US3785934A - Water system for a larry car - Google Patents

Water system for a larry car Download PDF

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Publication number
US3785934A
US3785934A US00155820A US3785934DA US3785934A US 3785934 A US3785934 A US 3785934A US 00155820 A US00155820 A US 00155820A US 3785934D A US3785934D A US 3785934DA US 3785934 A US3785934 A US 3785934A
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United States
Prior art keywords
water
conduit
coke oven
larry car
larry
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.)
Expired - Lifetime
Application number
US00155820A
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English (en)
Inventor
C Clarke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beazer East Inc
Original Assignee
Koppers Co Inc
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Publication date
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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
    • C10B27/00—Arrangements for withdrawal of the distillation gases
    • C10B27/04—Arrangements for withdrawal of the distillation gases during the charging operation of the oven

Definitions

  • Such a system of tanks, pumps, and piping, including valves and other equipment usually associated with such a system is costly to install, costly to maintain, and adds considerable extra weight to the larry car that traverses along the length of the coke oven. Further, the time 'for charging under present conditions is determined by the capacity of the clean and dirty water tanks on the larry car.
  • The/present invention is directed to a water system for a larry car that is equipped with Water-scrubber type dust eliminators for removing dirt and particulate material from gases that evolve while charging a coke oven chamber; such system being less costly and more eicient than systems known from the prior art.
  • A'system for delivering clean water to water scrubbers on a larry car includes a conduit with headers at each ⁇ coke chamber that is connected to a source of pressurized water, and a Vconduit on the larry car that isV connected to gas scrubbers, while a exible length of hose is used to connect the larry car conduit to a header when a chamber is being charged with coal.
  • Such system also includes a dirtywat'er conduit mounted to the coke oven and a dirty water tank mounted to the larry car with a flexible length of hose that connects the larry car dirty water conduit to the dirty Water yheader on the coke oven.
  • FIG. 1 is a schematic simplified plan view of the top of the coke oven battery that incorporates a system in accordance with the present invention
  • FIG. 2 is a view along line II-II of FIG. 1;
  • FIG. 3 is a schematic plan view similar to that of FIG. 1, showing a modified system in accordance with the invention.
  • FIG. 1 illustrates schematically and in a simplified manner a plan view of the top of a conventional coke oven battery 11 that has, at the right hand end, a plurality of coal storage -bins 13, and a larry car 15 that moves along the top of the coke oven battery 11 on a pair of rails 17.
  • the larry car is equipped with, among things, a plurality of gas scrubbers 19 of the water type, and each gas scrubber 19 is provided with a drain line 21 leading to a common dirty water collecting tank 23.
  • the dirty water collecting tank 23 is conveniently suspended from the larry car 15 as shown in FIG. 2.
  • the dirty water collecting tank 23 is equipped with a sump pump 25, and, in some instances, with two sump pumps that are float actuated.
  • the pump discharge is carried in a conduit 27 that is provided with a length of flexible hose 29, having at its free end a suitable coupling 31.
  • Such coupling is preferably of the quick-connect and quick-disconnect type, with internal automatically operated valves.
  • One suitable coupling is marketed and sold under the trademark Kamvalock by the OPW Division of Dover Corporation, Cincinnati, Ohio, but other types of couplings may be used if preferred.
  • Such a coupling is provided with an automatic internal valve which opens when a coupling connection is securely made and which closes when the coupling connection is broken. Wherefore, no other valve on the pump discharge conduit 27 is required if such type of coupling is used.
  • a dirty water collecting header 33 that has a flushing connection 35 at one end, and that communicates at the other end, below the coal bins 13, with a discharge conduit leading to a collecting tank at a remote location.
  • the dirty water collecting header 33 is provided with a dirty water conduit 34 at each coke oven chamber, and each conduit 34 is fitted with a coupling 31 and a gate valve.
  • a clean water header or loop comprising a supply conduit 37 and a return conduit 39.
  • the supply conduit 37 is connected to clean water pumps 41 located at one end of the coke oven battery, and the return conduit 39 is connected to a clean water pumping tank 43, that also is connected to the pumps 41 by a conduit 45.
  • a suitable pressure control valve 47 is installed in the return line 39 to maintain the pressure in the header or loop at a preselected value.
  • the larry car 15 also carries a clean water conduit 49 that has branches 51 leading to each of the gas scrubbers 19 and that is provided with a length of exible hose and coupling 29, 31 like those mentioned previously.
  • a clean water conduit 53 ⁇ that includes a gate valve (not shown) and one of the couplings 31.
  • Each of the couplings 31 in the clean and dirty water systems 'on the larry car 15 may be provided with a microswitch so that the larry car travel mechanism is de-energized when each coupling 31 is connected to another conduit coupling.
  • the larry car remains immobile as long as the couplings 31 are mated, but when they are separated, the larry car becomes movable again for spotting at another oven or another location.
  • FIG. 3 illustrates a modification of the system of the invention, which modification includes a gas duct 61 disposed along one side of the coke oven battery; either on the coke side as shown or on the pusher side, as preferred.
  • This duct 61 is provided with a plurality of conduits 63 that are or may be similar to the conduits 53 described hereinbefore, that includes a gate or other valve and coupling 31.
  • the larry car of the modifica-tion is provided with one or more, two being shown, fans or pumps 65 which are are interconnected by a suitable conduit 617 and which are connectable to the conduits 63.
  • dirty gases that evolve from the coke oven chamber during charging are conductedl to the fans 65 and are moved by the fans through connecting conduit means into the gas duct 61. Thence, the gases flow to a gas scrubber station (not shown) located either on the coke oven battery or at a remote ground location.
  • a gas scrubber station (not shown) located either on the coke oven battery or at a remote ground location.
  • Such a gas scrubbing installation may be used by two or more batteries equipped with the system of the present invention.
  • suction fan or other a suitable fan device that will move the gases from the conduit on the coke oven battery into the gas scrubber equipment.
  • the pumps 41 continually move clean water from the clean water tank 43 through the supply header conduit 37 and through the return header conduit 39 back to the clean water supply tank 43.
  • Make-up water for the clean wateiL tank can be furnished from any available source of supply.
  • the pressure control valve 47 having been previously set to a selected pressure setting, maintains the pressure in the clean water loop above the pressure required to deliver water to the sprays in the larry car scrubbers 19.
  • the coupling 31 on the larry car clean water supply conduit is connected to a mating coupling on the clean water conduit 53 fixed to the supply conduit 37 at the respective coke oven chamber to be charged.
  • the larry car becomes immobile and water is available to the gas scrubbers 19. Water flow to the gas scrubbers is controlled by the larry car operator by means of suitable known solenoid control valves.
  • the coupling 31 on the larry car dirty header is connected to a mating coupling on the dirty water conduit 33.
  • the larry car becomes immobile and then dirty water may be collected in the dirty Water tank.
  • the dirty water produced in the gas scrubbers flows into the dirty tank and is removed simultaneously therefrom by the pump.
  • the dirty water is pumped from the tank through the dirty Water conduits to a receiving tank at ground level or otherwise mentioned hereinbefore.
  • the clean Water supply to the larry gas scrubbers is stopped by discon'- necting the clean Water coupling, and the dirty water discharge from the larry car is stopped by disconnecting the dirty Water coupling. After the clean water and the dirty water coupling are disconnected, the larry car becomes 4 ⁇ mobile again and the empty larry car then returns to the coal bins for another charge of coal.
  • said means for connecting said larry car conduit to said coke oven conduit is a quick-connect and quickdisconnect coupling.
  • said means for discharging dirty water from said tank includes (i) a drain conduit on saidcoke oven battery;
  • the apparatus of claim 1 including:
  • (e) means to conduct dirty water from said gas scrubber to said dirty water conduit while coal is'being charged into a respective coke oven chamber.
  • the apparatus of claim 2 including:

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Coke Industry (AREA)
US00155820A 1971-06-23 1971-06-23 Water system for a larry car Expired - Lifetime US3785934A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15582071A 1971-06-23 1971-06-23

Publications (1)

Publication Number Publication Date
US3785934A true US3785934A (en) 1974-01-15

Family

ID=22556929

Family Applications (1)

Application Number Title Priority Date Filing Date
US00155820A Expired - Lifetime US3785934A (en) 1971-06-23 1971-06-23 Water system for a larry car

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US (1) US3785934A (OSRAM)
FR (1) FR2143068B1 (OSRAM)

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Publication number Publication date
FR2143068A1 (OSRAM) 1973-02-02
FR2143068B1 (OSRAM) 1978-03-03

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