle is arranged in the limiting groove, and when the inner baffle is completely clamped into the limiting groove, the first discharge groove and the second discharge groove are coincided.

[0011] The use method of the hopper for adding steel balls to a ball mill comprises the following steps:

[0012] S1: loading the steel balls into the hopper for adding steel balls to a ball mill as described in the above technical scheme;

[0013] S2: lifting the lifting ring by the crane equipment to make the hopper fit with the cone seat, and moving the discharge end of the hopper into the feeding end of the feeding pipe;

[0014] S3: moving the crane equipment upward to stop feeding when the hopper fits with the cone seat, and moving the crane equipment downward to separate the hopper from the cone seat to feed.

[0015] The beneficial effects of the present application are as follows:

[0016] 1. The material cavity is provided, which provides a feeding mechanism capable of being opened and closed in a lifting manner. The material cavity serves as a temporary storage cavity for the steel balls, and can limit the total amount of feeding. In this way, the feeding is completed in a mechanical feeding manner, and the controllability of the feeding amount is ensured. Compared with manual operation, the overall efficiency is higher.

[0017] 2. The crane provides a moving structure for the whole hopper. The moving structure can not only adjust the position of the hopper, but also cooperate with the structure of the hopper itself to form a function of controlling the lifting of the cone seat, so as to achieve the purpose of spacing the feeding side and the discharging side of the material cavity. That is, the lifting of the cone seat and the transfer of the hopper are both completed by the crane, which is a power structure, and the use is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 2 is a structural schematic view of the hopper and the cone seat in a separated state of the present application;

[0019] Figure 2 Fig. 3 is a structural schematic view of the hopper and the cone seat in a fitted state of the present application.

[0020] Figure 3 As Figure 1 An enlarged structural schematic view at A in FIG. 1;

[0021] Figure 4 As Figure 2 An enlarged structural schematic view at B in FIG. 1;

[0022] Figure 5 A structural schematic view of the cone seat of the application;

[0023] Figure 6 A structural schematic view of the funnel of the application.

[0024] Reference signs: 10, feeding pipe; 20, funnel; 21, connecting rod; 22, shaft sleeve; 23, sealing plate; 231, first discharging groove; 232, limiting groove; 24, outer baffle; 30, cone seat; 31, hanger rod; 32, hanger ring; 33, inner baffle; 331, second discharging groove; 34, bottom plate; 40, material cavity. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the application more clear and understandable, the application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the application and do not limit the application.

[0026] The existing ball mill feeding operation is generally performed in an artificial way, and the feeding in the artificial operation way not only has low efficiency, but also is prone to cause excessive steel balls to enter the feeding end of the ball mill due to the fault operation, resulting in that the ball mill cannot stably work.

[0027] Example 1

[0028] In order to solve the above technical problems, please refer to Figures 1-4 , a funnel for adding steel ball to a ball mill is provided, which comprises: a funnel 20 and a cone seat 30.

[0029] Specifically, the funnel 20 is arranged at the feeding end of the feeding pipe 10 fixed at the feeding end of the ball mill, the cone seat 30 is arranged at the discharging end of the funnel 20, the connecting part of the cone seat 30 and the funnel 20 is provided with a material cavity 40, the material cavity 40 has a first discharging groove 231 in communication with the inside of the funnel 20 and a discharging groove in communication with the feeding pipe 10, the cone seat 30 is raised along the central axis of the feeding pipe 10 to open the first discharging groove 231 and close the discharging groove, and the cone seat 30 is lowered along the central axis of the feeding pipe 10 to open the discharging groove and close the first discharging groove 231.

[0030] When the cone seat 30 is lifted, the first discharge slot 231 is opened, at this time the steel balls in the hopper 20 enter the material cavity 40 from the first discharge slot 231, and since the discharge slot is closed, the steel balls entering the material cavity 40 cannot enter the feeding pipe 10, and when the cone seat 30 is lowered, the first discharge slot 231 is closed and the discharge slot is opened, at this time the steel balls enter the feeding pipe 10 from the discharge slot, and the first discharge slot 231 is closed or causes the steel balls in the hopper 20 to be unable to enter the material cavity 40, so that the purpose of quantitative feeding can be achieved.

[0031] The cone seat 30 needs to be additionally installed with a lifting device, and the lifting of the cone seat 30 is controlled through the additionally installed lifting device. The lifting device can be a crane, a pneumatic cylinder, a hydraulic cylinder, a lead screw moving mechanism, etc.

[0032] In an embodiment, please refer to Figure 1 and Figure 2 The hopper 20 is a conical structure with a through hole in the middle. The diameter of one of the open ends of the hopper 20 is greater than the diameter of the feeding pipe 10, and the diameter of the bottom of the cone seat 30 is greater than the diameter of the open end of the hopper 20 away from the feeding pipe 10.

[0033] This is to set the hopper 20 to be detachable, that is, the hopper 20 is clamped with the end of the feeding pipe 10 with a larger diameter. This setting can ensure the stability of the structure, and there is no connecting structure. In order to further ensure the stability of the structure, the hopper 20 and the feeding pipe 10 can be set to a polygonal structure, so that the position of the edge line will form a constraint when connected, strengthening the stability between the structures.

[0034] In an embodiment, please refer to Figure 5 and Figure 6 The inner wall of the hopper 20 is fixed with a plurality of connecting rods 21. The plurality of connecting rods 21 are welded at the center position of the hopper 20. The center position is provided with a shaft sleeve 22. The inside of the shaft sleeve 22 is provided with a lifting rod 31 penetrating through. One end of the lifting rod 31 is fixed with the tip of the cone seat 30. The other end of the lifting rod 31 is integrally formed with a lifting ring 32. The lifting ring 32 is used to connect the crane device. That is, the shaft sleeve 22 and the lifting rod 31 form a position limitation, which can ensure that the cone seat 30 is always at the center position of the hopper 20, avoiding position deviation during the lifting of the cone seat 30, so that the lifting of the cone seat 30 cannot close the first discharge slot 231 or the discharge slot.

[0035] In an embodiment, please refer to Figure 3 and Figure 4The lower end of the hopper 20 is provided with a sealing plate 23 which has the same shape as the discharge end of the hopper 20, the outer side of the sealing plate 23 is provided with an outer baffle 24, the bottom of the cone seat 30 is provided with a bottom plate 34 which has an L-shaped structure in section like the outer baffle 24, the end of the bottom plate 34 close to the hopper 20 is fixed with an inner baffle 33, the first discharge slot 231 is formed on the surface of the sealing plate 23, and the surface of the inner baffle 33 is provided with a second discharge slot 331 which matches the sealing plate 23, and the gap between the bottom plate 34 and the outer baffle 24 when they are away from each other is the discharge slot.

[0036] That is, the material cavity 40 is formed by the bottom plate 34, the outer baffle 24 and the sealing plate 23, so when the hopper 20 is placed on the feeding pipe 10 in a stable position, the cone seat 30 is controlled to be lifted until the inner baffle 33 coincides with the second discharge slot 331 and the first discharge slot 231 on the sealing plate 23, in this case, the moving path of the steel balls is opened, that is, the steel balls in the hopper 20 enter the material cavity 40 from the second discharge slot 331 and the first discharge slot 231, then the cone seat 30 is controlled to be lowered until the inner baffle 33 is out of coincidence with the second discharge slot 331 and the first discharge slot 231 on the sealing plate 23, the inner baffle 33 closes the first discharge slot 231, and the sealing plate 23 closes the second discharge slot 331, in this case, the steel balls in the hopper 20 cannot enter the material cavity 40, and because the bottom plate 34 moves downward, a gap is formed between the outer baffle 24 and the bottom plate 34, which is the discharge slot to discharge the steel balls, and because the first discharge slot 231 and the second discharge slot 331 are both closed, the material entering the feeding pipe 10 is quantified, effectively avoiding the problem that the amount of material sent cannot be controlled.

[0037] In the above technical solution, the position of the cone seat 30 is limited, but the cone seat 30 is only limited by the bottom plate 34, when it is lifted, the bottom plate 34 will hit the sealing plate 23, and after multiple lifting operations, the bottom plate 34 may be bent, and the bent bottom plate 34 may cause the steel balls to leak from the gap caused by bending, in order to solve this technical problem, please refer to Figure 3 and Figure 4 The inner wall of the sealing plate 23 is provided with a limiting groove 232, and the inner baffle 33 is arranged in the limiting groove 232, when the inner baffle 33 is completely clamped into the limiting groove 232, the first discharge slot 231 and the second discharge slot 331 are coincided, that is, the position of the inner baffle 33 is limited by the limiting groove 232, and at the same time, when the cone seat 30 is lifted, the limiting groove 232 will also impact the inner baffle 33, that is, the maximum displacement distance of the cone seat 30 is limited, reducing the impact received by the bottom plate 34, avoiding the problem of bending of the bottom plate 34.

[0038] Embodiment two

[0039] In order to cooperate with the technical solution in embodiment one, a method for using the funnel for adding steel balls in a ball mill is also provided, including the following steps:

[0040] S1: loading the steel balls into the funnel for adding steel balls in a ball mill as described in embodiment one.

[0041] S2: lifting the lifting ring 32 by the crane equipment to make the funnel 20 fit with the cone seat 30, and moving the discharge end of the funnel 20 into the feeding end of the feeding pipe 10.

[0042] S3: lifting the crane equipment upward to stop feeding when the funnel 20 fits with the cone seat 30, and lifting the crane equipment downward to separate the funnel 20 from the cone seat 30 for feeding.

[0043] In the above steps, the steel balls are loaded into the funnel 20 by manual or mechanical means. When the funnel 20 is placed on the ground, the funnel 20 will press on the cone seat 30 due to its own weight. When the crane equipment lifts the lifting ring 32, the lifting rod 31 will pull the cone seat 30 upward. In this case, the funnel 20 will still be tightly pressed on the cone seat 30. During the process, the first discharge groove 231 and the second discharge groove 331 are in a coinciding state due to the close fit between the cone seat 30 and the funnel 20, that is, the steel balls can enter the inside of the material cavity 40. At this time, the discharge groove is in a closed state, so the whole is in a state of stopping feeding. When the crane equipment places the funnel 20 on the feeding pipe 10, the funnel 20 is supported by the feeding pipe 10. If the crane equipment continues to descend, the cone seat 30 and the funnel 20 are separated. At this time, the first discharge groove 231 and the second discharge groove 331 are misaligned and both are closed. The outer baffle 24 and the bottom plate 34 are away from each other, so that a gap is formed between them. The gap acts as a discharge groove to discharge the steel balls. The discharged steel balls enter the inside of the feeding pipe 10, and the feeding is completed.

[0044] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hopper for adding steel balls to a ball mill, characterized in that, The application relates to a funnel (20) provided at the feeding end of a feeding pipe (10) fixed at the feeding end of a ball mill. A cone seat (30) is provided at the discharging end of the funnel (20). A material cavity (40) is arranged at the joint of the cone seat (30) and the funnel (20), the material cavity (40) has a first discharging groove (231) in communication with the inside of the funnel (20) and a discharging groove in communication with the feeding pipe (10). The cone seat (30) is raised along the central axis of the feeding pipe (10) to open the first discharging groove (231) and close the discharging groove, and the cone seat (30) is lowered along the central axis of the feeding pipe (10) to open the discharging groove and close the first discharging groove (231). A plurality of connecting rods (21) are fixed to the inner wall of the funnel (20), the connecting rods (21) are welded to the central position of the funnel (20), the central position is provided with a shaft sleeve (22), the inside of the shaft sleeve (22) is provided with a lifting rod (31) penetrating through, one end of the lifting rod (31) is fixed to the tip of the cone seat (30), the other end of the lifting rod (31) is integrally formed with a lifting ring (32), and the lifting ring (32) is used for connecting a crane device. The lower end of the funnel (20) is provided with a sealing plate (23) which is the same in shape as the discharging end of the funnel (20), the outer side of the sealing plate (23) is provided with an outer baffle (24), the bottom of the cone seat (30) is provided with a bottom plate (34), the section of the bottom plate (34) and the outer baffle (24) is L-shaped structure, one end of the bottom plate (34) close to the funnel (20) is fixed with an inner baffle (33), the first discharging groove (231) is arranged on the surface of the sealing plate (23), the surface of the inner baffle (33) is provided with a second discharging groove (331) matched with the sealing plate (23), and the discharging groove is the gap between the bottom plate (34) and the outer baffle (24) when the bottom plate (34) and the outer baffle (24) are away from each other, and the material cavity (40) is formed by the bottom plate (34), the outer baffle (24) and the sealing plate (23). The inner wall of the sealing plate (23) is provided with a limiting groove (232), the inner baffle (33) is arranged in the limiting groove (232), and when the inner baffle (33) is completely clamped into the limiting groove (232), the first discharging groove (231) and the second discharging groove (331) are coincident. The funnel (20) is a conical structure penetrating through the middle, the diameter of one of the opening ends of the funnel (20) is larger than that of the feeding pipe (10), and the diameter of the bottom of the cone seat (30) is larger than that of the opening end of the funnel (20) away from the feeding pipe (10).

2. A hopper for adding steel balls to a ball mill according to claim 1, characterized in that: The application further discloses a method for adding steel balls into a ball mill, which comprises the following steps:

3. A method of using a hopper for adding steel balls to a ball mill, characterized in that, S1: loading steel balls into the funnel for adding steel balls into a ball mill; S2: lifting the lifting ring (32) by a crane device to make the funnel (20) fit the cone seat (30), and moving the discharging end of the funnel (20) into the feeding end of the feeding pipe (10). ​ S3: the crane device moves up to stop feeding when the hopper (20) is in contact with the cone seat (30), and moves down to feed when the hopper (20) is separated from the cone seat (30).

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