CN108191396A - Utilization of coal gangue decarbonization process - Google Patents
Utilization of coal gangue decarbonization process Download PDFInfo
- Publication number
- CN108191396A CN108191396A CN201810034270.2A CN201810034270A CN108191396A CN 108191396 A CN108191396 A CN 108191396A CN 201810034270 A CN201810034270 A CN 201810034270A CN 108191396 A CN108191396 A CN 108191396A
- Authority
- CN
- China
- Prior art keywords
- gangue
- utilization
- coal
- rotary furnace
- blanking device
- 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
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
- C04B33/1324—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
- C04B33/1328—Waste materials; Refuse; Residues without additional clay
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Dispersion Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Supply (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The present invention relates to a kind of utilization of coal gangue decarbonization process, belong to inorganic mineral resource recovery field, as follows by entire technological process：Then coal shale in brick making is promoted to feed bin by elevator, after preheating, into blanking device, subsequently into kiln, fires successfully, finally cool down and product is made by crushing；The gangue is the original gangue of bulk of Opencut coal mine mining or the gangue of coal washery.The product of this process unit production, refractory material, alumina silicate fibre, polycrystalline mullite fibre, superfine fibre, high-grade chemical filler, high-grade glass, high technology ceramics, high temperature wear resistant ceramic, precision casting mold etc. can be further processed into, is widely used in the numerous industries of metallurgy, building materials, chemical industry, aerospace, electric power, medical treatment, automobile etc..
Description
Technical field
The present invention relates to a kind of utilization of coal gangue decarbonization process, belong to inorganic mineral resource recovery field.
Background technology
Similar product present situation：
At present, the ground such as China vast Xinjiang, the Inner Mongol, Ningxia, Shaanxi, Shanxi of producing coal area particularly northwest, dew
Its mine surface area for taking off of exploitation is big, solid waste is more, stacks to take up an area and wastes numerous farmlands, pasture, forest, mountain
Ground.
A large amount of coal gangue storage yard, because lightning stroke, spontaneous combustion phenomena such as, produce a large amount of carbon, sulphur compound pernicious gas, sternly
Heavily contaminated atmospheric environment.By blowing, the drift of surface water, osmosis, seriously polluted life source of students, underground water,
River, lake.
Country will take out the fund inputs of over ten billion to the rings such as " engineering of putting out a fire ", tailing accident, prevention and cure of occupational disease every year
It is little that in the middle of border improvement and post-disaster reconstruction engineering project, infusion of financial resources is big, improvement takes effect.
For more than present situation, it would be highly desirable in creating a new process, go to lead out a brand-new emerging industry, that is,
" decarbonization process of solid waste (gangue) recycling production " this process units pattern, as a result, in the near future, China
(particularly the Northwest) will form a brand-new industry --- different from cement, lime, refractory material, aluminium oxide, heat
" gangue synthetic material " industry of the industries such as electricity.
Invention content
It is insufficient according to prior art, the technical problem to be solved by the present invention is to：A kind of utilization of coal gangue decarburization is provided
Technique can rationally utilize resource, be a kind of essential core technology of circular economy, and it is its ancestor that industrial refuse, which is turned waste into wealth,
Purport.
The technical solution adopted by the present invention to solve the technical problems is：A kind of utilization of coal gangue decarbonization process is provided,
Entire technological process is as follows：
Then coal shale in brick making is promoted to feed bin by broken by elevator, after preheating, into blanking device, so
Enter kiln afterwards, fire successfully, finally cool down and product is made；
The gangue is the original gangue of bulk of Opencut coal mine mining or the gangue of coal washery.
The gangue is 30-70mm by broken granularity.
The feed bin is double-deck feed bin.The double-deck feed bin is Double-layer seal type feed bin.
The preheating temperature is 270-450 DEG C；Preheating time is 3-7 hours.
The calcination temperature of the kiln is 1150 DEG C -1250 DEG C；Calcination time is 5-12 hours.
A kind of utilization of coal gangue decarburization kiln, including：Furnace body, preheater, blanking device, burner, rotary furnace, cigarette
Feed channel, secondary combustion-supporting wind pipeline, shaft cooler and finished product material lifting device, be provided in furnace body preheater, blanking device,
Burner, rotary furnace, flue, secondary combustion-supporting wind pipeline, shaft cooler and finished product material lifting device；
Wherein preheater lower end connection blanking device, blanking device lower end connect the feed inlet of furnace body；
The feed inlet of the blanking device discharge port connection rotary furnace, while rotary furnace front end is provided with burner；
The discharge port of rotary furnace is sequentially connected shaft cooler and finished product material lifting device.
The rotary furnace front end is connected with secondary combustion-supporting wind pipeline, and the secondary combustion-supporting wind pipeline other end connects vertical cooling
Device.
The flue connection preheater of the rotary furnace.
The beneficial effects of the invention are as follows：
1st, purposes：The product of this technique productions can be further processed into refractory material, alumina silicate fibre, polycrystalline and not come
Mineral wool, superfine fibre, high-grade chemical filler, high-grade glass, high technology ceramics, high temperature wear resistant ceramic, precision casting mold etc., extensively
General to be applied to the numerous industries of metallurgy, building materials, chemical industry, aerospace, electric power, medical treatment, automobile etc., replacement China has been on the verge of withered
The natural resources raw materials such as the alumine ore deposit that exhausts, clay pit, kaolin ore, flint clay (porcelain stone) ore deposit.
2nd, energy-saving effect：Gangue itself has the calorific value of 1500 kilocalories, often produces 1.0 tons of product consumption gangue waste materials
1.4 tons, 2100 kilocalories (usage factor 0.85, i.e. 1785 kilocalories) can be saved, are equivalent to standard coal 0.27KG, are worth 189 yuan,
It produces 100000 tons of products per year, 18,900,000 yuan can be saved every year.
3rd, UTILIZATION OF VESIDUAL HEAT IN：This production technology device, a large amount of waste heats generated in calcination process can be used for generating electricity, taking
Warm, bathing, dried product.
4th, it is inexpensive：Gangue waste utilization, economizes on resources, and saves soil, reduces pollution.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Wherein 1 is preheater；2 be blanking device；3 be burner；4 be rotary furnace；5 be flue；6 be secondary combustion-supporting
Wind pipeline；7 be shaft cooler；8 be finished product material lifting device；9 be furnace body
Specific embodiment
The embodiment of the present invention is described further below in conjunction with the accompanying drawings：
Embodiment 1
A kind of utilization of coal gangue decarbonization process, entire technological process are as follows：
Then coal shale in brick making is promoted to feed bin by broken by elevator, after preheating, into blanking device, so
Enter kiln afterwards, fire successfully, finally cool down and product is made；
The gangue is the original gangue of bulk of Opencut coal mine mining or the gangue of coal washery.
The gangue is 30-70mm by broken granularity.
The feed bin is double-deck feed bin.
The preheating temperature is 270-350 DEG C；Preheating time is 7 hours.
The calcination temperature of the kiln is 1150 DEG C -1250 DEG C；Calcination time is 12 hours.
It is 2.75 grams/cc that product density, which is made, and refractoriness reaches 1600 DEG C.
A kind of utilization of coal gangue decarburization kiln, including：Furnace body 9, preheater 1, blanking device 2, burner 3, revolution
Stove 4, flue 5, secondary combustion-supporting wind pipeline 6, shaft cooler 7 and finished product material lifting device 8 are provided with preheating in furnace body 1
Device 1, blanking device 2, burner 3, rotary furnace 4, flue 5, secondary combustion-supporting wind pipeline 6, shaft cooler 7 and finished product material carry
Rise device 8；
Wherein 1 lower end of preheater connection blanking device 2,2 lower end of blanking device connect the feed inlet of furnace body 1；
The feed inlet of 2 discharge port of the blanking device connection rotary furnace 4, while 4 front end of rotary furnace is provided with burner
3；
The discharge port of rotary furnace 4 is sequentially connected shaft cooler 7 and finished product material lifting device 8.
4 front end of rotary furnace is connected with secondary combustion-supporting wind pipeline 6, and the connection of 6 other end of secondary combustion-supporting wind pipeline is vertical
Cooler 7.
The flue 5 of the rotary furnace 4 connects preheater 1.
Embodiment 2
A kind of utilization of coal gangue decarbonization process, entire technological process are as follows：
Then coal shale in brick making is promoted to feed bin by broken by elevator, after preheating, into blanking device, so
Enter kiln afterwards, fire successfully, finally cool down and product is made；
The gangue is the original gangue of bulk of Opencut coal mine mining or the gangue of coal washery.
The gangue is 30-70mm by broken granularity.
The feed bin is double-deck feed bin.
The preheating temperature is 350-450 DEG C；Preheating time is 3 hours.
The calcination temperature of the kiln is 1150 DEG C -1250 DEG C；Calcination time is 6 hours.
It is 2.45 grams/cc that product density, which is made, and refractoriness reaches 1600 DEG C.
A kind of utilization of coal gangue decarburization kiln, including：Furnace body 9, preheater 1, blanking device 2, burner 3, revolution
Stove 4, flue 5, secondary combustion-supporting wind pipeline 6, shaft cooler 7 and finished product material lifting device 8 are provided with preheating in furnace body 1
Device 1, blanking device 2, burner 3, rotary furnace 4, flue 5, secondary combustion-supporting wind pipeline 6, shaft cooler 7 and finished product material carry
Rise device 8；
Wherein 1 lower end of preheater connection blanking device 2,2 lower end of blanking device connect the feed inlet of furnace body 1；
The feed inlet of 2 discharge port of the blanking device connection rotary furnace 4, while 4 front end of rotary furnace is provided with burner
3；
The discharge port of rotary furnace 4 is sequentially connected shaft cooler 7 and finished product material lifting device 8.
4 front end of rotary furnace is connected with secondary combustion-supporting wind pipeline 6, and the connection of 6 other end of secondary combustion-supporting wind pipeline is vertical
Cooler 7.
The flue 5 of the rotary furnace 4 connects preheater 1.
Claims (8)
1. a kind of utilization of coal gangue decarbonization process, it is characterised in that entire technological process is as follows：
Then coal shale in brick making is promoted to feed bin, after preheating, into blanking device, Ran Houjin by crushing by elevator
Enter kiln, fire successfully, finally cool down and product is made；
The gangue is the original gangue of bulk of Opencut coal mine mining or the gangue of coal washery.
2. utilization of coal gangue decarbonization process according to claim 1, it is characterised in that the gangue is by broken
Granularity afterwards is 30-70mm.
3. utilization of coal gangue decarbonization process according to claim 1, it is characterised in that the feed bin is double-deck feed bin.
4. utilization of coal gangue decarbonization process according to claim 1, it is characterised in that the preheating temperature is 270-
450℃；Preheating time is 3-7 hours.
5. utilization of coal gangue decarbonization process according to claim 1, it is characterised in that the calcination temperature of the kiln
It is 1150 DEG C -1250 DEG C；Calcination time is 5-12 hours.
6. a kind of utilization of coal gangue decarburization kiln, it is characterised in that including：Furnace body (9), preheater (1), blanking device
(2), burner (3), rotary furnace (4), flue (5), secondary combustion-supporting wind pipeline (6), shaft cooler (7) and finished product material carry
Device (8) is risen, preheater (1), blanking device (2), burner (3), rotary furnace (4), flue are provided in furnace body (1)
(5), secondary combustion-supporting wind pipeline (6), shaft cooler (7) and finished product material lifting device (8)；
Wherein preheater (1) lower end connection blanking device (2), the feed inlet of blanking device (2) lower end connection furnace body (1)；
The feed inlet of blanking device (2) discharge port connection rotary furnace (4), while rotary furnace (4) front end is provided with burning
Device (3)；
The discharge port of rotary furnace (4) is sequentially connected shaft cooler (7) and finished product material lifting device (8).
7. utilization of coal gangue decarburization kiln according to claim 6, it is characterised in that described rotary furnace (4) front end
It is connected with secondary combustion-supporting wind pipeline (6), secondary combustion-supporting wind pipeline (6) other end connection shaft cooler (7).
8. utilization of coal gangue decarburization kiln according to claim 6, it is characterised in that the cigarette of the rotary furnace (4)
Feed channel (5) connection preheater (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810034270.2A CN108191396A (en) | 2018-01-15 | 2018-01-15 | Utilization of coal gangue decarbonization process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810034270.2A CN108191396A (en) | 2018-01-15 | 2018-01-15 | Utilization of coal gangue decarbonization process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108191396A true CN108191396A (en) | 2018-06-22 |
Family
ID=62589375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810034270.2A Pending CN108191396A (en) | 2018-01-15 | 2018-01-15 | Utilization of coal gangue decarbonization process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108191396A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110981246A (en) * | 2019-11-21 | 2020-04-10 | 淮南创大实业有限责任公司 | Coal gangue decarburization device |
| CN111014231A (en) * | 2019-11-21 | 2020-04-17 | 淮南创大实业有限责任公司 | Coal gangue decarburization device |
| CN112923719A (en) * | 2021-02-03 | 2021-06-08 | 舒新前 | System and method for calcining coal gangue |
| CN113248113A (en) * | 2021-06-11 | 2021-08-13 | 秦皇岛合达能源科技开发有限公司 | Device and method for producing fibers by using coal gangue |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844746A (en) * | 2006-02-21 | 2006-10-11 | 焦玉萍 | Gangue and domestic refuse calciner, power generation and ceramic manufacturing system composed thereby |
| CN203474654U (en) * | 2013-08-23 | 2014-03-12 | 石家庄新华能源环保科技股份有限公司 | Heat storage type rotary kiln |
| CN105540599A (en) * | 2015-12-22 | 2016-05-04 | 山西晋坤矿产品有限责任公司 | Preparation method for high-quality kaolin through oxygen-increased highly-efficient calcination of coal gangue |
| CN105692639A (en) * | 2016-03-02 | 2016-06-22 | 张慧 | Method for preparing kaolin from coal gangue |
-
2018
- 2018-01-15 CN CN201810034270.2A patent/CN108191396A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844746A (en) * | 2006-02-21 | 2006-10-11 | 焦玉萍 | Gangue and domestic refuse calciner, power generation and ceramic manufacturing system composed thereby |
| CN203474654U (en) * | 2013-08-23 | 2014-03-12 | 石家庄新华能源环保科技股份有限公司 | Heat storage type rotary kiln |
| CN105540599A (en) * | 2015-12-22 | 2016-05-04 | 山西晋坤矿产品有限责任公司 | Preparation method for high-quality kaolin through oxygen-increased highly-efficient calcination of coal gangue |
| CN105692639A (en) * | 2016-03-02 | 2016-06-22 | 张慧 | Method for preparing kaolin from coal gangue |
Non-Patent Citations (1)
| Title |
|---|
| 朱亦仁编著: "《环境污染治理技术》", 31 August 1996, 北京：中国环境科学出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110981246A (en) * | 2019-11-21 | 2020-04-10 | 淮南创大实业有限责任公司 | Coal gangue decarburization device |
| CN111014231A (en) * | 2019-11-21 | 2020-04-17 | 淮南创大实业有限责任公司 | Coal gangue decarburization device |
| CN111014231B (en) * | 2019-11-21 | 2021-07-20 | 淮南创大实业有限责任公司 | Coal gangue decarburization device |
| CN112923719A (en) * | 2021-02-03 | 2021-06-08 | 舒新前 | System and method for calcining coal gangue |
| CN113248113A (en) * | 2021-06-11 | 2021-08-13 | 秦皇岛合达能源科技开发有限公司 | Device and method for producing fibers by using coal gangue |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108191396A (en) | Utilization of coal gangue decarbonization process | |
| CN101182142B (en) | Method for calcining cement by carbide slag replacing whole limestone | |
| CN102942314B (en) | Oil well cement and production method thereof | |
| CN103831285B (en) | Aluminium electroloysis is given up breeze innocuity disposal system and method thereof | |
| CN103351154A (en) | Thinned ceramic tile and manufacturing method thereof | |
| CN103342371A (en) | Process and device for whitening calcined black talc | |
| CN108314431A (en) | Composite ceramics prefabricated component and preparation method thereof | |
| CN106186702A (en) | A kind of method utilizing waste residue to prepare micro crystal material | |
| CN105236772A (en) | Shaft kiln-partition rotary kiln combination unit | |
| CN101565280B (en) | Manufacturing method for burning light burning magnesite powder by tunnel kiln | |
| CN104944995A (en) | Anti-corrosion zirconia corundum red brick for acid incinerator and preparation process of anti-corrosion zirconia corundum red brick | |
| CN105347702A (en) | Cement production rotary kiln device | |
| CN115504690B (en) | Preparation method of activated kaolinite | |
| CN203725484U (en) | Harmless disposal system for aluminum electrolysis waste carbon residue | |
| CN1844746A (en) | Gangue and domestic refuse calciner, power generation and ceramic manufacturing system composed thereby | |
| CN105565832A (en) | Method for preparing dry-process stamp mass from high-calcium low-silicon magnesite | |
| CN112028102B (en) | Treatment method and system for efficiently converting calcium sulfite in calcium-based desulfurized fly ash into calcium sulfate | |
| CN107298576A (en) | A kind of ceramic material and its manufacture method and application | |
| CN104002371B (en) | A kind of production technology utilizing limekiln using waste heat from tail gas coproduction air-entrained concrete building block | |
| CN113697821A (en) | Magnesium silicate powder and preparation method and application thereof | |
| CN104944988B (en) | Garbage disposal cement rotary kiln corrosion-resistant common brick and preparation process | |
| EP2703369A1 (en) | Process and plant for cement clinker production | |
| CN100455543C (en) | Ceramic production process by coal gas buringing in energy-saving roller kiln | |
| CN206469669U (en) | A kind of segmented rotary kiln | |
| CN101429593B (en) | Dezincification process for zinc-containing mash gas mud |
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: 20180622 |