Application of 2BE Liquid Ring Vacuum Pump in Ceramic Plants

The 2BE liquid ring vacuum pump is a core supporting equipment for ceramic production. It adapts to the harsh working conditions of ceramic processes featured by high humidity, large water vapor and clay dust. With the core advantages of high-vacuum degassing, pollution resistance, flexible transmission and stable operation, it runs through the whole process of raw material treatment, forming and sintering, and is the key equipment to guarantee ceramic body quality and improve finished product yield.

1. Main Application Scenarios

1. Pugging Process

Matched with vacuum de-airing pug mill, it creates a high negative pressure of -0.092~-0.098MPa in the vacuum chamber to degas, dewater and densify clay:

Remove 18%~25% moisture and micro air bubbles in clay, avoiding blistering, layered cracking, pinholes and black cores during drying and firing.

Compress clay particles to reduce gaps; the bulk density increases by 3%~5% with better plasticity and higher ceramic body strength.

Assist dewatering to reduce moisture content by 1%~2%, lower drying energy consumption and shorten the production cycle.

2. Slurry Treatment

Vacuum degassing of slurry after wet ball milling: Eliminate air bubbles mixed in during grinding to make the slurry uniform and fine, preventing pores and rough surface on green bodies after slip casting.

Vacuum dewatering / concentration: Reduce slurry moisture content, increase slurry concentration, lower the load of subsequent forming and drying, and adapt to high-pressure slip casting, roller forming and other processes.

3. Forming Process

Slip casting: Quickly exhaust air from the mold cavity, help slurry fill every corner of the mold evenly, reduce material shortage and bubble defects, and improve the density and surface smoothness of green bodies.

Dry pressing / isostatic pressing: Pre-vacuumize to remove air among raw particles, improve pressure transmission efficiency, ensure uniform body density and avoid delamination and cracking.

4. Sintering and Post-treatment

Vacuum exhaust for sintering furnace: Discharge air, water vapor and impurity gas inside the furnace to prevent high-temperature oxidation and black cores of green bodies, accurately control sintering atmosphere, and improve glaze gloss and product stability.

Vacuum drying / glazing: Dry green bodies at low temperature to avoid high-temperature cracking; glaze adheres evenly under vacuum, reducing pinholes and glaze shrinkage defects.

2. Core Advantages of 2BE Liquid Ring Vacuum Pump

1. Pollution Resistance and Anti-jamming, Suitable for High Humidity and Dust Conditions

Using clean water as working fluid, the pump chamber is continuously flushed by water, and clay dust is discharged with water. There is no risk of vane wear or jamming, making it perfectly suitable for high humidity and dusty scenarios such as pugging and slurry treatment.

2. Stable High Vacuum and Thorough Degassing

It stably maintains a negative pressure above -0.092MPa, ensuring thorough degassing of clay and slurry, and meeting the high-quality requirements of high-grade porcelain, electric porcelain and industrial ceramics.

3. Flexible Transmission for Different Equipment

It supports direct-coupled drive, belt drive and gear reducer drive, matching pug mills and forming equipment of different power and speed with strong compatibility.

4. Reliable Operation for 24-hour Continuous Working

Simple structure without precise friction pairs, low vibration and low noise. It features corrosion resistance and wear resistance, capable of long-term continuous operation with low maintenance cost and long service life.

5. Isothermal Compression, Safe and Eco-friendly

Gas compression proceeds under isothermal condition, enabling it to pump flammable and explosive gas. It adopts clean water as working fluid with oil-free pollution, meeting the clean production requirements of ceramics. Only antifreeze needs to be added for stable operation in low-temperature environments.