echemi logo
Product
  • Product
  • Supplier
  • Inquiry
    Home > Active Ingredient News > Drugs Articles > Common faults of filter plate of plate and frame filter

    Common faults of filter plate of plate and frame filter

    • Last Update: 2013-05-30
    • Source: Internet
    • Author: User
    Search more information of high quality chemicals, good prices and reliable suppliers, visit www.echemi.com
    I Analysis of the filter plate loosening or even oil leakage of the plate and frame filter: the hydraulic system of the plate and frame filter mainly provides pressure When the oil injection in cavity a increases, the piston moves to the left, pressing 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 II Fault analysis of the filter plate of the plate and frame filter walking slowly or even falling off due to deviation: sometimes, the filter plate of the plate and frame filter will walk slowly or even fall off due to too much oil and dirt on the guide rod 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 Analysis on the groove mark fault of the filter plate of the plate and frame filter: after several years of use, some groove marks are washed out at the corners due to some reasons Once the groove mark appears, it will expand rapidly until it affects the formation of filter cake At first, the filter cake becomes soft and then becomes semi slimy After Zui, 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 repairing agents, but the effect was not good all the time When Zui recently changed to oil surface repairing agent, the situation finally turned The trial effect was very good, and the sealing effect was achieved
    Solutions: 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 together to make the repairing agent and the filter cloth of the filter stick together, and at the same time flatten the groove 5 After a period of extrusion , the viscose is naturally formed, no longer changing, and can be used normally at this time IV analysis on the uneven formation or failure of the filter cake of the plate and frame filter: there are many reasons for the uneven formation or failure of the filter cake of the plate and frame filter This phenomenon can be caused by insufficient or too thin material supply or blockage In order to find out the causes of these faults in detail, Zui finally found the exact problem, and then treated the problem Solutions: the main solutions are: increasing the supply, adjusting the process, improving the supply, cleaning the filter cloth or replacing the filter cloth, cleaning the blockage, cleaning the supply hole, cleaning the drain hole, cleaning or replacing the filter cloth, increasing the pressure or pump power, starting at low pressure, increasing the pressure, etc V analysis on the damage of plate and frame of plate and frame filter: the causes of the damage of filter plate are as follows: 1 When the filter plate of filter is not cleaned thoroughly, sometimes the media will leak out Once the media leaks out, the edge of plate and frame will be washed out one by one The pressure cannot be increased and mud cake cannot be formed due to the large amount of media leakage 2 If the outlet is blocked by solid or the feeding valve or outlet valve is closed when starting, there is no leakage of pressure, so as to cause damage 3 When the material is not enough or the material contains unsuitable solid particles, it will also cause the plate frame itself to suffer too much stress and damage 4 When the sludge is too thick or dry, the feeding port will be blocked At this time, there is no medium between the filter plates, only the pressure of the hydraulic system itself At this time, the plate itself is easily damaged due to long-term pressure Corresponding solutions: 1 Use the nylon cleaning scraper to remove the mud at the feed inlet; 2 Complete this cycle and reduce the filter plate volume of the filter; 3 Check the filter cloth, clean the drain outlet, check the outlet, open the corresponding valve and release the pressure; 4 Carefully clean the filter plate and repair the filter plate of the filter
    This article is an English version of an article which is originally in the Chinese language on echemi.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to service@echemi.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

    Contact Us

    The source of this page with content of products and services is from Internet, which doesn't represent ECHEMI's opinion. If you have any queries, please write to service@echemi.com. It will be replied within 5 days.

    Moreover, if you find any instances of plagiarism from the page, please send email to service@echemi.com with relevant evidence.