Hot clinker conveying
Magaldi Superbelt®

The Magaldi Superbelt® is a steel belt made of partially overlapping steel pans bolted onto a steel double-wire mesh, thus forming a virtually sealed belt conveyor.

The patented method of connecting the pans to the mesh belt leaves all elements free to thermally expand in any direction without permanent deformation. As a result, the Superbelt® withstands temperatures higher than any other known conveyor. Its design is based on a multi-link concept. Even if the double-wire mesh is severely damaged, the conveyor continues to run without sudden failures and the plant operators can schedule its maintenance according to operation needs.

Moreover, the steel belt is supported by carrying idlers across its entire width in order to withstand heavy mechanical loads. Next to the loading points, the idlers can be closely spaced or mounted onto a shock absorber frame. The Superbelt® conveys materials very slowly without any vibrating or shaking, thus no dust is released externally and noise is at minimum levels.
This contributes to a healthy and more comfortable work environment for plant operators. In a cement plant, the Superbelt® overcomes the limitations of conventional conveyors (e.g. rubber belt or pan conveyors).

The retrofit is advised when rubber belts or pan conveyors, operating under extreme conditions, show heavy and frequent maintenance problems or high operating costs (e.g. for cleaning due to material leakage while conveying).

The main advantages of the Magaldi Superbelt® applied to clinker handling are:

• accidental shutdowns are virtually eliminated due to the steel belt damage-tolerant design;
• in conventional pan conveyors the replacement of a component (e.g. a wheel, or a chain link or a rail section) always causes a stoppage of both the conveyor and the upstream equipment. The Magaldi Superbelt® conveyor can continue to work even if several links of the double-wire mesh are broken. Immediate replacement is not required and the main maintenance activities can be postponed and carried out during the planned outage;
• the belt ensures perfect sealing between the steel pans so that fine residuals cannot leak externally;
• high temperatures and tear problems are resolved thanks to the patented method of connecting the pans to the mesh belt, which leaves all elements free to expand in any direction;
• the installation of the belt can be carried out using the existing frame of a rubber belt conveyor with minor modifications;
• wear in the belt is negligible since the material is slowly conveyed with no relative motion against steel parts;
• the belt noise is at minimum levels, approximately < 65 dB(A), similar to that of a rubber belt conveyor.