CN102924052A - Attapulgite shale flyash sintering thermal-insulation brick - Google Patents

Attapulgite shale flyash sintering thermal-insulation brick Download PDF

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Publication number
CN102924052A
CN102924052A CN2012104750277A CN201210475027A CN102924052A CN 102924052 A CN102924052 A CN 102924052A CN 2012104750277 A CN2012104750277 A CN 2012104750277A CN 201210475027 A CN201210475027 A CN 201210475027A CN 102924052 A CN102924052 A CN 102924052A
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China
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attapulgite
brick
powder
shale
coal ash
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CN2012104750277A
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Chinese (zh)
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CN102924052B (en
Inventor
许庆华
李学东
李文娟
周皓
许盛英
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盱眙县东强新型建材厂
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/60Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes

Abstract

The invention discloses an attapulgite shale flyash sintering thermal-insulation brick. The technical scheme has key points that ingredients of the attapulgite shale flyash sintering thermal-insulation brick consist of high-viscosity attapulgite clay powder, attapulgite clay tailing powder, shale, flyash, pyroclastic rock mixture, bentonite tailing powder, diatomaceous earth tailing powder and straw powder. The ingredients of the attapulgite shale flyash sintering thermal-insulation brick are stirred uniformly and then are conveyed into a two-stage vacuum brick making machine so as to form a semi-finished product through blanking after vacuum extrusion forming, and the semi-finished product is dried naturally and then are conveyed to a tunnel kiln to be sintered to form a finished product of the attapulgite shale flyash sintering thermal-insulation brick. The attapulgite shale flyash sintering thermal-insulation brick has the characteristics that strength is good, and the brick is thermal-insulation, energy-saving and sound-insulation, fireproofing and flame-retardant; the ingredients adopt a large amount of various wastes, thereby not only being beneficial for improving a resource utilization ratio and turning wastes into wealth, but also reducing occupied land, protecting and purifying the environment and saving energy sources; and the attapulgite shale flyash sintering thermal-insulation brick is suitable for thermal-insulation construction of a wall body.

Description

Attapulgite shale powder coal ash sintering heat-reserving brick
Technical field
The present invention relates to building material field, be specifically related to a kind of Attapulgite shale powder coal ash sintering heat-reserving brick.
Background technology
Novel wall material mainly refers to the material of construction take non-clay resources such as sandstone, shale, industrial solid waste residue, the remaining soil of building as the starting material mechanization production; have protection soil, protection of the environment, save energy, utilize refuse, gain in strength and the characteristic such as economic and practical; shale brick is compared with clay solid brick; sharpest edges are that its production does not damage the arable land and energy consumption is lower, meet national technical development policy.
Shale is to be pushed in earth movement and the rock that forms by clay, have laminated or laminar bedding, impact easy splinter with hard thing, shale does not have viscosity, and plasticity-and water-permeable are all very poor, block shale need to be pulverized and just can be processed into shale building block after very thin, otherwise dried shale green bricks crackle is many, and can produce explosion in sintering process, fraction defective is higher, has increased production cost.
Mineral Resources in China 80% is intergrowth mineral, and a large amount of valuable resources retain among the 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, even violation operation, make Tailings Dam have great potential safety hazard, and people's property and the life security of surrounding area caused serious threat.
Attapulgite clay often contains the mineral such as montmorillonite, kaolinite, hydromica, sepiolite, quartz, opal and carbonate except containing attapulgite.
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, calculate by the output of producing 150000 tons per year, the volcanoclastic rock that produces 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.
Flyash is to receive the thin ash of catching the flue gas behind coal combustion, flyash also is the main solid waste that the coal-burning power plant discharges, be one of larger industrial residue of the current discharge capacity of China, along with the development of power industry, the flyash quantity discharged of coal-burning power plant increases year by year.A large amount of flyash does not add processing, will produce airborne dust, atmosphere pollution; Can cause the river to silt up if enter water system, toxic chemical substance wherein also can work the mischief to human body and biology.
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 the prior art, a kind of Attapulgite shale powder coal ash sintering heat-reserving brick is provided.
The batching of Attapulgite shale powder coal ash sintering heat-reserving brick is comprised of the sticking attapulgite clay powder of height, attapulgite clay mine tailing, shale, flyash, volcanoclastic rock mixture, wilkinite mine tailing, diatomite mine tailing and straw powder.
The production method of Attapulgite shale powder coal ash sintering heat-reserving brick: be transported in the Double-stage vacuum brick making machine after the batching of Attapulgite shale powder coal ash sintering heat-reserving brick stirred, cutting base behind extrusion under vacuum is the work in-process of Attapulgite shale powder coal ash sintering heat-reserving brick, is transported to the finished product that tunnel kiln sintering becomes Attapulgite shale powder coal ash sintering heat-reserving brick after naturally drying.
Attapulgite clay be a kind of layer of chain-like structure contain Shuifu County's zeopan clay mineral, the attapulgite clay soil property is fine and smooth, and water-absorbent is strong, tool viscosity and plasticity-when wet, be conducive to the bonding between the raw material, can improve intensity and the porosity of Attapulgite shale powder coal ash sintering heat-reserving brick.
High sticking attapulgite clay powder refers to get 28.0g attapulgite clay powder sample, add in the suspension cup of homogenizer, add again 372g water, the suspension cup is placed on the homogenizer, under 11000 rev/mins rotating speed, stirred 20 minutes, to pour in the beaker of 250ml through the high-speed stirring sample suspension again the viscosity of using NDJ-1 type rotational viscosimeter to test its suspension, tested viscosity value 〉=2200 into MPasThe attapulgite clay powder be high sticking attapulgite clay powder, the height that the present invention selects glues attapulgite clay powder particles fineness≤0.074 millimeter.
Attapulgite clay can mix in recovery process a certain amount of rubble and earth, can't sieve, and abandons as a kind of mine tailing, causes a large amount of wastings of resources, and the present invention selects the attapulgite clay mine tailing after the pulverizing, particle fineness≤0.105 millimeter.
Shale is a kind of sedimentogeneous rock, and complicated component, but the joint that all has thin laminated or thin slice stratiform mainly are the rocks that is 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 powder after the pulverizing, particle fineness≤0.25 millimeter.
The flyash main component is silicon-dioxide, aluminium sesquioxide, ferric oxide, calcium oxide and unburnt carbon, do not fire charcoal and be loose porous form more, can increase the porosity of Attapulgite shale powder coal ash sintering heat-reserving brick and reduce energy consumption, the present invention selects the flyash after the pulverizing, 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 mainly are the lava of premature coagulation on the volcano, the rock formation that passage is burst when volcanic eruption on every side.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 powder coal ash sintering heat-reserving brick, the present invention selects the volcanoclastic rock mixture after the pulverizing, particle fineness≤1.05 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 relatively poor, major part is abandoned in the mine tailing district, and the present invention selects the wilkinite mine tailing after the pulverizing, particle fineness≤0.15 millimeter.
Diatomite is fine and smooth, loose, light weight, porous, specific surface area is large, and the 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, and 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 the pulverizing, particle fineness≤0.25 millimeter.
Stalk is the general name of ripe farm crop cauline leaf (fringe) part, is often referred to wheat, paddy rice, corn, potato class, oil plant, cotton, sugarcane and other farm crop remainder behind the results seed.It is in order to increase the porosity of Attapulgite shale powder coal ash sintering heat-reserving brick that the present invention adopts straw powder, Attapulgite shale powder coal ash sintering heat-reserving brick is in roasting process, straw burning in the insulating brick is ashes, form a large amount of micropores, the present invention selects the straw powder after the pulverizing, particle fineness≤1.0 millimeter.
The present invention is achieved by following technical proposals:
1, the batching of Attapulgite shale powder coal ash sintering heat-reserving brick is comprised of following component by weight percentage: high sticking attapulgite clay powder 2~15%, attapulgite clay mine tailing 5~25%, shale powder 10~40%, flyash 5~20%, volcanoclastic rock mixture 2~15%, wilkinite mine tailing 2~10%, diatomite mine tailing 2~10%, straw powder 2~10% and water 5~35%;
The production method of described Attapulgite shale powder coal ash sintering heat-reserving brick: ⑴ adds the batching of Attapulgite shale powder coal ash sintering heat-reserving brick in the two shaft pugmill mixer that has moved and stirs, be transported to after stirring in the Double-stage vacuum brick making machine, cutting base behind extrusion under vacuum is the work in-process of Attapulgite shale powder coal ash sintering heat-reserving brick; ⑵ send into work in-process to dry and carry out nature in the room and dry, and is transported to the tunnel roasting in kilns behind half-finished water ratio≤15%; ⑶ be divided into three phases in the roasting process: the fs maturing temperature is controlled at 30~300 ℃, and roasting time is controlled at 2~8 hours; The subordinate phase maturing temperature is controlled at 300~800 ℃, and roasting time is controlled at 2~15 hours; The phase III maturing temperature is controlled at 800~1150 ℃, and roasting time is controlled at 2~10 hours; ⑷ naturally cooling behind the sintering is packaged as the finished product of Attapulgite shale powder coal ash sintering heat-reserving brick;
Described half-finished water ratio per-cent is weight ratio.
Be divided into three phases in the Attapulgite shale powder coal ash sintering heat-reserving brick roasting process, be conducive to slowly improve maturing temperature, prevent that Attapulgite shale powder coal ash sintering heat-reserving brick from producing explosion, guarantees the quality of product.
Attapulgite shale powder coal ash sintering heat-reserving brick has that intensity is good, the characteristics of heat preservation energy-saving, sound-insulating and heat-insulating and fire protection flame retarding, and quality meets the standard-required of " GB 26538-2011 sintering heat-reserving brick and insulation blocks ".
The various wastes of a large amount of employings not only are conducive to improve resource utilization in the batching of Attapulgite shale powder coal ash sintering heat-reserving brick, turn 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.
Attapulgite shale powder coal ash sintering heat-reserving brick is applicable to the wall thermal insulating construction
Embodiment
The invention will be further described below in conjunction with embodiment:
1, the batching of Attapulgite shale powder coal ash sintering heat-reserving brick is comprised of following component by weight percentage: high sticking attapulgite clay powder 4%, attapulgite clay mine tailing 12%, shale powder 30%, flyash 7%, volcanoclastic rock mixture 6%, wilkinite mine tailing 6%, diatomite mine tailing 5%, straw powder 4% and water 26%;
The production method of described Attapulgite shale powder coal ash sintering heat-reserving brick: ⑴ adds the batching of Attapulgite shale powder coal ash sintering heat-reserving brick in the two shaft pugmill mixer that has moved and stirs, be transported to after stirring in the Double-stage vacuum brick making machine, cutting base behind extrusion under vacuum is the work in-process of Attapulgite shale powder coal ash sintering heat-reserving brick; ⑵ send into work in-process to dry and carry out nature in the room and dry, and is transported to the tunnel roasting in kilns behind half-finished water ratio≤15%; ⑶ be divided into three phases in the roasting process: the fs maturing temperature is controlled at 30~300 ℃, and roasting time is controlled at 4 hours; The subordinate phase maturing temperature is controlled at 300~800 ℃, and roasting time is controlled at 5 hours; The phase III maturing temperature is controlled at 800~1050 ℃, and roasting time is controlled at 3 hours; ⑷ naturally cooling behind the sintering is packaged as the finished product of Attapulgite shale powder coal ash sintering heat-reserving brick.

Claims (1)

1. Attapulgite shale powder coal ash sintering heat-reserving brick, it is characterized in that, the batching of Attapulgite shale powder coal ash sintering heat-reserving brick is comprised of following component by weight percentage: high sticking attapulgite clay powder 2~15%, attapulgite clay mine tailing 5~25%, shale powder 10~40%, flyash 5~20%, volcanoclastic rock mixture 2~15%, wilkinite mine tailing 2~10%, diatomite mine tailing 2~10%, straw powder 2~10% and water 5~35%;
The production method of described Attapulgite shale powder coal ash sintering heat-reserving brick: ⑴ adds the batching of Attapulgite shale powder coal ash sintering heat-reserving brick in the two shaft pugmill mixer that has moved and stirs, be transported to after stirring in the Double-stage vacuum brick making machine, cutting base behind extrusion under vacuum is the work in-process of Attapulgite shale powder coal ash sintering heat-reserving brick; ⑵ send into work in-process to dry and carry out nature in the room and dry, and is transported to the tunnel roasting in kilns behind half-finished water ratio≤15%; ⑶ be divided into three phases in the roasting process: the fs maturing temperature is controlled at 30~300 ℃, and roasting time is controlled at 2~8 hours; The subordinate phase maturing temperature is controlled at 300~800 ℃, and roasting time is controlled at 2~15 hours; The phase III maturing temperature is controlled at 800~1150 ℃, and roasting time is controlled at 2~10 hours; ⑷ naturally cooling behind the sintering is packaged as the finished product of Attapulgite shale powder coal ash sintering heat-reserving brick;
Described half-finished water ratio per-cent is weight ratio;
The sticking attapulgite clay powder of described height refers to get 28.0g attapulgite clay powder sample, add in the suspension cup of homogenizer, add again 372g water, the suspension cup is placed on the homogenizer, under 11000 rev/mins rotating speed, stirred 20 minutes, to pour in the beaker of 250ml through the high-speed stirring sample suspension again the viscosity of using NDJ-1 type rotational viscosimeter to test its suspension, tested viscosity value 〉=2200 into MPasThe attapulgite clay powder be high sticking attapulgite clay powder.
CN2012104750277A 2012-11-22 2012-11-22 Attapulgite shale flyash sintering thermal-insulation brick CN102924052B (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104291783A (en) * 2014-10-10 2015-01-21 张秀丽 High-strength building heat-preservation brick and preparation method thereof
CN104529394A (en) * 2014-12-08 2015-04-22 王之永 Method for preparing floor tile by using straw
CN106587929A (en) * 2016-12-29 2017-04-26 柳州市圣垒贸易有限公司 Preparation method for shale brick
CN106673616A (en) * 2016-12-29 2017-05-17 柳州市圣垒贸易有限公司 Grey brick preparation method
CN106747290A (en) * 2016-12-29 2017-05-31 柳州市圣垒贸易有限公司 A kind of preparation method of environmentally friendly shale brick
CN106747334A (en) * 2016-12-29 2017-05-31 柳州市圣垒贸易有限公司 A kind of preparation method of environmentally friendly blue bricks
CN109422525A (en) * 2017-08-23 2019-03-05 滁州市南谯生辉新型建材有限公司 A kind of sintering shale Self-thermal-insulation hollow brick and its preparation process

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009013013A (en) * 2007-07-04 2009-01-22 Araki Yogyo Kk Porous brick and its production method
CN102515836A (en) * 2011-11-10 2012-06-27 许庆华 Gravel-shaped attapulgite coal ash ceramic grain
CN102515833A (en) * 2011-11-10 2012-06-27 许庆华 Cylindrical attapulgite fly ash ceramsites

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009013013A (en) * 2007-07-04 2009-01-22 Araki Yogyo Kk Porous brick and its production method
CN102515836A (en) * 2011-11-10 2012-06-27 许庆华 Gravel-shaped attapulgite coal ash ceramic grain
CN102515833A (en) * 2011-11-10 2012-06-27 许庆华 Cylindrical attapulgite fly ash ceramsites

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104291783A (en) * 2014-10-10 2015-01-21 张秀丽 High-strength building heat-preservation brick and preparation method thereof
CN104529394A (en) * 2014-12-08 2015-04-22 王之永 Method for preparing floor tile by using straw
CN106587929A (en) * 2016-12-29 2017-04-26 柳州市圣垒贸易有限公司 Preparation method for shale brick
CN106673616A (en) * 2016-12-29 2017-05-17 柳州市圣垒贸易有限公司 Grey brick preparation method
CN106747290A (en) * 2016-12-29 2017-05-31 柳州市圣垒贸易有限公司 A kind of preparation method of environmentally friendly shale brick
CN106747334A (en) * 2016-12-29 2017-05-31 柳州市圣垒贸易有限公司 A kind of preparation method of environmentally friendly blue bricks
CN109422525A (en) * 2017-08-23 2019-03-05 滁州市南谯生辉新型建材有限公司 A kind of sintering shale Self-thermal-insulation hollow brick and its preparation process

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