The filter plate of filter press is also called composite filter element plate, polypropylene filter plate, diaphragm filter plate and filter plate of filter press. It is made of ultra-high molecular weight polyethylene or polypropylene resin and mixed with various commonly used additives, antioxidants and crosslinking agents. Molded filter press filter plate forming equipment, commonly used 1000 tons, 1200 tons, 1500 tons, 2000 tons, 2500 tons, etc.four-column hydraulic pressIt adopts the pressure design of three stages of pre-pressing, molding and holding pressure and carries out scientific distribution by time segmentation pressure, so that the energy efficiency of the equipment is more significant, the molding pressure is high and reliable, and the molding quality of hot-pressing molding materials is guaranteed. The automatic production equipment has high automation degree, short production cycle and high production efficiency.
2000 tons of four-column hydraulic press hot molding filter press filter plate forming process:
1. Put the dough-like raw materials processed from the extruder into the lower mold cavity of the hydraulic press, and place the raw materials evenly;
2. After feeding, start the machine to close the male mold and the female mold. The action changes from fast to slow slowly. After the mold is closed, the pressure can be increased to heat and pressurize the raw materials;
3, to avoid the product internal stratification and bubbles need to return the hydraulic press exhaust action, exhaust operation can shorten the curing time and improve the physical and mechanical properties of the product;
4, in the molding temperature to maintain a period of time thermosetting plastic curing;
5, 2000 tons of four-column hydraulic press lower top cylinder top demoulding take material;
6. The filter plate of the finished filter press after demoulding can be taken out for trimming and post-processing.
First, polypropylene is heated and melted and extruded, and the weight of the extruded material is also different according to the size of the filter plate. The polypropylene that meets the weight standard is introduced into a 2000-ton four-column hydraulic press, the formed filter plate is taken out and cooled, and then the completely cooled semi-finished filter plate is placed on a full-automatic numerical control machine tool for processing, so that the size and shape of each piece are consistent. After trimming, punching and other operations, the finished filter plate is like this. The process seems simple, but the details need to be controlled accurately.
2000 tons of filter press filter plate moldingforming hydraulic pressUsing three beam four column structure design, the equipment is mainly composed of two parts of the host and control mechanism. The main part of the hydraulic machine includes hydraulic cylinder, beam, column and liquid filling device. The power mechanism is composed of fuel tank, high-pressure pump, control system, electric motor, pressure valve, directional valve, etc. The hydraulic press has an independent power mechanism and electrical system, and adopts button centralized control, which can realize three operation modes: adjustment, manual and semi-automatic. The process action sequence of the 2000-ton filter press filter plate compression molding hydraulic press is as follows: fast down-slow down pressurization-pressure holding delay-exhaust-pressure relief delay-return journey. The equipment efficiency is more significant, the molding pressure is high and reliable, which ensures the molding quality of hot-press molding materials. The filter plate forming hydraulic press has high automation, short production cycle and high production efficiency. With PLC servo control system, high precision, high efficiency, energy saving, environmental protection and other advantages.
Selection of filter plate hydraulic press machine:
Usually 1.5 meters of filter plate used800 ton hydraulic pressThe 1.6-meter filter plate uses a 1000-ton hydraulic press and the 2.5-meter filter plate uses a 2000-ton hydraulic press.