PLANT FOR PRODUCTION OF DRY CONSTRUCTION MIX BASED ON EXPANDED PERLITE Russian patent published in 2013 - IPC B28C9/02 

FIELD: field: process engineering.

SUBSTANCE: invention relates to production of construction materials, particularly, to production of dry construction mixes with expanded perlite directly in the field. Proposed plant comprises inert material dispensing unit with inert material preparation assy, inert material feed bin and transfer means, binder dispensing unit with the bin. The latter comprises screw feeder, mixer and prepared mix discharger. The latter comprises filler. Inert material (perlite) preparation assy comprises inert material bin, screw conveyor, perlite preheating bin, vertical gas kiln to discharge expanded perlite with vertical shaft equipped with compensation coupling communicating said shaft with discharge pipeline. Turbo-cyclone has burner arranged at kiln bottom and equipped with spark igniter, gas and primary air feed lines, stock loading chute arranged level with working chamber top part, secondary tangentially swirled air feed pipe communicated with stock feed chute. Note here that kiln shaft working chamber has dual wall to make stock and air feed channel while mixer comprises extra dispensing service bin. Note here that inert material bin is equipped with air fine filter. Besides, dispensing service bin is communicated with dispenser of minor additives and mixer, via automatic rotary shutter.

EFFECT: mechanised continuous process, better heat-, fire- and noise-protection properties.

4 dwg