Equipment introduction:
This is a mechanical equipment for raw material fine processing, focusing on mixing and batching, homogenizing, pressing and plasticizing the crushed clay, shale, coal gangue, fly ash and others. Besides, it helps with material purification, filtration and impurities removal to avoid any damages made to extruder. Having the advantages of compact structure, small space occupancy, easy operation and maintenance, it has become the essential equipment to make high-quality hollow bricks.

Core Equipment for Raw Material Pre-processing
In the clay sintered brick production line, the rotary screen feeder is positioned between the raw material crushing system and the mixing/extrusion section, performing the following critical functions:
Screening & Impurity Removal:
Filters out stones, plant roots, and other impurities from clay through a rotating screen (typical aperture: 3-10mm), preventing damage to downstream equipment (e.g., vacuum extruder screws).
Uniform Feeding:
Delivers clay at a consistent flow rate to the next process via an adjustable-speed rotating disc (speed: 2-15 rpm), ensuring stable input for mixers or extruders.
Moisture Regulation:
Advanced models integrate spray systems to uniformly adjust water content during feeding (±2% moisture control range).

Equipment Specification

Impact on Finished Product Quality
Dimensional Consistency:
The uniform particle size of screened raw materials reduces brick cracking (can decrease defect rate by 3-5%).
Combustion Efficiency:
Purified clay enables more uniform kiln sintering (reducing energy consumption by 8-10%).
Equipment Protection:
Prevents large hard particles from entering the extruder, extending screw life by 2-3 times.

Typical Clay Brick Production Line Example:
[Raw Material Yard] → [Primary Crusher] → Rotary Screen Feeder → [Twin-Shaft Mixer] → [Vacuum Extruder] → [Brick Cutter]