Welding smoke purifier reverse blowing slag fly mechanism

Welding smoke purifier reverse blowing qing qing fly of fly body welding smoke purifier filter mechanism has the following several forms. Respectively and the structure of the different counter blowing dust. （ 1) Three-way reversing valve three-way reversing valve has three import and export, dust filter bag room during normal dust collector filter gases, the mouthpiece of the mouth to vent closed. Counter blowing ash removal, the reverse blowing mouth open, vent closed and blow air to reverse blowing dust filter bag house filter bag. Three-way valve is the most common counter blowing flying institutional form. This valve is characterized by reasonable structure, closely without air leakage ( Air leakage rate is less than 1%) , each room air distribution uniformity. Drive for cylinder, less use electric putter. （ 2) The primary and secondary baffle valve flap valve is actually a pneumatic light butterfly valve, pneumatic butterfly valve full schedule 1 ~ 3 s, and electric butterfly valve action takes about 5 s so less used. Using a baffle and secondary baffle valves reverse blowing bag-type duster of qing qing fly ash work of another form. Filter a filter bag house dust collector work, a valve is opened, the secondary valve closed; Blowing ash removal, a valve is closed, the secondary valve is opened, the equivalent of the three-way reversing valve in two. The structure of the primary and secondary baffle valve valve shuts rigor, valve leakage rate is less than 1%. （ 3) Rotary switch valve rotary switch valve by valve body, rotary spray torch, slewing mechanism, cycloidal pinwheel reducer, brake, sealing ring and travel switch, etc. When welding chamber blow smoke dust catcher, rotary spray torch device in the role of control device, according to the program rotation and stay in soot cleaning bag room air duct. The filter bag is in not filtering state, at the same time counter blowing air reverse through the cloth bag, dust will fall. The program in turn, until all the filter bag dust, rotary spray torch automatic stay at zero, filter chamber filter is resumed. Because the rotary switch valve working fluid resistance than three-way reversing valve and damper valve, so the dust collector system design must consider this part of the resistance, or you will clear grey.

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