Method for preparing organic multi-microelement fermented potash fertilizer by fermenting insoluble potassic rock at high temperature

Abstract

The invention discloses a method for preparing an organic multi-microelement fermented potash fertilizer by fermenting an insoluble potassic rock at the high temperature. The method comprises the following steps: (1) choosing the raw material: choosing the insoluble potassic rock as the main material; (2) pulverizing the main material and an auxiliary material; (3) stacking and fermenting; (4) fermenting at the high temperature; (5) complementing nutrients; and (6) pelleting and drying. Through adoption of the method, the natural resources are effectively utilized, particularly the insoluble potash rock; a large quantity of industrial waste residues is used, so that the harmful is turned into the beneficia; the produced organic multi-microelement fermented potash fertilizer improves the fertilizer structure in the agricultural production; the fertilizer efficiency of the organic multi-microelement fermented potash fertilizer is equivalent to that of the traditional farmyard manure; the organic multi-microelement fermented potash fertilizer is used for planting vegetables and grains; and the flavors of the vegetables and grains are fresh, and the tastes of the vegetables and grains are good. The pollution caused by urban and rural wastes is reduced, the environment condition is improved, the qualities of the vegetables and the grain crops are also improved, and the method not only has economic benefits, but also has higher social benefits, and is suitable for all urban and rural areas.

Description

technical field [0001] The invention relates to a fertilizer production method, in particular to a method for preparing organic multi-fermented potassium fertilizer by fermentation. technical background [0002] Insoluble potassium rock is the abbreviation of insoluble potassium-aluminosilicate rock. There are very few soluble potassium ore resources in my country, but relatively rich insoluble potassium ore resources. Potassium is the seventh most abundant element in the earth's crust, and it is 23 times larger than phosphate rock. The development and utilization of insoluble potassium ore resources to produce potassium-containing multi-element fertilizers has always been a technical problem that the scientific and technological circles at home and abroad are focusing on. [0003] In the Chinese patent database, there are not many applications related to the production of fertilizers from insoluble potassium ore resources. Among them: No. 92103884.4 "Preparation of Silico...

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Problems solved by technology

[0003] In the Chinese patent database, there are not many applications related to the production of fertilizers from insoluble potassium ore resources. Among them: No. 92103884.4 "Preparation of Silicon Manganese Nitrogen Phosphorus Potassium Organic Multi-Micro Compound Fertilizer by High Temperature Fermentation", the disclosed process is to combine organic residues with waste Minerals are mixed and stirred, high-temperature biochemical fermentation is carried out, and white film-like bacteria microorganisms are cultivated, and then infiltrated with various trace element substances separately or simultaneously, and fully stirred, so that the microorganisms can decompose them into micronutrient elements that are beneficial to plant growth. Granulating and drying to produce organic multi-micro compound fertilizer, but not specifically utilizing insoluble potassium ore resources; No. 200810069029.X "A method for producing potassium calcium fertilizer with insoluble potassium-containing rock and phosphogypsum to co-produce sulfuric acid", discloses the use of insoluble potassium ore Potassium-containing rock, phosphogypsum and anthracite are mixed according to the mass ratio of 1:0.7~2.2:0.05~0.25, and after grinding, ball making or block making, they are reduced and roasted in a rotary kiln, shaft kiln or tunnel kiln, and the sintered clinker is crushed and packaged It is a potassium-calcium fertilizer product, the energy consumption of this method is high, and the utilization of potassium resources is insufficient; No. 200910017707.2 "A method for producing nitrogen, phosphorus and potassium compound fertilizer by using water-insoluble potassium-containing rocks", the disclosed method is in the treatment of potassium-containing rocks Phosphorus is supplemented during the process and the pH value of the solution at different stages is strictly controlled to prepare nitrogen, phosphorus and potassium compound fertilizers. This method cannot fully convert potassium in insoluble potassium-containing rocks into soluble potassium, and does not mention high-temperature fermentation

However, this method does not specifically utilize insoluble potassium ore resources, nor does it use high-temperature fermentation

[0005] At present, there is no new technology report on the production of potassium-containing multi-element fertilizers using insoluble potassium ore resources

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