Mining flameproof valve electric device is suitable for flammable and explosive occasions, high safety coefficient, strong operation function, stable performance, etc.Applicable to the environment as a type IIA, IIB level T1 ~ T4 group of explosive gas mixture.

 Mining flameproof electric device for IP55 protection grade.Suitable for flammable and explosive occasions, high safety coefficient, strong operation function, stable performance, etc.Explosion-proof products have both dI and dIIBT4, dI is applicable to coal mine of mining coal face;DIIBT4 used for factory, applicable to the environment as a type IIA, IIB level T1 ~ T4 group of explosive gas mixture.The performance of this product conform to JB/T8528-1997 technical conditions > < type valve electric actuator.Explosion-proof performance accords with GB3836.1-2000 "explosive environment with explosion-proof electrical equipment general requirement > and JB/T8529-1997 technical conditions > < flameproof valve electric actuator.And the national explosion-proof electrical products testing center testing, made explosion-proof certification.Integral type denso is derived based on normal, increase a lot of electrical and electronic components, the overall normal electrical part is mainly composed of multifunctional module MK1 remote control module of the opening of the MK2 button box lamp, table, contactor, etc.Multi-function module MK1 again by phase discriminator XS, contactor, HB and interlock protection DC power supply DC of three parts.Remote module MK2 by four of solid state relay and three dial the code switch.Overall external regulation of electric part consists of regulating module TMK, contactor, etc.Line of 220 v, 50 hz (special order 60 hz);Remote control is 24 VDC.Adjusting module can receive 4 ~ 20 ma standard signal and output.Electrical components installed on a reversible board, so that the torque control, controller, the opening mechanism to adjust.Button box, there are three buttons on the middle of the scene/remote control switch button, the left the scene shut valve button, the right to live open valve button and cover for the remote control button box, open the lid for site operation.Schedule control mechanism, using decimal counter principle, high control precision.For the full series of general parts and its structure, its working principle is: by active pinion driven by gear bevel gear box of a pair of size (Z = 8), drive the counter work again.If the counter according to the location of the valve open and close is set, when the counter with the output shaft rotate to adjust the good location (laps) in advance, the CAM will rotate 90 °, forcing the micro switch action, to cut off the motor power supply, make the motor stalling, so as to realize control of the electric actuator stroke (circle)

Jiangsu lanfa general equipment co., LTD

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