Precautions you need to know when using diatomaceous earth filters
The diatomaceous earth filter comprises a filter tank, wherein the filter tank of the diatomaceous earth filter filter has an inlet and an outlet, and a liquid guiding sleeve is arranged in the inlet and the outlet, and a negative pressure groove is arranged on the upper surface of each filter plate. The negative pressure tank is covered with a filter cloth, the inlet is connected with the cavity above the filter cloth, and the outlet is connected with the negative pressure groove below the filter cloth. The speed of the diatomite coating is fast, the coating is stable, does not fall off, and is not cracked by using the technology. The filtration area is large and the filtration quality is good, because the energy saving, labor saving, and time saving are adopted, and the production efficiency is improved. 
Precautions
1. In the process of precoating, the key to the success or failure of the additive is whether the formation of uniform, stable, crack-free and detached diatoms can be affected. The main reasons for the filter media are: The viscosity of the slurry and the particle size of the diatomite should be matched properly. The poor rigidity of the filter medium is also the main cause of the crack. In the filtration, the medium is less stressed and has no deformation. When the time is longer, the resistance is increased. When the bearing stiffness is insufficient, deformation occurs, causing cracks and cracks in the precoated diatomaceous earth layer. If diatomaceous earth is used alone and the particle size is too fine, cracking sometimes occurs. At this time, diatomaceous earth may be mixed with a certain amount of asbestos fiber. Can be avoided. (But in practice, the asbestos fiber fiber is not added and used well).
2. During the pre-coating process, diatomaceous earth forms a uniform thickness of 2 mm on the filter cloth, and there is no crack and shedding soil layer. The thickness value is a common standard and is based on experience. When the pre-coating flow rate is too slow, the pre-coating powder is weak and unstable, or the flow rate is fast, the pre-coating pressure is increased, and the pressure is also increased when the liquid is filtered, which narrows the working pressure range. , shortening the filtration time affects the production capacity. Therefore, it is necessary to adjust the pressure to 0.5~1.5kg/cm2 after pre-coating and after writing, and then filter.
3. If the work needs to be suspended during the production process, first close the outlet valves 6 and 5, then close the inlet valve 7, and then stop the pump 8. In this way, the pressure in the machine chamber is increased. When starting the work again, the pump 8 is first started, the inlet valve 7 is opened, and the outlet valve 5 or 6 is opened. Why keep the pressure inside the filter? It does not leave the layer of diatomaceous soil that has been placed on the filter cloth. Conversely, the liquid and pressure in the machine are not maintained. When the work starts for the second time, the pump has a high flow velocity and a large impact force, so that the soil layer on the filter cloth falls off. Therefore, the filtered liquid is opaque and clear, and it is necessary to restart the work according to the use procedure, so as not to affect the normal productivity. With the continuous development of the diatomite filter industry, more and more enterprises have joined the diatomite filter industry, such as unique processing technology, excellent production quality, perfect testing and testing, and adhere to the high technology and high quality of the products. High stability main filtration equipment includes: stainless steel bag filter, filter filter, diatomaceous earth filter, stainless steel precision filter, stainless steel self-cleaning filter, non-standard filter, filter, plate and frame filter press Belt press filter, centrifuge, diatomaceous earth filter, liquid filter bag, and folding filter are ideal choices for solid-liquid separation at home and abroad. They are widely used in pharmaceutical factories, sugar factories, ceramic factories, fishing boats and Paper, environmental protection, printing and dyeing, chemical, environmental protection, sewage treatment and other industries.
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