Efficient anti-freezing solution for hydraulic support and preparation method of efficient anti-freezing solution

A hydraulic support and antifreeze technology, applied in chemical instruments and methods, heat exchange materials, petroleum industry, etc., can solve the problems of rising petrochemical raw material prices, increasing costs, high costs, etc., and achieve simple production equipment and low cost Action wear, reduced storage and turnover costs

Inactive Publication Date: 2021-07-20
CCTEG CHINA COAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, the shortage of petroleum resources and the sharp rise in the price of petrochemical raw materials have led to high costs, which have added a lot of cost to the production of coal enterprises

Method used

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Examples

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preparation example Construction

[0028] According to the preparation method of the high-efficiency antifreeze liquid for the hydraulic support according to the embodiment of the present invention, comprising the following steps:

[0029] A, stirring and mixing castor oil, coconut oil, triethanolamine and monoethanolamine of designed proportioning, react to obtain carboxylic acid amide;

[0030] B, the carboxylic acid amide that described step a obtains is mixed with water, potassium hydroxide, sebacic acid, EDTA;

[0031] C, add ethylene glycol, glycerol, coloring agent of design ratio in the mixed liquor that step b obtains, mix and stir;

[0032] d. Add benzotriazole and water-based polyether to the mixed solution obtained in step c, mix and stir to obtain a high-efficiency antifreeze solution for hydraulic supports.

[0033]According to the advantages and technical effects brought by the preparation method of the high-efficiency antifreeze used for hydraulic supports according to the embodiment of the pre...

Embodiment 1

[0040] Raw materials are prepared, wherein each raw material and its mass percentage are: ethylene glycol 35%, glycerol 20%, coconut oil 0.3%, castor oil 0.15%, EDTA 0.15%, sebacic acid 1.3%, potassium hydroxide 0.25% , 0.7% of triethanolamine, 0.3% of monoethanolamine, 0.5% of benzotriazole, 0.2% of water-based polyether, 0.02% of methyl orange, and the balance is process water.

[0041] Mix castor oil, coconut oil, triethanolamine, and monoethanolamine in a reaction kettle, stir and saponify at 110°C for 3 hours to prepare carboxylic acid amide; add process water, potassium hydroxide, sebacic acid, EDTA, and the prepared carboxylic acid amide Acid amide, stirred for 30 minutes, then added ethylene glycol, glycerin, methyl orange, stirred at 50 ° C for 1.5 hours; finally added benzotriazole, water-based polyether, stirred for 20 minutes; obtained for hydraulic supports high-efficiency antifreeze.

[0042] Referring to the MT / T76-2011 standard, the antifreeze solution prepare...

Embodiment 2

[0046] Prepare raw materials, wherein each raw material and its mass percentage are: ethylene glycol 35%, glycerol 15%, coconut oil 0.5%, castor oil 0.1%, EDTA 0.2%, sebacic acid 1%, potassium hydroxide 0.3% , 0.5% triethanolamine, 0.4% monoethanolamine, 0.5% benzotriazole, 0.3% water-based polyether, 0.01% methyl orange, and the balance is process water.

[0047] Mix castor oil, coconut oil, triethanolamine, and monoethanolamine in a reaction kettle, stir and saponify at 110°C for 3 hours to prepare carboxylic acid amide; then add process water, potassium hydroxide, sebacic acid, and EDTA to prepare Carboxylic acid amide, stirred for 30 minutes, then added ethylene glycol, glycerol, methyl orange, stirred at 50°C for 1 hour; then cooled down to 40°C, finally added benzotriazole, water-based polyether, stirred 20 minutes; get high-efficiency antifreeze for hydraulic supports.

[0048] Referring to the MT / T76-2011 standard, the antifreeze prepared in this example was used for ...

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Abstract

The invention discloses an efficient anti-freezing solution for a hydraulic support. The efficient anti-freezing solution is prepared from the following components in percentage by mass: 25%-35% of ethylene glycol, 15%-20% of glycerol, 1.0%-1.9% of carboxylic acid amide, 0.1%-0.2% of EDTA, 1%-1.5% of sebacic acid, 0.2%-0.3% of potassium hydroxide, 0.3%-0.7% of benzotriazole, 0.1%-0.2% of waterborne polyether and 41%-57% of water; wherein the carboxylic acid amide is prepared by reacting 1-2 parts by weight of castor oil, 2-5 parts by weight of coconut oil, 5-8 parts by weight of triethanolamine and 2-4 parts by weight of monoethanolamine. The efficient anti-freezing fluid can be used at the low temperature of -40 DEG C to -60 DEG C, has good cleaning capacity and metal corrosion inhibition performance, and can be mutually dissolved with high-water-content hydraulic fluid. The invention further discloses a preparation method of the efficient anti-freezing solution for the hydraulic support. The preparation process is simple, production equipment is simple, reaction conditions are mild, the efficient anti-freezing solution for the hydraulic support is suitable for industrial large-scale production; the prepared efficient anti-freezing solution for the hydraulic support is excellent in performance, wide in application range and capable of meeting normal use in winter in northern areas, so that the market prospect is expanded.

Description

technical field [0001] The invention belongs to the field of liquid for hydraulic supports, in particular to a high-efficiency antifreeze liquid for hydraulic supports, and in particular, to a preparation method for high-efficiency antifreeze liquid for hydraulic supports. Background technique [0002] In recent years, with the development of mechanical equipment and the progress of coal mining technology, hydraulic supports have gradually developed in the direction of large tonnage, large mining height, high power, automation and heavy load, playing an extremely important role in the field of coal mining. At present, hydraulic supports and pump stations for comprehensive mechanized coal mining at home and abroad still widely use low-concentration hydraulic transmission media with a water content of 95-97%. The freezing point of this type of medium is about -2°C, and the volume expansion after freezing is 7.6%. It is easy to damage the equipment containing such media by fre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/20C10M173/02C10N40/08C10N30/06C10N30/12
CPCC09K5/20C10M173/02C10M2207/022C10M2215/08C10M2215/04C10M2207/127C10M2201/062C10M2215/223C10M2209/103
Inventor 沈栋侯建涛刘鲤粽李善鹏李硕林赵昕楠刘艺芳薛永升赵建阳王守利于维雨尤秀全王丹
Owner CCTEG CHINA COAL RES INST
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