Hydraulic Pressing
PTMS Magnetic Separator
How Does A Magnetic Separator Work?

Introduction:

 The hydraulic press is a kind of intermittent pressurized filter device, for a variety of suspension of the solid-liquid separation, the separation effect is good, easy to use, widely used in petroleum, chemical, metallurgy, pharmaceutical, dye, food, paper, coal washing and sewage treatment and other needs of the solid-liquid separation field.
The hydraulic press is a kind of intermittent pressurized filter device, for a variety of suspension of the solid-liquid separation, the separation effect is good, easy to use, widely used in petroleum, chemical, metallurgy, pharmaceutical, dye, food, paper, coal washing and sewage treatment and other needs of the solid-liquid separation field. The hydraulic pressure filter is mainly composed of four parts, that is, the frame part, the filter part, the hydraulic and electrical control part. When the filter press works, the piston in the oil cylinder pushes the pressing plate to compress the filter plate and filter medium between the pressing plate and the thrust plate, so as to ensure that the filtered material (slurry) with working pressure is pressurized and filtered in the filter room.

Work principle
 Composition of filter press hydraulic compacting mechanism by hydraulic station, hydraulic cylinder, piston, piston rod and the piston rod is connected with the press plate havran card hydraulic station structure is composed of motor, pump, relief valve (pressure) valve, pressure gauge, oil tank.
 Hydraulic mechanical pressing, a hydraulic station for high pressure oil, the oil cylinder and the piston element cavity filled with oil, when the friction resistance is greater than the pressure plate operation when the pressing plate slowly pressed plate, when the pressure reaches the relief valve set pressure value (by pressure gauge pointer display), filter plate and the filter frame (frame type) or filter plate (Van) is pressed, the overflow valve to unload, then cut off the power supply, press finished back, reversing valve, the pressure oil into the cylinder rod chamber, when the oil pressure can overcome the friction press plate, the pressing plate began to return.
 Hydraulic press for automatic pressure, the pressing force is controlled by electric contact pressure gauge, pressure gauge pointer and pointer limit limit set in the numerical process requirements, when the pressing force cut off the power supply to achieve the upper limit, when the pump stop power supply, because the oil system may produce the internal leakage and leakage caused by the pressing force decreased, when reduced to the lower limit of the pressure gauge pointer when the power is switched on, start oil pump, cut off the power supply, the pump pressure reaches the upper limit, stop feeding, pressing force to achieve this cycle to ensure the filter materials in the process of effect.

Filtering method: flow filtration and dark flow filtration are identified in the way of filtrate outflow. The flow of each filter, filter plate below the liquid outlet hole is arranged on the water outflow from the water, leachate directly in. Under the condition of the undercurrent filtration, the outlet of each filter plate is provided with a liquid outlet channel, and a liquid outlet of a plurality of filter plates is provided by Kong Liancheng.

Washing method: when the filter cake needs washing, sometimes one way washing and two way washing are flow, and the dark flow one way washing and two way washing. The flow is one-way washing lotion, into the hole from the thrust plate in order to enter the fluid through the filter cloth, and then passes through the filter cake from the hole, then the filter plate outflow orifice of the liquid outlet is closed, no orifice outlet faucet is open. The flow is bidirectional washing lotion, lotion on both sides of the thrust plate from the inlet opening of the washing lotion that has two times, first from one side to the other side from the washing washing lotion with the import export is diagonal direction, so it is also called two-way cross washing. The underflow unidirectional flow polyester is that the lotion enters the hole board in order from the washout of the thrust plate, through the filter cloth and then through the filter cake, and flows out from the non hole filter plate. The two way washing of the undercurrent is that the lotion is washed two times from the two lotions on the two sides above the stop plate, that is, washing first from the side, then washing from the other side, the outlet of the lotion is diagonal, so it is also called the "undercurrent" two way cross washing.

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