A multi-stage filtering device for inorganic pigment production

By designing a multi-stage filtration device, combining a vibrating motor anti-clogging screen, centrifugal separation, and precision filtration, the problems of easy clogging and low filtration efficiency in inorganic pigment production are solved, achieving a high-efficiency, low-consumption continuous filtration effect.

CN224345569UActive Publication Date: 2026-06-12NANJING PMT PIGMENT TECH CO LTD
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING PMT PIGMENT TECH CO LTD
Filing Date
2025-07-03
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

In the production process of inorganic pigments, traditional filtration technology suffers from problems such as easy clogging of filter screens, low filtration efficiency, high energy consumption, low degree of automation, and difficulty in balancing precision, making it impossible to achieve efficient, low-consumption, and maintenance-free continuous filtration.

⚗Method used

It adopts a multi-stage filtration device, including a primary filtration unit, a cyclone unit and a precision filtration unit. It combines a vibrating motor anti-clogging screen, centrifugal separation, medium particle centrifugation, sintered filter element precision filtration and backwash pipeline timed flushing, and adds a preheating module to reduce viscosity. The synergistic effect improves the filtration effect.

🎯Benefits of technology

It improves filtration accuracy, reduces the impurity content of the finished product, extends the filter element life, increases the throughput of high-viscosity slurries, simplifies maintenance, and achieves efficient and low-consumption continuous filtration.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

This application discloses a multi-stage filtration device for inorganic pigment production, belonging to the technical field of inorganic pigment production equipment. It includes a device body, internally comprising a primary filtration unit, a secondary cyclone unit, a precision filtration unit, and a heating module. The design is novel and the device ingenious. The slurry enters the coarse filter screen through the feed inlet. A vibrating motor prevents screen clogging. After preliminary filtration, the slurry enters the cyclone chamber, where centrifugal force separates medium-sized particles. Finally, it undergoes precision filtration through a sintered filter element. The backwash pipeline periodically reverse-flushes the filter element, triggering a backwash program every two hours for 30 seconds. Before shutdown, the feed is shut off, and the backwash is run three times. This improves filtration accuracy and effectively reduces the impurity content of the finished product. The backwash design extends the filter element's lifespan and maintenance cycle. The synergistic effect of cyclone and vibration increases the throughput when processing high-viscosity slurries, greatly enhancing the device's practicality.
Need to check novelty before this filing date? Find Prior Art