First, first introduce the structure of the traditional plate and frame lubricant filter:
The traditional plate and frame lubricating oil filter is composed of alternating filter plates and filter frames.They are supported on a pair of beams and can slide on them. They are compressed or swing out by the pressing device. The surface structure of the filter plate has convexity. Benchtop and grooved.
Working principle of traditional plate and frame lubricating oil filter:
The filtrate to be filtered is pumped into the various filter chambers from the feed holes of the rear top plate through a pump. After passing through the filter cloth, the solid debris in the filtrate is trapped in the filter chamber and gradually forms a filter cake; the liquid passes through the outlet on the plate frame. The material holes are discharged outside the machine. The discharge of plate and frame lubricating oil filters can be divided into two methods: open flow and under flow. The filtrate is directly exposed to the outside of the machine through the discharge holes on both sides of the plate and frame. The advantage of open flow is that you can observe the liquid output of each filter plate and directly detect problems through the transparency of the discharged filtrate. The way in which the underflow holes of the rear top plate are discharged is called underflow. The disadvantage of the traditional plate and frame lubricating oil filter is intermittent operation, high labor intensity, requiring two workers to operate, and low production power.
III. Introduction to the structure of the new type lubricating oil filter The new type lubricating oil filter was developed by Xinxiang Gaofu Screening Machinery Co., Ltd. based on the common problems in the solid-liquid separation filtration of various occupations and the introduction of advanced professional world technology. It consists of parts, lifting structure, oscillator, filter leaf, butterfly valve assembly, pressure indicator, etc. The filter leaf uses a special stainless steel filter, which has a long life, large output and high precision. The original oil pressure structure has low oil content in the residue. Pneumatic butterfly valve is easier to operate and slag discharge. It is suitable for filtration and separation processes of decolorized oil filtration, clarification filtration, crystals, etc. in the professional production of oil, chemicals, medicine, etc., especially the cottonseed, rapeseed, castor in the oil and fat industry Hemp and other pressing oil is difficult to filter and difficult to discharge.
Introduction to the working principle of the new lubricating oil filter:
After the filtrate enters the tank through the pump and overflows, under the effect of pressure, the solid impurities in the filtrate are trapped by the stainless steel strainer, and a filter cake is formed on the strainer. The filtrate passes through the filter through the filter and enters the outlet pipe and flows out of the tank. Thus, a clear filtrate was obtained.
With the increase of filtration time, more and more solid impurities are trapped on the filter screen, which continuously increases the thickness of the filter cake, increases the filtration resistance, and increases the pressure in the tank. When the pressure rises to a certain value, it is necessary to discharge slag and stop Feed the filtrate to the tank, and then blow the filter cake with steam. Close the steam, open the butterfly valve, start the oscillator, make the filter leaf oscillate, shake off the filter cake on the filter screen and discharge through the slag discharge port under the tank.