Unlock instant, AI-driven research and patent intelligence for your innovation.

Coal roadway filling colloidal material with re-absorption function and its application method

A technology of colloidal material and coal roadway, which is applied in the direction of filling, mining equipment, earthwork drilling and mining, etc. It can solve the problems of cracking, deformation, and poor durability, and achieve good water retention, improved sealing effect, and strong stability.

Active Publication Date: 2019-01-04
NORTH CHINA INST OF SCI & TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the durability of this composite material is poor, and problems such as cracking and deformation will occur after a period of use, and it needs to be refilled

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] A coal roadway filling colloidal material with reabsorption function, comprising the following components: the following parts are parts by weight,

[0026] 61.5 parts of fly ash, 0.75 parts of flocculant, 0.875 parts of colloidal stabilizer,

[0027] The flocculant comprises the following components: 65-70wt% of polyacrylamide, 3.5-5wt% of 2-amino-5-bromothiazole-4-ethyl carboxylate, 1.5-2wt% of (S)-3-hydroxybutyric acid Methyl ester, 3-4wt% 4-propoxyphenol, 5-8wt% 3-acetamidoacetophenone, and the balance being bis(pentamethylcyclopentene)titanium dichloride;

[0028] The colloid stabilizer comprises the following components: 35-45wt% sorbitan ester, 5.5-9wt% 4-cyanobenzaldehyde, 7-15wt% 4-amino-N-methylbenzamide, 2.5-4wt% % octadecylbenzyl ammonium chloride, 5-10wt% sodium carbonate, 1.5-2wt% tetradecylbenzene, and the balance being dimethyl dodecanedioate.

[0029] Among them, the particle size of the fly ash is 50-100 μm.

[0030] A method for using the above-men...

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

No PUM Login to View More

Abstract

The invention discloses a coal road filling colloid material with a reabsorption function. The coal road filling colloid material comprises, by weight, 60-80 parts of coal ash, 0.5-1 part of flocculant and 0.5-2 parts of colloid stabilizers. The invention further discloses a using method of the coal road filling colloid material with the reabsorption function. The using method comprises the following steps that A, the coal ash, the flocculant and the colloid stabilizers are put into a container to be fully stirred, and a raw material mixture is obtained; B, water is added into the raw material mixture, and filling colloid is formed; C, the filling colloid is injected into a filling area through an injection pump; D, a mixture of buffer materials and water is injected into the filling area through the injection pump, and the buffer materials form a buffer layer under the filling colloid injected in the step C; and E, the filling colloid is injected into the remaining area of the filling area through the injection pump. By adoption of the coal road filling colloid material with the reabsorption function and the using method thereof, the defects in the prior art are overcome, and the durability of the filling colloid is improved.

Description

technical field [0001] The invention relates to the technical field of fire prevention and safety in underground coal mines, in particular to a coal roadway filling colloid material with a reabsorption function and a use method thereof. Background technique [0002] my country is rich in coal resources. Coal is the most important energy in our country and occupies a dominant position in the current energy structure. Coal accounts for about 70% of the primary energy produced and consumed in our country. It has been determined in the national "Energy Medium and Long-term Development Plan (2004-2020)" that my country will "adhere to the energy strategy of taking coal as the main body, electricity as the center, and comprehensive development of oil, gas and new energy". Obviously, the coal industry is my country's The healthy, stable and sustainable development of basic industries is a major issue related to national energy security. [0003] At present, one of the main issues r...

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
Patent Type & Authority Patents(China)
IPC IPC(8): E21F5/00E21F15/00
CPCE21F5/00E21F15/005
Inventor 王玉怀孙春峰高明孙英娟任建军索航余博
Owner NORTH CHINA INST OF SCI & TECH