US3675797A - Charging car for coke ovens - Google Patents

Charging car for coke ovens Download PDF

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Publication number
US3675797A
US3675797A US61166A US3675797DA US3675797A US 3675797 A US3675797 A US 3675797A US 61166 A US61166 A US 61166A US 3675797D A US3675797D A US 3675797DA US 3675797 A US3675797 A US 3675797A
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United States
Prior art keywords
feed pipe
charge hole
coal
bin
charging
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Expired - Lifetime
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US61166A
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English (en)
Inventor
Erich E W Pries
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.)
Dr C Otto and Co GmbH
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Dr C Otto and Co GmbH
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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
    • C10B31/00—Charging devices
    • C10B31/02—Charging devices for charging vertically
    • C10B31/04—Charging devices for charging vertically coke ovens with horizontal chambers

Definitions

  • coal to be coked is discharged from a number of hoppers carried on a charging car into a corresponding number of holes or openings in the oven roof, from whence the coal falls down into the heated oven.
  • the charging car travels on rails mounted on the roofs of adjacent ovens such that it can travel from a storage area where coal is charged into the bins carried on the charging car to the desired set of holes or openings in the top of a selected oven.
  • the charge holes in the oven roof are closed by covers to prevent the escape of smoke, dust and the gases which are distilled to produce coal by-products.
  • feed pipes connected to the bottoms of the coal bins on the charging car are placed over the openings in the oven roof after removal of the covers. After charging the oven with coal, the feed pipes are then raised, and the charge holes are again closed by the covers.
  • charging gases and dust which can cause pollution of the air escape.
  • special exhaust and cleaning systems have been provided for collecting the gases and dust which escape while the covers are removed; however such systems are relatively expensive and only partially remedy the charging gas problem.
  • the present invention seeks to provide a new and improved charging car for a coke oven which facilitates charging of coal into the coke oven without permitting pollution of the air, while at the same time being relatively inexpensive and simple.
  • Another object of the invention is to provide a charging car for coke ovens of the type described wherein a feed pipe is placed over a charging hole in the top of a coke oven; a charging hole cover is removed within the feed pipe; coal is charged into the oven; and the cover, still within the feed pipe, is then replaced. Sufficient coal is left in the charging car above the feed pipe at the completion of the charging operation to prevent the escape of pollutants into the air during the time that the charging cover is being replaced.
  • a charging car for coke ovens having feed pipes which are placed over the oven roof and provided with lower sleeves which can be moved downwardly to surround the seat of the charge hole cover so that a gas-tight closure is formed.
  • the gripping device comprises an electromagnet which engages and is attracted to the charge hole cover formed from a magnetically permeable material.
  • the charging car is moved over a charging hole and the sleeve on the lower end of the feed pipe is lowered such that it surrounds the charge hole cover.
  • the aforesaid gripping device is caused to move downwardly within the feed pipe until it engages the charge hole cover, whereupon the electromagnet is energized and the gripping device elevated to remove the charge hole cover from the charge opening in the top of the oven.
  • the charge hole is completely surrounded by the feed pipe and the sleeve at the bottom thereof; and the discharge of pollutants into the air is prevented by the coal in a bin carried on the charginG car.
  • the gripping device which now carries the charge hole cover, is elevated in the feed pipe to a point where it will not interfere with the discharge of coal from the bin into the oven. At this point, the coal is discharged from the bin and through the feed pipe and the charge opening into the coke oven. The feed of coal into the oven, however, is stopped before all of the coal is discharged from the bin to prevent the discharge of pollutants through the bin. Finally, with the discharge of coal stopped and the feed pipe still in position above the charging hole, the gripping device and the charge hole cover are lowered within the feed pipe to the point where the charge hole cover is again seated within the charging hole. The foregoing process takes place simultaneously at all the charge holes of an oven chamber. When all of the charge hole covers have been replaced, the sleeves of all of the feed pipes can be raised, and the charging car moved to another position.
  • the bin is closed by a bell which can be raised and lowered with respect to the feed pipe.
  • a vertically reciprocal rod which carries the gripping device is directed through the bell in such a manner that the gripping device rests on the underside of the bell in its highest position.
  • the bell is lowered into the closing position.
  • the charge hole cover is lowered by means of the gripping device and the charge hole is closed.
  • the gripping device is raised as is the sleeve of the feed pipe in order to complete the process.
  • a discharge funnel which can be raised and lowered is provided within each feed pipe according to another characteristic of the invention. In its lowered position, it assumes the shape of a truncated cone which tapers downwardly and rests with its lower edge' on the periphery of the charge hole. In its raised position, it must expand, which is necessary for the vertical path of the charge hole cover which is grasped by the gripping device.
  • the discharge funnel is designed as the jacket of a truncated cone and consists of several sections which are divided by vertical spaces connected to each other only at the upper circular edge thereof.
  • Means must be provided to insure that the sections of the discharge funnel which hang down vertically in the raised state come into a sloping position when they assume the shape of a truncated cone.
  • guide elements are arranged on the inner wall of the feed pipe and project inwardly in the form of wedges such that when the sections of the discharge funnel move downwardly, they also move inwardly to form a truncated cone.
  • FIG. 1 is an elevational view, partly in section, of a coke oven charging car which can be moved back and forth on tracks mounted on a coke oven roof. A single charge hole and feed pipe are shown in FIG. 1;
  • FIG. 2 is an elevational view, partly in section, of certain details of the apparatus of FIG. 1 showing the feed pipe and its associated parts;
  • FIG. 3 is a vertical section corresponding to FIG. 2 and showing a charging car provided with a vibrating trough which conveys coal from a bin to the feed pipe;
  • FIG. 4 is an elevational view similar to FIGS. 2 and 3 but showing an embodiment of the invention in which the bin of the charging car is sealed by a bell during raising of the charge hole cover.
  • a coke oven roof 16 is shown.
  • a charging hole 17 through which coal is charged into the coke oven chamber.
  • Each oven chamber has several such charge holes which are located one behind the other transversely across the chamber. Only one charge hole 17 is shown in the drawings, it being understood that there are other charge holes aligned therewith.
  • each charge hole 17 is closed by a charge hole cover which rests on a beveled surface 7 of a metal charge hole frame 8.
  • the charge hole cover is shown in its seated position in broken lines and identified as 5a.
  • the charging car is represented in overall height in FIG. 1 and runs on wheeled trucks 25 and 26 movable over tracks 27 laid on the oven roof 16.
  • a number of bins 1 which correspond to the number of charge holes 17 for each oven is provided on each charging car.
  • the bins 1 are provided with outlets from which coal is directed into a feed pipe 2.
  • At the bottom of each feed pipe 2 is a cylindrical sleeve 3 which can be raised or lowered in a manner hereinafter described.
  • Each sleeve is provided with an annular flange at its lower edge which rests on the charge hole frame 8 when lowered. In all figures, the sleeve 3 is shown in its lowered state.
  • Brackets 28 are secured to the sides of the sleeve 3 and are pivotally connected to rods 29.
  • the upper ends of the rods 29, in turn, are connected to levers 30 which are controlled by a gear, not shown, at their inner ends. This gear, in turn, is rotated to rotate levers'30 and raise or lower the sleeve 3 by means of a rod 31 pivotally connected to the charging car at 32.
  • a gripping device 4 which is preferably an electromagnet.
  • the gripping device 4 in turn, can be raised and lowered within the feed pipe 2 by means of a vertical rod 24.
  • the rod 24 passes between friction rollers 33 which are provided with a drive, not shown, and which act on the rod 24 to raise or lower it, together with the gripping device 4.
  • the gripping device 4 being an electromagnet, can be energized by electrical circuitry, not shown, when in its lowermost position to become engaged with the charge hole cover 5. Thereafter, when the rod 24 is elevated by the friction rollers 33, the gripping device 4 will carry the charge hole cover upwardly therewith.
  • the conveying of coal into the outlet 15 and the feed pipe 2 is accomplished in the arrangement of FIG. 2 by means of a turntable 22 driven by suitable rotary drive means.
  • the conveying of coal takes place by means of a vibrating trough 23, all in ac cordance with usual practice.
  • the bin 1 which contains coal to be charged into the oven has a bottom in the form of a truncated cone. The opening at the bottom of this cone can be closed by means of a conical hell or hood, generally indicated by the reference numeral 14 and hereinafter described in greater detail.
  • a discharge funnel 6 is provided within the feed pipe 2.
  • the solid lines show the funnel 6 in its lowered position while the broken lines, identified by the reference numeral 6a, show it in its elevated position.
  • Each of these funnels 6 consists of four vertical parts 21 which are separated from each other by vertical spaces 18 tapered outwardly as they progress downwardly.
  • the parts 21 In the lowered position shown in full ines, the parts 21 form a truncated cone with the spaces 18 closed and the lower edge 20 of the cone resting on the beveled sealing surface 7 of the charge hole frame 8.
  • the vertical parts 21 hang down loosely.
  • An elevating device is connected to the upper edge 19 of the discharge funnel 6 for the purpose of moving the vertical parts 21 upwardly or downwardly.
  • Sealing elements 12 are provided between the upper edge 19 of the vertical parts 21 and the inner wall of sleeve 3. They insure that the falling coal will not drop into the circular space 9 which remains between the feed pipe 2 and the discharge funnel 6.
  • guide elements which are designed as wedges 10 are provided on the inner wall of the feed pipe 2. These act to move the parts 21 of the discharge funnel 6 inwardly during lowering whereby they become interlocked to form a truncated cone in the lowermost position with the lower edge 20 resting on the sloping face 7 of the sealing frame 8.
  • the inward motion of the parts 21 is accomplished by means of pressure pins 11 which are pressed inwardly, for example, by means of compressed air cylinders or springs which force parts 21 of the discharge funnel 6 into the necessary sloping position.
  • Their actuation preferably occurs automatically in connection with the lowering motion of the discharge funnel, the actuating and control means being absent from the present disclosure but are within the skill of the art.
  • a rod 24 which carries at its lower end the gripping device 4 passes through a coneshaped bell 14. As can be seen, the gripping device 4 engages the underside of the hood 14 in the raised position.
  • Sensing elements which sense if the level of the coal in the charging bin 1 drops below a predetermined level are identified by the reference numeral 13 in FIGS. 2-4.
  • the sensing elements 13, in turn, are connected to electrical circuitry which, in turn, controls lowering of the bell 14 in the embodiment of FIG. 4, stopping of the turntable 22 in the embodiment of FIG. 2 or stopping of the vibrating trough 23 in FIG. 3.
  • the sleeve 3 for each feed pipe 2 is lowered first. Then the charge hole cover 5 is raised by means of the gripping element 4 and the discharge funnel 6 is lowered. Now either the mechanical conveying device (turntable 22 of FIG. 2 or vibrating trough 23 of FIG. 3) is actuated; or in the embodiment of FIG. 4, the bell 14 is raised. This permits coal to be charged into the oven. After the completion of charging, the escape of gases into the atmosphere is prevented initially by the coal which is still in the bin 1. That is, when the level of the coal reaches the sensing elements 13, the charging process is stopped. In the embodiment of FIGS. 2 and 3, turntable 22 or vibrating trough 23 is stopped. Thereafter, the discharge funnel 6 is elevated, the gripping element 4 is lowered onto the charge hole cover by means of the rod 24, and the electromagnet on the gripping element deenergized to permit the charge hole cover 5 to remain in place.
  • suction devices for charging gases can also be placed on the charging car itself Such suction devices are indicated in FIG. 1 by a suction tube 35 which is connected to a circular area 34 surrounding feed pipe 2. One or several of these suction tubes 35 are connected to a blower 36 and filter 37. From the filter 37, the gases are discharged into the atmosphere.
  • a charging car for coke ovens or the like of the type in which granular material in a bin carried on the charging car is discharged into a coke oven through a charge hole in the oven roof; the combination of a feed pipe for conveying coal from said bin to the charge hole, a sleeve element surrounding said feed pipe and reciprocable'from an upper position where it is disengaged from the oven roof to a lower position where it engages an area of the roof around the charge hole, said charge hole having a beveled surface extending around its upper periphery, a gripping element for engaging and elevating a charge hole cover normally positioned over said charge hole and resting on said beveled surface, means adapted to move said gripping element downwardly through said feed pipe and sleeve to engage said charge hole cover and elevate it within the feed pipe to a point to permit coal from said bin to fall through said feed pipe into said charge hole, and a discharge funnel reciprocable within said feed pipe and having a lower edge which can be moved into abutment with said be
  • said bin is directly above said feed pipe and is provided with a funnel-shaped bot tom which discharges into the feed pipe, and including an inverted cone-shaped bell within the bin and movable from a lower position where it closes an opening between said bin and said feed pipe to an upper position where it permits granular material to fall from the bin into the feed pipe, said gripping element being carried on a rod which passes through said cone-shaped bell such that when the rod and gripping device are elevated the gripping device will be beneath said bell.
  • said gripping element comprises an electromagnet and said charge hole cover is formed from magnetically permeable material whereby the electromagnet, upon engaging said charge hole cover, can be energized to attract the charge hole cover or deenergized to release it.

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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)
  • Basic Packing Technique (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
US61166A 1970-02-26 1970-08-05 Charging car for coke ovens Expired - Lifetime US3675797A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702009017 DE2009017B2 (de) 1970-02-26 1970-02-26 Kohlefuellwagen fuer verkokungsoefen

Publications (1)

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US3675797A true US3675797A (en) 1972-07-11

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US61166A Expired - Lifetime US3675797A (en) 1970-02-26 1970-08-05 Charging car for coke ovens

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US (1) US3675797A (enrdf_load_stackoverflow)
DE (1) DE2009017B2 (enrdf_load_stackoverflow)
FR (1) FR2079129A5 (enrdf_load_stackoverflow)
GB (1) GB1303548A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3945515A (en) * 1973-07-18 1976-03-23 Bergwerksverband Gmbh Arrangement for preventing the escape of dust and gas during the filling of a furnace
US4024024A (en) * 1975-04-10 1977-05-17 Firma Carl Still Hopper for predried fine coal carried on hopper trucks for coking batteries
US4030983A (en) * 1975-04-04 1977-06-21 Bergwerksverband Gmbh Method of restricting dust development when feeding coal into coke ovens
US4072239A (en) * 1976-02-10 1978-02-07 Bergwerksverband Gmbh Arrangement for charging a furnace in a gastight and dust-tight manner
US8393281B1 (en) * 2008-02-27 2013-03-12 University Of Mississippi Particle feeder

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2142707C3 (de) * 1971-08-26 1982-04-22 Carl Still Gmbh & Co Kg, 4350 Recklinghausen Wagen mit Vorrichtungen zum Ergreifen, Abheben, Ausschwenken, Zurückschwenken und Wiedereinsetzen der Füllschachtdeckel
GB2212893A (en) * 1987-11-26 1989-08-02 British Steel Plc Coke oven charging apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2075931A (en) * 1936-01-06 1937-04-06 Read Machinery Company Inc Dust-return hopper
US2234951A (en) * 1938-04-21 1941-03-18 Bemis Bro Bag Co Packaging machine
US2981423A (en) * 1957-12-16 1961-04-25 Woodall Duckham Constr Co Ltd Charging horizontal coke ovens
US3036720A (en) * 1959-01-27 1962-05-29 Koppers Co Inc Horizontal coke-oven charging apparatus
GB971533A (enrdf_load_stackoverflow) * 1962-10-24 1964-09-30 Heinrich Koppers Gesellschaft Mit Beschrankter Haftung
US3368948A (en) * 1963-05-06 1968-02-13 Houilleres Bassin Du Nord Apparatus for charging coke ovens

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2075931A (en) * 1936-01-06 1937-04-06 Read Machinery Company Inc Dust-return hopper
US2234951A (en) * 1938-04-21 1941-03-18 Bemis Bro Bag Co Packaging machine
US2981423A (en) * 1957-12-16 1961-04-25 Woodall Duckham Constr Co Ltd Charging horizontal coke ovens
US3036720A (en) * 1959-01-27 1962-05-29 Koppers Co Inc Horizontal coke-oven charging apparatus
GB971533A (enrdf_load_stackoverflow) * 1962-10-24 1964-09-30 Heinrich Koppers Gesellschaft Mit Beschrankter Haftung
US3368948A (en) * 1963-05-06 1968-02-13 Houilleres Bassin Du Nord Apparatus for charging coke ovens

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3945515A (en) * 1973-07-18 1976-03-23 Bergwerksverband Gmbh Arrangement for preventing the escape of dust and gas during the filling of a furnace
US4030983A (en) * 1975-04-04 1977-06-21 Bergwerksverband Gmbh Method of restricting dust development when feeding coal into coke ovens
US4024024A (en) * 1975-04-10 1977-05-17 Firma Carl Still Hopper for predried fine coal carried on hopper trucks for coking batteries
US4072239A (en) * 1976-02-10 1978-02-07 Bergwerksverband Gmbh Arrangement for charging a furnace in a gastight and dust-tight manner
US8393281B1 (en) * 2008-02-27 2013-03-12 University Of Mississippi Particle feeder

Also Published As

Publication number Publication date
DE2009017B2 (de) 1976-04-08
GB1303548A (enrdf_load_stackoverflow) 1973-01-17
FR2079129A5 (enrdf_load_stackoverflow) 1971-11-05
DE2009017A1 (de) 1971-09-09

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