CA1145705A - Coal flow rate control for coke oven charging - Google Patents
Coal flow rate control for coke oven chargingInfo
- Publication number
- CA1145705A CA1145705A CA000308725A CA308725A CA1145705A CA 1145705 A CA1145705 A CA 1145705A CA 000308725 A CA000308725 A CA 000308725A CA 308725 A CA308725 A CA 308725A CA 1145705 A CA1145705 A CA 1145705A
- Authority
- CA
- Canada
- Prior art keywords
- coal
- discharge
- hopper
- coke oven
- halt
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/54—Gates or closures
- B65D90/58—Gates or closures having closure members sliding in the plane of the opening
- B65D90/60—Gates or closures having closure members sliding in the plane of the opening and having one or more openings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/16—Devices for feeding articles or materials to conveyors for feeding materials in bulk
- B65G47/18—Arrangements or applications of hoppers or chutes
- B65G47/20—Arrangements or applications of hoppers or chutes the hoppers or chutes being movable
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
- Basic Packing Technique (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
On a horizontal coke oven battery larry car, a sliding gate control is mounted below each of the funnel-shaped bottoms of the coal hoppers but above the drop sleeve assembly. The sliding gate control is characterized by a horizontal plate con-taining a plurality of circular apertures, each of a different diameter, in addition to a solid portion of the plate sufficient in area to curtail flow from the exit orifice of the coal hoppers.
Each of the circular apertures is sized, in relation to the flow characteristics of varying coal consistencies, such that when coal of any usable consistency is contained in a coal hopper, the aperture related to that coal consistency is centered beneath the exit orifice of that coal hopper causing the coal to flow into the drop sleeve at a rate which is within a predetermined allowable range of flow rates.
On a horizontal coke oven battery larry car, a sliding gate control is mounted below each of the funnel-shaped bottoms of the coal hoppers but above the drop sleeve assembly. The sliding gate control is characterized by a horizontal plate con-taining a plurality of circular apertures, each of a different diameter, in addition to a solid portion of the plate sufficient in area to curtail flow from the exit orifice of the coal hoppers.
Each of the circular apertures is sized, in relation to the flow characteristics of varying coal consistencies, such that when coal of any usable consistency is contained in a coal hopper, the aperture related to that coal consistency is centered beneath the exit orifice of that coal hopper causing the coal to flow into the drop sleeve at a rate which is within a predetermined allowable range of flow rates.
Description
11~57~5 The present invention relates to the making of coke from coal and, more particularly, to the top charging of hori-zontal coke oven batteries by means of a larry car mounted on top of the coke oven battery.
The top charging of horizontal coke oven batteries is commonly accomplished by a larry car movable on rails on top of the battery. The larry car is comprised of multiple hoppers, the number corresponding to the number of charging holes in the tops of each of the coke oven chambers which, together, make up the battery. A typical arrangement of a larry car in relation to a coke oven battery is depicted in the drawings of U.S. Patent No. 1,900,753. Coal is loaded into the hoppers. Then the larry car traverses the coke oven battery and is positioned over the charging holes of the particular oven to be charged. The bottoms of the hoppers are commonly frusto-conical in shape, tappering down to an annular orifice at their bottom ends which is generally equivalent in dimension to the diameters of the charging holes.
Some means is required to contain the coal in the larry car hoppers until the hoppers are in position above the designated oven to be charged and the charging hole covers have been removed.
In practice, generally a slide-gate plate is used. Such a gate is illustrated in German Patentschrift No. 848,643. A somewhat different positioning of such a gate is illustrated in U.S.
Patent No. 3,576,263. Additional means for containing coal in the larry car hoppers have been developed, but are not commonly used as they present practical, economic and operational problems.
Ideally, a coke oven will be charged with dry, preheated coal. However, actual practice is to charge the coke ovens with whatever coking coal is available at the given moment, rather than shutting down the ovens to prepare coal for charging. Thus, coal ,,.
~.
1 1457~5 at ambient temperature, both wet and dry, is typically charged into coke ovens. Such a situation is taken in account in the design of modern coke ovens, and means are provided therein to adjust the coke making operation to compensate for the different initial consistencies of the coal.
One problem that has developed in ovens designed to operate with wet, dry or preheated coals is that the flow char-acteristics of these different coal consistencies differ to a significant degree. Because it is beneficial to charge an oven within a preset time interval, it is desirable to provide means for controlling the flow rate of different consistencies of coal.
The flow rate of wet coal is slower and more sluggish than for dry coal; thus a larger opening is required to flow a given volume of coal into an oven within the preset time interval. But such a large opening creates problems when dry and/or preheated coal is charged. Since the flow pattern of dry and/or preheated coal is more rigid and more expansive, charging such coal consistencies through an opening ideally sized for wet coal causes uncontrolled flow resulting in irregular over-filling, and much dust and part-iculate matter suspended in the elevated temperature atmosphere - within the oven. This suspended matter tends to be carried over into the ascension pipes where it buiIds up and rapidly clogs the ascension pipes. The result is frequent downtime to clean the as-cension pipes. Further, the uncontrolled flow causes increased turbulance within the coke oven resulting in the unnecessary es-cape of polutants as back pressure through the charging holes.
Attempts have been made to use screw feeders and con-veyor systems to regulate the flow of coal. These have proved unsatisfactory due to the tendency of coal to flow more like a liquid than a solid. The only practical method employed to date has been to simply size the hopper outlet and the charging hole 57~5 properly to gain the desired flow rate of dry and/or preheated coal and attempt to control the use of wet coal. Alternately, a separate larry car with hoppers containing larger orifices for wet coal has been proposed to overcome the problem. The cost of such a solution is untenable.
Thus, some means is needed to provide and control the flow rates of both wet coal and dry and/or preheated coal inter-changeably on a given coke oven battery and it is to fulfilling this need that th~ present invention is addressed.
The present invention is directed primarily toward providing a means for quickly changing the hopper bottom opening dimension to suit either wet or dry and/or preheated coal being chaxged into a coke oven chamber from a larry car hopper, thereby fully adapting a coke oven battery, designed for coking these various consistencies of coal, for controlled coal charging flow rates into coke oven chambers.
Thus, the lnvention provides, in combination with a horizontal coke oven battery having a larry car movable along its top, means for controlling the rate of flow of coal from a hopper, mounted on said larry car, into coke oven chambers, comprising:
; a) means within said hopper to direct coal within said hopper towards a discharge point;
b) discharge means through which said coal, within said hopper,is discharged;
c) single movable element means, interposed beneath said discharge means, to regulate said rate of flow of said coal from said hopper;
d) means to actuate said single element means;
e) means to commence and halt the discharge of said coal through said discharge means;
f) means to operate said means to commence and halt the ~ .
- ~1457'~5 discharge of said coal through said discharge means;
and g) conduit means, beneath said single element means and said means to commence and halt, by which said coal is directed into said coke oven chamher.
In a preferred embodiment, a selector plate is inter-posed between the orifice at the bottom of the larry car hopper and the drop sleeve used to guide the flowing coal through the coke oven charging hole. The selector plate contains a plurality of circular apertures. One aperture is sized to accommodate the desired flow rate for wet coal. Additional apertures, successively smaller in dimension, being sized to accommodate the desired flow rate for dry and preheated coals are positioned through the sliding gate plate. Means for closing and opening the larry car hopper bottom orifice is interposed above the drop sleeve to maintain coal in the larry car hopper as required. Means for sliding the selector plate perpendicular to the flow path of the coal is utilized selectively in relation to the particular consistency of coal within the larry car hopper.
Accordingly, a simple and inexpensive means is dis-closed to control the flow rate of different consistencies of coal desired to be fed into a given coke oven chamber.
Brief Description of *he Drawings Fig. 1 is a side elevation view of a preferred embodi-ment of the present invention;
Fig. 2 is a top plan view upon the line II-II of Fig. l;
and Fig. 3 is a front elevation view upon the line III-III
of Fig. 2;
The present invention will now be described further by way of example only and with reference to the accompanying drawings wherein:
Briefly, a conventional larry car, which is movable along the top of a horizontal coke oven battery, is provided with a means for controlling the rate of flow of coal from the larry car hopper into the oven chamber of a coke oven. Referring to Fig. 1~ the flow rate controlling means includes a frusto-conical bottom section 11, an orifice 30 forming the bottom section of the frusto-conical bottom section 11, a single movable element means in the form of a selector plate 21 positioned under the orifice 30, means to actuate the single element means, in the form of a fluid actuated piston-cylinder 29, by which the selector plate 21 can be operated to commence and halt the discharge of coal through the orifice 30 and to regulate the flow rate of discharge of that coal, and a conduit means in the form of a drop sleeve assembly 15 positioned under the selector plate 21.
Referring to Fig. 1, a frusto-conical shaped bottom of a larry car hopper is provided with a vertical tube portion 13.
A flange means 14 is fixed to the lower extremity of the vertical tube portion 13. The upper flange 16 of a drop sleeve assembly 15 coacts with the flange means 14 to prevent disengagement of the drop sleeve assembly 15 from the vertical tube portion 13.
The drop sleeve assembly 15 is vertically reciprocal in a telescoping manner about the vertical tube portion 13. Re-ciprocation of the drop sleeve assembly 15 is effected by means of the action of a fluid actuated piston-cylinder 17 on a weighted pivot lever 19 which, in turn, exerts force on bail 20 fixed to the drop sleeve assembly 15.
Interposed on the vertical tube portion 13, about where shown in Fig. 1, is a selector plate 21 operable between an upper wear plate 22 and a lower wear plate 24. The upper wear plate 22 is fixed to the outer periphery of the vertical tube portion 13 114S7~!5 and includes an aperture through which the vertical tube portion 13 extends. The lower wear plate 24, likewise, is also fixed to the outer periphery of the vertical tube portion 13 and, likewise, includes an aperture through which the vertical tube portion extends. The upper wear plate 22 and the lower wear plate 24 are spaced apart and define a gap in the vertical tube portion 13, and form a frame 27. With that gap, surrounded by frame 27, the sel-ector plate 21 is horizontally slidable.
The selector plate 21 extends beyond the upper wear plate 22, as shown in Fig. 1. On the extension of the selector plate 21 is mounted a pair of rollers 31 that coact with a guide 33 to maintain alignment and linear motion of the selector plate 21 as it is slid within frame 27.
Referring to Fig. 2, means for sliding the selector plate 21 within frame 27 is provided by a fluid actuated piston-cylinder 29 fixed to the larry car superstructure ~not shown) and operably connected by clevis 28 to the selector plate 21.
The selector plate 21 includes a dry coal hole 23 and a wet coal hole 25, each positioned adjacent an end of the selector plate 21, as shown in Fig. 2. Between the dry coal hole 23 and the wet coal hole, the selector plate 21 is continuous and solid, pro-viding a sufficient blockage valve means for the coal hopper. The wet coal hole 25 is of equal diameter to the internal diameter of the vertical tubular portion 13. The dry coal hole 23 is smaller in diameter than the wet coal hole 25 and is sized to permit the optimum flow rate for dry and/or preheated coal into the oven chamber (not shown) located beneath the drop sleeve assembly 15.
In like manner, the wet coal hole 25, as well as the vertical tubular portion 13, are sized to permit the optimum flow rate for 30 wet coal into the oven chamber.
In operation, the larry carr (not shown) is positioned ~57~5 -above the oven chamber (not shown) which is to be filled. The larry car hopper has been previously filled with either wet, dry or preheated coal. The charging hole cover (not shown) is removed and the drop sleeve assembly 15 is dropped to engage the charging hole (not shown). There is sufficient horizontal play designed into the drop sleeve assembly 15 so that precise center alignment of the larry car hopper and the vertical tube portion 13 with the center of the charging hole (not shown) is not required.
Up to this point in the sequence of operations, the selector plate is positioned as shown in Fig. 2 to block the passage of coal downward from the larry car hopper r through the vertical tube portion 13 and drop sleeve assembly 15. At this point, piston-cylinder 29 is actuated to center align either dry coal hole 23 or wet coal hole 25 with the vertical tube portion 13 by linear sliding motion of the selector plate 21. Thus, the coal within the larry car hopper is-dispersed within the coke oven (not shown). Once the larry car hopper is emptied, the drop sleeve assembly 15 is raised, the charging hole cover (not shown) is replaced and the larry car (not shown) is moved to a loading station to receive more coal.
According to the provisions of the patent statutes, the principle, preferred construction and mode of operation of the present invention have been illustrated and described in what is now considered to be its best embodiment. However, it is to be understood that, within the scope of the appended claims, the present invention may be practiced otherwise than as speci-fically illustrated and described.
The top charging of horizontal coke oven batteries is commonly accomplished by a larry car movable on rails on top of the battery. The larry car is comprised of multiple hoppers, the number corresponding to the number of charging holes in the tops of each of the coke oven chambers which, together, make up the battery. A typical arrangement of a larry car in relation to a coke oven battery is depicted in the drawings of U.S. Patent No. 1,900,753. Coal is loaded into the hoppers. Then the larry car traverses the coke oven battery and is positioned over the charging holes of the particular oven to be charged. The bottoms of the hoppers are commonly frusto-conical in shape, tappering down to an annular orifice at their bottom ends which is generally equivalent in dimension to the diameters of the charging holes.
Some means is required to contain the coal in the larry car hoppers until the hoppers are in position above the designated oven to be charged and the charging hole covers have been removed.
In practice, generally a slide-gate plate is used. Such a gate is illustrated in German Patentschrift No. 848,643. A somewhat different positioning of such a gate is illustrated in U.S.
Patent No. 3,576,263. Additional means for containing coal in the larry car hoppers have been developed, but are not commonly used as they present practical, economic and operational problems.
Ideally, a coke oven will be charged with dry, preheated coal. However, actual practice is to charge the coke ovens with whatever coking coal is available at the given moment, rather than shutting down the ovens to prepare coal for charging. Thus, coal ,,.
~.
1 1457~5 at ambient temperature, both wet and dry, is typically charged into coke ovens. Such a situation is taken in account in the design of modern coke ovens, and means are provided therein to adjust the coke making operation to compensate for the different initial consistencies of the coal.
One problem that has developed in ovens designed to operate with wet, dry or preheated coals is that the flow char-acteristics of these different coal consistencies differ to a significant degree. Because it is beneficial to charge an oven within a preset time interval, it is desirable to provide means for controlling the flow rate of different consistencies of coal.
The flow rate of wet coal is slower and more sluggish than for dry coal; thus a larger opening is required to flow a given volume of coal into an oven within the preset time interval. But such a large opening creates problems when dry and/or preheated coal is charged. Since the flow pattern of dry and/or preheated coal is more rigid and more expansive, charging such coal consistencies through an opening ideally sized for wet coal causes uncontrolled flow resulting in irregular over-filling, and much dust and part-iculate matter suspended in the elevated temperature atmosphere - within the oven. This suspended matter tends to be carried over into the ascension pipes where it buiIds up and rapidly clogs the ascension pipes. The result is frequent downtime to clean the as-cension pipes. Further, the uncontrolled flow causes increased turbulance within the coke oven resulting in the unnecessary es-cape of polutants as back pressure through the charging holes.
Attempts have been made to use screw feeders and con-veyor systems to regulate the flow of coal. These have proved unsatisfactory due to the tendency of coal to flow more like a liquid than a solid. The only practical method employed to date has been to simply size the hopper outlet and the charging hole 57~5 properly to gain the desired flow rate of dry and/or preheated coal and attempt to control the use of wet coal. Alternately, a separate larry car with hoppers containing larger orifices for wet coal has been proposed to overcome the problem. The cost of such a solution is untenable.
Thus, some means is needed to provide and control the flow rates of both wet coal and dry and/or preheated coal inter-changeably on a given coke oven battery and it is to fulfilling this need that th~ present invention is addressed.
The present invention is directed primarily toward providing a means for quickly changing the hopper bottom opening dimension to suit either wet or dry and/or preheated coal being chaxged into a coke oven chamber from a larry car hopper, thereby fully adapting a coke oven battery, designed for coking these various consistencies of coal, for controlled coal charging flow rates into coke oven chambers.
Thus, the lnvention provides, in combination with a horizontal coke oven battery having a larry car movable along its top, means for controlling the rate of flow of coal from a hopper, mounted on said larry car, into coke oven chambers, comprising:
; a) means within said hopper to direct coal within said hopper towards a discharge point;
b) discharge means through which said coal, within said hopper,is discharged;
c) single movable element means, interposed beneath said discharge means, to regulate said rate of flow of said coal from said hopper;
d) means to actuate said single element means;
e) means to commence and halt the discharge of said coal through said discharge means;
f) means to operate said means to commence and halt the ~ .
- ~1457'~5 discharge of said coal through said discharge means;
and g) conduit means, beneath said single element means and said means to commence and halt, by which said coal is directed into said coke oven chamher.
In a preferred embodiment, a selector plate is inter-posed between the orifice at the bottom of the larry car hopper and the drop sleeve used to guide the flowing coal through the coke oven charging hole. The selector plate contains a plurality of circular apertures. One aperture is sized to accommodate the desired flow rate for wet coal. Additional apertures, successively smaller in dimension, being sized to accommodate the desired flow rate for dry and preheated coals are positioned through the sliding gate plate. Means for closing and opening the larry car hopper bottom orifice is interposed above the drop sleeve to maintain coal in the larry car hopper as required. Means for sliding the selector plate perpendicular to the flow path of the coal is utilized selectively in relation to the particular consistency of coal within the larry car hopper.
Accordingly, a simple and inexpensive means is dis-closed to control the flow rate of different consistencies of coal desired to be fed into a given coke oven chamber.
Brief Description of *he Drawings Fig. 1 is a side elevation view of a preferred embodi-ment of the present invention;
Fig. 2 is a top plan view upon the line II-II of Fig. l;
and Fig. 3 is a front elevation view upon the line III-III
of Fig. 2;
The present invention will now be described further by way of example only and with reference to the accompanying drawings wherein:
Briefly, a conventional larry car, which is movable along the top of a horizontal coke oven battery, is provided with a means for controlling the rate of flow of coal from the larry car hopper into the oven chamber of a coke oven. Referring to Fig. 1~ the flow rate controlling means includes a frusto-conical bottom section 11, an orifice 30 forming the bottom section of the frusto-conical bottom section 11, a single movable element means in the form of a selector plate 21 positioned under the orifice 30, means to actuate the single element means, in the form of a fluid actuated piston-cylinder 29, by which the selector plate 21 can be operated to commence and halt the discharge of coal through the orifice 30 and to regulate the flow rate of discharge of that coal, and a conduit means in the form of a drop sleeve assembly 15 positioned under the selector plate 21.
Referring to Fig. 1, a frusto-conical shaped bottom of a larry car hopper is provided with a vertical tube portion 13.
A flange means 14 is fixed to the lower extremity of the vertical tube portion 13. The upper flange 16 of a drop sleeve assembly 15 coacts with the flange means 14 to prevent disengagement of the drop sleeve assembly 15 from the vertical tube portion 13.
The drop sleeve assembly 15 is vertically reciprocal in a telescoping manner about the vertical tube portion 13. Re-ciprocation of the drop sleeve assembly 15 is effected by means of the action of a fluid actuated piston-cylinder 17 on a weighted pivot lever 19 which, in turn, exerts force on bail 20 fixed to the drop sleeve assembly 15.
Interposed on the vertical tube portion 13, about where shown in Fig. 1, is a selector plate 21 operable between an upper wear plate 22 and a lower wear plate 24. The upper wear plate 22 is fixed to the outer periphery of the vertical tube portion 13 114S7~!5 and includes an aperture through which the vertical tube portion 13 extends. The lower wear plate 24, likewise, is also fixed to the outer periphery of the vertical tube portion 13 and, likewise, includes an aperture through which the vertical tube portion extends. The upper wear plate 22 and the lower wear plate 24 are spaced apart and define a gap in the vertical tube portion 13, and form a frame 27. With that gap, surrounded by frame 27, the sel-ector plate 21 is horizontally slidable.
The selector plate 21 extends beyond the upper wear plate 22, as shown in Fig. 1. On the extension of the selector plate 21 is mounted a pair of rollers 31 that coact with a guide 33 to maintain alignment and linear motion of the selector plate 21 as it is slid within frame 27.
Referring to Fig. 2, means for sliding the selector plate 21 within frame 27 is provided by a fluid actuated piston-cylinder 29 fixed to the larry car superstructure ~not shown) and operably connected by clevis 28 to the selector plate 21.
The selector plate 21 includes a dry coal hole 23 and a wet coal hole 25, each positioned adjacent an end of the selector plate 21, as shown in Fig. 2. Between the dry coal hole 23 and the wet coal hole, the selector plate 21 is continuous and solid, pro-viding a sufficient blockage valve means for the coal hopper. The wet coal hole 25 is of equal diameter to the internal diameter of the vertical tubular portion 13. The dry coal hole 23 is smaller in diameter than the wet coal hole 25 and is sized to permit the optimum flow rate for dry and/or preheated coal into the oven chamber (not shown) located beneath the drop sleeve assembly 15.
In like manner, the wet coal hole 25, as well as the vertical tubular portion 13, are sized to permit the optimum flow rate for 30 wet coal into the oven chamber.
In operation, the larry carr (not shown) is positioned ~57~5 -above the oven chamber (not shown) which is to be filled. The larry car hopper has been previously filled with either wet, dry or preheated coal. The charging hole cover (not shown) is removed and the drop sleeve assembly 15 is dropped to engage the charging hole (not shown). There is sufficient horizontal play designed into the drop sleeve assembly 15 so that precise center alignment of the larry car hopper and the vertical tube portion 13 with the center of the charging hole (not shown) is not required.
Up to this point in the sequence of operations, the selector plate is positioned as shown in Fig. 2 to block the passage of coal downward from the larry car hopper r through the vertical tube portion 13 and drop sleeve assembly 15. At this point, piston-cylinder 29 is actuated to center align either dry coal hole 23 or wet coal hole 25 with the vertical tube portion 13 by linear sliding motion of the selector plate 21. Thus, the coal within the larry car hopper is-dispersed within the coke oven (not shown). Once the larry car hopper is emptied, the drop sleeve assembly 15 is raised, the charging hole cover (not shown) is replaced and the larry car (not shown) is moved to a loading station to receive more coal.
According to the provisions of the patent statutes, the principle, preferred construction and mode of operation of the present invention have been illustrated and described in what is now considered to be its best embodiment. However, it is to be understood that, within the scope of the appended claims, the present invention may be practiced otherwise than as speci-fically illustrated and described.
Claims (7)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. In combination with a horizontal coke oven battery having a larry car movable along its top, means for equalizing the rate of flow of different consistencies of coal from a hopper, mounted on said larry car, into coke oven chambers, comprising:
a) means within said hopper to direct coal within said hopper towards a discharge point;
b) discharge means through which said coal, within said hopper, is discharged;
c) single lineraly movable element means, having a plurality of circular apertures therein, each aperture differing in cross-sectional area from each other aperture, interposed be-neath said discharge means, operable to equalize said rate of flow of said coal from said hopper, such that differing consistencies of coal may flow therethrough at a substantially equivalent volume per unit of time;
d) means to actuate said single element means;
e) means to commence and halt the discharge of said coal through said discharge means;
f) means to operate said means to commence and halt the discharge of said coal through said discharge means; and g) conduit means, beneath said single element means and said means to commence and halt, by which said coal is directed into said coke oven chamber.
a) means within said hopper to direct coal within said hopper towards a discharge point;
b) discharge means through which said coal, within said hopper, is discharged;
c) single lineraly movable element means, having a plurality of circular apertures therein, each aperture differing in cross-sectional area from each other aperture, interposed be-neath said discharge means, operable to equalize said rate of flow of said coal from said hopper, such that differing consistencies of coal may flow therethrough at a substantially equivalent volume per unit of time;
d) means to actuate said single element means;
e) means to commence and halt the discharge of said coal through said discharge means;
f) means to operate said means to commence and halt the discharge of said coal through said discharge means; and g) conduit means, beneath said single element means and said means to commence and halt, by which said coal is directed into said coke oven chamber.
2. The combination as described in Claim 1 wherein:
a) said means within said hopper is a frusto-conical bottom section to said hopper;
b) said discharge means is an orifice forming the bottom section of said frusto-conical section; and c) said conduit means is a drop sleeve assembly.
a) said means within said hopper is a frusto-conical bottom section to said hopper;
b) said discharge means is an orifice forming the bottom section of said frusto-conical section; and c) said conduit means is a drop sleeve assembly.
3. The combination as described in Claim 1 wherein:
a) said single movable element means is a selector plate through which extend a plurality of holes, each said hole being of a different diametrical size than all other of said holes; and b) said means to commence and halt the discharge of said coal through said discharge means is a gate valve.
a) said single movable element means is a selector plate through which extend a plurality of holes, each said hole being of a different diametrical size than all other of said holes; and b) said means to commence and halt the discharge of said coal through said discharge means is a gate valve.
4. The combination described in Claim 1 wherein said means to commence and halt the discharge of said coal through said discharge means is integral with said single movable element means forming a regulation and control means.
5. The combination described in Claim 4 wherein:
a) said regulation and control means is a selector plate through which extend a plurality of holes, each said hole being of a different diametrical size than all other said holes, said selector plate including a solid area sufficient in size to halt the discharge of said coal through said discharge means when positioned directly beneath said discharge means; and b) said means to actuate and said means to operate are combined into a single means to move said selector plate.
a) said regulation and control means is a selector plate through which extend a plurality of holes, each said hole being of a different diametrical size than all other said holes, said selector plate including a solid area sufficient in size to halt the discharge of said coal through said discharge means when positioned directly beneath said discharge means; and b) said means to actuate and said means to operate are combined into a single means to move said selector plate.
6. The combination described in Claim 5 wherein said means to operate comprises a fluid actuated piston-cylinder fixed to said larry car and connected to said selector plate.
7. The combination described in Claim 6 wherein:
a) said means within said hopper is a frusto-conical bottom section to said hopper;
b) said discharge means is an orifice forming the bottom section of said frusto-conical section; and c) said conduit means is a drop sleeve assembly.
a) said means within said hopper is a frusto-conical bottom section to said hopper;
b) said discharge means is an orifice forming the bottom section of said frusto-conical section; and c) said conduit means is a drop sleeve assembly.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US82631577A | 1977-08-22 | 1977-08-22 | |
| US826,315 | 1977-08-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1145705A true CA1145705A (en) | 1983-05-03 |
Family
ID=25246224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000308725A Expired CA1145705A (en) | 1977-08-22 | 1978-08-03 | Coal flow rate control for coke oven charging |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5445305A (en) |
| CA (1) | CA1145705A (en) |
| DE (1) | DE2832685A1 (en) |
| GB (1) | GB2003120B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2130563A (en) * | 1982-08-09 | 1984-06-06 | Frank Robinson Barnshaw | Dispenser for granular material |
| CN110203654A (en) * | 2019-04-09 | 2019-09-06 | 临沂矿业集团有限责任公司 | A kind of rock feeder with two-way material collecting device |
-
1978
- 1978-07-26 DE DE19782832685 patent/DE2832685A1/en not_active Withdrawn
- 1978-08-03 CA CA000308725A patent/CA1145705A/en not_active Expired
- 1978-08-18 GB GB7833817A patent/GB2003120B/en not_active Expired
- 1978-08-22 JP JP10224178A patent/JPS5445305A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5445305A (en) | 1979-04-10 |
| DE2832685A1 (en) | 1979-03-08 |
| GB2003120B (en) | 1982-03-17 |
| GB2003120A (en) | 1979-03-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |