Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

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
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 limitations, because the setting time and strength of liquid quick-setting agent develop slowly. Rock and water seepage areas cannot be quickly molded, the rebound is huge, and the effect is not good

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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

Examples

Experimental program
Comparison scheme
Effect test

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 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Compressive strengthaaaaaaaaaa
Compressive strengthaaaaaaaaaa
Water permeabilityaaaaaaaaaa
Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products