System for preparing biomass pellet fuel by taking straws and black liquor of paper mills as raw materials

Abstract

The invention relates to a system for preparing a biomass pellet fuel by taking straws and black liquor of paper mills as raw materials. The system comprises a flat plate type solar thermal collector, a straw and black liquor mixing dryer, a pulverizer, a greenhouse-heat-collecting type solar energy drying chamber and a biomass forming machine. Solar energy is adopted as the source of drying energy to play the roles of cleaning, drying and energy saving; the straws and the black liquor of the paper mills are adopted as the source of biomass forming raw materials to increase the characteristic of the biomass pellet fuel; moreover, the toughness of the straws is reduced after the straws are mixed with the black liquor and preliminarily dried and the biomass raw materials are pulverized on the basis, so that the biomass raw material pulverizing energy can be reduced and the energy loss is reduced. The system disclosed by the invention has the advantages of solving the problem of pulverizing the biomass straw raw materials, increasing the forming characteristic of the biomass forming pellet fuel and reducing the drying time and energy of the biomass raw materials.

Description

technical field [0001] The invention relates to the technical field of biomass pellet fuel molding, in particular to a system for efficiently preparing biomass pellet fuel by using straw and paper mill black liquor as raw materials. Background technique [0002] At present, human beings are in an energy society, which makes human beings use energy resources to meet their own needs and develop social processes, but also bear the dual pressures on the environment and energy brought about by energy consumption and utilization: on the one hand, the use of mineral energy increasingly exhausted. According to current consumption calculations, global oil resources will be exhausted in the next 40 to 70 years, and the current international oil market price is about 6 times that of more than 20 years ago, which means that the reserves of fossil energy will be reduced. less and less, the market price will gradually increase, indirectly affecting the development of the economy and soci...

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Problems solved by technology

[0006] In view of this, the main purpose of the present invention is to provide a system that can efficiently prepare biomass pellet fuel by using straw and paper mill black liquor as raw materials, so as to realize efficient preparation of biomass pellet fuel from biomass straw raw materials, and solve the current The drying problem of material raw material preparation, the problem of single composition of biomass raw material and the problem of difficult treatment of black liquor in paper mills, improve the effective utilization rate of biomass

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