Method for constructing enamelled storage tanks and silos

1. A production process for flexible thin double-sided enameled steel, comprising:

unrolling a roll of thin-walled steel;

coating the thin walled steel with enamel on both sides; and

guiding the thin walled steel through an enamel furnace by means of pinch rollers that are outside of the enamel furnace and which continuously convey the thin-walled steel, which is a hanging steel band, through the enamel furnace,

whereby the enamel is fired at a high temperature greater than 500° C. on both sides without damaging the surface of the enamel coating.

2. A method for constructing enameled storage tanks or silos, comprising:

constructing the storage tank or silo from segments of non-enameled thick-walled steel that are fastened together on a construction site by means of welding;

grinding smooth and sandblasting the segments of non-enameled thick-walled steel; and

cladding with a double-sided enameled flexible thin-walled steel plate on an inside and an outside of the storage tank or silo, and an enameling temperature is at least 500° C.,

wherein the thin double-sided flexible enameled steel plates are glued with a suitable adhesive that presents sufficient adhesion, or with a two-components adhesive based on polyurethane, onto the segments of non-enameled steel fastened together.

3. A method for constructing enameled storage tanks or silos, comprising:

constructing the storage tank or silo from segments of non-enameled thick-walled steel that are fastened together on a construction site by means of welding; and

cladding with a double-sided enameled flexible thin-walled steel plate on an inside and an outside of the storage tank or silo, and an enameling temperature is at least 500° C.,

wherein the thin double-sided flexible enamelled steel plates are affixed in horizontal, vertical or long helical strips, and

the horizontal, vertical or long helical strips are joined to one another by means of a horizontal, vertical or long helical thin strip of enamelled thin steel that is bonded over the two strips to be joined together or by sealing the joints between the vertical, horizontal or helical strips with a silicone-based sealant, and which can be applied using an injection system.

4. The method according to claim 3 , wherein the long helical strip of thin flexible double-sided enameled steel partly overlaps the lower part of the long strip, the overlapping part is glued to a lower part of the strip, thereby sealing a joint that arises between successive windings of the thin steel plate.