Mining electric valve

1Mining electric valveIntroduction

Mining explosion-proof electric gate valves are mainly used in coal mines and underground. Generally, this type of explosion-proof mining electric gate valve comes with a coal safety electric gate valve. The power supply voltage of the mining explosion-proof electric gate valve is 380V and 660V, and this type of electric gate valve must have a coal safety certificate before entering the mine. Features of the electric device: It has mining and coal safety certificates, and the explosion-proof protection level is IP68. Suitable for flammable and explosive environments, with high safety factor, strong operational function, 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 performance of this product meets the requirements of JB/T8528-1997<Technical Conditions for Ordinary Valve Electric Devices>. The performance of the explosion-proof type meets the requirements of GB3836.1-2000<General Requirements for Explosion proof Electrical Equipment for Explosive Environments>and JB/T8529-1997<Technical Conditions for Explosion proof Valve Electric Devices>. And it has been verified by the National Explosion proof Electrical Product Testing Center and obtained an explosion-proof certificate. The integral electrical installation is derived from the Z ordinary type, adding many electrical and electronic components. The integral ordinary electrical part mainly consists of multifunctional modules MK1, remote control modules MK2, button box indicator lights, opening meters, contactors, etc. The multifunctional module MK1 is composed of three parts: phase recognizer XS, contactor interlock protector HB, and DC power supply DC. The remote module MK2 consists of four solid-state relays and three dip switches.

IIMining electric valvefeature

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 4-20mA 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. ⑧ 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.

Explosion proof mining electric gate valve, equipped with coal safety electric gate valve, explosion-proof mining electric gate valve, mining explosion-proof electric gate valve, MZ941H-100C is mainly used in coal mines and underground. Generally, this type of explosion-proof mining electric gate valve, equipped with coal safety electric gate valve, has a power supply voltage of 380V and 660V. This type of electric gate valve must have a coal safety certificate before entering the mine.