Straw gasification comprehensive treatment method

Abstract

The invention discloses a straw gasification comprehensive treatment method which is characterized by comprising the following steps: processing straw into biological charcoal, purifying a mixed combustible gas generated when charcoal is prepared, and providing the purified mixed combustible gas as fuel to a metal smelting step in a casting process. The straw gasification comprehensive treatment method has the beneficial effects that the process is simple and convenient, the operation is convenient, the agriculture straw is prevented from being wasted, not only is charcoal manufactured, but also the mixed combustible gas can be obtained in the process that the charcoal is manufactured, multiple times of continuous washing with water, cooling, dust collection and tar removal ensure that the mixed combustible gas can be at the normal temperature, the tar in the gas can be removed, the combustible gas is maintained, pipelines are prevented from being blocked by tar, the environment pollution caused by charcoal manufacturing and pollution caused by coal firing and smoke discharge in the casting field are reduced, and the process cost for heating and melting metal in the casting field is reduced.

Description

technical field [0001] The invention belongs to the field of charcoal coproduction and relates to a comprehensive treatment method for straw gasification. Background technique [0002] At present, a large amount of wood is wasted in the production of charcoal, and there is nowhere to place a large amount of straw left after harvesting crops in rural areas, so it needs to be properly resolved. At present, in the existing charcoal processing field, the gas generated during charcoal processing is generally discharged into the air. The carbon monoxide, sulfur monoxide and other toxic gases contained in it are not only unable to be effectively used, but also pollute the air and are harmful to human health. . The aluminum melting and foundry industry needs to use a large amount of coal, which is costly and smog polluting, so it needs to be improved. Contents of the invention [0003] In order to make up for the deficiencies of the prior art, the present invention provides a st...

AI Technical Summary

Problems solved by technology

[0002] At present, a large amount of wood is wasted in the production of charcoal, and a large amount of straw left after harvesting crops in rural areas has no place to be placed, so it needs to be properly resolved

At present, in the existing charcoal processing field, the gas generated during charcoal processing is generally discharged into the air. The carbon monoxide, sulfur monoxide and other toxic gases contained in it are not only unable to be effectively used, but also pollute the air and are harmful to human health.

The aluminum melting and foundry industry needs to use a lot of coal, which is costly and smog polluting, so it needs to be improved