Production of Explosion proof Electric Gate Valve for Mining in Inner Mongolia

Mining explosion-proof electric gate valves are suitable for flammable and explosive environments, with high safety factors, strong operational functions, and stable performance. There are two types of explosion-proof products, dI and dIIBT4. dI is suitable for non mining working faces in coal mines; DIIBT4 is used in factories and is suitable for explosive gas mixtures in IIA and IIB level T1 to T4 environments. The adjustable explosion-proof electric brake for mining has automatic phase sequence correction function, setting function, LCD Chinese display function, on-site control jog/self hold selection function, motor brake function, contact mode selection function, remote dual line control function, adjustable dead zone function, ESD override protection function, and bus communication function.The explosion-proof electric gate valve regulating module for coal mines can receive and output a standard signal of 420ma. The electrical components are installed on a reversible board for adjusting torque control, stroke controller, and opening mechanism. There are three buttons on the button box, with the middle being the on-site/remote control conversion button. The left side is the on-site valve closing button, and the right side is the on-site valve opening button. Covering the button box is for remote control, and opening the cover is for on-site operation.

1. The valve adopts pressure self tightening sealing or valve body and valve cover gasket sealing structure, which is trustworthy! Safe and reliable use. 2. The valve disc adopts a double gate plate with a universal top structure in the middle, which can automatically adjust the degree of fit between the valve disc and the sealing surface of the valve seat to ensure the sealing of the valve. At the same time, this structure is easy to maintain, saves costs, and has good interchangeability of valve discs. 3. The sealing surface of the valve disc and seat is made of cobalt chromium tungsten hard alloy by plasma spray welding. The sealing surface has high hardness, wear resistance, abrasion resistance, and long service life. 4. The valve stem is made of nitriding steel, with surface nitriding treatment, high hardness, scratch resistance, corrosion resistance, and long service life. 5. The electric device is equipped with a torque control mechanism, on-site operating mechanism, and manual/electric switching mechanism. In addition to on-site operation, remote operation, PLC control, and intelligent control of 420mA current input and output can also be performed. 6. Manual valves are opened by a manual mechanism or a handwheel upon impact. Reduce valve operating force. 7. Valves can be installed at any position in the pipeline, and carbon steel or alloy steel valves can be selected based on the medium and its temperature. When installing and debugging for the first time, the valve must be manually opened to about half of the position to avoid damage to the valve or electrical components caused by reverse motor phase sequence connection.

1. Full Chinese display: The integrated multi turn electric actuator window adopts high-definition LCD digital, full Chinese and symbol LCD display, making operation more convenient and intuitive.

2. Automatic phase sequence correction: The rotation direction of the actuator can be freely set, and normal operation can also be achieved by automatically correcting the phase sequence of the power supply, thereby ensuring the stability and reliability of the equipment.

3. Phase loss protection: It has the function of power phase loss protection, effectively protecting the power circuit, ensuring that the equipment will not be damaged in a phase loss state, and extending the service life of the equipment.

4. Control mode: The conventional remote control signal of the regulating explosion-proof electric gate valve for mining uses 4-20mA analog signal control, while providing 4-20mA signal feedback (special quantity control can be provided), achieving electrical isolation between remote control signals and feedback signals, and improving the control accuracy and stability of the equipment.

5. Prohibited movement delay protection: This function can avoid or reduce the reaction force borne by mechanical parts due to inertia. This protection function is applicable to both on-site and remote control modes, enhancing the reliability and safety of the equipment.

6. Electronic interlock protection: When a command is being executed and remains valid, and another reverse control command is applied (i.e. both commands exist and are valid), the electric actuator will stop executing the current command and wait until the next command is executed to ensure the safety and stability of the device.

7. Instantaneous over torque protection: When the opening or closing torque is instantly pushed open, the valve will stop and not move. Even if the torque switch is instantly pushed open and closed, the valve will not move. Only a reverse action can release the over torque protection, effectively avoiding damage to the equipment caused by overload.

8. On site remote control switching: On site remote control can be freely switched, making user debugging and maintenance more convenient and efficient, and improving the maintainability and operability of the equipment.