A comprehensive treatment process for gangue hills
A technology for comprehensive management and gangue hills, applied in infrastructure engineering, agricultural machinery and tools, construction, etc., can solve the problems of wasting resources and high costs, and achieve the effects of reducing transportation costs, preventing soil erosion, and increasing plant survival time
Active Publication Date: 2022-04-12
ANHUI NORMAL UNIV
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Although good results can be obtained, it is a waste of resources to cover a 60cm thick soil layer, and the transportation cost is also a big expense, the cost is too high
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[0034] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
[0035] Wherein, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, rather than physical drawings, and should not be construed as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings will be omitted, Enlargement or reduction does not represent the size of the actual product; for those skilled in the art, it is understandable that certain known structures and their descriptions in the drawings may be omitted.
[0036] In the drawings of the embodiments of the present invention, the same or similar symbols correspond to the same or similar components; , "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional ...
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The present invention relates to the field of environmental protection, in particular to a process for comprehensive treatment of gangue hills. The first step is to repair the slope surface, trimming the coal gangue hills with relatively large slopes, and reducing the slope of the coal gangue hills to a suitable planting slope; the second step is to grout the waste hills. Soil and grouting soil are divided into upper, middle and lower layers. The lowest layer is a mixture layer of dilute mud and coal gangue with a high water content, the middle layer is a mixture layer of mud, straw, plant ash and coal gangue, and the uppermost layer is a thin layer of natural topsoil. In the third step of planting, the seeds of plants with strong anti-pollution ability, dry and acid resistance, and strong growth ability are selected for spraying and planting, and then covered with anti-erosion nets after sowing; in the fourth step, post-maintenance, the slope of the restoration area Spray water and fertilize to ensure a stable source of nutrients for the vegetation and the restoration of the soil. The comprehensive treatment process of the invention reduces the amount of soil used, reduces the transportation cost, improves the water holding capacity, reduces pollution and improves the soil fertility of the coal gangue hill.
Description
technical field [0001] The invention relates to the field of environmental protection, in particular to a process for comprehensive treatment of gangue hills. Background technique [0002] Coal gangue is one of the solid wastes with the largest emissions in my country. Coal gangue will be produced during the mining of coal resources, such as well construction, mine reconstruction and expansion, and coal washing. In 2018, coal output was about 3.5 billion tons, and the amount of coal mine discharge It accounts for about 10%-25% of coal mining, and the discharge of coal gangue will still increase year by year. Due to the failure to find a reasonable utilization method for a long time, a large amount of coal gangue has caused great harm. [0003] Its harm is first manifested in the occupation of land resources. At present, the cumulative accumulation of coal gangue over the years in the country is about 4.5 billion tons, forming nearly 2,600 coal gangue hills, occupying about 1...
Claims
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IPC IPC(8): E02D17/20A01B79/02
CPCE02D17/20A01B79/02
Inventor 余健房莉方凤满林跃胜张平究苗雨青王健周睿谈心怡王光浩唐鸿谭舒泽曹雨王鑫鑫
Owner ANHUI NORMAL UNIV