METHOD OF PRODUCTION OF BINDERS FROM STILL RESIDUES OF OIL-AND-FAT INDUSTRY AND SOLAR UNIT FOR REALIZATION OF THIS METHOD Russian patent published in 2006 - IPC C11B11/00 F24J2/14 

FIELD: solar engineering; processing residues of oil-and-fat industry by means of parabolic cylindrical solar concentrators.

SUBSTANCE: proposed method includes cleaning the still residue from mechanical impurities, filtration, determination of amount of required additives for obtaining preset properties of final product, loading the still residues into receiver-reactor of parabolic cylindrical solar concentrator, heating the still residue to temperature of 105-110°C and keeping it till dehydration removing vapor from reactor zone. For obtaining semi-finished product, mono-ethanol in the amount of 0.003% of total mass and organo-silicon fluid are introduced into dehydrated product and product is subjected to light-and-heat treatment at temperature of 110-150°C at continuous mixing. For obtaining bitumen-like binder, temperature of semi-finished product thus obtained is brought to 180-260°C and product is subjected at continuous mixing to radiation by concentrated sunlight at probable correction of composition of semi-finished product by addition of plasticizers, resin and oil, after which bitumen-like binder is concentrated by evaporation at temperature of 260-300°C, cooled, packaged and placed in storage. Pitch is obtained as residue. After unloading, the reactor is charged again and process is repeated. Solar unit proposed for realization of this method includes device for solar heating of still residue, parabolic cylindrical solar concentrator with bearing swivel mechanism and Sun tracking device, receiver-reactor filled with still residue cleaned from mechanical admixtures which is made in form of tube with port transparent to sunlight and heat insulation on non-radiated side, pipe unions distributed in length of receiver-reactor and connected with water vapor discharge valve and with injector for injecting chemical additives, loading and unloading devices, cooler for cooling the products, mechanism for holding the receiver-reactor in position ensuring escape of water vapor at turn of concentrator which is made in form of plumb bob and fasteners for securing the receiver-reactor on bearings.

EFFECT: reduction of energy intensity of process; low cost of product.

3 cl, 2 dwg