Concrete Batching Plant System Constitutes
1, The 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 conveying screw conveyor is widely used way of transportation, there are large small concrete batching plant scraper conveyor and pneumatic conveying of. The advantages of the screw conveyor is of simple structure, low cost and reliable use.
Liquid conveying: mainly refers to water and liquid admixtures, they were delivered by the pump.
2, The metering system is a key component affecting the quality of concrete and concrete production costs , concrete mixing, divided into aggregate weighing, weighing powder and liquid weighing three parts. Under normal circumstances, less than 20 cubic meters per hour, weigh batching plant using overlay mode, concrete mixing, that aggregate ( sand and stone ) with a scale, a scale with cement and fly ash, water and liquid plus agents 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%, cement, powder, water and admixtures are up weighing accuracy ≤ 1%.
3, The control of the central nervous system mixing station equipment package. Belt conveyor type concrete mixing plant 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, The 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.
