EP0023455A1 - Verfahren und Anlage zum Trocknen und/oder Vorerhitzen zu verkokender Kohle - Google Patents
Verfahren und Anlage zum Trocknen und/oder Vorerhitzen zu verkokender Kohle Download PDFInfo
- Publication number
- EP0023455A1 EP0023455A1 EP80401095A EP80401095A EP0023455A1 EP 0023455 A1 EP0023455 A1 EP 0023455A1 EP 80401095 A EP80401095 A EP 80401095A EP 80401095 A EP80401095 A EP 80401095A EP 0023455 A1 EP0023455 A1 EP 0023455A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drying
- preheating
- coal
- enclosure
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003245 coal Substances 0.000 title claims abstract description 44
- 238000001035 drying Methods 0.000 title claims abstract description 30
- 238000009434 installation Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000007789 gas Substances 0.000 claims abstract description 43
- 239000000571 coke Substances 0.000 claims abstract description 34
- 239000003517 fume Substances 0.000 claims abstract description 29
- 238000002485 combustion reaction Methods 0.000 claims abstract description 16
- 238000005243 fluidization Methods 0.000 claims abstract description 12
- 238000004939 coking Methods 0.000 claims abstract description 11
- 238000004064 recycling Methods 0.000 claims abstract description 6
- 238000010791 quenching Methods 0.000 claims abstract description 5
- 230000000171 quenching effect Effects 0.000 claims abstract description 5
- 239000000779 smoke Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000007935 neutral effect Effects 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 4
- 239000002826 coolant Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 238000005304 joining Methods 0.000 claims 1
- 230000008033 biological extinction Effects 0.000 abstract description 10
- 238000000227 grinding Methods 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 3
- 235000021183 entrée Nutrition 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
Images
Classifications
-
- 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
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/02—Dry cooling outside the oven
Definitions
- the invention relates to a process for drying and / or preheating by entrainment and / or fluidization of carbon to be coked by means of a neutral coolant or reducing gas partially recycled and maintained at an appropriate temperature of the order of 250 to 65 ° C. , in which the coal to be dried and / or preheated is introduced into a drying and / or preheating chamber by means of an introduction device with known and / or adjustable flow rate.
- the invention also relates to an installation for implementing the method.
- the object of the invention is to avoid these drawbacks and to propose a new process and an installation for its implementation which make it possible to obtain good regulation of the temperature of the heat-transfer gas and good use of the sensible heat of the fumes. dry extinguishing of the coke, while avoiding the introduction into the extinguishing fumes of water vapor capable of gasifying the coke.
- Another object of the invention is to guarantee in all circumstances the supply of heat in the quantity necessary for the heat-transfer gas, that is to say the coal to be dried and / or preheated, while having the possibility of using the heat in excess of this necessary quantity, in particular if the latter is low or zero as a result of voluntary or accidental shutdown of the dryer and / or preheater.
- Another aim is, again, to be able, at any time, to separate the two extinguishing and drying and / or preheating installations in order to free them from each of the failures occurring at the other.
- the fraction of the extinguishing fumes used for heating the heat transfer gas and the unused fraction are used for the production of heat by heat exchange, and part of the heat necessary for drying and / or preheating of the coal is provided in addition by a combustion chamber whose caloric flow is controlled by the temperature measured in the drying and / or preheating chamber.
- the means for introducing the heat-transfer gas into the drying enclosure and / or preheating further comprises a combustion chamber interposed between the outlet pipe of the heat transfer gas from the exchanger and the means for introducing the heat transfer gas into the drying and / or preheating chamber.
- the combustion chamber In an installation ' in which the drying and / or preheating enclosure comprises means for measuring the temperature, it is advantageous for the combustion chamber to include means for regulating the caloric flow controlled by the means for measuring the temperature in the 'drying and / or preheating enclosure, or at its outlet, as is known per se.
- An installation for the pretreatment of coking coal comprises a preheater mill 1 for grinding and preheating in a fluidized bed.
- This grinder-preheater 1 comprises a fluidization enclosure 2 inside which rotates a hammer mill 3.
- the fluidizing and heating gas for the fluidization and preheating of the coal is produced in part in a combustion chamber 4 by combustion of gas brought to its burner 5 by a pipe 6 with air forced by a fan 7.
- the fumes from the pretreatment of the coal are recycled, through a heat exchanger 13 and a pipe 14, into the chamber combustion by a fan 8.
- the exchanger 13 is of a heat exchange type through a partition wall, for example tubes or a coil, avoiding any communication between the two gas circuits which must exchange heat.
- the hot gases coming from the heat exchanger 13 and from the combustion chamber 4 are brought, through a venturi 10, to a vertical pipe 9 for pneumatic transport and for pre-drying, in the lacquer-opening, of a conveyor screw 11 , the coal stored in a hopper 12.
- the vertical pipe 9 opens out as is known per se, into the enclosure 2 for fluidization and grinding and preheating. From the top of the enclosure 2 leaves a pipe 15 for pneumatic transport of the ground coal and preheated by the fluidization gas again acting as a gaseous transport vector.
- Line 15 brings the carrier gas and the coal transported to a battery of cyclones 16 to the vortex 17 of the last or the last group of which is connected a pipe 18 serving to collect the gases which are then distributed between an extraction pipe 19 and a recycling pipe 20, having a flow measurement throttle 28 and connected to the fan 8.
- the preheated coal is collected ready to be put in a coke oven, for which it is brought by a conveyor assembly 22 to a hot coal hopper 23.
- the main apparatus of which is a dry extinguishing chamber 30, of known type, which comprises a prechamber 31, constituting an introductory airlock. coke to be extinguished and which is introduced through an opening 32. From the prechamber 31, the coke descends into the cooling chamber 33 which constitutes a heat exchanger between the hot solid constituted by the coke and neutral or reducing fumes brought to the chamber cooling 33 by a fan 34 and a pipe 35 and evacuated to the thermal use of their sensible heat by a pipe 36. The gases and the vapor released, by the coke in the prechamber 31, are extracted by an extraction pipe 37. The cooled coke is extracted at 38.
- the neutral or reducing fumes are used in a closed circuit from the pipe 36 to the fan 34.
- a pipe 40 conducts these fumes to the exhaust chiller 13 through a pipe 41, 42 whose flow is controlled by a valve 43 or a set of valves.
- the pipe 41, 42 is closed by a bypass pipe 44 which may include a valve 45 contributing with the valve 43 to regulate the distribution of the hot smoke flow rates between the exchanger 13 and the pipe 44.
- the pipes 42 and 44 open into a pipe 45 supplying a boiler 46, at the outlet of which the extinguishing fumes, now cold, are brought back to the fan 34 through a dust collector 47 and the pipe 48.
- the installation of the invention also includes regulation devices.
- the installation also has a regulation circuit R 1 of the gas flow to the pipe 6 to control the additional caloric flow to the temperature measured in the enclosure 2, or to its setting, by a thermometric probe 24.
- the flow of recycled heat transfer gas is regulated at the outlet of the exchanger 13 by valves 25 and / or 26 controlled by pressure at the vortex 17 by a regulation circuit R 3 .
- the distribution of the flow of hot extinguishing fumes between the exchanger 41 and the bypass 44 is ensured by the valve 43 whose adjustable flow control is controlled by a circuit regulation valve R 4 , at the rate of the coal supply screw 11 for the dryer and / or preheater 1.
- the quantity of vapor produced is 26.1 t / h having the following characteristics: 440 ° C, 40 kg / cm 2 .
- the amount of heat recovered is around 325 therms per tonne of coke, or 240 therms per tonne of dry coal.
- 210 to 240 th / t of coke is required.
- it takes about 300 th / t of cokeo The thermal balance is therefore favorable to the process according to the invention.
- the smoke flow is 90,000 m 3 N / h at a temperature of 750 to 800 ° C.
- the temperature of 250 ° C can be taken as the set temperature at the temperature probe 24.
- the preheating temperature will therefore be maintained at 260 ° C. with good finesse by automatic action on the gas flow rate to the burner 5 of the combustion chamber 4.
- the regulation circuit R 2 will accordingly adjust the air flow rate so that the combustion remains stoichiometric.
- the speed of the gases in the preheating chamber 2 will be kept constant by acting on the flow of neutral smoke recycled in the combustion chamber, by the circuit R 3 , which keeps the pressure drop of the secondary cyclones constant by varying the flow recycled smoke.
- the coal flow rate is set to a constant value, chosen between 1/2 capacity and nominal capacity. If the coal flow rate is voluntarily changed, or if the humidity of the coal is variable, the preheating temperature and the speed of the gases are automatically maintained at their set value as just explained. The handling of the device is therefore extremely flexible.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7919531 | 1979-07-30 | ||
| FR7919531A FR2462467A1 (fr) | 1979-07-30 | 1979-07-30 | Procede et installation de sechage et/ou prechauffage de charbon a cokefier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0023455A1 true EP0023455A1 (de) | 1981-02-04 |
| EP0023455B1 EP0023455B1 (de) | 1983-11-09 |
Family
ID=9228428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP80401095A Expired EP0023455B1 (de) | 1979-07-30 | 1980-07-23 | Verfahren und Anlage zum Trocknen und/oder Vorerhitzen zu verkokender Kohle |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4338160A (de) |
| EP (1) | EP0023455B1 (de) |
| JP (1) | JPS5653183A (de) |
| AU (1) | AU536140B2 (de) |
| BR (1) | BR8004744A (de) |
| CA (1) | CA1161386A (de) |
| DE (1) | DE3065524D1 (de) |
| ES (1) | ES493629A0 (de) |
| FR (1) | FR2462467A1 (de) |
| RO (1) | RO81874A (de) |
| ZA (1) | ZA804256B (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0064617A2 (de) * | 1981-05-13 | 1982-11-17 | Krupp Koppers GmbH | Verfahren und Vorrichtung zum Betrieb einer Kokereianlage |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3153091B2 (ja) * | 1994-03-10 | 2001-04-03 | 株式会社荏原製作所 | 廃棄物の処理方法及びガス化及び熔融燃焼装置 |
| DE3044989C2 (de) * | 1980-11-28 | 1983-04-21 | Didier Engineering Gmbh, 4300 Essen | Verfahren zur trockenen Kokskühlung |
| US4492042A (en) * | 1981-08-28 | 1985-01-08 | Nippon Steel Corporation | Method for drying coking coals to be charged in a coke oven |
| JPH02131134U (de) * | 1989-04-01 | 1990-10-31 | ||
| US8062410B2 (en) | 2004-10-12 | 2011-11-22 | Great River Energy | Apparatus and method of enhancing the quality of high-moisture materials and separating and concentrating organic and/or non-organic material contained therein |
| US8523963B2 (en) | 2004-10-12 | 2013-09-03 | Great River Energy | Apparatus for heat treatment of particulate materials |
| US8579999B2 (en) * | 2004-10-12 | 2013-11-12 | Great River Energy | Method of enhancing the quality of high-moisture materials using system heat sources |
| US7540384B2 (en) * | 2004-10-12 | 2009-06-02 | Great River Energy | Apparatus and method of separating and concentrating organic and/or non-organic material |
| US7987613B2 (en) | 2004-10-12 | 2011-08-02 | Great River Energy | Control system for particulate material drying apparatus and process |
| US7275644B2 (en) | 2004-10-12 | 2007-10-02 | Great River Energy | Apparatus and method of separating and concentrating organic and/or non-organic material |
| US20080028634A1 (en) * | 2006-08-07 | 2008-02-07 | Syntroleum Corporation | Method for using heat from combustion turbine exhaust to dry fuel feedstocks |
| US20080028631A1 (en) * | 2006-08-07 | 2008-02-07 | Syntroleum Corporation | System for drying fuel feedstocks |
| CN102732269A (zh) * | 2011-03-29 | 2012-10-17 | 何巨堂 | 一种煤制焦装置干熄焦方法 |
| CN102851047B (zh) * | 2012-09-21 | 2014-03-05 | 山西鑫立能源科技有限公司 | 一种低变质烟煤的综合利用方法 |
| CN104987869A (zh) * | 2015-07-17 | 2015-10-21 | 南京贝特空调设备有限公司 | 干熄炉系统冷却装置 |
| CN109423314A (zh) * | 2017-09-01 | 2019-03-05 | 西安华江环保科技股份有限公司 | 一种干熄焦炉顶高温烟尘余热回收利用系统与方法 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE453464C (de) * | 1924-04-05 | 1927-12-08 | Heinrich Frohnhaeuser | Anlage zum Trocknen und Vorwaermen von Kokskohle |
| US1854407A (en) * | 1927-11-03 | 1932-04-19 | U G I Contracting Company | Means for preheating coal and cooling coke |
| FR2173997A1 (de) * | 1972-02-07 | 1973-10-12 | Waagner Biro Ag | |
| US3843458A (en) * | 1972-02-07 | 1974-10-22 | Waagner Biro American | Coal treating method and apparatus for coke plants |
| FR2225503A1 (de) * | 1973-04-13 | 1974-11-08 | Waagner Biro Ag | |
| FR2265840A1 (de) * | 1974-04-01 | 1975-10-24 | Buettner Schilde Haas Ag | |
| FR2378081A1 (fr) * | 1977-01-24 | 1978-08-18 | Charbonnages De France | Installation et procede de regulation du prechauffage de charbon a cokefier |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3007254A (en) * | 1953-08-10 | 1961-11-07 | Wilhelm F Schuster | Process and apparatus for drying colloidal substances such as lignite |
| US3793743A (en) * | 1972-08-23 | 1974-02-26 | Waagner Biro American | Apparatus for drying coal |
| DE2415758A1 (de) * | 1974-04-01 | 1976-02-26 | Buettner Schilde Haas Ag | Anlage zur kohletrocknung und vorerhitzung |
| DE2626653C3 (de) * | 1976-06-15 | 1982-01-07 | Bergwerksverband Gmbh | Verfahren und Vorrichtung zum Trocknen und Vorerhitzen von Kokskohle |
-
1979
- 1979-07-30 FR FR7919531A patent/FR2462467A1/fr active Granted
-
1980
- 1980-07-15 ZA ZA00804256A patent/ZA804256B/xx unknown
- 1980-07-16 AU AU60455/80A patent/AU536140B2/en not_active Ceased
- 1980-07-23 EP EP80401095A patent/EP0023455B1/de not_active Expired
- 1980-07-23 ES ES493629A patent/ES493629A0/es active Granted
- 1980-07-23 DE DE8080401095T patent/DE3065524D1/de not_active Expired
- 1980-07-28 RO RO80101828A patent/RO81874A/ro unknown
- 1980-07-28 JP JP10256680A patent/JPS5653183A/ja active Pending
- 1980-07-28 US US06/173,893 patent/US4338160A/en not_active Expired - Lifetime
- 1980-07-29 BR BR8004744A patent/BR8004744A/pt unknown
- 1980-07-29 CA CA000357227A patent/CA1161386A/fr not_active Expired
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE453464C (de) * | 1924-04-05 | 1927-12-08 | Heinrich Frohnhaeuser | Anlage zum Trocknen und Vorwaermen von Kokskohle |
| US1854407A (en) * | 1927-11-03 | 1932-04-19 | U G I Contracting Company | Means for preheating coal and cooling coke |
| FR2173997A1 (de) * | 1972-02-07 | 1973-10-12 | Waagner Biro Ag | |
| US3843458A (en) * | 1972-02-07 | 1974-10-22 | Waagner Biro American | Coal treating method and apparatus for coke plants |
| FR2225503A1 (de) * | 1973-04-13 | 1974-11-08 | Waagner Biro Ag | |
| FR2265840A1 (de) * | 1974-04-01 | 1975-10-24 | Buettner Schilde Haas Ag | |
| FR2378081A1 (fr) * | 1977-01-24 | 1978-08-18 | Charbonnages De France | Installation et procede de regulation du prechauffage de charbon a cokefier |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0064617A2 (de) * | 1981-05-13 | 1982-11-17 | Krupp Koppers GmbH | Verfahren und Vorrichtung zum Betrieb einer Kokereianlage |
| EP0064617A3 (en) * | 1981-05-13 | 1984-03-28 | Krupp-Koppers Gmbh | Process and apparatus for operating a coke oven plant |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2462467B1 (de) | 1982-06-18 |
| RO81874A (ro) | 1983-06-01 |
| DE3065524D1 (en) | 1983-12-15 |
| BR8004744A (pt) | 1981-02-10 |
| RO81874B (ro) | 1983-05-30 |
| FR2462467A1 (fr) | 1981-02-13 |
| ZA804256B (en) | 1981-06-24 |
| AU6045580A (en) | 1981-02-05 |
| EP0023455B1 (de) | 1983-11-09 |
| CA1161386A (fr) | 1984-01-31 |
| ES8107291A1 (es) | 1981-10-01 |
| AU536140B2 (en) | 1984-04-19 |
| ES493629A0 (es) | 1981-10-01 |
| US4338160A (en) | 1982-07-06 |
| JPS5653183A (en) | 1981-05-12 |
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