CN109265141A - A kind of light thermal-insulation haydite, preparation method and its application - Google Patents

A kind of light thermal-insulation haydite, preparation method and its application Download PDF

Info

Publication number
CN109265141A
CN109265141A CN201811257567.1A CN201811257567A CN109265141A CN 109265141 A CN109265141 A CN 109265141A CN 201811257567 A CN201811257567 A CN 201811257567A CN 109265141 A CN109265141 A CN 109265141A
Authority
CN
China
Prior art keywords
parts
light thermal
insulation
dedusting ash
gangue
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811257567.1A
Other languages
Chinese (zh)
Inventor
常杰善
杨宝
王川行
李伟雄
王光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Datong Datong Environmental Protection Technology Co Ltd
Original Assignee
Guangdong Datong Datong Environmental Protection Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Datong Datong Environmental Protection Technology Co Ltd filed Critical Guangdong Datong Datong Environmental Protection Technology Co Ltd
Priority to CN201811257567.1A priority Critical patent/CN109265141A/en
Publication of CN109265141A publication Critical patent/CN109265141A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/132—Waste materials; Refuse; Residues
    • C04B33/138—Waste materials; Refuse; Residues from metallurgical processes, e.g. slag, furnace dust, galvanic waste
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/1305—Organic additives
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/132—Waste materials; Refuse; Residues
    • C04B33/1324—Recycled material, e.g. tile dust, stone waste, spent refractory material
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/132—Waste materials; Refuse; Residues
    • C04B33/135—Combustion residues, e.g. fly ash, incineration waste
    • C04B33/1352—Fuel ashes, e.g. fly ash
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/77—Density
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The present invention provides a kind of light thermal-insulation haydite, preparation method and its applications, light thermal-insulation haydite is based on parts by weight, raw material includes following components: 500~1000 parts of teeming furnace dedusting ash, 50~100 parts of gangue, 0~100 part of flyash, 50~100 parts of bentonite, 0~100 part and 0~100 part of coal dust of kaolin；The teeming furnace dedusting ash includes 2.5~10wt% of coal dust, SiO268~72wt%, CaO 7.5~10.5wt% and Fe2O310~15.8wt%；The flyash includes Fe2O30.5~2.3wt%, Al2O330~35wt% and SiO242~47wt%.The light thermal-insulation haydite is using teeming furnace dedusting ash as raw material, then adulterates gangue and bentonite, and light thermal-insulation haydite is made, and takes full advantage of teeming furnace dedusting ash, and have excellent thermal insulation property.

Description

A kind of light thermal-insulation haydite, preparation method and its application
Technical field
The invention belongs to thermal insulation material technical field more particularly to a kind of light thermal-insulation haydite, preparation method and its answer With.
Background technique
Haydite is generally used to replace the rubble and cobble in concrete, referred to as lightweight aggregate or light-weight aggregate.Traditional haydite and Pottery sand be it is manufactured through sintering using clay as raw material, need largely to exploit high-quality clay, shale etc., destroy arable land and from Right environment, has aggravated environmental pressure significantly, violates the principle of sustainable development.
Teeming furnace dedusting ash is the life that fusion process (middle day furnace, medium-frequency induction furnace, electric arc furnaces, refining furnace etc.) generates Production property flue dust, the dust then collected through deduster, the dust collected through deduster, nearly million tons of annual output, these ashes It needs a huge place to stack, such as mismanagement or insufficient utilization, not only wastes resource, also will cause serious Pollution.Handle industrial residue well, protecting environment is the needs for building harmony between man and nature society, can be made with casting dedusting ash A variety of new materials and product are produced, there is positive effect in terms of the valuable natural first resource of substitution and comprehensive utilization of waste materials.
Summary of the invention
In view of this, this is light the purpose of the present invention is to provide a kind of light thermal-insulation haydite, preparation method and its application Vacuum haydite makes full use of waste material, and has excellent mechanical property and thermal insulation property.
The present invention provides a kind of light thermal-insulation haydites, and based on parts by weight, raw material includes following components:
500~1000 parts of teeming furnace dedusting ash, 50~100 parts of gangue, 0~100 part of flyash, bentonite 25~ 100 parts, 0~100 part and 0~100 part of coal dust of kaolin；
The teeming furnace dedusting ash includes 2.5~10wt% of coal dust, SiO268~72wt%, CaO 7.5~ 10.5wt% and Fe2O310~15.8wt%；
The flyash includes Fe2O30.5~2.3wt%, Al2O330~35wt% and SiO242~47wt%.
Preferably, the partial size of the flyash is 10~50 μm；
The partial size of the gangue is 40~100 μm.
Preferably, the raw material includes the teeming furnace dedusting ash of 1000 parts of 100~200 mesh of granularity, 100 parts of Ca base swellings Soil and 100 parts 40~100 μm of granularity of coal gangue powder；
Or the teeming furnace dedusting ash of 1000 parts of 100~200 mesh of granularity, 100 parts of Ca base bentonites, 50 parts of partial sizes 10~50 μm flyash, 50 parts of kaolin, 100 parts 40~100 μm of granularity of gangue and 50 parts of coal dusts；
Or 1000 parts of 200 mesh of granularity teeming furnace dedusting ash below, 100 parts of Na base bentonites and 100 parts of granularities 40~ 100 μm of coal gangue powder；
Or teeming furnace dedusting ash, 100 parts 10~50 μm of partial size of the flyash, 50 parts of 500 parts of 100~200 mesh of granularity Ca base bentonite, 25 parts of kaolin and 50 parts 40~100 μm of granularity of gangue；
Or teeming furnace dedusting ash, 100 parts 10~50 μm of partial size of the flyash, 25 parts of 500 parts of 100~200 mesh of granularity Na base bentonite, 25 parts of kaolin and 50 parts 40~100 μm of granularity of gangue.
Preferably, the bentonite is selected from one of sodium bentonite, calcium-base bentonite and organobentonite or a variety of.
Preferably, including 50~100 parts of flyash.
Preferably, including 50~100 parts of coal dust.
The present invention provides a kind of preparation methods of light thermal-insulation haydite described in above-mentioned technical proposal, comprising the following steps:
By 500~1000 parts of teeming furnace dedusting ash, 50~100 parts of gangue, 0~100 part of flyash, bentonite 50~ 100 parts, 0~100 part and 0~100 part of coal dust mixing of kaolin obtains mixed powder；
The mixed powder is granulated, the pellet of 3~10mm of partial size is obtained, then conserves drying, obtains dry pellet；
Dry pellet is roasted into 30~40min at 1050 DEG C~1150 DEG C, obtains light thermal-insulation haydite.
Preferably, the dry temperature of the maintenance is 100~160 DEG C, the time is 12~for 24 hours.
The present invention provides a kind of insulation blocks, as including light thermal-insulation haydite or above-mentioned technology described in above-mentioned technical proposal The raw material of the light thermal-insulation haydite of the preparation of preparation method described in scheme is made.
The present invention provides a kind of light thermal-insulation haydites, and based on parts by weight, raw material includes following components: teeming furnace removes 500~1000 parts of dust, 50~100 parts of gangue, 0~100 part of flyash, 50~100 parts of bentonite, 0~100 part of kaolin With 0~100 part of coal dust；The teeming furnace dedusting ash includes 2.5~10wt% of coal dust, SiO268~72wt%, CaO 7.5 ~10.5wt% and Fe2O310~15.8wt%；The flyash includes Fe2O30.5~2.3wt%, Al2O330~ 35wt% and SiO242~47wt%.The light thermal-insulation haydite is using teeming furnace dedusting ash as raw material, then adulterates gangue and swollen Profit soil, is made light thermal-insulation haydite, takes full advantage of teeming furnace dedusting ash, and have excellent thermal insulation property.Experimental result Show: the water absorption rate of light thermal-insulation haydite is 6.29~7.28%；Density is 795~842kg/m3；Compression strength be 8.53~ 9.63MPa；Thermal conductivity is 0.085~0.12W/ (mK).
Specific embodiment
The present invention provides a kind of light thermal-insulation haydites, and based on parts by weight, raw material includes following components:
500~1000 parts of teeming furnace dedusting ash, 50~100 parts of gangue, 0~100 part of flyash, bentonite 25~ 100 parts, 0~100 part and 0~100 part of coal dust of kaolin；
The teeming furnace dedusting ash includes 2.5~10wt% of coal dust, SiO268~72wt%, CaO 7.5~ 10.5wt% and Fe2O310~15.8wt%；
The flyash includes Fe2O30.5~2.3wt%, Al2O330~35wt% and SiO242~47wt%.
The light thermal-insulation haydite is using teeming furnace dedusting ash as raw material, then adulterates gangue and bentonite, in roasting process In, in teeming furnace dedusting ash and Fe therein2O3Under fluxing action, with the roasting of volatile matter in coal dust and gangue, haydite Biggish volume change occurs, inside will generate a large amount of stomata, and light thermal-insulation haydite obtained is made to have excellent heat insulating ability Can, it is also fully utilized by teeming furnace dedusting ash, the innoxious and recycling of teeming furnace dedusting ash is realized, is conducive to save It can emission reduction and protection environment.
The raw material for preparing of light thermal-insulation haydite provided by the invention includes 500~1000 parts of teeming furnace dedusting ash.It is described The granularity of teeming furnace dedusting ash is preferably below 100~200 mesh.In the present invention, the teeming furnace dedusting ash includes coal Powder 2.5~10wt%, SiO268~72wt%, CaO 7.5~10.5wt% and Fe2O310~15.8wt%；It is also preferable to include K2O 2.5~3.5wt%, TiO21.2~1.8wt%, MnO20.3~0.5wt%, ZnO 0.03~0.05wt% and CuO 0.05~0.07wt%.Fe in teeming furnace dedusting ash2O3Content is higher, while also containing a certain amount of coal dust in dedusting ash, Fe2O3Play the role of fluxing agent, foaming agent in the preparation roasting of light thermal-insulation haydite, coal dust can play combustion-supporting when roasting Effect, Fe2O3Gas can be generated at high temperature with coal dust, make to generate stomata inside haydite；Fe2O3It may also function as certain help Molten effect, reduces sintering temperature, makes haydite be easy to roast, increase the viscosity of liquid phase, make the burning of haydite in relatively low temperature It is more preferable at degree.
The raw material for preparing of light thermal-insulation haydite provided by the invention includes 50~100 parts of gangue.The gangue is to wash Coal works is needed in the coal and rock washing cash, being discharged in the picking cash in coal production, half coal road and stone drifting, block-like gangue The powder that its partial size is 40~100 μm is made after broken, milling, screening.The gangue includes SiO251~53%； Al2O331~33%；Fe2O33.7~3.9%；CaO 2.30~2.35% and MgO 2.40~2.42%；It is being embodied In example, the concrete composition of the gangue are as follows: SiO252%；Al2O332%；Fe2O33.8%；CaO 2.32%；MgO 2.41%；TiO20.90%；K2O+Na2O 1.45% and other microcomponents.
The raw material for preparing of light thermal-insulation haydite provided by the invention includes 25~100 parts of bentonite.The bentonite is preferred Selected from one of Na base bentonite, Ca base bentonite and organobentonite or a variety of.
The raw material for preparing of light thermal-insulation haydite provided by the invention includes 0~100 part of flyash, preferably 10~100 parts, More preferably 50~100 parts.The flyash includes Fe2O30.5~2.3wt%, Al2O330~35wt% and SiO242~ 47wt%；It is also preferable to include 5.7~6.1wt% of CaO, CeO20.09~0.15wt%, K2O 0.8~1.0wt%, MgO 0.5 ~0.65wt%, Na2O 0.4~0.5wt%, TiO21~2wt% and ZrO20.1~0.13wt%.The flyash is combustion The level-one ash or second-level ash, level-one, second class powered coal ash that coal-fired plant generates use 45 μm of screen over-sizes (%) for fineness index, it is specified that one Grade ash is not more than 12%, and second-level ash is not more than 20%.In the present invention, the partial size of the flyash is preferably 10~75 μm.
The raw material for preparing of light thermal-insulation haydite provided by the invention includes 0~100 part of kaolin, preferably 10~100 parts, More preferably 50~100 parts.The kaolin improves the plasticity of green body in granulation process, while guaranteeing after green body drying The intensity of green body during the sintering process.The kaolin is preferably used through 700~800 DEG C of calcined metakaolins.
The raw material for preparing of light thermal-insulation haydite provided by the invention includes 0~100 part of coal dust, preferably 10~100 parts, more Preferably 50~100 parts.The coal dust can play combustion-supporting effect when roasting, and can produce after volatile substances therein Raw a large amount of stomata.
In the specific embodiment of the invention, the raw material for preparing of the light thermal-insulation haydite includes 1000 parts of granularities 100~200 Purpose teeming furnace dedusting ash, 100 parts of Ca base bentonites and 100 parts 40~100 μm of granularity of coal gangue powder；
Or the teeming furnace dedusting ash of 1000 parts of 100~200 mesh of granularity, 100 parts of Ca base bentonites, 50 parts of partial sizes 10~50 μm flyash, 50 parts of kaolin, 100 parts 40~100 μm of granularity of gangue and 50 parts of coal dusts；
Or 1000 parts of 200 mesh of granularity teeming furnace dedusting ash below, 100 parts of Na base bentonites and 100 parts of granularities 40~ 100 μm of coal gangue powder；
Or teeming furnace dedusting ash, 100 parts 10~50 μm of partial size of the flyash, 50 parts of 500 parts of 100~200 mesh of granularity Ca base bentonite, 25 parts of kaolin and 50 parts 40~100 μm of granularity of gangue；
Or teeming furnace dedusting ash, 100 parts 10~50 μm of partial size of the flyash, 25 parts of 500 parts of 100~200 mesh of granularity Na base bentonite, 25 parts of kaolin and 50 parts 40~100 μm of granularity of gangue.
The present invention provides a kind of preparation methods of light thermal-insulation haydite described in above-mentioned technical proposal, comprising the following steps:
By 500~1000 parts of teeming furnace dedusting ash, 50~100 parts of gangue, 0~100 part of flyash, bentonite 50~ 100 parts, 0~100 part and 0~100 part of coal dust mixing of kaolin obtains mixed powder；
The mixed powder is granulated, the pellet of 3~8mm of partial size is obtained, then conserves drying, obtains dry pellet；
Dry pellet is roasted into 30~40min at 1050 DEG C~1150 DEG C, obtains light thermal-insulation haydite.
In the present invention, 500~1000 parts of the teeming furnace dedusting ash, 0~100 part of gangue, flyash 0~100 Part, 50~100 parts of bentonite, 0~100 part and 0~100 part of coal dust of kaolin preferably in stirrer for mixing；The mixing Time is preferably 5~10min.
The present invention is preferably granulated in pan-type pelletizer；When granulation, pan-type pelletizer revolving speed is controlled in 30~40r/ min.In the present invention, the dry temperature of the maintenance is preferably 100~160 DEG C, and the time is preferably 12~for 24 hours.
The present invention provides a kind of insulation blocks, as including light thermal-insulation haydite or above-mentioned technology described in above-mentioned technical proposal The raw material of the light thermal-insulation haydite of the preparation of preparation method described in scheme is made.
According to the teeming furnace dedusting ash baked light-weight heat-preserving ceramsite that the technology of the present invention produces, all technical reaches People's Republic of China (PRC) GB/T17431.1-2010 " light-weight aggregate and its test method part 1: light-weight aggregate " standard requirements；
The index request of 1 light-weight aggregate of table:
Project Index
Partial size 3~8mm
Bulk density 700~900kg/m3
Cylindrical compress strength 8~10MPa
Water absorption rate ≤ 10%
In order to further illustrate the present invention, below with reference to embodiment to a kind of light thermal-insulation haydite provided by the invention, its Preparation method and applications are described in detail, but they cannot be interpreted as limiting the scope of the present invention.Below The constituent content of teeming furnace dedusting ash used in the examples is as shown in table 2:
The constituent content of 2 teeming furnace dedusting ash of table
The constituent content of the flyash of use is as shown in table 3:
The constituent content of 3 flyash of table
Ingredient SiO2 Al2O3 K2O Na2O CaO TiO2 MgO Fe2O3 ZrO2 CeO2
Content/% 44.373 32.639 0.901 0.461 5.890 1.446 0.584 5.087 0.119 0.106
The gangue used in following embodiment includes SiO252%；Al2O332%；Fe2O33.8%；CaO 2.32%；MgO 2.41%；TiO20.90%；K2O+Na2O 1.45% and other microcomponents.
Embodiment 1
(1) mixing is prepared:
By the teeming furnace dedusting ash of 1000 parts of 100~200 mesh of granularity, 100 parts of Ca base bentonites and 100 parts of granularities 40~ 100 μm of coal gangue powder, which is sequentially placed into blender, stirs 6min；
(2) it is granulated and conserves:
To mixed granulation for powders in the pan-type pelletizer that revolving speed is 30r/min, the material that partial size is 5~8mm is obtained Then ball conserves 12h in 120 DEG C of insulating box；
(3) it is sintered:
It is roasted using rotary kiln, by 1125 DEG C of sintering 30min, obtains light thermal-insulation haydite.
Embodiment 2
(1) mixing is prepared:
By the teeming furnace dedusting ash of 1000 parts of 100~200 mesh of granularity, 100 parts of Ca base bentonites, 50 parts of partial sizes 10~50 μm flyash, 50 parts of kaolin, 100 parts 40~100 μm of granularity of gangue and 50 parts of coal dusts be sequentially placed into blender and stir Mix 6min；
(2) it is granulated and conserves:
To mixed granulation for powders in the pan-type pelletizer that revolving speed is 30r/min, the material that partial size is 5-8mm is obtained Then ball conserves 12h in 120 DEG C of insulating box；
(3) it is sintered:
It is roasted using rotary kiln, by 1125 DEG C of sintering 30min, obtains light thermal-insulation haydite.
Embodiment 3
(1) mixing is prepared:
By 1000 parts of 200 mesh of granularity teeming furnace dedusting ash below, 100 parts of Na base bentonites and 100 parts of granularities 40~ 100 μm of coal gangue powder, which is sequentially placed into blender, stirs 10min；
(2) it is granulated and conserves:
To mixed granulation for powders in the pan-type pelletizer that revolving speed is 35r/min, the pellet that partial size is 5mm is obtained, Then it is conserved for 24 hours in 120 DEG C of insulating box；
(3) it is sintered:
It is roasted using rotary kiln, by 1100 DEG C of sintering 30min, obtains light thermal-insulation haydite.
Embodiment 4
(1) mixing is prepared:
By the teeming furnace dedusting ash of 500 parts of 100~200 mesh of granularity, 100 parts 10~50 μm of partial size of flyash, 50 parts Ca base bentonite, 25 parts of kaolin and 50 parts 40~100 μm of granularity of gangue are sequentially placed into blender and stir 5min；
(2) it is granulated and conserves:
To mixed granulation for powders in the pan-type pelletizer that revolving speed is 30r/min, the material that partial size is 5-8mm is obtained Then ball conserves 12h in 120 DEG C of insulating box；
(3) it is sintered:
It is roasted using rotary kiln, by 1150 DEG C of sintering 30min, obtains light thermal-insulation haydite.
Embodiment 5
(1) mixing is prepared:
By the teeming furnace dedusting ash of 500 parts of 100~200 mesh of granularity, 100 parts 10~20 μm of partial size of flyash, 25 parts Na base bentonite, 25 parts of kaolin and 50 parts 40~100 μm of granularity of gangue are sequentially placed into blender and stir 5min；
(2) it is granulated and conserves:
To mixed granulation for powders in the pan-type pelletizer that revolving speed is 30r/min, the material that partial size is 3~5mm is obtained Then ball conserves for 24 hours in 120 DEG C of insulating box；
(3) it is sintered:
It is roasted using rotary kiln, by 1125 DEG C of sintering 30min, obtains light thermal-insulation haydite.
The performance test results of the light thermal-insulation haydite of 4 Examples 1 to 5 of table preparation
As seen from the above embodiment, the present invention provides a kind of light thermal-insulation haydites, based on parts by weight, raw material include with Lower component: 500~1000 parts of teeming furnace dedusting ash, 50~100 parts of gangue, 0~100 part of flyash, bentonite 50~100 Part, 0~100 part and 0~100 part of coal dust of kaolin；The teeming furnace dedusting ash includes 2.5~10wt% of coal dust, SiO2 68 7.5~10.5wt% of~72wt%, CaO and Fe2O310~15.8wt%；The flyash includes Fe2O30.5~ 2.3wt%, Al2O330~35wt% and SiO242~47wt%.The light thermal-insulation haydite is original with teeming furnace dedusting ash Material, then gangue and bentonite are adulterated, light thermal-insulation haydite is made, takes full advantage of teeming furnace dedusting ash, and have excellent Thermal insulation property.The results showed that the water absorption rate of light thermal-insulation haydite is 6.29~7.28%；Density is 795~842kg/ m3；Compression strength is 8.53~9.63MPa；Thermal conductivity is 0.085~0.12W/ (mK).
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims (9)

1. a kind of light thermal-insulation haydite, based on parts by weight, raw material includes following components:
500~1000 parts of teeming furnace dedusting ash, 50~100 parts of gangue, 0~100 part of flyash, 50~100 parts of bentonite, 0~100 part and 0~100 part of coal dust of kaolin；
The teeming furnace dedusting ash includes 2.5~10wt% of coal dust, SiO268~72wt%, CaO7.5~10.5wt% and Fe2O310~15.8wt%；
The flyash includes Fe2O30.5~2.3wt%, Al2O330~35wt% and SiO242~47wt%.
2. light thermal-insulation haydite according to claim 1, which is characterized in that the partial size of the flyash is 10~75 μm；
The partial size of the gangue is 40~100 μm.
3. light thermal-insulation haydite according to claim 1, which is characterized in that the raw material include 1000 parts of granularities 100~ The teeming furnace dedusting ash of 200 mesh, 100 parts of Ca base bentonites and 100 parts 40~100 μm of granularity of coal gangue powder；
Or the teeming furnace dedusting ash of 1000 parts of 100~200 mesh of granularity, 100 parts of Ca base bentonites, 50 parts 10~50 μm of partial size Flyash, 50 parts of kaolin, 100 parts 40~100 μm of granularity of gangue and 50 parts of coal dusts；
Or 1000 parts of 200 mesh of granularity teeming furnace dedusting ash below, 100 parts of Na base bentonites and 100 parts 40~100 μm of granularity Coal gangue powder；
Or the teeming furnace dedusting ash of 500 parts of 100~200 mesh of granularity, 100 parts 10~50 μm of partial size of flyash, 50 parts of Ca bases Bentonite, 25 parts of kaolin and 50 parts 40~100 μm of granularity of gangue；
Or the teeming furnace dedusting ash of 500 parts of 100~200 mesh of granularity, 100 parts 10~50 μm of partial size of flyash, 25 parts of Na bases Bentonite, 25 parts of kaolin and 50 parts 40~100 μm of granularity of gangue.
4. light thermal-insulation haydite according to claim 1, which is characterized in that the bentonite is selected from sodium bentonite, calcium One of base bentonite and organobentonite are a variety of.
5. light thermal-insulation haydite according to claim 1, which is characterized in that including 50~100 parts of flyash.
6. light thermal-insulation haydite according to claim 1, which is characterized in that including 50~100 parts of coal dust.
7. a kind of preparation method of any one of claim 1~6 light thermal-insulation haydite, comprising the following steps:
By 500~1000 parts of teeming furnace dedusting ash, 50~100 parts of gangue, 0~100 part of flyash, bentonite 50~100 Part, 0~100 part and 0~100 part of coal dust mixing of kaolin obtains mixed powder；
The mixed powder is granulated, the pellet of 3~10mm of partial size is obtained, then conserves drying, obtains dry pellet；
Dry pellet is roasted into 30~40min at 1050 DEG C~1150 DEG C, obtains light thermal-insulation haydite.
8. preparation method according to claim 7, which is characterized in that the dry temperature of the maintenance is 100~160 DEG C, Time be 12~for 24 hours.
9. a kind of insulation blocks, any by including any one of claim 1~6 light thermal-insulation haydite or claim 7~8 The raw material of the light thermal-insulation haydite of the item preparation method preparation is made.
CN201811257567.1A 2018-10-26 2018-10-26 A kind of light thermal-insulation haydite, preparation method and its application Pending CN109265141A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811257567.1A CN109265141A (en) 2018-10-26 2018-10-26 A kind of light thermal-insulation haydite, preparation method and its application

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811257567.1A CN109265141A (en) 2018-10-26 2018-10-26 A kind of light thermal-insulation haydite, preparation method and its application

Publications (1)

Publication Number Publication Date
CN109265141A true CN109265141A (en) 2019-01-25

Family

ID=65193689

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811257567.1A Pending CN109265141A (en) 2018-10-26 2018-10-26 A kind of light thermal-insulation haydite, preparation method and its application

Country Status (1)

Country Link
CN (1) CN109265141A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110723976A (en) * 2019-12-04 2020-01-24 襄阳仁创铸造材料有限公司 Fly ash burnt-out ceramsite and energy-saving treatment method for fly ash
CN111085166A (en) * 2019-12-19 2020-05-01 佛山科学技术学院 Dephosphorization adsorption material and preparation method and application thereof
CN112441773A (en) * 2020-12-01 2021-03-05 唐山华纤科技有限公司 High-strength heat-preservation baking-free brick prepared from blast furnace cloth bag fly ash and preparation method thereof
CN113307514A (en) * 2021-05-29 2021-08-27 柳晶（溧阳）环保科技有限公司 Cementing material prepared from casting waste ash
CN113337269A (en) * 2021-06-18 2021-09-03 山西大学 Energy-saving efficiency-improving preparation method of solid waste base sintering proppant
CN114014637A (en) * 2021-11-24 2022-02-08 宁波中淳高科股份有限公司 Ceramsite and preparation method thereof
CN114940624A (en) * 2022-04-25 2022-08-26 徐州市正峰锌业有限公司 Method for preparing heat-insulating foam material by utilizing blast furnace ash as resource
CN115959922A (en) * 2022-12-16 2023-04-14 内蒙古工业大学 Coal-based solid waste thermal insulation aggregate and preparation method and application thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3737371A1 (en) * 1987-11-04 1989-05-18 Werner Block Method for processing filter dusts, dredged muds (harbour mud) and similar waste materials for final storage
CN103553448A (en) * 2013-09-27 2014-02-05 北京仁创科技集团有限公司 Ceramsite water permeable brick and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3737371A1 (en) * 1987-11-04 1989-05-18 Werner Block Method for processing filter dusts, dredged muds (harbour mud) and similar waste materials for final storage
CN103553448A (en) * 2013-09-27 2014-02-05 北京仁创科技集团有限公司 Ceramsite water permeable brick and preparation method thereof

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
南京化工学院编: "《陶瓷工学 硅酸盐工学》", 31 July 1961 *
张深根编著: "《重金属固废处理及资源化技术》", 31 December 2016, 冶金工业出版社 *
竹涛: "《矿山固体废物处理与处置工程》", 30 June 2016, 冶金工业出版社 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110723976A (en) * 2019-12-04 2020-01-24 襄阳仁创铸造材料有限公司 Fly ash burnt-out ceramsite and energy-saving treatment method for fly ash
CN111085166A (en) * 2019-12-19 2020-05-01 佛山科学技术学院 Dephosphorization adsorption material and preparation method and application thereof
CN111085166B (en) * 2019-12-19 2022-11-22 佛山科学技术学院 Dephosphorization adsorption material and preparation method and application thereof
CN112441773A (en) * 2020-12-01 2021-03-05 唐山华纤科技有限公司 High-strength heat-preservation baking-free brick prepared from blast furnace cloth bag fly ash and preparation method thereof
CN113307514A (en) * 2021-05-29 2021-08-27 柳晶（溧阳）环保科技有限公司 Cementing material prepared from casting waste ash
CN113337269A (en) * 2021-06-18 2021-09-03 山西大学 Energy-saving efficiency-improving preparation method of solid waste base sintering proppant
CN114014637A (en) * 2021-11-24 2022-02-08 宁波中淳高科股份有限公司 Ceramsite and preparation method thereof
CN114940624A (en) * 2022-04-25 2022-08-26 徐州市正峰锌业有限公司 Method for preparing heat-insulating foam material by utilizing blast furnace ash as resource
CN115959922A (en) * 2022-12-16 2023-04-14 内蒙古工业大学 Coal-based solid waste thermal insulation aggregate and preparation method and application thereof

Similar Documents

Publication Publication Date Title
CN109265141A (en) A kind of light thermal-insulation haydite, preparation method and its application
CN105152609B (en) Building brick prepared with the flying dust after consumer waste incineration or slag and preparation method thereof
CN105084867B (en) It is a kind of using flyash as antibacterial ceramic products of primary raw material and preparation method thereof
CN103172347B (en) Sintered porous light-weight insulating brick produced from ceramic waste mud and manufacturing method thereof
CN101386480B (en) Method for producing portland cement clinker using domestic waste incineration residue
CN101386481B (en) Method for producing portland cement clinker using domestic waste flying ash
CN101905967B (en) Fly ash baked brick prepared by washed incineration fly ash of house refuse and preparation method thereof
CN109721333A (en) A kind of pottery brick and preparation method of garbage flying ash preparation
CN109851323A (en) A kind of haydite and preparation method thereof using the preparation of oily sludge Thermal desorption residue
CN101406777A (en) Porous porcelain granule filter material based on glass and sludge, and preparation method thereof
CN108840710A (en) Utilize the method for lithium tailing and steel slag tailing production foamed ceramic building thermal insulation material
CN103880472A (en) Sludge porous material and preparation method thereof
CN102643109A (en) Method for preparing ceramsite by using waste incineration fly ash and waste glass
CN103864404B (en) A kind of haydite utilizing quartz sand mine tailing and mud to make and preparation method thereof
CN114751766A (en) Light ceramsite fired by solid waste and method thereof
CN104529518B (en) A kind of lead-zinc ore tailings-red mud-fly ash base foamed ceramics and preparation method thereof
CN110818439A (en) Method for preparing building ceramsite by using building garbage
CN105837163B (en) A kind of preparation method of chambersite tailing Ceramic Tiles
CN103288421A (en) Sintered ceramic particle and preparation method thereof
CN105299657A (en) Co-processing method for red mud and household garbage incineration fly ash
CN105731998A (en) Light ceramsite prepared from oil shale semi-coke and preparation method thereof
CN105503058A (en) Thermal insulation concrete building block
CN105174909A (en) Ceramic product using fly ash as main raw material and preparation method thereof
CN108275895A (en) A kind of method that the slugging of suspension roasting coal gas prepares cementitious material
CN104609842A (en) Method for preparing mullite-phase multiphase material by utilizing high-alumina fly ash

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20190125