Coal Mine Underground Mobile Explosion-Proof Toilet

The coal mine underground mobile explosion-proof toilet is a movable, waterless-flush, and enclosed sanitary facility specifically designed for the harsh environment of coal mine underground. Its core purpose is to solve the toilet problems for underground workers and ensure safe production and occupational health.

Core Positioning and Functions

1. Safety and Compliance: There are risks of gas and coal dust explosions in coal mine underground. The mobile explosion-proof toilet must pass the coal mine safety certification (MA) and meet the GB3836 explosion-proof standard. Its design eliminates the safety hazards caused by electrical sparks or open flames in traditional toilets, ensuring safe use in explosive environments.
2. Waterless and Powerless Adaptation: The underground environment is complex, and it is difficult to popularize water supply and drainage systems and external power supplies. This toilet adopts a waterless-flush design and does not require an external power supply. It processes excrement through mechanical or biological degradation technologies, adapting to the limitations of underground pipe networks and power supply conditions.
3. Mobile Flexibility: The underground working face changes dynamically with the mining progress, and the toilet needs to be deployed quickly. Its movable feature supports rapid installation in areas such as fully-mechanized mining faces, heading faces, refuge chambers, and rescue capsules, meeting the needs of temporary or long-term use.
4. Environmental Protection and Hygiene: The enclosed structure effectively isolates odors and prevents secondary pollution caused by excrement leakage. Some models use biodegradable plastic bags or biological degradation technologies, meeting the requirements of green mine construction and reducing damage to the underground environment.

Mainstream Types and Principles

The mechanical packing type is currently the most commonly used type, especially suitable for enclosed spaces such as rescue capsules and refuge chambers. Its working principle is as follows:

• Foot-Pedal Mechanical Transmission: The user triggers the mechanical device by stepping on the pedal, driving the gear, connecting rod, and packing cam system.
• Automatic Sealed Packing: After each use, the excrement is automatically sealed by a biodegradable plastic bag, isolating odors and preventing leakage.
• Structural Composition: It includes a 304 stainless steel shell (corrosion-resistant), an excrement accumulation box (for storing excrement), a foot-pedal connecting rod (for power transmission), gear transmission (for precise control), a packing cam (the core of sealing), and a bag storage system (for continuous bag supply).
  Features: Pure mechanical structure, waterless and powerless, odorless, easy to clean, and with high explosion-proof safety performance.

Price Reference

The quotations from different merchants vary greatly, depending on factors such as material, function, and specification:

• The price of the coal mine underground mobile toilet from Shandong Huakuang High-Tech Development Co., Ltd. starts at 1000.00 yuan.
• The price of the stainless steel automatic packing toilet for rescue capsules and tunnels from Jining Wanda Machinery Equipment Co., Ltd. is 1980.0 yuan.
• The price of the refuge chamber excrement collector from Shandong Shunhe Industrial and Mining Equipment Co., Ltd. and Shandong Juren Machinery Co., Ltd. is 50.0 yuan (possibly a simple model or accessory).

When making a purchase, it is necessary to comprehensively evaluate based on the actual underground needs, budget, and explosion-proof certification status.