The plate type closed filter has unique design structure, small volume, high filtration efficiency, good filtrate transparency and fineness, no material consumption, no consumption of filter paper, filter cloth or paper core, but only a small amount of filter aid, so the filtration cost is very low, and the equipment operation, maintenance and cleaning are convenient. The plate type airtight filter is mainly composed of the filter host and some auxiliary equipment such as mixing, delivery pump, pipeline, valve, electrical control, etc. it is a complete filtration system, and its filtration process depends on the filtered medium. Plate type closed filter is the ideal clarification equipment for the filtration of activated carbon, clay and diatomite in medicine and chemical industry. Automatic slag removal, no residual liquid and large solid capacity are the advanced features of the equipment. The plate type closed filter is designed with a unique filter screen plate, which eliminates the need for filter paper and cloth, and greatly reduces the filtering cost. There is no pollution and oil loss in the full airtight filtration operation. Vibration slag, greatly reduce the labor intensity can achieve continuous operation, automatic valve slag discharge, thus greatly reducing the labor intensity of workers.

Some solutions for plate type closed filter in case of relevant problems:

1、 Fault analysis: the hydraulic system of the plate type closed filter mainly provides pressure. When the oil injection in cavity a increases, the piston moves to the left and presses the filter plate to make it closed. When the oil filling in chamber B increases, the piston moves to the right and the filter plate of the filter is loosened. Due to the precise manufacturing, the hydraulic system of the filter has less faults, so long as attention is paid to the daily maintenance. Due to wear, oil leakage will occur every year or so. At this time, the O-ring shall be repaired and replaced.

Solution: the common hydraulic failure of the filter also includes the pressure can not be maintained and the hydraulic cylinder is not suitable for propulsion. The main reasons for the failure to maintain pressure are oil leakage, O-ring wear and abnormal operation of the solenoid valve. The common treatment methods are to remove and check the valve, replace the O-ring, clean and check the solenoid valve or replace the solenoid valve. It is obvious that the air is sealed inside the unsuitable hydraulic cylinder of the filter. At this time, as long as the system extracts air, it can be solved quickly.

2、 The plate type closed filter moves slowly or even falls off

Fault analysis: sometimes, too much oil and dirt on the guide rod will cause the filter plate of the plate frame filter to walk slowly or even fall off.

Solution: at this time, it is necessary to clean the guide rod in time and apply grease to ensure its lubricity. It should be noted that it is strictly prohibited to apply thin oil on the guide rod, because the thin oil is easy to fall, making the lower side very slippery, and personnel are easy to fall during operation and maintenance here, causing personal injury accidents.

3、 Groove mark on the filter plate of plate type closed filter

Fault analysis: after several years of use, the filter plate of the plate type closed filter, due to some reasons, causes some groove marks at the corners. Once the groove mark appears, it will expand rapidly until it affects the formation of filter cake. At first, the filter cake becomes soft, then it becomes semi slimy, and finally the filter cake cannot be formed. Due to the special material of filter plate, which is difficult to repair, it can only be replaced with new ones, so it causes high cost of spare parts. During this period, we tried some patching agents, but the effect has been bad. When we changed to oil surface patching agent recently, the situation finally turned. The trial effect is very good, and the sealing effect has been achieved.

Solution: 1. Clean the groove and leak out the fresh surface. Clean the groove with a small saw blade. 2. Mix the black and white repairing agents according to the ratio of 1:1. 3. Apply the prepared repairing agent on the groove and fill it with a little higher. 4. Quickly cover the filter cloth of the filter and squeeze the filter plate of the filter together so that the repairing agent and the filter cloth of the filter are stuck together. At the same time, flatten the groove. 5. After pressing for a period of time, stick it The rubber is naturally formed, no longer changing, and can be used normally at this time.

The plate type closed filter is a kind of pressure filtration device. When the filtrate is under the action of the pump, the filtrate can obtain the appropriate filtrate through the filter bag with the required precision level. The plate type closed filter is very convenient to replace the filter bag, and there is basically no material consumption for filtration. The machine has single filter and double filter, and can be assembled on a mobile cart with a supporting delivery pump. Filter bag protection nets are made of stainless steel, made of carbon steel, stainless steel, plastic, etc., for users to choose different media. The hydraulic system of the plate type closed filter mainly provides pressure. When the oil injection in cavity a increases, the piston moves to the left and presses the filter plate to make it closed. When the oil filling in chamber B increases, the piston moves to the right and the filter plate of the filter is loosened. Due to the precise manufacturing, the hydraulic system of the plate type closed filter has less faults, so long as the daily maintenance is paid attention to. Due to wear, oil leakage will occur every year or so. At this time, the O-ring shall be repaired and replaced.