Light wear-resistant nonmetal pipeline

Abstract

The utility model provides a light wear-resistant nonmetal pipeline, which comprises an inner layer pipe, a middle reinforcing layer and an outer layer pipe, the inner layer pipe is arranged on the inner wall of the pipeline and consists of an ultra-high molecular weight polyethylene inner wall and a pad, the ultra-high molecular weight polyethylene inner wall is wrapped by the pad, and a diversion trench is arranged on the ultra-high molecular weight polyethylene inner wall; the middle reinforcing layer is arranged between the inner-layer pipe and the outer-layer pipe and is formed by weaving high-strength fiber bundles; the outer-layer pipe is composed of a glass reinforced plastic pipe and a wear-resistant and corrosion-resistant coating. The light wear-resistant nonmetal pipeline solves the problems that an existing metal pipeline is poor in wear resistance and large in weight.

Description

Technical Field

[0001] The utility model belongs to the technical field of conveying pipelines, and particularly relates to a lightweight and wear-resistant non-metallic pipeline. Background Art

[0002] In many application scenarios, traditional metal pipelines often have problems such as heavy weight and easy corrosion, which bring many inconveniences to transportation, installation and maintenance. At the same time, in some special fields, such as green coal filling mining, the filling slurry pipelines and other conveying pipelines have the problems of heavy weight and inconvenience in transportation and installation. Therefore, it is urgent to develop a non-metallic pipeline that is both lightweight and wear-resistant. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a lightweight and wear-resistant non-metallic pipeline, which solves the problems of poor wear resistance and heavy weight of the existing metal pipelines.

[0004] The technical solution adopted by the utility model is: a lightweight and wear-resistant non-metallic pipeline, which includes an inner layer pipe, an intermediate strengthening layer and an outer layer pipe. The inner layer pipe is arranged on the inner wall of the pipeline and consists of a ultra-high molecular weight polyethylene inner wall and a cushion layer. The cushion layer wraps the ultra-high molecular weight polyethylene inner wall, and diversion grooves are arranged on the ultra-high molecular weight polyethylene inner wall; the intermediate strengthening layer is between the inner layer pipe and the outer layer pipe and is woven by high-strength fiber bundles; the outer layer pipe is composed of a glass steel pipe and a wear-resistant and corrosion-resistant coating.

[0005] The characteristics of the technical solution adopted by the utility model also lie in:

[0006] Further, the inner layer pipe, the intermediate strengthening layer and the outer layer pipe that constitute the pipeline are formed by high-pressure bonding.

[0007] Further, 3 spiral diversion grooves are arranged on the ultra-high molecular weight polyethylene inner wall.

[0008] Further, the opening angle of the diversion groove is 120°, and the width and depth of the diversion groove are both 5-10 mm.

[0009] Further, the spiral of the diversion groove is set in a right-handed manner.

[0010] The beneficial effects of the utility model are:

[0011] The lightweight and wear-resistant non-metallic pipeline of the present utility model adopts an inner layer pipe made of ultra-high molecular weight polyethylene wear-resistant material, effectively improving the wear resistance and corrosion resistance of the pipeline, and extending the service life of the pipeline; the intermediate reinforcing layer enhances the strength and compressive capacity of the pipeline; the outer layer pipe is made of a glass steel pipe, reducing the overall weight of the pipeline while forming a composite structure with the intermediate reinforcing layer, giving full play to the respective advantages of high-strength fibers and fiberglass, enhancing the overall performance, facilitating transportation and installation, and improving work efficiency; the spiral flow guiding grooves on the inner wall of the pipeline and the anti-corrosion coating on the outer side further optimize the performance of the pipeline, improving the transportation efficiency and safety of the pipeline.

[0012] The spiral arrangement of the flow guiding grooves of the lightweight and wear-resistant non-metallic pipeline of the present utility model is in a right-handed manner, so that during the transportation of the slurry, due to the pressure applied by the filling pump, the slurry advances in a spiral manner, preventing the slurry from settling and blocking the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of the lightweight and wear-resistant non-metallic pipeline of the present utility model.

[0014] In the figure: 1. Inner layer pipe, 101. Ultra-high molecular weight polyethylene inner wall, 102. Flow guiding groove, 103. Cushion layer, 2. Intermediate reinforcing layer, 201. High-strength fiber bundle, 3. Outer layer pipe, 301. Glass steel pipe, 302. Wear-resistant and corrosion-resistant coating. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The present utility model will be described in detail below in conjunction with the drawings and specific embodiments.

[0016] The present utility model provides a lightweight and wear-resistant non-metallic pipeline, as Figure 1 shown. The pipeline includes an inner layer pipe 1, an intermediate reinforcing layer 2, and an outer layer pipe 3. The inner layer pipe 1 is composed of an ultra-high molecular weight polyethylene inner wall 101 and a cushion layer 103. The cushion layer 103 wraps the ultra-high molecular weight polyethylene inner wall 101, and flow guiding grooves 102 are provided on the ultra-high molecular weight polyethylene inner wall 101; the intermediate reinforcing layer 2 is located between the inner layer pipe 1 and the outer layer pipe 3 and is woven from high-strength fiber bundles 201; the outer layer pipe 3 is outside the intermediate reinforcing layer 2 and is composed of a glass steel pipe 301 and a wear-resistant and corrosion-resistant coating 302. The three-layer materials forming the pipeline are bonded under high pressure.

[0017] On the inner wall of the inner layer pipe 1, spiral flow guiding grooves 102 are provided. Each pipe is provided with 3 flow guiding grooves 102. The opening angle of the flow guiding grooves 102 is 120°, and it is set in a right-handed manner. The width and depth of the flow guiding grooves 102 are both 5 - 10 mm. Using a special rolling tool, pressure is gradually applied on the surface of the ultra-high molecular weight polyethylene to form the flow guiding grooves 102. The inner wall 101 of the ultra-high molecular weight polyethylene is wrapped by a cushion layer made of rubber. The rubber is made into a casing matching the size of the ultra-high molecular weight polyethylene by the heat shrinkage method, and then it is heated to shrink and tightly wrap around the outer side of the inner wall of the ultra-high molecular weight polyethylene.

[0018] The middle reinforcing layer 2 is composed of high-strength fiber bundles 201. The middle reinforcing layer 2 is on the outer side of the inner layer pipe 1, and it is tightly combined with the material of the inner layer pipe 1 by the prepreg wrapping method. First, the high-strength fiber bundles 201 are impregnated with adhesives such as resin to make prepregs, and then they are cut into appropriate shapes and tightly wrapped around the outside of the inner layer pipe 1.

[0019] The outer layer pipe 3 is composed of a glass fiber pipe 301 and a wear-resistant and corrosion-resistant coating 302. The outer layer pipe 3 is on the outer side of the middle reinforcing layer 2. The adhesive method is used to evenly apply an adhesive on the inner side of the glass fiber pipe 301 and the outer side of the middle reinforcing layer 2, and the middle reinforcing layer 2 is slowly inserted into the glass fiber pipe 301 until it is tightly combined with it. There is a wear-resistant and corrosion-resistant coating 302 on the outer side of the glass fiber pipe 301. The powder spraying method is used, and under the action of static electricity, the corrosion-resistant material is adsorbed on the surface of the glass fiber pipe, and then it is heated and cured to form a coating.

[0020] The following will describe the present utility model in detail with reference to the drawings and embodiments.

[0021] Embodiment 1

[0022] A lightweight and wear-resistant non-metallic pipe, such as Figure 1 shown, includes an inner layer pipe 1, a middle reinforcing layer 2, and an outer layer pipe 3. The inner layer pipe 1, the middle reinforcing layer 2, and the outer layer pipe 3 that form the pipe are formed by high-pressure bonding; the inner layer pipe 1 is composed of an ultra-high molecular weight polyethylene inner wall 101 and a cushion layer 103. The cushion layer 103 wraps the ultra-high molecular weight polyethylene inner wall 101. There are 3 spiral flow guiding grooves 102 provided on the inner wall of the ultra-high molecular weight polyethylene inner wall 101. The width and depth of the flow guiding grooves 102 are both 7 mm; the middle reinforcing layer 2 is between the inner layer pipe 1 and the outer layer pipe 3 and is woven by high-strength fiber bundles 201; the outer layer pipe 3 is composed of a glass fiber pipe 301 and a wear-resistant and corrosion-resistant coating 302.

[0023] Embodiment 2

[0024] Lightweight and wear-resistant non-metallic pipeline, including an inner layer pipe 1, an intermediate reinforcement layer 2 and an outer layer pipe 3. The inner layer pipe 1, the intermediate reinforcement layer 2 and the outer layer pipe 3 that constitute the pipeline are formed by high-pressure bonding. The inner layer pipe 1 is composed of a ultra-high molecular weight polyethylene inner wall 101 and a cushion layer 103. The cushion layer 103 wraps the ultra-high molecular weight polyethylene inner wall 101. There are 3 spiral flow guiding grooves 102 arranged on the inner wall of the ultra-high molecular weight polyethylene inner wall 101. The opening angle of the flow guiding groove 102 is 120°. The width and depth of the flow guiding groove 102 are both 5 mm. The intermediate reinforcement layer 2 is located between the inner layer pipe 1 and the outer layer pipe 3 and is woven by high-strength fiber bundles 201. The outer layer pipe 3 is composed of a glass steel pipe 301 and a wear-resistant and corrosion-resistant coating 302.

[0025] Example 3

[0026] Lightweight and wear-resistant non-metallic pipeline, including an inner layer pipe 1, an intermediate reinforcement layer 2 and an outer layer pipe 3. The inner layer pipe 1, the intermediate reinforcement layer 2 and the outer layer pipe 3 that constitute the pipeline are formed by high-pressure bonding. The inner layer pipe 1 is composed of a ultra-high molecular weight polyethylene inner wall 101 and a cushion layer 103. The cushion layer 103 wraps the ultra-high molecular weight polyethylene inner wall 101. There are 3 spiral flow guiding grooves 102 arranged on the inner wall of the ultra-high molecular weight polyethylene inner wall 101. The opening angle of the flow guiding groove 102 is 120°. The width and depth of the flow guiding groove 102 are both 10 mm. The spiral setting of the flow guiding groove 102 is in the right-handed manner. The intermediate reinforcement layer 2 is located between the inner layer pipe 1 and the outer layer pipe 3 and is woven by high-strength fiber bundles 201. The outer layer pipe 3 is composed of a glass steel pipe 301 and a wear-resistant and corrosion-resistant coating 302.

[0027] Apply the pipeline of this Example 3 to a certain mine in northern Shaanxi. The production capacity of this mine is 1.50 Mt / a. It adopts a production mode of one shaft and one face. During the normal production of the mine, the amount of ground-washed gangue is about 350,000 t / a. The method of gangue slurry filling is adopted. Through the pre-buried grouting pipeline, low-position grouting is carried out on the goaf behind the working face to improve the utilization rate of the abandoned space in the goaf and maximize the treatment of solid waste resources. According to the gangue output of the mine and the layout method of the working face, the filling system capacity is finally determined to be 65 m 3 / h. Design and prepare a mine filling pipeline with an inner diameter of 113 mm and a length of 10 m. The inner layer pipe is made of ultra-high molecular weight polyethylene wear-resistant material with a thickness of 5 mm. The cushion layer on the outer side of the inner wall is made of rubber with a thickness of 15 mm. The intermediate reinforcement layer is woven by high-strength fibers with a thickness of 13 mm. The outer layer pipe is made of glass steel pipe with a thickness of 5 mm. There are spiral flow guiding grooves arranged on the inner wall of the inner layer pipe, the groove depth is 10 mm, the width is 10 mm, and 3 flow guiding grooves are arranged in each cross section, mutually forming 120°. An epoxy anti-corrosion coating with a thickness of 2 mm is coated on the surface of the outer layer pipe.

[0028] The prepared pipeline is used for mine filling operations. After a period of operation, no obvious wear and leakage phenomena have occurred in the pipeline, and the transportation and installation processes are also very convenient, effectively improving the efficiency and safety of the filling operations.

[0029] The lightweight and wear-resistant non-metallic pipeline of the present utility model adopts an inner layer pipe made of ultra-high molecular weight polyethylene wear-resistant material, effectively improving the wear resistance and corrosion resistance of the pipeline and extending the service life of the pipeline; the middle strengthening layer enhances the strength and compressive capacity of the pipeline; the outer layer pipe is made of a glass fiber reinforced plastic pipe, reducing the overall weight of the pipeline, facilitating transportation and installation, and improving work efficiency; the setting of the spiral flow guiding grooves on the inner wall of the pipeline and the anti-corrosion coating on the outer side further optimizes the performance of the pipeline and improves the efficiency and safety of the filling operations.

Claims

1. Lightweight and wear-resistant non-metallic pipe, characterized by: The pipeline comprises an inner layer pipe (1), an intermediate reinforcement layer (2) and an outer layer pipe (3); the inner layer pipe (1) is arranged on the inner wall of the pipeline and is composed of an ultra-high molecular weight polyethylene inner wall (101) and a cushion layer (103); the cushion layer (103) wraps the ultra-high molecular weight polyethylene inner wall (101); a guide groove (102) is arranged on the ultra-high molecular weight polyethylene inner wall (101); the intermediate reinforcement layer (2) is located between the inner layer pipe (1) and the outer layer pipe (3) and is woven from high-strength fiber bundles (201); and the outer layer pipe (3) is composed of a glass fiber reinforced plastic pipe (301) and a wear-resistant and corrosion-resistant coating (302).

2. The lightweight and wear-resistant non-metallic pipe according to claim 1 is characterized in that: The inner layer pipe (1), the middle reinforcement layer (2) and the outer layer pipe (3) constituting the pipeline are formed by high-pressure bonding.

3. The lightweight and wear-resistant non-metallic pipe according to claim 1 is characterized in that: Three spiral guide grooves (102) are arranged on the inner wall (101) of the ultra-high molecular weight polyethylene.

4. The lightweight and wear-resistant non-metallic pipe according to claim 3 is characterized in that: The opening angle of the guide groove (102) is 120°, and the width and depth of the guide groove (102) are both 5-10 mm.

5. The lightweight and wear-resistant non-metallic pipe according to claim 3 is characterized in that: The spiral of the guide groove (102) is arranged in a right-handed manner.

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