PGD Operating principle

The material to be separated is added into the high-speed rotating centrifuge drum through the feed tube. Under the action of centrifugal field, the material is filtered through the filter cloth, the liquid phase is discharged through the outlet tube, and the solid phase is intercepted in the drum. When the material is full, stop feeding, wash the cake, and filter out the washing liquid. The centrifuge continued to rotate and the cake was dried. After the filter cake meets the separation requirement, the centrifuge reduces the speed and scrapes the filter cake down from the bottom and discharges it out of the machine through the scraper. The centrifuge reduces the speed again, and the pneumatic bag shaking device moves up and down to shake off the residual filter cake, so as to realize the complete removal of the filter cake, thereby realizing the regeneration of the filter cloth.

PGD Main Features

• In addition to all main features of the LGZ series centrifuge, the PLD series centrifuge features as follows:
• Removing the residual solid cake by bag-shaking method. Eliminate all solid cakes left over the process of scraper discharging through reciprocal movement of the pneumatic pulling bag device, to realize complete discharging and filtering cloth regeneration.
• Design of removable lip ring in the basket with reliable self-locking, which is easy for changing the filter cloth.
• Built-in bag pulling cylinder, double airway air intake, improve pulling force, reset buffer device, simple and reliable structure. With greater force, better residual cake removal effect, maintenance more convenient and fast.
• Fully-enclosed discharge hopper design separating the material from the driving components of the centrifuge.

In solid–liquid separation processes, incomplete cake removal can significantly reduce efficiency and increase downtime. This article explains why automatic vertical scraper centrifuges are an effective solution, helping users understand how advanced scraping and bottom discharge designs address common discharge challenges in industrial centrifugation.

PGD Optional configurations

• Shape Structure:Large Open Cover, Full Open Cover and Flat Cover
• Distribution mode:Inclined plate distributor, lateral distributor and intermediate distributor
• Scraper discharge:Hydraulic and pneumatic
• Motor Drive:General Motor, Frequency Converter Motor, Explosion-proof Motor, Energy Consumption Brake or Feedback Brake
• Safety protection:Explosion proof, vibration protection, full material detection protection, open cover protection, temperature protection, electromechanical interlocking, speed monitoring, overload protection, nitrogen protection system
• Surface treatment:Mirror polishing, matte treatment, passivation treatment
• Electrical Components:Brand Supply
• Residual cake treatment:Shaking device to remove residual cake
• Programming Control:Programmable Control Mode and DCS Control Mode
• On-line cleaning:Cleaning balls and spray pipes
• Nitrogen Protection:Automatic Nitrogen Supply Device, Liquid Packaging Device, Gas-liquid Separator, Oxygen Content Detection System
• Coating treatment:Lining HALAR (F30), F40, F46, PFA