Production method of gangue compressed nutrient soil

A technology for compressing nutrient soil and production method, which can be used in fertilizer mixtures, fertilization devices, applications, etc., and can solve problems such as large volume, disadvantage, and lower production and transportation costs.

Active Publication Date: 2014-10-29
平凉华晨非金属应用科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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...

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0063] Below in conjunction with embodiment the present invention will be further described:

[0064] 1. The production method of compressed nutrient soil with coal gangue: (1) Input the ingredients of compressed nutrient soil with coal gangue into the running mixer for stirring, and after stirring evenly, input it into a tablet press to compress into compressed nutrient soil flakes of coal gangue, and compress nutrient soil with coal gangue The thickness of the soil flakes is controlled at 25 mm; (2) The coal gangue compressed nutrient soil flakes are transported to a microwave belt drying and sterilizing machine for low-temperature sterilization and drying, the temperature is controlled at 70-90 °C, and the time is controlled at 50 Minutes, the moisture content of the sterilized and dried coal gangue compressed nutrient soil flakes is ≤15%; (3) the sterilized and dried coal gangue compressed nutrient soil flakes are transported to the thermal insulation sterilizer, and the co...

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PUM

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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 ...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCY02P20/129
Inventor 黄飞翔黄允金王鲁海金白云管永祥许庆华许盛英蒋文兰
Owner 平凉华晨非金属应用科技有限公司
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