Waste material utilizing device used in primary screening of biomass pellet fuel

Abstract

The waste material utilization device in the primary screening of biomass pellet fuel includes a connected vibrating screen, a feed inlet is provided at the upper end of the vibrating screen, and a conveying device is provided below the vibrating screen, and it is characterized in that it also includes a combustion chamber and a dust removal chamber, The combustion chamber communicates with the dedusting chamber through a hot gas pipe. A feeding pipe connecting the indoor and outdoor is provided on the combustion chamber. A feeding hopper and a shut-off fan are installed at the end of the feeding pipe located outside. The feeding hopper passes through the conveying device. Placed under the vibrating screen, the air intake pipe and air intake pump communicate with the lower end of the combustion chamber, and the air outlet pipe and air outlet pump communicate with the end of the dust removal chamber away from the combustion chamber.

Description

technical field [0001] The invention relates to a waste material utilization device in the primary screening of biomass particle fuel. Background technique [0002] Biomass pellet fuel, also known as biomass briquette fuel, is a kind of combustible fuel that uses waste wood, straw, sawdust and bark as raw materials and undergoes processes such as material selection, crushing, mixing, drying and extrusion. Granular clean fuel, and China is a big rice country, often chooses straw as the raw material for the production of biomass fuel particles. In the production process, the straw needs to be chopped first, and then poured into the pulverizer for crushing. The material contains a lot of chaff or other small impurities, and its hardness is different from that of straw. In the process of pressing in the future, it is not easy to form, and the hard particle impurities will break down the subsequent cyclone separator, so It is necessary to screen and separate the hard particle im...

AI Technical Summary

Problems solved by technology

[0002] Biomass pellet fuel, also known as biomass briquette fuel, is a kind of combustible fuel that uses waste wood, straw, sawdust and bark as raw materials and undergoes processes such as material selection, crushing, mixing, drying and extrusion. Granular clean fuel, and China is a big rice country, often chooses straw as the raw material for the production of biomass fuel particles. In the production process, the straw needs to be chopped first, and then poured into the pulverizer for crushing. The material contains a lot of chaff or other small impurities, and its hardness is different from that of straw. In the process of pressing in the future, it is not easy to form, and the hard particle impurities will break down the subsequent cyclone separator, so It is necessary to screen and separate the hard particle impurities or chaff in the early stage. The separated chaff or impurities are generally used as biological fertilizers, feed or put into the furnace for combustion. In this case, they need to be collected separately, which increases the production cost, and After the rice straw is crushed and mixed, it needs to be dried. The source of hot air for drying is generally the hot air generated by burning coal, wood or natural gas, which is transmitted to the dryer to dry the biomass raw material powder, and sometimes it will be screened out. The chaff or impurities are put into the furnace for burning together. This way of putting in is not very convenient, and the dust generated by the powder will enter the dryer along with it, affecting the quality of the finished material.

Images