Method and installation for producing bricks
AssigneeSalviati Impianti S.p.A.
InventorAntonio Salviati
Life of this patent
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Abstract
The invention is concerned with the forming, drying and firing steps in brick manufacture. In accordance with the present invention there is a preheating step followed by a hot gas co-current drying. This is carried out in a tunnel with a conveyor.
Claims27
A method for producing bricks in a brick producing apparatus wherein said bricks are dried and fired in a single operating unit and wherein said bricks are transported through said unit, comprising the steps of:
- preheating green bricks having a total moisture content of 13-15% to a wet-bulb temperature of 45.degree.-100.degree. C. in a co-current stream of hot gases having a predetermined moisture content;
- drying said preheated bricks in a co-current stream of hot gases;
- heating said dried bricks in preparation for firing;
- firing said heated bricks;
- and
- cooling said bricks, at least a portion of the gases from said heating step being utilized in drying said green bricks and at least a portion of the gases from said drying step being utilized in said preheating and said cooling steps, respectively.
A method for producing bricks in a brick producing apparatus wherein said bricks are dried and fired in a single operating unit and wherein said bricks are transported through said unit, comprising the steps of:
- preheating green bricks having a total moisture content of 13-15% to a wet-bulb temperature of 45.degree.-100.degree. C. in a co-current stream of hot gases having a predetermined moisture content;
- drying said preheated bricks in a co-current stream of hot gases which includes hot gases from said preheating step;
- heating and subsequently firing said dried bricks in a counter-current stream of gases which is separated from said co-current stream of hot gases;
- and
- cooling said bricks.
Dependencies are inferred from the claim text.