Concrete mixing stationconsists of material feed storage systems, material weighing system, materialhandling system, mixing system, powder storage systems, powder conveying systems,powder metering systems, water and additive metering systems and controlsystems and other five major systems and other ancillary facilities components. Mixer stirring theirway into forced mixing and self-loading mixing. Compulsory mixer is mixingstation at home and abroad mainstream use, it can be stirred liquidity, semi-rigidand rigid and other dry concrete. Since the fall mixing console main stirring fluidityconcrete, rarely used in the mixing station. Compulsory mixer accordingto the spindle structure is divided into a planetary mixer, single horizontalshaft mixer and twin-shaft mixer. The integrated use of performance especiallyin the twin-shaft compulsory mixer is best. Material weighingsystem is affecting the quality of concrete mixing station concrete and concreteproduction cost of key components, mainly divided into aggregate weighing, weighingpowder and liquid weighing three parts. Under normal circumstances, 20 cubicmeters per hour or less mixing station superposition weighing methods, namely aggregates(sand, stone) with a scale, a scale with cement and fly ash, water and liquid additivewere weighed and then put into the water, said liquid additive pre-mixed infighting.In more than 50 cubic meters per hour, mixing station, said the use of various materialsweighing independent manner, all have adopted electronic weighing scales and computercontrol. Aggregate weighing accuracy of ± 2%, cement, powder, water and admixturesweighing accuracy reached ± 1%.
|