CN106149668B - A kind of method fixed the sand using weathered coal - Google Patents
A kind of method fixed the sand using weathered coal Download PDFInfo
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- CN106149668B CN106149668B CN201510216910.8A CN201510216910A CN106149668B CN 106149668 B CN106149668 B CN 106149668B CN 201510216910 A CN201510216910 A CN 201510216910A CN 106149668 B CN106149668 B CN 106149668B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
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Abstract
The present invention relates to a kind of methods fixed the sand using weathered coal.Its method is to pulverize and sieve spare by weathered coal and then uniformly mixed weathered coal powder, adhesion agent and sand, finally sprays a certain amount of water, and after natural air drying, blend can form a kind of bonding course with high intensity saline-alkali tolerant.The present invention takes full advantage of the weathered coal discarded in coal mining, have many advantages, such as that free from environmental pollution, resisting wind erosion is good, bearing capacity is strong, can promote that plant growth, low production cost, preparation method are simple, are suitble to fix the sand on a large scale, in Desertification Control field with huge application value.
Description
Technical field
Present invention relates particularly to a kind of methods fixed the sand using weathered coal, belong to restoration of the ecosystem and desert treatment field.
Background technology
Desertification just annoyings the world today as extremely important environment and social concern, threaten the mankind existence and
Development.At present, the area of global desertification has reached a quarter of the gross area, and the desert area newly increased every year about 6
Ten thousand square kilometres.In recent years, it is flat by original 13.7 ten thousand square kilometres to increase to 17.6 ten thousand for the desertification land area in China
Fang Gongli, and have 15.8 ten thousand square kilometres of potential desertification land.Desertification causes being provided using soil for China's large area
Source disruption of ecological balance, population is threatened by desertification more than 300,000,000, seriously affected China villages and small towns, traffic, water conservancy, industrial site and
The safety in national defence base causes huge loss to China's economy, and exacerbates the poverty degree of the desertification regions people.
At present, farmland quality decline is the one of the major reasons for causing desertification.China's arid and half-dried dry cropland
Area accounts for 52.5%, throughout northern 16 provinces, cities and regions.Under growing population pressure, NORTHWEST CHINA, North of North China and east
Northwestern Part is arid, semiarid and sub- moistening arid biogeographic zone, and there is soil depletion, low output, poverty life of peasants and wind erosions to desertify
Problem.In face of such immense arid area, existing sand fixation material can only fix sandy soil.In desert industrial crops kind
Growing area carries out the sandy soil surface texture caused by turning over operation and destroys, the service life of sand-consolidating agent shortened, so as to affect sand
Unconcerned economic sustainable development, also slows down transformation of the sandy soil to soil.
Thus, to inhibit the increasingly savage desertification impetus, a kind of new mode of fixing the sand, i.e., the side that ecology is fixed the sand should be used
Method.The ultimate aim that ecology is fixed the sand is improvement sandy soil, it is made gradually to have soil characteristic and self-repairing capability, so as to from basic
The upper Desertification for solving soil.Nearly hundred billion tons of China's coal-mine rich reserves, wherein weathering coal reserves are mainly distributed on interior
The ground such as illiteracy, Xinjiang, Shanxi, Henan, Jiangxi.The selection standard of coal mine is weighed with fuel value and calorific value, and the combustion of weathered coal
Burning value is low, therefore, frequently as Coal Solid Wastes in coal mining.But can be plant containing abundant humus in weathered coal
Growth provide needed for nutrient, fixed the sand using weathered coal, not only promote the growth of plant, but also sandy soil can be accelerated to soil
The transformation of earth.It not only solves pollution of the mining area weathered coal to environment, and to improve sources of sandstorms and the serious poor and barren land of soil
The ecological environment in area has positive effect.
Invention content
For current sand fixation material, there are main problems, and the object of the present invention is to provide a kind of sides fixed the sand using weathered coal
Method solves the problems such as existing sand fixation material sand fixing strength is not high, weatherability is poor, fundamentally solution sandy soil are not barren, and
The sand fixation material has the characteristics that good Saline alkali tolerance and water-retaining property, and production cost is low, and implementing process is simple.
To achieve these goals, the technology path that the present invention uses is as follows.
A kind of method fixed the sand using weathered coal, it is characterised in that following steps：
Weathered coal is pulverized and sieved spare, based on the number of quality shared by each raw material, this method is by 70 parts of sand, weathering
10~50 parts of coal dust end, 0.1~5 part of bonding agent, 20 parts of water, by evenly mixing after, by its uniform bedding in sandy land surface, wait to mix
One layer of weathered coal composite sand consolidation material is formed after closing object natural air drying.
The weathered coal powder diameter is 20~200 mesh；
The bonding agent is vinyl acetate esters rubber powder, poly- (vinylacetate-ethylene) class rubber powder, polyvinyl alcohol glue
It is one or more in powder.
The invention has the advantages that and advantageous effect：
(1) weathered coal derives from a wealth of sources, is cheap, and ecology is greatly reduced and fixes the sand cost.
(2) this method is simple, easily operated, and raw material is derived from Inner Mongol desert periphery and discards coal mine, greatly reduce transport with
Engineering cost improves feasibility and operability.
(3) weathered coal contains a large amount of humus, conducive to the growth of desert plant and microorganism, promotes sandy soil to soil
Transformation.It is fixed the sand using weathered coal, will be a kind of fundamentally solution Desertification effective way.
Description of the drawings
Fig. 1 is the freeze thawing resistance stability of weathered coal composite sand consolidation material and adhesion agent control group in the embodiment of the present invention 1
(being represented with the variation of sand fixing strength)
Fig. 2 is the heat aging property of weathered coal composite sand consolidation material and adhesion agent control group in the embodiment of the present invention 1
(being represented with the variation of sand fixing strength)
Specific embodiment
For a better understanding of the present invention, the following examples are the further explanations to the present invention, it is necessary to be herein means
Go out, following embodiment is served only for that the invention will be further described, it is impossible to limiting the scope of the invention is interpreted as,
The person skilled in the art in the field makes the present invention according to the invention described above content some nonessential modifications and adaptations, still belongs to
In the scope of the present invention.
Embodiment 1
Weathered coal is pulverized and sieved it is spare, based on the number of quality shared by each raw material, take 70 parts of sand, grain size be 80 mesh wind
Powdered coal end 30 parts, 0.1 part of vinyl acetate esters rubber powder, 20 parts of water, by evenly mixing after, by its uniform bedding in sand ground table
Face, one layer is formed after object natural air drying to be mixed has good pressure-bearing property and the bonding course of excellent weather-proof effect.
The preparation of Sha Mo：3.5g sandy soil, 1.5g weathered coals and 0.05g bonding agents are weighed, after mixing, adds in 1g water,
It stirs evenly and prepares husky mould (a diameter of 2.0cm), 80 DEG C of dry 2h are to get husky mould.
The freeze-thaw stability of weathered coal composite sand consolidation material measures：Husky mould obtained above is put into -18 DEG C of environment
22h is freezed, then is placed in delay at room temperature by husky mould and freezes 2h, be denoted as a cycle period, measure the compression strength in its 10 periods
Situation of change.
The heat aging performance of weathered coal composite sand consolidation material measures：Husky mould obtained above is put into 60 DEG C of baking oven
For 24 hours, it is a cycle period, measures the compression strength situation of change in its 10 periods.
Fig. 1 is the freeze-thaw stability of weathered coal composite sand consolidation material and adhesion agent control group, it can be seen from the figure that with
The increase of freezing and thawing cycle, the compression strength of Sha Mo does not change substantially, shows that the composite material is steady with good freeze thawing resistance
It is qualitative, compared with the control group compared with it is found that weathered coal composite material has higher compression strength.
Fig. 2 is the thermal ageing resistant performance of weathered coal composite sand consolidation material and adhesion agent control group, it can be seen from the figure that
With the increase in heat ageing period, the compression strength of Sha Mo does not change substantially, shows that the composite material has good heat resistanceheat resistant
Aging is compared with the control group compared with it is found that weathered coal composite material has higher compression strength.
Fig. 1-2 illustrates that weathered coal composite sand consolidation material is amenable to desert Environment temperature and significantly changes, and has available
In the comprehensive performance of desert treatment.
Embodiment 2
Weathered coal is pulverized and sieved it is spare, based on the number of quality shared by each raw material, take 70 parts of sand, grain size be 80 purposes
30 parts of weathered coal powder, 0.1 part of polyvinyl alcohol rubber powder, 20 parts of water, by evenly mixing after, by its uniform bedding in sand ground table
Face, one layer is formed after object natural air drying to be mixed has good pressure-bearing property and the bonding course of excellent weather-proof effect.
Embodiment 3
Weathered coal is pulverized and sieved it is spare, based on the number of quality shared by each raw material, take 70 parts of sand, grain size be 60 purposes
30 parts of weathered coal powder, 0.2 part of polyvinyl alcohol rubber powder, 20 parts of water, by evenly mixing after, by its uniform bedding in sand ground table
Face, one layer is formed after object natural air drying to be mixed has good pressure-bearing property and the bonding course of excellent weather-proof effect.
Embodiment 4
Weathered coal is pulverized and sieved it is spare, based on the number of quality shared by each raw material, take 70 parts of sand, grain size be 80 mesh wind
Powdered coal end 40 parts, 0.2 part of vinyl acetate esters rubber powder, 20 parts of water, by evenly mixing after, by its uniform bedding in sand ground table
Face, one layer is formed after object natural air drying to be mixed has good pressure-bearing property and the bonding course of excellent weather-proof effect.
Embodiment 5
Weathered coal is pulverized and sieved it is spare, based on the number of quality shared by each raw material, take 70 parts of sand, grain size be 100 mesh
20 parts of weathered coal powder, 0.5 part of vinyl acetate esters rubber powder, 20 parts of water, by evenly mixing after, by its uniform bedding in sand ground table
Face, one layer is formed after object natural air drying to be mixed has good pressure-bearing property and the bonding course of excellent weather-proof effect.
Claims (3)
- A kind of 1. method fixed the sand using weathered coal, it is characterised in that following steps：Weathered coal is pulverized and sieved it is spare, by each original The number meter of quality shared by material, this method are by 70 parts of sand, 10~50 parts of weathered coal powder, 0.1~5 part of bonding agent, water 20 Part, by evenly mixing after, its uniform bedding is formed after sandy land surface, object natural air drying to be mixed to one layer with good pressure-bearing The bonding course of property and excellent weather-proof effect.
- 2. a kind of method fixed the sand using weathered coal according to claim 1, it is characterised in that weathered coal powder diameter is 20~200 mesh.
- 3. a kind of method fixed the sand using weathered coal according to claim 1, it is characterised in that the bonding agent is poly- It is one or more in vinyl acetate esters rubber powder, poly- (vinylacetate-ethylene) class rubber powder, polyvinyl alcohol rubber powder.
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| CN201510216910.8A CN106149668B (en) | 2015-04-24 | 2015-04-24 | A kind of method fixed the sand using weathered coal |
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| CN201510216910.8A CN106149668B (en) | 2015-04-24 | 2015-04-24 | A kind of method fixed the sand using weathered coal |
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| CN106149668A CN106149668A (en) | 2016-11-23 |
| CN106149668B true CN106149668B (en) | 2018-06-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108353563B (en) * | 2018-02-07 | 2020-10-09 | 中国科学院新疆理化技术研究所 | Method for treating desertified soil by using wastes as soil conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100384497B1 (en) * | 2000-09-22 | 2003-05-22 | 학교법인 인하학원 | Soil Reinforcing Method Using Waste Tires As a Mat |
| CN1546607A (en) * | 2003-12-01 | 2004-11-17 | 中国农业科学院土壤肥料研究所 | Nanometer scale multifunctional sand-fixing water-loss reducer production method |
| CN101280559A (en) * | 2008-04-24 | 2008-10-08 | 青海省水利水电科学研究所 | Method of sand square chemical sand fixing and growing |
| CN102561298A (en) * | 2012-01-18 | 2012-07-11 | 付从杰 | Garbage processing method based on sand covering |
| CN103410137A (en) * | 2013-08-21 | 2013-11-27 | 青海省水利水电科学研究所 | Structural type sand prevention and control technology |
-
2015
- 2015-04-24 CN CN201510216910.8A patent/CN106149668B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100384497B1 (en) * | 2000-09-22 | 2003-05-22 | 학교법인 인하학원 | Soil Reinforcing Method Using Waste Tires As a Mat |
| CN1546607A (en) * | 2003-12-01 | 2004-11-17 | 中国农业科学院土壤肥料研究所 | Nanometer scale multifunctional sand-fixing water-loss reducer production method |
| CN101280559A (en) * | 2008-04-24 | 2008-10-08 | 青海省水利水电科学研究所 | Method of sand square chemical sand fixing and growing |
| CN102561298A (en) * | 2012-01-18 | 2012-07-11 | 付从杰 | Garbage processing method based on sand covering |
| CN103410137A (en) * | 2013-08-21 | 2013-11-27 | 青海省水利水电科学研究所 | Structural type sand prevention and control technology |
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