WO2009072998A1 - Installation et procédé de refroidissement à sec du coke - Google Patents

Installation et procédé de refroidissement à sec du coke Download PDF

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Publication number
WO2009072998A1
WO2009072998A1 PCT/UA2008/000068 UA2008000068W WO2009072998A1 WO 2009072998 A1 WO2009072998 A1 WO 2009072998A1 UA 2008000068 W UA2008000068 W UA 2008000068W WO 2009072998 A1 WO2009072998 A1 WO 2009072998A1
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WO
WIPO (PCT)
Prior art keywords
coke
cooling agent
circulation system
quenching
dry
Prior art date
Application number
PCT/UA2008/000068
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English (en)
Russian (ru)
Inventor
Yevheniy Alekseevich Danilin
Original Assignee
Yevheniy Alekseevich Danilin
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Filing date
Publication date
Application filed by Yevheniy Alekseevich Danilin filed Critical Yevheniy Alekseevich Danilin
Publication of WO2009072998A1 publication Critical patent/WO2009072998A1/fr

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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
    • C10B39/00—Cooling or quenching coke
    • C10B39/02—Dry cooling outside the oven

Definitions

  • the present group of inventions relates to the coke industry and can be used in dry quenching systems of coke (hereinafter CCTC).
  • Dry coke quenching methods and their implementation are based on cooling coke in a coke quenching chamber with a cooling agent that circulates in the cooling agent circulation system (see M. Teplitsky et al. Dry coke quenching, M., “Metallurgy”, 1971, p. 52-59).
  • the coke quenching chamber is a vertically located shaft lined with refractory masonry, into which coke is supplied by means of metered loading.
  • Coke quenching in the coke quenching chamber is carried out by passing a cooling agent through the coke layer, which is inert with respect to coke.
  • the cooling agent circulation system usually contains a coarse filter, usually made in the form of a dust collecting bin, a recovery boiler, which is a relatively tight chamber in which heat-exchanging surfaces are placed, to which the cooling agent gives off heat, and means for removing the excess volume of the cooling agent from the circulation system of the cooling agent.
  • a fine filter of the cooling agent made in the form of a cyclone, is installed, followed by a blower device, for example, a smoke exhauster.
  • part of the cooling agent circulation system is constantly under significant vacuum, which leads to suction of air into the cooling agent circulation system.
  • a candle enters the circulation system of the cooling agent as a means for removing the excess volume of the cooling agent that is formed in the circulation system of the cooling agent as a result of air suction.
  • the CCPF operates in a specific aerodynamic mode, namely, in the upper part of the coke quenching chamber, a pressure close to atmospheric pressure (the so-called aerodynamic zero) is maintained, which prevents the release of a cooling agent during coke loading into the coke quenching chamber, and also prevents into the cooling agent of air, the presence of which in the cooling agent leads to the burning of coke.
  • the aerodynamic zero in the upper part of the coke quenching chamber is maintained by draining the excess volume of the cooling agent into the atmosphere through the candle of the cooling agent circulation system.
  • the candle of the cooling agent circulation system is installed after the draft device.
  • the pressure value exceeds atmospheric by 200-300 kgf / m 2 , due to the high resistance of coke during the passage of the cooling agent through the coke, which leads to emissions of the cooling agent from the coke quenching chamber at the time of coke unloading a vehicle, such as a conveyor.
  • a means for continuous coke unloading is installed, in which a pressure value equal to the atmospheric “air shutter” is created.
  • the pressure value in the means for continuous unloading of coke, which is equal to atmospheric, is created using the recirculation circuit of the cooling agent and the circuit of the gas mixture.
  • the cooling agent recirculation loop is associated with a means for continuously discharging coke and a cooling agent circulation system, which allows to reduce the vacuum in the means for continuously discharging coke and to ensure a safe discharge of coke to the vehicle, and also to prevent emissions of a cooling agent into the atmosphere.
  • the determination of the amount of air suction in the circulation system of the cooling agent is carried out in the process of operation of the CCP.
  • the pressure sensor which is located in the upper part of the USTK, constantly monitors the pressure value in the upper part of the coke quenching chamber. With increasing pressure in the upper part of the coke quenching chamber, the excess volume of the cooling agent is removed from the cooling agent circulation system through the candle into the atmosphere. During the removal of the excess volume of the cooling agent through a candle into the atmosphere, the amount of cooling agent is measured using known means, for example, flowmeters. Then determine what excess volume of the cooling agent was discharged into the atmosphere per unit time (hour).
  • the obtained value is divided by the value of the amount of cooling agent, which was extinguished by coke quenching in the coke quenching chamber for the same period of time (hour), after which the air suction coefficient is obtained.
  • the effectiveness of the USTK is judged.
  • the coefficient of air suction in the CCP can be up to 15%. When the coefficient of air suction is equal to 15% or more, the unit is stopped for major repairs.
  • a dry coke extinguishing installation contains: a) a coke extinguishing chamber, b) a cooling agent circulation system including a recovery boiler and means for removing an excess volume of a cooling agent from a cooling agent circulation system, c) means for continuously discharging coke from a coke extinguishing chamber, d) a coolant recirculation loop linking the means for continuously discharging coke to the cooling agent circulation system.
  • the dry coke quenching method includes: a) dosed loading of coke into the coke quenching chamber, b) cooling of coke in the coke quenching chamber by a cooling agent that circulates in the cooling agent circulation system, c) supplying coke from the quenching quenching chamber to the means for continuous coke unloading with by simultaneously withdrawing a cooling agent from said cooling agent circulation system to a means for continuously discharging coke; d) cooling a cooling agent from a means for continuously discharging coke into a circulation system its agent through the recirculation loop cooling agent, e) removal of excess volume from the coolant circulation system of the cooling agent, f) discharge of coke from said means for continuously discharging the coke on the vehicle.
  • a design feature of the known CCCT and the method embodied therein is that the CCCT is equipped with an additional cooling agent recirculation circuit, which is connected to a means for continuously discharging coke and a cooling agent circulation system.
  • the cooling agent circulation system is provided with means for removing an excess volume of the cooling agent in the form of a candle. Maintaining aerodynamic zero in the upper part of the coke quenching chamber is carried out by draining into the atmosphere an excess volume of the cooling agent through the above-mentioned candle.
  • the disadvantage of the STCC and the method implemented therein is that the aerodynamic zero is maintained in the upper part of the coke quenching chamber due to the removal of an excess volume of the cooling agent into the atmosphere through a candle, which leads to environmental pollution.
  • the cooling agent contains about 6% carbon monoxide, whose calorific value is 3270 kcal / m 3 . So in The well-known STCC does not use chemical heat, which is contained in the cooling agent. The removal of the cooling agent to the atmosphere leads to inefficient utilization of the heat contained in the cooling agent and environmental pollution.
  • a dry coke quenching unit contains: a) a coke quenching chamber, b) a cooling agent circulation system, including a recovery boiler and means for removing an excess volume of cooling agent from a cooling agent circulation system, c) means for continuously discharging coke from a coke quenching chamber, d ) a coolant recirculation loop connecting a means for continuously discharging coke with a cooling agent circulation system.
  • the cooling agent circulation system contains a spark plug to vent excess coolant.
  • the dry coke quenching method includes: a) metered loading of coke into the coke quenching chamber, b) cooling of coke in the coke quenching chamber by a cooling agent that circulates in the cooling agent circulation system, c) supply of coke from the quenching quenching chamber to the means for continuous coke unloading with simultaneously withdrawing the cooling agent from said cooling agent circulation system to a means for continuously discharging coke, d) withdrawing the cooling agent from the means for continuously discharging coke into the cooling agent circulation system through the recirculation circuit of the cooling agent, e) discharging the excess volume of the cooling agent, f) discharging coke from the means for continuously discharging coke to the vehicle.
  • a feature of the well-known CCP and the method embodied in it is that the aerodynamic zero is maintained in the upper part of the coke quenching chamber by draining an excess volume of the cooling agent into the atmosphere through the candle of the cooling agent circulation system.
  • Another feature of USTK is that the excess coolant volume is removed from the cooling agent circulation system to the atmosphere in a volume equal to the amount of air suction.
  • the disadvantage of the CCP and the method implemented therein is that when the excess volume of the cooling agent is vented to the atmosphere through the candle of the cooling agent circulation system, the known CCP does not use the chemical heat contained in the cooling agent.
  • the removal of the excess volume of the cooling agent into the atmosphere leads to inefficient utilization of the chemical heat contained in the cooling agent, as well as to environmental pollution.
  • the main objective of this group of inventions is to improve the dry quenching of coke and the dry quenching of coke, which can increase the efficiency of utilization of heat contained in the coke.
  • Another objective of this group of inventions is to develop a dry coke quenching apparatus and a dry coke quenching method that can reduce environmental pollution by carbon monoxide.
  • the task of the group of inventions is achieved through the use of chemical heat contained in the cooling agent, which is removed from the means for the continuous discharge of coke and / or from the circulation system of the cooling agent to an additional recovery boiler, in which the cooling agent is subjected to heat treatment with subsequent recovery of waste heat gases formed as a result of heat treatment of the said cooling agent in an additional recovery boiler.
  • the task of the group of inventions is also achieved by improving the aerodynamic regime in dry quenching of coke, which allows to increase the organized suction of air into the means for continuous unloading of coke and additionally utilize the heat of coke.
  • a dry quenching coke extinguishing installation comprising: a) a coke quenching chamber, b) a cooling agent circulation system including a recovery boiler and means for draining an excess volume of the cooling agent from the cooling agent circulation system, c) means for continuous discharge of coke from the coke quenching chamber, d) a coolant recirculation loop connecting means for continuous discharge of coke with a cooling agent circulation system according to the claimed invention, e) SETTING coke dry quenching comprises an additional heat recovery boiler, which is associated with means for continuously discharging the coke and / or with a cooling agent circulation system.
  • the use of an additional recovery boiler provides an increase in the efficiency of utilization of heat contained in the coke due to the use of chemical heat contained in the cooling agent, which is subjected to heat treatment in an additional recovery boiler.
  • the additional waste heat boiler comprises a heat exchanger and a reactor containing at least one burner device and also equipped with a smoke exhauster.
  • the reactor of the additional recovery boiler is connected to the cooling agent circulation system, and the burner device of the additional recovery boiler is connected to the means for continuous unloading of coke.
  • the connection of at least one burner device of an additional recovery boiler with means for continuously discharging coke increases the efficiency of the burner device and provides an increase in the utilization of the cooling agent, as well as increases the efficiency of heat recovery of the exhaust gases, by supplying the heated gas mixture to the burner device.
  • the task is achieved by the fact that in the known method, comprising: a) dosed coke loading into the coke quenching chamber, b) coke cooling in the coke quenching chamber with a cooling agent that circulates in the cooling agent circulation system, c) supply coke from the coke quenching chamber into a means for continuously discharging coke with simultaneous removal of a cooling agent from said cooling agent circulation system into means for continuously discharging coke, d) withdrawing the cooling agent from the means for continuously discharging coke into the cooling agent circulation system through the recirculation circuit of the cooling agent, e) discharging the excess volume of the cooling agent, f) discharging coke from the means for continuously discharging coke to the vehicle according to the invention, g) remove the excess volume of the cooling agent from the circulation system of the cooling agent and / or means for continuously discharging coke into an additional recovery boiler, in which the excess the volume of the cooling agent is subjected to heat treatment with subsequent
  • the heat treatment of the cooling agent with the subsequent utilization of the heat of the exhaust gases provides an increase in the utilization of the heat contained in the coke through the use of chemical heat contained in the cooling agent, which is removed to an additional recovery boiler.
  • the cooling agent is enriched with fuel and / or air before being fed to an additional recovery boiler.
  • the enrichment of the cooling agent with fuel and / or air before being fed to the additional recovery boiler ensures the effective disinfection of the cooling agent in the additional recovery boiler, and also ensures the efficient use of chemical heat generated by burning carbon monoxide contained in the cooling agent.
  • the heat treatment of the cooling agent in an additional heat recovery boiler is carried out at a temperature of 700-1100 0 C.
  • the heat treatment of the cooling agent at a temperature of 700-1100 0 C ensures the efficient utilization of chemical heat contained in cooling agent, and also leads to a decrease in carbon monoxide (CO) in the exhaust gases.
  • dedusting of the cooling agent is carried out before being fed to an additional recovery boiler. This allows you to catch coke dust, the combustion of which requires a temperature above 2000 0 C, and allows you to increase the reliability of the additional recovery boiler.
  • FIG. 1 is a preferred layout of a dry coke quenching unit
  • FIG. 2 is a particular example of a dry quenching quenching unit.
  • FIG. 1 A preferred embodiment of an installation of dry extinguishing of coke is shown in FIG. 1, according to which the installation contains: a) a coke extinguishing chamber 1, b) a cooling agent circulation system 2 connecting the coke extinguishing chamber 1 with a recovery boiler 3, c) means for continuously discharging coke 4 from the coke extinguishing chamber 1, d) circuit cooling agent recirculation 5, linking means for the continuous discharge of coke 4 with the cooling agent circulation system 2.
  • the dry coke quenching unit also contains an additional recovery boiler 6, which is connected with a means for continuously discharging coke 4 and with a circulation system 2 of the cooling agent.
  • An additional waste heat boiler 6 is equipped with a 7- ⁇ smoke exhauster.
  • the recovery boiler 6 includes a heat exchanger 8 and a reactor 9 containing at least one burner device 10.
  • the reactor 9 of the additional recovery boiler 6 is connected to the circulation system 2 of the cooling agent by a pipe H 1 , which is means for draining the excess volume of the cooling agent from the circulation system 2 of the cooling agent.
  • the burner device 10 of the additional waste heat boiler 6 is connected with a means for the continuous unloading of coke 4 by a pipe 11 2 on which a dust cleaner 12, a smoke exhauster 7 2 and a gas mixture supply regulator 13g to the burner device 10 are mounted.
  • the pipeline 11 1 is equipped with a regulator 1S 1 for supplying a cooling agent from the circulation system 2 of the cooling agent to the reactor 9 of the additional recovery boiler 6.
  • the circulation system 2 of the cooling agent contains a smoke exhauster 7 3
  • the recirculation circuit 5 of the cooling agent is equipped with a regulator 133 for regulating the supply of the cooling agent from means for the continuous discharge of coke 4 into the circulation system 2 of the cooling agent.
  • a pressure sensor 14 is installed in the upper part of the coke quenching chamber 1, and a vehicle 15 is placed under the means for continuous unloading of coke 4 to remove chilled coke from the working zone of the CCP.
  • the additional waste heat boiler 6 is provided with a flue 16 installed after the smoke exhauster 7i to remove gases leaving the additional heat recovery boiler 6.
  • the operation of the inventive installation of dry quenching of coke is as follows. Coke obtained by coking in coke ovens using loaders (not shown in the drawings) is loaded into the coke quenching chamber 1. In the coke quenching chamber 1, dry quenching is carried out by passing a cooling agent through the coke layer. The cooling agent is circulated in the coke quenching chamber 1 by means of the cooling agent circulation system 2, which is equipped with a waste heat boiler 3 and a smoke exhauster 7h. Coke, due to the action of gravitational forces, from the quenching chamber of coke 1 enters the means for continuous unloading of coke 4.
  • the cooling agent Simultaneously with the specified movement of coke in the means for continuous unloading of coke 4 enters the cooling agent from the circulation system 2 of the cooling agent. From the means for continuous unloading of coke 4, the cooling agent is discharged along the recirculation circuit 5 of the cooling agent into the circulation system 2 of the cooling agent. The amount of cooling agent discharged from the means for continuously discharging coke 4 into the cooling agent circulation system 2 is controlled by the regulator 13 3 for supplying the cooling agent in accordance with the pressure in the upper part of the coke quenching chamber 1 detected by the pressure sensor 14.
  • an excess volume of the cooling agent is removed from the means for continuously discharging coke 4 into the burner device 10 of the additional recovery boiler 6 through the pipe 11 g.
  • the excess volume of the cooling agent is removed to the burner device 10, the excess volume of the cooling agent is mixed with the air that enters means for the continuous discharge of coke 4 due to suction of air from the atmosphere.
  • the regulation of the excess volume of the cooling agent, which is removed from the means for the continuous discharge of coke 4 into the burner device 10 of the additional recovery boiler 6, is carried out using a smoke exhauster 7g and a regulator 13 2 for supplying a gas mixture containing a cooling agent. Also, when an excess volume of the cooling agent is removed from the means for continuously discharging coke 4 into the burner device 10, the cooling agent is dedusted by means of a dust cleaner 12, after which the gas mixture containing the cooling agent and enriched with fuel (for example, coke oven gas) is supplied to the burner device 10 additional recovery boiler 6.
  • fuel for example, coke oven gas
  • an excess volume of the cooling agent is removed from the circulation system 2 of the cooling agent to the reactor 9 of the additional recovery boiler 6 through the pipe 11 1 .
  • the regulation of the amount of cooling agent supplied to the reactor 9 from the circulation system 2 the cooling agent is carried out by the regulator 13i supply of the cooling agent.
  • an excess volume of the cooling agent is heat treated, which is removed from the circulation system • 2 of the cooling agent and / or from the means for continuous unloading of coke 4, resulting in the formation of exhaust gases that give off heat to the heat exchanger 8, after which the exhaust the gases are discharged from the additional recovery boiler 6 with the help of a smoke exhaust fan 7i to the atmosphere through the gas duct 16.
  • the coke, which has been extinguished, from the means for the continuous unloading of coke 4 enters the vehicle 15 and is removed from the working zone of the CCCP.
  • an additional waste heat boiler 6 is connected with a means for continuous unloading of coke 4 by means of a pipe 11 3 -
  • a regulator-distributor 13 4 is mounted on the pipe 11 3 , which provides regulation of the gas mixture supply to both the reactor 9 and the burner 10 of the additional recovery boiler 6. This allows you to distribute the volume of the gas mixture supplied to the additional recovery boiler 6 in a ratio that ensures maximum efficiency of the STCC.
  • the removal of the excess volume of the cooling agent is carried out through the means for the continuous unloading of coke 4 into the additional recovery boiler 6, and the outlet is regulated by the regulator 13z.
  • productivity was 52 t / h coke.
  • the pressure value in the coke quenching chamber 1 was controlled using a pressure sensor 14 located at the top of the coke quenching chamber 1.
  • the coefficient of air suction into the cooling agent circulation system 2 was 6.08%.
  • the claimed method of dry quenching of coke the following was carried out: a) metered loading of coke into the quenching chamber of coke 1 as coke ovens were unloaded (not shown in the drawings), in which coke was obtained by coking, b) cooling of coke in the quenching quenching chamber 1 by a cooling agent, for which 74000 m 3 / h of cooling agent was supplied through the cooling agent circulation system 2 to the coke quenching chamber 1, c) as coke with a temperature of 250 ° C entered from the coke quenching chamber 1 into the means for continuous unloading of coke 4, 7500 m 3 was withdrawn / h cooling agent with a temperature of 170 ° C from the circuit 2 to the means for continuously discharging coke 4, d) cooling agent with a temperature of 170 ° C in a volume of 7,500 m 3 / h received as a result of contact with coke having temperature 250 0 C, heated to a temperature of 220 0 C.
  • the cooling agent was discharged in a volume of 7000 m 3 / h from the means for continuous unloading of coke 4 along the recirculation loop 5 of the cooling agent into the circulation system 2 of the cooling agent, e) also the parts of the hut exact amount of cooling agent temperature of 220 0 C in an amount of 500 m 3 / h of the means for continuously discharging coke from the conduit 11 4 2 additional burner device 10, the recovery boiler 6.
  • the cooling agent was mixed with air, which in a volume of 1300 m 3 / h was supplied to the means for continuous discharge of coke 4.
  • the cooling agent was subjected to thermal treatment work at a temperature of 1000 0 C, s subsequent heat recovery of the exhaust gases using the heat exchanger 8 of the additional recovery boiler 6, f) also removed 4000 m 3 / h of the excess volume of the cooling agent with a temperature of 170 0 C from the circulation system 2 of the cooling agent through line 111 to the reactor 9 of the additional recovery boiler b wherein the cooling agent is thermally treated at a temperature of 1000 0 C.
  • the use of the claimed group of inventions increases the efficiency of the CCCT due to the use of chemical heat obtained by burning carbon monoxide (CO) contained in the cooling agent, which improves the efficiency of utilization of the heat contained in the coke and reduces pollution the environment.
  • CO carbon monoxide

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Coke Industry (AREA)

Abstract

La présente invention peut être utilisée dans l'industrie de cokéfaction à sous-produits. Dans une chambre de refroidissement du coke (1), le coke est refroidi au moyen d'un agent de refroidissement circulant dans un système de circulation correspondant (2). Le coke refroidi est envoyé depuis la chambre de refroidissement (1) vers un dispositif de déchargement en continu du coke (4), l'agent de refroidissement étant simultanément retiré du système de circulation (2). L'agent de refroidissement est dévié du dispositif de déchargement en continu du coke (4) pour être dirigé vers le système de circulation de l'agent de refroidissement (2) via un circuit de recirculation de l'agent de refroidissement (5). Le coke est déchargé du dispositif correspondant pour être placé dans un système de transport (15). Le volume excédentaire de l'agent de refroidissement est dévié du système de circulation (2) et/ou du dispositif de déchargement en continu du coke (4) pour être dirigé vers une chaudière de récupération de chaleur additionnelle (6) dans laquelle l'agent de refroidissement est traité thermiquement et où la chaleur du gaz d'échappement est récupérée. Cette invention permet d'accroître le rendement de la récupération de chaleur du coke et de réduire les rejets d'oxyde de carbone dans l'atmosphère.
PCT/UA2008/000068 2007-12-07 2008-11-14 Installation et procédé de refroidissement à sec du coke WO2009072998A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
UAA200713710A UA83983C2 (ru) 2007-12-07 2007-12-07 Установка и способ сухого гашения кокса
UAA200713710 2007-12-07

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WO2009072998A1 true WO2009072998A1 (fr) 2009-06-11

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PCT/UA2008/000068 WO2009072998A1 (fr) 2007-12-07 2008-11-14 Installation et procédé de refroidissement à sec du coke

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UA (1) UA83983C2 (fr)
WO (1) WO2009072998A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2448144C2 (ru) * 2010-06-11 2012-04-20 Открытое акционерное общество "Кокс" Установка сухого тушения кокса
UA113800C2 (xx) * 2015-10-08 2017-03-10 Спосіб визначення питомої витрати циркулюючих газів установки сухого гасіння коксу та пристрій для його здійснення (варіанти)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4141795A (en) * 1976-07-06 1979-02-27 Nippon Kokan Kabushiki Kaisha Dry type method for quenching coke
JPS60260686A (ja) * 1984-06-07 1985-12-23 Nippon Steel Corp コ−クス乾式消火設備における給水加熱装置
SU1600329A1 (ru) * 1985-12-23 1992-02-07 Производственно-Техническое Предприятие Треста "Укрэнергочермет" Установка сухого тушени кокса
RU2111230C1 (ru) * 1994-04-05 1998-05-20 Государственный институт по проектированию предприятий коксохимической промышленности "Гипрококс" Установка сухого тушения кокса
JP2007039608A (ja) * 2005-08-05 2007-02-15 Sumitomo Metal Ind Ltd コークス乾式消火設備の循環冷却ガス利用方法および利用設備

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4141795A (en) * 1976-07-06 1979-02-27 Nippon Kokan Kabushiki Kaisha Dry type method for quenching coke
JPS60260686A (ja) * 1984-06-07 1985-12-23 Nippon Steel Corp コ−クス乾式消火設備における給水加熱装置
SU1600329A1 (ru) * 1985-12-23 1992-02-07 Производственно-Техническое Предприятие Треста "Укрэнергочермет" Установка сухого тушени кокса
RU2111230C1 (ru) * 1994-04-05 1998-05-20 Государственный институт по проектированию предприятий коксохимической промышленности "Гипрококс" Установка сухого тушения кокса
JP2007039608A (ja) * 2005-08-05 2007-02-15 Sumitomo Metal Ind Ltd コークス乾式消火設備の循環冷却ガス利用方法および利用設備

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RU2008128018A (ru) 2010-01-20
RU2388789C2 (ru) 2010-05-10
UA83983C2 (ru) 2008-08-26

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