Biomass and mineral substance mixed type coal and manufacturing method thereof

Abstract

The invention discloses a mixed type coal of biomass and mineral. The mixed type coal comprises the following compositions: 55 to 65 percent of biomass as a raw material, 3 to 7 percent of coke powder and 32 to 38 percent of coal slurry. The manufacturing method comprises the following steps: 1. straws of rice, wheat, soybean, corn and sorghum are crushed into sections; the branches of wood and bush are subjected to chipping and powder making; the relative humidity of the raw material is controlled to between 10 and 15 percent; 2. industrial coke slag is grinded to powders by a ball mill; 3. the coal slurry of industrial washery coal is dried; 4. the biomass material, the coke powder and the coal slurry are fully mixed according to the percentage; and 5. the mixed materials are extruded to be of a strip block shape to prepare a finished product. The mixed type coal has the characteristics that on the one hand, the coal can fully utilize the biomass material and industrial mineral waste and save energy; on the other hand, the coal can reduce the environmental pollution caused by the incineration of the biomass material or pure mineral fuel. The mixed type coal is in particular suitable for civil use; and the heat energy of the coal is basically equivalent to that of civil coal.

Description

technical field [0001] The invention relates to a solid fuel and a production method thereof, in particular to a biomass-mineral mixed briquette and a production method thereof. Background technique [0002] With the decrease of non-renewable energy sources such as mineral fuels such as coal and oil, the energy crisis has initially appeared. However, biomass raw materials, known as the third largest energy source, are not fully utilized. They are either crushed and returned to the field, or burned on the spot, which not only wastes resources, but also seriously pollutes the environment. Therefore, the utilization of biomass energy is imminent. Contents of the invention [0003] The object of the present invention is to provide a kind of biomass-mineral mixed briquette which is mainly based on biomass raw materials and supplemented by a small amount of mineral raw materials. [0004] Another object of the present invention is to propose a method for making biomass and mine...

AI Technical Summary

Problems solved by technology

However, the biomass raw material, which is known as the third largest energy source, is not fully utilized. It is either crushed and returned to the field, or burned on the spot, which not only wastes resources, but also seriously pollutes the environment. Therefore, the utilization of biomass energy is imminent.