Programmed automatic diaphragm filter press correct operation method

Programmed automatic diaphragm filter press

Programmed automatic diaphragm filter pressPLC control is adopted to operate the filter press (e.g. pressing plate, loosening filter plate, pulling plate for unloading), and remote port is left for automatic control by remote computer;diaphragm filter pressIt consists of diaphragm plate and chamber filter plate. After feeding the material, it starts the drum press to reduce the water content for the second time. The filter chamber consists of filter plates arranged in a row (the two sides of the filter plates are concave, and every two filter plates are combined to form a chamber). The surface of the filter plates has pockmarks and tabs for supporting the filter cloth. There are holes in the centre and corners of the filter plates, which when assembled form a complete channel for entering the suspension, washing water and leading out the filtrate. The filter plates are supported on the beams by handles on each side, and the plates are pressed down by a compression device. The filter cloth between the filter plates is sealed. The filtration section consists of the filter plates on the main beam and the filter media sandwiched between the plates. At the beginning of filtration, under the pressure of the feed pump, the filter slurry enters into each filter chamber through the feed port of the thrust plate, and the solid-liquid separation is carried out with the help of the pressure generated by the feed pump. Due to the action of the filter medium (filter cloth), the solids remain in the filter chamber to form a filter cake, and the filtrate is discharged from the spout or outlet valve. If the filter cake needs to be washed, washing water can be entered through the washing port on the thrust plate to wash the filter cake; if the filter cake with lower water content is needed, compressed air can be entered through the washing port to blow out part of the water in the filter cake through the layer of filter cake. For automatic control, rotate the rotary switch to the automatic position, and then press the programme automatic button, the system automatically completes the process of compressing, making up pressure, unloading pressure, loosening, removing and pulling the plate.

Programmed automatic diaphragm filter press product application range

Programmable diaphragmfilter pressIt is mainly used in coal washing, inorganic salt, mining, alcohol, petroleum, chemical, metallurgy, medicine, food, textile, printing and dyeing, paper making, municipal sewage treatment and other fields.

Programmed automatic diaphragm filter press product technical parameters

Specification Model)G30/800-30UBK Filtering Area(㎡):30.

Filter plate size(mm):800×800Cake thickness(mm):30.

Chamber volume(L):460Number of filter plates(pcs):23.

Programmable automatic diaphragm filter press product advantages and features

1. Advanced filtration process, effectively reduce the moisture of the material and improve the solid filtration;

2. Configure safety devices to ensure safe operation;

3. The filter plate is pressed with reinforced polypropylene, high strength, light weight, corrosion resistance, non-toxic and odourless;

4. Computer automatic control, reduce labour intensity;

5. Diaphragm pressing function, short filtration cycle, low energy consumption;

6. Strong corrosion resistance.

The correct operation of the programmable diaphragm filter presses

1. Positive pressure strong pressure dewatering, also known as into the slurry dewatering, that is, a certain number of filter plate in a strong positive pressure as a filter material into the filter chamber, into the filter chamber of the solid part of the filter material by the mass of the mass out of the filter chamber, so as to achieve the solid-liquid separation purpose. With the increase of positive pressure, solid-liquid separation is not cost-effective.

2. Filter presses equipped with rubber extrusion membrane, compressed media (such as gas, water) into the extrusion membrane water back, so that the extrusion of the filter cake further dehydration.

3. Compressed air enters one side of the filter cake of the filter chamber, and through the cake the liquid water is discharged from the other side of the cake through the filter cloth. If there are filter cloths on both sides of the chamber, the liquid part can be discharged from the chamber through the filter cloths on both sides of the chamber, which are the two sides of the chamber.

4. After dewatering is completed, remove the mechanical pressure of the filter plate, gradually open the filter plate, respectively open the filter chamber to unload the cake as a working cycle. Programmable diaphragm filter press of different nature, programmable diaphragm filter press can be set up separately into the slurry dewatering, squeeze dewatering to reduce the moisture of the cake.

Safe Operating Procedures for Diaphragm Filter Presses

1. Check whether the oil level of the diaphragm filter press is too low, replenish the oil in time, and check whether the pressure gauge, hydraulic components and piping system are damaged, leaking or blocked.

2. Check if the filter plate is cracked.

3. Check that the filter cloth is clean and undamaged. There are other adulterants on the sealing surface of the filter cloth. The inlet must be unobstructed.

4. Check whether the connecting parts of the diaphragm filter press are intact, such as bearings, sprockets and chains.

5. Check whether the plate and frame filter press operating system is faulty.

6. Check that the high pressure damper is open and the oil filter on the pipework is clean. Whether the steam movement valve is in the required on/off state.

7. Turn the pulley manually without obstruction; the concentration range of the feed slime water. When processing is complete, press the process start button and the programme continues. The filter cloth of the diaphragm filter press is cleaned once every time to ensure that the filter cloth is cleaned. During the feeding process, when the filtrate discharges black water, check whether the filter cloth is damaged, and whether the damage is found to be replaced in time. This is particularly important.

8. Pay attention to the feeding time, prevent the feeding time is too long, clogging the centre feeding hole and damaging the filter plate, clean it in time after clogging. Prevent diaphragm damage and maintenance, regularly oil each sprocket, chain, bearing and roller, pay attention to the sealing of each part.

9. When working, please listen carefully to the working sound of the diaphragm filter press. If there is any abnormality, please report immediately. Check the material in the feed drum, do not mix rubbish and impurities, and do not have blocks and strips, so as not to block the feed channel and damage the filter cloth.