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Preparation method of organic fertilizer rich in mineral elements

A technology of organic fertilizers and mineral elements, applied in organic fertilizers, animal carcass fertilizers, excrement fertilizers, etc., can solve the problems of destroying the ecological environment of mining areas, affecting the quality of underground water in mining areas, wasting land resources, etc., to facilitate plant absorption, facilitate reproduction, The effect of improving the soil

Pending Publication Date: 2020-12-29
望谟县木槿花开园林景观有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The coal gangue piled up all year round not only wastes a lot of valuable land resources, but also destroys the ecological environment of the mining area, affects the underground water quality of the mining area, and destroys the landscape, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A preparation method of an organic fertilizer rich in mineral elements, which comprises the following steps:

[0023] S1: Coal gangue is crushed, and the coal gangue is crushed by a crusher to obtain powder. Further, after the coal gangue is crushed, it needs to be sieved, and the mesh number of the coal gangue powder is required to be more than 200;

[0024] S2: Molding, pressing the mixture through a molding machine, and after the mixture is formed, it is convenient for transportation, storage, and subsequent processing;

[0025] S3: heat activation, heat the mixture formed in S2 and activate it. In this embodiment, the heating equipment used is tunnel kiln, rotary kiln, chamber kiln, shuttle kiln, trolley kiln and microwave oven. One type of kiln, the preferred heating equipment is a rotary kiln. When heating, its heating temperature is 30°C / min. After reaching the holding temperature of 1200°C, heat preservation is carried out. The holding time is 1h. Through heat p...

Embodiment 2

[0032] A preparation method of an organic fertilizer rich in mineral elements, which comprises the following steps:

[0033] S1: Coal gangue is crushed, and the coal gangue is crushed by a crusher to obtain powder. Further, after the coal gangue is crushed, it needs to be sieved, and the mesh number of the coal gangue powder is required to be more than 200;

[0034] S2: Molding, pressing the mixture through a molding machine, and after the mixture is formed, it is convenient for transportation, storage, and subsequent processing;

[0035] S3: heat activation, heat the mixture formed in S2 and activate it. In this embodiment, the heating equipment used is tunnel kiln, rotary kiln, chamber kiln, shuttle kiln, trolley kiln and microwave oven. One type of kiln, the preferred heating equipment is a rotary kiln. When heating, its heating temperature is 20°C / min. After reaching the holding temperature of 1100°C, heat preservation is carried out. The heat preservation time is 4 hours....

Embodiment 3

[0042] A preparation method of an organic fertilizer rich in mineral elements, which comprises the following steps:

[0043] S1: Coal gangue is crushed, and the coal gangue is crushed by a crusher to obtain powder. Further, after the coal gangue is crushed, it needs to be sieved, and the mesh number of the coal gangue powder is required to be more than 200;

[0044] S2: Molding, pressing the mixture through a molding machine, and after the mixture is formed, it is convenient for transportation, storage, and subsequent processing;

[0045] S3: heat activation, heat the mixture formed in S2 and activate it. In this embodiment, the heating equipment used is tunnel kiln, rotary kiln, chamber kiln, shuttle kiln, trolley kiln and microwave oven. A kind of kiln, the preferred heating equipment is a rotary kiln. When heating, its heating temperature is 10°C / min. After reaching the holding temperature of 1000°C, it is kept for 2 hours. Through the heat preservation, the powder can be f...

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PUM

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Abstract

The invention discloses a preparation method of an organic fertilizer rich in mineral elements. The preparation method comprises the following steps: S1, crushing coal gangue; S2, molding; S3, thermalactivation; S4, quenching; S5, drying; S6, crushing, and S7, mixing the raw materials, and mixing the coal gangue powder, the willow bark, the straw powder, the livestock manure, the mixed strain powder and the amino acid in a stirrer to obtain a mixture; S8; dispersing: dispersing the mixture obtained in the S7, exposing the dispersed mixture to the sun for 3-5 hours, and ventilating and airingto obtain the organic fertilizer. According to the invention, trace elements in soil are supplemented, and soil activity, water retention and air permeability are improved; in the activation process of the coal gangue, micropores and mesopores are formed, a carrier is provided for strains in soil, and propagation of microorganisms is facilitated; the heavy metals in the soil can be removed, and after the amino acids are decomposed, the heavy metals combined with the amino acids can be solidified in micropores and mesopores of the coal gangue.

Description

technical field [0001] The invention relates to the technical field of agricultural fertilizers, in particular to a method for preparing organic fertilizers rich in mineral elements. Background technique [0002] Coal gangue is a solid industrial waste produced during coal mining and processing, which contains a variety of mineral components. Among them, the content of kaolin and quartz accounts for more than 50%, and may also contain illite, chlorite, muscovite, feldspar, pyrite, siderite, hematite, calcite and other crystal phase minerals. Among them, kaolinite, illite, chlorite, muscovite, and feldspar belong to aluminous clay minerals, all of which have good adsorption properties. The main chemical components of coal gangue include AL2O3, SiO2, CaO, MgO, Fe2O3, K2O and Na2O. The contents of these chemical components fluctuate greatly depending on the geological age and region of the coal seam. [0003] However, in my country, the coal gangue stockpiled by coal enterpr...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/80
CPCC05C11/00C05G3/00C05G3/80C05D9/02C05F1/00C05F3/00
Inventor 余敏
Owner 望谟县木槿花开园林景观有限公司
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