AUTOMATION OF CONCRETE MIXING UNITS |
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Contact:
Research laboratory of industrial automation,
phones: (+375 17) 2314620, 2966720
fax: (+375 17) 2966831
e-mail:
www.nilap.com
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Belarusian National Technical University
Address: 65, Nezalejnastsi ave., 220013, Minsk,
Republic of Belarus
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Purpose and area of application
Modernization is an installation of weigh measuring strain-gauge systems on each type of batchers, which are included in a unit, and joining all of the batchers in a local network with the help of the multipurpose controller of operator. Thus controllers KTU-2 carry out not only weighing, but also batching control. And the controller of operator allows to define a formula of concrete mixes and give out to each controller KTU-2 the task for dispatching of each component.
Description The structure of strain-gauge batchers of the concrete-mixing units includes the following devices:
- batcher of macadam or sand (from 1 up to 3 pieces), each is applied for 2 components of batching;
- cement batcher (2 components);
- batcher of water and chemical additives;
- batcher of precise chemical additives (limit of batching up to 20 kg).
If it is necessary to set a batcher of pigment.
If it is necessary PC can be used instead of an operator's console.
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Batcher of chemical additives

Batcher of sand (macadam)
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Technical characteristics
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Parameter |
Type of balance applied for batching |
Sand (macadam)
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Cement
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Water and chemical additives
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Precise chemical additives
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Maximal limit of batching, kg |
400 / 1000 (1000 / 2000) |
300 / 500 |
6 / 10 |
Minimal limit of batching, kg |
100 (250) |
50 |
0,15 |
Discontinuity of reading (d) and scale verifying factor (e), kg |
0,2 / 0,5 (0,5 / 1) |
0,1 / 0,2 |
0,002 / 0,005 |
Error of batching |
±1 |
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Structure scheme

Scheme of computer regulation
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phone: (+ 375 17) 2328342
fax: (+375 17) 2327183
e-mail: |
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Ministry of Education for the Republic of Belarus |
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