Pretreatment method of new energy biomass material

Abstract

The invention discloses a pretreatment method of a new energy biomass material in the technical field of biomass material pretreatment. The process or method comprises the following specific steps of: step 1, firstly carrying out drying and magnetic separation on a biomass raw material, and removing scrap iron in the raw material; and step 2, then crushing the treated biomass raw materials. According to the pretreatment method, the extrusion force of an extrusion plate on biomass is controlled by controlling the current of an electromagnetic coil, so that the compaction degree of the extruded biomass raw material block can be controlled, the compaction degree of the biomass raw material block formed by extrusion each time is ensured to be the same, and the situation that the extruded biomass raw material block is loosened due to different compaction degrees of all parts is avoided; on one hand, transportation is convenient, and on the other hand, the biomass raw material block can improve the heat utilization rate during combustion; the compaction degree of the biomass raw material block can be controlled; and an extrusion device can adapt to extrusion forming of different biomass.

Description

Technical field [0001] The present invention relates to the art of biomass pretreatment technologies material, particularly as a material of new energy biomass pretreatment methods. Background technique [0002] Biomass material is a part of biomass resources, such as crop straw is an agricultural ecosystem biomass as a valuable resource; a wide range of biomass in nature, widely distributed, and a huge number, can be divided into trees harvesting and processing residues, straw and agricultural residues, municipal waste, etc., they can all use of biological resources; biomass is generally used as livestock feed, domestic heating and domestic energy, thermal power generation and other fuel use. [0003] Life is usually used as thermal or biomass fuel, in the prior art pretreatment of biomass, the biomass needs to be pressed into blocks, during the extrusion, since each portion of the biomass suffered pressing different pressures, so that the degree of compaction of the various par...

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Problems solved by technology

[0003] Biomass is usually used for thermal power generation or fuel in daily life. The existing technology needs to extrude the biomass into blocks in the pretreatment of the biomass. During the extrusion process, because each part of the biomass is affected The extrusion force is different, so the compactness of each part of the extruded block is different, resulting in easy loosening. On the one hand, it increases the difficulty of transportation. On the other hand, when burning, the loose biomass combustion heat utilization rate Low, and the extrusion force required for extrusion of different biomass is also different

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