PNEUMATIC SYSTEM FOR TRANSPORTATION OF BULK MATERIALS AND AIR CONVEYOR FOR USAGE IN THE SAME SYSTEM Russian patent published in 2006 - IPC B65G53/20 

FIELD: pneumatic equipment used in enterprises of construction, chemical and metallurgical industry, as well as in enterprises for storage and processing of grain and other powdered or fine granulated material.

SUBSTANCE: pneumatic transportation system for transportation of bulk material has feeding hopper and air conveyor connected to satellite type compressed air pipeline, accumulation hopper, and consumption hopper. Air conveyor connects said hoppers and consists of sections designed so as to create pressure difference therein and provide for individual regulation of material velocity in each of said sections. Each of air conveyor sections has tube with air chamber and unit of sleeve-type filters with air release valve adapted for individual regulation thereof. Air chamber for creating fluidized bed of material to be transported is connected with compressed air satellite type pipeline through adjustment valve and consists of plated spring for stretching of separating fabric, and end stoppers. Plated spring and separating fabric are adapted to be connected by means of profiled edges thereof which are joined to form lock connection.

EFFECT: increased efficiency in transportation of material at regulated velocity in upward direction along inclined surface to different height marks.

4 cl, 4 dwg