Wiring And Installation Requirements For Asphalt Mixing Plants

Asphalt mixing station is used in the process of highway construction is a more important equipment, in the production, its electrical system work is stable, determines whether the asphalt concrete mixing station can be normal production.

Its installation from a large aspect, the content mainly includes the basic production, mechanical metal structure installation, electrical system installation and commissioning, asphalt heating and pipe part installation. The mechanical metal structure can be installed in one step under the condition that the foundation of the asphalt station is constructed, and it is rarely adjusted and modified in later production. Asphalt heating and pipe partial installation is mainly for asphalt heating services, and the installation workload depends mainly on the equipment storing and heating the asphalt.

Regardless of whether the asphalt station is installed or relocated to a new site for installation, the relevant personnel engaged in electrical installation must first be familiar with the control mode and principle of the entire electrical system in combination with the working process of the asphalt mixing plant, familiar with the distribution of the system and the specific role of some key control devices, so that the installation work is relatively easy.

According to the drawings and the installation position of the electrical components, the peripheral part is concentrated one by one from the peripheral part to each control unit or the peripheral control room, and the cable layout should choose a suitable path, and requires the weak current cable and the strong current signal cable to be arranged in slots.

The electrical system of the mixing station includes strong current, weak current, AC, DC, digital signal, analog signal, in order to ensure that these electrical signals can be stable transmission, so that each control unit or electrical component in time to output the correct control signal, and can stably drive the implementation components, whether the connection of the electrical line is stable has played a great influence. Therefore, in the installation process, it is necessary to achieve stable connection at each wiring point and the installation and tightening of electrical components.

The main control units of the asphalt station generally use industrial computers or PLC, and their control process is basically the circuit detects the electrical input signal that reaches the corresponding logical relationship, and timely outputs the electrical signal in accordance with the logical relationship to drive the relay or other electrical units or components. These relative parts work is generally relatively stable, if there is a failure in operation or debugging, first check whether the relevant input signals are well input, and then check whether the output signals that are required to be transmitted are not, and whether they are output according to the logic requirements.

In general, as long as the input signal is very stable and meets the logic requirements, the output signal will be output according to the internal program design requirements, unless the terminal is loose or the peripheral components and lines related to these control units are faulty.