A new perlite expansion process has been designed and a vertical electrical furnace for perlite expansion has been constructed in our laboratory in order to overcome these drawbacks, enabling ...
the expansion process, which increases usable output and controls the uniformity of product density. In the furnace, the perlite ore reaches a temperature of 760 to 980 E C (1400 to 1800 E F), at
3/4/2014· Applications. Although the major perlite markets are for expanded perlite, crude perlite ore is used in certain industrial applications including sandblasting, as a slag coagulant, special casting sand, and metal finishing (Perlite Institute, 2009).Major markets for expanded perlite in the United States (Austin & Barker, 1998; Bolen, 2012; Ennis, 2011) vary by grade and include formed products ...
A thermally efficient process for the expansion of perlite ore is described. The inlet port and burner of a perlite expansion chamber (preferably a vertical expander) are enclosed such that no ambient air can enter the chamber. Air and fuel are metered to the burner with the amount of air being controlled such that the fuel/air premix contains at least enough air to start and maintain minimum ...
Perlite Expansion Furnace use six microprocessors to full-automatically control the the technology curve production process of perlite expansion. The heat-insulated mortar vitrification microsphere expansion furnace was successfully invented in Feb, 2003 by our president, a …
Currently applied perlite expansion technology suffers numerous technical disadvantages, which adversely affect product quality and limit the range of its applications. To overcome these established drawbacks, a new perlite expansion process has been designed on the basis of a vertical electrically heated expansion furnace.
American Garden Perlite is a perlite expansion facility, founded in 2015. We are located in the small town of Lake Wales, Florida. We start our process by obtaining high quality ore from our sister company, Cornerstone Industrial Minerals Corporation which is located in Lakeview, Oregon. They have been providing perlite ore nationwide since 1998.
Our passion for perlite goes beyond perfecting the expansion process. We are expert developers and problem-solvers of anything that has to do with perlite. Bring us your challenges and we will work together to deliver the best solutions. You'll find our services and personalized attention are bar none!
model permit for vermiculite exfoliation and expansion of perlite; Vermiculite exfoliation and expansion of perlite is a 'Part B' activity under the local authority pollution prevention and ...
after heat treatment. The perlite sample from Bergama 01 showed the largest expansion in all samples. As results of the analyses, the amount of crystal and water release in the perlite which had an influence on expansion process were consistent with the literature.
The expansion process is caused by the presence of water in the crude rock. When perlite ore is rapidly heated to above 850°c this water vaporises and causes the softened rock to expand. Tiny glass-like bubbles are produced which account for the lightweight and exceptional physical properties of expanded perlite.
Perlite Expansion Furnace. Perlite Expansion Furnace are specially used to manufacture closed pearlites, hollow pearlite vitrification microsphere.
The Expansion Process. Perlite ore is a glassy volcanic rock with a vitreous, pearly luster and a characteristic concentric or perlitic fracture. Closely related to pumice, it differs from other volcanic glasses principally in its combined water content, which produces the unusual characteristic of "popping"—expanding up to 20 times its ...
The Expansion Process . This expansion process also creates one of perlite's most distinguishing characteristics: its white color. This expansion is due to the presence of two to six percent combined water in the crude perlite rock. Expanded perlite can be manufactured to weigh as little as 2 pounds per cubic foot (32kg/m3), making it adaptable ...
The dust fraction of expanded perlite is bonded to the larger sized grains by spraying finely atomized paraffin at a temperature of less than 130° C. upon the perlite which has been cooled to a temperature of less than 130° C. In a second embodiment of the invention, the perlite is treated with a water repellent process prior to the paraffin treatment.
8/31/1982· What is claimed is: 1. In a perlite expansion process wherein perlite ore is charged to a flame zone in an expansion chamber where it is rapidly heated and expands, and is thereafter transported out of the flame zone by entrainment in the exhaust gas stream of the flame zone, and wherein said expansion chamber has an inlet port at one end and an outlet port at the other end and …
3/17/2016· SINODER Supply Closed or Open type natural Gas Perlite Expansion Furnace and Coal gas perlite expansion plant We build Vertical Perlite Expansion Furnaces and Complete Perlite Expansion Systems.
Preheating the material to approximately 430°C reduces the amount of fines produced in the expansion process, which increases usable output and controls the uniformity of product density. In the furnace, the perlite ore reaches a temperature of 760 to 980°C, at which point it begins to soften to a plastic state where the entrapped combined ...
A thermally efficient process for the expansion of perlite ore is described. The inlet port and burner of a perlite expansion chamber (preferably a vertical expander) are enclosed such that no ambient air can enter the chamber. Air and fuel are metered to the burner with the amount of air being controlled such that the fuel/air premix contains at least enough air to start and maintain minimum ...
- The Leading Supplier of Perlite Furnaces and Perlite Expansion Systems. - The Choice of Perlite Market Leaders Around the World. - Over 40 Years Experience. - Over 300 Systems supplied in 40 Countries. Incon Corporation specializes in the design, manufacture, service, and support of perlite furnaces, perlite process equipment, and ...
9/22/1981· I claim: 1. In a process for the expansion of perlite in which perlite granules are expanded by rapid heating in a flame zone in an expansion chamber, said flame zone is created by the combustion of combustible fuel in the presence of air, said combustion is initiated by a burner, and said perlite after expansion is conveyed out of said expansion chamber entrained in the flow stream formed of ...
The expansion process is caused by the presence of water in the crude rock. When perlite ore is rapidly heated to above 850°c this water vaporises and causes the softened rock to expand. Tiny glass-like bubbles are produced which account for the lightweight and exceptional physical properties of expanded perlite.
The closed cell perlite is also called glazed hollow bead. The product requires perlite ore with special particle size to take expansion in the furnace. By this way, especially the precisely controlling the temperature and the material's retaining time in furnace, the surface of expansion perlite shall be melted and close all air cells.
Download Citation | A mechanism of perlite expansion | We describe a novel process for expanding perlite rocks, at temperatures from 1220 to 1370 K and elevated pressures, (3.3–16.0) 105 Pa, in ...
after heat treatment. The perlite sample from Bergama 01 showed the largest expansion in all samples. As results of the analyses, the amount of crystal and water release in the perlite which had an influence on expansion process were consistent with the literature.