Epipastic mineral surface solidifying agent

Abstract

The invention discloses a powdered mineral surface curing agent which comprises swelling starch, alum, anhydrous calcium chloride, bentonite of calcium, borax and other accessory ingredients. The powdered mineral surface curing agent has the advantage that a 'liquid tarpaulin' is used in a way of spraying in the process of transporting coal or powdered ore by utilizing swelling adhesive technology. As the coal layer or the powdered ore layer is effectively sprayed and covered, the loss, the environmental pollution and potential safety hazard which are caused in the transportation of coal or powdered ore can be reduced. Being different from the original method for oxidizing and pasting by using other formulation under the condition of liquidoid, the invention reduces a great deal of equipment and complicated working procedures. For the transportation of coal or powdered ore, the powdered mineral surface curing agent does not change the original properties of coal or powdered ore and has the advantages of lower cost, non-toxicity, no corrosion, no pollution, light weight, good fluidity, rapid dryness, fine toughness, high primary adhesive force, stable viscocity, high intensity, strong curing force, high stability, simple and convenient use, etc.

Description

Technical field: [0001] The invention relates to a curing agent, in particular to a powdery mineral surface curing agent. Background technique: [0002] The coal surface solidification spraying technology currently used in the market adopts inorganic adhesive technology or modified starch adhesive technology. During the production process, workers are repeatedly exposed to strong alkali and aqueous solutions such as sodium hypochlorite, sodium thiosulfate, copper sulfate, and hydrogen peroxide. Burns, scalds and other injuries occur from time to time. In addition, polyvinyl alcohol must be dissolved at high temperature and then cooled down. Not only the chemical composition ratio is complicated, the production cost is high, and the performance is unstable. It also needs to be equipped with large hot water boilers, large reaction kettles and stirring tanks. The use of hot water boilers not only increases energy consumption but also increases the emission of coal ash and smoke...

AI Technical Summary

Problems solved by technology

A large number of manual operations, not only cumbersome production, but also lack of security

The viscosity of the product is unstable, the bonding speed is slow, the storage performance is poor, and the liquid transportation is inconvenient, etc.

The large amount of dust generated by the transportation of coal seriously pollutes the environment along the way. At the same time, the spontaneous combustion caused by the stacking of coal in the coal factory is also extremely serious.

[0003] At the same time, for other ore powders such as powders, there is also a phenomenon of dust flying during transportation and stacking, resulting in a large loss of ore powder during stacking and transportation, and also pollutes the environment.