US 6,823,607 B2 · Plant for the drying and treatment of pourable mineral material

Abstract

A plant for the drying and treatment of a pourable mineral material. The plant includes a combustion apparatus, introducing smoke gases into a rotary-driven rotary drum for cocurrently with the pourable mineral material. The rotary drum is inclined in the conveying direction, has installed fittings on the inner circumference and is connected sealingly at its outlet end to a shaft. The installed fittings in a front introduction region of the drum are transport blades. The shaft is put under a vacuum by means of a fan and is set up to take over the material and gas stream emerging from the rotary drum. A Venturi fitting is arranged coaxially in the rotary drum, upstream of the outlet, and a bypass for conveying air is arranged in the drum casing in the introduction region.

Claims10

Dependent claims

A plant for the drying and treatment of a pourable mineral material, comprising:

a rotary drum for conveying the pourable mineral material and including a drum casing, an introduction region, and an outlet end, the rotary drum being inclined in a conveying direction of the pourable mineral material and including a plurality of transport blades disposed in an introduction region of the drum;
a bypass disposed in the drum casing at the introduction region for conveying air;
a shaft in sealing connection with the outlet end and configured to receive the pourable mineral material from the rotary drum;
a combustion apparatus emitting smoke gases through the rotary drum cocurrently with the pourable mineral material;
a fan providing a vacuum in the shaft;
and
a Venturi fitting disposed coaxially in the rotary drum upstream of the outlet end.

4 more elements

Dependencies are inferred from the claim text.

Plant for the drying and treatment of pourable mineral material

Life of this patent

Plant for the drying and treatment of pourable mineral material

Life of this patent

Abstract

Claims10