DEVICE FOR AUTOMATIC CONTROL OF ELECTRICAL FILTER Russian patent published in 2010 - IPC B03C3/68 

FIELD: process engineering.

SUBSTANCE: invention relates to power engineering. Proposed device comprises hopper, electrode shaking actuators, connected to level metre, transport pipeline, air feed pipeline, surplus pressure source with receiver, electromagnetic valve, control pulse generator and extra receiver with electrically driven valve and tube to feed air to transport pipeline communicated with ash collector hoppers. Every section of ash collector hopper additionally comprises pressure tube for every gate, transition branch pipe with saddle on outlet opening, second gate with air feed pipe, air pipeline with its outlet end communicated with inlet ends of the tubes feeding air to gates of two cases of every section and with its inlet communicated with distributing tube. Inlet branch pipe communicates with transport pipeline via casing chambers, transition branch pipes, and second casing. Pressure pipe is secured on every gate on the surface of adjacent air feed pipe to embrace air feed pipe outlet end when gate displaces. In very section inlet branch pipe saddle is arranged vertically, while that of transition branch pipe is arranged horizontally. Pipes feeding air to transport pipeline and its faces represent accelerating sections wherein shock wave front is formed. Level gage outlet is connected to pulse generator input. First output of the latter is connected with first receiver electrically driven valve and its second output is connected with extra receiver electrically driven valve. Pipe feeding air from extra receiver electrically driven valve to transport pipeline is connected with transport pipeline downstream of connection between transport pipeline with second casing.

EFFECT: larger range of dust transfer from hopper, electric power savings and higher reliability.

1 cl, 1 dwg