a hydraulic oil

A technology of hydraulic oil and oily extreme pressure agent, which is applied in the field of hydraulic oil, can solve the problems of poor flame resistance and achieve good shear resistance, corrosion prevention, and excellent corrosion resistance

Active Publication Date: 2018-02-06
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hydraulic oil has good lubricity, good anti-coagulation and low-temperature fluidity, but its flame resistance is poor

Method used

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  • a hydraulic oil
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preparation example Construction

[0028] In the present invention, the preparation method of the hydraulic oil preferably comprises the following steps:

[0029] a) mixing a glycol compound and a tackifier to obtain a first mixture;

[0030] b) mixing the first mixture obtained in step a) with water, antirust agent, metal deactivator, oily extreme pressure agent, and pH regulator to obtain a second mixture;

[0031] c) mixing the second mixture obtained in step b) with the antifoaming agent to obtain hydraulic oil.

[0032] In the present invention, the glycol compound and the tackifier are mixed to obtain the first mixture. In the present invention, it is preferred to raise the temperature of the diol compound to 70°C-90°C, and then mix it with the tackifier; more preferably, the temperature of the glycol compound is raised to 75°C-85°C, and then mixed with the tackifier Mixing; most preferably, the diol compound is heated to 80°C, and then mixed with the tackifier. In the present invention, it is preferre...

Embodiment 1

[0042] Step a), send 35kg of ethylene glycol into the blending kettle with a gear pump, evacuate, stir, heat, and raise the temperature to 80°C; add 18kg of tackifier KE-1 to the heated ethylene glycol, and stir until it increases. The adhesive is completely dissolved to obtain the first mixture;

[0043] Step b), adding 40.8kg water to the first mixture obtained in step a), then adding 2.45kg barium dinonylnaphthalenesulfonate, 2.2kg lauric acid, 0.25kg ethylenediaminetetraacetic acid, 1.2kg ethanolamine, temperature control At 70°C, dissolve to obtain the second mixture;

[0044] Step c), adding 0.1kg PE-6100 antifoam agent to the second mixture obtained in step b), dissolving to obtain the third mixture, taking out 10kg of the third mixture, adding 0.03% clay of all the third mixture weight wherein Stir the filter aid, and carry out circulating filtration, so that the filter aid forms a filter cake in the filter machine, and then circulate and filter the remaining 90kg of ...

Embodiment 2

[0046] Step a), 45kg of ethylene glycol is sent into the blending kettle with a gear pump, evacuated, stirred, heated, and the temperature is raised to 80°C; 13kg of tackifier polyethylene glycol is added to the heated ethylene glycol, and stirred until it increases The adhesive is completely dissolved to obtain the first mixture;

[0047] Step b) Add 33.9 kg of water to the first mixture obtained in step a), then add 5 kg of dodecenylsuccinic acid, 0.5 kg of oily extreme pressure agent T406, and 0.5 kg of thiadiazole derivatives of T561 , 2kg triethanolamine, temperature controlled at 70°C, dissolved to obtain the second mixture;

[0048] Step c) Add 0.1 kg of simethicone antifoam agent mother liquor to the second mixture obtained in step b), and after dissolving, a third mixture is obtained; 10 kg of the third mixture is taken out, and 0.03% diatomaceous earth of all the third mixture weight is added Stir the filter aid, and carry out circulating filtration, so that the fil...

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Abstract

The invention provides a hydraulic oil, which comprises the following components in mass fraction: 30%-50% of water; 35%-55% of glycol compounds; 10%-18% of tackifier; 0.05%- 5%; metal deactivator 0.1% ~ 0.5%; oily extreme pressure agent 0.5% ~ 5%; pH regulator 0.5% ~ 2%; antifoaming agent 0.005% ~ 0.1%. The hydraulic oil provided by the present invention takes water and glycol compounds as the base fluid, and uses tackifiers, rust inhibitors, metal deactivators, oily extreme pressure agents, pH regulators and antifoaming agents as functional additives, Makes the hydraulic oil have excellent flame resistance. In addition, the hydraulic oil provided by the invention also has excellent corrosion resistance, and can effectively prevent corrosion caused by water ingress of oil products during operation in coal mines; the hydraulic oil has good shear resistance, and meets the needs of safe production in coal mines.

Description

technical field [0001] The invention belongs to the field of coal mine underground hydraulic support hydraulic systems, and in particular relates to a hydraulic oil. Background technique [0002] Hydraulic oil is the medium through which the hydraulic system transmits power. Its main function in the hydraulic system is to transmit the force exerted by a certain point in the hydraulic system to other parts. At the same time, hydraulic oil also has lubricating, anti-rust, anti-corrosion protection and cooling functions. With the continuous development of hydraulic technology, the quality requirements of hydraulic oil are getting higher and higher, and the improvement of hydraulic oil quality has promoted the further improvement of hydraulic technology. 70% of the energy needed for the sustainable development of my country's national economy comes from coal, and coal mining uses more hydraulic equipment, and coal mining, tunneling, transportation, lifting and other equipment a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M173/02C10N40/08C10N30/12
Inventor 李健曹毅赵玉贞金承华
Owner CHINA PETROLEUM & CHEM CORP
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