A dry distillation device for solid heat carrier and its dry distillation method

Abstract

The invention discloses a destructive distillation device and a destructive distillation method of a solid heat carrier. A mixing chamber of the destructive distillation device is provided with a feed opening, triangular baffling and mixing plates are arranged in the mixing chamber in a stagger manner, multiple layers of angular boxes are arranged in a destructive distillation chamber, derivation holes are formed in the angular boxes and are communicated with a settling chamber through volatile matter channels, a discharge opening is formed in the lower part of a destructive distillation solid product chamber, an oil gas outlet is formed in the upper part away from a volatile matter channel interface of the settling chamber, and a dust outlet is formed in the bottom of the settling chamber. The destructive distillation method comprises: a destructive distillation raw material and the solid heat carrier enter the mixing chamber from the feed opening and drop into the destructive distillation chamber to form a material layer after being mixed by the triangular baffling and mixing plates, the destructive distillation raw material is heated in the destructive distillation chamber to pyrolyze to release a volatile matter, the volatile matter enters the angular boxes and enters the settling chamber through the derivation holes and the volatile matter channels, a destructive distillation solid product is discharged from the discharge opening, the volatile matter enters the settling chamber, and a gas and a solid are separated and are respectively discharged from the oil gas outlet and the dust outlet. The destructive distillation device and destructive distillation method of solid heat carrier disclosed by the invention have the advantages of low power consumption, little equipment wear, good gas-solid separation effect and high resource utilization rate.

Description

technical field [0001] The invention belongs to the technical field of energy and chemical engineering, and in particular relates to a solid heat carrier dry distillation device and a dry distillation method with low power consumption, small equipment wear, good gas-solid separation effect and high resource utilization rate. Background technique [0002] my country is rich in coal resources. Except for some of the raw coal used for coking and conversion processing, most of it is used for direct combustion, which not only has low thermal efficiency and serious damage to the environment, but also the hydrogen-rich components with high economic value in coal cannot be obtained. Reasonable use. Moreover, my country's oil shale and oil sand reserves are abundant, and the potential for resource development is huge. [0003] At present, most of the coal or oil shale low-temperature carbonization technology adopts block gas heat carrier carbonization technology. For example, the low...

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Problems solved by technology

In addition, whether it is fluidized bed, entrained bed dry distillation, or solid heat carrier moving bed dry distillation, they all belong to the "isothermal" dry distillation process, and the moisture and volatile matter escape instantly, which can easily cause thermal collapse, making the particle size of semi-coke products smaller. Fine, the amount of dust is larger, which increases the difficulty of gas-solid separation

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