Wholesale Coal Mine Series

Mining valves are valves designed for mining environments such as coal mines and metal mines. They have special performance and structure to adapt to the harsh conditions of underground mining operations. The following are some key features and applications of mining valves:
Special materials: Mining valves are usually made of cast iron, cast steel, carbon steel, stainless steel, alloy steel and other materials to resist the influence of corrosive media and harsh environments.
Pressure and temperature range: They are designed with a wide range of nominal pressures PN0.04~64.0Mpa and nominal diameters DN50~DN2000, as well as a service temperature range from -125℃ to 1100℃ to meet the needs of different mines.
Corrosion resistance: Mining valves can withstand corrosive media such as water, oil, steam, coal gas and sulfur-containing gas, strong alkali, concentrated acid, etc.
Diverse driving methods: The driving methods of mining valves include manual, pneumatic, electric, hydraulic, gear transmission, etc. to adapt to different operating environments and needs.
Safety standards: Mining valves must comply with international and national standards such as API, ASTM, MSS, ANSI, CE, JIS, ISO, GB, JB, HB, etc. to ensure safe use.
Widely used: They are widely used in industries such as petroleum, chemical, mining, natural gas, metallurgy, and electricity, especially in coal mines to control the on and off of water pipelines and adjust the flow of media.
Special purpose valves: For example, air bag pressure relief valves are mainly used in air compressor systems to play a role in safety and protection.
Flameproof valves: For flammable and explosive environments such as coal mines, mining valves may need to have flameproof functions to ensure safe operation.
Electric valves: Mining electric valves can be remotely controlled and are suitable for mining environments that require automated control.
Maintenance and inspection: Mining valves require regular inspection and maintenance to ensure their normal operation and long life.
The design and manufacture of mining valves take into account the challenges unique to the mining industry, such as desirable temperatures, corrosive media, and potential explosion risks, ensuring the reliability and safety of mining operations.

Mining electric actuators are electric actuators designed for coal mines and other mining environments. They have explosion-proof features to ensure safe use in flammable and explosive environments. Here are some key features of mining electric actuators:
Explosion-proof design: Mining electric actuators usually have explosion-proof certification, such as the MA mark, to ensure safe use in potentially flammable gas environments such as coal mines.
Flameproof type: Some actuators adopt a flameproof design, which prevents internal sparks or heat from being transferred to the external environment, thereby reducing the risk of explosion.
Multi-turn and part-turn: Mining electric actuators can be multi-turn or part-turn types, suitable for different types of valves, such as gate valves, butterfly valves, ball valves, etc.
Intelligent control: Some modern mining electric actuators have intelligent functions, and parameter settings can be completed through display screens, knobs and remote controls for non-intrusive operation.
Special applications: Some mining electric actuators are designed for specific mining applications, such as electric butterfly valves on mining fans, which are small and light, easy to disassemble and repair.
Materials and protection: Considering the particularity of the mining environment, the materials and protection level of mining electric actuators are designed to withstand harsh working conditions, such as high humidity, dust, corrosive media, etc.
Wide application: Mining electric actuators are widely used in industries such as power, metallurgy, petroleum, chemical industry, papermaking, sewage treatment, etc., especially in applications such as coal mine fire protection, dust reduction, and underground central water systems.
Easy operation: The design focuses on user experience, making operation easy and easy to achieve remote control and automated management of valves.
Safety standards: Follow strict safety standards and certifications to ensure reliability and safety in special environments such as mines.
Maintenance and inspection: Although mining electric actuators are designed to be rugged and durable, they still need to be maintained and inspected regularly to ensure their long-term stable operation.
The design and manufacture of mining electric actuators take into account the challenges unique to the mining industry, such as desirable environments, potential explosion risks, and automation requirements, ensuring the reliability and safety of mining operations.

Mining control boxes are control devices designed for mining environments such as coal mines. They have explosion-proof, dust-proof, and waterproof features to adapt to the special working environment under the mine. The following are some key features of mining control boxes:
Explosion-proof features: Mining control boxes usually have explosion-proof certification, such as Exd II BT4 (CT4), which is suitable for underground coal mines or ground gas explosion environments.
Intrinsically safe design: Some control boxes adopt intrinsically safe design, using intrinsically safe PLC controllers, temperature acquisition modules, 4-20mA analog acquisition modules, and communication modules to achieve automatic control and data acquisition of equipment.
PLC control: Mining control boxes may have built-in embedded computers and PLCs to achieve automatic control of various equipment on the coal mining face.
Modular design: The control box may adopt a modular design, which is easy to configure and expand, and has flexible logical control methods, which can be implemented through software programming.
Display and monitoring: Some control boxes have Chinese LCD displays, which are intuitive and easy to monitor and debug on site.
Data transmission: Mining control boxes may have data transmission functions, which can transmit underground field data to ground monitoring industrial computers and receive control instructions.
Flameproof and intrinsically safe type: Some control boxes are designed as flameproof and intrinsically safe type, suitable for dangerous places with gas and coal dust explosion in coal mines.
Environmental adaptability: Mining control boxes are designed to adapt to the ambient temperature, humidity, atmospheric pressure and places without significant vibration in coal mines.
Electrical protection: The input and output circuits inside the control box have reliable isolation measures and electrical protection to ensure the reliable operation of the controller and the personal safety of the operator.
Wide application: Mining control boxes are not only suitable for underground coal mines, but also can be used for monitoring and control devices in harsh environments such as metallurgical mines, open-pit coal mines, ports and docks, coal preparation plants, and power plants.
The design and manufacture of mining control boxes take into account the special needs of the mining environment and provide safe and reliable control solutions.