riser cutoff & gate removal

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Presentation transcript:

riser cutoff & gate removal sand-binder mixing core forming core curing mold & core assembly scrap preparation mold pouring, cooling mold making metal melting slag, dross removal sand renewal shakeout riser cutoff & gate removal cleaning, finishing, coating QA / shipping Process Flow for Typical Green Sand Foundry

metal scrap, alloys, flux sand and binder sand-binder mixing PM metal scrap, alloys, flux core forming PM core curing VOC, HAP HC, CO PM, CO, VOC, HAP, MOx mold & core assembly cooling water scrap preparation PM mold pouring, cooling PM, NOx, CO, SO2 mold making metal melting sand slag, dross removal sand renewal shakeout PM acidic wastewater PM, HAP, VOC riser cutoff & gate removal scrap metal, abrasives PM PM, VOC slag, dross spent RM waste sand, metals cleaning, finishing, coating wastewater with solvents, oils sludge QA / shipping input vapor waste aqueous waste solid waste rejects, packing material Materials Flow for Typical Green Sand Foundry

1.0-3.0M BTU/ton saleable casting sand-binder mixing core forming 1.0-3.0M BTU/ton saleable casting core curing mold & core assembly scrap preparation mold pouring, cooling 0.6 M BTU/ton mold making metal melting slag, dross removal sand renewal shakeout Cupola melting 5.8 Coke 1.1 Electricity 1.6 Natural Gas 0.1 Oxygen Electric melting 4.3-4.8 Induction 4.3-5.2 Electric Arc 5.2-7.9 Reverb Fuel fired melting 1.8-6.8 Crucible 2.5-5.0 Reverb riser cutoff & gate removal 1.0 M BTU/ton cleaning, finishing, coating QA / shipping Energy Requirements for Typical Green Sand Foundry

Relevant Federal Legislation Resource Conservation and Recovery Act ID of solid and hazardous wastes standards for generators of hazardous waste land disposal restriction used oil management standards underground storage tanks boilers and industrial furnaces Comprehensive Environmental Response, Compensation Liability Act Emergency Planning and Community Right-to-Know Act Clean Water Act Safe Drinking Water Act Toxic Substances Control Act Clean Air Act Toxic Release Inventory (TRI) required of 654 of 2800-odd foundries in 1995 “TRI applies to companies that utilize 25,000 pounds of the approximately 600 designated chemicals or 28 chemical categories specified in the regulations, or uses more than 10,000 pounds of any designated chemical or category” State and local legislation…