Black liquid charcoal and manufacturing method thereof

Abstract

The invention provides black liquid charcoal. The raw materials of the charcoal comprise at least fuel wood, shrubs, branches, barks, wood processing residues or deserted artificial boards and the like, two components of the raw materials and alkali lignin are mixed, and then cooling compression molding is conducted through a pressing machine, and carbonization is conducted so that the black liquid charcoal is made. The fuel wood, the shrubs, the branches, the barks, the wood processing residues or the deserted artificial boards and the like are hard to be utilized by machine-made charcoal manufacturing and are usually burned off or rotted, utilization degree is low, the alkali lignin is also a problem in black liquid recycling management, the alkali lignin is produced by soda pulping or sulfate pulping through acidification, the alkali lignin has the characteristics of high-viscosity and high-calorific value, the two components of the raw materials and the alkali lignin are mixed and then the cooling compression molding is conducted through the pressing machine, and carbonization is conducted so that the black liquid charcoal is made. The produced carbon is high in caloric value, not prone to crushing, high in application range and utilization rate, in addition a large number of alkali lignin resources produced in the process of pulping and papermaking can be utilized sufficiently, and therefore the pressure of environmental management is relieved.

Description

【Technical field】 [0001] The invention relates to the technical field of charcoal production. 【Background technique】 [0002] The firing of charcoal in the prior art is mainly the firing method of machine-made charcoal, and the traditional earth kiln firing wood or fuelwood has been basically replaced by machine-made charcoal due to resource problems and national policies. [0003] Mechanism charcoal firing method generally uses wood sawdust as the main raw material, branches, rice husks, bamboo chips, peanut skins, sunflower seed husks, furfural residues, wine residues, bagasse, corn cobs, coconut shells, coffee shells and north-south charcoal Square crop straws can also be used after being crushed, but the machine-made rod and screw extruder has strict requirements on the moisture content and fineness of the raw materials, and often needs to be repeatedly crushed several times. Energy consumption and labor increase the manufacturing cost, which is very difficult in actual ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problems of environmental pollution and a large amount of waste of lignin resources in pulping and papermaking in the above prior art, the shortage of raw materials in charcoal production, and overcome the pulverization energy consumption and labor cost of the machine-made charcoal firing method high, dry material loss and insufficient environmental pollution; a black liquor charcoal is provided, which makes full use of the by-product lignin resources of pulping and papermaking, changes the manufacturing process in the existing charcoal production technology, and has a high fixed carbon content in the product. regular shape and higher calorific value; another object of the present invention is to provide a manufacturing method of the black liquor charcoal, which can realize large-scale production