High performance mining pipe and method of making same

Abstract

The application provides a high-performance mining pipe and a preparation method thereof, and relates to the technical field of pipes.The high-performance mining pipe comprises a five-layer structure, and the layers from outside to inside are an antistatic and flame-retardant outer layer, an adhesive resin layer, a reinforced intermediate layer, an adhesive resin layer and an antistatic and flame-retardant inner layer.The reinforced intermediate layer comprises ABS, CPE, EVA, nano calcium carbonate, ACR, an emulsifier, 1,4-butanediol diacrylate, a persulfate, a flame retardant, basalt and stearic acid.The antistatic and flame-retardant inner and outer layers comprise PE resin, phosphorus gypsum, a flame retardant, an antistatic agent, a POE modifier, EVA and an aluminum-titanium composite coupling agent in terms of weight fractions.The pipe has good mechanical properties, antistatic properties and flame-retardant properties.

Description

Technical Field

[0001] This invention relates to the field of pipe technology, and more specifically, to a high-performance mining pipe and its preparation method. Background Technology

[0002] With the rapid development of the national economy, coal mining has increased rapidly, and coal mine safety issues have become increasingly prominent. Among these issues, the selection of mining pipes has become a top priority in coal mine safety work, thereby driving the demand for mining pipes in coal mines.

[0003] Due to their heavy weight, poor corrosion resistance, and inconvenient installation and transportation, steel pipes used in underground mines have been gradually replaced by plastic pipes. PE pipes, with their advantages of good impact resistance, wear resistance, corrosion resistance, and long service life, are gradually gaining popularity.

[0004] However, PE pipes also have drawbacks such as being prone to static electricity, flammability, and low rigidity, which cannot meet the requirements for pipes in underground mines. Therefore, developing a PE pipe with good antistatic and flame-retardant properties has become an urgent task for mining pipes. Since PE material itself does not have antistatic and flame-retardant properties, it is necessary to modify it by adding a large amount of flame-retardant and antistatic materials to meet the requirements. This significantly reduces the impact resistance and hydraulic pressure resistance of PE pipes. For long-distance and deep mines, the pipe wall thickness needs to be very thick to improve the hydraulic pressure requirements, which increases costs and is not conducive to low carbon and energy conservation. Summary of the Invention

[0005] The purpose of this invention is to provide a high-performance mining pipe that has good mechanical properties, antistatic properties and flame retardant properties.

[0006] Another objective of this invention is to provide a method for preparing high-performance mining pipes, which is simple to operate, easy to manufacture, and conducive to the large-scale production of pipes.

[0007] The embodiments of the present invention are achieved through the following technical solutions:

[0008] This invention proposes a high-performance mining pipe, comprising a five-layer structure, consisting of an anti-static and flame-retardant outer layer, an adhesive resin layer, a reinforcing intermediate layer, an adhesive resin layer, and an anti-static and flame-retardant inner layer, from the outside to the inside.

[0009] The reinforcing intermediate layer, by weight, comprises: 80-120 parts ABS, 1-15 parts CPE, 1-15 parts EVA, 5-20 parts nano-calcium carbonate, 40-60 parts ACR, 0.1-1.8 parts emulsifier, 0.2-3 parts 1,4-butanediol diacrylate, 1-5 parts persulfate, 5-30 parts flame retardant, 1-25 parts basalt, and 0.1-1 parts stearic acid;

[0010] The antistatic and flame-retardant inner / outer layers, by weight, consist of: 100-150 parts PE resin, 5-50 parts phosphogypsum, 5-30 parts flame retardant, 5-30 parts antistatic agent, 1-15 parts POE modifier, 1-15 parts EVA, and 0.5-5 parts aluminum-titanium composite coupling agent.

[0011] This invention proposes a method for preparing high-performance mining pipes, comprising the following steps:

[0012] Preparation of antistatic and flame-retardant inner / outer layers: Weigh according to the formula, stir and mix the raw materials, extrude and granulate at 160-220℃, and cool for later use;

[0013] Preparation of the reinforced intermediate layer: Mix nano-calcium carbonate and water, add emulsifier, and stir to obtain nano-calcium carbonate solution;

[0014] ACR and water were mixed, and emulsifier and 1,4-butanediol diacrylate were added. The mixture was stirred to obtain a pre-emulsion. The pre-emulsion was heated to 80-90℃, persulfate was added, and the reaction was carried out for 20-30 minutes. Nano-calcium carbonate was added and stirred and dispersed for 40-50 minutes. After freezing, washing, filtration and drying, nano-calcium carbonate composite particles were obtained.

[0015] Nano-calcium carbonate composite particles are combined with other...

[0016] The raw materials are stirred and mixed, extruded and granulated at 150-225℃, and then cooled for later use.

[0017] The antistatic and flame-retardant inner / outer layer, the reinforcing intermediate layer, and the adhesive resin layer are extruded into a pipe, which is then shaped, cooled, drawn, and cut to obtain the finished product.

[0018] The technical solutions of the embodiments of the present invention have at least the following advantages and beneficial effects:

[0019] In this invention, flame retardants and antistatic agents are used in combination to give the inner and outer layers of the pipe good flame retardant and antistatic properties. Phosphogypsum has a certain auxiliary flame retardant effect and can also reduce costs. Through modification and coupling, the functional groups on the surface of phosphogypsum can be increased. The functional groups on the surface of phosphogypsum can form a coupling effect with the polymer resin, improving the compatibility and physical entanglement between phosphogypsum and polymer resin, thereby improving the performance of the pipe. EVA has good compatibility with PE resin. When flame retardants and antistatic agents are added to PE resin, it can achieve good compatibility and impact resistance, further improving the performance of the pipe.

[0020] Basalt, used as a filler, modifies ABS to improve the rigidity and pressure resistance of pipes. Stearic acid activates basalt and improves melt flow, allowing it to better fill ABS and significantly enhance pipe toughness. Melt blending CPE and ABS improves the flame retardant and aging resistance of ABS. EVA, as an impact modifier, when melt-blended with CPE and ABS, causes CPE to precipitate from ABS due to its solubility exceeding saturation, forming a microphase separation structure resembling a sea of ​​CPE and islands of ABS. This significantly increases the impact strength of the pipe. Simultaneously, CPE forms a network in the formulation, allowing basalt to fill and adhere to this network, thus playing an impact modification role and effectively improving the impact resistance of the pipe. EVA exhibits good compatibility when added to ABS resin along with basalt and flame retardants, and it also improves the compatibility between CPE and ABS. The synergistic effect of these two components further enhances pipe performance. Under the action of additives, ACR and nano-calcium carbonate form a core-shell structure of ACR-coated nano-calcium carbonate, which enables the nano-calcium carbonate composite microparticles to have the dual synergistic toughening effect of inorganic nanoparticles and elastomers. Furthermore, the polymer molecular chains on its surface play a block compatibilizing role with the ABS matrix resin, and together with the filling modification of basalt, it further improves the impact resistance of the pipe body.

[0021] By combining an antistatic and flame-retardant outer layer, an adhesive resin layer, a reinforcing intermediate layer, another adhesive resin layer, and an antistatic and flame-retardant inner layer, the resulting pipe exhibits 50% better hydraulic resistance, 100% higher tensile strength, 30% higher impact strength, and a 20°C higher overall heat distortion temperature compared to existing pipes of the same wall thickness. This is primarily due to the high strength, good heat resistance, and excellent burst resistance of the modified polyethylene composite engineering plastic ABS. Traditional PE pipes, while achieving antistatic and flame-retardant properties, have seen their tensile strength reduced from 24.5-25 MPa to around 10 MPa, while engineering plastics themselves have a tensile strength of approximately 50 MPa. The modification further enhances both tensile strength and pressure resistance. Using the adhesive resin as a hot melt glue ensures compatibility across the five layers, resulting in a more harmonious overall pipe performance. The pipe exhibits excellent synergy between antistatic and flame-retardant properties and possesses superior physical and mechanical properties, making it suitable for water supply and drainage, ventilation, and gas extraction in coal mines. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments, but the embodiments do not limit the present invention in any way. Unless otherwise stated, the raw materials and reagents used in the embodiments of the present invention are conventionally purchased raw materials and reagents.

[0023] A high-performance mining pipe includes a five-layer structure, consisting of an anti-static and flame-retardant outer layer, an adhesive resin layer, a reinforcing intermediate layer, an adhesive resin layer, and an anti-static and flame-retardant inner layer, from the outside to the inside.

[0024] The reinforcing intermediate layer, by weight, comprises: 80-120 parts ABS, 1-15 parts CPE, 1-15 parts EVA, 5-20 parts nano-calcium carbonate, 40-60 parts ACR, 0.1-1.8 parts emulsifier, 0.2-3 parts 1,4-butanediol diacrylate, 1-5 parts persulfate, 5-30 parts flame retardant, 1-25 parts basalt, and 0.1-1 parts stearic acid;

[0025] The antistatic and flame-retardant inner / outer layers, by weight, consist of: 100-150 parts PE resin, 5-50 parts phosphogypsum, 5-30 parts flame retardant, 5-30 parts antistatic agent, 1-15 parts POE modifier, 1-15 parts EVA, and 0.5-5 parts aluminum-titanium composite coupling agent.

[0026] ABS plastic is a terpolymer of acrylonitrile, butadiene, and styrene. It is chemically resistant, heat-resistant, has a certain surface hardness, high elasticity and toughness, and good impact strength. CPE (chlorinated polyethylene) is a saturated polymer material with excellent weather resistance, aging resistance, flame retardancy, and toughness, and good compatibility with other polymer materials. EVA (ethylene-vinyl acetate copolymer) is a general-purpose polymer with good corrosion resistance, elasticity, and flexibility, and high tolerance to fillers. PE resin is high-density polyethylene, preferably polyethylene grade 100.

[0027] Furthermore, the flame retardant is one or more of red phosphorus, zinc borate, aluminum oxide, aluminum hydroxide, magnesium hydroxide, and ammonium octamolate. Red phosphorus is an inorganic, halogen-free flame retardant with excellent thermal stability, non-volatile properties, no corrosive gases, good flame retardant effect, and excellent electrical insulation. Zinc borate is an environmentally friendly, non-halogenated flame retardant that is non-toxic, has low water solubility, high thermal stability, small particle size, low specific gravity, and good dispersibility. Aluminum oxide, aluminum hydroxide, and magnesium hydroxide are all inorganic flame retardants with highly efficient flame retardant effects, excellent thermal stability, weather resistance, and environmental friendliness. Ammonium octamolate has a certain porosity and specific surface area, which can physically adsorb smoke and inhibit its spread. When it decomposes, it releases a certain amount of decomposition gas, which can chemically react with oxygen, water vapor and other substances in the smoke to inhibit smoke. It can form a certain physical barrier layer at the origin of combustion to prevent the spread of smoke. Its decomposition products can act as a free radical scavenger, absorbing the activity of free radicals and thus breaking the combustion reaction chain. Through the combined effect of multiple factors, it achieves a good flame retardant effect.

[0028] Furthermore, the antistatic agent is one or more of conductive graphene, conductive carbon black, iron powder, copper powder, and aluminum powder. Conductive graphene has good conductivity, is lightweight, has good breathability and comfort, can firmly bond with the substrate material, is not easy to fall off, and has strong plasticity. Conductive carbon black has stable conductivity and better filler effect. Iron powder, copper powder, and aluminum powder have durable antistatic properties.

[0029] Furthermore, the basalt is ultrafine active basalt, with a particle size of 1000-1500 mesh. Using ultrafine active basalt improves the toughness, dispersion, and compatibility of the pipe material.

[0030] Furthermore, the adhesive resin layer is a maleic anhydride graft copolymer, which is a maleic anhydride-grafted modified polyethylene resin and a maleic anhydride-grafted ethylene-vinyl acetate copolymer. Both are high-viscosity resin adhesives, which can improve the compatibility between the layer structures and enhance the overall performance of the pipe.

[0031] This invention proposes a method for preparing high-performance mining pipes, comprising the following steps:

[0032] Preparation of antistatic and flame-retardant inner / outer layers: Weigh according to the formula, stir and mix the raw materials, extrude and granulate at 160-220℃, and cool for later use;

[0033] Preparation of the reinforced intermediate layer: Mix nano-calcium carbonate and water, add emulsifier, and stir to obtain nano-calcium carbonate solution;

[0034] ACR and water were mixed, and emulsifier and 1,4-butanediol diacrylate were added. The mixture was stirred to obtain a pre-emulsion. The pre-emulsion was heated to 80-90℃, persulfate was added, and the reaction was carried out for 20-30 minutes. Nano-calcium carbonate was added and stirred and dispersed for 40-50 minutes. After freezing, washing, filtration and drying, nano-calcium carbonate composite particles were obtained.

[0035] The nano-calcium carbonate composite microparticles are mixed with other raw materials, extruded and granulated at 150-225℃, and then cooled for later use.

[0036] Pipe preparation: The processing temperature is 140-235℃. The antistatic and flame-retardant inner / outer layer, the reinforcing intermediate layer and the adhesive resin layer are extruded into the pipe. After shaping, cooling, traction and cutting, the finished product is obtained.

[0037] The features and performance of the present invention will be further described in detail below with reference to embodiments.

[0038] Example 1

[0039] A method for preparing a high-performance mining pipe includes the following steps:

[0040] Among them, dn160x14.6mm;

[0041] Preparation of antistatic and flame-retardant inner / outer layers:

[0042] 100g PE resin, 15g phosphogypsum, 5g red phosphorus, 15g ammonium octamolate, 5g copper powder, 15g conductive graphene, 5g POE modifier, 10g EVA, and 1.0g aluminum-titanium composite coupling agent. Weigh according to the formula, stir for 10 minutes until uniform, control the granulation temperature at 200℃, extrude uniformly into granules, and cool for later use.

[0043] Preparation of reinforced intermediate layer:

[0044] ABS 100g, CPE 15g, EVA 5g, aluminum oxide 10g, magnesium hydroxide 15g, basalt 10g, stearic acid 0.3g, nano calcium carbonate 15g, ACR 40g, emulsifier 1.2g, 1,4-butanediol diacrylate 0.8g, persulfate 2g;

[0045] Mix nano-calcium carbonate with water, add 0.4g of emulsifier, and stir to obtain a nano-calcium carbonate solution;

[0046] ACR and water were mixed, and 0.8g of emulsifier and 1,4-butanediol diacrylate were added. The mixture was stirred to obtain a pre-emulsion. The pre-emulsion was heated to 90℃, persulfate was added, and the reaction was carried out for 30 min. Nano-calcium carbonate was added, and the mixture was stirred and dispersed for 50 min. After freezing, washing, filtration, and drying, nano-calcium carbonate composite microparticles were obtained.

[0047] Mix the nano-calcium carbonate composite microparticles with other raw materials, stir for 15 minutes, stir at 85°C, cool to 30°C and granulate, control the granulation temperature at 190°C, and set the granulated material aside after cooling.

[0048] Pipe preparation: Extruding pipes consisting of antistatic and flame-retardant inner / outer layers, a reinforcing intermediate layer, and an adhesive resin layer, followed by shaping, cooling, traction, and cutting to obtain the finished product.

[0049] Temperature control during pipe manufacturing:

[0050] (1) Outer extruder, barrel zone 1 140℃, zone 2 165℃, zone 3 185℃, zone 4 195℃, zone 5 210℃, connector 200℃;

[0051] (2) Mold zone 1: 185℃, zone 2: 190℃, zone 3: 200℃, die: 220℃.

[0052] Example 2

[0053] A method for preparing a high-performance mining pipe includes the following steps:

[0054] Among them, dn110x10mm;

[0055] Preparation of antistatic and flame-retardant inner / outer layers:

[0056] 100g PE resin, 16g phosphogypsum, 5g zinc borate, 16g ammonium octamolate, 8g copper powder, 15g conductive graphene, 5g POE modifier, 8g EVA, and 1.1g aluminum-titanium composite coupling agent. Weigh according to the formula, stir for 10 minutes until uniform, control the granulation temperature at 200℃, extrude uniformly into granules, and cool for later use.

[0057] Preparation of reinforced intermediate layer:

[0058] ABS 100g, CPE 14g, EVA 5g, red phosphorus 10g, magnesium hydroxide 15g, basalt 10g, stearic acid 0.3g, nano calcium carbonate 20g, ACR 45g, emulsifier 1.8g, 1,4-butanediol diacrylate 1.2g, persulfate 3g;

[0059] Mix nano-calcium carbonate with water, add 0.7g of emulsifier, and stir to obtain a nano-calcium carbonate solution;

[0060] ACR and water were mixed, and 1.1g of emulsifier and 1,4-butanediol diacrylate were added. The mixture was stirred to obtain a pre-emulsion. The pre-emulsion was heated to 85℃, persulfate was added, and the reaction was carried out for 25 min. Nano-calcium carbonate was added, and the mixture was stirred and dispersed for 45 min. After freezing, washing, filtration, and drying, nano-calcium carbonate composite microparticles were obtained.

[0061] Mix the nano-calcium carbonate composite microparticles with other raw materials, stir for 15 minutes, stir at 85°C, cool to 30°C and granulate, control the granulation temperature at 190°C, and set the granulated material aside after cooling.

[0062] Pipe preparation: The pipe is extruded with antistatic and flame-retardant inner and outer layers, a reinforcing intermediate layer, and an adhesive resin layer. The finished product is obtained through shaping, cooling, traction, and cutting.

[0063] Temperature control during pipe manufacturing:

[0064] (1) Outer extruder, barrel zone 1 140℃, zone 2 165℃, zone 3 185℃, zone 4 195℃, zone 5 215℃, connector 200℃;

[0065] (2) Mold zone 1: 185℃, zone 2: 190℃, zone 3: 200℃, die opening: 223℃.

[0066] Example 3

[0067] A method for preparing a high-performance mining pipe includes the following steps:

[0068] Among them, dn200x18.2mm

[0069] Preparation of antistatic and flame-retardant inner / outer layers:

[0070] 100g PE resin, 12g phosphogypsum, 8g red phosphorus, 10g ammonium octamolate, 10g aluminum powder, 15g iron powder, 5g POE modifier, 10g EVA, and 1.0g aluminum-titanium composite coupling agent. Weigh according to the formula, stir for 10 minutes until uniform, control the granulation temperature at 200℃, extrude uniformly into granules, and cool for later use.

[0071] Preparation of reinforced intermediate layer:

[0072] ABS 100g, CPE 15g, EVA 5g, ammonium octamolate 10g, magnesium hydroxide 3g, basalt 16g, stearic acid 0.6g, nano calcium carbonate 10g, ACR 50g, emulsifier 1.5g, 1,4-butanediol diacrylate 0.9g, persulfate 1.5g;

[0073] Mix nano-calcium carbonate with water, add 0.5g of emulsifier, and stir to obtain a nano-calcium carbonate solution;

[0074] ACR and water were mixed, 1g of emulsifier and 1,4-butanediol diacrylate were added, and the mixture was stirred to obtain a pre-emulsion. The pre-emulsion was heated to 82℃, persulfate was added, and the reaction was carried out for 24 min. Nano-calcium carbonate was added, and the mixture was stirred and dispersed for 44 min. After freezing, washing, filtration and drying, nano-calcium carbonate composite particles were obtained.

[0075] Mix the nano-calcium carbonate composite microparticles with other raw materials, stir for 15 minutes, stir at 85°C, cool to 30°C and granulate, control the granulation temperature at 190°C, and set the granulated material aside after cooling.

[0076] Pipe preparation: The pipe is extruded with antistatic and flame-retardant inner and outer layers, a reinforcing intermediate layer, and an adhesive resin layer. The finished product is obtained through shaping, cooling, traction, and cutting.

[0077] Temperature control during pipe manufacturing:

[0078] (1) Outer extruder, barrel zone 1 140℃, zone 2 165℃, zone 3 185℃, zone 4 195℃, zone 5 210℃, connector 200℃;

[0079] (2) Mold zone 1 185℃, zone 2 185℃, zone 3 190℃, die 215℃.

[0080] Comparative Example 1

[0081] The difference between this comparative example and Example 1 is that no ABS is added.

[0082] Comparative Example 2

[0083] The difference between this comparative example and Example 1 is that CPE is not added.

[0084] Comparative Example 3

[0085] The difference between this comparative example and Example 1 is that no EVA is added to the reinforced intermediate layer.

[0086] Comparative Example 4

[0087] The difference between this comparative example and Example 1 is that stearic acid is not added.

[0088] Comparative Example 5

[0089] The difference between this comparative example and Example 1 is that no nano-calcium carbonate was added.

[0090] Test results

[0091] The following are the test results of relevant performance indicators of the pipe in Example 1:

[0092] Table 1 Combustion performance of alcohol torches

[0093]

[0094] Table 2 Electrical conductivity

[0095] Inner surface resistance value ≤1.0×106 5.4×104 External surface resistance value ≤1.0×106 5.4×104

[0096] Table 3 Physical and Mechanical Properties

[0097] Flattening test No cracks or damage No cracks or damage Tensile strength (MPa) ≥9.0 18.0 Drop hammer impact (3kg, 2m) 9 / 10 10 / 10 Hydraulic (100h) No leakage or damage No leakage or damage

[0098] The standard values ​​in the above tests were tested according to standard MT558.1-2005, and the actual values ​​were the average of 5 tests. The pipe specification was DN160. Through pipe modification and multi-layer composite, the overall impact resistance of the pipe was greatly improved.

[0099] The physical and mechanical properties of the pipes in comparison samples 1-5 were tested, and the results are as follows:

[0100] Table 4 Physical and Mechanical Properties of Pipes

[0101] Example 1 No cracks or damage 18.0 10 / 10 No leakage or damage Comparative Example 1 There are a few cracks 9.0 9 / 10 There is a slight leak. Comparative Example 2 There are a few cracks 10.0 9 / 10 There is a slight leak. Comparative Example 3 There are a few cracks 9.0 9 / 10 There is a slight leak. Comparative Example 4 Almost no cracks 12.0 10 / 10 Almost no penetration Comparative Example 5 There are a few cracks 13.0 9 / 10 Almost no penetration

[0102] As shown in Table 4, the pipe of Example 1 has good physical and mechanical properties. This indicates that the formulation of the reinforcing intermediate layer in Example 1 can effectively improve the mechanical properties of the pipe.

[0103] In summary, the high-performance mining pipe of the present invention has good mechanical properties, antistatic properties, and flame retardant properties.

[0104] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A high-performance mining pipe, characterized in that: The high-performance mining pipe consists of a five-layer structure, from the outside to the inside: an anti-static and flame-retardant outer layer, an adhesive resin layer, a reinforcing middle layer, an adhesive resin layer, and an anti-static and flame-retardant inner layer. The reinforcing intermediate layer is composed of the following raw materials in parts by weight: 80-120 parts ABS, 1-15 parts CPE, 1-15 parts EVA, 5-20 parts nano-calcium carbonate, 40-60 parts ACR, 0.1-1.8 parts emulsifier, 0.2-3 parts 1,4-butanediol diacrylate, 1-5 parts persulfate, 5-30 parts flame retardant, 1-25 parts basalt, and 0.1-1 part stearic acid; The antistatic and flame-retardant inner / outer layers are composed of the following raw materials in parts by weight: 100-150 parts PE resin, 5-50 parts phosphogypsum, 5-30 parts flame retardant, 5-30 parts antistatic agent, 1-15 parts POE modifier, 1-15 parts EVA and 0.5-5 parts aluminum-titanium composite coupling agent. The method for preparing the high-performance mining pipe includes the following steps: Preparation of antistatic and flame-retardant inner / outer layers: Weigh according to the formula, stir and mix the raw materials, extrude and granulate at 160-220℃, and cool for later use; Preparation of the reinforced intermediate layer: Mix nano-calcium carbonate and water, add emulsifier, and stir to obtain nano-calcium carbonate solution; ACR and water were mixed, and emulsifier and 1,4-butanediol diacrylate were added. The mixture was stirred to obtain a pre-emulsion. The pre-emulsion was heated to 80-90℃, persulfate was added, and the reaction was carried out for 20-30 minutes. Nano calcium carbonate solution was added and stirred and dispersed for 40-50 minutes. After freezing, washing, filtration and drying, nano calcium carbonate composite particles were obtained. The nano-calcium carbonate composite microparticles are mixed with other raw materials, extruded and granulated at 150-225℃, and then cooled for later use. Pipe preparation: The antistatic and flame-retardant inner / outer layer, the reinforcing intermediate layer and the adhesive resin layer are extruded into a pipe, which is then shaped, cooled, drawn and cut to obtain the finished product.

2. The high-performance mining pipe according to claim 1, characterized in that: The flame retardant is one or more of red phosphorus, zinc borate, aluminum oxide, aluminum hydroxide, magnesium hydroxide, and ammonium octamolate.

3. The high-performance mining pipe according to claim 1, characterized in that: The antistatic agent is one or more of conductive graphene, conductive carbon black, iron powder, copper powder, and aluminum powder.

4. The high-performance mining pipe according to claim 1, characterized in that: The basalt is an ultrafine active basalt with a particle size of 1000-1500 mesh.

5. The high-performance mining pipe according to claim 1, characterized in that: The adhesive resin layer is a maleic anhydride graft copolymer, which is a maleic anhydride graft-modified polyethylene resin and a maleic anhydride grafted ethylene-vinyl acetate copolymer.

6. The high-performance mining pipe according to claim 1, characterized in that: The processing temperature for preparing the pipe is 140-235℃.

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