A friction mine hoist wire rope lubricating grease composition and a method for preparing the same

Abstract

This invention relates to a friction-type mine hoisting wire rope lubricating grease composition, comprising the following components and their weight percentages: 50-65% base oil, 8-18% friction modifier, 4-12% adhesive, 0-10% plasticizer, 0-10% dropping point improver, 1-3% rust inhibitor, 0-5% extreme pressure anti-wear agent, and 0.5-3% antioxidant. By using linseed oil-modified phenolic resin and bisphenol A propane glycerol resin as friction modifiers, the linseed oil-modified phenolic resin is synthesized by first synthesizing modified phenol from linseed oil and phenol, and then the modified phenol is polymerized with formaldehyde to form phenolic molecules. The flexible alkyl chains connect the rigid phenolic molecular chains, providing internal toughening and effectively preventing slippage of the hoisting wire rope. The addition of the extreme pressure anti-wear agent forms a high-strength lubricating protective film, resisting the contact pressure and deformation between the contacting wires during heavy-load hoisting, providing superior anti-wear and lubrication performance.

Description

Technical Field

[0001] This invention relates to the field of lubricating grease technology, and in particular to a friction-type mine hoisting wire rope lubricating grease composition and its preparation method. Background Technology

[0002] The main reason for the scrapping of mine hoisting wire ropes is broken wires. The "Coal Mine Safety Regulations" stipulate that mine-specific wire ropes must be replaced when the ratio of the cross-sectional area of ​​broken wires to the total cross-sectional area of ​​the wires reaches 10% within one lay length. During mine hoisting, the torsional stress on the wire rope is the primary cause of wire breakage. In addition, the high humidity in the mine shaft causes a water film to form on the surface of the wire rope. This water film dissolves acidic gases in the air, forming an electrolyte solution that reacts chemically on the wire rope surface, creating rust pits. These rust pits become stress concentration points, reducing the wire rope's torsional resistance and further exacerbating wire breakage.

[0003] To prevent wire breakage and corrosion, galvanized steel wire ropes are generally used, and lubricating grease is applied to the core of the galvanized steel wire rope. Steel wire rope lubricating grease is composed of organic thickeners and high-viscosity refined mineral oil, providing lubrication, wear resistance, and corrosion protection. It has strong penetrating and rust-preventing properties, extending the service life of the steel wire rope and is an important auxiliary material in the steel wire rope industry. However, existing mine hoisting steel wire rope lubricating greases do not possess good frictional properties, easily causing slippage between the steel wire rope and the liner during use, or overheating due to poor lubrication, thus creating safety hazards. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this invention is to provide a friction-type mine hoisting wire rope lubricating grease composition and its preparation method, so as to solve one or more problems in the prior art.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] A friction-type mine hoisting wire rope lubricating grease composition comprises the following components and their weight percentages: 50-65% base oil, 8-18% friction modifier, 4-12% adhesive, 0-10% plasticizer, 0-10% dropping point improver, 1-3% rust inhibitor, 0-5% extreme pressure anti-wear agent, and 0.5-3% antioxidant;

[0007] The base oil is a heavy aromatics base oil;

[0008] The friction modifier is one or a mixture of linseed oil-modified phenolic resin and bisphenol A propane glycerol resin;

[0009] The adhesive is one or more of a low-molecular-weight olefin polymer and a polymethacrylate compound;

[0010] The plasticizer is one or a mixture of diisodecyl phthalate and C10 heavy aromatic plasticizer;

[0011] The dropping point improver is one or more of Duroc pine wax and microcrystalline wax with a melting point of not less than 80°C;

[0012] The rust inhibitor is one or a mixture of neutral barium petroleum sulfonate, zinc naphthenate, benzotriazole, and magnesium lanolin soap;

[0013] The extreme pressure anti-wear agent is one or more of sulfurized olefin cottonseed oil and tricresyl phosphate;

[0014] The antioxidant is one or a mixture of primary alcohol zinc thiophosphate T202, alkylated diphenylamine L57 and phenolic antioxidant L135.

[0015] Furthermore, the heavy aromatic base oil is a wax oil with a high content of saturated hydrocarbons and a heavy aromatic base oil containing aromatics, obtained by extracting lubricating oil with solvents such as furfural, phenol or NMP.

[0016] Furthermore, the friction enhancer is composed of linseed oil-modified phenolic resin and bisphenol A propane glycerol resin mixed in a ratio of 1:1 to 1:5, with a content of 8 to 18 parts.

[0017] Furthermore, the adhesive is composed of low molecular weight polyisobutylene with a number average molecular weight of 1,000-10,000 and polymethacrylate with a number average molecular weight of 10,000-40,000 in a ratio of 1:1 to 1:3, with a content of 4 to 12 parts.

[0018] Furthermore, the plasticizer is composed of diisodecyl phthalate and C10 heavy aromatic plasticizer mixed in a ratio of 1:5 to 1:10, with a content of 0.5 to 10 parts;

[0019] The C10 heavy aromatic plasticizer is prepared by distillation of C10 heavy aromatic components, with a distillation range of 220℃-290℃, a closed-cup flash point greater than 90℃, and an aromatic content greater than 98%.

[0020] Furthermore, the dropping point improver is composed of Duroc pine wax and microcrystalline wax with a melting point of not less than 80°C in a ratio of 1:1 to 1:5, with a content of 0.5 to 10 parts.

[0021] Furthermore, the rust inhibitor is composed of neutral barium petroleum sulfonate, zinc naphthenate, benzotriazole and magnesium lanolin soap in a ratio of 1:1:1:1 to 1:1:1:7, with a content of 0.5 to 3 parts.

[0022] Furthermore, the extreme pressure anti-wear agent is composed of sulfurized olefin cottonseed oil and tricresyl phosphate mixed in a ratio of 1:1 to 1:5, with a content of 0.5 to 5 parts.

[0023] Furthermore, the antioxidant is composed of primary alcohol zinc thiophosphate T202, alkylated diphenylamine L57 and phenolic antioxidant L135 in a ratio of 1:1:1 to 1:1:3, with a content of 0.5 to 3 parts.

[0024] A method for preparing a friction-type mine hoisting wire rope lubricating grease composition includes the following steps:

[0025] S1. Prepare all materials required for the lubricating grease of the mine hoisting wire rope according to the specified proportions;

[0026] S2. Add base oil to the reactor, heat to 110-120℃, and dehydrate for 40-120 minutes;

[0027] S3. Add the friction modifier, adhesive, and dropping point improver to the mixing tank, mix and heat to 120-130℃, keep warm and stir for 60-240 minutes until all materials are completely mixed and uniform.

[0028] S4. Slowly cool down to 100℃, add rust inhibitor and plasticizer, mix and stir until uniform, and obtain friction-type mine hoisting wire rope lubricant after sampling and testing.

[0029] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0030] (I) This invention uses linseed oil modified phenolic resin and bisphenol propane glycerol resin as friction modifiers. Linseed oil modified phenolic resin is synthesized by first synthesizing modified phenol from linseed oil and phenol. The modified phenol is then condensed with formaldehyde to form phenolic molecules. The flexible alkyl chains connect the rigid phenolic molecular chains, playing an internal toughening role. Therefore, the friction-type mine hoisting wire rope lubricant of this invention has a high coefficient of friction and can effectively prevent the hoisting wire rope from slipping.

[0031] (ii) By adding extreme pressure anti-wear agent, a high-strength lubricating protective film is formed, which resists the contact pressure and deformation between the steel wires in contact during heavy load lifting, and can provide better anti-wear and lubrication performance; at the same time, the adhesion of grease is further improved after adding adhesive, which can avoid the phenomenon of oil splashing and dripping during high-speed movement of steel wire rope.

[0032] (III) By utilizing the synergistic effect of the compounding of neutral barium petroleum sulfonate, zinc naphthenate, benzotriazole and magnesium lanolin soap, the rust inhibitor forms a physical and chemical adsorption on the surface of the wire rope, forming a dense molecular protective layer on the metal surface, which has a good rust prevention effect on mine hoisting wire ropes.

[0033] (iv) The mine hoisting wire rope lubricant of the present invention is black or brown viscous in appearance, has good coating properties, can be easily brushed on the surface of the wire rope, and plays a good role in lubrication, anti-wear, friction enhancement and rust prevention, and is especially suitable for the protection of mine hoisting wire ropes. Attached Figure Description

[0034] Figure 1 The diagram shows a comparison of the oxidation stability (PDSC) test results of the wire rope lubricants obtained in Examples 1-3 and Comparative Examples 1-4 of the present invention.

[0035] Figure 2 The diagram shows a comparison of the extreme pressure performance (four-ball test) PD / N of the wire rope lubricating greases obtained in Examples 1-3 and Comparative Examples 1-4 of the present invention.

[0036] Figure 3 The diagram shows a comparison of the extreme pressure performance (four-ball machine method) of the wire rope lubricating greases obtained in Examples 1-3 and Comparative Examples 1-4 of the present invention, with wear scar diameter / mm.

[0037] Figure 4 The graph shows a comparison of the friction coefficient (20°C) of the wire rope lubricants obtained in Examples 1-3 and Comparative Examples 1-4 of the present invention.

[0038] Figure 5 The graph shows a comparison of the friction coefficient (30°C) of the wire rope lubricants obtained in Examples 1-3 and Comparative Examples 1-4 of the present invention. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a friction-type mine hoisting wire rope lubricating grease composition and its preparation method. The advantages and features of this invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, used only to facilitate and clearly illustrate the purpose of the embodiments of this invention. Please refer to the accompanying drawings to make the objectives, features, and advantages of this invention more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this invention, should still fall within the scope of the technical content disclosed in this invention.

[0040] A friction-type mine hoisting wire rope lubricating grease composition comprises the following components and their weight percentages: 50-65% base oil, 8-18% friction modifier, 4-12% adhesive, 0-10% plasticizer, 0-10% dropping point improver, 1-3% rust inhibitor, 0-5% extreme pressure anti-wear agent, and 0.5-3% antioxidant;

[0041] The base oil is a heavy aromatics base oil;

[0042] The friction modifier is one or a mixture of linseed oil-modified phenolic resin and bisphenol A propane glycerol resin;

[0043] The adhesive is one or more of a low-molecular-weight olefin polymer and a polymethacrylate compound;

[0044] The plasticizer is one or a mixture of diisodecyl phthalate and C10 heavy aromatic plasticizer;

[0045] The dropping point improver is one or more of Duroc pine wax and microcrystalline wax with a melting point of not less than 80°C;

[0046] The rust inhibitor is one or a mixture of neutral barium petroleum sulfonate, zinc naphthenate, benzotriazole, and magnesium lanolin soap;

[0047] The extreme pressure anti-wear agent is one or more of sulfurized olefin cottonseed oil and tricresyl phosphate;

[0048] The antioxidant is one or a mixture of primary alcohol zinc thiophosphate T202, alkylated diphenylamine L57 and phenolic antioxidant L135.

[0049] Furthermore, the heavy aromatic base oil is a wax oil with a high saturated hydrocarbon content and a heavy aromatic base oil containing aromatics, obtained by extracting lubricating oil with solvents such as furfural, phenol, or NMP. In this invention, a heavy aromatic base oil with an aromatic content greater than 85%, a kinematic viscosity of 35-50 mm² / s at 100°C, and a flash point greater than 250°C is preferred.

[0050] Furthermore, the friction enhancer is composed of linseed oil-modified phenolic resin and bisphenol A propane glycerol resin mixed in a ratio of 1:1 to 1:5, with a content of 8 to 18 parts. In other embodiments of the present invention, the friction enhancer may also be one or more mixtures of tung oil-modified phenolic resin, cashew nut shell oil-modified phenolic resin, tert-butylphenolic resin, and coumarone resin, other than linseed oil-modified phenolic resin and bisphenol A propane glycerol resin.

[0051] Furthermore, the adhesive is composed of low-molecular-weight polyisobutylene with a number average molecular weight of 1000-10000 and polymethacrylate with a number average molecular weight of 10,000-40,000, mixed in a ratio of 1:1 to 1:3, with a content of 4-12 parts. In other embodiments of the present invention, the adhesive may also be one or more of polyethylene, polypropylene, polybutene, polyisobutylene, ethylene propylene diene monomer (EPDM), and polymethacrylate, other than low-molecular-weight polyisobutylene and polymethacrylate.

[0052] Furthermore, the plasticizer is composed of diisodecyl phthalate and C10 heavy aromatic plasticizer mixed in a ratio of 1:5 to 1:10, with a content of 0.5 to 10 parts.

[0053] The C10 heavy aromatic plasticizer is prepared by distillation of C10 heavy aromatic components, with a distillation range of 220℃-290℃, a closed-cup flash point greater than 90℃, and an aromatic content greater than 98%. In other embodiments of the present invention, the plasticizer may also be one or a mixture of dioctyl phthalate, dibutyl phthalate, diheptyl phthalate, and diisooctyl phthalate, other than diisodecyl phthalate and C10 heavy aromatic plasticizer.

[0054] Furthermore, the dropping point improver is composed of Duroc pine wax and microcrystalline wax with a melting point of not less than 80°C in a ratio of 1:1 to 1:5, with a content of 0.5 to 10 parts. In other embodiments of the present invention, the dropping point improver may also be one or more mixtures of polyethylene wax and carnauba wax, other than Duroc pine wax and microcrystalline wax.

[0055] Furthermore, the rust inhibitor is composed of neutral barium petroleum sulfonate, zinc naphthenate, benzotriazole and magnesium lanolin soap in a ratio of 1:1:1:1 to 1:1:1:7, with a content of 0.5 to 3 parts.

[0056] Furthermore, the extreme pressure anti-wear agent is composed of sulfurized olefin cottonseed oil and tricresyl phosphate mixed in a ratio of 1:1 to 1:5, with a content of 0.5 to 5 parts. In other embodiments of the present invention, the extreme pressure anti-wear agent may also be one or more of the following: sulfurized isobutylene, dibutyl phosphite, thiophosphate, phosphate ester, and acidic phosphate amine salt, in addition to sulfurized olefin cottonseed oil and tricresyl phosphate.

[0057] Furthermore, the antioxidant is composed of primary alcohol zinc thiophosphate T202, alkylated diphenylamine L57, and phenolic antioxidant L135 mixed in a ratio of 1:1:1 to 1:1:3, with a content of 0.5 to 3 parts. In other embodiments of the present invention, the antioxidant may also be one or more of dialkyl dithiophosphate zinc and amine antioxidants, other than primary alcohol zinc thiophosphate T202, alkylated diphenylamine L57, and phenolic antioxidant L135.

[0058] A method for preparing a friction-type mine hoisting wire rope lubricating grease composition includes the following steps:

[0059] S1. Prepare all materials required for the lubricating grease of the mine hoisting wire rope according to the specified proportions;

[0060] S2. Add base oil to the reactor, heat to 110-120℃, and dehydrate for 40-120 minutes;

[0061] S3. Add the friction modifier, adhesive, and dropping point improver to the mixing tank, mix and heat to 120-130℃, keep warm and stir for 60-240 minutes until all materials are completely mixed and uniform.

[0062] S4. Slowly cool down to 100℃, add rust inhibitor and plasticizer, mix and stir until uniform, and obtain friction-type mine hoisting wire rope lubricant after sampling and testing.

[0063] Furthermore, the aforementioned grease is applied to the wire rope of the friction-type mine hoist. Specifically, the mine hoist wire rope grease provided by this invention is a paste-like substance that can be directly applied to the surface of the wire rope or diluted with an IP 60 isoalkane solvent at a ratio of 7:3. After dilution, the grease can be sprayed or brushed onto the wire rope, and after air drying, an elastic solid protective layer can be formed on the surface of the wire rope.

[0064] Examples 1-3

[0065] Based on 100% of the lubricating grease for mine hoisting wire ropes, the components and weight percentages are as follows:

[0066]

[0067] Compare with Examples 1-4

[0068] Based on 100% of the lubricating grease for mine hoisting wire ropes, the components and weight percentages are as follows:

[0069]

[0070]

[0071] Among them, Comparative Example 4 is a commercially available German-made wire rope grease.

[0072] Test Example 1

[0073] Basic physicochemical property tests.

[0074] The wire rope greases obtained in Examples 1-3 and Comparative Examples 1-4 were subjected to basic physicochemical property tests according to the evaluation requirements of NB / SH / T6019-2020 "Friction Hoist Wire Rope Lubricating Grease and Maintenance Oil". The results are shown in Tables 1-2 and Appendix 1-2. Figure 1-4 As shown.

[0075] Table 1 compares and contrasts the test data.

[0076]

[0077]

[0078] Table 2 Analysis and Comparison of Test Data (Continued)

[0079]

[0080]

[0081] According to Table 1, Table 2 and Appendix Figure 1-5The data shows that, with the total content of all additives remaining the same, adjusting the proportions of two different friction modifiers, dropping point improvers, rust inhibitors, extreme pressure anti-wear agents, and antioxidants, as shown in Examples 1-3, resulted in excellent performance in terms of friction coefficient, dropping point, rust prevention, extreme pressure anti-wear properties, and oxidation stability, demonstrating considerable performance improvements compared to the commercially available product, Comparative Example 4. Comparing Examples 1-3, it can be observed that, with the same total content of friction modifiers, gradually increasing the content of bisphenol A propane glycerol resin helps to improve the friction coefficient of the wire rope grease. Compared to Comparative Example 1, without the addition of linseed oil-modified phenolic resin, the friction coefficient of the grease is even lower than 0.25, failing to meet the standard requirements. This indicates that after the two are compounded, the flexible alkyl chains of the modified phenol connect the rigid phenolic molecular chains and increase the internal toughening effect. Therefore, the invented wire rope grease has a high friction coefficient and can effectively prevent slippage of the hoist wire rope. With the same total content of dropping point improvers, gradually increasing the content of microcrystalline wax… It helps to improve the dropping point of wire rope grease; when the total content of rust inhibitor is the same, gradually reducing the content of lanolin magnesium soap will gradually decrease the rust prevention performance of the grease. Compared with Comparative Example 2, without the addition of lanolin magnesium soap, the rust prevention performance of the grease in the damp heat test is even greater than level 3; when the total content of extreme pressure anti-wear agent is the same, gradually reducing the content of tricresyl phosphate will gradually improve the extreme pressure anti-wear performance of the grease. However, after the content of sulfurized olefin cottonseed oil is increased, due to competitive adsorption, it can be seen from the comparison of Examples 1-3 and Comparative Examples 2 and 3 that the rust prevention performance of the product will be negatively affected. It is necessary to comprehensively examine the extreme pressure and rust prevention properties of the grease.

[0082] Test case

[0083] Friction coefficient measurement test

[0084] The friction characteristics and friction coefficient stability of different friction-type mine hoist wire rope lubricants were simulated and compared in the laboratory using a pad friction testing machine. Three commonly used friction pads, G30, GM-3, and K25, were used in the laboratory to measure the friction coefficients of the wire rope lubricants obtained in Examples 1-3 and Comparative Examples 1-4 under the same test conditions. During the test, the wire rope was tensioned, a layer of lubricant was applied to its surface, and the pad was clamped to the wire rope, achieving relative linear motion between the wire rope and the pad under a certain contact pressure. Friction was generated between the wire rope and the pad at this time. The friction force and normal pressure between the pad and the wire rope were measured during the test, and the friction coefficient between the pad and the wire rope could be calculated. The test results are shown in Table 3.

[0085] Table 3. Test results of friction coefficient determination for different friction pad materials.

[0086]

[0087] As shown in Table 3, with the same total friction modifier content, gradually reducing the bisphenol A propane glycerol resin content gradually decreases the friction coefficient of the wire rope grease, but it still meets the standard requirements. Compared with Control Example 1, without the addition of linseed oil-modified phenolic resin, the friction coefficient of the grease is even lower than 0.25, failing to meet the standard requirements. Compared with Control Examples 2 and 3, the friction modifier ratios of Examples 2 and 3 are completely consistent with those of Control Examples 2 and 3, meeting the standard requirements. However, compared with Examples 2 and 3, the friction coefficient is significantly lower. This is mainly because the adhesion, rust prevention, and extreme pressure properties of Examples 2 and 3 are significantly higher than those of Control Examples 2 and 3. This indicates that while different molecules compete for adsorption on the surface of the wire rope, the friction modifier molecules can only better exert the friction-enhancing effect of bisphenol A propane glycerol-modified phenolic resin by increasing the internal toughening effect and by using C10 heavy aromatic plasticizer and diisodecyl phthalate in a specific ratio to provide plasticizing properties.

[0088] Test Example 3

[0089] Rust resistance test

[0090] The wire rope greases obtained in Examples 1-3 and Comparative Examples 1-4 were tested for corrosion resistance and rust prevention performance according to GB / T 5018 grease corrosion resistance test method and Emcor dynamic rust prevention test method to determine the rust prevention performance level of the grease. The test results are shown in Table 4 below.

[0091] Table 4 Corrosion and Rust Prevention Tests

[0092] GB / T5018 Corrosion Resistance Emcor Dynamic Rust Prevention Example 1 qualified ≤0 / 0 Example 2 qualified ≤0 / 0 Example 3 qualified ≤0 / 0 Compare with Example 1 Unacceptable (5 corrosion spots) ≤1 / 0 Compare with Example 2 Unacceptable (3 corrosion spots) ≤1 / 1 Compare with Example 3 Unacceptable (1 corrosion spot) ≤1 / 1 Compare with Example 4 qualified ≤1 / 0

[0093] In summary, the friction-type mine hoisting wire rope lubricating grease composition disclosed in this invention uses a combination of linseed oil-modified phenolic resin and bisphenol A propane glycerol resin as friction-enhancing materials, supplemented with diisodecyl phthalate and C10 heavy aromatic hydrocarbon plasticizers. The flexible alkyl chains and plasticizer molecules link the rigid phenolic molecular chains, providing internal toughening and weakening the intermolecular forces between polymer molecular chains, thus increasing the friction coefficient of the lubricating grease and effectively preventing slippage of the hoisting wire rope. The addition of extreme pressure anti-wear agent forms a high-strength lubricating protective film, which can resist the contact pressure and deformation between the contacting wires during heavy-load hoisting, providing superior anti-wear and lubrication performance. Simultaneously, the rust inhibitor forms a dense molecular protective layer on the metal surface through physical and chemical adsorption, providing excellent rust prevention for the mine hoisting wire rope. Therefore, the friction-type mine hoisting wire rope lubricating grease of this invention has excellent lubrication, anti-wear, friction-enhancing, and rust-preventing effects, and is particularly suitable for the protection of mine hoisting wire ropes.

[0094] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0095] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A friction-type mine hoisting wire rope lubricant composition, characterized in that, It consists of the following components and their weight percentages: 50-65% base oil, 8-18% friction modifier, 4-12% adhesion promoter, 6-10% plasticizer, 3-10% dropping point improver, 1-3% rust inhibitor, 4-5% extreme pressure anti-wear agent and 0.5-3% antioxidant. The base oil is a heavy aromatics base oil; The friction modifier is composed of linseed oil-modified phenolic resin and bisphenol A propane glycerol resin mixed in a ratio of 1:1 to 1:5; The adhesive is one or more of a low-molecular-weight olefin polymer and a polymethacrylate compound; The plasticizer is one or a mixture of diisodecyl phthalate and C10 heavy aromatic plasticizer; The dropping point improver is one or more of Duroc pine wax and microcrystalline wax with a melting point of not less than 80°C; The rust inhibitor is composed of neutral barium petroleum sulfonate, zinc naphthenate, benzotriazole and magnesium lanolin soap in a ratio of 1:1:1:1 to 1:1:1:7; The extreme pressure anti-wear agent is composed of sulfurized olefin cottonseed oil and tricresyl phosphate mixed in a ratio of 1:1 to 1:

5. The antioxidant is one or a mixture of primary alcohol zinc thiophosphate T202, alkylated diphenylamine L57 and phenolic antioxidant L135.

2. The friction-type mine hoisting wire rope lubricant composition as described in claim 1, characterized in that: The heavy aromatic base oil is a wax oil with a high content of saturated hydrocarbons and a heavy aromatic base oil containing aromatics, obtained by extracting lubricating oil with furfural, phenol or NMP solvent.

3. The friction-type mine hoisting wire rope lubricant composition as described in claim 1, characterized in that: The adhesive is composed of low molecular weight polyisobutylene with a number average molecular weight of 1,000-10,000 and polymethyl methacrylate with a number average molecular weight of 10,000-40,000 in a ratio of 1:1 to 1:

3.

4. The friction-type mine hoisting wire rope lubricating grease composition as described in claim 1, characterized in that: The plasticizer is composed of diisodecyl phthalate and C10 heavy aromatic plasticizer in a ratio of 1:5 to 1:

10. The C10 heavy aromatic plasticizer is refined by distillation using C10 heavy aromatic components as raw materials. It has a distillation range of 220℃-290℃, a closed-cup flash point greater than 90℃, and an aromatic content greater than 98%.

5. The friction-type mine hoisting wire rope lubricating grease composition as described in claim 1, characterized in that: The dropping point improver is composed of Duroc pine wax and microcrystalline wax with a melting point of not less than 80°C in a ratio of 1:1 to 1:

5.

6. The friction-type mine hoisting wire rope lubricating grease composition as described in claim 1, characterized in that: The antioxidant is composed of primary alcohol zinc thiophosphate T202, alkylated diphenylamine L57 and phenolic antioxidant L135 in a ratio of 1:1:1 to 1:1:

3.

7. A method for preparing a friction-type mine hoisting wire rope lubricating grease composition according to any one of claims 1 to 6, characterized in that: Includes the following steps: S1. Prepare all materials required for the lubricating grease of the mine hoisting wire rope according to the specified proportions; S2. Add base oil to the reactor, heat to 110-120℃, and dehydrate for 40-120 minutes; S3. Add the friction modifier, adhesive, and dropping point improver to the mixing tank, mix and heat to 120-130℃, keep warm and stir for 60-240 minutes until all materials are completely mixed and uniform. S4. Slowly cool down to 100℃, add rust inhibitor, plasticizer, extrusion anti-wear agent and antioxidant, mix and stir until uniform, and obtain friction-type mine hoisting wire rope lubricant after sampling and testing.

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