Dry distillation device with lower furnace body capable of moving up and down and dry distillation method of dry distillation device

Abstract

The invention discloses a dry distillation device with a lower furnace body capable of moving up and down. The dry distillation device comprises an insert gas cooling tank and a high temperature dry distillation furnace body, wherein the insert gas cooling tank comprises a tank door, an insert gas inlet and an insert gas outlet; and the high temperature dry distillation furnace body comprises an upper furnace body, a thermal insulation device and the lower furnace body. The invention discloses a dry distillation method. The dry distillation method comprises the steps of putting materials, and arranging a plurality of thermocouples used for measuring material temperature; exchanging air in the entire tank with an insert gas; closing the thermal insulation device, and starting a thermal insulation temperature keeping furnace chamber temperature increasing program; when a preset temperature is reached, connecting the lower furnace body with the upper furnace body together with a material bin, and starting dry distillation; after dry distillation, setting an insert gas atmosphere in the insert gas cooling tank, downwards moving the lower surface body together with the material bin, and then, closing the thermal insulation device; and when the material temperature drops to a required value, taking out the materials for analysis. Through the adoption of the dry distillation device and the dry distillation method, the dry distillation condition of an industrial device can be simulated, and the influence of temperature and time on the dry distillation effect can be inspected.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a dry distillation device and a dry distillation method with a lower furnace body capable of moving up and down. Background technique [0002] Dry distillation technology is the process of heating and decomposing materials under air-isolated conditions to produce coke (or semi-coke), tar, dry distillation gas and other products. It has been widely used in conventional resource utilization and development, waste treatment and bio-energy development. Among them, carbonization conditions (carbonization temperature, carbonization time, heating method, material layer thickness, etc.) have a great influence on carbonization products and carbonization process, and a large number of basic experiments are needed to investigate and verify, so as to provide sufficient data support for the industrialization of coal carbonization technology . [0003] However, most of t...

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Problems solved by technology

The heating method of the tubular retort furnace is surrounding heating, and the amount of materials that can be inspected is small, which is quite different from the current industrial equipment, and the influence of the heating method and the thickness of the material layer cannot be investigated; while the box-type retort furnace is mostly operated intermittently , that is, the material is put into the closed carbonization device in a cold state and the temperature rises with the furnace. After the reaction is completed, because the coal is easy to burn when exposed to oxygen at high temperature, it can only be placed in the closed carbonization furnace and discharged after the furnace cools down.

Because coal can undergo carbonization during the process of heating and cooling, it is impossible to investigate the influence of temperature and time on the results of carbonization

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