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Float Glass Plant

What is float glass?
The float process - invented by Sir Alastair Pilkington in 1952, makes flat glass. This process allows the manufacture of clear, tinted and color glass for buildings, and clear and tinted glass for vehicles.

  • Overall Production Line Sketch
  • Raw Material and Composition
  • Furnace and Melting
  • Furnace and Melting
  • Furnace and Melting
  • Furnace and Melting
  • The Tin Bath
  • The Lehr and Cold End
  • Stocks and Shipping


What do we offer?
    Engineering Services:
  • float glass consultancy
  • comprehensive feasibility study
  • project management
  • basic and detailed engineering
  • civil works and utility requirements
  • procurement
  • supply, construction, warm-up and start-up supervision
  • plant commissioning, manufacturing and production quality improvement
  • process equipment development and design
  • plant technical audits, process improvement services
    Equipment Supplies and Processes:
  • complete turnkey green field float glass plants up to 1000 tons per day
  • glass melting energy saving using oxy fuel technology
  • on-line glass coating
  • tin bath atmosphere recycling
  • glassmaking equipment design and building

Float Glass Plant  - General Specification
    Items to be evaluated for 600 t/d melting capacity float glass plant:
  • Surface Area: L650 m x W250 m (200 min). Possibility to install 2nd line up to W400m.
  • Ground/Soil Quality: Ground more-or-less flat max longitudinal Dh is 9m transversal is 2 m, low altitude, low seismic risk area.  Preferable resistance: 1.5 - 2.0 bar, good homogeneity. Underground water layer; min 10 m below surface if possible.
  • Location: Access to motorway network, heavy road traffic 30 tonne tracks, rail track possibility on site, Marine port location easy access, short distance.  If canal location available, navigable 1,000 - 1,200 tonne barges . Avoid close location to airports; due to the chimney risk (± 85 m high) to air traffic, 100 km max.
  • Utilities:
    • Un-interruptible Electricity supply, preferably from two distinct sources. Consumption 365 days/year of 3.0 - 3.5 MW.  High voltage supply e.g.: 2 x 63 kV.  Installed power ± 12 MVA.
    • Un-interruptible natural gas supply, ±130,000 Nm3/day, constant consumption 365 days/year, good calorific value, high pressure pipe (7-40 bar), GVB working pressure; 250 mbar.  Proximity to supply.  Connection time.
    • Water; 350 - 2,000 m3/h, drinking and industrial quality. Depends on cooling water design.
    • Heavy fuel oil supply proximity depot: 90 tonnes/day
    • N2; 1,500 - 2,000 Nm3/h, Local presence of Air Liquide, Linde, Air Products, etc.
    • H2; 80 - 150 Nm3/h, Local presence of Air Liquide, Linde, Air Products, etc.
    • Connection to sewage system, waste water
  • Raw materials: To be supplied to site.  Proximity to sources and transport is critical

      Sand 138,500 tonnes/year
      Soda Ash  41,300 tonnes/year
      Limestone  11,500 tonnes/year
      Dolomite   31,500 tonnes/year
      Soda sulphate  2,500 tonnes/year
      Feldspar  4,700 tonnes/year

  • Local Infrastructure: Skilled manpower, Industrial area, working in 3 shifts 24 h/day, proximity to services, schools and universities.  No radical trade union culture.  Availability of sub-suppliers.  Industrial pollution norms.  Environmental impact, other ecological issues.
  • Subsidies: Direct aid, corporate and local tax levels, tax incentives, etc.