Indirect Rotary Rotary Drum Drum Coolers Coolers Indirect Cooling hot hot bulk bulk materials materials Cooling

Cooling hot bulk materials with indirect rotary drum coolers The application Many bulk materials such as powdery or granulated products have to be cooled before further processing, either due to the limited: • temperature resistance of the downstream equipment or the • silos and packaging containers or for • heat recovery from the hot product. The hot products can be cooled convectively by contact with air (or other process gases, e.g. nitrogen). In this process, the cooling air flows around or through the products in direct contact. The fine solid constituents that are carried along in the cooling...

Rotary drum cooler type KTR for the medium temperature range In the rotary drum cooler type KTR, the cooling air is channeled through a large number of small-diameter tubes and the hot, powdery solid material is cooled as it trickles in between the tubes while the drum rotates. At the same time, the hot material moves from the drum's infeed towards the outfeed due to the inclination of the drum. The large number of cooling tubes creates a very large heat exchanger surface area, which is why the KTR rotary drum cooler can also be used very effectively for cooling hot products in the 250- or 300...

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