Method for preparing slurry-state fertilizer substrate by using garbage containing organic matters

Abstract

The invention relates to a method for preparing a slurry-state fertilizer substrate by using garbage containing organic matters. The method comprises the following steps of: putting the screened garbage containing the organic matters into a flash evaporation blaster, introducing steam to the flash evaporation blaster, controlling the temperature in the flash evaporation blaster to be 210-230 DEG C, the pressure to be 2-3Mpa and the pressure maintaining time to be 80-100 seconds, then finishing flash evaporation blasting within 0.01 second, and preparing the slurry-state fertilizer substrate from the pretreated garbage containing the organic matters. The method is short in acting time, large in blasting power, low in energy consumption, high in efficiency and high in treatment speed, and no harmful gas, such as Dioxin can be generated as the maximum temperature is 230 DEG C. The method disclosed by the invention is convenient for production, strong in operability and environment-friendly, the problems of polluting the environment from garbage and endangering the ecological environment are effectively solved and the cyclic utilization is achieved.

Description

technical field [0001] The invention belongs to the field of making fertilizer from garbage, in particular to a method for preparing a slurry-like fertilizer base material by using organic garbage. Background technique [0002] Fertilizer base material is one of the main materials for preparing fertilizers. According to the organic fertilizer standards and the requirements of different crops for fertilizers, a certain proportion of nutrients can be added to the fertilizer base material to produce various organic fertilizers. At present, organic waste mainly relies on composting, but its composting cycle is long, and impurities and heavy metals cannot be effectively separated. Long-term application of compost products may easily cause impurities and heavy metals to deposit in the soil and pollute groundwater. Moreover, there is an unpleasant smell during the composting process, the organic content of the product is unstable, a large amount of nutrients are released and degrad...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a method for preparing slurry-like fertilizer base material by using organic waste, which has short time for preparing fertilizer base material, large processing capacity, high fertilizer efficiency, convenient production and strong operability , Effectively solve the problems of garbage polluting the environment and endangering the ecology, realizing recycling, green and environmental protection