Automatic washing diaphragm filter press

Automatic washing diaphragm filter presses:

Reinforced polypropylene board

(A) Reinforced polypropylene board has improved polypropylene formula and increased glass fiber content. It has stable chemical properties, excellent corrosion resistance, non-toxic, tasteless, light weight, high strength, good toughness, and labor intensity during manual discharge. Low and durable. The design of the filter plate cavity is reasonable. The point-shaped conical boss is used. The flow channel is uniquely designed. The bump size, dense arrangement, and angle are precisely studied. It has a great impact on the amount of filtration and dehydration. It has a fast flow rate and a filtration cycle. Short, the work efficiency of the filter press is greatly improved.

(B) Deepen the drain tank of the filter plate, so that the material is unobstructed and will not be blocked. It is convenient to install and remove the filter cloth, increase the filtration speed, shorten the production cycle, increase the number of productions, and increase the effective filtration volume, so that the thickness of the filter cake is increased. 30mm, yield is significantly improved.

(C) The moisture content of the filtered mud cake is low. Once the filter plate is pulled apart, the filter cake will automatically detach from the filter cloth by virtue of its own weight without external force.

Hydraulic system

The hydraulic station is a vertical structure. The hydraulic system can automatically maintain pressure when the hydraulic cylinder completes the compaction and release of the cylinder, which improves the safety and reliability of the entire hydraulic system. At the same time, it is convenient for users to maintain and maintain. Key components: The oil cylinder adopts the products of the Sino-German joint venture Wuxi Hydraulic Component Factory, and the hydraulic components such as check valves, directional valves, and relief valves are from Taiwan and Shanghai Huadao Hydraulic Components Factory, thereby making the entire hydraulic system safer and more reliable. The user's entire filtering process was successfully completed.

(A) Hydraulic system for hydraulic cylinder compression and release: It consists of three parts: power system, control system and actuator. The control system consists of high pressure relief valve, pressure gauge, check valve, electromagnetic reversing valve and hydraulic control check valve. , Low pressure relief valve, electrical contact pressure gauge and other components. The pressure of the cylinder is adjusted by the high pressure relief valve, the pressure of the pull plate is adjusted by the low pressure relief valve, the pressure holding system is controlled by the check valve and the stop valve. ; The electric contact pressure gauge realizes the automatic pressure compensation of the pressure in the back cavity of the oil cylinder (high pressure cavity), which stabilizes the pressure within a range and ensures the smooth completion of the filtering process.

(B) Oil motor pull plate hydraulic system: It consists of three parts: power system (low flow plunger pump 10r / min), control system (hydraulic components), and actuator (oil motor). The control system is a low pressure relief valve. 3, electromagnetic reversing valve. The pressure of the oil motor pull plate is adjusted by the relief valve (3-4Mpa); the speed of the pull plate is kept within a suitable range, and the two basic actions of the oil motor pull plate are realized by the electromagnetic reversing valve.

Electronic control system

The electric control system adopts PLC programming design. They have the characteristics of reliable performance, safety and stability. PLC program control is controlled by human-machine interface, which is easy to learn and understand. This system uses Mitsubishi PLC control module and low-voltage components of well-known domestic brands.

PLC is small in size, strong in function, fast in speed, high in reliability, and because of greater flexibility and scalability, the control program can be changed with the process, and the computer interface can be remotely controlled.

Automatic cleaning device

It is a device for cleaning filter cloth installed under the filter plate of a filter press. The device consists of a moving cleaning rack, a swinging cleaning rod and a high-pressure cleaning pump. The cleaning of the filter cloth is performed after unloading, or After several working cycles, cleaning is performed once, and high pressure water is sprayed through the cleaning nozzle for cleaning. The design of a single pendulum cleaning mechanism has a novel structure and a good cleaning effect. The cleaning under the filter plate is realized. The cleaning high-pressure mist in the pendulum is connected by spray nozzles. The action characteristics are accurate positioning, stable operation, uniform swing speed, and cleaning surface. Large, can clean two sides at a time, the cleaning pressure is always maintained at 1Mpa. It is fully enclosed and does not need to be on duty.

Filter cloth screed vibration mechanism

The herringbone link mechanism is installed on the upper and middle sides of the filter plate respectively. The filter cloth is connected to the herringbone link mechanism through connecting rods, springs, hooks, etc., and the spring is stretched. The plate is pulled apart, causing the filter cloth to vibrate in the herringbone mechanism, which helps the mud cake to peel off from the filter plate. The whole process does not require external force and manual field operation. Due to the small solid particle size and high viscosity of the steel soot and waste water, the mud cake is not easy to peel off. This variator mechanism is completely suitable for the filtration of steel soot and waste water.

Automatic flip system

It is a kind of liquid collecting device installed under the filter plate. When the filter press is feeding, some liquid leaks under the filter plate, flows into the flap (automatic water collecting tray) and flows down to both sides of the filter press. The main advantage of the liquid collecting tank is that the liquid cannot flow into the filtered solid material. For the filtration of salt water, the salt water is saved more, the cost is reduced, and the benefit is improved. It is more beneficial when washing the filter cloth, the washing liquid can be concentrated to flow out, reducing the labor intensity of workers, and better protecting the operating environment.

Automatic control principle: It is a low-speed motor 4.8r / min, which drives the flap (automatic water collecting tray) through a coupling, and some appliances and induction switches make the flap (automatic water collecting tray) automatically open and close.

Hydraulic opening and closing mud bucket

8mm thick high-quality Q235 steel plate is welded. The hydraulic cylinder (single-sided double-cylinder) piston rod drives the fan-shaped door to close and open. The fan-shaped door is closed when unloading. Centralized storage is convenient for truck transportation. The overall mechanical strength is high and no Stuck material, no leakage when storing mud. After use, the environment is good and the labor intensity is low.

Control method: The hydraulic automatic pressure maintaining system is adopted to control the opening and closing of the fan-shaped door by reversing the electromagnetic reversing valve. The electronic control system is controlled by the relay circuit, which has the characteristics of reliable performance, safety and stability. Automatic washing diaphragm filter press

Scope of application:

It is widely used in the production process of various industrial industries such as chemical industry, petroleum, pharmaceutical, sugar making, metallurgy, food, ceramics, starch, etc., and the purification treatment of various industrial wastewater and domestic sewage.