Bamboo charcoal manufacturing process and its manufacturing equipment

Abstract

The invention provides a manufacturing process and manufacturing equipment of bamboo charcoal. The manufacturing process comprises the following steps: cutting into sections: cutting bamboo into sections; drying: feeding the cut bamboo into a drying machine, drying, conveying tail gas generated in the drying process to a postcombustion chamber, and feeding high-temperature flue gas to the drying machine by the postcombustion chamber for drying the bamboo which is fed newly; performing dry distillation: placing the bamboo which is dried by a rotary kiln and the drying machine into a multi-section furnace, performing dry distillation, feeding combustible gas into the multi-section furnace to provide combustion-supporting gas for dry distillation, and feeding tail gas generated in the dry distillation process into a combustor or the postcombustion chamber to generate high-temperature flue gas; cooling: quickly feeding the bamboo subjected to dry distillation into an aqueous medium quenching tank and cooling; redrying: feeding the bamboo which is cooled by the aqueous medium quenching tank into the drying machine and drying to prepare the bamboo charcoal. The manufacturing process and the manufacturing equipment of the bamboo charcoal can continuously manufacture bamboo charcoal products, save energy and are favorable for environmental protection.

Description

technical field [0001] The invention relates to a bamboo charcoal manufacturing process and its manufacturing equipment, in particular to a manufacturing process and its manufacturing equipment for continuously manufacturing high-grade bamboo charcoal products. Background technique [0002] Bamboo charcoal is a charcoal product made of moso bamboo as a raw material and dry-distilled in isolation from air at a temperature above 400°C. The quality and use of bamboo charcoal vary greatly with the firing temperature. Generally speaking, the higher the final firing temperature of the dry distillation process, the greater the density, mechanical hardness, porosity and surface area of ​​the bamboo charcoal product. When the temperature is higher than 1050°C, bamboo can be used to make high-grade bamboo charcoal with far-infrared, negative ions and conductive functions, commonly known as "white charcoal", and in Japan it is commonly known as "binchotan" (currently "binchotan" has al...

AI Technical Summary

Problems solved by technology

[0004] The use of earth kiln devices to produce bamboo charcoal has a long history, but this production technology method has inherent defects that cannot be eliminated through partial improvement:

[0005] (1) The production process is seriously polluted, and the flammable gas phase products cannot be effectively utilized

During the carbonization and refining process, especially the carbonization process, a large amount of dusty flue gas will be released. Although bamboo acetic acid and wood tar in the flue gas can be mostly removed by condensation, non-condensable gas phase pollutants (including small molecules Combustible components such as hydrocarbons, carbon monoxide, methane and hydrogen) cannot be effectively eliminated and cannot be effectively recycled (because the release rate of these gas products is extremely unstable and cannot be effectively stored and transported)

[0006] (2) Production efficiency is extremely low

The clay kiln process can only produce bamboo charcoal products intermittently and batch by batch. It takes 15 to 30 days to complete a furnace of bamboo charcoal firing, and the largest clay kiln can only produce about 30 tons of bamboo charcoal each time. , the average production efficiency is only 1-2 tons / day

[0007] (3) Unstable product quality

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