CN102783400A - Manufacture method of coal gangue culture substrate - Google Patents
Manufacture method of coal gangue culture substrate Download PDFInfo
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- CN102783400A CN102783400A CN2012101886044A CN201210188604A CN102783400A CN 102783400 A CN102783400 A CN 102783400A CN 2012101886044 A CN2012101886044 A CN 2012101886044A CN 201210188604 A CN201210188604 A CN 201210188604A CN 102783400 A CN102783400 A CN 102783400A
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- gangue
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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
The present invention relates to a kind of method that rock gangue discarded in coal mining and the process is used, relate in particular to a kind of preparation method of gangue cultivation matrix.
Background technology
Gangue is the solid waste that discharges in coal mining process and the coal washing process, be a kind of lower with a kind of phosphorus content of coal seam association in the coal-forming process, than the hard grey black look rock of coal.Comprise the spoil of choosing spoil and the coal washing process of extraction in top board, base plate and interlayer in digging gangue in the tunnelling process, the mining process of washing.Its main component is Al
2O
3, SiO
2, also contain the Fe that quantity does not wait in addition
2O
3, CaO, MgO, Na
2O, K
2O, P
2O
5, SO
3With micro-rare element (gallium, vanadium, titanium, cobalt).
From coal mining, annual 100000000 tons of coals, about 1,400 ten thousand tons of the discharging spoils produced of China; Process from coal washing, 2,000 ten thousand tons of 100,000,000 tons of coking coal dischargings of every washing spoil amounts are whenever washed 100,000,000 tons of thermal coals, 15,000,000 tons of discharging spoil amounts.2005,1,045 hundred million tons of domestic all kinds of Coal Production coals, 38,500,000,000 tons of coal washing, hundred million tons of discharging spoil amount 19-20.Thereby, seat surplus the existing hillock 1500 in national state-owned colliery, accumulating amount (accounts for more than 40% of Chinese industrial solid waste total emission volumn) more than 3,000,000,000 tons.A large amount of stackings of gangue; Not only cover the soil, influence ecological environment, spoil leaching water will pollute surrounding soil and underground water; And contain certain combustible in the gangue; Issue in suitable condition and to be conigenous combustion, pernicious gas pollutant atmospheres such as discharging sulphur dioxide, nitrogen oxide, oxycarbide and flue dust influence the healthy of mining area resident.
Along with continuing to increase of national environmental protection law enforcement dynamics, people solve the gangue environmental pollution problem and seem more and more outstanding the raising of environmental quality requirement.And containing trace elements such as the required B of a large amount of organic matters, plant growing, Zn, Cu, Mo, Mn in the gangue, is desirable soil matrix, how to be used, and turning waste into wealth is the heat subject of current research.
Carried out at present both at home and abroad about using the gangue filling to reclaim and improving the research of the ecotope of coal gangue hill.
" flyash and gangue filling reclaim basic research " (" modern agriculture science and technology " the 20th phase in 2009, Li Xue, China Mining University's environment and mapping institute) discloses a kind of method of using the gangue filling to reclaim.Use the P in soil H after this method is reclaimed very high, heavy metal pollution is comparatively serious, is not suitable for most of plant growth.
Patent 201110001682.4 discloses a kind of preparation method of sandstone rock slope afforesting matrix.This method has been improved the physicochemical property of soil; Promote revegetation; Yet use this method to improve soil and need use materials such as the glue peptone bacillus of exact magnitude, husky angle chlamydomonas, chlorella, bacillus megaterium, stalk, feces of livestock and poultry, cake fertilizer, polyacrylamide, cement, nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, zinc fertilizer, iron fertilizer, boron fertilizer, manganese fertilizer, molydbenum fertilizer and copper fertilizer; Complicated process of preparation, cost is high.
Patent 200710063475.5 discloses a kind of greening method of self-ignition coal gangue hill.This method mainly realizes the soil matrix that greening is required through on coal gangue hill, covering the nearly half meter soil horizon of inert material and thickness; Really do not utilize gangue to contain the characteristics of a large amount of organic matters and trace element; Gangue is not improved yet, and only be a kind of trailing of coal gangue hill.
Shanxi is except the coal industry whole nation is leading, and it is also very flourishing to make the vinegar industry, and the waste residue vinegar of making vinegar is poor to be difficult to obtain fine utilization always, uses that vinegar is poor to carry out soil melioration and do not appear in the newspapers as yet.
Summary of the invention
For solving the problem that exists in the prior art, make full use of the characteristics that gangue contains a large amount of organic matters and trace element, carry out soil melioration by vinegar is poor, to turn waste into wealth, the present invention provides a kind of preparation method of gangue cultivation matrix.
The preparation method of gangue cultivation matrix provided by the invention may further comprise the steps: be the particle of 1-5cm with the gangue pulverizing for particle diameter a); B) add in the gangue after pulverizing that vinegar is poor, gangue humic acid and macromolecule water absorbent material form mixture, wherein gangue, vinegar is poor and the mass fraction gangue humic acid is respectively 80-85: 10-15: 5: 0.01-0.1; C) mixture that step b) is made is layered on the soil, and wherein the thickness of mixture layer is 5-20cm, and edaphic thickness is 5-10cm; Plantation saline alkali tolerant plant 2-3 finally obtains the gangue cultivation matrix on the matrix that step c) obtains.
Said soil can be selected the cinnamon soil in the north, and the weight percentage of humus is 30%-50% in this cinnamon soil.
Said humus is that the main component decomposition forms with the fallen leaves of boreal forest.
Said saline alkali tolerant plant can be selected clover, during plantation grass-seed is sowed in said soil horizon.
Said saline alkali tolerant plant can be selected periploca spium, caragana microphylla or sea-buckthorn, and the shrub that will grow 2 years during plantation is transplanted in the matrix.
Said saline alkali tolerant plant can be selected shrubby flase indigo, Chinese pine or arbor-vitae, and the higher plant that will grow 2 years during plantation is transplanted in the matrix.
In the mixture that said gangue, vinegar are poor, gangue humic acid and macromolecule water absorbent material are formed, the mass fraction of each material preferably was respectively 83: 12: 5: 0.05.
Embodiment
Coal gangue hill is a kind of brand-new land occupation condition that manual work is banked up and formed, and it is structural poor with space property, and water retention capacity is poor.In experiment repeatedly, it is higher that the inventor finds to pulverize the PH of back gangue, and that vinegar industry is made in Shanxi is flourishing, and the poor output of vinegar is very big, vinegar poor just can in the alkalescence of gangue, and, the poor porosity that can increase matrix of vinegar; In addition, adding the gangue humic acid can combine with elements such as nitrogen, phosphorus, potassium, thereby improves the soil; Simultaneously, the gangue after the pulverizing adds macromolecule water absorbent material, can increase its water retention property, increases the moisture of cultivation matrix, and is very suitable for the weather that north arid is short of rain.Through the plantation vegetation, nature reformation soil, it is abundant and be easy to the gangue cultivation matrix by common vegetation absorbs, acid-base value is moderate to obtain nutriment at last.
Embodiment one
Colliery powder is broken to the particle that particle diameter is 1-5cm; Add in the gangue after pulverizing that vinegar is poor, gangue humic acid and AA-E alcohol copolymer form mixture, wherein the mass fraction of poor, gangue humic acid of gangue, vinegar and AA-E alcohol copolymer was respectively 80: 15: 5: 0.01; The mixture that makes is layered on the soil, and wherein the thickness of mixture layer is 5cm, and edaphic thickness is 5cm; In soil, sow alfalfa seed, self-sow finally obtained the gangue cultivation matrix to improve the soil in 2 years.Wherein said soil is the cinnamon soil in the north, is that the weight percentage that main component is decomposed the humus that forms is 30% with the fallen leaves of boreal forest in this cinnamon soil.
Through detecting, the content of nutrient component is N:118mg/Kg in the gangue cultivation matrix that finally obtains, P:21mg/Kg, and K:151mg/Kg, organic matter: 31g/Kg, P in soil H value is 6.5.
Embodiment two
Colliery powder is broken to the particle that particle diameter is 1-5cm; Add in the gangue after pulverizing that vinegar is poor, gangue humic acid and Sodium Polyacrylate cross-linking agent form mixture, wherein the mass fraction of poor, gangue humic acid of gangue, vinegar and Sodium Polyacrylate cross-linking agent was respectively 83: 12: 5: 0.05; The mixture that makes is layered on the soil, and wherein the thickness of mixture layer is 10cm, and edaphic thickness is 8cm; In matrix, self-sow finally obtained the gangue cultivation matrix to improve the soil in 2 years to transplant shrub (seedling that 1-2 gives birth to).Wherein said soil is the cinnamon soil in the north, is that the weight percentage that main component is decomposed the humus that forms is 40% with the fallen leaves of boreal forest in this cinnamon soil.
Through detecting, nutrient composition content and pH value are as shown in table 1 in the gangue cultivation matrix that finally obtains.
The tabulation of table 1 gangue cultivation matrix Analysis of Nutritional--with the shrub is example
Embodiment three
Colliery powder is broken to the particle that particle diameter is 1-5cm; Add in the gangue after pulverizing that vinegar is poor, gangue humic acid and polyvinyl alcohol crosslinked polymer form mixture; Wherein the mass fraction of poor, gangue humic acid of gangue, vinegar and polyvinyl alcohol crosslinked polymer was respectively 85: 10: 5: 0.1 mixture that makes is layered on the soil; Wherein the thickness of mixture layer is 20cm, and edaphic thickness is 10cm; In matrix, self-sow finally obtained the gangue cultivation matrix to improve the soil in 3 years to transplant woody plant (seedling that 2-3 gives birth to).Wherein said soil is the cinnamon soil in the north, is that the weight percentage that main component is decomposed the humus that forms is 50% with the fallen leaves of boreal forest in this cinnamon soil.
Through detecting, nutrient composition content and pH value are as shown in table 2 in the gangue cultivation matrix that finally obtains.
The tabulation of table 2 gangue cultivation matrix Analysis of Nutritional--with the arbor is example
In addition, experiment is found, uses polyvinyl alcohol crosslinked polymer also can play good soil moisture improved effect as macromolecule polymeric material.
Though embodiment one, two, three has selected the vegetation of herbaceous plant, shrub and magaphanerophytes plantation when improving the soil respectively for use, in practical operation, also can select the mode of draft, shrub and the plantation of arbor mix and match.
Use the method for the present invention to prepare soil, made full use of Shanxi Province's coal mining and be pickled with grains or in wine, turn waste into wealth, reduced the cost that gangue is converted into the soil that can plant plant, improved ecotope with the by product gangue of making the vinegar industry and vinegar.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope that the present invention protects.
Claims (10)
1. the preparation method of a gangue cultivation matrix, it may further comprise the steps:
A) be the particle of 1-5cm with the gangue pulverizing for particle diameter;
B) add in the gangue after pulverizing that vinegar is poor, gangue humic acid and macromolecule water absorbent material form mixture, wherein gangue, vinegar is poor and the mass fraction gangue humic acid is respectively 80-85: 10-15: 5: 0.01-0.1;
C) mixture that step b) is made is layered on the soil, and wherein the thickness of mixture layer is 5-20cm, and edaphic thickness is 5-10cm;
D) on the matrix that step c) obtains, plant saline alkali tolerant plant, promptly obtain the gangue cultivation matrix behind the 2-3.
2. the method for claim 1 is characterized in that, said soil is the cinnamon soil in the north, and the weight percentage of humus is 30%-50% in this cinnamon soil.
3. method as claimed in claim 2 is characterized in that, said humus is that the main component decomposition forms with the fallen leaves of boreal forest.
4. the method for claim 1 is characterized in that, said saline alkali tolerant plant is a herbaceous plant, during plantation grass-seed is sprinkled upon in the said soil horizon.
5. method as claimed in claim 4 is characterized in that, said herbaceous plant is a clover.
6. the method for claim 1 is characterized in that, said saline alkali tolerant plant is shrub or woody plant, and the shrub or the woody plant that will grow 2 years during plantation are transplanted in the matrix.
7. method as claimed in claim 6 is characterized in that, said shrub is periploca spium, caragana microphylla or sea-buckthorn.
8. like the described method of claim 6-7, it is characterized in that said woody plant is shrubby flase indigo, Chinese pine or arbor-vitae.
9. the method for claim 1 is characterized in that, said gangue, vinegar are poor, the mass fraction of gangue humic acid and macromolecule water absorbent material was respectively 83: 12: 5: 0.05.
10. the method for claim 1 is characterized in that, said macromolecule water absorbent material is Sodium Polyacrylate cross-linking agent, AA-E alcohol copolymer, acrylonitrile polymerization is saponified or polyvinyl alcohol crosslinked polymer.
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| CN201210188604.4A CN102783400B (en) | 2012-06-08 | 2012-06-08 | Manufacture method of coal gangue culture substrate |
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| CN201210188604.4A CN102783400B (en) | 2012-06-08 | 2012-06-08 | Manufacture method of coal gangue culture substrate |
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| CN102783400A true CN102783400A (en) | 2012-11-21 |
| CN102783400B CN102783400B (en) | 2015-02-18 |
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Cited By (7)
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| CN103262688A (en) * | 2013-05-08 | 2013-08-28 | 四川海吉尔环保科技开发有限公司 | Method utilizing gray gangue in coal gangue to prepare soil |
| CN105917944A (en) * | 2016-05-25 | 2016-09-07 | 句容市天王镇戴庄有机农业专业合作社 | Vegetative propagation method for organic cherry tomatoes |
| CN106866263A (en) * | 2017-03-21 | 2017-06-20 | 黑龙江金正好生物科技有限公司 | A kind of bastard coal ground mass rice nursery substrate and production method |
| CN113243279A (en) * | 2021-06-02 | 2021-08-13 | 辽宁大学 | Coal gangue hill matrix improvement method |
| CN113409669A (en) * | 2021-05-27 | 2021-09-17 | 山东师范大学 | Teaching demonstration device for landslide |
| CN115606359A (en) * | 2022-10-12 | 2023-01-17 | 北京化工大学 | Ecological restoration method for accelerating weathering of surface coal gangue accumulation land in plateau mining area |
| CN116267079A (en) * | 2023-03-22 | 2023-06-23 | 美丽华夏生态环境科技有限公司 | Method for recovering vegetation of coal gangue mountain by using starch-based biodegradable plant-growing bag |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103262688A (en) * | 2013-05-08 | 2013-08-28 | 四川海吉尔环保科技开发有限公司 | Method utilizing gray gangue in coal gangue to prepare soil |
| CN105917944A (en) * | 2016-05-25 | 2016-09-07 | 句容市天王镇戴庄有机农业专业合作社 | Vegetative propagation method for organic cherry tomatoes |
| CN106866263A (en) * | 2017-03-21 | 2017-06-20 | 黑龙江金正好生物科技有限公司 | A kind of bastard coal ground mass rice nursery substrate and production method |
| CN113409669A (en) * | 2021-05-27 | 2021-09-17 | 山东师范大学 | Teaching demonstration device for landslide |
| CN113243279A (en) * | 2021-06-02 | 2021-08-13 | 辽宁大学 | Coal gangue hill matrix improvement method |
| CN115606359A (en) * | 2022-10-12 | 2023-01-17 | 北京化工大学 | Ecological restoration method for accelerating weathering of surface coal gangue accumulation land in plateau mining area |
| CN116267079A (en) * | 2023-03-22 | 2023-06-23 | 美丽华夏生态环境科技有限公司 | Method for recovering vegetation of coal gangue mountain by using starch-based biodegradable plant-growing bag |
| CN116267079B (en) * | 2023-03-22 | 2024-01-02 | 美丽华夏生态环境科技有限公司 | Method for recovering vegetation of coal gangue mountain by using starch-based biodegradable plant-growing bag |
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| CN102783400B (en) | 2015-02-18 |
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