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How do concrete batching plants work?

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• How do concrete batching plants work?

• How do concrete batching plants work?

  concretemixer > 09-06-2022, 09:02 AM

  Before we understand the working or operation of a concrete batch plant.It is important to understand the basic components and structure of a batching plant. We have mobile concrete plants installations in Philippines’s city like: Bulacan, Cavite and Pampanga. It is a machine that combines various ingredients like aggregates, sand, water, cement and additives.These components are first weighed individually and then combined to prepared ready mix concrete. This material prepared is widely used for several types of construction projects.
  
  Since the mixing of individual components is by weight it is possible to alter and change weight of individual materials to prepare different grade or quality of concrete. Some of the grades of concrete for India are as 1:3:6, 1:2:4, 1:1:2 etc. Here we express the proportions of the ingredients of the concrete mix in terms of ratios or parts of cement, fine and coarse aggregates. When we talk about 1:3:6, it defines the ratio or parts of cement, fine and coarse aggregates. Meaning the mix material has one part of cement, three parts of fines and six parts of coarse aggregates. The proportion is by weight.
  
  concrete batching 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.

• RE: How do concrete batching plants work?

  wade > 09-06-2022, 09:03 AM

  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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