Evaluating Foundry: Molding Emission Reduction Through a Slurry

The green sand metalcasting process generates emissions during pouring, cooling and shakeout because of the decomposition of organic materials that exist in the prepared molding sand. The selection of molding additives and core processes has been the historical method of reducing these emissions. Th...

Full description

Saved in:
Bibliographic Details
Published inModern Casting Vol. 111; no. 7; pp. 32 - 37
Main Authors Steele, Robert, Imerys, Sandra Böhnke, Lafay, Patricia, Lafay, Victor
Format Trade Publication Article
LanguageEnglish
Published Des Plaines American Foundry Society 01.07.2021
Subjects
Additives
Adsorption
By products
Carbon monoxide
Clay
Cooling
Dust
Dust collectors
Dust control
Emission analysis
Emissions control
Environmental impact
Foundries
Foundry sands
Green sand casting
Metal working
Microprocessors
Minerals
Molding (process)
Organic materials
Pouring
Sandblasting
Slurries
Viscosity
Online AccessGet full text

Cover

More Information
Summary:The green sand metalcasting process generates emissions during pouring, cooling and shakeout because of the decomposition of organic materials that exist in the prepared molding sand. The selection of molding additives and core processes has been the historical method of reducing these emissions. Through the introduction of a slurry that was recovered from a foundry green sand dust collection, a sustained reduction in emissions can be achieved. In a recent trial, two foundry evaluations were selected to demonstrate the impact a slurry has on the emission of prepared green sand. The foundries are referenced as "Foundry A" and "Foundry B". The dust collection process included only dust from the green sand process, including muller/mixer, pouring, cooling and shakeout. It does not include the dust collectors located in the melt area or the sandblasting area for the production of the slurry. The slurry generated from each foundry's dust collection was used in that specific foundry's trial.
ISSN:0026-7562
2376-4430