Method and device for aerobic pressurization and high-temperature fermentation of solid organic substances

Abstract

The invention discloses a method and device for aerobic pressurization and high-temperature fermentation of solid organic substances. The method comprises the following steps: classifying solid organic substances through a classifying apparatus; transferring long-fiber solid organic substances into a high-humidity solid organic substance pulverizer, pulverizing, and transferring into a mixer; adding fermentation inocula, N nutritive salts and water into the mixer through a dispenser, uniformly mixing, transferring into a tank for aerobic pressurization and high-temperature fermentation of solid organic substances, and fermenting; and finally, discharging the materials as feeds, organic fertilizers or biological organic fertilizers for use. Gas discharged from the tank for aerobic pressurization and high-temperature fermentation of solid organic substances is purified in a biological gas washing tower, thus solving the tail gas treatment problem. According to the method disclosed by the invention, the solid organic substances with various water contents can be smoothly pulverized; the method is low in cost, high in yield and stable in fermentation temperature, realizes faster and more thorough decomposition and harmless treatment, shortens the fermentation period and improves the efficiency; the device realizes modularization and automation, is small in occupied space and lowers the labor intensity; and multiple devices can be connected in parallel for use.

Description

technical field [0001] The invention belongs to the technical field of resource utilization of solid organic matter, in particular to a method and device for aerobic pressurized high-temperature fermentation of solid organic matter. [0002] technical background [0003] At present, my country's high-efficiency and intensive agriculture and agricultural product processing industry have achieved rapid development, which has also brought a large amount of solid organic resources to be idled and discarded, resulting in waste of organic resources and environmental pollution in many places. Solid organic matter includes straw, Chinese herbal medicine dregs, cassava dregs, bagasse, livestock and poultry dung, press-filtered bacteria sludge, etc. After pretreatment such as crushing, biotechnology can be used to convert it into It is rich in humic acid and nutrient products that animals and plants can absorb. It returns to modern agricultural production and reduces the use of chemica...

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Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a method and device for aerobic pressurized high-temperature fermentation of solid organic matter, which can not only solve the problems of high energy consumption, easy clogging of the screen and low output in the traditional method of pretreatment of solid organic matter, but also Solve the problems of large land occupation, difficult waste gas treatment, difficult control of fermentation temperature and process, slow evaporation of water, long fermentation cycle, high cost of collection and transportation in traditional methods, realize system equipment, and utilize solid organic matter as resources on site, which is beneficial to technology promotion and application of equipment

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