Equipment for producing biochar from rice straw and technology for producing biochar

Abstract

The invention discloses equipment for producing biochar from rice straw. The equipment comprises a feeding box, a pulverizator, a reaction vessel, a discharge delivery pipe, a pyrolysis box, a heating stove, a first cooler and a second cooler. Meanwhile, the invention discloses a technology for producing the biochar. The method comprises steps as follows: firstly, the rice straw enters the feeding box through a feed inlet and then enters the pulverizator for pulverization; the pulverized rice straw enters the reaction vessel through a discharge valve and is processed, the processed rice straw is cooled by the first cooler, is sent to the pyrolysis box through the discharge delivery pipe for high-temperature pyrolysis and then is conveyed to the heating stove for carbonization, and the carbonized rice straw is discharged from a discharge port after cooled by the second cooler. The production technology is simple, the energy consumption of the equipment is low, and the cost is lower than that of other methods by 8% or more; the production cycle is short, the controllability of a production process is high, and apparent specific gravity of the obtained biochar is high.

Description

technical field [0001] The invention belongs to the technical field of biochar production equipment and technology, and relates to rice straw biochar production equipment and a process for producing biochar. Background technique [0002] With the increase of crop production year by year, the development of rural urbanization and the further improvement of farmers' living standards, the output of crop straw has increased significantly. At the same time, the proportion of straw used as firewood has gradually declined, and a large amount of surplus straw has been abandoned on the fields and roadsides. Or ditches, or burning at the head of the field, has brought great hidden dangers to the ecological environment and the safety of life and property. my country is a major rice producing country, and a large amount of rice straw is produced every year. Rice straw is a by-product obtained after rice threshing and seed harvesting. The threshing stem and attached dry leaves become str...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention: the current rice straw biochar production equipment and the process for producing biochar have high energy consumption, long production cycle and poor controllability of the production process, resulting in high production cost of biochar and the apparent appearance of biochar obtained Disadvantages of small specific gravity, providing rice straw biochar production equipment and a process for producing biochar, the equipment and process have low energy consumption, short production cycle, strong controllability of the production process, and the obtained biochar has a large apparent specific gravity

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