Diaphragm filter press is an advanced solid-liquid separation equipment, which is widely used in sludge, chemical, pharmaceutical, food and other industries for dewatering. It uses a combination of diaphragm and diaphragm plates arranged alternately to separate the mixture from liquid under the action of high-pressure compressive force. It has higher filtration efficiency and better filtration effect. It can realize the functions of automatic circulation, automatic discharge and automatic cleaning, which greatly reduces the labor intensity and operation difficulty. At the same time, the diaphragm filter press also has the advantages of small footprint, convenient operation and high degree of automation. Therefore, diaphragm filter press has been more and more widely used in various industries, the following Jinkai ground filter press manufacturers briefly summarize the work process and precautions of diaphragm filter press.
1.Filtration stage: The liquid to be filtered is injected into the filter chamber of the diaphragm filter press and the feed valve is closed. The diaphragm pump is then turned on to compress the filter cake by pressing low-pressure gas from the air bag into the filter chamber and pushing the diaphragm upwards.
2.Pressing stage: When the filtration is finished, the high-pressure gas is continuously delivered to the air bag, which pushes the diaphragm further upwards to press the filter cake to discharge the excess liquid.
3.Washing stage: After the end of pressing, the washing liquid valve is opened, and the washing liquid is injected into the filter chamber to wash the filter cake. At this point, turn off the diaphragm pump and relax the diaphragm to allow the washing liquid to fully penetrate into the filter cake.
4.Blowing stage: After washing, open the compressed air valve and blow dry the filter cake with compressed air. During the blow-drying process, the air pressure and drying time are constantly adjusted to obtain a high-quality filter cake.
5.Discharging stage: After the drying is over, the discharging mechanism is turned on and the filter cake is discharged from the filter chamber.
6.Prepare for the next round of filtration: After discharging, close the relevant valve and prepare for the next round of filtration.
1. Standardized operation: strictly follow the operating procedures to ensure the safe operation of the equipment. Check the sealing performance of the equipment, the operation status of the hydraulic system and the filtration system, and eliminate the fault in time.
2. Data recording: record the value of pressure gauge, flowmeter and other instruments, the pressing pressure and filtration pressure of the diaphragm filter press to ensure that the pressure value is within the specified range. Once there is an abnormal situation, it should be stopped for inspection in time
3. Personnel training: Operators need to be professionally trained and familiar with equipment performance and operating procedures to avoid equipment damage caused by misoperation.
4. Operation status: Pay close attention to the operating status of the filter press, including pressure, flow, sound and other parameters, and adjust them in time. Care should be taken to avoid overload and overpressure to avoid equipment damage and safety accidents. Observe the sealing performance of the diaphragm filter press to prevent leakage;Pay attention to prevent the filter cloth from clogging or breaking, and clean or replace the filter cloth in time. Attention should be paid to avoid damage to filter plates, diaphragm plates and other components, so as not to cause leakage or poor sealing.
5. Maintenance: Regularly maintain and maintain the equipment to keep it in good working condition. Pay attention to keep the equipment clean to prevent dust and debris from contaminating the filter cloth and diaphragm and affecting the filtration effect.
The above is a summary of the working process and precautions of the diaphragm filter press, when using the diaphragm filter press, it is necessary to pay attention to the operation procedures, pressure gauges, filter plates, diaphragm plates, maintenance, cleaning, safety and other aspects of the equipment to ensure the normal operation of the equipment and production safety.