Wet spraying system for soft rock water seepage section and using method of wet spraying system

A field and wet spraying technology, which is applied in the direction of earth drilling, underground chambers, shaft equipment, etc., can solve the problems of large limitations, slow setting time and strength development of liquid accelerators, and poor results.

Pending Publication Date: 2021-03-30
WUHU HONGMA NEW MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the traditional wet spraying process can only be matched with liquid quick-setting agent, which is mainly suitable for hard rock anhydrous areas, and has great limitatio...

Method used

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  • Wet spraying system for soft rock water seepage section and using method of wet spraying system
  • Wet spraying system for soft rock water seepage section and using method of wet spraying system
  • Wet spraying system for soft rock water seepage section and using method of wet spraying system

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Embodiment 1

[0063] The principle of the wet spray system is as follows: figure 1As shown, the concrete is mixed according to the required performance by the mixing station and then transported to the construction site and put into the concrete storage tank of the wet spraying unit. The concrete enters the inner cavity of the mixer 1 through the conveying system. The liquid accelerator becomes pressurized powder and liquid after passing through the conveying equipment and pressurizing equipment, and enters the cavity before the inner sleeve and the outer sleeve of the mixer 1 at high speed and high pressure, and then enters the mixer 1 through the small holes distributed on the inner sleeve The concrete in the cavity is mixed evenly, and the concrete mixed with the accelerator is sprayed on the base of the seepage surrounding rock through the nozzle 4, and the water seepage rate is 10L / min.

[0064] The alkali-free powder accelerator used is 30.0 parts of activated calcium aluminate, 15.0 ...

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Abstract

The invention relates to the field of wet spraying processes, in particular to a wet spraying system for a soft rock water seepage section and a using method of the wet spraying system. The wet spraying system comprises accelerator supply equipment, concrete supply equipment and a spraying mechanism; the spraying mechanism comprises a nozzle; the nozzle is connected with a flow mixer, and the flowmixer is correspondingly connected with accelerator supply equipment and concrete supply equipment; and the accelerator supply equipment comprises powder accelerator supply equipment and liquid accelerator supply equipment. According to the wet spraying system for the soft rock water seepage section, through cooperative use of the powder accelerator and the liquid accelerator, the wet spraying system can be well used in the water seepage soft rock section.

Description

technical field [0001] The invention relates to the field of wet spray technology, in particular to a wet spray system for soft rock seepage sections and a method for using the same. Background technique [0002] The spraying methods of shotcrete mainly include dry spraying and wet spraying. [0003] The dry spraying process has high rebound, large dust, serious loss of concrete strength in the later stage, and poor construction quality, which seriously endangers the health of construction workers and pollutes the environment. But because it can be applied to soft rock and seepage tunnels, it still occupies a certain share in shotcrete. [0004] The wet spraying process, especially after the development of the alkali-free liquid accelerator gradually matures, has become a domestic and foreign The development trend of shotcrete technology. [0005] However, the traditional wet spraying process can only be matched with liquid quick-setting agent, which is mainly suitable fo...

Claims

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Application Information

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IPC IPC(8): E21D11/10C04B28/06
CPCE21D11/10C04B28/06C04B22/148C04B22/143C04B22/08C04B22/06C04B22/064C04B24/122C04B24/24C04B14/062
Inventor 马荣田马伟斌顾忠良郭小雄马超锋欧志强
Owner WUHU HONGMA NEW MATERIAL
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