CN1173473A - Coal ash thermal material products and its prodn. method - Google Patents

Coal ash thermal material products and its prodn. method Download PDF

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Publication number
CN1173473A
CN1173473A CN96115529A CN96115529A CN1173473A CN 1173473 A CN1173473 A CN 1173473A CN 96115529 A CN96115529 A CN 96115529A CN 96115529 A CN96115529 A CN 96115529A CN 1173473 A CN1173473 A CN 1173473A
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CN
China
Prior art keywords
pearl
coal ash
floats
demoulding
binding agent
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.)
Granted
Application number
CN96115529A
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Chinese (zh)
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CN1055908C (en
Inventor
孙绍奇
刘玉祥
吴德湖
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Individual
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Individual
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Publication date
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Priority to CN96115529A priority Critical patent/CN1055908C/en
Publication of CN1173473A publication Critical patent/CN1173473A/en
Application granted granted Critical
Publication of CN1055908C publication Critical patent/CN1055908C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
    • 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
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
    • C04B18/08—Flue dust, i.e. fly ash
    • C04B18/082—Cenospheres
    • 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
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/0016—Granular materials, e.g. microballoons
    • C04B20/002—Hollow or porous granular materials
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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

Abstract

An insulating material used for insulating layer of oil delivery pipeline, heating pipeline, cold storage and roof is made up of float bead (0.125-0.106 mm indiameter), phenolic resin, epoxy resin and their solidifying agents, through selection of float beads, dewatering, mixing, shaping by mould press or injection, demoulding and natural solidification. Its advantages includes light specific weight, high temp resistance, flame retarding, and high insulating, water-proof and sound absorbing natures.

Description

Coal ash thermal material products and method for making
The present invention utilizes the waste coal ash in fuel-burning power plant to float the lagging material goods that pearl is made, and it has insulation, fire prevention, waterproof, acid and alkali-resistance, protection against corrosion, sound insulation, heat insulation multiple function.
Before the present invention made, normally used lagging material mainly contained following three kinds: the one, and polyurethane rigid foam plastic, its advantage is that thermal conductivity is low, does not absorb water, good heat insulating, shortcoming are the low 150 ℃ of i.e. fusings of high temperature resistant coefficient, poor fire, do not prevent fires, the cost height, intensity is low; The 2nd, asbestos, its advantage is that resistance to elevated temperatures is good, shortcoming is the water-intake rate height, produces and use has public hazards, is unsuitable for undergroundly directly burying underground; The 3rd, perlite, its advantage is high temperature resistant, not heat conduction, shortcoming is the water-intake rate height, and goods are easily broken in the transportation installation process, and the production process power consumption is high.
The purpose of this invention is to provide a kind of good heat insulating, fire prevention, waterproof, acid and alkali-resistance, protection against corrosion, sound insulation, heat insulation, resistance to compression, intensity are big, and folding strength is big, is applicable to underground coal ash thermal material products of directly burying underground and method for making.
Main raw material of the present invention is that the floating matter that utilizes the waste flyash in fuel-burning power plant to extract with wet cleaning process is commonly called as and floats pearl, it is a kind of spheroid, hollow seamless grey small-particle, diameter is that 0.125～0.106mm (120～140 order) is fuel-burning power plant coal dust product behind 1800 ℃ of high-temp combustions in stove, has light specific gravity, floats on water, high temperature resistant 800～1200 ℃, open firing point not, good heat insulating, not heat conduction, the desirable insulated fire water-proof material that does not absorb water.
Coal ash thermal material products of the present invention floats pearl by coal ash and binding agent is formed, and its proportioning is:
It is 0.125～0.106mm (120～140 order), 70～85% (weight percents) that coal ash floats the pearl diameter, binding agent 10～30%, and binding agent adds phenolic resin curative by resol and Resins, epoxy or epoxy curing agent is made, and its proportioning is:
Resol adds Resins, epoxy or wherein a kind ofly accounts for a little 80～85%, and phenolic resin curative or epoxy curing agent account for 10～20%.
The concrete technical process of this lagging material goods method for making is:
1. coal ash floats the selection of pearl: pour fly ash in electric power plant into will keep afloat with flotation process in the water the pearl that floats and pull out, remove impurity;
2. dehydrate: that will pull out floats pearl through seasoning or Tumble Dry;
3. mix and mix: this is floated pearl drop in the stirrer, add binding agent again and stir at normal temperatures, float the compound that bead surface scribbles adhensive membrane,
4. mold pressing or extruding: coat releasing agent at die surface earlier, paraffin, organosilicon or spread plastics film drop into compound in different size and the different moulds pressurization or extrusion molding;
5. the demoulding: after the moulding, seasoning 15～20 minutes can the demoulding or is heated 80～150 ℃ of demouldings after 5～10 minutes;
6. spontaneous curing: seasoning is 24 hours after the demoulding, the finished product of these goods.
These lagging material goods its advantage compared with the prior art are: 1. high temperature resistant 500～700 ℃, open firing point is not; 2. water-intake rate 2～5%; 3. ultimate compression strength 4.85Mpa (Kg/cm 2); 4. folding strength 2.61MPa (Kg/cm 2); It also has insulation, and sound insulation is heat insulation, acid and alkali-resistance, superperformances such as protection against corrosion; Because manufacture craft, equipment are simple, but can make at site operation, once shaped, the loss that minimizing causes in transportation, installation process breakage, it can be widely used in the external thermal insulation of making oil-gas field pipeline, oil pipeline, hot duct, can directly be embedded in underground, also can make the storage tanker external thermal insulation, freezer is heat insulation, the silo bottom of the reservior, buildings underground waterproof layer, building roof water-proof thermal insulation layer etc.It is that the thermal power generation waste fully is used that raw material coal ash of the present invention floats pearl, turns waste into wealth, and reduces environmental pollution, increases environmental benefit.
Embodiment one
The oil-gas field pipeline, the once shaped of oil pipeline external thermal insulation is made
Get the coal ash of choosing and float pearl 700Kg, the resol 225Kg of binding agent, resol solid formulation 45Kg; Earlier resol is dropped into and add phenolic resin curative in the stirrer and stir and make binding agent; Coal ash is floated pearl drops in another stirrer, add binding agent again and under temperature is normal, be stirred into compound, then with spiral pump with compound form once on pipeline.
Embodiment two
The making of oil field oil depot storage tanker arc warming plate:
Get the coal ash of choosing and float pearl 750Kg, the resol 112.5Kg of binding agent, Resins, epoxy 100Kg, epoxy curing agent 37.5Kg drops into resol and Resins, epoxy in the stirrer earlier, and the adding epoxy curing agent stirs and makes binding agent; In addition coal ash being floated pearl drops in another stirrer, adding above-mentioned binding agent stirs and makes compound, then compound is dropped into and use the oil press extrusion forming in the arc mould, seasoning is 24 hours after the demoulding, make arc warming plate finished product after the curing, at last this arc warming plate is sticked on the store oil tank wall with synthetical glue.

Claims (4)

1. a coal ash thermal material products is characterized in that it floats pearl by coal ash and binding agent is formed, and its proportioning is:
Coal ash floats pearl 70～85% (weight percent)
Binding agent 10～30%
This binding agent adds phenolic resin curative or epoxy curing agent by resol and Resins, epoxy and forms its proportioning and be:
Resol adds Resins, epoxy or wherein a kind ofly accounts for 80～85%.
Phenolic resin curative or epoxy curing agent account for 10～20%.
2. lagging material goods as claimed in claim 1 is characterized in that it is 0.125～0.106mm (120～140 order) that coal ash floats the pearl diameter.
3. the method for making of lagging material goods as claimed in claim 1 is characterized in that its concrete technical process is:
(1) coal ash floats the selection of pearl: fly ash in electric power plant is poured in the water, pulled out with the pearl that floats that wet cleaning process will be kept afloat, remove impurity;
(2) dehydrate: that will pull out floats pearl through seasoning or Tumble Dry;
(3) mix to stir: this is floated pearl drop in the stirrer and add binding agent, stir at normal temperatures, make and float bead surface and scribble adhensive membrane;
(4) mold pressing or extruding: earlier coat releasing agent at die surface, paraffin or organosilicon or spread plastics film drop into pressurization or extrusion molding in the different moulds of different size with above-mentioned compound;
(5) demoulding: seasoning 15～20 minutes or heat the demoulding after 5～10 minutes after the moulding;
(6) spontaneous curing: after the demoulding spontaneous curing 24 hours this goods finished product.
4. the method for making of lagging material goods as claimed in claim 3, the temperature that it is characterized in that heating the demoulding is 80～150 ℃.
CN96115529A 1996-08-13 1996-08-13 Coal ash thermal material products and its prodn. method Expired - Fee Related CN1055908C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN96115529A CN1055908C (en) 1996-08-13 1996-08-13 Coal ash thermal material products and its prodn. method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN96115529A CN1055908C (en) 1996-08-13 1996-08-13 Coal ash thermal material products and its prodn. method

Publications (2)

Publication Number Publication Date
CN1173473A true CN1173473A (en) 1998-02-18
CN1055908C CN1055908C (en) 2000-08-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN96115529A Expired - Fee Related CN1055908C (en) 1996-08-13 1996-08-13 Coal ash thermal material products and its prodn. method

Country Status (1)

Country Link
CN (1) CN1055908C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101962277A (en) * 2010-09-16 2011-02-02 魏全新 Sound-insulating plate
CN102060470A (en) * 2010-11-12 2011-05-18 武汉纺织大学 Expanded vitrified micro-bead fireproof thermal-insulation board and preparation method thereof
CN105348565A (en) * 2015-11-30 2016-02-24 四川议中新材料股份有限公司 Modified coal ash for plastic
CN108164927A (en) * 2017-12-19 2018-06-15 常州思宇环保材料科技有限公司 A kind of preparation method of thermal material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105419242A (en) * 2015-12-31 2016-03-23 珠海云智新材料科技有限公司 Hollow floating bead doped sound-absorption epoxy resin material and preparation method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1010286B (en) * 1987-06-29 1990-11-07 余安邦 Wet selecting system for hollow glass microbead from powder coal ash
CN87106395A (en) * 1987-09-22 1988-03-16 鞍山钢铁学院 Protect nonshrink massive composite slag

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101962277A (en) * 2010-09-16 2011-02-02 魏全新 Sound-insulating plate
CN102060470A (en) * 2010-11-12 2011-05-18 武汉纺织大学 Expanded vitrified micro-bead fireproof thermal-insulation board and preparation method thereof
CN102060470B (en) * 2010-11-12 2013-04-24 武汉纺织大学 Expanded vitrified micro-bead fireproof thermal-insulation board and preparation method thereof
CN105348565A (en) * 2015-11-30 2016-02-24 四川议中新材料股份有限公司 Modified coal ash for plastic
CN105348565B (en) * 2015-11-30 2017-11-10 四川议中新材料股份有限公司 A kind of plastics modified coal
CN108164927A (en) * 2017-12-19 2018-06-15 常州思宇环保材料科技有限公司 A kind of preparation method of thermal material

Also Published As

Publication number Publication date
CN1055908C (en) 2000-08-30

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Inventor after: Sun Shaoqi

Inventor after: Liu Yuxiang

Inventor after: Wu Dehu

Inventor after: Hao Yingjia

Inventor after: Luo Haitian

Inventor before: Sun Shaoqi

Inventor before: Liu Yuxiang

Inventor before: Wu Dehu

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: SUN SHAOQI; LIU YUXIANG; WU DEHU TO: SUN SHAOQI; LIU YUXIANG; WU DEHU; HAOYINGJIA; LUO HAITIAN

C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Iron bell Qifa anti-corrosion insulation limited liability company

Assignor: Sun Shaoqi

Contract fulfillment period: In April 18, 2009, 6 years

Contract record no.: 022100030028

Denomination of invention: The utility model relates to a thermal insulation material for a coal ash source, which is directly buried in the underground

Granted publication date: 20000830

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Record date: 20021111

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Free format text: LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.4.18, 6 YEARS

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