Steam Tube DryerSteam Tube Dryer
The heat source of the dryer comes from the combustion device, and the dryer uses a downstream heating method. Therefore, the material to be dried is slipped from the feed box and the feed into the cylinder, that is, pushed back by the spiral plate. As the dryer is placed obliquely, the material flows to the rear end under the action of gravity and rotation. On the other hand, the material is repeatedly picked up by the copying board, and is taken to the upper end and then continuously sown down, so that the material forms a uniform curtain in the cylinder. The curtain is fully exchanged with the hot air flow in the cylinder. As the material is repeatedly spread, the moisture contained is gradually dried, thereby achieving the purpose of drying.
The first group of the ZGG5×8-type steam tube dryers developed by ourselves with an invention patent, is launched to run by Datang International Duolun Coal and Liquefaction Project. With the performance index meets the design requirements, it fills the vacancies of our country relating to the indirect dry equipment. It is able to totally substitute import products, endowed with full market competitiveness and an extensive prospect.
The ZGG-type steam tube dryer is an enclosed and indirect heat exchanger. The integrity comprises four parts: The drive, the feeding, the drying and the discharging parts. The drive part includes: The drive motor, the speed reducer, the coupling, the gear and the bearing. The feeding part includes: The feeding device and the auxiliary feeding device. The drying part includes: The rotary cylinder and the steam pipeline. The discharging part includes: The discharging hopper and the discharging seal.
1. Large heat transfer coefficient, high thermal efficiency, large processing capacity and wide adaptability.
2. The drying temperature is uniform, the drying effect is good, indirect heating, no pollutants.
3. The cylinder speed is flexible, the running power is low, and it can be operated continuously.
4. The equipment has good airtightness and is suitable for operation in an explosion-proof environment.
●Product Model and Performance Parameter
Power 55kW; Duty 24-60t/h
Power 37kW; Duty 14-32t/h
With the overheated steam as the dry media and the the indirect dry method applied, the whole dry process is full of efficiency, safety and reliability. The product is a domestic pioneer with a patent (the patent name is the Dryer with the code of ZL2007 1 0117957.4).
It is applicable for drying and extracting the granular materials used in such fields as the power generation with the brown coal and coal chemical industry.