Salt lake salt pan anti-seepage agent and preparation and construction method thereof

A construction method and technology of an anti-seepage agent are applied in the field of soil anti-seepage agent and its preparation and construction, which can solve problems such as easy to cause leakage, and achieve the effects of simple and easy preparation and construction method, low price and low cost

Active Publication Date: 2020-01-14
CHANGSHA DESIGN & RES INST OF CHEM IND MIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The anti-seepage of the above anti-seepage agents on the surface or shallow soil of various specific compositions used in the construction of salt pans in western China (such as Qinghai, Xinjiang, Tibet, etc.) has not been reported, and the soil in these areas contains a large amount of Calcium carbonate, magnesium carbonate and other carbonates make it contain a large number of pores of different sizes, which is easy to cause leakage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] An anti-seepage agent for salt lake and salt fields, the composition of which is:

[0037]Synthetic copolymer with a mass fraction of 1.5%, water glass with a modulus of 2.6 and a Baume degree of 30°Bé with a mass fraction of 10%, bentonite with a mass fraction of 15%, and methyl silicic acid with a mass fraction of 5%. Sodium, dihydrate gypsum with a mass fraction of 10%, and the rest as water.

[0038] The preparation and construction method of present embodiment anti-seepage agent, concrete steps are:

[0039] (1) Copolymer synthesis: monomer A is selected as sodium 2-acrylamide-2-methylpropanesulfonate, monomer B is selected as acrylic acid, and the ratio is 3.0 kg of monomer A and 7.0 kg of monomer B kg, the monomer A and the monomer B are operated to generate a water-soluble copolymer through a conventional polymerization reaction, and after washing and drying processes, the white synthetic copolymer particles with a mass of 9.5 kg are obtained;

[0040] (2) Sti...

Embodiment 2

[0046] An anti-seepage agent for salt lake and salt fields, the composition of which is:

[0047] Synthetic copolymer with a mass fraction of 1.0%, water glass with a mass fraction of 15%, a modulus of 2.6, and a Baume degree of 30 °Bé, a mass fraction of 12% bentonite, and a mass fraction of 8% methyl silicic acid Sodium, the mass fraction is 8% dihydrate gypsum, and the rest is water.

[0048] The preparation and construction method of present embodiment anti-seepage agent, concrete steps are:

[0049] (1) Copolymer synthesis: Monomer A is selected as sodium 2-acrylamide-2-methylpropanesulfonate, monomer B is selected as methacrylic acid, and the ratio is 4.5 kg of monomer A, monomer B The mass is 5.5 kg. Monomer A and monomer B are subjected to conventional polymerization operations to generate water-soluble copolymers. After washing and drying processes, white synthetic copolymer particles with a mass of 9.1 kg can be obtained;

[0050] (2) Stir the synthetic copolymer, ...

Embodiment 3

[0056] An anti-seepage agent for salt lake and salt fields, the composition of which is:

[0057] 0.8% by mass of synthetic copolymer, 18% by mass of water glass with a modulus of 2.6 and a Baume degree of 30 °Bé, 10% by mass of bentonite, and 10% by mass of methyl silicic acid Sodium, the mass fraction is 12% dihydrate gypsum, and the rest is water.

[0058] The preparation and construction method of present embodiment anti-seepage agent, concrete steps are:

[0059] (1) Copolymer synthesis: Monomer A is selected as sodium 2-acrylamide-2-methylpropanesulfonate, monomer B is selected as methacrylic acid, and the ratio is 4.5 kg of monomer A, monomer B The mass is 5.5 kg. Monomer A and monomer B are subjected to conventional polymerization operations to generate water-soluble copolymers. After washing and drying processes, white synthetic copolymer particles with a mass of 9.1 kg can be obtained;

[0060] (2) Stir the synthetic copolymer, bentonite and dihydrate gypsum evenly...

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Abstract

The invention relates to a salt lake salt pan anti-seepage agent, which comprises a component A and a component B, wherein the component A is formed by mixing a synthetic copolymer, clay and calcium-containing mineral, the component B is formed by mixing water-soluble silicate and fresh water, and the components specially comprise, by mass, 0.5-1.5% of synthetic copolymer, 10-20% of clay, 12-30% of water-soluble silicate, 8-20% of calcium-containing minerals and the balance of fresh water. The invention further provides a construction method of the anti-seepage agent. According to the invention, the characteristic complementation of all the components is fully utilized, and the seepage-proofing performance is excellent; the adopted raw materials are chemicals with characteristics of easilyavailable source and low price, so that the cost is low; and the preparation and construction method is simple and feasible, is suitable for large-scale engineering, and is especially suitable for seepage prevention of salt lakes and salt pans in Qinghai, Xinjiang, Tibet and other places.

Description

technical field [0001] The invention relates to an anti-seepage agent and its preparation and construction method, in particular to a soil anti-seepage agent and its preparation and construction method. Background technique [0002] Seepage is a common phenomenon of liquid phase loss in natural water bodies. [0003] For salt fields, whether they are sun-dried salt fields along the coast or naturally evaporated salt fields in inland salt lakes in Northwest China, leakage is inevitable during production and operation. [0004] For salt pan production, seepage is a matter of great concern. Leakage causes the brine in the salt pan to be lost to the ground before it is transformed into solid ore through evaporation. Generally, most of the lost brine cannot return to the original storage area during the service period of the mine and become a mineable resource again. There are two reasons for this: on the one hand, because the salt pan is often far away from the mining area, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26C04B111/27
CPCC04B28/26C04B2111/00732C04B2111/27C04B14/104C04B24/42C04B22/143C04B24/163
Inventor 蒋世鹏甘顺鹏孙成高谢晶磊季荣余俊胡勇谢超郑贤福艾自强罗稳梁晓玲
Owner CHANGSHA DESIGN & RES INST OF CHEM IND MIN
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