Waste Treatment Technology in JAPAN
Recycling
Introduction
Braun tubes in TVs contain lead, and require large amounts of panel and funnel glass in the production process. Extracting panel and funnel glass from Braun tubes from TVs that have been thrown away for scrap both prevents harm to the environment and achieves economic recycling.
Recycling Capacity
Throughput 100,000 units/year (20" Braun tubes)
Average cullet Slightly more than 10 kg per unit
Flow Chart
Flowchart of Disposed TV Braun Tube Culletizer
Features
- Separated collection of panel and funnel glass
Panel and funnel glass, made of different materials, are separated by thermal strain for collection. This achieves efficient and economic recycling.
- Crusher and culletizer
The glass that is easiest to turn into cullets is culletized in a smelting furnace. Glass fragments are put to effective use as blast material.
- Dry/clean blasting
Impurities on the surface of funnel glass are removed by blasting. Use of glass powder as the blast material instead of alumina or other materials solves the problem of impurities being carried into the smelting furnace. Glass fragments generated in the culletizer are used as the powder substitute to achieve even more economical recycling.
PLANT DIVISION
ENVIRONMENTAL ENGINEERING Department 2
ShinOsaka Wako Bldg 7F
4-6-18 MIYAHARA YODOGAWA-KU
OSAKA 532 JAPAN
TEL: +81-6-350-3770 FAX: +81-6-350-3775