Device integrating rice and wheat harvesting and straw carbonization and returning to field

Abstract

The invention discloses a device integrating rice and wheat harvest and straw carbonization and returning to fields. The device integrating rice and wheat harvest and straw carbonization and returning to the field comprises a rice and wheat harvest threshing and straw cutting device and a straw carbonization and flue gas cleaning device. The rice and wheat harvest threshing and straw cutting device is composed of a cutting table, a feeding pipe and a grain bin, and the straw carbonization and flue gas cleaning device is composed of a rotating drying furnace, a gas cleaning chamber, a gas conveying pipe, a chimney, a feeding pipe, a draught fan and a carbonization chamber. The device integrating rice and wheat harvest and straw carbonization and returning to the field is high in carbonizing efficiency, can finish rice and wheat harvest and straw carbonization and returning to field simultaneously, and reduces transportation cost.

Description

technical field [0001] The invention belongs to the technical field of new energy applications, and relates to an integrated device for rice and wheat harvesting and straw carbonization and returning to the field. Background technique [0002] The preparation of biochar from agricultural and forestry wastes is one of the research hotspots in the clean conversion and utilization of biomass energy, and has broad development space. [0003] At present, the total annual output of various crop straws in my country can reach 700 million tons, but its utilization rate is extremely low. About 100 million tons of straws are burned directly in the field, causing serious air pollution and waste of resources. On the other hand, the rice field ecosystem is the main source of greenhouse gas emissions, so the research on its emission control has been a hot spot in this field at home and abroad. Although a series of studies in recent years have focused on reducing greenhouse gas emissions ...

AI Technical Summary

Problems solved by technology

[0005] At present, the biomass carbonization technology is mature, and the existing technology can provide rapid pyrolysis of biomass charcoal of different qualities, but the carbonization devices are all fixed facilities, and the transportation costs caused by the collection of raw materials to the return of products to the field greatly increase the cost of carbon production, and then This has resulted in the fact that straw carbonization and returning to the field cannot be widely popularized at present.

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