Background technology
Mineral Resources in China 80% is intergrowth mineral, and a large amount of valuable resources retain among mine tailing, and tailings impoundment need to take a large amount of soils.A lot of Tailings Dams exceed the time limit or excess load is used, and even violation operation, make Tailings Dam have great potential safety hazard, and people's property and the life security of surrounding area caused to serious threat.
Attapulgite clay, except containing attapulgite, often contains the mineral such as montmorillonite, kaolinite, hydromica, sepiolite, quartz, opal and carbonate.
With the volcanoclastic rock that also has of attapulgite clay ore deposit symbiosis, volcanoclastic rock is mostly on the upper strata in attapulgite clay ore deposit, the volcanoclastic rock ore bed on upper strata, some attapulgite clays mining area
'sthickness is up to tens of rice, attapulgite clay is in recovery process, the volcanoclastic rock on upper strata, attapulgite clay mining area is abandoned as waste, investigate factually, the volcanoclastic rock that 1 ton of attapulgite clay of every exploitation produces has more than 30 tons, by the output of producing 150000 tons per year, calculates, the volcanoclastic rock produced is up to 4,500,000 tons, all can be utilized for many years, whole mining area is the volcanoclastic rock mixture of again piling up everywhere, causes the serious wasting of resources and financial loss.
Building waste refers to the waste that construction, unit in charge of construction or individual are built, lay or remove, produce in the repairerment process all kinds of buildingss, structures, pipe network etc.The composition of building waste has: the tr of the yellow ground be scattered in the mortar be scattered and concrete, brickbat and broken concrete, handling process, stone, piece stone, dregs, steel scrap muscle, waste iron wire, various steel scrap accessory, metal pipe line waste material, useless bamboo wood, wood chip, wood shavings, various finishing material and packing bag etc.
Summary of the invention
The objective of the invention is to overcome weak point in prior art, a kind of unburned Attapulgite volcanoclastic rock aggregate sand is provided.
Unburned Attapulgite volcanoclastic rock aggregate sand is comprised of attapulgite clay mine tailing, volcanoclastic rock mixture, building waste, opal and montmorillonite mine tailing.
The production method of unburned Attapulgite volcanoclastic rock aggregate sand: the batching of unburned Attapulgite volcanoclastic rock aggregate sand is stirred and pulverized, be packaged as the finished product of unburned Attapulgite volcanoclastic rock aggregate sand.
Attapulgite clay can mix in recovery process a certain amount of rubble and earth, as a kind of mine tailing, abandon, cause a large amount of wastings of resources, the attapulgite clay mine tailing that the present invention selects requires to screen out the earth in the attapulgite clay mine tailing, and the present invention selects the particle fineness of attapulgite clay mine tailing≤2.0 millimeters.
Volcanoclastic rock is the rock of the transitional type between magma lava and sedimentogeneous rock, wherein the composition more than 50% is comprised of the material of pyroclastic flow ejection, and these tephras are mainly the lava of premature coagulation on volcano, the rock formation that passage is burst on every side when volcanic eruption.The volcanoclastic rock mixture comprises landwaste, brilliant bits, glassiness bits, slurry bits, volcanic block, volcanic gravel and volcanic ash, volcanoclastic rock can increase the intensity of unburned Attapulgite volcanoclastic rock aggregate sand, the present invention selects the volcanoclastic rock mixture after pulverizing, particle fineness≤5.0 millimeter.
Building waste is to select yellow ground, stone and the dregs the like waste be scattered in the mortar that is scattered in construction work, concrete, brickbat, broken concrete, handling process, the building waste that the present invention selects requires to screen out the earth in building waste, and the present invention selects the particle fineness of building waste≤5.0 millimeters.
Opal and attapulgite clay symbiosis, be that attapulgite clay is difficult to a kind of hard rock of rejecting in recovery process, and as a kind of waste bulk deposition, in the attapulgite clay mining area, the present invention selects opaline particle fineness≤2.0 millimeter.
The montmorillonite mine tailing that the present invention selects is distributed in the lower floor in attapulgite clay ore deposit mostly, be difficult to carry out independent exploitation, but montmorillonite mine tailing quality is harder, be applicable to produce aggregate, and the present invention selects the particle fineness of montmorillonite mine tailing≤2.0 millimeters.
The present invention is achieved by following technical proposals:
1, the batching of unburned Attapulgite volcanoclastic rock aggregate sand is comprised of following component by weight percentage: attapulgite clay mine tailing 5~30%, volcanoclastic rock mixture 15~55%, building waste 10~30%, opal 5~25% and montmorillonite mine tailing 5~20%;
The production method of described unburned Attapulgite volcanoclastic rock aggregate sand: (1) the batching of unburned Attapulgite volcanoclastic rock aggregate sand is added in the two shaft pugmill mixer moved and stirs, in the rear input pulverizer that stirs, pulverizing is the mixture of unburned Attapulgite volcanoclastic rock aggregate sand; The particle fineness of mixture≤1.05 millimeter, be packaged as the finished product of unburned Attapulgite volcanoclastic rock aggregate sand.
Unburned Attapulgite volcanoclastic rock aggregate sand is used as material of construction, and required technical equipment is fairly simple, and processing costs is low, and for the normal concrete engineering, its quality meets related standard requirements, and Social benefit and economic benefit is preferably arranged.
In the batching of unburned Attapulgite volcanoclastic rock aggregate sand, the various wastes of a large amount of employing, not only be conducive to improve resource utilization, turns waste into wealth; can also reduce land occupation, protection and environment purification, save the energy; reduce production costs, increase economic efficiency.
Unburned Attapulgite volcanoclastic rock aggregate sand is applicable to concrete works.