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Shield waste mud gel breaker as well as use method and application thereof

A technology of waste mud and gel breaker, which is applied in the fields of chemical instruments and methods, sludge treatment, water/sludge/sewage treatment, etc. It can solve the difficulties in the treatment of waste mud of shield tunneling, the inability to reuse the waste mud of shield tunneling, environmental issues

Pending Publication Date: 2022-04-12
中铁发展投资有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) It is difficult to dispose of the waste mud of shield tunneling in the prior art, and it is not environmentally friendly
[0007] (2) In the prior art, the waste mud of shield tunneling cannot be reused

Method used

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  • Shield waste mud gel breaker as well as use method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1 of the present invention provides a shield waste mud shredder comprising a component of mass: waste shield mud (aquifer fraction 80%), 0.008 sulfate, iron sulfate, iron chloride 0.004 copies, 0.004 plaster powder, 0.002 industrial antifoaming agents, 0.002 sodium industrial grade carbonate.

[0035] Take 5% of the water volume of water, and add Al in accordance with quality parts. 2 (SO 4 ) 3 · 18h 2 O, FECL 3 · 6h 2 O, gypsum powder, industrial antifoaming agent, industrial grade carbonate agitate and mixed with mixed solution to give the mixed solution to the shield waste mud stirring 3-5 min to obtain a mixed solution, and the treatment is completed.

Embodiment 2

[0037] Example 2 of the present invention provides a shield waste mud shredder comprising a component of mass: waste shield mud (aqueous mass fraction 80%), 0.008 sulfate, ferricide 0.007 parts, 0.009 gypsum powder, 0.002 industrial antifoaming agents, 0.002 sodium carbonate.

[0038] The use of the shield waste mud shredder is the same as the method of using the shield waste mud shredder in Example 1.

Embodiment 3

[0040]Example 3 of the present invention provides a shield waste mud shroud, including components such as a mass component: abandoned shield mud (aquifer fraction 80%), 0.008 parts of aluminum sulfate, iron chloride 0.01 copies, 0.01 plaster powder, 0.03 industrial antifoaming agents, 0.003 sodium carbonate.

[0041] The use of the shield waste mud shredder is the same as the method of using the shield waste mud shredder in Example 1.

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Abstract

The invention belongs to the technical field of slurry shield waste slurry treatment, and discloses a shield waste slurry gel breaker as well as a use method and application thereof. The shield waste mud gel breaker is prepared from the following components in parts by mass: 0.008 to 0.03 part of aluminum sulfate, 0.004 to 0.01 part of ferric trichloride, 0.01 to 0.03 part of industrial defoaming agent, 0.0009 to 0.004 part of pH (Potential of Hydrogen) regulator and 0.004 to 0.014 part of gypsum powder. When the shield waste mud gel breaker is used, the materials are prepared according to 1 part by mass of mud. The aluminum sulfate, the ferric trichloride, the defoaming agent, the PH regulator and the gypsum powder are compounded according to a certain proportion and added into the shield waste slurry with the water mass fraction of 80% to be evenly mixed and dispersed, the dehydration rate of the treated slurry reaches 35% or above within 5 h, clear liquid separated out of the upper layer meets the national environmental protection standard, reutilization or standard discharge is achieved, and the method is suitable for industrial production. Therefore, scientific and environment-friendly treatment on the shield waste slurry is realized.

Description

Technical field [0001] The present invention belongs to the field of mud water shield waste mud treatment technology, and more particularly to a shield waste mud shredder, a method of use and its application thereof. Background technique [0002] At present, with the rapid growth of the population of large cities and the expansion of the urban scale, the application technology of facilitating public transportation is increasingly widely used. The construction of mud water shield tunnels has the advantages of high geological adaptability, high geological adaptability, and high opening surface stability have become the first choice for the construction of the Yangtze River Tunnel at home and abroad. Under a variety of complex geological conditions, the waste mud treatment capacity of mud water shield directly restricts the production efficiency of shield construction, especially the treatment capacity of the waste paste, directly determines the feasibility of the mud water shield. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/143
Inventor 冯慧君王尧周耀升卜凡帅孙宏远杜弘喆
Owner 中铁发展投资有限公司
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