A programmable logic controller (PLC) or programmable controller is an industrial digital computer that has been ruggedized and adapted for the control of manufacturing processes, such as assembly lines, robotic devices, or any activity that requires high reliability, ease of programming, and process fault diagnosis.

On the basis of giving full play to the compact structure, smooth operation and easy maintenance of the disc mixer, the structure of the stirrer disc is optimized, the space in the mixing chamber is reduced, the residence time of the slurry in the mixer is shortened, and the gypsum slurry is reduced due to high-speed stirring The adverse effects. At the same time, the optimal design of the discharge port to avoid the material at the discharge port at the same time the location of the filling agent modified to reduce the amount of blowing agent, while ensuring the foam in the slurry Uniformity, reduce plate weight, increase plate strength.

Foaming system: There are three kinds of foaming system: static foaming system, dynamic foaming system and the combination of dynamic and static foaming system. After separately adjusted and measured,the foaming agent, water, and compressed air will enter into the above three systems.Principle:The relative movement of fixed grinder and high-speed revolved grinder generates strong forces like shear, friction, impact ,etc, which makes air and foaming agent well-mixed to generate fine bubbles.

Residential elevators are incredibly safe. In fact, elevators, in general, are considered 20-times safer than escalators and yet escalators are used in a variety of commercial areas. A residential elevator installation comes equipped with a series of features that help to prevent injury.

Elevator, also called lift, car that moves in a vertical shaft to carry passengers or freight between the levels of a multistory building. Most modern elevators are propelled by electric motors, with the aid of a counterweight, through a system of cables and sheaves (pulleys).