Wear-resistant ball mill feeding bent pipe

Abstract

The utility model discloses a wear-resistant ball mill feeding elbow which comprises a feeding elbow body and flange plates, and the flange plates are welded to the two ends of the feeding elbow body respectively. A lining pipe is arranged in the feeding bent pipe in a sleeving manner; outer threads are arranged on the outer sides of the two ends of the lining pipe respectively. Internal threads are arranged on the inner sides of flange plates at the two ends of the feeding bent pipe; the connecting piece is in a circular ring shape; the external thread of the lining pipe is fixedly connected with the internal thread of the flange plate through a connecting piece; threads are arranged on the inner side and the outer side of the connecting piece. The threads on the connecting piece are respectively matched with the external threads of the liner tube and the internal threads of the flange plate for use; a rib plate A and a rib plate B are welded to the bottom of the feeding bent pipe. The rib plate A and the rib plate B are oppositely arranged; the bottom plate is horizontally welded to the bottom ends of the rib plate A and the rib plate B. The feeding elbow pipe has the remarkable beneficial effects in the aspects of structural stability, convenience in installation and maintenance, strength stability, adaptability, cost effectiveness and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of ball mill feed elbow structure, in particular to a wear-resistant ball mill feed elbow. Background Art

[0002] At present, there is a relative lack of research on ball mill feeding methods in China, and few in-depth and comprehensive results have been achieved. In most cases, the feeding part is in the form of a chute, and when it reaches the feeding end of the ball mill, the "square and round" shrinking method is used. However, this method has obvious disadvantages, that is, the "square and round" interface will still face greater wear problems, and excessive wear will also occur inside the ball mill, which not only affects the normal operation and service life of the equipment, but also limits the improvement of production efficiency and quality to a certain extent. Utility Model Content

[0003] In order to solve the problems existing in the prior art, the utility model provides a wear-resistant ball mill feed elbow, which solves the above technical problems.

[0004] To achieve the purpose of the utility model, the utility model adopts the following technical scheme: a wear-resistant ball mill feed elbow, comprising a feed elbow and a flange, flanges are welded at both ends of the feed elbow respectively; an inner liner is sleeved inside the feed elbow; external threads are respectively arranged on the outer sides of the two ends of the inner liner; internal threads are arranged on the inner sides of the flanges at both ends of the feed elbow; the connecting piece is in a circular ring shape; the external thread of the inner liner and the internal thread of the flange are connected and fixed by the connecting piece; threads are arranged on both sides of the connecting piece; the threads on the connecting piece are respectively used in conjunction with the external thread of the liner and the internal thread of the flange; ribs A and B are respectively welded at the bottom of the feed elbow; the ribs A and B are arranged opposite to each other; the bottom ends of the ribs A and B are horizontally welded to the bottom plate.

[0005] Furthermore, a plurality of bolt holes are arranged along the circumference of the flange.

[0006] Furthermore, two circular grooves are arranged opposite to each other on the plate surface of the connecting member.

[0007] Compared with the prior art, the utility model has the following beneficial effects:

[0008] The structure uses a connector to connect the flange and the liner, without the need for complicated welding or bolt tightening processes, making the installation process simpler and faster. At the same time, when the liner needs to be replaced or repaired, it is only necessary to remove the connector and replace the liner, which reduces maintenance costs and time. In addition, the addition of the liner also increases the service life of the feed elbow, increases wear resistance and effectively reduces costs. The ribs A and B welded at the bottom of the feed elbow, and the bottom plates welded horizontally at their bottom ends, not only enhance the overall strength of the feed elbow, but also improve its stability. When subjected to greater external pressure or impact, it can effectively prevent deformation or rupture. Therefore, the feed elbow has shown significant beneficial effects in terms of structural stability, installation and maintenance convenience, strength stability, adaptability and cost-effectiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structural section of the utility model;

[0010] Figure 2 It is a front view schematic diagram of the utility model;

[0011] In the figure: feed elbow-1, flange-2, connector-3, liner pipe-4, rib plate A-5, rib plate B-6, bottom plate-7, bolt hole-8, groove-9. DETAILED DESCRIPTION

[0012] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention:

[0013] like Figure 1-2As shown, a wear-resistant ball mill feed elbow comprises a feed elbow 1 and a flange 2, wherein flanges 2 are welded at both ends of the feed elbow 1, and internal threads matching the external threads of an inner liner 4 are processed on the inner side thereof; an inner liner 4 is sleeved inside the feed elbow 1, which is made by melting and sintering an old cylinder liner replaced by a ball mill, and the inner liner 4 is sleeved into the feed elbow 1 so that the external threads at both ends are exposed on the inner side of the flange 2; external threads are respectively provided on the outer sides of both ends of the inner liner 4; internal threads are provided on the inner sides of the flanges 2 at both ends of the feed elbow 1; the connecting piece 3 is in the shape of a ring, and threads are processed on both the inner and outer sides thereof, wherein the inner threads match the external threads of the inner liner 4, and the outer threads match the internal threads of the flange 2. The outer thread of the inner liner pipe 4 is connected and fixed with the inner thread of the flange 2 by a connector 3; the connector 3 is provided with threads on both the inner and outer sides; the threads on the connector 3 are respectively used in conjunction with the outer thread of the liner pipe 4 and the inner thread of the flange 2, and the connector 3 is screwed into the two ends of the inner liner pipe 4 respectively, and the inner thread of the connector 3 is matched with the outer thread of the inner liner pipe 4, and the outer thread of the connector 3 is matched with the inner thread of the flange 2, so as to fix the inner liner pipe 4 inside the feed elbow 1; the bottom of the feed elbow 1 is respectively welded with rib plates A5 and B6; the rib plates A5 and B6 are arranged opposite to each other; the bottom ends of the rib plates A5 and B6 are horizontally welded with a bottom plate 7 to ensure the stability of the entire structure.

[0014] Specifically, a plurality of bolt holes 8 are provided along the circumference of the flange 2 to facilitate fixing the feed elbow 1 to the ball mill.

[0015] Specifically, two circular grooves 9 are arranged on the plate surface of the connecting member 3. The construction personnel can insert the U-shaped member into the two circular grooves 9 to rotate and fix or remove the connecting member 3 in one direction.

[0016] During the operation, the inner liner pipe 4 is inserted from the left end of the feed elbow pipe 1 into the feed elbow pipe 1, ensuring that the external threads at both ends are exposed on the inner side of the flange 2. The construction personnel screw the connector 3 into the two ends of the inner liner pipe 4 respectively, and preliminarily fix the inner liner pipe 4 by matching the inner thread of the connector 3 with the external thread of the inner liner pipe 4. Then, the connector 3 is connected to the flange 2 by matching the outer thread of the connector 3 with the inner thread of the flange 2, ensuring that the inner liner pipe 4 is firmly fixed inside the feed elbow pipe 1. The feed elbow pipe 1 is fixed to the ball mill by bolts through the multiple bolt holes 8 arranged along the circumference of the flange 2. In the case where the inner liner pipe 4 needs to be tightened or removed, the construction personnel can use a U-shaped piece and insert it into the two circular grooves 9 arranged oppositely on the upper plate surface of the connector 3, so that the construction personnel can rotate the connector 3 in one direction to fix or remove it, thereby adjusting or removing the inner liner pipe 4. After assembly is complete, a final inspection of the entire structure is performed to ensure that all components are installed correctly, connections are secure, and there is no looseness or misalignment.

[0017] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be covered by the protection scope of the utility model.

Claims

1. A wear-resistant ball mill feed elbow, comprising a feed elbow (1) and a flange (2), characterized in that: Flanges (2) are welded to the two ends of the feed elbow (1); an inner liner (4) is sleeved inside the feed elbow (1); external threads are respectively provided on the outer sides of the two ends of the inner liner (4); internal threads are provided on the inner sides of the flanges (2) at both ends of the feed elbow (1); the connecting piece (3) is in the shape of a circular ring; the external threads of the inner liner (4) and the internal threads of the flange (2) are connected and fixed by the connecting piece (3); threads are provided on both the inner and outer sides of the connecting piece (3); the threads on the connecting piece (3) are respectively used in conjunction with the external threads of the liner (4) and the internal threads of the flange (2); a rib plate A (5) and a rib plate B (6) are respectively welded to the bottom of the feed elbow (1); the rib plate A (5) and the rib plate B (6) are arranged opposite to each other; the bottom ends of the rib plates A (5) and B (6) are horizontally welded to a bottom plate (7).

2. The wear-resistant ball mill feed elbow according to claim 1, characterized in that: A plurality of bolt holes (8) are arranged along the circumference of the flange (2).

3. The wear-resistant ball mill feed elbow according to claim 1, characterized in that: The connecting member (3) is provided with two circular grooves (9) facing each other on its plate surface.

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