CN108990458A - The wastes such as extensive treatment and use gangue and the method for administering stony desertification - Google Patents
The wastes such as extensive treatment and use gangue and the method for administering stony desertification Download PDFInfo
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- CN108990458A CN108990458A CN201810734578.8A CN201810734578A CN108990458A CN 108990458 A CN108990458 A CN 108990458A CN 201810734578 A CN201810734578 A CN 201810734578A CN 108990458 A CN108990458 A CN 108990458A
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- soil
- gangue
- stony desertification
- desertification
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
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- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of wastes such as extensive treatment and use gangue and the method for administering stony desertification, it is related to coal base solid waste and disposes on a large scale and utilization and stony desertification treatment method and ecological restoration technical field.The present invention is to combine the extensive disposition of coal base solid waste with Rocky Desertification Control, using the coals base solid waste such as gangue, flyash and desulfurized gypsum and/or local original rubble, rock is levigate manufacture of intraocular gradation composite soil and it is covered in stony desertification earth's surface, achieve the purpose that dispose these solid waste on a large scale and realizes that Rocky Desertification Control kills two birds with one stone.The reset condition and natural conditions of material is utilized in the present invention as far as possible；Coal base solid waste can be eliminated on a large scale, thoroughly administer gangue, flyash stacks problem on a large scale, releasing safety and environmental pollution hidden danger；Realize the thorough ecological management in Rocky Desertification Region；It can be combined with other organic wastes, to be further driven to the improvement of other wastes；Ecological circulation economy can be formed in an area.
Description
Technical field
It is disposed on a large scale the present invention relates to coal base solid waste and utilization and stony desertification treatment method and ecological reestablishment neck
The wastes such as domain more particularly to a kind of extensive treatment and use gangue and the method for administering stony desertification.
Background technique
Gangue is the typical solid waste being discharged during coal picks up.China is coal production big country, annual each
The Piling of Gangue Cheng Shan of ground discharge flood tide, it is difficult to digest, has added up tens tons of gangue of stockpiling, huge, heap at present
Discharge capacity is still increasing at an amazing speed.The stockpiling of gangue not only a large amount of land occupations, easily formation fugitive dust, soil erosion,
The man-made disasters such as mud-rock flow, landslide and disintegration, and environment is seriously polluted, serious shadow is caused to people's lives and health
It rings.Currently, the practical disposal utilization rate of China's gangue is lower, it would be highly desirable to extensive disposition.Flyash and desulfurized gypsum are mainly
The fine-grained solids waste of coal-burning power plant's discharge, also belongs to coal base solid waste, and every annual emissions are huge, and long-term stack does not only take up sky
Between, and seriously pollute environment.Either gangue, flyash or desulfurized gypsum have dozens or even hundreds of kind of disposition benefit at present
With method, country also carries forward vigorously its joint disposal and utilization, including be made into soil and fertilizer, soilless culture substrate,
It administers salt-soda soil, road application, manufacture rock wool, extract valuable metal and higher value application etc..However, since cost, source are converged
The a variety of causes such as matching, at present no matter single or comprehensive treatment and use technology, either in the whole nation or some areas,
All have not seen the extensive disposition for really realizing the coals base solid wastes such as gangue, flyash and desulfurized gypsum.It is inexpensive, extensive
Disposal technology, approach or application scenarios become solve these solid wastes administer bottleneck problem.
Stony desertification, that is, earth's surface land desertification is the surface soil stream as caused by various factors especially human factor
It loses, the naked leakage of rock, the scene of desertification is presented, be unfavorable for or even be difficult to be suitble to plant growth.Earth's surface stony desertification especially severe
The harm of stony desertification is very serious, is the forfeiture of land resource first, in turn results in water source and is difficult to conserve, agricultural production conditions and
Ecological environment just further deteriorates, and forms vicious circle.Rocky Desertification Region is also easy to that the geology such as mountain torrents, landslide and mud-rock flow occur
Disaster.These problems or their superposition may further result in many social concerns such as population, existence, the energy and poverty.This
Outside, stony desertification is also highly relevant with local people's poverty status.Stony desertification is distributed in China than wide, is especially mainly in karst
Area, such as a counties and districts in south and southwest more than 400 in China are distributed, and being related to province includes Guangdong, and Guangxi is expensive
State, Yunnan etc..Currently, China pays much attention to the improvement of stony desertification, proposes various ways, multi-pronged comprehensive treatment stony desertification
River harnessing ideas.Although achieving positive regulation effect at present, on the one hand, many existing improvement are more preliminary, consolidate
Or radical cure is difficult；On the other hand, many places still have a large amount of stony desertification earth's surfaces especially severe stony desertification earth's surface to be difficult to obtain
Effectively administer.Therefore, the urgent need that stony desertification is still many areas in China is administered on a large scale.The root of stony desertification in soil,
Radical cure measure is also in soil.For there is the slight stony desertification earth's surface of soil, the core of prevention and treatment is to prevent erosion.For severe stony desert
Change earth's surface, if local have extra soil that can provide utilization, soil covering stony desertification earth's surface can be taken, then solve the water and soil of earthing
The problem of holding.However, mountain areas many for Southwestern China, scarce soil is the largest status, and no extra soil is available.To these ground
The essence of area's stony desertification is exactly to lack soil.About the improvement of these severe stony desertification earth's surfaces, large-scale low-cost is had not yet to see
Soil building technical solution and application example.
Summary of the invention
The object of the invention is that overcoming shortcoming and defect of the existing technology, a kind of extensive treatment and use is provided
The wastes such as gangue and the method for administering stony desertification, specifically, being to be lost the serious and biggish stony desert of range for surface soil
Change area, if local or when nearby soil is rare but extensive there are gangue, flyash and desulfurized gypsum etc. coal base solid waste, mentions
The basic improvement of stony desertification had not only been realized for one kind, but also realized the side of the extensive or even thorough treatment and uses of wastes such as gangue
Method.
The object of the present invention is achieved like this:
The extensive disposition of coal base solid waste is combined with Rocky Desertification Control, utilizes the coals such as gangue, flyash and desulfurized gypsum
Base solid waste and/or local original rubble, rock is levigate manufacture of intraocular soil are simultaneously covered in stony desertification earth's surface, reach extensive disposition
These solid waste simultaneously realize the purpose that Rocky Desertification Control kills two birds with one stone.To reduce cost as far as possible, answered in technical measures
It reduces working link to the greatest extent, reduces the processing to waste as far as possible and be transformed.
Specifically, the technical solution of this method includes the following steps:
1. determining candidate improvement place: assessing the stony desertification earth's surface purposes of quasi- improvement, to the soil texture (partial size composition)
And quantity, the form of overlying soil propose demand；
2. gangue sorting: to the gangue of stacking according to particle size sorting, by spoil particulate group, middle grain group and thick
Grain group (including block stone or rubble) is therefrom separated, and each standby soil building is used；Grain group division can according to actual needs or
Experience accumulation is determined, can be with therein one or more groups of；
3. spoil is broken: when particulate group in existing gangue or middle grain group accounting or absolute quantity deficiency soil building accounting require or use
When amount demand, coarse grain group gangue is crushed beading group or middle grain group；
Above two step, for processing newly generated gangue in future, can be increased in coal washery production link for existing Gangue
Broken, the sorting of gangue are required, can lower cost directly form particulate group, middle grain group and coarse grain group gangue on demand；
4. pellet pre-processes: according to assay as a result, by nocuousness such as heavy metals in spoil, flyash, desulfurized gypsum pellet
Substance is pre-processed；
5. by puddling manufacturing artificial gradation composite soil；It is known as " raw-soil " by the composite soil that the above link obtains；Comprehensively consider
The intended applications of artificial graded soil determine the quality of Artificial Soil, that is, determine spoil, flyash, desulfurized gypsum and organic waste
Materials composition, partial size composition, then by puddling manufacturing artificial gradation composite soil；
It is uniformly mixed and improves efficiency to guarantee, special mixing device should be set；Drying need to be kept in mixing initial stage each material component
State first carries out dry-mixed；After mixing, to prevent dust, appropriate atomized water spray humidification, humidification amount is not formed with mixing hardened is
Principle；
Spoil grogs diameter is larger, the thick skeleton as the raw-soil, it is ensured that porosity, flyash and desulfurized gypsum are fine grained soil, are mixed and stirred
Good gradation is formed together；It is disintegrated naturally in view of gangue is subsequent, thick particle size content can be improved in the early stage；In addition,
Soil and fertilizer can also be participated in blending in the proper ratio, play the role of the extensive use of chemical fertilizer raw-soil by this link.
6. stony desertification earth's surface pre-processes: determining candidate improvement place first, then carry out " leakage detection is filled a vacancy " for the place
And pretreatment, ground leak paths are excluded, or blocked to this kind of channel, Anti-seeping technology；It is settable to prevent soil from sliding
Block native facility；Excessively mound is caused to be lost to prevent rainy season from meeting water, settable pumping equipment；
7. the raw-soil covers: the raw-soil is covered in stony desertification place earth's surface；To prevent wind fugitive dust, with gauze or film overburden soil table
And it is covered with stone and prevents wind；
8. applying water: carrying out artificial or natural precipitation to earthing and apply water；
The nutrient of the ground mulching layer as obtained by above all steps is less, fertility is weaker, can play the role of water storage water conservation；
9. curing: the soil layer of above-mentioned covering is placed naturally, allow moisture and soil texture it is fully penetrated, effect and deform, formation
The soil layer of stable structure；
10. extensive use of chemical fertilizer: further carrying out cultivation on the basis of Artificial Soil curing and utilize, need to be improved to topsoil, including to surface layer
Cultivation soil layer is ploughed, is loose and apply fertilizer.
The present invention has following advantages and good effect:
1. the reset condition and natural conditions of material is utilized in the present invention as far as possible, artificial reconstructed link is few, at low cost；
2. coal base solid waste can be eliminated on a large scale, thoroughly administer gangue and stack problem on a large scale, releases safety and environmental pollution is hidden
Suffer from；
3. realizing the thorough ecological management in Rocky Desertification Region, greenery patches green hill can be restored, second ploughing is further realized and reclaim and agricultural kind
It plants, increases economic benefit and even play the role of shaking off poverty and setting out on the road to prosperity；
4. can be combined with other organic wastes, to be further driven to the improvement of other wastes；
5. ecological circulation economy can be formed in an area.
Detailed description of the invention
Fig. 1 is stony desertification earth's surface part earthing structure；
Fig. 2 is artificial gradation mixing soil material and its structure；
Fig. 3 is a wide range of earthing result example cross-section of stony desertification earth's surface；
In figure:
1-ground；
2-coarse grading layers [coarse grain gangue+flyash]；
3-middle gradation layers [chews spoil+(flyash+desulfurized gypsum)]；
4-fine grading layers [particulate gangue+(flyash+desulfurized gypsum)]；
5-desulfurized gypsums；
6-particulate gangues；
7-chews spoils；
8-coarse grain (containing bulk) gangue；
9-original blocks of stones；
10-flyash；
11-other rocks or the pellet of the levigate formation of organic waste；
12-original place tables；
13-coarse grading soil layers；
14-middle gradation soil layers；
15-fine grading soil layers；
The original huge stone in 16-ground；
17-earth-retaining facilities；
18-drainage holes；
19-cut charge for remittance ditch.
Specific embodiment
It is described in detail with reference to the accompanying drawings and examples:
One, environmental quality:
Somewhere is coal base, stores up a large amount of gangues for a long time and urgently disposes, meanwhile, Nei Youduojia power plant of area output flyash
And desulfurized gypsum；Through examining, ground gangue, flyash and the desulfurized gypsum are without harmful substances such as heavy metals；Meanwhile the ground is deposited
It in severe stony desertification region, and is mountain topography, earth's surface has a large amount of exposed stones, is badly in need of carrying out Rocky Desertification Control and carries out agricultural
Production, carries out the pilot of this technology.
Two, as follows using this method in conjunction with the ground environmental quality:
1, implementation steps are 1.
Stony desertification earth's surface purposes is assessed, determines candidate improvement place；Improvement side can play water reservation after wishing earth's surface disposition,
Topsoil can plant ecological grass to play the role of ecological slope protection；Determine that coating uses three layers of graded soil after assessment design
Layer designs as shown in Figure 1, from top to bottom are as follows:
Ground 1, coarse grading layer [coarse grain gangue+flyash] 2, middle gradation layer [chews spoil+(flyash+desulfurized gypsum)]
3, fine grading layer [particulate gangue+(flyash+desulfurized gypsum)] 4；
The average grain diameter of gradation soil layer is incremented by, surface layer according to property improvement collocation material particular diameter.
2, for selected spoil stockyard, implementation steps are 2.
According to the particle diameter distribution actual conditions of field observation phase spoil, and consider the future of agriculture plantation purposes in candidate place, it will
Spoil screening is three groups, i.e. particulate group (being set to diameter < 2mm), middle grain group (range is set to 2mm < diameter < 5mm), remaining diameter
> 5mm's is all coarse grain group (including block stone or rubble)；Since spoil is stacked by long-term, many places are not in detrition state, therefore not
The spoil of implementation steps 3. is broken；At the same time, carry out step 6. in parallel, by on-site land survey, do not find that there are cracks on ground
Etc. leak paths, without carry out field ground leak stopping processing.
3, chemical analysis is carried out to local flyash, gangue and desulfurized gypsum, does not find that there are the nocuousness such as heavy metal
Substance, without being pre-processed, 5., by puddling manufacturing artificial gradation composite soil, Fig. 2 show artificial grade compounding to implementation steps
Close soil material and its structural schematic diagram；
It include: desulfurized gypsum 5, particulate gangue 6, chews spoil 7, coarse grain (containing bulk) gangue, original block of stone 9, fine coal
Ash 10, other rocks or the pellet 11 of the levigate formation of organic waste；
1st soil layer is not mixed in advance at sorting scene, but 2. coarse grain group gangue that step sorts out directly is transported to mesh
The direct heap paving of earth's surface is marked, while spilling 20% flyash；
2nd soil layer in the broken scene of sorting directly mixture, according to spoil slightly in grain group: particulate group: flyash=5:2:3 quality
The dry-mixed configuration of ratio；
3rd soil layer is topsoil, which will be used for kind of a careless slope protection, determines that partial size matches referring to the quality of loam, spoil particulate group
As major ingredient, mass ratio is 50%, and using flyash as fine grained group, quality accounting 30%, desulfurized gypsum is auxiliary material, and quality accounts for
Than 20% in addition, organic waste quality accounting presses 10%, if it is sufficiently mixed by special mixing device in the dry state.
4, carry out step 7., Fig. 3 is a wide range of earthing result example cross-section of earth's surface, since surface slope is larger, earthing is thick
Degree is higher, earth-retaining facility 17 is provided at earthing slope foot, since slope is longer, using original stone walls 16 as intermediate earth-retaining
Facility, larger rainfall causes soil flowing to be slided with soil layer in order to prevent, is arranged in slope foot bottom (including earth-retaining facility bottom)
Extra water is drawn remittance and drained into intercepting ditch by drainage hole 18.
5, carry out step 8., since local rainfall is abundant, water is applied using natural precipitation.
6, carry out step 9., however give user and carry out step and 10. extensive use of chemical fertilizer and use.
Claims (1)
1. a kind of wastes such as extensive treatment and use gangue and the method for administering stony desertification, it is characterised in that:
1. determining candidate improvement place: assessing the stony desertification earth's surface purposes of quasi- improvement, to the soil texture (partial size composition)
And quantity, the form of overlying soil propose demand；
2. gangue sorting: to the gangue of stacking according to particle size sorting, by spoil particulate group, middle grain group and thick
Grain group (including block stone or rubble) is therefrom separated, and each standby soil building is used；Grain group division can according to actual needs or
Experience accumulation is determined, can be with therein one or more groups of；
3. spoil is broken: when particulate group in existing gangue or middle grain group accounting or absolute quantity deficiency soil building accounting require or use
When amount demand, coarse grain group gangue is crushed beading group or middle grain group；
4. pellet pre-processes: according to assay as a result, by nocuousness such as heavy metals in spoil, flyash, desulfurized gypsum pellet
Substance is pre-processed；
5. by puddling manufacturing artificial gradation composite soil；It is known as " raw-soil " by the composite soil that the above link obtains；Comprehensively consider
The intended applications of artificial graded soil determine the quality of Artificial Soil, that is, determine spoil, flyash, desulfurized gypsum and organic waste
Materials composition, partial size composition, then by puddling manufacturing artificial gradation composite soil；
6. stony desertification earth's surface pre-processes: determining candidate improvement place first, then carried out for the place " leakage detection is filled a vacancy " and pre-
Disposition excludes ground leak paths, or is blocked to this kind of channel, Anti-seeping technology；It is settable to block soil to prevent soil from sliding
Facility；Excessively mound is caused to be lost to prevent rainy season from meeting water, settable pumping equipment；
7. the raw-soil covers: the raw-soil is covered in stony desertification place earth's surface；To prevent wind fugitive dust, with gauze or film overburden soil table
And it is covered with stone and prevents wind；
8. applying water: carrying out artificial or natural precipitation to earthing and apply water；
The nutrient of the ground mulching layer as obtained by above all steps is less, fertility is weaker, but can play the role of water storage water conservation；
9. curing: the soil layer of above-mentioned covering is placed naturally, allow moisture and soil texture it is fully penetrated, effect and deform, formation
The soil layer of stable structure；
10. extensive use of chemical fertilizer: further carrying out cultivation on the basis of Artificial Soil curing and utilize, need to be improved to topsoil, including to surface layer
Cultivation soil layer is ploughed, is loose and apply fertilizer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810734578.8A CN108990458B (en) | 2018-07-06 | 2018-07-06 | Method for large-scale disposal and utilization of waste such as coal gangue and treatment of stony desertification |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810734578.8A CN108990458B (en) | 2018-07-06 | 2018-07-06 | Method for large-scale disposal and utilization of waste such as coal gangue and treatment of stony desertification |
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| CN108990458A true CN108990458A (en) | 2018-12-14 |
| CN108990458B CN108990458B (en) | 2021-08-03 |
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ID=64599256
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111386955A (en) * | 2020-04-27 | 2020-07-10 | 宁夏大学 | Water-retention salt-suppression yield-increase method for northern arid area land |
| CN114190130A (en) * | 2021-12-15 | 2022-03-18 | 中国科学院武汉岩土力学研究所 | Artificial soil for treating saline-alkali soil and use method thereof |
| CN116195399A (en) * | 2023-03-06 | 2023-06-02 | 成都环美园林生态股份有限公司 | Method for treating stony desertification of land |
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| CN102002935A (en) * | 2010-12-16 | 2011-04-06 | 西安科技大学 | Method for utilizing mine coal gangues to control and fix sands |
| CN104429216A (en) * | 2014-12-17 | 2015-03-25 | 安徽理工大学 | Filling and reclamation technology for coal gangues without being covered by surface soil |
| RU2636945C1 (en) * | 2017-04-20 | 2017-11-29 | федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский горный университет" | Method for biological soils reclamation |
| CN107466512A (en) * | 2017-07-27 | 2017-12-15 | 内蒙古正唐环保产业有限公司 | Using the structure and method in solid waste comprehensive regulation salt-soda soil |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002935A (en) * | 2010-12-16 | 2011-04-06 | 西安科技大学 | Method for utilizing mine coal gangues to control and fix sands |
| CN104429216A (en) * | 2014-12-17 | 2015-03-25 | 安徽理工大学 | Filling and reclamation technology for coal gangues without being covered by surface soil |
| RU2636945C1 (en) * | 2017-04-20 | 2017-11-29 | федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский горный университет" | Method for biological soils reclamation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111386955A (en) * | 2020-04-27 | 2020-07-10 | 宁夏大学 | Water-retention salt-suppression yield-increase method for northern arid area land |
| CN114190130A (en) * | 2021-12-15 | 2022-03-18 | 中国科学院武汉岩土力学研究所 | Artificial soil for treating saline-alkali soil and use method thereof |
| CN116195399A (en) * | 2023-03-06 | 2023-06-02 | 成都环美园林生态股份有限公司 | Method for treating stony desertification of land |
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