Inorganic reinforcement water-plugging agent

Abstract

The invention discloses a reinforcement water-plugging agent, particularly relates to an inorganic reinforcement water-plugging agent and belongs to the technical field of production and manufacturing of water-plugging agents. The inorganic reinforcement water-plugging agent comprises a component A and a component B in a weight part ratio of 1:1, wherein the component A is isocyanate and the component B comprises the following components in parts by weight: 36-48 parts of water glass, 0.5-4 parts of fatty amine, 0- 5.5 parts of alum salt, 0-0.8 part of a foaming agent, 0-8 parts of water, 0-3 parts of potassium dichromate and 0-5 parts of a plasticizer, wherein the plasticizer is conventional DOP (Dioctyl Phthalate)or DBP (Dibutyl Phthalate). In application, the inorganic reinforcement water-plugging agent is pumped into a mixer and a mixing pipe by virtue of a double-liquid pump for automatic mixing and grouting. The inorganic reinforcement water-plugging agent has the advantages of high coagulation speed, high early strength, no pollution and convenient construction, and the compressive strength which is equal to or greater than 40MPa can be achieved in 30 minutes.

Description

technical field [0001] The invention relates to a reinforced water shutoff agent, in particular to an inorganic reinforced water shutoff agent, belonging to the technical field of water shutoff agent production. Background technique [0002] With the continuous deepening of underground mining in coal mines, the rock burst is getting bigger and bigger, and more and more coal sides and roofs are reinforced in advance in coal mining. Otherwise, some coal mines cannot continue to mine, and most of the coal mine roadways leak water. The phenomenon is serious, seriously affecting mining and even endangering the life safety of coal miners. Therefore, strengthening and preventing water leakage is also the top priority of coal mine work. Commonly used coal and rock mass strengthening agents mainly include epoxy resins, acrylamides, and phenolic resins. In the actual safety reinforcement, there are low flame retardancy, insufficient compressive strength, poor bonding strength, and fu...

AI Technical Summary

Problems solved by technology

[0004] At present, such materials on the market mostly use quick-setting cement for underground construction. First, the amount of use is too large, which is labor-intensive and time-consuming. Second, the quick-setting time of cement is long and difficult to adjust, and the sealing and sealing effect is poor when encountering a large amount of water; The third is that the solidified crystals of cement materials have poor bonding strength with the oily surface of coal containing a large amount of aromatic hydrocarbons, the intermolecular force is small, the bonding is poor, and the sealing effect is not good.

In addition, the common cement quick-setting agent is Cl in the reactant - , the increase of strong alkaline ions increases the corrosion of metal supports after construction and the damage to workers at the construction site

Moreover, on-site construction is more difficult, and the bagged materials need to be dissolved and stirred on site. If there is a slight deviation in the addition of materials and water, it will make it difficult to control the quality and directly affect the construction quality, and may be completely scrapped on site.