Shield tail sealing grease

A shield tail sealing and grease technology, which is used in the petroleum industry, lubricating compositions, etc., can solve the problems of insufficient adhesion and pumpability of shield tail sealing grease quality, and achieve good pumping effect, reduced wear, and good adhesion. sexual effect

Active Publication Date: 2011-04-27
东莞市明洁隧道建设材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The shield tail seal grease currently on the market needs to be improved in terms of anti-rust, anti-corrosion and wear-reducing properties, and the quality of the shield tail seal grease is also insufficient in terms of adhesion and pumpability.

Method used

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Embodiment Construction

[0013] In order to further understand the characteristics, technical means, and achieved specific objectives and functions of the present invention, the following specific embodiments will further describe the present invention in detail.

[0014] A shield tail sealing grease, each component and its weight percentage are as follows:

[0015] Base oil 14~25%

[0016] Lubricating oil 9~21%

[0017] Chlorinated paraffin 7~14%

[0018] Polyethylene butylene 11~26%

[0019] Fiber 5~12%

[0020] Calcium carbonate CaCO? 25 ~ 41%.

[0021] When specifically preparing, each component and its weight percentage are:

[0022] 1. Base oil 18%

[0023] 2. Lubricating oil 17%

[0024] 3. Chlorinated paraffin 10%

[0025] 4. Polyethylene butylene 15%

[0026] 5. Fiber 10%

[0027] 6. Calcium carbonate 30%.

[0028] The method of using shield tail sealing grease of the present invention is used when shield tunneling starts:

[0029] 1. Wire brush application

[0030] 1-1 wire bru...

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PUM

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Abstract

The invention provides shield tail sealing grease with high water resistance and high water sealing performance. The shield tail sealing grease has high pump pressure conveyance feasibility, does not corrode spacers among cement annular duct pieces, is easily filled among wire brushes, and has long using cycle and high quality. The shield tail sealing grease comprises the following components: base oil, lubricating oil, chlorinated paraffin, polybutene, fibers and calcium carbonate. When coated on metal plates or concrete surfaces or in the dry and wet state or in water, the shield tail sealing grease has the advantages of high adhesivity, high sealing performance, high abrasion resistance, high leachability resistance, good pumping effect, environmental friendliness, no toxicity, no odor, no corrosion to equipment, reduction in abrasion of shield equipment, stable products, ageing resistance and oxidation resistance.

Description

technical field [0001] The invention relates to an industrial oil, in particular to a sealing material injected by a steel wire brush of a tunnel shield machine constructed by shield tunneling method in underground engineering. Background technique [0002] In order to meet the needs of urban construction, there are more and more underground projects. For underground projects built without affecting the existing ground buildings, the construction methods commonly used at present are shield method or pipe jacking method. Shield tunneling is a construction machine tool for tunnel construction, it can play the role of support when excavating the ground and assembling the lining. The shield tail is formed by the extension of the steel plate of the shield shell, and its function is to cover the assembly work of the tunnel lining. A shield tail sealing device is installed at the end of the shield tail. The shield tail sealing device is extremely vulnerable to damage due to the ev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N40/34C10N50/10C10N30/10C10N30/06
Inventor 周毅
Owner 东莞市明洁隧道建设材料有限公司
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