WO2018043893A1 - 성형탄 제조 설비의 원료 공급장치 및 원료 공급 방법 - Google Patents

성형탄 제조 설비의 원료 공급장치 및 원료 공급 방법 Download PDF

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Publication number
WO2018043893A1
WO2018043893A1 PCT/KR2017/006683 KR2017006683W WO2018043893A1 WO 2018043893 A1 WO2018043893 A1 WO 2018043893A1 KR 2017006683 W KR2017006683 W KR 2017006683W WO 2018043893 A1 WO2018043893 A1 WO 2018043893A1
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WO
WIPO (PCT)
Prior art keywords
raw material
outlet
manufacturing equipment
housing
coal briquette
Prior art date
Application number
PCT/KR2017/006683
Other languages
English (en)
French (fr)
Korean (ko)
Inventor
박우일
김홍산
이용덕
Original Assignee
주식회사 포스코
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to EP17846818.7A priority Critical patent/EP3505600A4/en
Priority to CN201780064068.8A priority patent/CN109844067A/zh
Publication of WO2018043893A1 publication Critical patent/WO2018043893A1/ko

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/04—Raw material of mineral origin to be used; Pretreatment thereof
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/16—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using pocketed rollers, e.g. two co-operating pocketed rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/30—Feeding material to presses
    • B30B15/302—Feeding material in particulate or plastic state to moulding presses
    • B30B15/308—Feeding material in particulate or plastic state to moulding presses in a continuous manner, e.g. for roller presses, screw extrusion presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/34—Heating or cooling presses or parts thereof
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
    • C10L5/10—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
    • C10L5/10—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders
    • C10L5/14—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with organic binders
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
    • C10L5/10—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders
    • C10L5/22—Methods of applying the binder to the other compounding ingredients; Apparatus therefor
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/34—Other details of the shaped fuels, e.g. briquettes
    • C10L5/36—Shape
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/34—Other details of the shaped fuels, e.g. briquettes
    • C10L5/36—Shape
    • C10L5/361—Briquettes
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/06—Heat exchange, direct or indirect
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/14—Injection, e.g. in a reactor or a fuel stream during fuel production
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/14—Injection, e.g. in a reactor or a fuel stream during fuel production
    • C10L2290/148—Injection, e.g. in a reactor or a fuel stream during fuel production of steam
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/18—Spraying or sprinkling
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/24—Mixing, stirring of fuel components
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/30—Pressing, compressing or compacting
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/32—Molding or moulds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/52—Hoppers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/58—Control or regulation of the fuel preparation of upgrading process

Definitions

  • the present invention relates to a coal briquette manufacturing apparatus. More specifically, the present invention relates to a raw material supply device and a raw material supply method for supplying a raw material to a molding machine of the coal briquette manufacturing equipment.
  • a reduction furnace for reducing iron ore and a melting furnace for melting reduced iron ore are used.
  • coal briquettes are charged into the melting furnace as a heat source for melting iron ore.
  • the reduced iron is melted in the melting furnace, converted to molten iron and slag, and then discharged to the outside.
  • the coal briquettes should be able to increase the reaction efficiency and heat transfer efficiency between the materials by securing the air permeability and liquid permeability for the smooth passage of gas and liquid in the molten gasifier.
  • the coal briquettes are manufactured in the form of briquettes of a predetermined size by mixing coal and a binder containing appropriate moisture and then compressing the mixed raw materials in a molding machine.
  • a feed for continuously supplying the raw material between the roll of the molding machine.
  • the feeder must supply the raw material to the molding machine at a constant rate.
  • the adhesion of raw materials in the feeder should be small, and the aggregated raw materials should not remain large while being kept in place and are discharged within the proper residence time so as not to block the feeder outlet.
  • the present invention provides a raw material feeder and a raw material feed method of a coal briquette manufacturing facility, which minimizes the flow of raw material to be stuck or aggregated in the feeder to improve the feed flow of the raw material and prevent the blockage.
  • a raw material feed device and a raw material feed method of a coal briquette manufacturing facility which is capable of easily separating a raw material attached in a feed device and supplying the same to a molding machine.
  • the coal briquette manufacturing equipment is installed between a powder mixing machine and a binder to form a raw material and a molding machine for molding the mixed raw material to produce coal briquettes to continuously supply the raw material supplied from the mixer to the molding machine.
  • the feeder forms a receiving space therein and the lower end of the feeder main body is provided with an outlet of the raw material, a rotating shaft rotatably installed in the center of the feeder body, the feeder body is installed above A drive unit connected to the rotating shaft to rotate the rotating shaft, a blade installed on the rotating shaft and extending in a radial direction, an outlet connected to the outlet and extending to a molding machine, and applying heat or cold air to the raw material inside the outlet to adjust the temperature of the raw material. It may include a control unit for adjusting the viscosity by varying.
  • the control unit includes at least one housing installed on an inner surface of the outlet, a supply line connected to the housing for supplying a high temperature or low temperature fluid to the housing, and a spray hole formed in the housing for injecting a fluid into the raw material inside the outlet. It may include.
  • the supply line is a nitrogen gas line for supplying nitrogen gas for reducing the raw material temperature, a steam line for supplying steam for increasing the raw material temperature, a valve installed in the nitrogen gas line and the steam line to open and close each line, each valve It may include a control unit for controlling operation.
  • the housing may have a triangular cross-sectional structure that is in close contact with the edge of the outlet.
  • the housing is formed to extend up and down long along the outlet, the plurality of injection holes are formed in the housing at intervals in the vertical direction, the injection hole formed at the lower end may be formed within 30mm from the bottom of the housing to the top.
  • the binder may be a cellulose ether mixture.
  • the control unit may supply a high pressure fluid through the supply line, and injects a high pressure fluid through the injection port of the housing, it may be a structure for applying impact energy to the raw material in the outlet.
  • the control unit may be a structure for supplying a fluid at a pressure of 8 to 16 bar through a supply line.
  • the coal briquette manufacturing equipment is installed between a powder mixing machine and a binder to form a raw material and a molding machine for molding the mixed raw material to produce coal briquettes to continuously supply the raw material supplied from the mixer to the molding machine.
  • the feeder forms a receiving space therein and the lower end of the feeder main body is provided with an outlet of the raw material, a rotating shaft rotatably installed in the center of the feeder body, the feeder body is installed above
  • a drive unit connected to the rotating shaft to rotate the rotating shaft, a blade installed on the rotating shaft to extend in a radial direction, an outlet connected to the outlet to extend into a molding machine, and installed inside the outlet to apply impact energy to a raw material in the outlet; It may include an impact unit.
  • the impact unit may include at least one housing installed on an inner surface of the outlet, a supply line connected to the housing for supplying a high pressure fluid to the housing, and an injection hole formed in the housing to inject fluid into the raw material inside the outlet.
  • a supply line connected to the housing for supplying a high pressure fluid to the housing
  • an injection hole formed in the housing to inject fluid into the raw material inside the outlet.
  • the supply line may include a nitrogen gas line for supplying high pressure nitrogen gas and / or a steam line for supplying high pressure steam.
  • the housing may have a triangular cross-sectional structure that is in close contact with the edge of the outlet.
  • the housing is formed to extend up and down long along the outlet, the plurality of injection holes are formed in the housing at intervals in the vertical direction, the injection hole formed at the lower end may be formed within 30mm from the bottom of the housing to the top.
  • the impact unit may have a structure for supplying a fluid at a pressure of 8 to 16 bar through a supply line.
  • the raw material supply method of the present embodiment includes a mixing step of mixing the powdered coal and the binder in a mixer, a supplying step of supplying the mixed raw material to the molding machine through a supply device, a molding step of compressing the raw material into a molding machine to produce coal briquettes,
  • the supplying step by applying heat or cold to the raw material may include a control step of adjusting the viscosity by varying the raw material temperature.
  • the adjusting step may include the step of spraying steam or / and nitrogen gas to the raw material.
  • the binder may be a cellulose ether mixture.
  • the raw material may be heated to a temperature below room temperature to a gel point generation temperature.
  • the supply step may further include an impact step of applying impact energy to the raw material.
  • the impact step may be a structure in which a high pressure fluid is injected into the raw material to apply an impact.
  • the fluid may be nitrogen gas and / or steam.
  • the pressure of the fluid may be 8 to 16 bar.
  • the raw material supply method of the present embodiment includes the steps of mixing the powdered coal and the binder in a mixer, supplying the mixed raw material to the molding machine through a supply device, compressing the raw material into a molding machine to produce coal briquettes, In the step of supplying to the molding machine through the supply device, it may include the step of applying the impact energy to the raw material.
  • the applying of the impact energy may be a structure in which a high pressure fluid is injected to a raw material to apply an impact.
  • the fluid may be nitrogen gas and / or steam.
  • the pressure of the fluid may be 8 to 16 bar.
  • the viscosity of the binder is properly maintained to attach the raw material inside the raw material supply apparatus It can be minimized.
  • the raw material can be prevented from adhering to the angled corners of the outlet to which the raw material is supplied.
  • the raw material feeder In the raw material feeder, the raw material is prevented from being stuck or clogged and the flow of the raw material is improved, so that the raw material can be uniformly and uniformly supplied to the raw machine.
  • FIG. 1 is a schematic side cross-sectional view showing a raw material supply apparatus of a coal briquette manufacturing plant according to the present embodiment.
  • FIG. 2 is a schematic cross-sectional view showing a raw material supply apparatus of the coal briquette manufacturing plant according to the present embodiment.
  • FIG 3 is a schematic view showing a housing provided inside the raw material supply apparatus according to the present embodiment.
  • FIG. 4 is a flowchart schematically showing a raw material supply process according to the present embodiment.
  • 5 is a graph for explaining the binder viscosity for each temperature of the raw material according to the embodiment.
  • FIG. 6 is a graph showing a raw material supply flow according to the present embodiment in comparison with the prior art.
  • FIG. 1 schematically shows a raw material supply apparatus of a coal briquette manufacturing plant according to the present embodiment.
  • the raw material supply apparatus of the manufacturing apparatus of the coal briquette of FIG. 1 is only for illustration of this invention, Comprising: This invention is not limited to this. Therefore, the raw material feeder structure of the coal briquette manufacturing equipment may be variously modified.
  • the coal briquette manufacturing equipment is installed between a mixer (not shown) for mixing powdered coal and a binder and a molding machine 100 for pressing briquettes to prepare briquettes to mix raw materials mixed from the mixer. It includes a supply device for supplying the raw material to the molding machine.
  • the coal briquette manufacturing plant may further include other devices, such as at least one kneader connected to the rear end of the mixer to knead the raw material and a transfer screw for transferring the raw material discharged from the kneader as necessary. have.
  • the supply device 10 forms a receiving space therein, and the lower end of the feeder main body 11, the rotary shaft is rotatably installed in the center of the feeder main body 11 is installed (13), the drive unit 14 is installed on the feeder body and connected to the rotary shaft for rotating the rotary shaft, the wing 15 is installed on the rotary shaft, and the outlet 12 is extended to a molding machine It includes an outlet 16 is discharged.
  • the wing 15 has a long bar-shaped structure, one end is installed on the rotary shaft and the other end is extended in the radial direction of the rotary shaft toward the inner peripheral surface of the feeder body.
  • the wing 15 installed on the rotating shaft 13 is rotated about the rotating shaft, and the raw material contained in the feeder main body 11 exits through the outlet 12 at the lower end of the feeder main body to exit the outlet 16. It is supplied to the molding machine 100 through.
  • the outlet 16 is connected to the top of the bottom outlet 12 of the feeder body of the cylindrical shape and the lower end of the pipe extending in the vertical direction toward the molding machine 100, the raw material passes through To achieve.
  • the outlet 16 has a rectangular cross-sectional structure as shown in FIG.
  • the outlet 16 is a portion in which clogging occurs mainly due to the adhesiveness of the binder mixed with the raw material in a narrow passage through which the raw material passes.
  • the raw material supply apparatus of this embodiment is provided with the control part which changes the temperature of a raw material by applying heat or cold air to the raw material in the said outlet 16. As shown in FIG.
  • the control unit may vary the temperature of the raw material, thereby adjusting the viscosity of the binder mixed in the raw material to improve the flowability of the raw material.
  • the binder mixed with water has a viscous property that the adhesive force drops sharply above a certain temperature, and becomes too viscous below a certain temperature.
  • the viscosity of the binder is appropriately adjusted so that the raw material can flow smoothly without being adhered to the outlet 16.
  • control unit is at least one housing 20 is installed on the inner surface of the outlet 16, connected to the housing 20, the hot or cold fluid to the housing 20 Supply line for supplying, is formed in the housing 20 includes an injection port 22 for injecting a fluid to the raw material in the outlet (16).
  • the supply line is installed in the nitrogen gas line 30 for supplying the nitrogen gas for reducing the raw material temperature, the steam line 32 for supplying the steam for increasing the raw material temperature, the nitrogen gas line 30 and the steam line 32 Valves 31 and 33 for opening and closing each line, and a control unit 34 for controlling and operating each valve.
  • the viscosity of the raw material can be changed to properly control the flow of the raw material.
  • the nitrogen gas line 30 is connected to the housing 20 to supply low temperature nitrogen gas
  • the steam line 32 is also connected to the housing 20 to supply high temperature steam.
  • Valves 31 and 33 are installed in the nitrogen gas line 30 and the steam line 32, respectively, and the valves 31 and 33 are connected to the control unit 34 and driven according to the signals of the control unit 34. It will open and close the line.
  • the nitrogen gas line 30 and the steam line 32 may be connected to each housing 20 through a common line 35.
  • the control unit 34 controls and drives the valves 31 and 33 according to the raw material temperature in the outlet 16.
  • the raw material temperature inside the outlet 16 can be detected, for example, via a temperature sensor (not shown) installed inside the outlet 16.
  • Steam supplied through the steam line 32 is injected into the raw material through the injection hole 22 formed in the housing 20 to increase the temperature of the raw material.
  • the nitrogen gas supplied through the nitrogen gas line 30 is injected into the injection hole 22 formed in the housing 20 as a raw material to lower the temperature of the raw material.
  • the viscosity of the binder mixed in the raw material is changed, and the flowability of the raw material in the outlet 16 is improved.
  • the housing 20 is formed to have a length corresponding to the vertical length of the outlet 16 is installed in the vertical direction on the inner surface of the outlet 16.
  • the housing 20 may be installed at a corner portion of the outlet 16.
  • the housing 20 may be installed at all inner corners of the outlet 16 or as shown in FIG.
  • the installation position and the number of installation of the housing 20 can be variously set, and are not particularly limited.
  • the outlet 16 is a tubular structure having a rectangular cross-sectional structure
  • the housing 20 may have a triangular cross-sectional structure in conformity with the shape of the inner edge of the outlet 16.
  • the housing 20 may be installed in close contact with the edge of the outlet 16 exactly.
  • the housing 20 is installed at the corner portion of the outlet 16 to block the edge, thereby preventing the raw material from stagnating at the corner portion of the outlet 16.
  • the corners of the outlet 16 are bent at right angles, whereby the raw materials are easily stagnated, and are blocked by the housing 20, thereby preventing the stagnation of the raw materials at the corners.
  • the housing 20 extends vertically along the outlet 16.
  • the housing 20 is a hollow structure having an inside, and a supply port 24 through which fluid is supplied to one side thereof is formed, and a front surface, that is, a plurality of surfaces for injecting fluid into the outlet 16, is provided.
  • the injection port 22 is formed.
  • the supply port 24 is connected to the common line 35.
  • the plurality of injection holes 22 are formed at intervals in the vertical direction in the housing 20. Accordingly, the fluid introduced into the housing 20 through the supply port 24 is injected into the outlet 16 through the plurality of injection holes 22 formed in the housing 20.
  • the size and spacing of the injection port 22 can be variously set according to the equipment specifications.
  • the injection hole 22 located at the bottom of the injection hole 22 formed in the housing 20 is upper portion at the bottom of the housing 20 so as to easily discharge the raw material penetrated into the housing 20. It can be formed in the range (D) within 30mm.
  • the raw material introduced into the housing 20 is easily discharged to the outside of the housing 20 through the lower injection port 22. That is, the raw material introduced into the housing 20 through the injection hole 22 in the process of supplying the raw material through the outlet 16 falls to the bottom of the housing 20 by its own weight.
  • the lowermost injection port 22 formed in the housing 20 is formed in the range (D) close to the lower end of the housing 20, the raw material introduced into the housing 20 is the lowest injection port 22 It can be easily discharged through. If the position of the injection hole 22 formed at the lowermost end of the injection hole 22 is out of the range D, the position of the injection hole 22 is too high at the lower end of the housing 20 and flows into the housing 20 and falls downward. The problem that the raw material does not escape through the injection port 22 is generated.
  • the supply apparatus 10 may improve the flowability of the raw materials by applying physical impact to the raw materials and separating them. Can be.
  • the supply device 10 may be provided with an impact unit for applying physical impact energy to the raw material.
  • the impact unit may be a structure using the injection pressure of nitrogen gas or steam supplied into the outlet 16 as the physical impact energy for the raw material as described above.
  • the impact unit may apply a physical impact to the raw material as a separate energy in addition to the injection pressure of nitrogen gas or steam.
  • the supply device may have a structure in which high pressure nitrogen gas and steam are injected through the injection hole 22 of the housing 20 to apply physical impact energy to the raw material.
  • the nitrogen gas through the nitrogen gas line 30 can supply a pressure of 8 to 16bar. More preferably the nitrogen gas may be supplied at a pressure of 8 to 14 bar.
  • steam may be supplied at a pressure of 8 to 16 bar through the steam line 32. More preferably, the steam may be supplied at a pressure of 10 to 16 bar.
  • the nitrogen gas or steam supplied at a high pressure is injected at a high pressure to the raw material through the injection port 22 of the housing 20.
  • the pressure of the fluid injected through the injection port 22 acts as an impact energy on the raw material.
  • the raw material is separated from the inner surface of the outlet 16 by the impact applied by the fluid, and the raw material, which is not lumped and flowed smoothly, is pushed out by the impact energy of the fluid.
  • the raw material mixed with the powdered coal and the binder through the mixing process is supplied to the molding machine through a feeder, and compressed in the molding machine to produce coal briquettes.
  • a feeder In the process of supplying the raw material to the molding machine, it is possible to improve the flowability by adjusting the viscosity of the binder mixed in the raw material or impacting the raw material.
  • the binder mixed in the raw material may include a cellulose ether mixture such as alkyl cellulose or hydroxyalkyl cellulose.
  • a cellulose ether mixture such as alkyl cellulose or hydroxyalkyl cellulose.
  • water may be added to and mixed with the mixture of the binder and the raw material.
  • the raw material mixed in the form of dough is supplied to the molding machine through the raw material supply process by the feeder.
  • heat or cold is applied to the raw material to adjust the viscosity by varying the raw material temperature.
  • the adjusting step by spraying hot steam or / and low temperature nitrogen gas to the raw material, it is possible to change the temperature of the raw material and adjust the viscosity.
  • the high temperature steam acts to increase the temperature of the raw material
  • the low temperature nitrogen gas acts to lower the temperature of the raw material.
  • Figure 5 shows the viscosity characteristics according to the temperature of each concentration of the cellulose ether mixture used as a binder in this embodiment.
  • the viscosity of the binder decreases as the temperature decreases, and the viscosity decreases rapidly in the gel point generation temperature region, which is a specific temperature.
  • Gel point may refer to the temperature at which the viscosity is rapidly weakened to gel.
  • the viscosity decreases with increasing temperature regardless of the concentration of the binder, and the viscosity decreases rapidly in a specific temperature range of 80 ° C. to 85 ° C., which is a gel point generation temperature. It can be seen that.
  • the viscosity of the raw material is lowered or increased, thereby minimizing deterioration of the quality of the coal briquettes and preventing the raw material from adhering to the outlet 16 of the feeder. It will be possible to improve.
  • high temperature steam is supplied to the raw material to increase the temperature of the raw material or lower temperature of the raw material by spraying nitrogen gas at low temperature.
  • the controller 34 opens the valve of the steam line 32 to supply high temperature steam to the outlet 16.
  • the high temperature may be a temperature higher than the current raw material temperature, and may mean a temperature at which the viscosity can be lowered to a desired level, for example, before the gel point is generated, according to the viscosity of the binder.
  • the high temperature steam is injected into the raw material, thereby increasing the temperature of the raw material.
  • the temperature of the binder mixed with the raw material is increased to decrease the viscosity.
  • the flow of raw materials is improved and smooth supply is achieved.
  • the raw material may be heated to a temperature before gel point generation at room temperature by applying steam according to the viscosity characteristics of the binder.
  • the gel point generation temperature is approximately 80-85 ° C. when the binder is a cellulose ether mixture.
  • the viscosity of the cellulose ether mixture as the binder is drastically lowered, and the viscosity of the raw material is lowered.
  • the temperature of the raw material is increased to the gel point generation temperature, the viscosity of the raw material is sharply lowered, thereby degrading the quality of coal briquettes during the molding process.
  • the viscosity of the raw material is high and flowability is not improved. Therefore, by increasing the raw material temperature from room temperature to a temperature below the gel point generation temperature in accordance with the viscosity characteristics of the binder, it is possible to improve the raw material flowability without deteriorating the quality of the molded plate.
  • the control unit 34 opens the valve of the nitrogen gas line 30 Low temperature nitrogen gas is supplied into the outlet 16.
  • the low temperature may mean a temperature lower than the current raw material temperature, preferably a temperature below the gel point temperature of the binder.
  • the low temperature nitrogen gas is injected into the raw material, thereby lowering the temperature of the raw material.
  • the temperature of the binder mixed in the raw material is lowered, so that the viscosity is recovered and the quality of the coal briquettes can be ensured.
  • the viscosity of the binder can be properly adjusted according to the temperature to improve the flowability of the raw material, it is possible to supply the raw material more smoothly by preventing the stagnation of the raw material.
  • the process of applying the impact energy to the raw material may be performed by spraying hot steam or nitrogen gas on the raw material. That is, steam or nitrogen gas injected for controlling the temperature of the raw material in the outlet 16 impacts the raw material, and the raw material falls off and falls off from the inner surface of the outlet 16.
  • supply and interruption may be repeated according to the set time of high-pressure steam or nitrogen gas.
  • the impact energy is repeatedly applied to the raw material, thereby increasing the separation efficiency of the raw material and the discharge efficiency of the agglomerated raw material.
  • the embodiment shows a raw material supply flow result when producing coal briquettes by supplying raw materials while high pressure injection of steam and nitrogen gas into the outlet 16 of the supply apparatus according to the present invention described above.
  • the comparative example shows the raw material feed flow result when producing coal briquettes under the conventional raw material feed without the injection process of steam and nitrogen gas.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
PCT/KR2017/006683 2016-08-29 2017-06-26 성형탄 제조 설비의 원료 공급장치 및 원료 공급 방법 WO2018043893A1 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP17846818.7A EP3505600A4 (en) 2016-08-29 2017-06-26 RAW MATERIAL FEEDING DEVICE AND RAW MATERIAL FEEDING METHOD FOR A PLANT FOR THE PRODUCTION OF CARBON LABELS
CN201780064068.8A CN109844067A (zh) 2016-08-29 2017-06-26 型煤制备设备的供料装置及供料方法

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KR10-2016-0110097 2016-08-29
KR1020160110097A KR101839959B1 (ko) 2016-08-29 2016-08-29 성형탄 제조 설비의 원료 공급장치 및 원료 공급 방법

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EP3505600A1 (en) 2019-07-03
KR20180024250A (ko) 2018-03-08
EP3505600A4 (en) 2019-10-02
CN109844067A (zh) 2019-06-04

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