US3795987A - Cooling or preheating device for coarse or bulky material with heat space recovery equipment - Google Patents

Cooling or preheating device for coarse or bulky material with heat space recovery equipment Download PDF

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Publication number
US3795987A
US3795987A US00279224A US27922472A US3795987A US 3795987 A US3795987 A US 3795987A US 00279224 A US00279224 A US 00279224A US 27922472 A US27922472 A US 27922472A US 3795987 A US3795987 A US 3795987A
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bunker
gas
boiler
apertures
bulk
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R Kemmetmueller
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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

  • ABSTRACT An apparatus for treating material in bulk
  • An upright bunker is provided to accommodate the material in bulk while it flows gravitationally down the interior of the bunker.
  • the bunker has at its lower discharge end a tapered wall formed with apertures to admit to the material in the bunker a gas at a temperature different from the material of the bunker while permitting those parts of the material which are small enough to pass through the apertures to fall out of the bunker through the apertures before reaching the lower discharge end.
  • a plenum surrounds the apertures and communicates with a gas supply through which the gas is delivered to the apertures to flow therethrough, and a gas discharge communicates with the top of the bunker to discharge the gas therefrom.
  • the material falling through the apertures is collected in the plenum and conveyed away from the latter.
  • a boiler may receive the hot gas from the bunker to use, the gas for generating steam, and the gas which is cooled in the boiler is then returned to the plenum.
  • the cooling gas which is delivered to the central axis of the bunker flows upwardly around the baffles and fails to come in contact with the bulky material situated beneath the gas discharge openings as well as beyond the immediate vicinity of the gas discharge openings at the elevation of the latter.
  • a considerable amount of valuable heat which might otherwise be carried away with the gas remains in the bulky material so that the latter is not cooled in the most effective manner.
  • bulky materials'of the above type will necessarily have as components thereof relatively small particles in the form of dust or granular bulky material, and these components are necessarily discharged with the remainder of the bulky material from the bunker. It is these conditions which necessitate the use of a screening station where bulky material composed of bodies only greater than a given size are sepa- 4 rated from bodies smaller than this given size. These screening operations involve a considerable expense because of the apparatus and operations in connection with the screening itself as well as because of the necessity of conveying the bulky material to and from the screening station.
  • the gas which flows out of the bunker carries along a certain amount of dust from the bulky material, and this dust deposits on the exterior surface of heatexchanging elements preventing the latter from operating with the greatest possible efficiency and necessitating undesirably large maintenance costs, so that these latter factors also contribute to undesirable heat losses.
  • one of the primary objects of the present invention is to provide a bunker installation capable of handling bulky material'in such a way that parts of the bulky material which are smaller than a given size are separated from the bulky material even before the latter is discharged from the bunker so that in this way it becomes possible to eliminate screening operations and thus avoid all of the costs and disadvantages necessitated by the screening operations.
  • Yet another object of the present invention is to provide an installation of the type in which precise highly effective controls of the gas in a closed cycle are achieved in such a way as to provide the best possible utilization of the available energy.
  • An additional object of the invention is to provide an installation of the above type which will enable operations to continue even if part of the structure must be taken out of operation because of a failure which may be encountered during the operation.
  • the objects of the present ivention also include the provision of an installation of the above type which is of a relatively light weight, providing considerable savings in foundation costs and the like, while at the same time being exceedingly robust so that strength in the construction is combined with the light weight thereof.
  • the objects of the invention include the provision of convenient and effective controls which make it possible to regulate the operation of an installation of the above type in a manner which will achieve the greatest possible efliciency and heat recovery for the particular conditions which are encountered during operation.
  • an apparatus for treating material in bulk includes an upright bunker means which has an upper receiving end for receiving the material in bulk and a lower discharge end through which the material in the bunker means discharges out of the latter while progressing gravitationally downwardly along the interior of the bunker means.
  • the bunker means has in the region of its lower discharge end a tapered wall portion the larger end of which is higher than its opposed smaller end.
  • This tapered wall portion of the bunker means is formed with a plurality of apertures distributed throughout the tapered wall portion for admitting gas into the bunker means to flow upwardly through the bulky material therein while those parts of the bulky material which are small enough to pass through the apertures will fall through the latter apertures out of the bunker means before reaching the discharge end thereof.
  • a plenum means surrounds the tapered wall portion of the bunker means and a gassupply means communicates with the interior of the plenum means for supplying to the latter gas at a temperature different from the bulk material to flow through the apertures into the bunker means and upwardly through the bulky material therein to achieve a heat-exchange relationship between the bulk material and the gas flowing upwardly therethrough.
  • the parts of the bulky material which fall through the apertures are collected in the plenum means.
  • a gas discharge means communicates with the interior of the bunker means at the region of its upper receiving end to receive the gas which flows upwardly through the bulk material and to discharge the gas out of the bunker means.
  • a transporting means communicates with a lower region of the plenum means to transport away from the latter those parts of the bulk material which fall through the apertures before reaching the discharge end of the bunker means.
  • FIG. 3 is a schematic sectional plan view taken along line 3-3 of FIG. 1 in the direction of-the arrows showing further details of the structure for adjusting the shiftable plate of FIG. 2;
  • FIG. 4 is a schematic elevation of the structure of FIG. 3;
  • FIG. 5 is a schematic sectional elevation of a preferred embodiment of an installation according to the invention.
  • FIG. 6 is a schematic fragmentary sectional illustration of details of the boiler structure of FIG. 5;
  • FIG. 7 is a schematic partly sectionaly plan view of the installation of FIG. 5 taken along line 77 of FIG. 5 in the direction of the arrows;
  • FIG. 8 is a schematic sectional plan view taken along line 88 of FIG. 5 in the direction of the arrows and showing details of the structure for adjusting an outer apertured wall of FIG. 5;
  • FIG. 9 is a fragmentary schematic representation of the plenum of FIG. 5 and the transporting means for carrying material away from the plenum.
  • FIG. 1 there is illustrated therein an upright bunker means 10 which is supported in any suitable way on an unillustrated foundation and which has a wall composed of an outer steel casing l2 which is lined at its interior with a brick lining 14.
  • the upright bunker means 10 has an upper receiving end 16 which receives the bulky material 20 which enters into the interior of the bunker means 10.
  • the upper receiving end 16 may include a central tube 22 into which the bulky material 20 is delivered as schematically indicated by the arrows 24. This material may be delivered to the receiving end 16 from any suitable conveyer, chute, duct, or the like.
  • the bulky material 20 may take the form of incandescent coke transported dision 58 is capable of being opened and closed by a suitrectly from a coke oven, or it may be in the form of sinter or any other coarse hot material.
  • a gas which is heated by the hot bulky material 20 flows upwardly through this material in the interior of the bunker, and this gas is'received by a gas-discharge means 26 situated at the upper receiving end of the bunker and through which the inlet pipe 22 extends.
  • the gas discharge means 26 has a lower wall 28 formed with apertures through which the gas enters the space 30 between the wall 28 and the top wall 32- of the bunker. This space 30 surrounds the pipe 22 and communicates with a pipe 34 through which the gas flows away from the bunker in the manner indicated by the arrows 36.
  • the top wall 32 is provided with one or more explosion doors 38, one of which is schematically indicated in FIG. 1.
  • the upright bunker means 10 has a lower discharge end 40.
  • This lower discharge end of the bunker is controlled by way of a suitable horizontal gate 42 shiftable to the right and left, as indicated by the arrow 44 and operatively connected through a suitable rod 46, schematically indicated in FIG. I, to the piston of a hydraulic drive 48 mounted on a support 50 carried by the framework of the bunker at the exterior of the latter.
  • the hydraulic motor 48 may be operated to act through the rod 46 on the gate 42 in order to open or close the discharge end 40 of the bunker to a desired extent.
  • able gate 60 which is in turn controlled by a hydraulic drive 62.
  • a conveyer means 64 which conveys the bulky materialto any desired location such as suitable storage bunkers where the material is stored for future use.
  • the upright bunker means 10 includes a tapered wall portion 66 which has its larger end 68 located higher than its smaller end 70.
  • the smaller end 70 of the tapered wall portion 66 of the bunker 10 terminates directly at the lower discharge end 40 of the bunker while the larger upper end 68 of the tapered wall portion 66 is joined the lower end of the bunker wall which is formed by the steel casing 12 and the brick lining 14.
  • the tapered wall portion 66 is formed with a' plurality of apertures 70 distributed throughout this tapered, frustoconical wall portion 66.
  • the tapered wall portion 66 is surrounded by a plenum means 72 which defines a closed interior chamber 74 which communicates with the apertures 70.
  • the plenum means 72 in turn communicates with a gassupply means 76 through which gas at a suitablepressure is supplied to the interior 74 of the plenum means 72, and this gas is capable of flowing through the apertures 70 of the tapered wall portion 66 into the bunker in order flow upwardly through the bulky material 20 therein.
  • the flow of the gas into the apertures from the interior 74 of the plenum means 72 is indicated by the arrows 78.
  • the entry of the gas through the apertures 70 of the tapered wall portion 66 enables the gas to come into contact with the entire body of bulky material which progresses gravitationally down the interior of the bunker, so that where the gas is a cold gas and the bulky material 26) is a hotmaterial, the cold will come in contact with all of the bulky material and extract from the bulky material far more heat than has hitherto been possible with conventional installations.
  • an additional very great advantage which is achieved with this construction is that those parts of the bulky material 20 which are small enough to pass through the apertures 70 will fall downwardly through these apertures into the interior of the plenum means 72 before reaching the lower discharge end 40 of the bunker means 10.
  • the bulky material which is received by the conveyer means 64 is substantially free of any'components small enough to fall through the apertures 70.
  • screening actually takes place at these apertures 70 and it becomes unnecessary for the conveyer means 64 to convey the bulky material to a screening station.
  • the lower portion of the plenum means 72 is in the form of a series of hoppers circumferentially distributed about the vertical axis of the bunker means 10, these hopper portions 80 being schematically indicated in part in FIG. 9.
  • the rod 46 extends between a pair of these hopper portions, and the hopper 52 is supported by beams which also extend between the hopper portions to be connected to the upper region of the plenum means 72.
  • the relatively small portions of the bulky material which are small enough to pass through the apertures 70 will collect in the plenum means 72 at the lower ends of the several hopper portions 80 thereof.
  • these hopper portions 80 communicate with a pneumatic header 82, having a series of branches 83 communicating respectively with the several hopper portions 80.
  • the header 82 also extends circumferentially around the axis of the bunker and is of a circular configuration. As is indicated schematically in FIG.
  • the pneumatic header 82 communicates with a pipe 84 having a control valve 86 and communicating with the inlet of a blower 88 which serves to provide a stream of air conveying the small components of the bulky material away from the plenum means 72 and delivering this material in a stream of air along the pneumatic duct 90.
  • this duct communicates with one or more burners where the combustible material collected in the plenum means 72 may be burned so as to utilize the heat energy thereof, and in addition the deposition of the smaller components of the bulky material in the plenum means 72 prevents this smaller material, particularly the components thereof which have the size of dust particles, from being released to the outer atmosphere so that undesirable pollution of the outer atmosphere is avoided in this way.
  • apertures 70 are illustrated on an enlarged scale in FIG. 2. These apertures may have a diameter on the order of inch, so that all components of the bulky material which have a size a of k inch or less will fall through the apertures 70 to be received by the transporting means formed by the pneumatic pipe 82 and the blower 80. For some purposes it may be desirable to cover the apertures 70, or
  • the gas discharge means 26 delivers the gas at the upper receiving end 16 of the bunker means 10 through the pipe 34 to the top end of a boiler 102 which is schematically illustrated in FIG. 1 to the right of the upright bunker means 10.
  • the schematically illustrated boiler 102 includes an upper bank of coils 104 forming a superheater and communicating with a steam drum 106 in a well known manner. Below the superheater coils 104. are banks-of evaporator coils 108, and the lowermost bank of coils 108 forms a circulation evaporator receiving feed water from a pipe 1 10, as schematically indicated in FIG. 1. The lowest bank of coils 112 of the boiler 102 forms a gas preheater.
  • the pipe 76 receives the gas from the lower end of the boiler 102 and delivers it to the plenum means 72.
  • the pipe 76 may communicate with a suitable blower which serves to maintain the gas flowing through the abovedescribed closed cycle.
  • the several banks of coils in the boiler 102 may besurrounded by an outer welded assembly of tubes forming a watertube wall 1 14 of the boiler 102.
  • the several banks of coils and the watertube wall communicate with each other to provide for flow of water therethrough in order to achieve at the coils 104 the superheated steamwhich discharges out of the latter through the pipe 116 which delivers the steam to any desired location where further use is made thereof.
  • this steam may be used to drive a turbine which in turn may drive a generator,
  • the pipe 34 accommodates in its interior, just upstream of the boiler 102 an auxiliary burner 118 which is shown schematically in FIG. 1.
  • This burner is provided to control the inert gas which flows through the closed cycle described above.
  • the auxiliary burner 118 is regulated, and the pneumatic pipe of the conveyer means which conveys the particles collected in the plenum means 72 may ,deliver the combustible material to the auxiliary burner 1 18 so that the energy of this collected material may be used at the burner 1 18.
  • This burner 118 also may be used for increasing the temperature of the boiler at the region of the superheater coils 104, so as to regulate the quality of the steam which is delivered to the pipe 116 from the bank of coils 104.
  • the arrangement of the boiler 102 outside of the upright bunker means 10 creates the necessity for floor space in addition to that required by the bunker itself, so that an undesirably large amount of space is occupied by the installation which is shown in FIG. 1.
  • the steel casing and brick lining of the bunker wall makes the bunker exceedingly heavy so that a very strong foundation is required.
  • FIGS. 58 illustrate an embodiment of the invention which avoids these drawbacks of the embodiment of FIGS. 1-4.
  • the upright bunker means 120 shown in FIG. 5 also includes a lower tapered wallportion 66 provided with apertures 70, this part of the structure being identical with that of FIG. 1.
  • the lower tapered wall portion 66 of the bunker means 120 is surrounded by a plenum means 72 which is substantially identical with that of FIG. 1.
  • the structure beneath the lower discharge end 40 of the bunker for receiving the bulky material from the bunker and conveying it to a suitable location is substantially identical with that of FIG. 1 and is indicated by the same reference characters. The only difference is that pairs of gates 42 and 54 are moved equally and oppositely by motors 48 and 56, respectively.
  • the material enters also through a pipe 22, and the gas discharges out of the bunker through an apertured wall 28.
  • the boiler 122 directly surrounds the bunker and in fact has an inner water-tube wall 124 which forms that part of the bunker wall which extends upwardly from the tapered wall portion 66 thereof.
  • the inner watertube wall of the boiler 122 not only receives heat directly from the material 20 in the bunker itself, but part of this wall extends downwardly beyond the top end of the tapered wall portion 66 so' that the lower portion of the inner watertube wall 124 is heated by heat which travels through the lower tapered wall 66 and is situated in the upper part of the plenum means 72.
  • the boiler 122 includes an outer watertube wall 126 which communicates with the upper boiler drum 128 which may have an annular configuration.
  • each bank of convection coils 130 In the space which is defined by the inner and outer watertube walls 124 and 126 of the boiler 122 there are banks of convection coils 130. These banks of convection coils 130 are arranged in the manner illustrated in FIG. 7 in separate groups of coils which are separately supplied through cold water inlet pipes 132 and separately communicate with steam discharge pipes 134 which communicate with the boiler drum 128.
  • the watertube wall 126 is made up of a series of flat sections releasably connected to vertical spacers 127' of wedge shaped cross section to form the polygonal configuration illustrated in FIG.
  • Spacers 127 are formed with vertical passages 129 receiving feedwater from pipes 132 and communicating with pipes 134.
  • the steam delivered through the pipes 134 to the boiler drum 128 flows from the latter through pipes 136 into a series of superheating coils 138 situated between the walls 124 and 126 above the convection coils 130. superheated steam is discharged out of the superheating coils 138 by way of the discharge tubes 141).
  • the lower wall portion 66 is surrounded by a tapered apertured wall 142 illustrated in F IGS. 5 and 8 and having apertures corresponding to the apertures 94. These apertures 94 are also capable of registering with the apertures when the latter are completely uncovered.
  • the tapered wall 142 which matches the configuration of the tapered wall 66 and engages the latter at its exterior surface is slidable around the axis of the bunker for adjusting the extent to which the openings or apertures 70 are covered or uncovered.
  • the outer wall means 142 of this embodiment is fixed with a radially extending arm 144 connected through a rod 146 with a hydraulic drive 148.
  • the rod 146 may extend through suitable fittings of the plenum means 72.
  • the top wall of the bunker is provided with an explosion door 38.
  • the safety is increased by connecting safety valves 147 to the boiler drum 128.
  • the gas in the gas discharge means 26 reaches the top end of the space defined between the inner and outer watertube walls 124 and 126 of the boiler 122, the gas encounters a dust collecting means formed by inclined baffles or the illustrated series 150, and thus dust is prevented from entering into the boiler 122.
  • This dust will enter suction pipes 151 communicating with cyclones 151), respectively, and with a circular header 153 which communicates with header 82 (FIG.
  • Wall 155 carries the cyclones and fills the spaces therebetween so that all gas from discharge means 26 must pass through cyclones 150. From'the latter, the cleaned hot gas flows through pipes 147 downwardly through the boiler.
  • the interior of the gas discharge means 26 also accommodates auxiliary burners 152' which may be supplied by the pneumatic pipe 90, as from branches 90a and 90b thereof so that the material collected in the plenum means may be burned at these auxiliary burners 152.
  • the burner gas may also be derived from green coke with the addition of oxygen if necessary and with the admission of nitrogen if necessary to prevent explosions.
  • the watertube walls may be covered with Gunnite which is sprayed thereon in the form of a ceramic spray deposited on the fins and coils of the watertube .walls to increase the heat resistance thereof.
  • Gunnite which is sprayed thereon in the form of a ceramic spray deposited on the fins and coils of the watertube .walls to increase the heat resistance thereof.
  • FIG. 6 it is also possible to fix the coils such as the convection coils 130 directly to the watertube walls 124 and 126, so that in this case an exceedingly strong construction will result with the fixing of the interior coils to the inner and outer watertube walls forming the same effect as a girder construction where beams are reinforced by struts extending between and fixed to the beams.
  • the coils may be welded to the inner and and outer watertube walls or they may be bolted thereto in the manner shown schematically in FIG. 6.
  • the same fixing of the coils to the inner and outer watertube walls may be provided for the superheater coils 138.
  • the entire boiler structure of FIG. is lighter than the brick lined steel wall of FIG. 1, nevertheless it is exceedingly strong, and at the same time the foundation for the embodiment of FIG. 5 need not be as strong as the foundation required for the embodiment of FIG. 1.
  • FIG. 5 shows a strong but relativelylight supporting framework 154 which carries the entire installation of FIG. 5.
  • this framework 154 carries a vibrator means formed by a plurality of vibrators 156 in the form of suitable electrical motors carrying rotary discs provided with eccentric weights so that when the motors are operated a controlled vibration for the entire assembly will be provided.
  • this vibrator means 156 it is possible to increase the extent to which the relatively small components of the bulky material drop through the apertures 70 into the plenum means 72.
  • the collected dust may be used at the auxiliary burners, as pointed out above, before the waste heat boiler and/or gas preheater. These auxiliary burners have the.
  • FIG. 5 is of particular advantage because it is light and at the same time strong and in addition requires far less floor space than the embodiment of FIG. 1.
  • the strength of the installation is greatly increased by the fixing of the inner coils of the boiler to the inner and outer watertube walls thereof so that there is a stiffening between these walls providing the effect of a box girder in a bridge.
  • the exterior watertube wall 126 fixedly carries stiffening rings 160 which are brazed directly onto the exterior watertube wall and serve to add to the stiffness and strength of the entire structure. This added stiffening also increases safety in the case of an explosion.
  • loss of heat is reduced to a minimum.
  • a minimum surface is exposed to the open air with'the embodiment of FIG. 5, so that an extremely large amount of heat canbe used for power generation or gas preheating.
  • the heat losses are' reduced to a minimum, the outside watertube wall temperature will not exceed 400 F, and of course with proper insulation which is provided the heat losses are reduced to an absolute minimum.
  • a pipe system 76 similar to that of FIG. 1 receives cool gas from the boiler and delivers it to the plenum means 72.
  • gas supply means communicating with said lower portion of said bunker means for supplying a gas at a relatively low temperature to flow upwardly through said bunker means to be heated by the material in bulk therein by extracting heat therefrom while the material in bulk is cooled by the upwardly flowing gas prior to discharge of the material in bulk from the lower portion of said bunker means
  • gas-discharge means communicating with said upper portion of said bunker means for discharging from the latter a hot gas heated by the material in bulk while the latter is cooled by the gas flowing upwardly through said bunker means
  • upright boiler means operatively connected between and communicating with said gasdischarge means and said gas-supply means for receiving hot gas from said gas-discharge means and generating steam therefrom while
  • said bunker means having an upper receiving end for receiving the material in bulk and a lower discharge end through which the material in said bunker means discharges out of the latter while progressing gravitationally downwardly along the interior of said bunker means, said bunker means having in the region of said discharge end thereof a tapered wall portion the larger end of which is higher than its opposed smaller end, said tapered wall portion of said bunker means being formed with a plurality of apertures distributed throughout said tapered wall portion for admitting gas into said bunker means to flow upwardly through the bulky material therein while those parts of the bulky material which are small enough to pass through said apertures will fall through the apertures out of the bunker means before reaching said discharge end thereof, plenum means surrounding said tapered wall portion of said bunker means and said gas-supply means communicating with the interior of said plenum means for supplying to the latter gas to flow through said apertures into said bunker means and upwardly through the bulk material therein to achieve a heatexchange relationship between the bulk
  • an outer wall means is located directly next to said tapered wall portion of said bunker means in engagement therewith and is formed with apertures which in one position of said outer wall means respectively register with said apertures of said tapered wall portion, and adjusting means operatively connected with said outer wall means for adjusting the position thereof with respect to said tapered wall portion for controlling the extent to which said apertures of said tapered wall portion are covered or uncovered by said outer wall means.
  • bunker means includes above said tapered wall portion thereof an outer steel casing and an inner brick lining covering the interior surface of said steel casing.
  • valve means is situated between said plenum means and pneumatic means for controlling the flow of material from said plenum means to said pneumatic means.

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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)
  • Furnace Details (AREA)
US00279224A 1972-08-09 1972-08-09 Cooling or preheating device for coarse or bulky material with heat space recovery equipment Expired - Lifetime US3795987A (en)

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US00279224A US3795987A (en) 1972-08-09 1972-08-09 Cooling or preheating device for coarse or bulky material with heat space recovery equipment
JP8887273A JPS5328041B2 (2) 1972-08-09 1973-08-09
US00408851A US3848344A (en) 1972-08-09 1973-10-23 Bunker-boiler installations

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Cited By (19)

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US3848344A (en) * 1972-08-09 1974-11-19 Waagner Biro American Bunker-boiler installations
US3895448A (en) * 1973-12-19 1975-07-22 Koppers Co Inc Dry coke cooler
US3959084A (en) * 1974-09-25 1976-05-25 Dravo Corporation Process for cooling of coke
US4012202A (en) * 1974-04-03 1977-03-15 Alcan Research And Development Limited Pyroscrubber
US4106998A (en) * 1973-10-25 1978-08-15 Nippon Kokan Kabushiki Kaisha Method of restraining emission from coke quenching equipment
US4135309A (en) * 1977-07-11 1979-01-23 Buttes Gas & Oil Co. Process for drying beet pulp
US4212706A (en) * 1977-07-08 1980-07-15 Nippon Kokan Kabushiki Kaisha Method of controlling pressure of gas circulating in the coke dry quenching apparatus
DE2952065A1 (de) * 1979-12-22 1981-07-02 Fa. Carl Still Gmbh & Co Kg, 4350 Recklinghausen Verfahren zur trockenkuehlung von koks und kokskuehleinrichtung zur durchfuehrung des verfahrens
DE3013325A1 (de) * 1980-04-05 1981-10-08 Fa. Carl Still Gmbh & Co Kg, 4350 Recklinghausen Verfahren zur trocknung und vorerhitzung von kohle unter ausnutzung der fuehlbaren kokswaerme bei der trockenen kokskuehlung bzw. -loeschung
US4574744A (en) * 1983-12-23 1986-03-11 Firma Carl Still Gmbh & Co. Kg Waste heat boiler system, and method of generating superheated high pressure steam
US4617744A (en) * 1985-12-24 1986-10-21 Shell Oil Company Elongated slot dryer for wet particulate material
US4842695A (en) * 1982-01-27 1989-06-27 Krupp Koppers Gmbh Arrangement of a dry cooler for coke
US4888885A (en) * 1987-11-18 1989-12-26 New Hampshire Flakeboard, Inc. Dryer for combustible chip-like material
EP0437265A1 (en) * 1990-01-12 1991-07-17 Nippon Steel Corporation Quenching tower gas outlet flue of coke dry quenching equipment
US6154979A (en) * 1998-01-09 2000-12-05 Asj Holding Aps Method and apparatus for the removal of liquid from particulate material
US20060057532A1 (en) * 2002-12-20 2006-03-16 Jan Norrman Device for emptying of hot particle material from a chamber into a transport container
US20060093718A1 (en) * 2004-10-12 2006-05-04 Jurkovich John C Agricultural-product production with heat and moisture recovery and control
US20160107135A1 (en) * 2013-04-25 2016-04-21 Danieli Corus B.V. System and method for conditioning particulate matter
CN108795507A (zh) * 2018-08-15 2018-11-13 宁夏宝丰能源集团股份有限公司 一种气化炉以及气化系统

Families Citing this family (3)

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Publication number Priority date Publication date Assignee Title
JPS5245604A (en) * 1975-10-09 1977-04-11 Nippon Kokan Kk <Nkk> Multi-stage gas blowing apparatus for coke dry quenching chamber
JPS5735542Y2 (2) * 1978-02-03 1982-08-06
TWI556570B (zh) * 2015-10-13 2016-11-01 財團法人工業技術研究院 太陽能電池特性的量測裝置及使用其之量測方法

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JPS504635A (2) 1975-01-18

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