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Manufacture method of coal gangue culture substrate

A technology for cultivation substrate and production method, which is applied in the directions of cultivation, soilless cultivation, botanical equipment and methods, etc.

Inactive Publication Date: 2015-02-18
TAIYUAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In addition to the leading coal industry in Shanxi, the vinegar industry is also very developed. The waste residue and vinegar grains of vinegar production have been difficult to be well utilized, and the vinegar grains are used for soil improvement. Not yet reported

Method used

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  • Manufacture method of coal gangue culture substrate
  • Manufacture method of coal gangue culture substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Crush the coal gangue to particles with a particle size of 1-5cm; add vinegar grains, coal gangue humic acid and acrylic acid-vinyl alcohol copolymer to the pulverized coal gangue to form a mixture, wherein coal gangue, vinegar grains, coal gangue humic acid and the mass fraction of acrylic acid-vinyl alcohol copolymer are 80:15:5:0.01 respectively; The prepared mixture is spread on the soil, wherein the thickness of the mixture layer is 5cm, and the thickness of the soil layer is 5cm; Sowing alfalfa in the soil Seeds, grow naturally for 2 years to improve the soil, and finally get the gangue cultivation substrate. Wherein the soil is the cinnamon soil in the north, and the weight percentage of the humus decomposed from the fallen leaves of the northern coniferous forest in the cinnamon soil is 30%.

[0022] After testing, the content of nutrients in the finally obtained gangue cultivation substrate is N: 118mg / Kg, P: 21mg / Kg, K: 151mg / Kg, organic matter: 31g / Kg, and th...

Embodiment 2

[0024] Crush the coal gangue to particles with a particle size of 1-5cm; add vinegar grains, coal gangue humic acid and sodium polyacrylate cross-linked product to the crushed coal gangue to form a mixture, wherein coal gangue, vinegar grains, coal gangue humic acid and the mass fraction of sodium polyacrylate cross-linked product are 83:12:5:0.05 respectively; The prepared mixture is spread on the soil, wherein the thickness of the mixture layer is 10cm, and the thickness of the soil layer is 8cm; Transplant shrubs (1- 2-year-old seedlings) into the substrate, grow naturally for 2 years to improve the soil, and finally obtain the gangue cultivation substrate. Wherein the soil is the cinnamon soil in the north, and the weight percentage of the humus decomposed from the fallen leaves of the northern coniferous forest in the cinnamon soil is 40%.

[0025] After testing, the nutrient content and pH value of the finally obtained coal gangue cultivation substrate are shown in Table...

Embodiment 3

[0029] Crush the coal gangue to particles with a particle size of 1-5cm; add vinegar lees, coal gangue humic acid and polyvinyl alcohol cross-linked polymer to the crushed coal gangue to form a mixture, wherein the coal gangue, vinegar grains, and coal gangue humic The massfraction of acid and polyvinyl alcohol cross-linked polymer is that the mixture that makes respectively 85: 10: 5: 0.1 spreads on the soil, and wherein the thickness of mixture layer is 20cm, and the thickness of soil layer is 10cm; Transplant woody plant ( 2-3 year-old seedlings) into the substrate, grow naturally for 3 years to improve the soil, and finally obtain the gangue cultivation substrate. Wherein the soil is the cinnamon soil in the north, and the weight percentage of the humus decomposed from the fallen leaves of the northern coniferous forest in the cinnamon soil is 50%.

[0030] After testing, the nutrient content and pH value in the finally obtained coal gangue cultivation substrate are shown ...

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Abstract

The invention relates to a manufacture method of a coal gangue culture substrate. The manufacture method of the coal gangue culture substrate provided by the invention comprises the following steps that a) coal gangue is crushed into particles with the particle size being 1 to 5cm; b) vinegar residues, coal gangue humic acid and macromolecular water absorption materials are added into the crushed coal gangue for forming a mixture, and the mass percentage of the coal gangue to the vinegar residues to the coal gangue humic acid to the macromolecular water absorption materials is respectively (80-85):(10-15):5:(0.01-0.1); c) the mixture prepared in the second step is paved onto soil, wherein the thickness of the mixture layer is 5 to 20cm, and the thickness of the soil layer is 5 to 10cm; and d) saline-alkali tolerant plants are planted on the substrate obtained in the third step for 2 to 3 years for finally obtaining the coal gangue culture substrate. When the method provided by the invention is used for preparing the coal gangue culture substrate, the cost for converting the coal gangue into soil capable of being used for planting crops is reduced, and the ecological environment is improved.

Description

technical field [0001] The invention relates to a method for utilizing discarded rock gangue during coal mining and processing, in particular to a method for making a gangue cultivation substrate. Background technique [0002] Coal gangue is solid waste discharged during the coal mining process and coal washing process. It is a black-gray rock with low carbon content and harder than coal that is associated with coal seams during the coal formation process. Including the excavation gangue during the roadway excavation, the gangue extracted from the roof, floor and interlayer during the mining process, and the gangue picked out during the coal washing process. Its main component is Al 2 o 3 , SiO 2 , also contains varying amounts of Fe 2 o 3 , CaO, MgO, Na 2 O, K 2 O.P 2 o 5 , SO 3 And trace rare elements (gallium, vanadium, titanium, cobalt). [0003] From the perspective of coal mining, my country produces 100 million tons of coal every year and discharges about ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G31/00
Inventor 王尚义李素清牛俊杰郭文炯李斌王杰瑜邱丽氚李砧石瑛
Owner TAIYUAN NORMAL UNIV