Hydraulic Filter Press
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  • How to Distinguish Bad Filter Plates and Good Filter Plate
    Jan 18, 2022

    How to Distinguish Bad Filter Plates and Good Filter Plate1. To distinguish the bad and the good filter plate of the slurry filter press, you must first check whether the filter plate is in good condition as a whole, and whether the surface is smooth and clean. It should be very flat and clean, because it is an important position which affects the sealing of the filter chambers, and there must be no damage. If the filter chamber of the filter press cannot meet the most basic standards, the filter press cannot work. In the concave part of the filter plate, reduce all silk marks as much as possible. Because the internal working pressure of the filter press is very high, in the future application, the filter plate is usually broken and damaged from the filter plate wire mark due to the strong working pressure.2. Smell the filter plate. The filter plate of a good cloth filter press itself does not contain any choking or strong taste, but only contains a shallow high-pressure polyethylene smell. If the filter plate of the filter press itself contains rich vapor when it is not in use, it means that the filter plate is either added with too many additives in the whole production process, or it is re-melted and forged with waste material.3. The key is to touch. When a good filter plate is touched, all the smoke and dust cannot be brought out. The base butadiene will produce a thin layer on the surface of the filter plate, which will look like jade, but much less.

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  • Why Ceramic Plunger Pump Working with noise?
    Jan 10, 2022

    Why Ceramic Plunger Pump Working with noise?1. The noise of the ceramic plunger pumpThe phenomenon of air suction is one of the main reasons for the high noise of the hydraulic slurry pump. When air is mixed into the oil, it is easy to form cavitation in its high-pressure area, and it spreads in the form of pressure waves, causing the oil to oscillate and cause the system to produce cavitation noise. 2. Noise of relief valveThe overflow valve is prone to high-frequency noise, which is mainly caused by the unstable performance of the pilot valve, that is, the noise generated by the air vibration caused by the high-frequency oscillation of the pressure in the front chamber of the pilot valve.The main reasons are as follows:(1) Air is mixed into the oil, and cavitation is formed in the front cavity of the pilot valve, which causes high-frequency noise. At this time, the air should be exhausted in time and the outside air should be prevented from re-entering.(2) The needle valve is excessively worn due to frequent opening during use, so that the needle valve cone surface and the valve seat cannot be tightly fitted, resulting in unstable pilot flow, pressure fluctuations and noise. At this time, it should be repaired or replaced in time.(3) The pressure regulating function of the pilot valve is unstable due to the fatigue deformation of the spring, which makes the pressure fluctuate and causes noise. At this time, the spring should be replaced. 3. Noise of hydraulic cylinder Durning Ceramic Piston Pump woking(1) The oil is mixed with air or the air in the hydraulic cylinder is not completely exhausted, and cavitation occurs under the action of high pressure, which causes a lot of noise. At this time, the air must be exhausted in time.(2) The oil seal of the cylinder head is too tight or the piston rod is bent, and noise will also be generated due to the tension during the movement. At this time, it is necessary to replace the oil seal or straighten the piston rod in time.

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  • How to improve the dewatering efficiency of the plate and frame filter press?
    Dec 21, 2021

    How to improve the dewatering efficiency of the plate and frame filter press?1. Optimization of plate and frame filter press equipmentThe filter press dehydration effect is not good, the first consideration is to optimize and adjust the filter press prepared working parameters, such as the type of filter cloth, the pressing pressure value, and the operating procedure Etc., while ensuring the dehydration effect, the equipment efficiency is greatly improved.How to improve the dewatering efficiency of the plate and frame filter press?(1) Clean the filter cloth regularly and replace the corrugated filter with larger air permeability of filter cloth to increase the filtering speed.(2) Increase the pressing pressure by adding an air compressor.(3) Adjust the operating procedures, first squeeze and then press or press first and then reverse squeeze, compare the two dehydration effects, and constantly adjust the pressing and squeezing time and the cycle times of the two processes, observe the change of moisture.(4) Change the feeding method. Generally, the filter press is opened once the feeding is completed. Start pressing and squeezing, you can try to pre-press after the feeding is completed, then feed the material for second time, and continue to squeeze.2. Reasonable use of dehydrating agent for plate and frame filter pressMedicament is an important factor affecting filter press dehydration. Commonly used mainly include organic flocculation, inorganic flocculant, microbial flocculant, composite flocculant, coagulant aid etc. The dosage of inorganic flocculant is large and the effect is general; the dosage of organic flocculant small, but expensive, and has certain biological toxicity; quicklime and other coagulant aids great damage to the filter cloth and introduction of impurities; the application environment of biological flocculants is relativelyFor harsh. In the actual production process, multiple agents are often used in combination to ensure the dehydration effect.

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