Biomass granulation system and device

Abstract

The invention discloses a biomass granulation device. Biomass is delivered to a crusher to be crushed, the crushed biomass is pumped out through a blower and fed into a cyclone dust collector to perform gas-solid separation, and the separated material is made into granules through a biomass granulator; pulverized coal or diatomite can be added into the biomass delivered to the crusher; a temperature sensor is arranged in a molding cavity, the biomass granulator is driven by a variable frequency motor, and the rotating speed of the variable frequency motor is automatically adjusted through a monitored temperature signal; and a straight hole or a conical-straight composite through hole is formed on a flat die of the granulator. The biomass and the additive can be mixed while crushing, so the mixing uniformity of different materials is improved; the provided temperature sensor adjusts the rotating speed of the variable frequency motor and stabilizes the water content of the biomass molding granules; and the straight hole or the conical-straight composite through hole is formed on the flat die of the granulator, the molding time of the biomass granulesis prolonged, the molding intensity is increased, and the slag dropping defect of the current granulator is overcome.

Description

Technical field: [0001] The invention relates to a biomass forming equipment, in particular to a biomass granulation equipment using biomass such as plant stalks, sawdust, shrubs and weeds as main raw materials. Background technique: [0002] my country's biomass energy resources are very rich, especially as a by-product of agricultural production, crop straw has a large output and wide distribution. According to statistics, my country's annual production of biomass straw is about 800 million tons, which is equivalent to 100% of the amount of grass mowed in northern grasslands. More than 50 times, the resource possession ranks first in the world. On the one hand, the sown area of ​​crops in my country is 1.8 billion mu, and the annual production of materials is about 700 million tons. Except that part is used for papermaking and livestock feed, the rest can be used as fuel. On the other hand, my country's existing forest area is about 175 million hectares, with a forest cov...

AI Technical Summary

Problems solved by technology

[0003] Although biomass fuel resources are abundant, their distribution is very scattered, and resource types and characteristics (such as shape, size, combustion characteristics, physical and chemical characteristics of ash content) vary greatly in different regions, resulting in the distribution of biomass energy resources. Collection, transportation, processing, and storage face certain difficulties; there are huge differences in the chemical composition of biomass such as moisture content, calorific value, and ash content, which brings difficulties to the thermal energy utilization of biomass

[0004] In order to overcome the difficulties in the collection, transportation, processing and storage of biomass straw, some departments have developed various biomass straw molding machines, but many related machines have some problems, such as, only for the compression molding of a single species of biomass, The energy grade of biomass fuel cannot be improved; the humidity of the formed particles cannot be controlled, resulting in unstable operation of subsequent heat energy utilization equipment; the forming machine has the disadvantage of slag dropping and low efficiency, etc.

These problems limit the rapid development of biomass fuel

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