Environmental-friendly machine-made charcoal and production method thereof

Abstract

The invention discloses environmental-friendly machine-made charcoal and a production method thereof. The production method comprises the following steps: drying a raw material, and separating the dried raw material from hot air; making rods; performing carbonization, namely carbonizing the machine-made charcoal rod cores in a carbonization furnace so as to obtain machine-made charcoal; in carbonization, feeding combustion smoke discharged from the carbonization furnace into a carbonization furnace smoke discharge recycling pipeline, feeding the combustion smoke discharged from the carbonization furnace into a heat source stove under the action of a draft fan and the pressure inside the carbonization furnace, fusing the combustion smoke with existing heat of the heat source stove, feedinginto a double-tube type drying tank, dyeing the raw material, and repeating the operation in circulation. By adopting the production method, no-smoke production is achieved in the whole production process, no fume is discharged into the environment, the air is not polluted, and the environment can be protected; the environmental-friendly machine-made charcoal is relatively high in heat value, relatively small in ash amount, easy to combust, free of harmful gases such as sulfur oxide, potassium sulfide, nitric oxide and carbonic oxide when being combusted, free of flying dust or bursting phenomenon and free of influence on human body health.

Description

technical field [0001] The invention relates to a charcoal production process, in particular to machine-made charcoal, in particular to an environment-friendly machine-made charcoal and a production method thereof. Background technique [0002] The production method of mechanism charcoal is to use wood chips (sawdust, wood chaff) as raw materials, dry them into standard raw materials with appropriate dry humidity through a drying furnace, enter the molding machine (rod making machine) after cooling, and then plasticize them under high temperature and high pressure. Made into salary rods (semi-finished products), and finally carbonized in a carbonization furnace. [0003] The machine-made charcoal produced by the prior art, the heat source stove and carbonization furnace used for drying discharge a large amount of dense smoke during the production process, which seriously pollutes the environment. [0004] In addition, the machine-made charcoal produced by this prior art can...

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Problems solved by technology

[0003] The mechanism charcoal produced by the existing technology, the heat source stove for drying and the carbonization furnace emit a large amount of dense smoke during the production process, which seriously pollutes the environment

[0004] In addition, the machine-made charcoal produced by this prior art cannot form a qualified rod core in the rod making machine due to the high water content of the raw material. Many manufacturers add glue or mud or coal to the material to make the rod core. The center of the rod core has low density, or contains scattered sawdust, and surface cracks are prone to appear after carbonization; this kind of mechanism charcoal has low calorific value, large ash content, and contains sulfur, potassium, nitrogen and other elements. When burning, there are potassium sulfide, sulfur oxide, Harmful gases such as nitrogen oxides and carbon monoxide affect human health

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