Continuous carbonization furnace for waste wood chips

Abstract

The invention discloses a continuous carbonization furnace for waste wood chips. The continuous carbonization furnace comprises a sealed tower body, wherein a reaction gas outlet pipe, a nitrogen inlet pipe and a waste wood chip inlet pipe are arranged on an upper end cover of the tower body; large heating plates and small heating plates are respectively alternately fixed on a plurality of angle iron brackets which are arranged along the axial direction at intervals on the upper part of a barrel of the tower body; large cooling plates and small cooling plates are respectively alternately fixed on a plurality of angle iron brackets which are arranged along the axial direction at intervals on the lower part of the barrel of the tower body; runners of the plurality of heating plates are connected with a flue gas distribution system; scraping and stirring devices on the plurality of heating plates and the plurality of cooling plates are respectively driven to rotate by upper and lower transmission shafts; a powdered carbon outlet pipe is arranged on the side of a stirrer of a lower conical shell of the tower body; the upper and lower transmission shafts are respectively connected with motors; and a plurality of thermocouples are arranged on the barrel along the axial direction. The powdered carbon is continuously and quickly prepared by using the waste wood chips, and meanwhile, by-products such as wood gas, wood tar, wood vinegar and the like can be recycled. The continuous carbonization furnace has the characteristics of being short in production period, low in energy consumption, uniform in carbonization, large in operation elasticity, large in adaptability and the like, and continuous operation can be achieved.

Description

technical field [0001] The invention relates to a carbonization furnace, in particular to a waste sawdust continuous carbonization furnace. Background technique [0002] Charcoal is widely used in industry, agriculture, medicine, household and other fields. In industry, charcoal is an indispensable raw material for smelting steel, producing sulfur dioxide and activated carbon; in agriculture, charcoal powder can be used to increase ground temperature, improve soil, and act as a slow-release agent for pesticides or fertilizers; activated carbon prepared from charcoal is also used in the production of pharmaceutical preparations. Commonly used auxiliary materials; charcoal is mainly used for barbecue, heating, etc. in the civilian field. [0003] The production of charcoal uses wood, agricultural waste, etc. as raw materials. These woody materials are incompletely burned or heated for a certain period of time to form charcoal, and at the same time, by-products such as wood ga...

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Problems solved by technology

However, a large amount of combustion waste gas is mixed in the flue gas at the outlet of the device, and the patent does not provide a specific method for purifying wood gas from the flue gas at the outlet

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