CN102910875A - Attapulgite-shale hollow block - Google Patents

Abstract

The invention discloses an attapulgite-shale hollow block which comprises the ingredients attapulgite clay tailing, shale, coal gangue, volcaniclastic rock mixture, bentonite tailing powder, kieselguhr tailing, cement, polypropylene reticular fiber and polycarboxylic acid high-performance water reducer. The attapulgite-shale hollow block is prepared by evenly stirring the ingredients and conveying into a full-automatic block machine, pressing to obtain a semi-finished hollow block, conventionally maintaining for 28 days and packaging to obtain the finished attapulgite-shale hollow block. The attapulgite-shale hollow block has the characteristics of good strength, no cracks, heat insulation, energy conservation, sound insulation, less than or equal to 20% of water absorption and good anti-freezing performance; by using a mass of waste as ingredients, not only the resource utilization rate is improved to turn the waste into wealth, but also the land occupation is decreased to protect and purify the environment and save the energy; and the attapulgite-shale hollow block is suitable for the wall construction.

Description

The Attapulgite shale hollow building block

Technical field

The present invention relates to building material field, be specifically related to a kind of Attapulgite shale hollow building block.

Background technology

Novel wall material mainly refers to take the material of construction that the non-clay resources such as sandstone, shale, industrial solid waste residue, the remaining soil of building are the starting material mechanization production; there is protection soil, protection of the environment, save energy, utilize refuse, gain in strength and the characteristic such as economic and practical; various concrete segments are widely used in construction work; but; because the reasons such as quality product, Architectural Construction, construction technology cause concrete segment cracking phenomena ubiquity; for a long time, concrete masonry cracking, hollowing, seepage are considered to the common fault of walling work.

Shale is by clay, in earth movement, to be pushed and the rock that forms, have laminated or laminar bedding, with hard thing, impact easy splinter, shale does not have viscosity, plasticity-and water-permeable are all very poor, need to will after block shale pulverizing very carefully, just can be processed into shale building block.

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.

The volcanoclastic rock that also has with the symbiosis of attapulgite clay ore deposit, volcanoclastic rock is mostly on the upper strata in attapulgite clay ore deposit, the thickness of the volcanoclastic rock ore bed on upper strata, some attapulgite clays mining area 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, calculate, 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, cause the serious wasting of resources and financial loss.

Coal gangue is thrown aside, takies tract, and sulfide in coal gangue is overflowed or leached can atmosphere pollution, farmland and water body, and waste dump also can the spontaneous combustion presence of fire, or, in the avalanche in rainy season, silts river up and cause disaster.

China Patent Publication No.: CN102765961A, open day: on November 07th, 2012, patent name is " a kind of method of utilizing shale to prepare the aerating hollow brick ", disclose " a kind of method of utilizing shale to prepare the aerating hollow brick; carry out in accordance with the following steps: (1) presses following butt mass parts mixing raw material: granularity 1000-1500 purpose shale after pulverization process; lime, flyash; (2) 85-95% by above-mentioned steps (1) mixing raw material butt quality adds water, the 0.04-0.06% of mixing raw material butt quality adds the aluminium scrap powder, the 9-11% of lime quality adds gypsum, the 1-4% peregal of aluminium scrap opaque amount, the 0.1-0.3% trolamine of lime quality etc.; Amount of shale of the present invention is large, energy-conserving and environment-protective, alleviates shale and stores up the place problem that processing brings, and provides new raw material sources for hollow brick simultaneously ".

Above-mentioned patent weak point is " by following butt mass parts mixing raw material: granularity 1000-1500 purpose shale after pulverization process; lime; flyash ", 1000-1500 purpose particle fineness is equivalent to 0.012～0.009 millimeter, the production cost that is worked into this particle fineness is very high, can not be applicable to the actual production of building materials industry.

Summary of the invention

The objective of the invention is to overcome weak point in prior art, a kind of Attapulgite shale hollow building block is provided.

The batching of Attapulgite shale hollow building block is comprised of attapulgite clay mine tailing, shale, coal gangue, volcanoclastic rock mixture, wilkinite mine tailing, diatomite mine tailing, cement, mesh polypropylene-fibre and high performance water reducing agent of polyocarboxy acid.

The production method of Attapulgite shale hollow building block: be transported in fully-automatic building block forming machine after the batching of Attapulgite shale hollow building block is stirred, be pressed into the work in-process of holllow building block, conventional maintenance is packaged as the finished product of Attapulgite shale hollow building block after 28 days.

Attapulgite clay be a kind of layer of chain-like structure containing Shuifu County's zeopan clay mineral, attapulgite clay soil property exquisiteness, water-absorbent is strong, tool viscosity and plasticity-when wet, be conducive to the bonding between raw material, can effectively avoid Attapulgite shale hollow building block cracking, improve intensity and the porosity of Attapulgite shale hollow building block.

Attapulgite clay can mix in recovery process a certain amount of rubble and earth, can't be sieved, and as a kind of mine tailing, abandons, and causes a large amount of wastings of resources, and the present invention selects the attapulgite clay mine tailing after pulverizing, particle fineness≤0.15 millimeter.

Shale is a kind of sedimentogeneous rock, and complicated component, but the joint that all has thin laminated or thin slice stratiform are mainly the rocks formed through pressure and temperature by the clay deposition, but wherein mix chip and other chemical substances that quartz, feldspar are arranged.According to the composition of its tramp material, can be divided into: calcareous shale, irony shale, siliceous shale, carbonaceous shale, black shale, oil shale etc.; The present invention selects the shale after pulverizing, particle fineness≤5.0 millimeter.

Coal gangue is the solid waste discharged in coal mining process and coal washing process, can improve the intensity of Attapulgite shale hollow building block, and the present invention selects the carbon content of coal gangue to be not more than 10%, particle fineness≤0.15 millimeter.

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 Attapulgite shale hollow building block, the present invention selects the volcanoclastic rock mixture after pulverizing, particle fineness≤2.5 millimeter.

Wilkinite has plasticity-and agglutinating value(of coal), and the wilkinite mine tailing that the present invention selects is distributed in the lower floor in attapulgite clay ore deposit mostly, is difficult to carry out independent exploitation, quality is also poor, major part is abandoned in the mine tailing district, and the present invention selects the wilkinite mine tailing after pulverizing, particle fineness≤0.25 millimeter.

Diatomite is fine and smooth, loose, light weight, porous, specific surface area is large, and space is regular distribution, stable chemical nature, it is a kind of natural nano aperture amorphous silicon material, but diatomite is made a low multiple use, most products come from one-level soil, and two, three grades of soil are discarded in a large number, caused serious waste of resources, also polluted environment, the present invention selects the diatomite mine tailing after pulverizing, particle fineness≤0.25 millimeter.

The cement selection silicate cement.

The mesh polypropylene-fibre outward appearance is the reticulated structure that the mutual commissure of plurality of fibers monofilament forms, in the batching whipping process of Attapulgite shale hollow building block, horizontal connection between fibre single thread can through concrete self rub and friction is worked and is promoted reticulated structure fully to open, thereby playing, the polypropylene fiber filaments of realizing One's name is legion puts the effect of splitting, can effectively control the tiny crack that the factors such as concrete plastic shrinkage, drying shrinkage, temperature variation cause, prevent and suppress the formation and development in crack.

Polycarboxylate high performance water-reducing agent is formed by the unsaturated monomer that contains carboxyl and other monomer copolymerizations, make concrete at diminishing, protect collapse, serial water reducer that the aspects such as enhancing, contraction and environmental protection have premium properties.

The present invention is achieved by following technical proposals:

1, the batching of Attapulgite shale hollow building block is comprised of following component by weight percentage: attapulgite clay mine tailing 5～25%, shale 10～35%, coal gangue 5～15%, volcanoclastic rock mixture 2～15%, wilkinite mine tailing 2～10%, diatomite mine tailing 2～10%, cement 5～20%, mesh polypropylene-fibre 0.01～2%, high performance water reducing agent of polyocarboxy acid O.01～2% and water 5～35%;

The production method of described Attapulgite shale hollow building block: (1) the batching of Attapulgite shale hollow building block is added in the two shaft pugmill mixer moved and stirs, be transported to after stirring in fully-automatic building block forming machine, be pressed into the work in-process of Attapulgite shale hollow building block; (2) carry out maintenance according to the conventional maintenance process of cement products, be packaged as the finished product of Attapulgite shale hollow building block after 28 days;

The row in described Attapulgite shale hollow building block hole is divided into five classes: solid, single row of holes, double-row hole, three rounds and four rounds.

The Attapulgite shale hollow building block have intensity good, do not have crackle, heat preservation energy-saving, sound-insulating and heat-insulating, water-intake rate to be not more than 20% and the good characteristics of resistance to frost, quality meets the standard-required of " GB/T 15229 lightweight small size hollow concrete blocks ".

In the batching of Attapulgite shale hollow building block, the various wastes of a large amount of employing, not only be conducive to improve resource utilization, turns waste into wealth, and can also reduce land occupation, and protection and environment purification are saved the energy, reduce production costs, and increase economic efficiency.

The Attapulgite shale hollow building block is applicable to wall construction .

Embodiment

Below in conjunction with embodiment, the invention will be further described:

1, the batching of Attapulgite shale hollow building block is comprised of following component by weight percentage: attapulgite clay mine tailing 12%, shale 24%, coal gangue 10%, volcanoclastic rock mixture 8%, wilkinite mine tailing 5%, diatomite mine tailing 4%, cement 11%, mesh polypropylene-fibre 0.6%, high performance water reducing agent of polyocarboxy acid O.4% with water 25%;

The production method of described Attapulgite shale hollow building block: (1) the batching of Attapulgite shale hollow building block is added in the two shaft pugmill mixer moved and stirs, be transported to after stirring in fully-automatic building block forming machine, be pressed into the work in-process of Attapulgite shale hollow building block; (2) carry out maintenance according to the conventional maintenance process of cement products, be packaged as the finished product of Attapulgite shale hollow building block after 28 days;

The row in described Attapulgite shale hollow building block hole is four rounds.

Claims (1)

1. an Attapulgite shale hollow building block, it is characterized in that, the batching of Attapulgite shale hollow building block is comprised of following component by weight percentage: attapulgite clay mine tailing 5～25%, shale 10～35%, coal gangue 5～15%, volcanoclastic rock mixture 2～15%, wilkinite mine tailing 2～10%, diatomite mine tailing 2～10%, cement 5～20%, mesh polypropylene-fibre 0.01～2%, high performance water reducing agent of polyocarboxy acid O.01～2% and water 5～35%;

The production method of described Attapulgite shale hollow building block: (1) the batching of Attapulgite shale hollow building block is added in the two shaft pugmill mixer moved and stirs, be transported to after stirring in fully-automatic building block forming machine, be pressed into the work in-process of Attapulgite shale hollow building block; (2) carry out maintenance according to the conventional maintenance process of cement products, be packaged as the finished product of Attapulgite shale hollow building block after 28 days;

The row in described Attapulgite shale hollow building block hole is divided into five classes: solid, single row of holes, double-row hole, three rounds and four rounds.