The dust removal equipment utilizes the dust removal water pipe and the pressure air pipeline in the underground, adds certain additives in the water, introduces the wind pressure, and completes a series of processes such as suction---mixing---foaming through special equipment to generate foam. Sprayed onto the dust source through the dispenser and the nozzle holder assembly. The foam acts on the dust through good coverage, wetting, adhesion, etc., effectively reducing the dust concentration on the mining surface, greatly improving the working environment of the mining face, improving the working efficiency of the underground workers, and effectively reducing the dust of the first-line workers. The incidence of the disease.
Compared with other wet dust suppression methods, foam dust suppression can reduce water consumption by 50% to 80%, and dust suppression efficiency is 3 to 5 times higher than spray watering. Foam dust suppression has the following characteristics:
1. The foam can cover the dust source without voids, and fundamentally prevent the dust from spreading outward;
2. After the liquid forms a foam, the total volume and total surface area are greatly increased, the collision efficiency with the dust is increased, and the working environment of the underground mining face is purified;
3. The liquid film of the foam contains special additives, which can quickly change the wet performance of the dust and increase the speed at which the dust is wetted;
4, the foam has a very good viscosity, the dust and foam will quickly adhere to the foam after contact.
5. Suppress the spark generated by the boring machine pick and the action of coal and rock, and eliminate the gas and coal dust explosion accidents.
6. The water consumption is small, which avoids the sinking of the comprehensive excavator caused by the large amount of water and dust removal, and improves the working efficiency.
7. High dust removal efficiency, greatly improve the sight of the roadheader driver, eliminate the potential safety hazards, and improve the section quality and production efficiency.
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