Cooling screw conveyors
Cooling Screws are used for either rapidly cooling or heating the conveyed material. The conveying screw and frame act as heat exchangers using a liquid (water or water-glycol solution) for heat transfer. The material is cooled via a coolant flow inside the conveying screw and in the frame of the conveyor.
Laitex designs and manufactures Cooling Screw conveyors for extreme conditions, both vertical and horizontal conveying. Through a comprehensive development work, we’ve designed a product that is both a cost-effective and long-lasting solution for conveying and cooling bulk material.
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COOLING SCREWS |
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| Specifications for typical applications | |
| Inclination | Up to 9° |
| Width | Up to 1000 mm |
| Length | Up to 10 m |
| Construction details | |
| Construction materials | Carbon-, stainless, wear resistant, high temperature or heat resistant steels. Hard facings and other materials on request. |
| Conveying element | Application specific screw flight design. |
| Drive unit | Gear motor with direct drive. |
| Components | Service hatches for inspection and service. Standard pillow block bearing housings with radial roller bearings. Stuffing boxes for shaft sealing (Optionally boxes with air input). Sensors for rotation and blockage. Rotating coupling for cooling water feeding. |
| Safety | Guards and protective devices according to SFS-EN 618. |
| Other options are available on request | |
| ATEX directive (2014/34/EU) | |
| (Activated Carbon) All Laitex devices can be equipped to fulfil the requirements of ATEX Equipment group II in categories 2 G, D and 3 G, D (suitable for ATEX zones 1, 2, 21 and 22). |
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| CE-Marking | |
| All Laitex equipment conform to Machinery Directive 2006/42/EC, and are therefore acceptable for CE-marking. | |
Laitex's cooling Screws
Characteristic Benefits
- Cooling and heating.
- Best cooling conveyor solution for short distances.
- Tailored solutions for extreme conditions.
- Material flow easily divided or combined.
- Conveying horizontally and vertically.
- Decades of service life.
Bulk materials
- Bottom Ash
- Fly Ash
- Sand
- Reburned lime
- Activated carbon
- Other materials as requested
Related references
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