Steam explosion pulping equipment

Abstract

The invention relates to the field of mechanical equipment, and in particular relates to steam explosion pulping equipment. The equipment comprises a vacuum pump, a negative-pressure emptying tank andan explosion tank; and one end of the negative-pressure emptying tank is connected with the vacuum pump, a material outlet of the negative-pressure emptying tank is connected with a material inlet ofthe explosion tank, the upper part of the explosion tank is provided with a chimney device, the material outlet end opening of the explosion tank is connected with a slurry collecting tank, the upperpart of the chimney device is connected with a dust discharging pipe, the dust discharging pipe is connected with a dust collecting box, the lower part of the chimney device is connected with a sewage pipeline, and the sewage pipeline is connected with a sewage collecting box. The equipment provided by the invention has the characteristics of a simple structure, high explosion efficiency, stableproduction quality, environmental protection, sanitation and the like.

Description

technical field [0001] The invention relates to the field of mechanical equipment, in particular to steam explosion pulping equipment. Background technique [0002] Lignin is a natural aromatic polymer compound composed of phenylpropane units linked by ether bonds (-O-) and carbon bonds (C-C). In plant fibers, lignin content is second only to cellulose and hemicellulose, and is the third largest natural organic matter, accounting for about 5-30%. Human beings have studied cellulose for thousands of years, but the study of lignin started in 1930 and developed slowly. Lignin has good dispersibility, flame retardancy, solvent resistance, thermal stability, and its molecules have a variety of active functional groups (aryl, phenolic hydroxyl, alcoholic hydroxyl, carbonyl, methoxyl, carboxyl etc.), which have high utilization value in modern industry; at present, high-quality lignin has been widely used, and more than 200 kinds of lignin products have been developed in the worl...

AI Technical Summary

Problems solved by technology

To separate lignin from bagasse, it is necessary to process the bagasse into relatively fine sugarcane cotton-like fibers and make a liquid slurry. Traditional methods often use mechanical crushing and chemical treatment. However, mechanical crushing It is difficult to effectively crush the cells, resulting in low extraction efficiency; while the chemical crushing method is easy to cause the change of the structure of the extract and the reduction or inactivation of the activity, and will cause secondary pollution to the environment. More importantly, the inside of the plant tissue cannot be completely broken

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