Method for producing hot-mix asphalt
OwnerClaudio Macedo Nasser, Patricia Vasconcelos Correa Nasserinventors
Life of this patent
Estimating the term…
Abstract
There is described a hot-mix asphalt plant intended for the production of hot-mix asphalt using a full percentage of milled asphalt product or using cold ingredients and filler charge for producing first grade hot-mix asphalt, comprised of a circular chamber 2 adapted to receive and mix milled asphalt product with solid asphalt additive or to receive and mix the cold ingredients and a filler charge with liquid asphalt cement, provided with a circular tubular coil 104 for circulation of thermal fluid or gas, secured next to the lower side part of the circular chamber 102, adapted with electrical resistors 123 or gas-fueled heaters to produce thermal energy in the form of heat.
Claims8
A method of producing hot-mix asphalt using a full percentage of milled asphalt product and heating, drying and mixing using combined solar thermal energy (CSTE), wherein said method comprises the steps of:
- (a) providing a plant designed and built to produce hot-mix asphalt using a full percentage of milled asphalt product and heating, drying and mixing a material using combined solar thermal energy (CSTE), the said asphalt plant comprising:
- (1) a circular chamber adapted to receive the milled product and mix the same with solid asphalt additive or cold ingredients with a “filler” charge, at the speeds of 3.3 rpm, 6.6 rpm and 9.9 rpm;
- (2) a tubular coil adapted to the circular chamber with electrical resistors or gas-fueled heaters that is connected to a combined solar thermal energy module panel for producing thermal energy in the form of heat and heating and drying the milled asphalt product or the cold ingredients and the “filler” charge;
- (3) a combined solar thermal energy module panel adapted with a rectangular tubular coil with heating by sun radiation combined with electrical resistors or gas-fueled heaters to be automatically activated whenever there is no sunlight available;
- and,
- (4) a heat exchanger adapted with two pipe coils with thermal fluid or gas to preheat the cold ingredients and lower the temperature of the gasses being emitted into the atmosphere;
- (b) carrying the cold ingredients to the circular chamber;
- (c) carrying the “filler” charge to the circular chamber;
- (d) carrying the solid asphalt additive to the circular chamber;
- (e) heating and drying the cold ingredients and the “filler” charge in the circular chamber;
- (f) carrying the milled asphalt product to the circular chamber;
- (g) mixing the milled asphalt product with solid asphalt additive to produce recycled hot-mix asphalt in a quantity of up to 750 (seven hundred and fifty) tons per hour;
- and,
- (h) mixing the cold ingredients, the “filler” charge, and liquid asphalt cement to produce hot-mix asphalt in a quantity of up to 750 tons per hour.
Dependencies are inferred from the claim text.