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Preparation method and application of environmentally-friendly shield tail grease

A shield tail fat and environment-friendly technology, which is applied in the field of shield tail fat, can solve the problems of the shield tail seal being easily damaged, poor pumpability, difficult to reach, etc., and achieve strong water pressure resistance and pumping The effect of good performance and excellent lubricating performance

Active Publication Date: 2019-07-19
南通盘天新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, due to the ever-changing position of the shield when the shield is propelled, the shield tail sealing device is easily damaged, which requires the shield tail grease to have the following characteristics: excellent working stability, good metal adhesion, water resistance and water pressure resistance Excellent pumpability and corrosion resistance, which can effectively prevent the infiltration of water, soil and grouting materials. The shield tail grease used in the prior art is difficult to meet the above requirements
The shield tail fat used in the prior art has poor pumpability at low temperature, which affects the use of shield tail fat, especially the application of shield tail fat when sealing the shield tail

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A preparation method of environment-friendly shield tail fat, comprising the following steps:

[0040] 1) Mix the base oil, tackifier and pumpability improver, heat up to 80°C, stir to make it evenly mixed;

[0041] 2) Add enhancer, keep stirring for 40 minutes;

[0042] 3) Add fillers and lubricants and stir at 70°C for 120 minutes.

[0043] Calculated in parts by weight, the raw materials for the preparation of environmentally friendly shield tail grease include: 22 parts of base oil, 8 parts of tackifier, 3 parts of pumpability improver, 7 parts of reinforcing agent, 30 parts of filler, and 3 parts of lubricant;

[0044]The base oil is anti-wear hydraulic oil and soybean oil, and the weight ratio of the anti-wear hydraulic oil to the soybean oil in the base oil is 1:0.7; the tackifier is a ternary copolymerized high elastic resin, Described ternary copolymerization high elastic resin is ABS resin; Described pumpability improver is C9 petroleum resin; Described rein...

Embodiment 2

[0046] A preparation method of environment-friendly shield tail fat, comprising the following steps:

[0047] 1) Mix the base oil, tackifier and pumpability improver, heat up to 80°C, stir to make it evenly mixed;

[0048] 2) Add enhancer, keep stirring for 40 minutes;

[0049] 3) Add fillers and lubricants and stir at 70°C for 120 minutes.

[0050] Calculated in parts by weight, the raw materials for the preparation of environmentally friendly shield tail grease include: 22 parts of base oil, 8 parts of tackifier, 3 parts of pumpability improver, 17 parts of reinforcing agent, 20 parts of filler, and 3 parts of lubricant;

[0051] The base oil is anti-wear hydraulic oil and soybean oil, and the weight ratio of the anti-wear hydraulic oil to the soybean oil in the base oil is 1:0.7; the tackifier is a ternary copolymerized high elastic resin, Described ternary copolymerization high elastic resin is ABS resin; Described pumpability improver is C9 petroleum resin; Described re...

Embodiment 3

[0053] A preparation method of environment-friendly shield tail fat, comprising the following steps:

[0054] 1) Mix the base oil, tackifier and pumpability improver, heat up to 80°C, stir to make it evenly mixed;

[0055] 2) Add enhancer, keep stirring for 40 minutes;

[0056] 3) Add fillers and lubricants and stir at 70°C for 120 minutes.

[0057] Calculated in parts by weight, the raw materials for the preparation of environmentally friendly shield tail grease include: 22 parts of base oil, 8 parts of tackifier, 3 parts of pumpability improver, 2 parts of reinforcing agent, 40 parts of filler, and 3 parts of lubricant;

[0058] The base oil is anti-wear hydraulic oil and soybean oil, and the weight ratio of the anti-wear hydraulic oil to the soybean oil in the base oil is 1:0.7; the tackifier is a ternary copolymerized high elastic resin, Described ternary copolymerization high elastic resin is ABS resin; Described pumpability improver is C9 petroleum resin; Described rei...

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Abstract

The invention provides a preparation method of environmentally-friendly shield tail grease. The preparation method comprises the following steps: 1) mixing base oil, a tackifier and a pumpability improver, then heating to 50-100 DEG C, and stirring to mix uniformly; 2) adding an enhancer, keeping warm and stirring for 40-60 min; and 3) adding a filler and a lubricant, and stirring for 90-180 min at 50-100 DEG C.

Description

technical field [0001] The invention relates to a shield tail grease of a shield machine, in particular to a preparation method and application of an environment-friendly shield tail grease. Background technique [0002] With the rapid development of my country's economy, the infrastructure construction of various cities is in full swing, especially the construction of urban rail transit. Among them, a total of 43 cities in mainland China are already building underground rail transit, which has set off a climax of underground rail transit construction. The rail transit business and related industries have brought unprecedented challenges and development opportunities. In addition, the small-diameter shield method used in the construction of large-diameter shield method highway tunnels, hydraulic tunnels, power tunnels and urban underground pipelines is also becoming more and more popular. [0003] The tail of the shield is formed by the extension of the steel plate of the sh...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N30/06C10N30/08C10N40/34C10N50/10
CPCC10M169/048C10M2207/401C10M2209/12C10M2201/062C10N2030/08C10N2030/06C10N2040/34C10N2050/10C10N2010/04
Inventor 王烨华
Owner 南通盘天新材料有限公司
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