The dust-containing air enters the box directly from base face of lower box and is filtered through a filtering sleeve and then become purified air, and then discharged from the air outlet, the dust is deposited on the outer surface of filtering sleeve. The dust shall be removed when it is too much deposited. High-pressure air flow will trigger the air jet of each solenoid valve in order as designed through impulse control instrument when removing dust, and then enters the filtering sleeve through jet orifice; the filtering sleeve will expand sharply for an instant, which will shake off the dust deposited on the outer surface of filtering sleeve, which will enter into the original container, the periodical dust removal by impulse air jet makes the filtering sleeve work under effective condition to ensure the dust collection system work normally.
Operating principle and features of main components
Upper box
The upper box in
feed machine is a component for filtering, removing the dust and collecting the filtered clean air, completed with an air outlet at side, and includes an air jet device in it. The upper box is mainly composed of upper box frame, filtering device and air jet dust cleaning system.
Upper box frame
The upper box frame is used for separating the dust-containing air and cleaned air, and supporting the filtering sleeve device, air pocket, fan and spray rod.
Filtering device
The filtering device is a critical working component for dust filtering, composed of filtering sleeves and frameworks. The filtering sleeves are covered on the filtering sleeve frameworks, the curled edge of the sleeve is leveled to be plastered on the lower base surface of the sleeve frame of the filtering sleeve; insert the filtering sleeve into the kidney hole of the bearing plate, the curled edge of the sleeve is pressed on the bearing plate by sleeve framework, and then the interface surface of sleeve framework is pressed by the latch capping, so as to fix the filtering sleeve on the bearing plate of box, and the curled edge of the sleeve will play a role of sealing. When filtering the dust-containing air, the dust is stopped at the outer surface of filtering sleeve, the purified air enters into the internal space of filtering sleeve and then enters into upper box through opening of the filtering sleeve, discharged from the air outlet after collecting. The dust stopped at outside of filtering sleeve will be collected for reuse after a period of collecting.
Air jet dust cleaning system
Air jet dust cleaning system on the
feed machinery is used for dust discharging to ensure a normal and effective filtering capability of the filtering sleeves. The system is composed of a impulse control instrument, an solenoid valve, an air pocket and an air jet device.
The impulse control instrument is a main control device for air jet and dust discharging system of the dust collector, and completed with imported digital integrated circuits, which is characterized by stability and reliability, strong interference resistance, long service life and convenient adjustment. Correct setting of impulse width and impulse interval is a key factor for normal work of the dust removal system.
Lower box
The lower box is a component for filtering the dust-containing air, and its top is connected with upper box, and equipped with a filtering sleeve device. An observation window is provided on box and the dust deposited on filtering sleeve can be observed from observation window. The box can be removed in practice and the upstream equipment can be set directly in the container.
Top cover
The top cover is used for sealing the upper box to ensure the pressure parts in upper box. The top cover is light and taken down easily. Open the top cover to check or replace the air jet device and filtering sleeve.
