水稳拌和站整个电气系统由两部分构成.一部分是强电部分,它包括按钮、断路器、接触器、各种继电器、变频器等,放置在操作台和电气柜中,主要控制整个拌和站的运行;另一部分是弱电部分,主要是指集中式微机配料控制系统,它包括测速传感器、称重传感器、信号放大器、模出(模入、脉入、开关量出)调理盒、工控机、彩色显示器等.它们有机地组合在一起,对整个稳定土拌和站从配料上料搅拌出料实现生产过程控制,达到生产目的.

Water mixing station for the entire electrical system consists of two parts. One part is the strong part of it, including buttons, circuit breakers, contactors, relays, inverter, placed on the operating table and the electrical cabinet, the main control of the mixing station operation; the other part is the weak part, mainly refers to the centralized microcomputer the control system, which comprises a weighing sensor, speed sensor, signal amplifier, analog output (analog input, pulse, switch out), conditioning box IPC, color display and so on. They are organically combined together, the stabilized soil mixing station mixing material from the ingredients The material production process control and achieve the objectives.

集中式微机配料系统的基本工作原理如下:

The basic working principle of the centralized microcomputer batching system is as follows:

安装在配料秤架上的称重传感器将流经皮带上(螺旋秤架内)的物料重量转化为电压信号,该信号送往信号放大器进行放大并转化为电流信号;测速传感器将配料皮带(调速螺旋机)的速度以脉冲信号送往信号放大器,该速度电流信号经整形后与物料重量电流信号同时送往计算机进行乘积运算,即可得知经过配料皮带上(螺旋秤架内)的物料流量及累积量.

Installed in the weighing sensor weighing frame will flow through the belt (helix frame) material weight into voltage signal, the signal to the signal amplifier and converted into current signal; speed sensor the proportioning belt (speed screw machine) the speed pulse signal to the signal amplifier, the current signal speed when the shape and weight of material and current signals sent to the computer by the product operation can be learned after batching belt (helix frame) of the material flow and amount.

计算机将对计算出的该物料的实际流量与物料配方中的流量设定值进行比较,根据比较结果送出控制信号,该信号通过变频器对秤架上的各个皮带电机或调速螺旋机进行速度调节即可改变物料的流量,使之按照预先设定的配比进行给料.

The computer will be the actual flow and material formulations for the material of the calculated flow set value, according to the comparison result sends out the control signal, the signal through each inverter motor or speed of screw conveyor belt scale frame on speed adjustment can change the flow of materials, the feeding according to the preset ratio.

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