Filter Press Mechanical Compression

- Mar 30, 2019-

Filter machine using a special filter medium, the object to exert a certain pressure, making the liquid out of a mechanical equipment, is a commonly used solid-liquid separation equipment. In the early 18th century on the application of chemical production, is still widely used in chemical, pharmaceutical, metallurgy, dyes, food, brewing, ceramics and environmental protection industries.


Filter plate with stable performance, easy operation, safety, effort; metal tube by the seamless steel pipe processing, plastic plate casting molding, high temperature, high pressure, durable


Function: the mixture of solid extracted, to achieve the role of solid and liquid separation.




A, filter classification: chamber pressure filter (chamber pressure filter) "and" belt pressure filter (belt pressure filter), diaphragm filter press, plate and frame filter press


B, structural classification: cantilever filter press and belt filter press


C, pressure classification: hydraulic compression, manual jack compression, mechanical compression


Science used: solid and liquid physical.


The subject: coal science and technology (a subject); mine mechanical engineering (two subjects); coal preparation machinery (three subjects)


History: The first filter press equipment appeared in the early 18th century, is used for chemical industry production.


The use of filter press:


Pharmaceutical, chemical, standard parts, pharmaceutical, metallurgy, non-standard screws, dyes, food, brewing, ceramics, oil refining, sewage treatment and other environmental protection industry.


The structure of the filter press consists of three parts:




The frame is the basic part of the filter press, both ends of the thrust plate and the pressure head, both sides of the beam will be attached to the two together, the beam to support the filter plate, filter box and compression plate. In order to meet the high health needs, the rack needs to be wrapped with stainless steel. Package stainless steel technology can do reference, its quality can meet the needs of European customers.


A, thrust plate: it is connected with the bearing filter press one end is located on the foundation, the chamber filter press the middle of the thrust plate is the feed


Hole, four corners and four holes, the upper corner of the hole is the washing liquid or press gas inlet, the next two corners for the export (undercurrent structure or filtrate outlet)


b, compression plate: used to press the filter plate filter, both sides of the roller to support the compression plate in the beam on the track rolling.


C, beam: is the load-bearing components, according to the use of environmental protection requirements, you can choose rigid PVC, polypropylene, stainless steel coating or new anti-corrosion coating and other coating.


Compression mechanism


Manual compression, mechanical compression, hydraulic compression.


A, manual compression: is a screw-type mechanical jack to push the compression plate will be pressed plate.


B, mechanical compression: compression mechanism by the motor (equipped with advanced overload protector) reducer, gear pay, screw and fixed


Nut composition. When pressed, the motor is turning, driving the reducer, gear to pay, so that the screw in the fixed silk mother in the rotation, pushing the compression plate will filter plate, filter box compression. When the compression force is getting bigger and bigger, the motor load current increases, when the protector set to the current value, to achieve the maximum clamping force, the motor cut off the power, stop turning, because the screw and fixed wire mother is reliable Of the self-locking helix angle, can reliably ensure that the work of the compression state, when returned, the motor reversal, when the compression plate on the briquetting, touch to the stroke switch back to stop.


C, hydraulic compression: hydraulic compression mechanism consists of hydraulic station, cylinder, piston, piston rod and piston rod and pressure plate with


The structure of the hydraulic station is: motor, oil pump, relief valve (regulating pressure) valve, pressure gauge, oil, fuel tank. When the pressure is greater than the frictional resistance of the pressing plate, the pressing plate slowly presses the filter plate, and when the pressure is greater than the frictional resistance of the pressing plate, when the pressure is greater than the frictional resistance of the pressing plate, When the pressure is set to the pressure value set by the relief valve (indicated by the pressure gauge pointer), the filter plate, the frame (plate and frame) or the filter plate are pressed and the relief valve starts unloading. , Cut off the motor power supply, pressing the action is completed, when the return valve, the pressure oil into the cylinder of the rod cavity, when the oil pressure to overcome the friction plate compression, the compression plate began to return. Hydraulic pressure for the automatic packing, the compression force is controlled by the electrical contact pressure gauge, the pressure gauge upper limit pointer and lower limit pointer set in the process of the required value, when the pressure reaches the upper limit of the pressure gauge, the power Cut off, the pump to stop the power supply, due to the oil system may produce leakage and leakage caused by the decline in compression force, when down to the lower limit of the pressure gauge pointer, the power is connected, the pump began to supply oil, the pressure reaches the upper limit, the power cut off, The oil pump stops the oil supply, which circulates to achieve the effect of ensuring the compression force during the filtration of the material.