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Zhengzhou Junhua Machinery Equipment Co.,Ltd

+86-18039359711    +86-18039359711     junhua@junhuamachinery.com

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  3. How does the Concrete mixing plant works...

How does the Concrete mixing plant works

Concrete mixing plant is divided into four parts: gravel feed, powder (cement, fly ash, bulking agents, etc.) to feed, water and feed additives, transmission and storage stirred their workflow shown in Figure 1. , the mixer control system power, into the human – machine dialogue operation interface, system initialization process, including recipe number, grade concrete slump, producers, etc. according to the amount of weight carried on each silo, weighing hoppers. detection, output material or material empty full signal, prompting the operator to determine whether to activate the control program starts stirring sand, stone belt motor fed into the metering hopper; open fly ash, cement tank valve, start the electromechanical screw conveyor ash cement to the metering hopper; open water reservoir and control valves admixture pool water and additives into the metering hopper metered meet the set requirements doo door open metering, mixing the ingredients into the mixer within already started to set. time to open the mixer door, into the concrete mixer had received material.

A concrete plant, also known as a batch plant or batching plant, is a device that combines various ingredients to form concrete.

Some of these inputs include sand, water, aggregate (rocks, gravel, etc.), fly ash, potash, and cement.

A concrete plant can have a variety of parts and accessories, including but not limited to:

1. Mixers (either tilt-up or horizontal or in some cases both), The center of the concrete batching plant is the mixer.

2. cement batchers,

3. aggregate batchers,

4. conveyors,

5. radial stackers,

6. aggregate bins,

7. cement bins,

8. heaters,

9. chillers,

10. cement silos,

11. batch  plant controls,

12. and dust collectors (to minimize environmental  pollution).

Working:

The concrete batch plants can be categorized into 4 parts:

1- Aggregate feeding,

2- Powder feeding (fly  ash, cement and expanding agent),

3- Water and

4- 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 trucks.

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 concraete batching machine.






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