Sealing leakage-proof device for feed port of ball mill

Abstract

A sealing and leakage-proof device for a feeding port of a ball mill comprises a ball mill feeding end barrel capable of being fixed to a feeding pipe of the ball mill, an arc-shaped plate, a feeding pipe sleeve, a sealing ring and a double-hoop. The arc-shaped plate is connected with the rubber feeding pipe sleeve; the feeding pipe sleeve is fixed to a ball mill feeding pipe through the double clamps, then the arc-shaped plate and the rubber feeding pipe sleeve are connected and pushed into a ball mill feeding end barrel together with the ball mill feeding pipe, and an open ring of the arc-shaped plate and the ball mill feeding end barrel are attached to form a sealed leakage-proof area. The ball mill feeding port has the advantages of being capable of avoiding gaps caused by abrasion of a sealing ring on the contact face of the ball mill feeding port body and the feeding pipe and leakage of the feeding end of the ball mill when ore pulp is large and flows back, improving sealing and leakage-proof effects, avoiding influence of slurry leakage of the ball mill on working environment order and improving the equipment operation rate of the ball mill, simple to manufacture and install, low in cost and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of ball mills, in particular to a sealing and leak-proof device for a ball mill feed port. Background Art

[0002] Ball mills are widely used in mining, chemical and building materials industries due to their excellent crushing and grinding characteristics. At present, the sealing and leak-proof measures for the ball mill feed port are generally to set a sealing ring on the contact surface between the ball mill feed port body and the feed pipe. In actual use, after the ball mill has been running for a period of time, the sealing ring set on the contact surface between the feed port body and the feed pipe will produce wear and gap, which will eventually lead to leakage of the ball mill feed port. When there is too much slurry in the ball mill, the ball mill sometimes has slurry backflow during operation, which leads to leakage of slurry from the sealing ring between the ball mill feed port and the feed pipe.

[0003] To solve the above problems, Chinese patent CN 212702231 U discloses "a leakage-proof feeding mechanism for a ball mill", which includes an inner sleeve arranged in the feed port of the ball mill and a feeding mechanism for conveying materials to the feed port, the inner diameter of the inner sleeve is narrow in the middle and wide at both ends along its axial direction, and the feeding mechanism includes a feeding pipe extending to the mouth of the inner sleeve, which can prevent leakage of the ball mill. The inner sleeve is arranged at the feed port of the ball mill to increase the anti-scouring and wear ability, and the inner sleeve is arranged to have an inner diameter that is narrow in the middle and wide at both ends along the axial direction, which increases the wear resistance of the inner sleeve and enables the material to enter the ball mill more concentratedly. The feeding pipe extends to the mouth of the inner sleeve to ensure that the material can accurately enter the ball mill, which can reduce the occurrence of leakage, reduce the maintenance frequency and difficulty, and improve efficiency. However, when the amount of slurry in the ball mill is large and the slurry backflow occurs in the rotating motion state, the inner sleeve that is narrow in the middle and wide at both ends cannot block the backflow of slurry, resulting in leakage failure; Chinese patent CN 219965042U discloses "a leakage prevention device for the feeding end of a ball mill", which mainly includes a retaining edge, a chute, a sealing ring, and a water receiving trough. A retaining edge is installed at the feeding end of the ball mill, and the retaining edge is used to prevent the slurry in the feeding end from leaking out. A feeding port for placing the chute is arranged on the retaining edge, and a sealing ring is installed between the retaining edge and the feeding end. A rubber sleeve is used to seal the gap between the chute and the feeding port to prevent the splashing slurry in the feeding end from leaking out at the gap position. A water receiving trough is arranged directly below the connection between the retaining edge and the feeding end, which can effectively prevent the backflow and splashing slurry from leaking out, ensure the clean working environment of the ball mill, and avoid safety accidents. However, there is a problem that the retaining edge will rotate with the ball mill, and there is wear between the retaining edge and the feeding pipe of the ball mill, and there is a problem that the retaining edge needs to be stopped regularly to replace, which affects the equipment operation rate of the ball mill; Chinese patent CN202460761U discloses "a sealing device for a ball mill feeding system", which includes a ball mill and a feeding trolley. A feeding end cover is installed at one end of the ball mill, and a feeding pipe is installed on the feeding trolley. The feeding pipe extends into the ball mill from the feed end cover port. An annular wear-resistant rubber ring A is arranged between the inner wall of the feed end cover port and the outer wall of the feed pipe. A wear-resistant rubber ring B is sleeved on the feed pipe. The diameter of the wear-resistant rubber ring B is larger than the diameter of the wear-resistant rubber ring A, and the sides corresponding to the wear-resistant rubber ring B and the wear-resistant rubber ring A are tightly attached together, which can prevent the slurry inside the ball mill from overflowing from the end cover port during operation, reduce the labor intensity of workers, and improve the operation efficiency of the equipment. However, there is a problem that the wear-resistant rubber ring will rotate with the ball mill, and there will be wear between the wear-resistant rubber ring and the ball mill feed pipe, and there is a need to stop the machine regularly to replace the wear-resistant rubber ring. Also, when slurry flows back into the ball mill, the slurry will cause wear to the wear-resistant rubber ring and the slurry inlet pipe extending into the ball mill.

[0004] Therefore, it is of practical significance to develop a sealing and leak-proof device for the feed inlet of a ball mill. Summary of the invention

[0005] The task of the utility model is to overcome the deficiencies of the prior art and provide a sealing and leak-proof device for a ball mill feed port.

[0006] In order to complete the above tasks, this new type of use adopts the following technical solutions:

[0007] The invention discloses a sealing and leak-proof device for a ball mill feed port, comprising a ball mill feed end cylinder which can be fixed on a ball mill feed pipe, an arc plate, a feed pipe sleeve, a sealing ring and a double clamp; the arc plate is connected with a rubber feed pipe sleeve; the feed pipe sleeve is fixed on the ball mill feed pipe by a double clamp, and then the arc plate and the rubber feed pipe sleeve are connected together with the ball mill feed pipe and pushed into the ball mill feed end cylinder together, so that the arc plate open ring fits with the ball mill feed end cylinder to form a sealing and leak-proof area.

[0008] Compared with the prior art, the utility model has the following advantages or effects:

[0009] (1) Because the one-piece rubber sealing and leak-proof device is designed, the device is fixed on the feed pipe of the ball mill and pushed to the feed end of the ball mill, so that the arc plate of the rubber sealing and leak-proof device fits with the feed port of the ball mill, so it can effectively avoid and solve the problem of gap caused by wear of the sealing ring on the contact surface between the feed port body of the ball mill and the feed pipe, and leakage at the feed end of the ball mill when the slurry volume is large and backflow occurs.

[0010] (2) At the same time, since a rubber sealing ring is added in the gap between the cylinder at the discharge end of the ball mill and the feed pipe sleeve of the one-piece rubber sealing and leak-proof device, it is used as a second layer of protection for sealing and leak-proofing. Therefore, it can effectively improve the sealing and leak-proofing effect, avoid the ball mill leakage affecting the working environment order, and improve the equipment operation rate of the ball mill.

[0011] (3) In addition, since the structure of the ball mill is not changed, the sealing and leak-proof device is simple to manufacture and install, with low cost, and can effectively prevent sealing leakage at the feed port of the ball mill for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The specific structure of the utility model is given by the following drawings.

[0013] Figure 1 The utility model is a schematic diagram of the general assembly of a sealing and leak-proof device for a ball mill feed port.

[0014] Figure 2 for Figure 1 The schematic diagram of the three-dimensional front view of the arc plate and the feed pipe sleeve of the sealing and leak-proof device is shown.

[0015] Figure 3 for Figure 2The schematic diagram of the three-dimensional rear view of the arc plate of the sealing and leak-proof device and the feed pipe sleeve is shown.

[0016] The symbols in the accompanying drawings represent:

[0017] 1. Arc plate 2. Ball mill feed end cylinder 3. Sealing ring 4. Double clamp 5. Ball mill feed pipe 6. Feed pipe sleeve

[0018] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. DETAILED DESCRIPTION

[0019] like Figure 1-3 As shown, the utility model provides a ball mill feed port sealing and leak-proof device, comprising a ball mill feed end barrel (2) that can be fixed on a ball mill feed pipe (5), characterized in that the arc plate (1), a feed pipe sleeve (6), a sealing ring (3) and a double clamp (4); the arc plate (1) and the feed pipe sleeve (6) are connected as a whole; the feed pipe sleeve (6) is fixed to the ball mill feed pipe (5) by a double clamp (4), and then the arc plate (1) and the feed pipe sleeve (6) are connected as a whole and pushed together with the ball mill feed pipe (5) into the ball mill feed end barrel (2), so that the open ring of the arc plate (1) and the ball mill feed end barrel (2) are fitted to form a sealed and leak-proof area.

[0020] The utility model can further include:

[0021] A sealing ring (3) is installed at the contact point between the ball mill feed end cylinder (2) and the feed pipe sleeve (6), which can improve the sealing effect of the ball mill feed pipe (5).

[0022] The arc-shaped plate (1), the feed pipe sleeve (6) and the sealing ring (3) are all made of rubber.

[0023] The above embodiments are only preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention should be considered as equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A ball mill feed inlet sealing and leak-proof device, comprising a ball mill feed end barrel (2) that can be fixed to a ball mill feed pipe (5), characterized in that The invention relates to an arc plate (1), a feed pipe sleeve (6), a sealing ring (3) and a double clamp (4); the arc plate (1) and the feed pipe sleeve (6) are connected as a whole; the feed pipe sleeve (6) is fixed on the ball mill feed pipe (5) by the double clamp (4); then the arc plate (1) and the feed pipe sleeve (6) are connected as a whole and pushed together with the ball mill feed pipe (5) into the ball mill feed end cylinder (2), so that the open ring of the arc plate (1) and the ball mill feed end cylinder (2) are fitted to form a sealed and leakproof area.

2. The device according to claim 1, characterized in that A sealing ring (3) is installed at the contact point between the ball mill feed end cylinder (2) and the feed pipe sleeve (6), which can improve the sealing effect of the ball mill feed pipe (5).

3. The device according to claim 1 or 2, characterized in that The arc-shaped plate (1), the feed pipe sleeve (6) and the sealing ring (3) are all made of rubber.

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