1, the aggregate supply system , aggregate supply system consists of three parts . Aggregate transport : Currently mixing station conveyor hopper conveyor and conveyor belts in two ways. Advantages Hopper upgrade is a small footprint, simple structure. Advantages of the transport distance belt conveyor , high efficiency , low failure rate . Belt conveyor is mainly used to aggregate temporary positions mixing station , thereby improving productivity mixing station . Powder delivery : Concrete available powder is mainly cement, fly ash and slag . Currently powder is widely used way of conveying screw conveyor transport , stabilized soil mixing station, twin-shaft concrete mixer mixing floor scraper conveyor and pneumatic conveying of . The advantages of the screw conveyor is of simple structure, low cost and reliable use. Conveying fluid , mainly referring to water and liquid admixtures, they were delivered by the pump .
2 , mixing system, mixing system forced their way into stir stir stir and self-loading . Compulsory mixer is used for mixing station mainstream home and abroad , concrete mixing plant , concrete mixing station , it can stir mobility, semi- rigid and rigid variety of dry concrete . Since the fall mixing console major stir fluidity concrete , there is little use in mixing station . Compulsory mixer form of the structure into the spindle planetary mixer , single horizontal shaft mixers and twin-shaft mixer . The integrated use of performance especially in the twin-shaft compulsory mixer is best.
3 , the control system , the control system of the central nervous mixing station equipment package . Control system according to the different requirements of users and the size of the mixing station and have different functions and preparation, construction of small mixing plant control system simpler site available under normal circumstances , and the system is relatively large mixing station complex .
4 , measurement systems , measurement systems are key components affecting the quality of concrete and concrete concrete mixer manufacturers, mainly divided into aggregate weighing , weighing powder and liquid weighing three parts. Under normal circumstances, less than 20 cubic meters per hour, weigh batching superposition way that aggregate ( sand and stone ) with a scale, a scale with cement and fly ash , water and liquid admixtures were weighed , concrete mixing , and then put into the water , said liquid additive premixed infighting . And at 50 cubic meters per hour, mixing station , the use of all known materials weighing independent way , all have adopted electronic weighing scales and computer control . Aggregate weighing accuracy ≤ 2%, stabilized soil mixing station , weighing accuracy cement , powder , water and admixtures are up to ≤ 1%.