Combined production method for environment-friendly type multifunctional sand-fixation soil-retention organic fertilizer and paper

Abstract

Disclosed is a joint production process of environment-friendly and multifunctional organic fertilizers which is used for sand consolidation and soil protection and paper making. The purpose of the invention is using ryegrass of agricultural waste to produce environment-friendly and multifunctional organic fertilizers which is used for sand consolidation and soil protection and in joint production of paper making, and no pollution discharges in the production process. The method of the invention comprises that cutting ryegrass into pipe nipples to fill in a stewing retort, adding ammonium hydrogen carbonate, sodium sulfite, potassium sulphate and magnesia into a liquid storage tank after mixing pro rata, adding hot water with a temperature of about 60 DEC G in the liquid storage tank to stir for about 30 minutes, pouring the mixture into the stewing retort to mix with pipe nipples of ryegrass, inletting steam, stewing and reacting in the condition of high temperature and high pressurefor about 2.5 hours to prepare a mixed bag of brown serosity, adopting a tertiary press master to press, filter and separate the mixed bag of brown serosity into paper pulp and black liquor, wherein the paper pulp is applied to bleach to make paper, and the black liquor is applied to cure fertilizer making. Adopting evaporator with outflow freely dropping lamina membranacea to concentrate the black liquor into concentrated black liquor, and then sending the concentrated black liquor into a spray drying tower to be dried and cured into powder.

Description

technical field [0001] The invention relates to a method for producing organic fertilizer, in particular to a method for producing environmentally friendly multifunctional sand-fixing and soil-conserving organic fertilizer by using agricultural waste wheat straw as a raw material and co-producing papermaking. technical background [0002] Plant sand-fixation and vegetation protection technology is currently a more effective sand control technology at home and abroad, but plant sand-fixation needs water on the one hand, and quicksand needs to be fixed on the other hand, otherwise it is easy to be blown away by the wind, and it is difficult for plants to germinate and survive. Therefore, plant sand-fixation needs to be combined with chemical sand-fixation. Combine. The current chemical sand fixation is mainly by spraying chemical cementing substances on the moving sand to form a protective shell with a certain strength on the surface of the sand, which isolates the direct effe...

AI Technical Summary

Problems solved by technology

Chemical sand fixation has fast results and is mainly used in important areas such as airports, railways, and highways; emulsified asphalt or emulsified crude oil, synthetic resins, organic latex, inorganic latex, high molecular polymers, etc. are usually used, but these materials generally have high costs. , shortage of raw materials, not easy to degrade, especially difficult to combine with plant sand fixation measures, etc.