Method and apparatus for purifying the exhaust air of installations for consolidating molten substances
AssigneeSantrade Ltd.
InventorAxel Konig
Life of this patent
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Abstract
A molten substance is consolidated by being deposited onto a cooling belt which conveys the substance through a space formed between the belt and an overhead hood. The formation of exhaust dust from the substance is minimized by controlling heaters in the hood to vary the temperature along the space such that the saturation pressure in the space closely matches the vapor pressure of the substance as the substance travels through the space. Also, the hood is placed close to the cooling belt to minimize the velocity of vapors emitted from the substance within the space.
Claims11
In a method of consolidating a molten substance by depositing the substance onto a cooling surface, the improvement comprising minimizing the formation of exhaust dust from the substances including the steps of:
- A) conducting the deposited substance through a space, and
- B) controlling a saturation pressure within the space so as to minimize a difference between the saturation pressure and a vapor pressure of the substance as the substance travels through the space.
In an apparatus for consolidating a molten substance by depositing the molten substance onto a cooling conveyor belt, the improvement comprising a structure for minimizing the formation of exhaust dust from the substance, the structure including:
- a cooling surface for receiving and conveying the molten substance;
- a hood overlying the cooling surface to form therewith a space in which the substance is conveyed;
- and
- heaters for controlling the temperature in the space such that a difference between the saturation pressure in the space and a vapor pressure of the substance is minimized as the substance travels through the space.
Dependencies are inferred from the claim text.