How does a concrete batch plant work?


Concrete batch plant can be divided into read mixer concrete plants and central mix plant, which include gravel feed, powder(cement, fly ash, bulking agents, etc.) to feed, water and feed additives, transmission and storage stirred their workflow.


Concrete batch plant is a concrete machine to produce concrete products, mainly produce concrete materials. The batching concrete is a process whereby cement is mixed with coarse aggregate(graded crush) and fine aggregate (sand particularly pit sand) as well as with water. Concrete batch plants are devices used to mix the various ingredients to form concrete.

How does a concrete batch plant work?
Aggregate feeding
Powder feeding (fly ash, cement and expanding agent)
Water and admixture for mixing the materials
Conveyance and storage
When the control system of mixer is connected to an electricity source, the operation interface of the man-machine interaction will appear and system will begin to process initialization which includes the formula number, concrete slump, concrete grade and productivity.
Each silo and weighing hopper is tested according to weighing system. Its control system will output the signal of the amount of material to prompt the operator to decide whether to start the control program or not.
The belt conveyor is initiated to transmit the aggregate to the weighing hopper; the valve of the fly ash and cement tank should be opened and the screw conveyor and motor initiated to transmit them into the weighing hopper;
The control valve of the water sump and admixture sump needs to be opened to make water and admixture flow into the weighing hopper.
Once the weight of all material types meets the needs of specific amounts, the door of the weighing hopper is opened automatically.
The materials will then be mixed by a concrete mixer. Once the setting time is over, the loading door of the concrete mixer opens and the concrete flows into a concrete mixer truck.
This process is conducted very carefully since concrete must not segregate and also because the concrete must be ready and transported and then used before its preliminary setting time which is between 30-45 minutes.In some countries, this is carried out by a mobile concrete batching machine.

Working principle of concrete batching plant
1. The respective cylinders, control valves and motors by concrete mixing processes required to run each cylinder, control valve and the motor must be accurate, stable and reliable.
2. The control system includes automatic or manual mode, and the relationship between each other is independent and restrict each other.
3. The system has good anti-jamming capability and improve the self-protection alarm.
4. Communication with the computer, it can display system status, fault alarm.

Concrete batch plant can be installed with pan mixers, planetary mixers and twin shaft mixer.

Relative Articles:
Maintenance safety, how should the concrete equipment operator do?
Planetary concrete mixers
self-loading concrete truck mixers
What precautions should the concrete batch plant operator do?
What do we should do before operating concrete mixer?

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