Rotary carbonizing furnace

Abstract

The invention provides a rotary carbonizing furnace. The rotary carbonizing furnace comprises a rotary furnace barrel and a feeder, wherein one end, provided with the feeder, of the rotary furnace barrel is a feeding end, and the other end of the rotary furnace barrel is a discharging end; the rotary carbonizing furnace further comprises a combustion chamber, a feeding end gas chamber and a discharging end gas chamber; the feeding end gas chamber is arranged at the discharging end and is communicated with an inner cavity of the rotary furnace barrel; the feeding end gas chamber is arranged at the feeding end and is separated by a feeding end gas chamber separation plate to form a feeding end fuel gas chamber and a feeding end smoke gas chamber; a gap is reserved between the feeding end smoke gas chamber and the rotary furnace barrel. The rotary carbonizing furnace does not need complicated dynamic sealing and can be used for efficiently converting biomass wastes into high-grade carbonized materials; meanwhile, physical connection between the fuel gas chamber and the rotary furnace barrel is avoided, so that the common problems in a carbonizing process that wood coal gas leaks to trigger gas explosion, wood tar and wood vinegar are condensed to block a pipeline, and dust is discharged to pollute the atmosphere and the like are solved.

Description

technical field [0001] The invention relates to the field of energy equipment, in particular to a rotary carbonization furnace for pyrolyzing and carbonizing biomass raw materials to generate gas and carbonized materials. Background technique [0002] In traditional wood and bamboo processing enterprises, biomass waste such as sawdust and shavings is far from being fully recycled and reused, and most of them are directly burned as boiler fuel. Due to technical limitations and material characteristics, the efficiency of direct combustion is low, the combustion is incomplete, and air pollutants such as nitrogen oxides, carbon monoxide, and dust are easily produced. [0003] In order to convert low-grade biomass energy into high-grade energy, biomass must be treated. The common way is to carbonize it. The main methods are: carbonization kiln intermittent carbonization method, closed boring tank carbonization method, dry distillation method, but Its carbonization time is long, ...

AI Technical Summary

Problems solved by technology

However, its structural design is not reasonable enough, and there must be a movement gap between the rotating carbonization furnace and the fixed star-shaped feeder, so the wood gas generated during the carbonization process cannot be completely isolated from the air, and the air is easily mixed into the wood gas to cause a gas explosion. , or wood gas escapes to the outside of the equipment and pollutes the environment, becoming a safety hazard

At the same time, the drying section in the rotary kiln reduces the extraction temperature of wood gas, and wood tar and asphalt are easy to condense and form, blocking the pipeline or even leaking, causing pollution

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