Working principle of the salt mud filter press

1 Operation of the XM125/1250-U plate and frame filter press: Filter area: 125 m2; it uses hydraulic pistons to drive the filter plates. Number of filter plates: 47; Volume of filter chamber: 2.26 m3. U – Plastic PP; M – Cross-flow type. 2. Operating procedures for the filter press: Sequence Number, Procedure Requirements, Time Required. 1. Compressing the filter plates: Before compression, it is necessary to check that there are no wrinkles on the sealing surfaces of the filter plates and on the filter cloth. 2 Automatic pressure retention: Set pressure at 15 MPa. 3 Feed filtration: Start feed pump P1109; pressure of 4.0–4.5 kg/cm2 for 240–360 minutes. 4 Washing of the filter cake: Water pressure of 3.5–4.0 kg/cm2 for 10 minutes. 5 Air blowing: Compressed air is introduced through the washing pipe; pressure of 5–6 kg/cm2 for 10 minutes. 6 Discharging: Release the filter plates to allow automatic discharge over 60 minutes. 7 Cleaning of the filter cloth: 10 minutes. Total time: 330–450 minutes. 3 Troubleshooting of plate and frame filters: Sequence, fault symptoms, causes, and solutions. 1 Leakage between filter plates: ① Insufficient oil pressure ； ②There is debris between the filter plates ； ③The filter cloth is uneven and folded ； ④Filter plate deformation ； ⑤The feed pump pressure is too high. ①Check the oil pump system ； ②Clean the sealing surface ； ③Organize the filter cloth ； ④Replace filter plate ； ⑤Reduce the feed pressure. 2 The filtrate is not clear. ① The filter cloth is damaged ； ②Improper selection of filter cloth ； ③The filter cloth has large openings ； ④The seam of the filter cloth has torn. ①Replace the filter cloth ； ②Reselect the filter cloth ； ③Replace the filter cloth ； ④Suture again. 3 Compression return: No action. ① Low oil level ； ②The motor is not rotating in the correct direction ； ③The relief valve is damaged ； ④The solenoid valve is not functioning ； ⑤The plunger pump is broken. ①Keep going! ； ②reversal ； ③Replace the relief valve ； ④Inspect and replace ； ⑤Replace the pump after maintenance. 4 Insufficient hydraulic pressure ① Low oil level ； ②Internal valve leakage ； ③Solenoid valve failure ； ④Plunger pump accident. ①Keep going! ； ②Repair ； ③Update ； ④Replace the plunger pump. 5 No pressure holding ① Oil leakage in the pressure holding pipeline ； ②The pressure holding valve is stuck ； ③Oil cylinder seal leakage. ①Repair ； ②Clean up ； ③Replace. 6 Crawl ①Low oil level ； ②There is air in the cylinder ； ③The cylinder and piston are too tightly fitted together. ①Keep going! ； ②Run back and forth a few times ； ③It will be fine after running for a while.

Thank you! Are there any filter presses of other structures and types used in the chlor-alkali industry?