Gas circulating crop straw cracker

Abstract

The invention discloses a gas circulating crop straw cracker and belongs to the field of agricultural machinery. The cracker comprises four main functional systems such as a straw collection system, a cab, a gas separation and circulation system and a biochar cracking and broadcast system. The cab is used for driving of a driver and control of machine travel and braking. The straw collection system is used to collect and transport the straws on the ground surface into a pyrolysis chamber and a combustion chamber. The gas separation and circulation system is used to separate and cycle gas generated in the pyrolysis chamber and the combustion chamber. The biochar cracking and broadcast system is used to crack straws and return cracked or burned biochar to the farmland. After treatment based on the gas separation and circulation system, the combustible gas and CO2 are separated, the combustible gas is introduced into the combustion chamber for combustion and the CO2 is separated and enters the pyrolysis chamber so that the pyrolysis oxygen-deficient environment is formed.

Description

technical field [0001] The invention belongs to the field of agricultural machinery, and in particular relates to a gas circulation type crop straw cracking machine. Background technique [0002] In recent years, the frequent occurrence of air pollution, especially smog, has attracted widespread attention. Studies have shown that human activities such as industrial and agricultural activities are the primary reason for the significant decline in air quality in my country, and the large-scale burning of a large number of crop residues during the agricultural harvest season in eastern my country is also one of the important reasons for large-scale heavy pollution events in my country. . my country is rich in biomass waste, and the total amount of various crop straws produced each year is about 700 million tons, of which rice, wheat, corn and other bulk crop straws are about 500 million tons. With the introduction of modern energy, the use of biomass as fuel in modern rural ar...

AI Technical Summary

Problems solved by technology

These biochar preparation and returning devices can promote the anoxic pyrolysis of biomass and the production of biochar to a certain extent, but they cannot guarantee the anoxic environment for pyrolysis, and the yield of biochar is low, which will limit the practical application.

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