Production method of gangue compressed nutrient soil

Abstract

The invention discloses a production method of gangue compressed nutrient soil. According to the technical scheme, the production method is characterized by comprising the steps of firstly, acidizing gangue and sludge; then, stirring ingredients of the gangue compressed nutrient soil, compressing, carrying out low-temperature microwave sterilization, and then, packaging to obtain a finished product. The gangue compressed nutrient soil is composed of materials such as acidized gangue, acidized sludge, instant sodium silicate, polyvinyl alcohol, ferrous sulfate, peat, flower ceramsites, high-viscosity attapulgite clay, biogas slurry, biogas residues, smashed plant fiber, expanded vermiculite, expanded perlite, super absorbent resin and the like. The gangue compressed nutrient soil contains a great number of nitrogen, phosphorus, potassium, organic matters and various trace elements, is capable of providing various nutrient elements necessary for growth of plants and reducing hazards of pathogenic bacteria and pests to the plants and is beneficial to the normal growth and development of the plants and the protection of the ecological environment. The production method of the gangue compressed nutrient soil is suitable for producing the gangue compressed nutrient soil according to different formulas.

Description

technical field [0001] The invention relates to nutrient soil, in particular to a production method of coal gangue compressed nutrient soil. Background technique [0002] Coal gangue is solid waste discharged during coal mining and coal washing. It is a kind of black-gray rock with low carbon content and harder than coal that is associated with coal seams during the coal formation process; including gangue during roadway excavation 1. The gangue extracted from the roof, floor and interlayer during the mining process and the gangue picked out during the coal washing process. [0003] The accumulation of coal gangue not only occupies the land, but also pollutes the air by spontaneous combustion or causes fires, polluting the atmosphere, and the stacking of coal gangue in the open air will generate a lot of dust. It will be weathered and crushed. In addition, coal gangue will disintegrate after absorbing water, so it is easy to generate dust. Under the action of wind, it will ...

AI Technical Summary

Problems solved by technology

Generally, it is prepared by mixing fertile field soil and decomposed manure. There are also nutrient soils selected from imported high-quality peat and coconut bran mixed in a specific proportion. However, these nutrient soils have not undergone reasonable ingredients and strict disinfection. Conducive to the normal growth and development of seedlings

[0009] Because the treated nutrient soil is relatively light and loose, the conventional product of nutrient soil is relatively large, which is not conducive to reducing the cost of production and transportation