WO2010057512A1 - Verfahren zur aufbereitung von braunkohle - Google Patents
Verfahren zur aufbereitung von braunkohle Download PDFInfo
- Publication number
- WO2010057512A1 WO2010057512A1 PCT/EP2008/009925 EP2008009925W WO2010057512A1 WO 2010057512 A1 WO2010057512 A1 WO 2010057512A1 EP 2008009925 W EP2008009925 W EP 2008009925W WO 2010057512 A1 WO2010057512 A1 WO 2010057512A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lignite
- coal
- brown coal
- screening
- screen
- Prior art date
Links
- 239000003077 lignite Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000012216 screening Methods 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000000227 grinding Methods 0.000 claims abstract description 7
- 238000002485 combustion reaction Methods 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims abstract description 4
- 238000002309 gasification Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000003245 coal Substances 0.000 abstract description 29
- 238000012544 monitoring process Methods 0.000 abstract 1
- 239000002023 wood Substances 0.000 description 6
- TVXBFESIOXBWNM-UHFFFAOYSA-N Xylitol Natural products OCCC(O)C(O)C(O)CCO TVXBFESIOXBWNM-UHFFFAOYSA-N 0.000 description 5
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 description 5
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 description 5
- 229960002675 xylitol Drugs 0.000 description 5
- 235000010447 xylitol Nutrition 0.000 description 5
- 239000000811 xylitol Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 3
- 238000010334 sieve classification Methods 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 1
- 229910052683 pyrite Inorganic materials 0.000 description 1
- 239000011028 pyrite Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Definitions
- the invention relates to a process for the treatment of lignite for combustion and / or gasification in order to generate electricity, wherein the lignite wet lignite is first pre-broken and then comminuted in a grinder and then the milled coal is fed to a drying.
- Such a method is known for example from 196 18 880 A1.
- a rupture of the lignite wet lignite takes place on a grain size of about 50-150 mm.
- a foreign body balance of wood residues, xylitol contents, admixtures of pyrite, metal and non-metallic foreign bodies, etc . The FremdMechauss is a multi-stage fine grain processing downstream. In this case, for example, a multi-stage fine grinding with appropriate sieve classification is provided.
- the processed fine grain is fed to a fluidized bed dryer, in which inevitably process-related an internal post-shredding of lignite takes place.
- a subsequent screening of the drying coal downstream of the dryer and a subsequent grinding of the oversize particles takes place. It has been found to be energetically particularly favorable for the power plant process, the comminuted raw lignite in the manner described above in a fluidized bed dryer to dry and in dried form the
- Fluid bed dryers equipped with relatively close-packed heat exchangers can lead to significant operational problems that significantly affect the performance and efficiency of the process. Attempts have therefore been made to make both the pre-crushing of brown coal more effective, and to improve the foreign matter balance immediately after the pre-crushing.
- the invention is therefore based on the object to improve a method of the type mentioned in terms of the retention of foreign substances and / or foreign bodies.
- the object is achieved according to the invention by a method for the treatment of lignite for combustion and / or gasification for the purpose of generating electricity, wherein the lignite brown coal is first pre-broken and then comminuted in a grinder and then the milled coal is fed to a drying, the process itself characterized in that the milling device means for FremdMechausidos from the material flow are immediately downstream.
- the invention is new ways in terms of foreign body inventory. Unlike in the prior art, the invention provides for downstream adjustment of the foreign matter content of the grinding. Although a certain proportion of foreign bodies and foreign matter would be withstood in a screening in the sense of a Siebklasstechnik, but the screening is usually done with regard to the desired separation section so that the
- rescreening does not mean sieve classification in the true sense in which a particular separation cut within the grain fraction is desired. Rather, in the rescreening according to the invention, 100% of the brown coal should be in the sieve pass, i.e., this sifting is a control sieving.
- the brown coal is suitably ground to an average grain size of 0-2 mm.
- the lignite is subjected to their grinding a drying in a fluidized bed dryer.
- the lignite is comminuted to a mean grain diameter (D50) of a maximum of 1 mm.
- the subsequent screening is carried out using a screening device with a mesh size of at least 4 ⁇ 6 mm, preferably from about 6 ⁇ 10 mm to about 10 ⁇ 15 mm.
- the comminution of the brown coal is carried out in two stages using two series-connected grinding devices, wherein the screening (control screening) takes place behind the second comminution stage.
- the screening can be done by means of at least one ventilated and / or heated vibrating screen, which is connected downstream of the mill discharge.
- the vibrating screen can be designed and arranged so that it is adapted to the geometry of the M ⁇ hlenaustrages. The invention will be explained below with reference to an embodiment shown in the drawings.
- Figure 2 shows a part of the discharge from a coal mill with downstream
- Vibrating screen and downstream trough chain conveyor Vibrating screen and downstream trough chain conveyor.
- FIG. 1 shows only part of the coal processing of lignite for combustion in a boiler for generating steam.
- the raw lignite with a water content of up to about 65% usually leaves the open pit with a maximum piece size of, for example, 300 mm.
- the delivered from the open pit raw coal is pre-crushed by a crusher, not shown, to a grain size of, for example, 0-50 mm and fed via conveyor belts 1 one or more Rohkohlebunkern 2. Both in front of the crusher and behind the crusher, foreign matter retention is provided for the separation of foreign bodies such as metal parts or pieces of wood. Also, in the raw coal often larger amounts of more or less fused xylitol can be found.
- the raw lignite coal is from the raw coal bunker 2 via a
- the coal mill 5 may be formed, for example, in a known manner as a hammer mill or impact mill.
- the first coal mill 5 is a comminution of lignite, for example, to a Grain size between 0 and 10 mm.
- the first coal mill 5 can be followed directly by a second coal mill 6.
- the milled brown coal emerges with an average grain size of, for example, 0-2 mm.
- a control screen 7 is connected immediately downstream.
- the sieve passage of the control sieve 7 is fed to a trough chain conveyor 8, which directly or indirectly feeds a fluidized bed drier, not shown.
- the screen overflow of the control sieve 7 is completely out of the process.
- the screen overflow of the control screen 7 can also be subjected to a sighting, for example, to be able to withstand wood and xylitol from the process.
- the wood and / or xylitol are crushed as fibrous materials, for example, crushed in a cutting mill, and the process in crushed form.
- the control screen 7 is designed as a vibrating screen with a relatively large mesh size of for example 6 x 10 mm, so that it is ensured that the discharge from the second coal mill 6, as far as this is lignite, goes through 100% of the screen passage.
- control screen 7 is arranged in the form of a vibrating screen.
- control screen 7 is arranged in a screen housing 11, which is approximately gas-tight connected to the discharge chute 9 of the coal mill 6.
- the screen housing 11 is in turn connected with its Austragsschurre 12 to a designated 13 trough chain conveyor.
- the screen housing 11 is heated by means of air.
- an air connection 14 is provided via which the screen housing 11 is flushed with gas through the discharge chute 12 in the conveyor chain conveyor 8.
- the heating and flushing of the Screen housing with air or flue gas serves to prevent caking of the fine coal within the screen housing 11 and / or on the sieve bottom 10.
- the screen housing can be operated with a vacuum of 5-10 mbar.
- an air outlet on the housing of the trough chain conveyor 13 is designated.
- the screen housing 11 is provided with an open Siebaustritt 17 over which the screen overflow is withdrawn.
- the screen overflow can be promoted for example to a designated band or in a container provided for this purpose.
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Combined Means For Separation Of Solids (AREA)
- Disintegrating Or Milling (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Crushing And Grinding (AREA)
- Drying Of Solid Materials (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2008/009925 WO2010057512A1 (de) | 2008-11-24 | 2008-11-24 | Verfahren zur aufbereitung von braunkohle |
RU2011125922/06A RU2484375C2 (ru) | 2008-11-24 | 2008-11-24 | Способ подготовки бурого угля |
CN2008801320620A CN102224224A (zh) | 2008-11-24 | 2008-11-24 | 褐煤处理方法 |
EP08875033.6A EP2350239B1 (de) | 2008-11-24 | 2008-11-24 | Verfahren zur aufbereitung von braunkohle |
AU2008364237A AU2008364237B2 (en) | 2008-11-24 | 2008-11-24 | Method for preparing brown coal |
US13/130,645 US8662426B2 (en) | 2008-11-24 | 2008-11-24 | Method for processing brown coal |
UAA201107958A UA100931C2 (uk) | 2008-11-24 | 2008-11-24 | Спосіб підготовки бурого вугілля |
CA2742713A CA2742713C (en) | 2008-11-24 | 2008-11-24 | Process for processing brown coal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2008/009925 WO2010057512A1 (de) | 2008-11-24 | 2008-11-24 | Verfahren zur aufbereitung von braunkohle |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010057512A1 true WO2010057512A1 (de) | 2010-05-27 |
Family
ID=40903501
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2008/009925 WO2010057512A1 (de) | 2008-11-24 | 2008-11-24 | Verfahren zur aufbereitung von braunkohle |
Country Status (8)
Country | Link |
---|---|
US (1) | US8662426B2 (de) |
EP (1) | EP2350239B1 (de) |
CN (1) | CN102224224A (de) |
AU (1) | AU2008364237B2 (de) |
CA (1) | CA2742713C (de) |
RU (1) | RU2484375C2 (de) |
UA (1) | UA100931C2 (de) |
WO (1) | WO2010057512A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012010078A1 (de) * | 2012-05-23 | 2013-11-28 | Rwe Power Ag | Verfahren zur Aufbereitung von grubenfeuchter Rohbraunkohle |
CN116213010B (zh) * | 2023-03-27 | 2023-07-18 | 兰州兰煤节净能源有限公司 | 一种应用于煤粉生产用的研磨机构 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB358181A (en) | 1929-11-30 | 1931-10-08 | Hector Hardy | Process for the manufacture of agglomerated balls or briquettes from coal, without the addition of tar |
US4615712A (en) | 1985-08-09 | 1986-10-07 | The United States Of America As Represented By The United States Department Of Energy | Fuel agglomerates and method of agglomeration |
DE10150135A1 (de) * | 2001-10-11 | 2003-05-08 | Lausitzer Braunkohle Ag | Verfahren zur Herstellung eines hochwertigen, großstückigen Kaminbrennstoffs sowie Kaminbrennstoff |
US20080041982A1 (en) * | 2006-07-31 | 2008-02-21 | Environmental Reclamation And Recycling, L.C. | Construction and demolition waste recycling system and method |
DE102006045042A1 (de) | 2006-09-25 | 2008-04-03 | Schnorr, Karl-Ernst, Dipl.-Ing. | Brennstoffherstellung aus Abfall durch Luftherd gestützte Siebtrennung |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU28278A1 (ru) | 1931-08-11 | 1932-11-30 | М.М. Воротников | Приспособление дл подачи молотого угл в топки или печи |
SU140040A1 (ru) | 1960-11-17 | 1960-11-30 | В.П. Грибков | Способ подготовки высоковлажного бурого угл дл брикетировани |
SU546646A1 (ru) | 1973-03-19 | 1977-02-15 | Предприятие П/Я М-5817 | Способ получени гранулированного угл из лигнина |
CN1030933A (zh) | 1988-01-16 | 1989-02-08 | 长春煤炭科学研究所 | 褐煤无粘结剂成型 |
RU2010841C1 (ru) | 1992-02-04 | 1994-04-15 | Российско-австрийско-венгерское совместное предприятие "РОСАВЕН" | Способ подготовки топлива, преимущественно бурого угля, для брикетирования |
DE19618880C2 (de) * | 1996-05-10 | 2001-12-13 | Rheinische Braunkohlenw Ag | Verfahren zum Aufbereiten von Braunkohle |
-
2008
- 2008-11-24 EP EP08875033.6A patent/EP2350239B1/de not_active Not-in-force
- 2008-11-24 UA UAA201107958A patent/UA100931C2/uk unknown
- 2008-11-24 CN CN2008801320620A patent/CN102224224A/zh active Pending
- 2008-11-24 CA CA2742713A patent/CA2742713C/en not_active Expired - Fee Related
- 2008-11-24 US US13/130,645 patent/US8662426B2/en not_active Expired - Fee Related
- 2008-11-24 RU RU2011125922/06A patent/RU2484375C2/ru not_active IP Right Cessation
- 2008-11-24 WO PCT/EP2008/009925 patent/WO2010057512A1/de active Application Filing
- 2008-11-24 AU AU2008364237A patent/AU2008364237B2/en not_active Ceased
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB358181A (en) | 1929-11-30 | 1931-10-08 | Hector Hardy | Process for the manufacture of agglomerated balls or briquettes from coal, without the addition of tar |
US4615712A (en) | 1985-08-09 | 1986-10-07 | The United States Of America As Represented By The United States Department Of Energy | Fuel agglomerates and method of agglomeration |
DE10150135A1 (de) * | 2001-10-11 | 2003-05-08 | Lausitzer Braunkohle Ag | Verfahren zur Herstellung eines hochwertigen, großstückigen Kaminbrennstoffs sowie Kaminbrennstoff |
US20080041982A1 (en) * | 2006-07-31 | 2008-02-21 | Environmental Reclamation And Recycling, L.C. | Construction and demolition waste recycling system and method |
DE102006045042A1 (de) | 2006-09-25 | 2008-04-03 | Schnorr, Karl-Ernst, Dipl.-Ing. | Brennstoffherstellung aus Abfall durch Luftherd gestützte Siebtrennung |
Also Published As
Publication number | Publication date |
---|---|
US8662426B2 (en) | 2014-03-04 |
CN102224224A (zh) | 2011-10-19 |
AU2008364237A1 (en) | 2011-06-30 |
EP2350239A1 (de) | 2011-08-03 |
UA100931C2 (uk) | 2013-02-11 |
CA2742713C (en) | 2016-02-16 |
RU2011125922A (ru) | 2012-12-27 |
EP2350239B1 (de) | 2018-03-28 |
US20110283606A1 (en) | 2011-11-24 |
CA2742713A1 (en) | 2010-05-27 |
RU2484375C2 (ru) | 2013-06-10 |
AU2008364237B2 (en) | 2012-12-20 |
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