DE3737046A1 - Processing and conversion of contaminated hazardous wastes into products for manufacturing building materials for underground mining - Google Patents

Processing and conversion of contaminated hazardous wastes into products for manufacturing building materials for underground mining

Info

Publication number
DE3737046A1
DE3737046A1 DE19873737046 DE3737046A DE3737046A1 DE 3737046 A1 DE3737046 A1 DE 3737046A1 DE 19873737046 DE19873737046 DE 19873737046 DE 3737046 A DE3737046 A DE 3737046A DE 3737046 A1 DE3737046 A1 DE 3737046A1
Authority
DE
Germany
Prior art keywords
contaminated
coal
underground mining
products
conversion
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.)
Withdrawn
Application number
DE19873737046
Other languages
German (de)
Inventor
Heinz Dipl Ing Hoelter
Heinrich Dipl Ing Igelbuescher
Heinrich Ing Grad Gresch
Heribert Dipl Ing Dewert
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19873737046 priority Critical patent/DE3737046A1/en
Priority to DE19883802429 priority patent/DE3802429A1/en
Publication of DE3737046A1 publication Critical patent/DE3737046A1/en
Withdrawn legal-status Critical Current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
    • C04B33/1321—Waste slurries, e.g. harbour sludge, industrial muds
    • 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
    • C04B18/02—Agglomerated materials, e.g. artificial aggregates
    • C04B18/023—Fired or melted materials
    • 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
    • C04B32/00—Artificial stone not provided for in other groups of this subclass
    • 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
    • C04B33/1325—Hazardous waste other than combustion residues
    • C04B33/1327—Hazardous waste other than combustion residues containing heavy metals
    • 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
    • C04B33/32—Burning methods
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62625—Wet mixtures
    • C04B35/6263—Wet mixtures characterised by their solids loadings, i.e. the percentage of solids
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
    • 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
    • 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

Abstract

The invention relates to processing and conversion of contaminated hazardous wastes into products for manufacturing building materials or packing material (stowing material) for underground mining, by mixing with flotation tailings and subsequent ceramisation by incineration between 450@C and 1200@C.

Description

Der durch die moderne Zivilisation induzierte Wohl­ standsmüll und damit verbunden auch die Rückstände aus der industriellen Produktion haben mengenmäßig, wert­ mäßig und von der Problematik her einen Umfang ange­ nommen, der die bisher hauptsächlich geübte Praxis der Deponie verbietet. Eine besondere Stellung nehmen dabei die kontaminierten Problemabfallstoffe ein.The well-being induced by modern civilization garbage and associated residues of industrial production have quantity, value moderate and a range of problems who have practiced the practice of Prohibits landfill. Take a special position the contaminated problematic waste.

Zur Aufarbeitung und Wandlung von kontaminierten Problemabfallstoffen in Produkte zur Herstellung von Baustoffen und/oder Versatzmaterial für den Untertage­ bergbau wird erfindungsgemäß folgender Verfahrensgang vorgeschlagen. For processing and converting contaminated Problem waste materials in products for the production of Building materials and / or backfill material for the underground Mining according to the invention is the following process suggested.  

Zum Einsatz kommen Flotationsberge, ein Abfallprodukt, die bei der Kohlegewinnung als Schlamm anfallen und auf 14%-16% Wassergehalt entwässert werden. Diese Flotationsberge haben die Eigenschaft, daß sie erhitzt zwischen 450°C und 1200°C keramisieren.Flotation mountains are used, a waste product, which are produced as sludge in coal extraction and be dewatered to 14% -16% water content. These flotation mountains have the property that ceramics heated between 450 ° C and 1200 ° C.

Diesen keramisierenden Effekt behalten die Flotations­ berge bei, selbst wenn sie mit anderen organischen oder anorganischen Materialien oder kontaminierten Problemabfallstoffen vermischt und dann erhitzt und oberhalb 450°C verbrannt werden. Zurück bleibt ein umweltneutraler Keramikrückstand, der keinerlei organische Bestandteile mehr enthält, nur die aus dem Problemabfall verbliebenen Schwermetalle, die aber wasserauslaugungsfest in der Keramik eingebunden sind. Der so anfallende keramisierte Rückstand kann aufgemahlen zur Herstellung von Bergbaumörtel oder eingemahlen als Versatzmaterial für den Untertage­ bergbau eingesetzt werden. Erfindungsgemäß müssen mindestens 20-30% Flotbergeanteile in einer Material-Abfall- oder Problemabfallstoffmischung vorhanden sein, um bei der Verbrennung größer 450°C einen alle Problemstoffe enthaltenden keramisierten Rückstand zu bekommen.The flotations retain this ceramizing effect mountains, even if they are organic with others or inorganic materials or contaminated Problem waste materials mixed and then heated and burned above 450 ° C. There remains one environmentally neutral ceramic residue that has no contains more organic ingredients, only those from the remaining heavy metals, the but integrated in the ceramic to withstand water leaching are. The resulting ceramicized residue can ground for the production of mining mortar or ground in as backfill material for the underground mining. According to the invention at least 20-30% float content in one Material waste or problem waste mixture  be present in order to burn more than 450 ° C a ceramized containing all problematic substances To get behind.

Je nach der Verbrennungstemperatur entsteht ein mehr oder weniger fester Keramikrückstand. Die bevorzugten Verbrennungstemperaturen für eine maximale Keramisierung liegen zwischen 800°C und 1150°C.Depending on the combustion temperature, there is more or less solid ceramic residue. The preferred Combustion temperatures for maximum ceramization are between 800 ° C and 1150 ° C.

Um auch flüssige und schlammartige Problemabfallstoffe aufzuarbeiten und in Baustoffe oder Versatzmaterial für den Untertagebergbau zu wandeln, wird erfindungsgemäß vorgeschlagen, wasseraufnehmende Materialien, wie Ton, Sägemehl, Kalkstein, Perlitstaub, Bims usw. einzusetzen, um die wasser- bzw. schlammhaltigen Problemabfallstoffe zu binden und sie dann mit Flotbergen zu vermischen und zu verbrennen.To also liquid and sludge-like problem waste recondition and in building materials or backfill for Changing underground mining is invented suggested water-absorbing materials, such as clay, Use sawdust, limestone, pearlite dust, pumice, etc. the problematic waste water or sludge to bind and then mix them with Flotbergen and burn.

Natürlich kann den Gemischen von Problemabfallstoffen mit Flotbergen auch ein Teil Kohle jeglicher Art (Steinkohle, Braunkohle, Abfallkohle usw.) zugemischt werden, um einen Teil des Energiebedarfes bei der Verbrennung zur Keramisierung einzusparen.Of course, the mixtures of hazardous waste with Flotberg also some coal of any kind (Hard coal, lignite, waste coal, etc.) added  to be a part of the energy requirement at the Saving combustion for ceramization.

Claims (4)

1. Aufarbeitung und Wandlung von kontaminierten Problemabfallstoffen in Produkte zur Herstellung von Baustoffen oder Versatzmaterial für den Unter­ tagebergbau dadurch gekennzeichnet, daß die konta­ minierten Problemabfallstoffe mit Flotations­ bergen, die bei der Kohlegewinnung als Schlamm mit 14%-16% Wasser anfallen, gemischt werden und oberhalb 450°C verbrannt werden, wobei ein umweltneutraler Keramikrückstand verbleibt, der keinerlei organische Bestandteile mehr enthält, sondern nur noch die aus dem Problemabfallstoff verbliebenen Schwermetalle, die aber wasseraus­ laugefest in der Keramik eingebunden sind. Dieser so anfallende keramisierte Rückstand kann aufgemahlen zur Herstellung von Bergbaumörtel, oder nicht aufgemahlen als Versatzmaterial für den Untertagebergbau eingesetzt werden. 1. Processing and conversion of contaminated problem waste materials into products for the production of building materials or backfill material for underground mining, characterized in that the contaminated problem waste materials contain flotations which are obtained as coal sludge with 14% -16% water, and are mixed are burned above 450 ° C, leaving an environmentally neutral ceramic residue that no longer contains any organic constituents, but only the heavy metals remaining from the problem waste material, but which are incorporated in the ceramic so that they are resistant to leaching. This resulting ceramized residue can be ground up for the production of mining mortar or not ground up as a backing material for underground mining. 2. Verfahren nach Anspruch 1 dadurch gekennzeichnet, daß den flüssigen oder schlammartigen kontaminierten Problemabfallstoffen wasseraufsaugende Materialien wie Ton, Sägemehl, Kalkstein, Perlitestaub, Bims, Kalk usw. zugesetzt werden, um viel Flüssigkeit zu binden und sie dann mit Flotationsbergen zu vermischen und zwecks Keramisierung zu verbrennen.2. The method according to claim 1, characterized in that the liquid or muddy contaminated Problem waste materials water absorbent materials such as clay, sawdust, limestone, perlite dust, pumice, Lime, etc., are added to make too much liquid bind and then mix them with flotation mountains and burn for ceramization. 3. Verfahren nach Anspruch 1-2 dadurch gekennzeichnet, daß den Gemischen von Flotationsbergen mit kontaminier­ ten Problemabfallstoffen auch ein Teil Kohle jeglicher Art (Steinkohle, Braunkohle, Abfallkohle usw.) zuge­ mischt werden kann, um den Brennwert der zu kerami­ sierenden Gemische zu erhöhen.3. The method according to claim 1-2, characterized in that the mixtures of flotation mountains with contaminated Part of coal from any problem waste materials Type (hard coal, lignite, waste coal, etc.) can be mixed to the calorific value of the kerami increasing mixtures. 4. Verfahren nach Anspruch 1-3 dadurch gekennzeichnet, daß zur Keramisierung solcher Problemgemische vorzugs­ weise eine Verbrennungstemperatur zwischen 800°C und 1150°C gewählt wird.4. The method according to claim 1-3, characterized in that preferred for the ceramization of such problem mixtures have a combustion temperature between 800 ° C and 1150 ° C is selected.
DE19873737046 1987-10-31 1987-10-31 Processing and conversion of contaminated hazardous wastes into products for manufacturing building materials for underground mining Withdrawn DE3737046A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19873737046 DE3737046A1 (en) 1987-10-31 1987-10-31 Processing and conversion of contaminated hazardous wastes into products for manufacturing building materials for underground mining
DE19883802429 DE3802429A1 (en) 1987-10-31 1988-01-28 Reprocessing and conversion of contaminated problem waste materials into products for the production of load-bearing building materials for underground mining

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873737046 DE3737046A1 (en) 1987-10-31 1987-10-31 Processing and conversion of contaminated hazardous wastes into products for manufacturing building materials for underground mining

Publications (1)

Publication Number Publication Date
DE3737046A1 true DE3737046A1 (en) 1989-05-11

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Application Number Title Priority Date Filing Date
DE19873737046 Withdrawn DE3737046A1 (en) 1987-10-31 1987-10-31 Processing and conversion of contaminated hazardous wastes into products for manufacturing building materials for underground mining

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0433684A2 (en) * 1989-11-22 1991-06-26 CONTENTO TRADE S.A.S. di CIOFFI ILARIA Process for the recovery of inorganic industrial waste
CN102268235A (en) * 2010-06-01 2011-12-07 由伟 Infrared absorption material prepared by using coal gangue, and preparation method thereof
CN103541506A (en) * 2013-09-23 2014-01-29 沈阳建筑大学 Special-shaped section steel rib gangue concrete column
CN103541507A (en) * 2013-09-23 2014-01-29 沈阳建筑大学 Special-shaped section steel tube gangue concrete core column
CN107352907A (en) * 2017-07-28 2017-11-17 固岩科技发展有限公司 A kind of preparation method of colliery filling slurry
CN108002727A (en) * 2017-12-04 2018-05-08 蔡贤均 A kind of building mortar and cement prefabricated product and preparation method thereof
CN109942275A (en) * 2019-04-17 2019-06-28 郑州市新郑梅久实业有限公司 A kind of ceramsite sand and its processing technology using gangue production
CN110078401A (en) * 2019-05-15 2019-08-02 中南大学 A kind of technique that gangue belt sintering prepares active mixed material
CN112759319A (en) * 2020-11-26 2021-05-07 中国矿业大学(北京) Controllable low-strength mine filling material
CN114133194A (en) * 2020-12-16 2022-03-04 淮北工业建筑设计院有限责任公司 All-coal gangue rapid-hardening early-strength concrete and preparation method thereof

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE800286C (en) * 1947-11-18 1950-10-25 Eisenwerke Akt Ges Deutsche Manufacture of mixed binders
DE810256C (en) * 1948-10-02 1951-08-06 Metallgesellschaft Ag Manufacture of building materials
DE816218C (en) * 1947-11-18 1951-10-08 Eisenwerke A G Deutsche Process for the production of sintered goods on suction sintering systems
DE820265C (en) * 1948-10-02 1951-11-08 Metallgesellschaft Ag Production of a hydraulic binder
DE849073C (en) * 1951-06-01 1952-09-11 Friedrich Cramer Process for the production of components
DE2407197B2 (en) * 1973-02-19 1975-11-06 Hitachi Shipbuilding & Engineering Co. Ltd., Osaka (Japan) Process for treating powdery or sludge-like materials containing harmful heavy metals
EP0039798A1 (en) * 1980-05-14 1981-11-18 BABCOCK-BSH AKTIENGESELLSCHAFT vormals Büttner-Schilde-Haas AG Method of firing and sintering waste washings
DD153361A1 (en) * 1980-10-01 1982-01-06 Jochen Auerbach METHOD FOR THE PRODUCTION OF LIGHT SUPPLEMENTS AND FOR THE IMPROPER EVALUATION OF ABPRODUCTS
EP0045297A1 (en) * 1980-07-17 1982-02-03 Wienerberger Baustoffindustrie Aktiengesellschaft Process for the preparation of a concrete filler
DE3209266A1 (en) * 1982-03-13 1983-10-13 Heinz Dipl.-Ing. 4390 Gladbeck Hölter Process for utilising spoil from coal mining
EP0120097A1 (en) * 1983-03-18 1984-10-03 LEONHARD WEISS GmbH & Co. Process for the solidification of sludges
DE3313727A1 (en) * 1983-04-15 1984-10-18 Bergwerksverband Gmbh, 4300 Essen Process for producing dam-building and backfill materials
DE3426640A1 (en) * 1984-07-19 1986-01-23 Thyssen Industrie Ag, 4300 Essen Process and equipment for the heat treatment of coarse-grained material
DE3429506A1 (en) * 1984-08-10 1986-02-20 Thyssen Industrie Ag, 4300 Essen Process for the ceramisation of tailings
DE3630697A1 (en) * 1985-09-10 1987-03-12 Steirische Magnesit Ind Ag Process for producing clinkers from sludges containing heavy metals
DE3612931A1 (en) * 1986-04-17 1987-10-22 Hoelter Heinz Mining mortar from waste dirt of coal extraction

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE800286C (en) * 1947-11-18 1950-10-25 Eisenwerke Akt Ges Deutsche Manufacture of mixed binders
DE816218C (en) * 1947-11-18 1951-10-08 Eisenwerke A G Deutsche Process for the production of sintered goods on suction sintering systems
DE810256C (en) * 1948-10-02 1951-08-06 Metallgesellschaft Ag Manufacture of building materials
DE820265C (en) * 1948-10-02 1951-11-08 Metallgesellschaft Ag Production of a hydraulic binder
DE849073C (en) * 1951-06-01 1952-09-11 Friedrich Cramer Process for the production of components
DE2407197B2 (en) * 1973-02-19 1975-11-06 Hitachi Shipbuilding & Engineering Co. Ltd., Osaka (Japan) Process for treating powdery or sludge-like materials containing harmful heavy metals
EP0039798A1 (en) * 1980-05-14 1981-11-18 BABCOCK-BSH AKTIENGESELLSCHAFT vormals Büttner-Schilde-Haas AG Method of firing and sintering waste washings
EP0045297A1 (en) * 1980-07-17 1982-02-03 Wienerberger Baustoffindustrie Aktiengesellschaft Process for the preparation of a concrete filler
DD153361A1 (en) * 1980-10-01 1982-01-06 Jochen Auerbach METHOD FOR THE PRODUCTION OF LIGHT SUPPLEMENTS AND FOR THE IMPROPER EVALUATION OF ABPRODUCTS
DE3209266A1 (en) * 1982-03-13 1983-10-13 Heinz Dipl.-Ing. 4390 Gladbeck Hölter Process for utilising spoil from coal mining
EP0120097A1 (en) * 1983-03-18 1984-10-03 LEONHARD WEISS GmbH & Co. Process for the solidification of sludges
DE3313727A1 (en) * 1983-04-15 1984-10-18 Bergwerksverband Gmbh, 4300 Essen Process for producing dam-building and backfill materials
DE3426640A1 (en) * 1984-07-19 1986-01-23 Thyssen Industrie Ag, 4300 Essen Process and equipment for the heat treatment of coarse-grained material
DE3429506A1 (en) * 1984-08-10 1986-02-20 Thyssen Industrie Ag, 4300 Essen Process for the ceramisation of tailings
DE3630697A1 (en) * 1985-09-10 1987-03-12 Steirische Magnesit Ind Ag Process for producing clinkers from sludges containing heavy metals
DE3612931A1 (en) * 1986-04-17 1987-10-22 Hoelter Heinz Mining mortar from waste dirt of coal extraction

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0433684A2 (en) * 1989-11-22 1991-06-26 CONTENTO TRADE S.A.S. di CIOFFI ILARIA Process for the recovery of inorganic industrial waste
EP0433684A3 (en) * 1989-11-22 1991-10-09 Contento Trade S.A.S. Di Cioffi Ilaria Process for the recovery of inorganic industrial waste
CN102268235A (en) * 2010-06-01 2011-12-07 由伟 Infrared absorption material prepared by using coal gangue, and preparation method thereof
CN103541506A (en) * 2013-09-23 2014-01-29 沈阳建筑大学 Special-shaped section steel rib gangue concrete column
CN103541507A (en) * 2013-09-23 2014-01-29 沈阳建筑大学 Special-shaped section steel tube gangue concrete core column
CN107352907A (en) * 2017-07-28 2017-11-17 固岩科技发展有限公司 A kind of preparation method of colliery filling slurry
CN108002727A (en) * 2017-12-04 2018-05-08 蔡贤均 A kind of building mortar and cement prefabricated product and preparation method thereof
CN109942275A (en) * 2019-04-17 2019-06-28 郑州市新郑梅久实业有限公司 A kind of ceramsite sand and its processing technology using gangue production
CN109942275B (en) * 2019-04-17 2021-10-22 郑州市新郑梅久实业有限公司 Ceramsite sand produced by utilizing coal gangue and processing technology thereof
CN110078401A (en) * 2019-05-15 2019-08-02 中南大学 A kind of technique that gangue belt sintering prepares active mixed material
CN112759319A (en) * 2020-11-26 2021-05-07 中国矿业大学(北京) Controllable low-strength mine filling material
CN112759319B (en) * 2020-11-26 2022-04-05 中国矿业大学(北京) Controllable low-strength mine filling material
CN114133194A (en) * 2020-12-16 2022-03-04 淮北工业建筑设计院有限责任公司 All-coal gangue rapid-hardening early-strength concrete and preparation method thereof

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