WO2024060402A1 - 基于废气携废渣激冷钢渣的流态化粉料供送系统及方法 - Google Patents
基于废气携废渣激冷钢渣的流态化粉料供送系统及方法 Download PDFInfo
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- WO2024060402A1 WO2024060402A1 PCT/CN2022/135074 CN2022135074W WO2024060402A1 WO 2024060402 A1 WO2024060402 A1 WO 2024060402A1 CN 2022135074 W CN2022135074 W CN 2022135074W WO 2024060402 A1 WO2024060402 A1 WO 2024060402A1
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- Prior art keywords
- gas
- slag
- waste gas
- steel slag
- waste
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- 239000002893 slag Substances 0.000 title claims abstract description 183
- 239000000843 powder Substances 0.000 title claims abstract description 98
- 239000002912 waste gas Substances 0.000 title claims abstract description 96
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 89
- 239000010959 steel Substances 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000007789 gas Substances 0.000 claims abstract description 51
- 238000007599 discharging Methods 0.000 claims abstract description 45
- 238000010791 quenching Methods 0.000 claims description 66
- 230000000171 quenching effect Effects 0.000 claims description 61
- 239000002699 waste material Substances 0.000 claims description 47
- 238000005303 weighing Methods 0.000 claims description 32
- 230000005415 magnetization Effects 0.000 claims description 24
- 238000011084 recovery Methods 0.000 claims description 24
- 239000003513 alkali Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 15
- 230000008030 elimination Effects 0.000 claims description 12
- 238000003379 elimination reaction Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 11
- 230000000007 visual effect Effects 0.000 claims description 11
- 238000005243 fluidization Methods 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 230000008569 process Effects 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000013022 venting Methods 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910015189 FeOx Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004401 flow injection analysis Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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- 230000007704 transition Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Classifications
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- 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
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/16—Gas pressure systems operating with fluidisation of the materials
-
- 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
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
- B65G53/48—Screws or like rotary conveyors
-
- 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
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/66—Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material
Definitions
- the invention relates to the technical field of workshop conveyor systems and pneumatic pipeline transportation, and in particular to a fluidized powder supply system and method based on waste gas carrying waste slag quenching steel slag.
- the main problems faced by the high-value recycling of steel slag are: (1) poor stability, free calcium oxide (f-CaO) and free magnesium oxide (f-MgO), which easily form alkaline compounds when exposed to water. After being used as cement mixture and other materials, it has poor stability and volume stability; (2) The gelling activity is poor. The steel slag contains 20 to 30% of FeOx, C 3 S, and C 2 S, which have basically no gelling activity. The relative content is reduced and The complete crystal development has few defects; (3) The existing mainstream water quenching slag technology uses a large amount of water (0.8 tons ⁇ 1.2 tons of water/ton of slag) to quickly cool the steel slag. The hot water or steam generated has low heat medium heat (generally ⁇ 100 °C) and contains a large amount of particulate impurities and suspended matter, has poor taste, and the heat energy recovery rate is very unsatisfactory.
- f-CaO free calcium oxide
- f-MgO free magnesium oxide
- Patent No. 202110062908.5 discloses a device and method for converter slag combined with quenching, alkali elimination and magnetization heat recovery, which achieves the coordinated utilization of "slag, iron and heat" resources, and the quality of its quenched slag products has been greatly improved. Has broad market space.
- the present invention provides a fluidized powder supply system and method based on waste gas carrying waste slag quenched steel slag, which reduces the operating consumption of the cold source and in the process of reducing the particle size of the quenched slag product Simultaneously produce higher quality and more active quenching slag products, further reducing costs.
- a first aspect of the present invention provides a fluidized powder supply system based on waste gas carrying waste slag quenching steel slag.
- a fluidized powder supply system based on waste gas carrying waste slag and quenched steel slag including at least: a double-spiral waste slag powder conveyor, a first waste gas pipeline, a second waste gas pipeline, an upper discharge bin, a steel slag powder bin and Converter slag combined quenching, alkali elimination and magnetization heat recovery device;
- the first end of the first waste gas pipeline is used to receive pressurized CO2 - rich waste gas
- the second end of the first waste gas pipeline is connected to the fluidizing air pipeline, the pressurized air pipeline and the supplementary air pipeline respectively.
- the air duct, pressurized air duct and supplementary air duct are connected to the upper discharge bin respectively;
- the first end of the second waste gas pipeline is used to receive pressurized CO2 - rich waste gas
- the second end of the second waste gas pipeline is connected to the gas-gas mixer
- the first end of the dense phase discharge guide pipe is used to communicate with the extension tube. It enters the upper discharge bin to receive the high-pressure dense-phase gas powder flow of rich CO2 waste gas, and the second end of the dense-phase discharge guide pipe is connected to the gas-gas mixer;
- the gas-gas mixer is connected with the secondary mixer, the secondary mixer is connected with the slag powder bin and the converter slag combined quenching, de-alkali and magnetizing heat recovery device, the feeding end of the double-helix variable pitch sealed conveyor is used to receive the slag powder at the discharging end of the slag powder bin, the discharging end of the double-helix variable pitch sealed conveyor extends into the inner space of the upper discharging bin, the discharging end of the double-helix variable pitch sealed conveyor is provided with an upwardly inclined anti-gas cross-talk section, and a bin fluidizer is provided at the inner bottom of the upper discharging bin.
- the steel slag powder silo is equipped with a discharging weighing signal collector, the bracket of the upper discharging silo is connected to the weighing meter, and the weighing meter is connected to the weighing signal collector of the upper discharging silo. , the unloading weighing signal collector and the upper and discharge bin weighing signal collector are both connected to the control terminal.
- At least one first visual observation window is provided on the communication pipeline between the dense phase discharge guide pipe and the gas-gas mixer.
- At least one second visual observation window is provided on the connecting pipeline between the secondary mixer, the steel slag powder silo and the converter slag joint quenching, de-alkali and magnetization heat recovery device.
- the steel slag powder silo and the converter slag combined quenching, de-alkali and magnetization heat recovery device are equipped with a liquid steel slag chute on the top, and a double-layer air injection magnetization sorting conveyor is used to receive the steel slag powder silo and The quenched slag product output from the discharge port of the converter slag combined quenching, alkali-depleting and magnetizing heat recovery device.
- the upper discharge bin is equipped with a bin pressure gauge that communicates with the control terminal.
- the top of the upper discharge bin has a through hole connected to the vent pipeline.
- the vent pipeline is equipped with a vent valve that communicates with the control terminal.
- Each pipeline is equipped with a pressure sensor, Flow meters and electric valves.
- the fluidizing air pipeline is connected to the bottom of the upper discharge bin, the pressurizing air pipeline is connected to the top of the upper discharge bin, and the supplementary air pipeline is connected to the middle or close to the upper discharge bin.
- the central location is connected.
- the second aspect of the present invention provides a fluidized powder supply method based on quenching steel slag with waste gas and waste slag.
- the double-spiral sealed conveyor feeds waste residue powder that meets the requirements. After the waste residue powder accumulates in the anti-gas cross-gas section, it blocks the discharge end of the double-spiral variable-pitch sealed conveyor and falls down due to the extrusion of the material behind it. Enter the inside of the upper and discharge bin;
- the pressurized CO2- rich waste gas is connected to the upward outlet silo, and the waste residue powder in the silo is treated through the silo fluidizer. perform fluidization;
- the fluidized slag powder that meets the mass concentration requirements enters the gas-gas industrial mixer through the dense phase discharge pipe;
- the pressurized CO2- rich waste gas is connected to the gas-gas mixer, and the fluidized slag powder is mixed with the pressurized CO2- rich waste gas;
- the waste gas carries the waste slag to quench the raw material gas, which enters the steel slag powder bin and the converter slag combined quenching, alkali de-alkali and magnetization heat recovery device.
- the supply amount of pressurizing air and supplementary air is automatically supplied according to the pressure signal fed back by the silo pressure gauge of the upper and discharge silos;
- the steel slag powder discharged from the upper discharging bin per unit time is collected by the weighing signal collector of the upper discharging bin and then transmitted to the control terminal, and automatically compared with the data of the discharging weighing signal collector of the steel slag powder bin. Determine the smoothness of the incoming and outgoing materials of steel slag powder.
- the third aspect of the present invention provides a quenching slag production line, including the fluidized powder supply system based on the waste gas carrying waste slag quenching steel slag described in the first aspect of the present invention.
- the fluidized powder supply system and method of the present invention based on the waste gas carrying waste slag quenched steel slag, the fluidized powder supply device of the waste gas carrying waste slag quenched steel slag has automatic feeding, continuous operation, Characteristics include primary high-pressure dense-phase transportation of normal-temperature CO2- rich waste gas, and secondary dilute-phase transportation of medium-temperature and high-pressure CO2 -rich waste gas.
- the quenching medium changes from CO2 -rich waste gas to gas-solid two-phase quenching composed of waste gas and waste residue.
- Medium; the chilling process of liquid steel slag changes from forced convection heat transfer to solid conduction internal and external combined cooling. The cooling capacity is increased by 100 times.
- the crusher uses the aerodynamic force and surface tension of conventional gas quenching to increase the expansion cutting of solid waste slag particles. , the crushing accuracy is increased by 1000 times. More importantly, it carries 1kg of steel slag powder per unit time, which is equivalent to 4.6kg of air, and the volume is reduced by 3.6m 3 , which greatly reduces the input energy consumption of quenching waste gas.
- the waste slag powder and the quenched slag product are of the same quality.
- the appearance of the quenched slag product changes from the original spherical shape.
- waste slag is used as a cold core to quickly quench the liquid slag, and the temperature jumps quickly, basically eliminating the secondary decomposition of C 3 S f-CaO+C 2 S, plus the chilling process inhibits the development of crystal forms, the fine crystals contain internal energy, and the activity of the quenched slag product is further improved.
- the fluidized powder supply system and method of the present invention based on waste gas carrying waste slag quenched steel slag uses the 80°C waste gas from the steel plant itself to be mixed in, which further ensures good pneumatic transportation effects and is more suitable for the layout of the transportation pipeline. With the changes and the emergence of elbows, the safety and reliability of the material supply system have been significantly improved.
- Figure 1 is a schematic structural diagram of a fluidized powder supply system based on waste gas carrying waste slag quenching steel slag provided in Embodiment 1 of the present invention
- Figure 2 is a schematic diagram of the change in the mechanism of the ordinary gas quenching steel slag provided in Embodiment 1 of the present invention and the waste gas-carrying waste slag quenching process of the present invention;
- orientation or positional relationship is based on the orientation or positional relationship shown in the drawings. It is only a relative word determined to facilitate the description of the structural relationship of various components or elements of the present invention. It does not specifically refer to any component or element of the present invention and cannot be understood as a reference to the present invention. Limitations of Invention.
- Embodiment 1 of the present invention provides a fluidized powder supply system based on waste gas carrying waste slag quenched steel slag, including: a double-spiral waste slag powder conveyor, a first waste gas pipeline, The second waste gas pipeline, upper discharge bin, steel slag powder bin and converter slag combined quenching, alkali elimination and magnetization heat recovery device;
- the first end of the first waste gas pipeline is used to receive pressurized quenched CO2 - rich waste gas 1, and the second end of the first waste gas pipeline is connected to the fluidizing air pipeline, the pressurized air pipeline and the supplementary air pipeline respectively.
- the fluidizing air pipeline, the pressurizing air pipeline and the supplementary air pipeline are respectively connected with the upper discharge bin 10;
- the first end of the second waste gas pipeline is used to receive the pressurized normal temperature fluidized CO2- rich waste gas 23.
- the second end of the second waste gas pipeline is connected to the gas-gas industrial mixer 3.
- the dense phase discharge guide pipe 9 The first end is used to extend into the upper discharge bin to receive the high-pressure dense-phase gas powder flow of rich CO 2 waste gas, and the second end of the dense-phase discharge guide pipe 9 is connected to the gas-gas industrial mixer 3;
- the gas-gas industrial mixer 3 is connected to the secondary mixer 13, the secondary mixer 13 is connected to the steel slag powder bin and the converter slag combined quenching and alkali elimination magnetization heat recovery device 14, and the entrance of the double helix variable pitch sealed conveyor 7
- the discharging end is used to receive the steel slag powder from the discharging end of the steel slag powder bin 5.
- the discharging end of the double helix variable pitch sealed conveyor 7 extends into the internal space of the upper discharging bin 10.
- the discharging end of the double helical variable pitch sealed conveyor 7 The end is provided with an upwardly inclined anti-gas section, and the inner bottom of the upper discharge bin 10 is provided with a bin fluidizer.
- the steel slag powder bin is equipped with a discharging weighing signal collector 6, the upper discharging bin bracket 20 is connected to the weighing meter, the weighing meter is connected to the upper discharging bin weighing signal collector 21, and the lower discharging bin bracket 20 is connected to the weighing signal collector 21.
- the material weighing signal collector 6 and the upper and discharge bin weighing signal collector 21 are both communicatively connected with the centralized control system 24 (i.e., the control terminal).
- At least one first visual observation window 2 is provided on the connecting pipeline between the dense phase discharge guide pipe 9 and the gas-gas industrial mixer 3 .
- At least one second visual observation window 25 is provided on the connecting pipeline between the secondary mixer, the steel slag powder bin and the converter slag combined quenching, desalination and magnetization heat recovery device.
- a liquid steel slag chute 12 is provided on the top of the combined quenching, de-alkali, and magnetization heat recovery device 14 for the steel slag powder warehouse and converter slag, and a double-layer airflow blowing magnetization sorting conveyor 18 is used to receive the steel slag powder warehouse and the converter slag.
- the slag is combined with the quenched slag product 19 output from the discharge port of the quenching, alkali-depleting and magnetizing heat recovery device 14.
- the upper discharge bin 10 is provided with a bin pressure gauge 8 that communicates with the control terminal 24 .
- each pipeline is provided with a pressure sensor, a flow meter and an electric valve.
- the fluidizing air pipeline is connected to the bottom of the upper discharge bin 10
- the pressurizing air pipeline is connected to the top of the upper discharge bin 10
- the supplementary air pipeline is connected to or near the middle of the upper discharge bin 10
- the positions are connected; the fluidizing air pipeline is used to introduce fluidizing air 22, the pressurizing air pipeline is used to introduce charging air 16, the supplementary air pipeline is used to introduce supplementary air 17, and the normal temperature fluidization rich
- the CO 2 waste gas 23 provides fluidizing air 22, pressurizing air 16 and supplementary air 17 according to the metering ratio to ensure the sufficient fluidization state of scrap steel slag powder.
- Embodiment 2 is a diagrammatic representation of Embodiment 1:
- Embodiment 2 of the present invention provides a fluidized powder supply method based on waste gas carrying waste slag quenching steel slag, using the fluidized powder supply system based on waste gas carrying waste slag quenching steel slag described in Example 1, Includes the following processes:
- the double-helix sealed conveyor 7 feeds waste slag powder (50 ⁇ m-70 ⁇ m) that meets the requirements. After the material is accumulated in the anti-gas section, the discharge end of the double-helix variable pitch sealed conveyor 7 is blocked, and the material falls into the upper discharge bin 10 under the extrusion of the rear material;
- the lower part of the upper discharge bin 10 is provided with a bin fluidizer 11, which is connected to the lime kiln in the factory area to discharge CO2 - rich waste gas (0.5-1.0MPa) to fluidize the waste slag powder in the bin;
- Fluidized slag powder (solid-to-gas ratio 60 to 200) that meets the mass concentration requirements is transported through pipelines and enters the gas-gas industrial mixer 3;
- the CO2 - rich waste gas emitted from the lime kiln in the factory is connected, and after being pressurized (0.5 ⁇ 1.0MPa), it is sent to the gas-gas industrial mixer 3 (solid-gas ratio 30 ⁇ 80) according to the concentration ratio, and is fully mixed with the fluidized slag powder air flow. ;
- the waste gas carrying waste slag is formed to quench the raw material gas and enters the liquid steel slag gas quenching chamber for operation.
- the pressure of the material tank is maintained constant, ensuring that the material enters the stable conveying stage as soon as possible. Important monitoring points The pressure remains basically unchanged, and the total conveying pressure difference is controlled to maintain the unloading weight change curve of the discharge bin and steel slag sub-bin as close to a straight line;
- the CO2- rich waste gas is first divided into two paths, one is used as normal temperature fluidized CO2- rich waste gas 23 and is measured as fluidizing air 22, pressurized air 16 and supplementary air 17 respectively, and the other is pressurized and quenched CO2- rich waste gas to transport flow Calculation 1 is used as the quenching air, which forms a gas-solid two-phase quenching medium with the high-pressure dense-phase gas powder flow, and enters the converter slag combined with the quenching alkali elimination magnetization heat recovery device 14 to chill and quench the liquid steel slag;
- the fluidizing air 22, the charging air 16 and the supplementary air 17 are respectively connected to the bottom, top and upper part of the upper discharge bin 10, and the supply of the charging air 16 and the supplementary air 17 is automatically controlled according to the pressure signal fed back by the bin pressure gauge 8. quantity to maintain a relatively stable pressure level inside the upper discharging bin 10, and an automatic vent valve 15 is provided on the top of the upper discharging bin 10 for special pressure relief requirements such as maintenance;
- the material in the anti-gas cross section falls into the upper discharge bin 10 under the extrusion of the rear material.
- the added amount is collected by the blanking and weighing signal collector 6 and then transmitted to the centralized control system 24 (i.e., the control terminal);
- the multiple silo fluidizers 11 provided at the bottom of the upper discharging bin 10 fluidize the steel slag powder inside the upper discharging bin 10 to form a high-pressure dense phase of normal temperature CO2 - rich waste gas.
- the gas powder flow 4 passes through the dense phase discharge pipe 9 and is sent to the gas-gas industrial mixer 3 through the pipeline;
- An upper discharging bin bracket 20 is provided at the bottom of the upper discharging bin 10 and is connected to a weighing meter.
- the weighing meter communicates with the upper discharging bin weighing signal collector 21.
- the steel slag powder discharged from the upper discharging bin 10 per unit time is The upper and discharge bin weighing signal collector 21 collects data and then transmits it to the centralized control system 24 (i.e., control terminal), and automatically compares it with the data of the unloading and weighing signal collector 6 to determine the incoming and outgoing of steel slag powder. patency;
- the air powder flow in the pipe is illuminated by a high-intensity light source, and the flow pattern of the material in the pipe can be clearly observed through the transparent quartz glass tube of the first visual observation window 2 and the first visual observation window 25.
- the quartz glass tube horizontally
- the cross-sectional particle local average velocity and concentration distribution signals are transmitted to the centralized control system 24 (i.e., the control terminal);
- the liquid steel slag discharged from the converter, etc. is poured from the slag bag into the liquid steel slag chute 12, and under the action of gravity, a thin liquid slag belt is formed and flows into the upper part of the converter slag combined quenching, de-alkali and magnetization heat recovery device 14, from the secondary mixer 13
- the discharged CO2 - rich waste gas dilute phase gas powder flow comes into violent contact with the molten steel slag, causing high-pressure impact, segmentation, collision, granulation, and rapid cooling and high-temperature carbonation and alkali elimination on the molten steel slag.
- the steel slag is rapidly cooled and quenched to form a quenched slag product. 19. After falling onto the double-layer air blowing magnetization sorting conveyor 18, it is discharged to the steel slag bin for storage.
- Embodiment 3 of the present invention provides a quenching slag production line, including the fluidized powder supply system based on waste gas carrying waste slag quenching steel slag described in Embodiment 1 of the present invention.
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Abstract
提供了一种基于废气携废渣激冷钢渣的流态化粉料供送系统及方法，属于车间输送机系统以及气动管道输送技术领域。第一废气管路用于接收加压富 CO2废气，经流化风管路、充压风管路和补充风管路与上出料仓（10）连通；第二废气管路用于接收加压富CO2废气并与气-气混合器（3）连通，密相出料引管（9）的第一端用于伸入到上出料仓（10）中接收富CO2废气高压密相气粉流，密相出料引管（9）的第二端与气-气混合器（3）连通；双螺旋变螺距密封输送机（7）的出料端伸入上出料仓（10）的内部空间，双螺旋变螺距密封输送机（7）的出料端设有向上倾斜的防串气段。降低了冷源运行消耗，在降低淬渣产品粒度的过程中同步生产出更优质活性更强的淬渣产品。
Description
本发明要求于2022年9月22日提交中国专利局、申请号为202211156217.2、发明名称为“基于废气携废渣激冷钢渣的流态化粉料供送系统及方法”的中国专利申请的优先权，其全部内容通过引用结合在本发明中。
本发明涉及车间输送机系统以及气动管道输送技术领域，特别涉及一种基于废气携废渣激冷钢渣的流态化粉料供送系统及方法。
本部分的陈述仅仅是提供了与本发明相关的背景技术，并不必然构成现有技术。
随着碳减排政策实施，水泥压缩减产，玄武岩矿山开采受限，粉煤灰减少，建材、交通原材料急需开源节流，大宗钢渣固废迎来新的发展机会。
目前，钢渣高值资源化回用面临的卡脖子问题主要有：(1)安定性不良，游离氧化钙(f-CaO)和游离氧化镁(f-MgO)，遇水易形成碱性化合物，用作水泥混合材等材料后安定性、体积稳定性差；(2)胶凝活性差，钢渣中含20～30％的基本无胶凝活性的FeOx、C
3S、C
2S相对含量减少且晶体发育完整缺陷少；(3)现有的主流水淬渣技术，采用大量水(0.8吨～1.2吨水/吨渣)急冷钢渣，产生的热水或蒸汽，热介质热量低(一般<100℃)且含有大量颗粒杂质和悬浮物，品味差， 热能回收率非常不理想。
发明人发现，风淬或富CO
2废气粒化钢渣技术水消耗量大幅降低，总热回收率较高，余热可用于发电且后续节省淬渣产品的干燥耗费等优势，顺应了钢铁高质量发展的战略需求，专利号202110062908.5公开了一种转炉渣联用淬化消碱磁化热回收装置和方法，统筹实现了“渣、铁、热”资源化利用，其淬渣产品品质得到了大幅提升，具有广阔的市场空间。
但是，发明人在上述装备的实际运行中发现，其仍然存在废气消耗量大和高压运行成本较高等问题，与水淬渣技术的运行成本相比还存在较大的差距。
发明内容
为了解决现有技术的不足，本发明提供了一种基于废气携废渣激冷钢渣的流态化粉料供送系统及方法，降了低冷源运行消耗，在降低淬渣产品粒度的过程中同步生产出更优质活性更强的淬渣产品，进一步的降低了成本。
为了实现上述目的，本发明采用如下技术方案：
本发明第一方面提供了一种基于废气携废渣激冷钢渣的流态化粉料供送系统。
一种基于废气携废渣激冷钢渣的流态化粉料供送系统，至少包括：双螺旋废渣粉输送机、第一废气管路、第二废气管路、上出料仓、钢渣粉仓以及转炉渣联用淬化消碱磁化热回收装置；
第一废气管路的第一端用于接收加压富CO
2废气，第一废气管路 的第二端分别与流化风管路、充压风管路和补充风管路连通，流化风管路、充压风管路和补充风管路分别与上出料仓连通；
第二废气管路的第一端用于接收加压富CO
2废气，第二废气管路的第二端与气-气混合器连通，密相出料引管的第一端用于与伸入到上出料仓中接收富CO
2废气高压密相气粉流，密相出料引管的第二端与气-气混合器连通；
气-气混合器与二次混合器连通，二次混合器与钢渣粉仓以及转炉渣联用淬化消碱磁化热回收装置连通，双螺旋变螺距密封输送机的入料端用于接收钢渣粉仓出料端的钢渣粉料，双螺旋变螺距密封输送机的出料端伸入上出料仓的内部空间，双螺旋变螺距密封输送机的出料端设有向上倾斜的防串气段，上出料仓的内侧底部设有料仓流化器。
作为可选的一种实现方式，钢渣粉仓设有下料称重信号采集器，上出料仓的支架与称重计量器连接，称重计量器与上出料仓称重信号采集器连接，下料称重信号采集器与上出料仓称重信号采集器均与控制终端通信连接。
作为可选的一种实现方式，密相出料引管与气-气混合器之间的连通管路上设有至少一个第一可视化观测窗。
作为可选的一种实现方式，二次混合器与钢渣粉仓以及转炉渣联用淬化消碱磁化热回收装置的连通管路上，设有至少一个第二可视化观测窗。
作为可选的一种实现方式，钢渣粉仓以及转炉渣联用淬化消碱磁化热回收装置的顶部设有液态钢渣溜槽，双层气流喷吹磁化分选传输 机用于接收钢渣粉仓以及转炉渣联用淬化消碱磁化热回收装置的出料口输出的淬渣产品。
作为可选的一种实现方式，上出料仓设有与控制终端通信的料仓压力表。
作为可选的一种实现方式，上出料仓的顶部开有与放空管路连通的通孔，放空管路上设有与控制终端通信的放空阀，各管路均设有压力传感器、流量计和电动阀。
作为可选的一种实现方式，流化风管路与上出料仓的底部连通，充压风管路与上出料仓的顶部连通，补充风管路与上出料仓的中部或者靠近中部的位置连通。
本发明第二方面提供了一种基于废气携废渣激冷钢渣的流态化粉料供送方法。
一种基于废气携废渣激冷钢渣的流态化粉料供送方法，利用本发明第一方面所述的基于废气携废渣激冷钢渣的流态化粉料供送系统，包括以下过程：
双螺旋密封型输送机送入符合要求的废渣粉料，废渣粉料在防串气段堆积后对双螺旋变螺距密封输送机的出料端进行封堵，并在后方物料的挤压作用下落入上出料仓内部；
通过第一废气管路以及流化风管路、充压风管路和补充风管路，向上出料仓接入加压富CO
2废气，通过料仓流化器对料仓内的废渣粉进行流化；
符合质量浓度要求的流化态渣粉，经密相出料引管进入气-气工 业混合器；
通过第二废气管路，向气-气混合器接入加压富CO
2废气，流态化渣粉与加压富CO
2废气混合；
二次混合器对气-气工业混合器的输出进行混合强化后，形成废气携废渣激冷原料气，进入钢渣粉仓以及转炉渣联用淬化消碱磁化热回收装置。
作为可选的一种实现方式，充压风和补充风的补给量根据上出料仓的料仓压力表反馈的压力信号自动补给；
上出料仓单位时间排出的钢渣粉由上出料仓的称重信号采集器进行数据采集后传入控制终端，并与钢渣粉仓的下料称重信号采集器的数据进行自动比对，进行钢渣粉料的进出料通畅情况判断。
本发明第三方面提供了一种淬渣生产线，包括本发明第一方面所述的基于废气携废渣激冷钢渣的流态化粉料供送系统。
与现有技术相比，本发明的有益效果是：
1、本发明所述的基于废气携废渣激冷钢渣的流态化粉料供送系统及方法，废气携废渣激冷钢渣的流态化粉料供送装置，具有自动给料、连续运行、一次常温富CO
2废气高压密相输送、二次中温高压富CO
2废气稀相输送等特点，尤其是，淬化介质由富CO
2废气，变为废气携废渣组成的气固两相淬化介质；液态钢渣的激冷过程由强制对流传热为主变为固体传导内外联合冷却，冷却能力提升100倍，破碎机理由常规气淬的气动力和表面张力增加了携带固体废渣颗粒的膨胀切削，破碎准数提升1000倍，更为主要的是，单位时间携带1kg钢渣 粉，等同于4.6公斤空气，体积减少3.6m
3，大幅降低了淬化废气的输入能耗。
2、本发明所述的基于废气携废渣激冷钢渣的流态化粉料供送系统及方法，废渣粉与淬渣产品同质，但因冷却速度急剧提升，淬渣产品外观由原来的球形演变为随机不规则形状，有力的增强了与沥青的界面过渡区的强度，且减少了油石比消耗；废渣作为冷芯快速激冷液态渣，温度跃迁快，基本杜绝了C
3S二次分解f-CaO+C
2S，加上激冷过程抑制晶型发育，细晶蕴藏内能，淬渣产品活性得到了进一步提升。
3、本发明所述的基于废气携废渣激冷钢渣的流态化粉料供送系统及方法，使用钢厂自身80℃废气的混入，进一步保证了良好的气力输送效果，更适应输送管道布局的变化以及弯头的出现，物料供送系统的安全和可靠性得到显著提升。
本发明附加方面的优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
构成本发明的一部分的说明书附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。
图1为本发明实施例1提供的基于废气携废渣激冷钢渣的流态化粉料供送系统的结构示意图；
图2为本发明实施例1提供的普通气淬钢渣与本发明废气携废渣淬渣过程作用机理变化示意图；
其中，1、加压淬化富CO
2废气；2、第一可视化观测窗；3、气-气工业混合器；4、常温富CO
2废气高压密相气粉流；5、钢渣粉仓；6、下料称重信号采集器；7、双螺旋变螺距密封输送机；8、料仓压力表；9、密相出料引管；10、上出料仓；11、料仓流化器；12、液态钢渣溜槽；13、二次混合器；14、转炉渣联用淬化消碱磁化热回收装置；15、放空阀；16、充压风；17、补充风；18、双层气流喷吹磁化分选传输机；19、淬渣产品；20、上出料仓支架；21、上出料仓称重信号采集器；22、流化风；23、常温流化富CO
2废气；24、集中控制系统；25-第二可视化观测窗。
下面结合附图与实施例对本发明作进一步说明。
应该指出，以下详细说明都是示例性的，旨在对本发明提供进一步的说明。除非另有指明，本文使用的所有技术和科学术语具有与本发明所属技术领域的普通技术人员通常理解的相同含义。
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本发明的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、操作、器件、组件和/或它们的组合。
在本发明中，术语如“上”、“下”、“左”、“右”、“前”、“后”、“竖直”、“水平”、“侧”、“底”等指示的方位或位置关系为基于附图所示的方位或位置关系，只是为了便于叙述本发明各 部件或元件结构关系而确定的关系词，并非特指本发明中任一部件或元件，不能理解为对本发明的限制。
本发明中，术语如“固接”、“相连”、“连接”等应做广义理解，表示可以是固定连接，也可以是一体地连接或可拆卸连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的相关科研或技术人员，可以根据具体情况确定上述术语在本发明中的具体含义，不能理解为对本发明的限制。
在不冲突的情况下，本发明中的实施例及实施例中的特征可以相互组合。
实施例1：
如图1和图2所示，本发明实施例1提供了一种基于废气携废渣激冷钢渣的流态化粉料供送系统，包括：双螺旋废渣粉输送机、第一废气管路、第二废气管路、上出料仓、钢渣粉仓以及转炉渣联用淬化消碱磁化热回收装置；
第一废气管路的第一端用于接收加压淬化富CO
2废气1，第一废气管路的第二端分别与流化风管路、充压风管路和补充风管路连通，流化风管路、充压风管路和补充风管路分别与上出料仓10连通；
第二废气管路的第一端用于接收加压常温流化富CO
2废气23，第二废气管路的第二端与气-气工业混合器3连通，密相出料引管9的第一端用于与伸入到上出料仓中接收富CO
2废气高压密相气粉流，密相出料引管9的第二端与气-气工业混合器3连通；
气-气工业混合器3与二次混合器13连通，二次混合器13与钢渣粉 仓以及转炉渣联用淬化消碱磁化热回收装置14连通，双螺旋变螺距密封输送机7的入料端用于接收钢渣粉仓5出料端的钢渣粉料，双螺旋变螺距密封输送机7的出料端伸入上出料仓10的内部空间，双螺旋变螺距密封输送机7的出料端设有向上倾斜的防串气段，上出料仓10的内侧底部设有料仓流化器。
本实施例中，钢渣粉仓设有下料称重信号采集器6，上出料仓支架20与称重计量器连接，称重计量器与上出料仓称重信号采集器21连接，下料称重信号采集器6与上出料仓称重信号采集器21均与集中控制系统24(即控制终端)通信连接。
本实施例中，密相出料引管9与气-气工业混合器3之间的连通管路上设有至少一个第一可视化观测窗2。
本实施例中，二次混合器与钢渣粉仓以及转炉渣联用淬化消碱磁化热回收装置的连通管路上，设有至少一个第二可视化观测窗25。
可以理解的，在其他一些实施方式中，也可以在其他管路中设置更多的可视化观测窗以实现更好的过程监测，本领域技术人员可以根据具体工况进行选择设计，这里不再赘述。
本实施例中，钢渣粉仓以及转炉渣联用淬化消碱磁化热回收装置14的顶部设有液态钢渣溜槽12，双层气流喷吹磁化分选传输机18用于接收钢渣粉仓以及转炉渣联用淬化消碱磁化热回收装置14的出料口输出的淬渣产品19。
本实施例中，上出料仓10设有与控制终端24通信的料仓压力表8。
本实施例中，上出料仓10的顶部开有与放空管路连通的通孔，放 空管路上设有与控制终端通信的放空阀15，本实施例中，各管路均设有压力传感器、流量计和电动阀。
本实施例中，流化风管路与上出料仓10的底部连通，充压风管路与上出料仓10的顶部连通，补充风管路与上出料仓10的中部或者靠近中部的位置连通；流化风管路中用于通入流化风22，充压风管路中用于通入充压风16，补充风管路中用于通入补充风17，常温流化富CO
2废气23按照计量比提供流化风22、充压风16和补充风17，以保障废钢渣粉的充分流化状态。
实施例2：
本发明实施例2提供了一种基于废气携废渣激冷钢渣的流态化粉料供送方法，利用实施例1所述的基于废气携废渣激冷钢渣的流态化粉料供送系统，包括以下过程：
双螺旋密封型输送机7送入符合要求的废渣粉料(50μm～70μm)，物料在防串气段堆积后对双螺旋变螺距密封输送机7的出料端进行封堵，并在后方物料的挤压作用下落入上出料仓10内部；
上出料仓10下部带有料仓流化器11，接入厂区石灰窑排放富CO
2废气(0.5～1.0MPa)对料仓内的废渣粉进行流化；
符合质量浓度要求的流化态渣粉(固气比60～200)，经管道输送后，进入气-气工业混合器3；
引接厂区石灰窑排放富CO
2废气，加压后(0.5～1.0MPa)按照浓度配比送入气-气工业混合器3(固气比30～80)，与流态化渣粉气流充分混合；
尾部设置二次混合器13进行混合强化后，形成废气携废渣激冷原料气，进入液态钢渣气淬室进行作业。
更具体的，包括以下过程：
通过调节淬化和流化富CO
2废气的充压风量、流化风量和补充风量以及各气路阀门的开度，维持料罐的压力恒定，保障物料尽快进入稳定输送阶段，重要监测点的压力基本不变，控制总输送压差，维持出料仓和钢渣分仓的下料重量变化曲线近似于直线；
基于流化过程中的床层压降和床高变化曲线，确定颗粒流化特性、临界流化风速与流化压降等，计算流化风量、补充风量和冲压风量；
富CO
2废气首先分为两路，一路作为常温流化富CO
2废气23计量后分别作为流化风22、充压风16和补充风17，一路经加压淬化富CO
2废气输送流量计1作为淬化风，与高压密相气粉流组成气固两相淬化介质，进入转炉渣联用淬化消碱磁化热回收装置14对液态钢渣进行激冷淬化；
流化风22、充压风16和补充风17分别接入上出料仓10的底部、顶部和上部，根据料仓压力表8反馈的压力信号自动控制充压风16和补充风17的补给量，维持上出料仓10的内部处于相对平稳的压力水平，上出料仓10顶部设置自动放空阀15用以检修等特殊泄压需求；
符合粒度要求的废钢渣粉经钢渣粉仓5落入双螺旋变螺距密封输送机7后，防串气段的物料在后方物料的挤压作用下落入上出料仓10，钢渣粉仓5的加入量由下料称重信号采集器6进行数据采集后传入集中控制系统24(即控制终端)；
流化风22经计量控制后，由上出料仓10底部设置的多个料仓流化器11，对上出料仓10内部的钢渣粉进行流化，形成常温富CO
2废气高压密相气粉流4，经密相出料引管9，经管道送入气-气工业混合器3；
上出料仓10底部设置上出料仓支架20并与称重计量器连接，称重计量器与上出料仓称重信号采集器21通信，上出料仓10单位时间排出的钢渣粉由上出料仓称重信号采集器21进行数据采集后传入集中控制系统24(即控制终端)，并与下料称重信号采集器6的数据进行自动比对，判断钢渣粉料的进出料通畅情况；
管道内的气粉流在高强度光源的照射下，透过第一可视化观测窗2和第一可视化观测窗25透明的石英玻璃管可以清晰地观察到管内物料的流动型态，石英玻璃管横截面的颗粒局部平均速度和浓度分布信号传入集中控制系统24(即控制终端)；
当高压密相气粉流进入气-气工业混合器3与加压淬化富CO
2废气1充分混合后，并经二次混合器13强化混合后形成二次中温高压富CO
2废气稀相输送，经计量后，进入转炉渣联用淬化消碱磁化热回收装置14；
转炉等排放的液态钢渣由渣包倒入液态钢渣溜槽12，并在重力作用下，形成薄的液体渣带流入转炉渣联用淬化消碱磁化热回收装置14的上部，从二次混合器13排出的富CO
2废气稀相气粉流，与熔融钢渣剧烈接触，对熔融钢渣形成高压冲击、分割、碰撞、粒化与急冷高温碳酸化消碱等作用，钢渣急冷淬化形成淬渣产品19，落入到双层气流喷吹磁化分选传输机上18后，排至钢渣仓存放。
实施例3：
本发明实施例3提供了一种淬渣生产线，包括本发明实施例1所述的基于废气携废渣激冷钢渣的流态化粉料供送系统。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
Claims (10)
- 一种基于废气携废渣激冷钢渣的流态化粉料供送系统，其特征在于：至少包括：双螺旋废渣粉输送机、第一废气管路、第二废气管路、上出料仓、钢渣粉仓以及转炉渣联用淬化消碱磁化热回收装置；第一废气管路的第一端用于接收加压富CO 2废气，第一废气管路的第二端分别与流化风管路、充压风管路和补充风管路连通，流化风管路、充压风管路和补充风管路分别与上出料仓连通；第二废气管路的第一端用于接收加压富CO 2废气，第二废气管路的第二端与气-气混合器连通，密相出料引管的第一端用于伸入到上出料仓中接收富CO2废气高压密相气粉流，密相出料引管的第二端与气-气混合器连通；气-气混合器与二次混合器连通，二次混合器与钢渣粉仓以及转炉渣联用淬化消碱磁化热回收装置连通，双螺旋变螺距密封输送机的入料端用于接收钢渣粉仓出料端的钢渣粉料，双螺旋变螺距密封输送机的出料端伸入上出料仓的内部空间，双螺旋变螺距密封输送机的出料端设有向上倾斜的防串气段，上出料仓的内侧底部设有料仓流化器。
- 如权利要求1所述的基于废气携废渣激冷钢渣的流态化粉料供送系统，其特征在于：钢渣粉仓设有下料称重信号采集器，上出料仓的支架与称重计量器连接，称重计量器与上出料仓称重信号采集器连接，下料称重信号采集器与上出料仓称重信号采集器均与控制终端通信连接。
- 如权利要求1所述的基于废气携废渣激冷钢渣的流态化粉料 供送系统，其特征在于：密相出料引管与气-气混合器之间的连通管路上设有至少一个第一可视化观测窗；二次混合器与钢渣粉仓以及转炉渣联用淬化消碱磁化热回收装置的连通管路上，设有至少一个第二可视化观测窗。
- 如权利要求1所述的基于废气携废渣激冷钢渣的流态化粉料供送系统，其特征在于：钢渣粉仓以及转炉渣联用淬化消碱磁化热回收装置的顶部设有液态钢渣溜槽，双层气流喷吹磁化分选传输机用于接收钢渣粉仓以及转炉渣联用淬化消碱磁化热回收装置的出料口输出的淬渣产品。
- 如权利要求1所述的基于废气携废渣激冷钢渣的流态化粉料供送系统，其特征在于：上出料仓设有与控制终端通信的料仓压力表。
- 如权利要求1所述的基于废气携废渣激冷钢渣的流态化粉料供送系统，其特征在于：上出料仓的顶部开有与放空管路连通的通孔，放空管路上设有与控制终端通信的放空阀，各管路均设有压力传感器、流量计和电动阀。
- 如权利要求1所述的基于废气携废渣激冷钢渣的流态化粉料供送系统，其特征在于：流化风管路与上出料仓的底部连通，充压风管路与上出料仓的顶部连通，补充风管路与上出料仓的中部或者靠近中部的位置连通。
- 一种基于废气携废渣激冷钢渣的流态化粉料供送方法，其特 征在于：利用权利要求1-7任一项所述的基于废气携废渣激冷钢渣的流态化粉料供送系统，包括以下过程：双螺旋密封型输送机送入符合要求的废渣粉料，废渣粉料在防串气段堆积后对双螺旋变螺距密封输送机的出料端进行封堵，并在后方物料的挤压作用下落入上出料仓内部；通过第一废气管路以及流化风管路、充压风管路和补充风管路，向上出料仓接入加压富CO 2废气，通过料仓流化器对料仓内的废渣粉进行流化；符合质量浓度要求的流态化渣粉，经密相出料引管进入气-气混合器；通过第二废气管路，向气-气混合器接入加压富CO 2废气，流态化渣粉与加压富CO 2废气混合；二次混合器对气-气混合器的输出进行混合强化后，形成废气携废渣激冷原料气，进入钢渣粉仓以及转炉渣联用淬化消碱磁化热回收装置。
- 如权利要求8所述的基于废气携废渣激冷钢渣的流态化粉料供送方法，其特征在于：充压风和补充风的补给量根据上出料仓的料仓压力表反馈的压力信号自动补给；上出料仓单位时间排出的钢渣粉由上出料仓的称重信号采集器进行数据采集后传入控制终端，并与钢渣粉仓的下料称重信号采集器的数据进行自动比对，进行钢渣粉料的进出料通畅情况判断。
- 一种淬渣生产线，其特征在于：包括权利要求1-7任一项所述的基于废气携废渣激冷钢渣的流态化粉料供送系统。
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009227495A (ja) * | 2008-03-20 | 2009-10-08 | Jfe Steel Corp | スラグ処理方法 |
| DE102008056076A1 (de) * | 2008-11-05 | 2010-05-12 | Coperion Gmbh | Fördersystem |
| CN109207659A (zh) * | 2018-10-06 | 2019-01-15 | 天津大学 | 一种熔融渣的粒化装置及热回收方法 |
| CN112899420A (zh) * | 2021-01-18 | 2021-06-04 | 山东大学 | 一种转炉渣联用淬化消碱磁化热回收装置和方法 |
| CN213504855U (zh) * | 2020-10-22 | 2021-06-22 | 济南海鹰机电制造有限公司 | 一种智控型防堵排堵气力输送系统 |
| CN114890691A (zh) * | 2022-05-09 | 2022-08-12 | 山东大学 | 一种转炉渣烟气淬化固碳热回收装置和方法 |
| CN115231316A (zh) * | 2022-09-22 | 2022-10-25 | 山东大学 | 基于废气携废渣激冷钢渣的流态化粉料供送系统及方法 |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3458331B2 (ja) * | 2000-02-25 | 2003-10-20 | 住友重機械工業株式会社 | 徐冷スラグの製造方法及びそのためのロータリーキルンシステム |
| CN203700451U (zh) * | 2014-01-26 | 2014-07-09 | 招远市招金金合科技有限公司 | 一种高铁硫酸磁化烧渣的回收系统 |
| JP6109796B2 (ja) * | 2014-09-16 | 2017-04-05 | 三菱日立パワーシステムズ株式会社 | 粉体搬送装置及びチャー回収装置 |
| CN204824761U (zh) * | 2015-07-02 | 2015-12-02 | 中国东方电气集团有限公司 | 一种干煤粉加压密相输送系统 |
| CN206580299U (zh) * | 2016-12-21 | 2017-10-24 | 浙江智的智能装备技术有限公司 | 一种粉体助剂密相气力输送系统 |
| CN107287370B (zh) * | 2017-06-14 | 2019-02-05 | 东北大学 | 干式粒化回收高炉渣余热的“双淬”装置和方法 |
| KR102113387B1 (ko) * | 2018-02-12 | 2020-05-20 | (주)유진에코씨엘 | 분사위치가 조절되는 분사노즐이 구비된 제강슬래그용 퀀칭 시스템 |
| CN109226185B (zh) * | 2018-09-13 | 2024-09-06 | 如东中惠再生资源有限公司 | 油漆废渣回收利用系统装置及其生产工艺 |
| CN112146446B (zh) * | 2019-06-28 | 2022-03-18 | 宝山钢铁股份有限公司 | 基于多介质耦合的高炉熔渣粒化换热装置 |
| CN210162782U (zh) * | 2019-07-01 | 2020-03-20 | 唐山金岳通科技有限公司 | 一种利用热烟气进行高炉水渣输送运输的系统 |
| CN111020077B (zh) * | 2019-12-04 | 2021-07-13 | 西安交通大学 | 一种液态熔渣余热回收系统 |
| CN111270026A (zh) * | 2020-02-04 | 2020-06-12 | 北京科技大学 | 高炉熔渣干式余热回收系统及方法 |
| CN111517678A (zh) * | 2020-03-25 | 2020-08-11 | 安徽华塑股份有限公司 | 一种利用水泥窑尾高温气烘干和选粉电石渣的装置及工艺 |
| CN111471817A (zh) * | 2020-04-24 | 2020-07-31 | 河钢股份有限公司 | 一种改善钢渣安定性同时回收熔融钢渣物理热的气淬方法 |
| CN212923525U (zh) * | 2020-06-19 | 2021-04-09 | 江苏恩菲环保装备有限公司 | Ovd工艺废气处理气力输灰装置 |
| CN111686904A (zh) * | 2020-07-13 | 2020-09-22 | 云南锡业股份有限公司锡业分公司 | 一种无废水排放的贫锡炉渣处理系统及处理方法 |
| CN111795547A (zh) * | 2020-07-28 | 2020-10-20 | 河南神马尼龙化工有限责任公司 | 一种用于己二酸干燥的流化装置 |
| CN111979366B (zh) * | 2020-08-25 | 2024-02-13 | 山东盛阳工程机械有限公司 | 一种液态钢渣风淬粒化生产线及其生产工艺 |
| CN111947127B (zh) * | 2020-09-08 | 2024-09-03 | 青岛达能环保设备股份有限公司 | 基于气水联合淬化回收钢渣余热发电系统 |
| CN114014565B (zh) * | 2021-11-16 | 2023-02-28 | 上海驰春节能科技有限公司 | 高温液态高炉渣协同磷石膏/脱硫石膏制水泥联产硫酸的装置及方法 |
-
2022
- 2022-09-22 CN CN202211156217.2A patent/CN115231316B/zh active Active
- 2022-11-29 WO PCT/CN2022/135074 patent/WO2024060402A1/zh unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009227495A (ja) * | 2008-03-20 | 2009-10-08 | Jfe Steel Corp | スラグ処理方法 |
| DE102008056076A1 (de) * | 2008-11-05 | 2010-05-12 | Coperion Gmbh | Fördersystem |
| CN109207659A (zh) * | 2018-10-06 | 2019-01-15 | 天津大学 | 一种熔融渣的粒化装置及热回收方法 |
| CN213504855U (zh) * | 2020-10-22 | 2021-06-22 | 济南海鹰机电制造有限公司 | 一种智控型防堵排堵气力输送系统 |
| CN112899420A (zh) * | 2021-01-18 | 2021-06-04 | 山东大学 | 一种转炉渣联用淬化消碱磁化热回收装置和方法 |
| CN114890691A (zh) * | 2022-05-09 | 2022-08-12 | 山东大学 | 一种转炉渣烟气淬化固碳热回收装置和方法 |
| CN115231316A (zh) * | 2022-09-22 | 2022-10-25 | 山东大学 | 基于废气携废渣激冷钢渣的流态化粉料供送系统及方法 |
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