CN101701158A - Process for upgrading low-rank coal in an internally heating way with heated gas carrier - Google Patents
Process for upgrading low-rank coal in an internally heating way with heated gas carrier Download PDFInfo
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- CN101701158A CN101701158A CN200910212348A CN200910212348A CN101701158A CN 101701158 A CN101701158 A CN 101701158A CN 200910212348 A CN200910212348 A CN 200910212348A CN 200910212348 A CN200910212348 A CN 200910212348A CN 101701158 A CN101701158 A CN 101701158A
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- 239000003245 coal Substances 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000008569 process Effects 0.000 title claims abstract description 14
- 238000010438 heat treatment Methods 0.000 title abstract description 4
- 239000007789 gas Substances 0.000 claims abstract description 44
- 241000406668 Loxodonta cyclotis Species 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 238000005516 engineering process Methods 0.000 claims description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 17
- 239000001301 oxygen Substances 0.000 claims description 17
- 229910052760 oxygen Inorganic materials 0.000 claims description 17
- 230000008676 import Effects 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 230000020169 heat generation Effects 0.000 claims description 2
- 238000000197 pyrolysis Methods 0.000 abstract description 24
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003546 flue gas Substances 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000012546 transfer Methods 0.000 abstract description 2
- 206010021143 Hypoxia Diseases 0.000 abstract 4
- 230000001146 hypoxic effect Effects 0.000 abstract 4
- 125000004122 cyclic group Chemical group 0.000 abstract 2
- 239000012467 final product Substances 0.000 abstract 1
- 239000008187 granular material Substances 0.000 abstract 1
- 239000002802 bituminous coal Substances 0.000 description 4
- 239000011280 coal tar Substances 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
- 239000003077 lignite Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003476 subbituminous coal Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 239000011269 tar Substances 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002631 hypothermal effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004058 oil shale Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B49/00—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated
- C10B49/02—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with hot gases or vapours, e.g. hot gases obtained by partial combustion of the charge
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/04—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of powdered coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
- C10B57/10—Drying
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L9/00—Treating solid fuels to improve their combustion
- C10L9/08—Treating solid fuels to improve their combustion by heat treatments, e.g. calcining
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/18—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles
- F26B11/20—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles with stirring devices which are held stationary
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention discloses a process for upgrading low-rank coal in an internally heating way with the heated gas carrier, comprising the following steps: (1) the crushed and screened raw coal is added to a rotating furnace grate arranged at the bottom of a reactor through a raw coal feeding elephant trunk; (2) hypoxic heated gas enters the reactor from a heating gas inlet arranged below the reactor to directly contact the raw coal sample and transfer heat to the raw coal sample through a hole chiseled on the rotating furnace grate, and the hypoxic heated gas and the raw coal sample are dried and subjected to the pyrolysis reaction; and (3) after a certain time of reaction, with the rotation of the rotating furnace grate, the processed raw coal sample is fixed on a plow-type mechanical stirrer which is arranged above the rotating furnace grate and is pushed to a discharge opening, and the tail gases of the heated gas are discharged out of a gas exhausting opening. The invention uses the hypoxic cyclic flue gas as the heat source to distill the low-rank coal and ensures that the hypoxic cyclic flue gas directly exchanges heat with the solid low-rank coal, thereby having high thermal efficiency and low energy consumption ratio. In addition, the invention has low requirement for the size of the granules of the processed low-rank coal and wide application range and can effectively reduce the content of the dust in the tail gases to be good for the transportation of the final product.
Description
Technical field
The present invention relates to a kind of technology of utilizing weary oxygen hot gas carrier to carry out the low-rank coal upgrading of internal heat type.
Background technology
Exploitation of the coal resources of China at present and utilization are still based on hard coal and bituminous coal, along with the continuous increase of China to energy demand, and the resource anxiety that causes of hard coal and bituminous coal resource overexploitation, and transform replacement high-order coal by low-rank coal being carried out upgrading, alleviate energy demand pressure and seem more and more important.
Low-rank coal comprises sub-bituminous coals such as mud coal, brown coal and long-flame coal, bottle coal, weakly caking coal, accounts for 50% of world's coal resources reserves, and same low-rank coal is also extremely abundant at China's reserves, accounts for more than 60% of coal in China reserves greatly.Mainly be distributed in provinces such as Yunnan, the Inner Mongol, northeast, Sichuan.Be characterized in the water content height, generally account for (as received basis) more than 20%; The fugitive constituent height is about 30～50% (dry ash-free basises); Calorific value is low, at 2500～4500 kilocalories/kilogram.
At low-rank coal reactive behavior height, easily spontaneous combustion, be difficult for long-distance transport, water content is big, calorific value is low etc. shortcoming, the exploitation of low-rank coal process for upgrading mainly be two kinds: two kinds of drying and upgrading and low-temperature pyrolysis (pyrolysis) process for upgrading.Wherein drying and upgrading technology can only to a certain degree remove moisture in coal on the one hand, can not reach purpose complete or that the overwhelming majority removes, very easily the revert to take drugs phenomenon of water and spontaneous combustion of dried on the other hand coal is so the process for upgrading developing direction of low-rank coal mainly is the low-temperature pyrolysis upgrading.
The research of low-rank coal being carried out upgrading by low-temperature pyrolysis (pyrolysis) just began to carry out at the beginning of last century, before and after the eighties in last century, peak, many technologies of distinguishing feature separately that have have been developed both at home and abroad, for example: the external representative immobilized body hypothermia distillation process of L-R (Lu Qi-Rule) that Germany is arranged, the Toscoal technology of Oil Shale Corporation of America, the Garrett of U.S. Occidental Research Co. (US) 10889 Wilshire Blvd, Los Angeles, California 90024, technology, U.S. COED technology; The domestic existing representative SJ that Shaanxi San Jiang group is arranged, the immobilized body technology of the DG of Dalian University of Technology, the rotary kiln technology of the total institute of coal science, and the circular fluid bed coupling technology of the Chinese Academy of Sciences.Owing to can't solve the moisture high problem of real brown coal, the technology of mature industryization that is used for brown coal destructive distillation upgrading is less, concentrates on the distillation process of high volatilization, weak bonding sub-bituminous coal mostly.
Chinese patent CN201053004Y has introduced a kind of Technology of using rotary kiln to carry out sub-bituminous coal and bituminous coal destructive distillation upgrading processing; though it is big that this technology is handled the coal amount; can accomplish scale production; but it is not high to handle the low-rank coal ability; energy consumption is big; and factory construction is required high, take up an area of bigger, the coordinative composition of equipments system complex.
The Technology that a kind of internal thermal upright stove that uses gas carrier carries out weak caking coal destructive distillation upgrading is disclosed among the Chinese patent CN1966612A, this technology can only be used for the upgrading processing of the lower bituminous coal of water content, coal requires high, is difficult to realize handling the variation of coal; And this technology is handled coal amount and little in order to guarantee heat transfer efficiency and gas internal circulating load, is difficult to realize plant-scale extension production.
Chinese patent CN1847364A discloses a kind of circulating fluidized bed and rotary kiln of utilizing and has carried out thermoset carrier pyrolytic Technology, this technology is by using semicoke heat solid thermal barrier in circulating fluidized bed, be recycled to then in the rotary kiln low-rank coal is carried out pyrogenation and carbonization, though technology is simple, the thermo-efficiency height, and the high heating value gas and the coal tar of the big yield of acquisition, but the restriction of the powder separation efficiency of being bullied in the production process, gas and tar products dust-laden height, the line clogging problem does not thoroughly solve, therefore industrialization degree is not high, and production process is big to environmental influence.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of gas carrier internal heat type low-rank coal process for upgrading, not only technological process simple, be easy to control, and thermo-efficiency height, can loss-rate low can be used for the multiple low-rank coal coal of upgrading.
In order to address the above problem, a kind of gas carrier internal heat type low-rank coal process for upgrading provided by the invention, this technology comprises the steps:
1) join in the rotation grate of reactor bottom through raw coal charging elephant trunk through the feed coal of pulverizing and screening is handled, the drop point of charging elephant trunk and the distance between the grate are for handling thickness of coal seam;
2) weary oxygen heated air enters from the hot gas import that is arranged on the reactor below, and directly contacts with coal sample by punchinging on the grate and to conduct heat generation drying or pyrolytic reaction;
3) through after certain reaction times, with the rotation of rotation grate, the plough formula mechanical stirrer that the coal sample after the processing is fixedly installed on rotation grate top is pushed into discharge opening, and hot gas tail gas is discharged through exhaust outlet.
Preferably, the raw coal particle size distribution that enters described reactor is at 6～50mm, and the oxygen level of the weary oxygen heated air of import is less than 1%.
The present invention has following advantage:
1, the present invention uses weary oxygen cycle flue gas as the pyrogenous thermal source of low-rank coal, and flue gas directly carries out heat exchange with the solid coal, and thermo-efficiency height, energy loss-rate are low;
2, Technology adaptability is good, can be used for the multiple low-rank coal coal of upgrading;
3, raw coal size requires lowly, smoke content is low in the process gas, and the protection environment has also been alleviated the problem that dust and tar mix easy blocking pipe in the long-time running;
4, technological process simple, be easy to control, rich choice of products, market readjustment height are easy to industrial scale.
Description of drawings
Fig. 1 is gas carrier internal heat type low-rank coal device for improving quality structure of the present invention and process schematic representation.
1-raw coal charging elephant trunk
The 2-reactor
3-raw coal coal sample
The import of 4-hot gas
5-rotates grate
6-plough formula mechanical stirrer
The 7-exhaust outlet
The 8-discharge opening
Embodiment
As shown in Figure 1, join in the rotation grate 5 of reactor 2 through raw coal charging elephant trunk 1 at the feed coal of 6～50mm through the particle size distribution of pulverizing and screening is handled, the drop point of charging elephant trunk and the distance between the grate are for handling thickness of coal seam, oxygen level enters from the hot gas import 4 that is arranged on below the reactor 2 in the weary oxygen heated air below 1%, directly contact with coal sample 3 by punchinging on the grate and to conduct heat, drying or pyrolytic reaction take place, after certain reaction times, rotation with rotation grate 5, coal sample after the processing is fixedly installed on the plough formula mechanical stirrer 6 of rotation grate 5 tops and scrapes to discharge opening 8, enter into next process, hot gas tail gas is discharged through exhaust outlet 7.
Describe below by concrete demonstration example.
Demonstration example 1, will through crush and screen handle to 15-50mm about 25 tons moisture 14.25%, fugitive constituent is 25.43%, thermal value is that the weak cohesiveness sub-bituminous coal of 5500 kilocalorie/kilograms is at first sent in the gas carrier internal heat type dry reactor 2, dry gas is an oxygen level 0.8%, the weary oxygen hot gas that temperature is 320 ℃, moisture 3% coal sample enters in the gas carrier internal heat type pyrolysis reactor 2 and carries out low-temperature pyrolysis behind the 25min, destructive distillation gas is 600 ℃ of weary oxygen hot gass, obtaining productive rate after the 20min destructive distillation is handled is 69.9%, thermal value is the product coal of 6990 kilocalorie/kilograms, and reclaim 6.4% coal tar, dust-laden 190mg/Nm in the gas from dry distillation tail
3(after crossing cyclone).
Demonstration example 2, will through crush and screen handle to 15-50mm about 22 tons moisture 38.5%, fugitive constituent is 23.38%, thermal value is that 3400 kilocalories/kilogram brown coal are at first sent in the gas carrier internal heat type dry reactor 2, dry gas is an oxygen level 0.6%, the weary oxygen hot gas that temperature is 327 ℃, moisture 2% coal sample enters in the gas carrier internal heat type pyrolysis reactor 2 and carries out low-temperature pyrolysis behind the 20min, destructive distillation gas is 530 ℃ of weary oxygen hot gass, obtaining productive rate after the 20min destructive distillation is handled is 44.5%, thermal value is the product coal of 6100 kilocalorie/kilograms, and reclaim 4% coal tar, dust-laden 300g/Nm in the gas from dry distillation tail
3(after crossing cyclone).
Demonstration example 3, will through crush and screen handle to 6-50mm about 28 tons moisture 8.31%, fugitive constituent is 30.56%, thermal value is that the weak cohesiveness sub-bituminous coal of 6100 kilocalorie/kilograms is sent in the gas carrier internal heat type pyrolysis reactor and carried out low-temperature pyrolysis, destructive distillation gas is 660 ℃ of weary oxygen hot gass, and obtaining productive rate after the 25min destructive distillation is handled is 66.9%, and thermal value is the product coal of 7100 kilocalorie/kilograms, and reclaim 8.2% coal tar, dust-laden 140mg/Nm in the gas from dry distillation tail
3(after crossing cyclone).
In sum; being preferred embodiment of the present invention only below, is not to be used to limit protection scope of the present invention, therefore; all any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. gas carrier internal heat type low-rank coal process for upgrading, this technology comprises the steps:
1) joins in the rotation grate of reactor bottom through raw coal charging elephant trunk through the feed coal of pulverizing and screening is handled;
2) weary oxygen heated air enters from the hot gas import that is arranged on the reactor below, and directly contacts with coal sample by punchinging on the grate and to conduct heat generation drying or pyrolytic reaction;
3) through after certain reaction times, with the rotation of rotation grate, the coal sample after the processing is set at the plough formula mechanical stirrer of rotation grate top and scrapes to discharge opening, and hot gas tail gas is discharged through exhaust outlet.
2. technology as claimed in claim 1 is characterized in that, the raw coal particle size distribution that enters described reactor is at 6～50mm, and the oxygen level of the weary oxygen heated air of import is less than 1%.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102123486A CN101701158B (en) | 2009-11-06 | 2009-11-06 | Process for upgrading low-rank coal in an internally heating way with heated gas carrier |
| AU2010314605A AU2010314605B2 (en) | 2009-11-06 | 2010-11-04 | Low-rank coal upgrading method of gaseous carrier and internal heating type |
| PCT/CN2010/078421 WO2011054304A1 (en) | 2009-11-06 | 2010-11-04 | Low-rank coal upgrading method of gaseous carrier and internal heating type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102123486A CN101701158B (en) | 2009-11-06 | 2009-11-06 | Process for upgrading low-rank coal in an internally heating way with heated gas carrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101701158A true CN101701158A (en) | 2010-05-05 |
| CN101701158B CN101701158B (en) | 2012-11-28 |
Family
ID=42156085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102123486A Expired - Fee Related CN101701158B (en) | 2009-11-06 | 2009-11-06 | Process for upgrading low-rank coal in an internally heating way with heated gas carrier |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101701158B (en) |
| AU (1) | AU2010314605B2 (en) |
| WO (1) | WO2011054304A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002378A (en) * | 2010-11-25 | 2011-04-06 | 邵素英 | Coal low-temperature dry distillation production method |
| WO2011054304A1 (en) * | 2009-11-06 | 2011-05-12 | 湖南大唐先一科技有限公司 | Low-rank coal upgrading method of gaseous carrier and internal heating type |
| CN102382664A (en) * | 2010-08-30 | 2012-03-21 | 湖南大唐先一科技有限公司 | Step purification quality-improving machining equipment of low rank coal |
| CN102585857A (en) * | 2012-03-16 | 2012-07-18 | 山东科技大学 | Lignite drying and pyrolyzing device |
| CN103160291A (en) * | 2011-12-09 | 2013-06-19 | 新疆美特镁业有限公司 | Powdered coal coking device and powdered coal coking method |
| CN103773400A (en) * | 2012-10-19 | 2014-05-07 | 神华集团有限责任公司 | Rotary heating device |
| WO2014110886A1 (en) * | 2013-01-18 | 2014-07-24 | 北京神雾环境能源科技集团股份有限公司 | Rotary heating apparatus |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103937519B (en) * | 2013-01-22 | 2015-06-17 | 天华化工机械及自动化研究设计院有限公司 | Fixedly-rotated brown coal pyrolysis integrated furnace set |
| CN106833700B (en) * | 2017-02-24 | 2022-03-22 | 中冶焦耐(大连)工程技术有限公司 | Carbonization chamber furnace top coal charging box of external heating type low-order pulverized coal continuous dry distillation furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4402706A (en) * | 1981-12-21 | 1983-09-06 | Atlantic Richfield Company | Method and apparatus for oxidizing dried low rank coal |
| US4725337A (en) * | 1984-12-03 | 1988-02-16 | Western Energy Company | Method for drying low rank coals |
| US5322530A (en) * | 1992-10-20 | 1994-06-21 | Western Research Institute | Process for clean-burning fuel from low-rank coal |
| CN2203453Y (en) * | 1994-03-30 | 1995-07-12 | 史荣义 | Continuous quick sample dryer |
| AU6774796A (en) * | 1995-08-11 | 1997-03-12 | Charles E. Spear | Stabilization of low rank coals after drying |
| CN2377508Y (en) * | 1999-07-09 | 2000-05-10 | 张鸿飞 | Rotary stirring disk type dryer |
| CN2520488Y (en) * | 2001-12-31 | 2002-11-13 | 陈先保 | Superposed tray pneumatic dryer |
| CN2919154Y (en) * | 2006-04-21 | 2007-07-04 | 中国人民解放军总后勤部军需装备研究所 | Multiple disc type solid rotary baking apparatus |
| CN1966612B (en) * | 2006-10-30 | 2010-12-08 | 陕西省神木县三江煤化工有限责任公司 | Low-temperature coal carbonization manufacturing technique |
| CN101429463B (en) * | 2007-11-06 | 2010-09-08 | 湖南华银能源技术有限公司 | Process for processing coal with low degree of metamorphism |
| CN101294765B (en) * | 2008-06-05 | 2010-09-29 | 神华集团有限责任公司 | Low rank coal high temperature flue gas drying method and device |
| CN101760215B (en) * | 2008-12-23 | 2012-03-28 | 湖南华银能源技术有限公司 | Step-by-step quality-improving processing technique and processing system for low-level coal |
| CN101701158B (en) * | 2009-11-06 | 2012-11-28 | 内蒙古大唐华银锡东能源开发有限公司 | Process for upgrading low-rank coal in an internally heating way with heated gas carrier |
-
2009
- 2009-11-06 CN CN2009102123486A patent/CN101701158B/en not_active Expired - Fee Related
-
2010
- 2010-11-04 AU AU2010314605A patent/AU2010314605B2/en not_active Ceased
- 2010-11-04 WO PCT/CN2010/078421 patent/WO2011054304A1/en active Application Filing
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011054304A1 (en) * | 2009-11-06 | 2011-05-12 | 湖南大唐先一科技有限公司 | Low-rank coal upgrading method of gaseous carrier and internal heating type |
| CN102382664A (en) * | 2010-08-30 | 2012-03-21 | 湖南大唐先一科技有限公司 | Step purification quality-improving machining equipment of low rank coal |
| CN102382664B (en) * | 2010-08-30 | 2014-05-28 | 湖南华银能源技术有限公司 | Step purification quality-improving machining equipment of low rank coal |
| CN102002378A (en) * | 2010-11-25 | 2011-04-06 | 邵素英 | Coal low-temperature dry distillation production method |
| CN103160291A (en) * | 2011-12-09 | 2013-06-19 | 新疆美特镁业有限公司 | Powdered coal coking device and powdered coal coking method |
| CN103160291B (en) * | 2011-12-09 | 2016-06-08 | 新疆美特镁业有限公司 | Fine coal coke making apparatus and make burnt method |
| CN102585857A (en) * | 2012-03-16 | 2012-07-18 | 山东科技大学 | Lignite drying and pyrolyzing device |
| CN102585857B (en) * | 2012-03-16 | 2013-11-20 | 山东科技大学 | Lignite drying and pyrolyzing device |
| CN103773400A (en) * | 2012-10-19 | 2014-05-07 | 神华集团有限责任公司 | Rotary heating device |
| CN103773400B (en) * | 2012-10-19 | 2016-01-13 | 神华集团有限责任公司 | Rotatable heater |
| WO2014110886A1 (en) * | 2013-01-18 | 2014-07-24 | 北京神雾环境能源科技集团股份有限公司 | Rotary heating apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101701158B (en) | 2012-11-28 |
| AU2010314605B2 (en) | 2014-03-20 |
| AU2010314605A1 (en) | 2012-06-07 |
| WO2011054304A1 (en) | 2011-05-12 |
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