dryer or pyrolyzer

Abstract

The present invention discloses a drier or pyrolyzer, which comprises a shell (1), a rotating material bed (2) and a truss support (3). On the basis of the truss support, the Cylindrical support (4) is added, the top of the cylindrical support is supported on the central area of ​​the bottom surface of the rotating material bed, the truss support is connected and supported on the outer ring area surrounding the central area on the bottom surface of the rotating material bed, the bottom end of the truss support is connected to the The bottom ends of the cylindrical supports are spaced along the radial direction of the rotary material bed, and are respectively rotatably supported on the bottom platform structure (5) to jointly support the rotation of the rotary material bed along its rotation axis (OO'). Wherein, the bottom end of the truss support is located between the feeding pipe (13) and the feeding hole (21) in the radial direction of the rotating material bed. The bottom of the rotating material bed has two rotatable support points at intervals, which greatly increases the rotation stability, improves the load-bearing weight of the material, and makes the rotating material bed less prone to buckling and collapse. In addition, the fluidity of the material in the gap between the guide plate and the rotating material bed can be effectively enhanced.

Description

technical field [0001] The invention relates to a drier or a pyrolyzer, in particular to a drier or a pyrolyzer with a large material handling capacity. Background technique [0002] Lignite storage in my country is very rich, accounting for about 40% of my country's coal storage, mainly distributed in Yunnan, Inner Mongolia, Northeast China, Sichuan and other provinces. Lignite is characterized by high water content, generally accounting for 20-60% of the proportion; low calorific value, about 2500-4500 kcal / kg; high volatile content, about 40-50% (dry ash-free basis). This type of coal has low market value, high transportation costs, low power generation efficiency and difficult gasification technology. The market value of this kind of coal is far lower than that of high-quality coal. Using the gas heat carrier process to pyrolyze lignite can extract pyrolysis oil from it and process it into high-quality oil products, extract hydrogen-rich gas for oil quality improvement,...

AI Technical Summary

Problems solved by technology

However, because the design diameter of the feeding pipe and its support and driving bearing is too small compared to the rotating material bed, this device is only suitable for occasions where the diameter of the rotating material bed is small and the material handling capacity is not much, in other words, for the rotating material bed The structure and load bearing have strict restrictions

If the mass of the rotating material bed is too large, it will cause buckling and collapse of the entire supporting structure (bearings and feeding tubes), thus severely limiting the scale-up of the device and the operating capacity of the device

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