Reliable solutions for your factory: Customized automatic diaphragm filter press, achieving efficient filtration with just one click.
1. Diaphragm compression system
Structure: The filter plate is composed of a diaphragm plate and a box-type filter plate in pairs. The surface of the diaphragm plate is covered with an elastic diaphragm (usually made of rubber or polypropylene).
Working principle: After the conventional feed filtration is completed, a high-pressure fluid (water or compressed air) is introduced into the rear chamber of the diaphragm plate, causing the diaphragm to expand and performing a secondary squeezing on the filter cake.
Core Strengths:
Lower moisture content: Through mechanical extrusion, the moisture in the filter cake can be further squeezed out, significantly reducing the moisture content of the filter cake. The maximum reduction can be up to 10% - 20%.
Faster filtration cycle: In the initial filtration stage, a higher flow rate can be used for feeding. Later, through pressing, the final low moisture content is achieved, which shortens the entire filtration cycle.
Easy for discharging: The filter cake after pressing has a denser structure and better shape, making it easier to fall off the filter cloth.
2. Automatic Plate Lifting System
Structure: It is mainly composed of the driving device (servo motor/hydraulic motor), transmission chain, pull plate trolley and electronic control system.
Working principle: After the filtration and pressing processes are completed, the pull plate cart, under the control of the electronic system, automatically grabs the filter plates and pulls them apart one by one in the preset sequence.
Core Strengths:
Fully automated operation: It has replaced the arduous and dangerous manual process of pulling plates piece by piece, and has achieved the "one-click discharge" function.
Efficient and fast: The sliding plate operates with stable and rapid speed, significantly reducing the unloading time and enhancing the equipment utilization rate.
Safe and reliable: It avoids direct contact between operators and equipment, reducing potential safety hazards. The system is usually equipped with overload protection to prevent jamming and damage.
Integrability: It can be easily linked with auxiliary equipment such as belt conveyors to achieve full-process automation.
Pressing the filter plates: The hydraulic system pushes the pressing plates, causing all the filter plates to be pressed tightly between the thrust plate and the pressing plate, forming a sealed filter chamber.
Feed filtration: The feed pump pumps the suspension (material) into the filter chamber. Under the pressure of the pump, the solids are retained in the filter chamber to form a filter cake, while the liquid (filtrate) passes through the filter cloth and is discharged.
Diaphragm compression: Close the feed valve, inject high-pressure water or gas into the diaphragm plate, causing the diaphragm to expand and exert strong pressure on the filter cake, thereby further separating the liquid and solid components.
Blowing and drying (optional): Introduce compressed air, pass through the filter cake, blow away the remaining liquid, making the filter cake drier.
Release the filter plate: The hydraulic system releases pressure and the pressing plate retracts.
Automatic plate pulling: The plate pulling cart starts and sequentially pulls out each filter plate.
Discharge: The filter cake falls off from the open filter chamber due to its own weight and drops into the collection tank or conveyor below.
Loop ends: The pallet trolley returns to its original position, ready for the next cycle.
1. Environmental protection industry: Dewatering of sludge from urban sewage plants and sludge from industrial wastewater (such as from dyeing, papermaking, electroplating, etc.).
2. Chemical Industry: Solid-liquid separation for products such as pigments, dyes, catalysts, resins, and fertilizers.
3. Mining and Metallurgy: Dewatering of concentrates and tailings, treatment of metal hydroxide precipitates.
4. Food industry: Filtration of starch, yeast, and plant extracts.
5. Other fields: Material dehydration in the fields of ceramics, building materials, and coal industry.