Water-ethanol type fire resistant hydraulic fluid for hydraulic system of underground coal mine and preparation method of water-ethanol type fire resistant hydraulic fluid

A technology of hydraulic system and hydraulic fluid, applied in the petroleum industry, lubricating composition, etc., can solve the performance water-glycol type viscosity, flame resistance, oil film bearing capacity, anti-rust performance, lubricating performance, viscosity-temperature index It can achieve the effect of good high temperature thermal stability and high pressure mechanical shear stability, ensuring safe production and efficient operation, and good oil film bearing capacity.

Active Publication Date: 2018-01-02
CCTEG CHINA COAL RES INST
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing water-glycol type flame retardant hydraulic fluid cannot meet the performance requirements of coal mine underground hydraulic equipment for flame retardant fluids. Many properties such as water-glycol type viscosity, flame resistance, oil film carrying capacity, rust Performance, lubricity, viscosity-temperature index, etc. are not up to standard, so the existing water-glycol type flame retardant hydraulic fluid cannot be applied to the use of coal mine underground hydraulic equipment

Method used

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  • Water-ethanol type fire resistant hydraulic fluid for hydraulic system of underground coal mine and preparation method of water-ethanol type fire resistant hydraulic fluid

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preparation example Construction

[0038] refer to figure 1 , which shows a flow chart of a method for preparing a water-ethanol type flame retardant hydraulic fluid for a coal mine underground hydraulic system according to an embodiment of the present invention, and the method specifically includes:

[0039] Step 101, mix vegetable oleic acid and triethanolamine in a reaction kettle according to the mass percentage of each raw material component, stir and saponify at 110-130°C for 3-4 hours to obtain oleic acid amide; take boric acid, diethanolamine and triethanolamine according to the mass percentage Mix glycerol in a reaction kettle, stir and react at 130-140°C for 3-4 hours to obtain boric acid ester.

[0040] Step 102, according to the mass percentage of each raw material component, take the remaining reagent deionized water, ethylene glycol, Congo red, the prepared oleic acid amide and boric acid ester, stir and react at 50-60°C for 1-2 hours, and then add Block polyether, stir and react at 50-60°C for 0.5...

Embodiment 1

[0045] According to the mass percentage of each raw material component, take 0.1% vegetable oleic acid and 0.5% triethanolamine and mix them in a reaction kettle, stir and saponify at 110°C for 4 hours to obtain oleic acid amide; take 0.3% boric acid and 0.5% diethanolamine according to the mass percentage Mix it with 1% glycerol in a reaction kettle, stir and react at 130°C for 4 hours to obtain boric acid ester.

[0046] According to the mass percentage of each raw material component, take the remaining reagent deionized water, 40% ethylene glycol, 0.01% Congo red, the prepared oleic acid amide and the prepared boric acid ester, stir and react at 50°C for 2h, and then add 15% block polyether, stirred and reacted at 50°C for 1h, cooled down to 40°C.

[0047] Add 0.5% mercaptobenzothiazole and 0.1% aqueous silicone oil to the cooled mixture, and stir for 30 minutes to obtain the water-ethanol type flame retardant hydraulic fluid.

Embodiment 2

[0049] According to the mass percentage of each raw material component, take 0.2% vegetable oleic acid and 1% triethanolamine and mix them in a reaction kettle, stir and saponify at 130°C for 34 hours to obtain oleic acid amide; take 0.5% boric acid and 0.8% diethanolamine according to the mass percentage Mix it with 1.5% glycerol in a reaction kettle, stir and react at 140°C for 3 hours to obtain boric acid ester.

[0050] According to the mass percentage of each raw material component, take the remaining reagent deionized water, 42% ethylene glycol, 0.02% Congo red, the prepared oleic acid amide and the prepared boric acid ester, stir and react at 60°C for 1h, and then add 17% block polyether, stirred and reacted at 60°C for 0.5h, cooled down to 45°C.

[0051] Add 1% mercaptobenzothiazole and 0.3% aqueous silicone oil to the cooled mixture, and stir for 40 minutes to obtain the water-ethanol type flame retardant hydraulic fluid.

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Abstract

The invention provides a water-ethanol type fire resistant hydraulic fluid for a hydraulic system of an underground coal mine and a preparation method of the water-ethanol type fire resistant hydraulic fluid. The fire resistant hydraulic fluid comprises the following raw material components in percentage by mass: 40-42% of ethylene glycol, 15-17% of block polyether, 0.1-0.2% of vegetable oil acids, 0.5-1% of triethanolamine, 0.3-0.5% of boric acid, 1-1.5% of glycerin, 0.5-0.8% of diethanol amine, 0.5-1% of mercapto-benzothiazole, 0.01-0.02% of Congo red, 0.1-0.3% of water-based silicone oil and the balance of reagent deionized water. The fire resistant hydraulic fluid is prepared by the steps: in multiple raw material components of the fire hydraulic fluid retardarnt, carrying out a saponification reaction between the vegetable oil acids and triethanolamine to obtain oleamide; reacting the boric acid, diethanol amine and glycerin to obtain borate, mixing deionized water, ethylene glycol, oleamide, borate and Congo red, controlling the reaction conditions, adding the block polyether after the reaction is ended, cooling after stirring and mixing; and adding the mercapto-benzothiazoleand water-based silicone oil, and stirring, thereby obtaining the water-ethanol type fire resistant hydraulic fluid. The water-ethanol type fire resistant hydraulic fluid can be applied to the hydraulic system of the underground coal mine, and safety production and high-efficiency operation of the underground coal mine are ensured.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a water-ethanol type flame retardant hydraulic fluid used in a coal mine underground hydraulic system and a preparation method of the water-ethanol type flame retardant hydraulic fluid used in a coal mine underground hydraulic system. Background technique [0002] With the advancement of coal mining technology, hydraulic equipment is developing in the direction of high pressure, high speed, high temperature and large capacity. When the hydraulic medium is in use, the possibility of leakage from pipelines, pumps and valves is also increasing. Traditional mineral oil-based anti-wear hydraulic fluid is flammable, and it is easy to cause fire accidents when used in hydraulic equipment close to high temperature and fire source, resulting in personal injury and property loss. In order to ensure the safety of mines, especially the safety of coal mine production, it is urgent to use fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M173/02C10M145/24C10N40/08C10N30/02C10N30/06C10N30/08
Inventor 王玉超侯建涛白飞飞刘鲤粽韩勇谢恩情赵昕楠孔令坡翟晶于维雨叶雷于光李硕林
Owner CCTEG CHINA COAL RES INST
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