Control System for Stabilized Soil Mixing Plant / HG2000 Control System for Stabilized Soil Mixing Plant

Application

  Automatically control the entire production process of stabilized soil and realize production data management of stabilized soil.

  System composition

  The system adopts a distributed control mode, which can realize the coexistence of three levels of control: computer centralized management control → independent control of batching controller → direct control of frequency converter, so as to prevent the production from being affected by the failure of batching management system. Thus, the stability and reliability of the whole system are guaranteed to the greatest extent. The main equipment part is mainly composed of powder distribution system, aggregate distribution system, aggregate belt, mixing device and finished material conveying and storage system. There is one set of powder distribution system and five sets of aggregate distribution system. In addition, there are water supply system, air supply equipment and feeding device.

  Features

  The whole system has full control functions such as automatic batching, continuous mixing, manual unloading and loading. The system also has manual control function and on-site machine-side safety control.

    1. Aggregate batching: It can be composed of 4-6 channel variable frequency speed control belt scales, and the feed can be adjusted by the frequency converter controlled by the HG40-2005 or HG40-2000Y belt scale controller.

    2. Powder batching: A continuous loss-in-weight weigher or electronic screw scale is used for metering, and the control instrument is an HG40-SG loss-in-weight weigher controller. The loss-in-weight weigher is a new type of quantitative feeder that uses static metering to measure dynamic flow rate, and its metering accuracy is basically close to that of a static weigher.

    3. Water addition control can be realized, the water addition is measured by the flow meter and adjusted by the set value.

    4. The start-up sequence and delay time of each batching scale can be selected according to the process flow and equipment layout to ensure that the materials enter the mixer at the same time, reduce the mixing time and improve the mixing efficiency.

    5. The host computer has the functions of process flow animation display and parameter modification.

    6. The software has the functions of formula library management, historical data storage, automatic batch report, daily report, monthly report, annual report statistics and printing.

    7. The host computer software sets two levels of password protection: operation password and important parameter modification password.

    8.SM40-CW batching manager has batching start and stop timing control, scale group definition, recipe management, quantitative management, and micro printing management.

  Technical indicators

    1. System application scope: 300-600 series stabilized soil mixing system

    2. Accuracy of aggregate, soil, lime and fly ash: closed-loop control is better than 1%, open-loop control is better than 2%, and volumetric control is better than 3%

    3. Cement metering accuracy: ≤1%

    4. Power supply for instrument and host computer: AC220V±15% 50Hz 1000W

    5. Ambient temperature: -10～55℃ Relative humidity: <90%RH (no condensation)