Anti-abrasion device for screen surface supporting frame of grading high-frequency vibrating screen for mine

Abstract

The utility model provides an anti-abrasion device for a screen surface supporting frame of a grading high-frequency vibrating screen for a mine, which reduces or delays the abrasion of supporting strips and the abrasion damage of the screen surface of the vibrating screen, prolongs the service life of the supporting frame and the screen surface, reduces the maintenance workload and saves the production and operation cost. The device comprises a supporting frame (1), supporting strips (2) which are arranged at intervals are welded in the supporting frame (1), the upper end face, exceeding the supporting frame (1), of each supporting strip (2) is welded to the bottom of a round steel (3), a rubber pipe (4) is bonded to the outer surface of each round steel (3), each U-shaped rubber sleeve (5) is sleeved on the corresponding rubber pipe (4) in an inverted buckling mode, and the upper end of each supporting strip (2) extends between two side walls of the corresponding rubber sleeve (5).

Description

Technical Field

[0001] The utility model belongs to the technical field of ore dressing wet grinding and classification, and in particular relates to an anti-wear device for a screen surface supporting frame of a classification high-frequency vibration screen for mines. Background Art

[0002] A certain company's ore dressing plant is performing ball mill grading operations. It uses a cyclone to grade the grinding products. The cyclone underflow products enter the ball mill for regrinding, and the cyclone overflow products, which are qualified products of the grinding operation, enter the high-frequency vibrating screen for inspection and grading. The products on the screen during the inspection and grading are used as waste slag produced by the grinding operation (the main components of which are some detonating cords, wood chips and other stubborn stones that are not suitable for crushing and grinding brought by the mining site. Their quantity is not large, but they are very destructive to the production process of downstream products and will clog the sand pump impeller, the flotation machine impeller cover plate, and the magnetic medium of the magnetic separator). The underflow products of the grading operation are inspected and enter the next process of flotation operation. The processing capacity of a certain company's grinding operation table is 56 tons per hour, and the amount of slurry generated is about 150m 3 / h, the volume of pulp tonnage must be checked and screened through the high-frequency vibrating screen, so the wear of the high-frequency vibrating screen screen surface and the wear of the support frame are common maintenance workloads in the production process. The following two problems often occur in the production process: First, the wear and damage between the support bar and the rubber sleeve. Second, after the wear and damage between the support bar and the rubber sleeve, the screen surface directly contacts the support bar, causing the screen surface to wear and damage rapidly. Under normal circumstances, the entire support frame needs to be replaced once a year, and the screen surface wear and damage needs to be replaced about 3 to 6 months. The cost of replacing the support frame is about 50,000 yuan, and the polyurethane screen surface is replaced once for three sides. About 24,000 yuan, the annual maintenance cost is about 100,000 yuan. Since the grinding operation is an independent system, the system causes the entire ore dressing plant to stop production when it is maintained, thereby affecting the labor productivity of the entire ore dressing plant. Therefore, a new type of utility model is needed to prevent the wear of the support frame of the screen surface of a graded high-frequency vibrating screen for mining, so as to solve the labor and cost problems of replacing the screen surface and replacing the support frame. Utility Model Content

[0003] The utility model aims to improve the quality of the mining industry by improving the wear resistance of the mining industry, thereby reducing or delaying the wear of the supporting bars and the wear and damage of the vibrating screen surface, prolonging the service life of the supporting frame and the screen surface, reducing the maintenance workload and saving the production and operation costs.

[0004] In order to achieve the above technical purpose, the technical solution adopted by the utility model is:

[0005] A wear-proof device for a screen support frame of a graded high-frequency vibrating screen for use in mines, comprising a support frame 1, in which support bars 2 arranged at intervals are welded, each support bar 2 extends beyond the upper end surface of the support frame 1 and is welded to the bottom of a round steel 3, a rubber tube 4 is bonded to the outer surface of each round steel 3, each U-shaped rubber sleeve 5 is invertedly mounted on the rubber tube 4, and the upper end of each support bar 2 extends between the two side walls of a rubber sleeve 5.

[0006] In the above-mentioned anti-wear device for the screen surface support frame of a graded high-frequency vibrating screen for mining, the diameter of the round steel 3 is D1, the thickness of the support bar 2 is d, D1 is equal to d or slightly greater than d, and 5mm≤d≤8mm.

[0007] In the above-mentioned anti-wear device for the screen surface supporting frame of a graded high-frequency vibrating screen for mining, the rubber tube 4 has a diameter D2, a wall thickness of 1 to 2 mm, and one side is cut open.

[0008] In the above-mentioned anti-wear device for the screen surface support frame of a graded high-frequency vibrating screen for mining, the width and length of the support frame 1 are A and B respectively, 1500mm≤B≤3000mm, and 500mm≤A≤2000mm.

[0009] In the above-mentioned anti-wear device for the screen surface support frame of a graded high-frequency vibrating screen for mining, the support bar 2 extends along the width direction of the support frame 1, and the length of the support bar 2 and the length of the round steel 3 are both a.

[0010] In the above-mentioned anti-wear device for the screen surface support frame of the graded high-frequency vibrating screen for mining, the height of the support bar 2 is h, 70mm≤h≤150mm.

[0011] In the above-mentioned anti-wear device for the screen surface support frame of a graded high-frequency vibrating screen for mining, the height of the rubber sleeve 5 is h1, 20mm≤h1≤50mm, and the length is equal to the support bar 2.

[0012] The upper end surface of the support bar 2 is welded to the bottom of a round steel bar 3 with a diameter of D1. The surface of the round steel bar 3 with a diameter of D1 is coated with strong glue and is closely attached to a rubber tube 4 with a diameter of D2, thereby ensuring that the support bar 2, the round steel bar 3 and the rubber tube 4 are fixed and move synchronously as a whole. There is no friction or collision between them, so there is no wear between them.

[0013] The rubber tube 4 is covered with a rubber sleeve 5. When in use, the vibrating screen surface is placed on the anti-wear rubber sleeve, and there will be asynchronous vibration between them, resulting in friction and collision, and wear. Since the contact surface between them is made of soft rubber material, the wear resistance is increased, and the life of the round steel on the support bar, the rubber hose, etc. and the vibrating screen surface is extended.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model welds round steel on the support bar to change the original 90-degree right-angle contact surface on the upper part of the support bar into a circular contact surface, thereby reducing the damage caused by impact during the movement of the U-shaped rubber sleeve.

[0016] 2. The utility model covers a rubber tube on the round steel welded to the support bar and glues it with strong glue, thereby forming an anti-wear device of a three-in-one connected moving body composed of the support bar, the round steel and the rubber tube.

[0017] 3. The utility model puts the U-shaped rubber sleeve on the anti-wear device, thereby changing the original direct collision and friction between the support bar and the rubber sleeve to form wear. During the high-frequency vibration screen production process, the vibration screen surface, the U-shaped rubber sleeve and the anti-wear device will have relative movement, resulting in friction and collision, and the screen surface and the U-shaped rubber sleeve will wear. Before the screen surface and the U-shaped rubber sleeve are worn and damaged, the round steel, support bars, etc. will not be affected, thereby greatly extending the service life of the support frame itself, and also extending the service life of the screen surface, reducing the maintenance workload, and improving labor productivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the connection structure between the support frame and the support bar.

[0019] Figure 2 This is a schematic diagram of the connection structure of support bars, round steel, rubber tubes and rubber sleeves.

[0020] Figure 3 yes Figure 2 Side view of. DETAILED DESCRIPTION

[0021] The specific implementation of the utility model is further described below with reference to the accompanying drawings.

[0022] like Figure 1-3 As shown, a wear-proof device for supporting a screen surface of a graded high-frequency vibrating screen for a mine comprises a supporting frame 1, a supporting bar 2, a round steel 3 with a diameter of D1, a rubber tube 4 with a diameter of D2, and a rubber sleeve 5;

[0023] The support frame 1 contains a regular welded support bar 2, the upper end surface of the support bar 2 is welded to the bottom of a round steel 3 with a diameter of D1, the surface of the round steel 3 with a diameter of D1 is coated with strong glue and tightly adhered to a rubber tube 4 with a diameter of D2, and the rubber tube 4 with a diameter of D2 is covered with a rubber sleeve 5.

[0024] In this embodiment, the support frame 1 and the support bar 2 are both made of 8 mm stainless steel plates.

[0025] In this embodiment, the round steel 3 with a diameter of D1 is made of 8 mm stainless steel bar.

[0026] In this embodiment, the rubber tube 4 with a diameter of D2 is a rubber hose with an inner diameter of 8 mm, an outer diameter of 10 mm, a thickness of 1 mm, and an opening on one side.

[0027] In this embodiment, the rubber sleeve 5 is an inverted U-shaped rubber sleeve with a groove width of 8 mm, a thickness of 5 mm, and an overall width D3 of 18 mm. The top of the groove is arc-shaped and coincides with the upper surface of the rubber tube 4.

[0028] In this embodiment, the service life of the expensive polyurethane screen surface is extended from the original 3 to 6 months to the current 12 to 15 months by manufacturing and installing an anti-wear device on the support frame. The service life of the support frame is also extended from the original 12 months to the current 36 months. The daily shutdown inspection and maintenance workload only requires the replacement of the U-shaped rubber sleeve, which greatly reduces the maintenance workload, saves production and operation costs, and improves labor productivity.

[0029] The protection scope of the present invention includes but is not limited to the above embodiments. The protection scope of the present invention shall be based on the claims. Any replacement, deformation, and improvement of the technology that can be easily thought of by technicians in this field shall fall within the protection scope of the present invention.

Claims

1. A wear-resistant device for a screen support frame of a graded high-frequency vibrating screen for use in mines, comprising a support frame (1), characterized in that: The support frame (1) is welded with support bars (2) arranged at intervals. Each support bar (2) extends beyond the upper end surface of the support frame (1) and is welded to the bottom of a round steel (3). A rubber tube (4) is bonded to the outer surface of each round steel (3). Each U-shaped rubber sleeve (5) is invertedly sleeved on the rubber tube (4). The upper end of each support bar (2) extends between the two side walls of a rubber sleeve (5).

2. The anti-wear device for the screen surface support frame of a graded high-frequency vibrating screen for mining according to claim 1 is characterized in that: The diameter of the round steel (3) is D1, the thickness of the support bar (2) is d, D1 is equal to d or slightly greater than d, and 5mm≤d≤8mm.

3. The anti-wear device for the screen surface support frame of a graded high-frequency vibrating screen for mining according to claim 2 is characterized in that: The diameter of the rubber tube (4) is D2, the wall thickness of the rubber tube is 1 to 2 mm, and one side is cut open.

4. The anti-wear device for the screen surface support frame of a graded high-frequency vibrating screen for mining according to claim 1 is characterized in that: The width and length of the support frame (1) are A and B respectively, 1500mm≤B≤3000mm, and 500mm≤A≤2000mm.

5. The anti-wear device for the screen surface support frame of a graded high-frequency vibrating screen for mining according to claim 1 is characterized in that: The support bar (2) extends along the width direction of the support frame (1), and the length of the support bar (2) and the length of the round steel (3) are a.

6. The anti-wear device for the screen surface support frame of a graded high-frequency vibrating screen for mining according to claim 5 is characterized in that: The height of the support bar (2) is h, 70mm≤h≤150mm.

7. The anti-wear device for the screen surface support frame of a graded high-frequency vibrating screen for mining according to claim 6 is characterized by: The height of the rubber sleeve (5) is h1, 20mm≤h1≤50mm, and the length is equal to the support bar (2).

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