Coal mine rescue equipment | Mining rescue equipment | Mining machinery equipment
ZHJ Series Mine-Use Mobile Firefighting Grouting Equipment
The ZHJ series mobile fire-prevention grouting equipment for coal mines can be deployed in underground working faces and goaf areas where coal spontaneous combustion poses a risk, serving as a device to inject slurry-like materials—such as water-based mud, fly ash slurry, lime slurry, and chemical gels—or even higher-viscosity liquids, including concentrates containing mechanical impurities and solid particles—for fire suppression. By utilizing inorganic mineral materials, this equipment effectively fills areas prone to spontaneous combustion underground, absorbing the thermal energy released from oxidizing coal, inhibiting further oxidation of coal, and sealing off airflow pathways—all critical functions that help prevent fires.
- Product Description
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Mining-Use Mobile Fire-Prevention and Grouting Unit
Product Overview
The ZHJ series of mobile fire-prevention grouting systems for coal mines are designed for use in underground working faces and goaf areas where there is a risk of spontaneous coal combustion. These systems deliver slurry-like materials—such as water-based mud, fly ash slurry, lime slurry, or chemical gels—as well as highly viscous liquids and concentrated substances containing mechanical impurities and solid particles—for effective fire suppression. By utilizing inorganic mineral materials, the system efficiently fills areas prone to spontaneous combustion underground, absorbing the thermal energy released by oxidizing coal, inhibiting further oxidation, and sealing off airflow pathways—all critical functions in preventing fires.
Product Features and Benefits
Features:
1. Designed to meet the demands of underground coal mine environments and mine fire prevention, this equipment boasts exceptional mobility. The complete set is equipped with a mine car chassis, paired wheels, axle supports, and impact buffers—all manufactured according to standard rail profiles and gauge specifications used in coal mines, allowing for direct deployment and operation underground.
2. The grouting device can finely grind non-combustible grouting materials and mix them with water according to a specific ratio to create a fire-extinguishing agent. This agent is then delivered via pipelines—either by static or dynamic pressure—to the mine’s fire-prevention and firefighting zones, effectively inhibiting coal oxidation or extinguishing already ignited coal masses.
3. Rotate the liquid tanks to ensure continuous operation of the pump;
4. The complete set of equipment includes an automatic stirring pulp system, a pressurized slurry delivery system, a pressure and flow regulation system, and an electrical control system. Once the entire setup is moved to the work site and the power is connected, it’s ready to operate.
5. The electrical control system—including motors and switches—is entirely designed with explosion-proof, mining-grade components, making it suitable for dual voltages of 660/1140V.
Advantages:1. Underground rail-mounted, offering convenient transportation;
2. Select two (or more) powdered materials for the slurry;
3. Equipped with a mechanical mixing system, production operations are now mechanized and conducted continuously—simply by replenishing materials promptly, you can produce high-quality slurry as required.Terms of Use:
The loess and lime powder used should be screened and filtered to ensure they are free of particles and impurities.
Product Applications
Primarily used in underground coal mine working faces and mining areas where coal spontaneous combustion poses a significant risk, this fire-prevention and extinguishing equipment is designed to spray slurry-like materials—such as water-based muds, fly ash slurries, lime suspensions, and chemical coagulant gels—as well as higher-viscosity liquids and concentrated substances containing organic impurities and solid particles. By efficiently absorbing heat from oxidizing coal masses, it effectively inhibits coal oxidation, seals off air leakage pathways, and ultimately achieves both fire prevention and suppression.
Main technical specifications
Project Unit ZHJ-200/1.2 ZHJ-130/1.2 ZHJ-80/1.2 Traffic L/min 200 130 80 Pressure MPa 1.2 1.2 1.2 Grouting pump power kW 5.5 Stirring power kW 3.0 × 2 Voltage V 660/1140 Volume L 500 × 2 Device outlet KJ 51 Dimensions mm 3500 x 1200 x 1900 Weight KG 1700 
Main technical specifications
Project Unit ZHJ-300/1.8 ZHJ-200/4 ZHJ-200/3 ZHJ-167/3 ZHJ-100/5 Traffic L/min 300 200 200 167 100 Pressure MPa 1.8 4 3 3 5 Grouting pump power kW 15 15 15 15 15 Stirring power kW 3.0 × 2 Voltage V 660/1140 Volume L 500 × 2 Device outlet KJ 51 Dimensions mm 3500 x 1200 x 1900 Weight KG 2300 1700
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Address: Hulan District, Harbin City, Heilongjiang Province, Victory Street
Contact Information:+86 400-015-0451
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