WO2013000175A1 - 钢铁冶炼废渣高温余热发电方法及装置 - Google Patents

钢铁冶炼废渣高温余热发电方法及装置 Download PDF

Info

Publication number
WO2013000175A1
WO2013000175A1 PCT/CN2011/076777 CN2011076777W WO2013000175A1 WO 2013000175 A1 WO2013000175 A1 WO 2013000175A1 CN 2011076777 W CN2011076777 W CN 2011076777W WO 2013000175 A1 WO2013000175 A1 WO 2013000175A1
Authority
WO
WIPO (PCT)
Prior art keywords
steam
baffle
steel smelting
waste
boiler
Prior art date
Application number
PCT/CN2011/076777
Other languages
English (en)
French (fr)
Inventor
李树生
Original Assignee
Li Shusheng
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 Li Shusheng filed Critical Li Shusheng
Publication of WO2013000175A1 publication Critical patent/WO2013000175A1/zh

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/06—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being molten; Use of molten metal, e.g. zinc, as heat transfer medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
    • F01K3/02—Use of accumulators and specific engine types; Control thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004—Systems for reclaiming waste heat
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies

Definitions

  • the invention relates to a high-temperature waste heat power generation method and device for iron and steel smelting waste, which is mainly used for recycling heat energy stored in high-temperature waste generated in iron and steel smelting process.
  • the waste slag generated by the iron and steel smelting is transported to the waste recovery tank through the waste slag conveying device, and the waste slag is sprayed with water to reduce the temperature of the waste slag during the transportation process, and the waste slag enters the waste slag recovery tank for natural cooling or
  • the method of spraying water on the surface reduces the temperature to normal temperature and transports it to other places for building materials or for other purposes.
  • the temperature of the iron and steel smelting waste discharged from the smelting furnace is about 1600 °C. It stores high heat energy, and it is cooled by natural cooling or water spray, so that all the heat energy is lost to the atmosphere, resulting in A serious waste of energy.
  • the present invention provides a high-temperature waste heat power generation method and apparatus for iron and steel smelting waste, which can efficiently recover thermal energy in the waste residue for power generation.
  • the technical solution adopted by the invention is: a high-temperature waste heat power generation method for iron and steel smelting waste slag, which uses the heat energy stored in the remaining slag of steel smelting, sends the waste slag as a heat generating substance to the boiler, and heats the water/steam to generate steam of suitable pressure.
  • the steam generated by the boiler is sent to the steam turbine for power generation.
  • the steam generated by the boiler is sent to the steam turbine, it is sent to the steady pressure storage tank for adjustment, making it a pressure stable and continuous output steam.
  • Iron and steel smelting waste high temperature waste heat power generation device which comprises steam boiler and steam turbine
  • the boiler is provided with a smelting furnace waste slag input device, and the steam output pipe of the steam boiler is connected to a steam turbine, and the steam turbine is connected to the generator.
  • a steam regulator adjustment device is generally disposed between the steam boiler and the steam turbine, and the steam regulator adjustment device includes a tank body, and the tank body may be provided with a horizontal baffle device that can float up and down, and the baffle device
  • the tank body is movably connected to the tank body, and the tank body may be provided with an inlet pipe and an exhaust pipe, wherein the inlet pipe and the exhaust pipe are located below the baffle device, and the inlet pipe connection device
  • the steam outlet of the steam boiler is connected to the steam turbine, and the top of the tank body is preferably provided with an exhaust pipe, a through hole or a top of the tank body is open.
  • the baffle device may be a single layer structure or a multi-layer structure, and the baffle device of the single-layer structure is provided with a baffle, and the baffle device of the multi-layer structure is provided with 2 layers, 3
  • the layer or the four-layer baffle may be fixedly connected by a connecting rod or a connecting bracket, and the baffle is movablely sealed with the inner wall of the can body.
  • a seal may be provided on the outer edge of the baffle to form a seal with the inner wall of the can body.
  • the steam regulator device may be provided with a baffle lifting mechanism, and the baffle lifting mechanism may include a wire rope hoist, a wire rope connecting the hoist and the baffle device, and a plurality of rollers for supporting and guiding the wire rope.
  • the hoist is provided with a motor, and the roller is mounted on the roller bracket.
  • the inlet pipe is provided with a pressure sensor for collecting the steam pressure in the intake pipe, and the pressure of the baffle lifting mechanism is controlled by the pressure to maintain the pressure balance in the pipe.
  • a blower is preferably provided below the grate in the steam boiler, the air outlet of the blower is directed to the position of the steel smelting waste slag conveyed on the grate, and the waste slag outlet of the steam boiler is connected to the waste recovery tank.
  • the invention has the beneficial effects that the heat energy stored in the high-temperature waste slag generated in the steel smelting process can be effectively recovered for power generation by the method and the device of the invention, and the waste of energy can be avoided, and the converted electric energy can be transported to various industries or The use of civil sites, especially since iron and steel enterprises are large consumers of electricity, the consumption of electric energy is very large. Through this method of converting heat into steam and then converting it into electricity, the electricity produced can be directly used in the enterprise. In the middle, the in-situ use of waste heat has been realized, which solves the problem that steel enterprises have a large amount of waste heat and waste steam and cannot be effectively utilized, and realizes energy reuse while also having certain economic benefits.
  • the baffle device moves upward under the action of the steam pressure, so that the space for accommodating the steam below is increased, and the air is accommodated above. The space is reduced.
  • the baffle device moves downward under its own action, so that the space for accommodating the steam below is reduced, and the space for accommodating the air above is increased.
  • the amount of steam in the tank automatically adjusts the space for accommodating the steam, and under the action of the gravity of the baffle device itself, the steam pressure in the tank body is always maintained within a reasonable range to form a stable steam source, thereby being due to the smelting furnace
  • the intermittent discharge of waste slag causes the steam boiler to intermittently generate pressure-stable steam into a stable pressure of stable discharge steam, which provides a stable power for subsequent power generation.
  • the baffle lifting mechanism Since the baffle lifting mechanism is arranged, when a large amount of steam suddenly enters the tank of the steam pressure regulating device from the inlet pipe, the baffle device is actively lifted according to the steam flow rate, The space below the baffle device is sufficient to accommodate the incoming steam under the condition that the pressure in the tank is stabilized, thereby avoiding insufficient lifting speed of the baffle device due to the inertia action of the baffle device, and insufficient space under the baffle device, thereby enabling The phenomenon of increased pressure inside the tank occurs; due to the setting of the blower below the grate in the steam boiler, the energy transfer tendency of the waste slag is directed toward the direction of the water delivery pipe in the steam boiler, effectively shortening the energy transfer time and improving the work efficiency. At the same time, the waste residue after heat transfer can be made into a honeycomb shape, which is convenient for later use for other purposes. Therefore, the boiler is basically the same as the existing boiler heat transfer mode and the steam heating mode, and is advantageous for popularization and utilization.
  • Figure 1 is a schematic structural view of the present invention
  • FIG. 2 is a schematic structural view of a steam voltage regulator adjusting device without a baffle lifting mechanism according to the present invention
  • Fig. 3 is a schematic view showing the structure of a steam voltage regulator adjusting device provided with a baffle lifting mechanism of the present invention.
  • the invention provides a high-temperature waste heat power generation method for iron and steel smelting waste slag.
  • the specific method is to use the heat energy stored in the remaining slag of steel smelting to heat the water to generate steam, and then use the generated steam to generate electricity, so that a stable power source can be obtained for the power generation process.
  • the steam needs to be pressure-regulated before power generation, so that it becomes steam with stable pressure and continuous discharge output.
  • the method of the invention can effectively recover the heat energy stored in the high-temperature waste slag generated in the iron and steel smelting process for power generation, avoid energy waste, and the converted electric energy can be transported to The use of a variety of industrial or civilian sites, to achieve energy reuse, but also has certain economic benefits.
  • the apparatus used in the present method includes a smelting furnace 1 and a steam boiler 2, and the waste slag outlet of the smelting furnace is connected to a fuel inlet of the steam boiler through a waste slag conveying device 3, the waste slag conveying device Transferring the waste generated by the smelting furnace to a grate in the steam boiler for heating water in a water delivery pipe in the steam boiler to generate steam for power generation, and the waste transfer device may be A transfer device suitable for high-temperature waste transfer under the prior art.
  • the steam outlet of the steam boiler is connected to the steam turbine 4 through a pipe, and the steam turbine is connected to the generator 5, and the fuel outlet of the steam boiler can be connected to the waste recovery tank 7 for recovering the waste residue after heat transfer in the steam boiler.
  • a steam pressure regulation device 6 is preferably disposed between the steam boiler and the steam turbine, and the steam pressure regulation device includes a tank body 8, and the tank body may be provided with a baffle device that floats up and down, the baffle device is preferably movably connected to the can body.
  • the tank body has a circular cross section, and the baffle device is also circular, and may also be according to actual needs.
  • the tank body and the baffle of other shapes may be used, and the tank body may be provided with an inlet pipe 9 and an exhaust pipe 10, and the inlet pipe and the exhaust pipe are located below the baffle device, and the inlet
  • the steam pipe is connected to the steam outlet of the steam boiler, and the steam exhaust pipe is connected to the steam turbine, and the tank body may further be provided with a steam exhaust pipe connecting other steam equipment to stabilize the steam.
  • the top of the tank body is preferably provided with an exhaust pipe, a through hole or a top of the tank body. If necessary, a condensate drain pipe may be arranged at the bottom of the tank body to discharge condensed water which may be generated in the tank body. .
  • a check valve 11 may be respectively disposed on the inlet pipe and the exhaust pipe to ensure a steam list Flow to avoid backflow.
  • the can body may include a main body portion of the can body and an upper cover of the can body, and the main body portion of the can body is connected to the upper cover of the can body by a detachable connection manner, for example, at the connection ends of the two bodies Corresponding flanges, and the two butt flanges are fastened together by bolts. After the upper cover of the tank is removed, the internal device can be easily disassembled and repaired.
  • the baffle device may be a single-layer structure or a multi-layer structure, wherein the baffle device of the single-layer structure is provided with a baffle 12, and the baffle device of the multi-layer structure may be provided with 2 Layer, 3, 4 or more layers of baffles, which can be fixedly connected by a connecting rod 13 or a connecting bracket.
  • One of the preferred embodiments is to use two upper and lower baffles, and a connecting rod or bracket is provided between the two baffles to form a fixed whole.
  • the two-layer structure has multiple layers. The stability of the plate structure is relatively simple.
  • the baffle is generally sealed from the inner wall of the can body, the seal being a movable seal that remains sealed during movement of the baffle up and down to avoid or minimize steam spillage.
  • a sealing member 14 forming a seal with the inner wall of the can body may be disposed on the outer edge of the baffle, or may be directly sealed between the outer edge of the baffle and the inner wall of the can body, and may be The prior art selects various sealing structures and sealing materials suitable for high temperature steam.
  • a guiding structure and/or a stability control structure for controlling a movement mode and a movement locus of the baffle may be provided between the baffle and an inner wall of the can body, the stabilization control structure for preventing the The baffle tilts and shakes as it moves up and down.
  • the steam stabilizing device is arranged to allow steam to enter the interior thereof from the inlet pipe At the time, the steam enters the lower space of the tank body, and the baffle device moves upward under the action of the steam pressure, so that the space for accommodating the steam below is increased, and the space for accommodating the air is reduced to accommodate the increasing steam.
  • the baffle device moves downward under its own action, so that the space for accommodating the steam below is reduced, and the space for accommodating the air above is increased, in this way, according to the inside of the tank
  • the steam quantity automatically adjusts the space for accommodating the steam, and under the action of the gravity of the baffle device itself, the steam pressure in the tank body is always maintained within a reasonable range (because the upper space of the tank body is in communication with the atmosphere, the air pressure therein is The air pressure in the outer space is the same, and the vapor pressure in the lower space of the tank is affected by the baffle device, which is in a positive pressure state, and the pressure therein is kept substantially stable, so as to form a stable steam source, which will result from
  • the batch discharge of waste slag in the smelting furnace causes the steam boiler to intermittently generate pressure-insensitive steam into Sustainable and stable pressure steam emissions, provide stable power for the subsequent generation.
  • the steam regulator device may be provided with a baffle lifting mechanism
  • the baffle lifting mechanism may include a wire rope hoist 15, a wire rope 16 connecting the hoist and the baffle device, and a support wire and A plurality of rollers 17 for guiding the wire rope
  • the hoisting machine is provided with a motor, and the roller is mounted on the roller bracket 18.
  • the motor of the hoisting machine By activating the motor of the hoisting machine, the wire rope can be wound around the hoisting roller of the hoisting machine, thereby lifting the shutter device.
  • the baffle lifting mechanism is arranged to actively lift the baffle device according to the steam flow when a large amount of steam suddenly enters the tank of the steam stabilizing adjusting device from the inlet pipe, so that the baffle device is lifted
  • the space below is sufficient to accommodate the incoming steam under conditions in which the pressure in the tank is stabilized, thereby avoiding the inertia of the baffle device.
  • the lifting speed is insufficient, and the space below is insufficient, which in turn causes an increase in the pressure inside the tank.
  • the inlet pipe is provided with a pressure sensor for collecting the steam pressure in the inlet pipe, and the pressure of the baffle lifting mechanism is controlled by the pressure to maintain the pressure balance in the tank.
  • a blower is arranged below the grate in the steam boiler, and the air outlet of the blower is preferably directed to a position where the fuel is placed on the grate, so that during the operation of the device, the energy transfer tendency of the waste is always toward the steam.
  • the direction of the water pipeline in the boiler so as to shorten the energy transfer time and improve work efficiency.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

一种钢铁冶炼废渣高温余热发电方法及装置，发电方法利用钢铁冶炼剩余废渣的热能，将废渣作为产热物质送入蒸汽锅炉（2），给水/汽加热产生适宜压力的蒸汽，再将蒸汽锅炉（2）产生的蒸汽送入汽轮机（4）进行发电。发电装置包括蒸汽锅炉（2）和汽轮机（4），蒸汽锅炉（2）设有冶炼炉废渣传送装置（3），蒸汽锅炉（2）的排汽管（10）连接汽轮机（4），汽轮机（4）连接发电机（5），蒸汽锅炉（2）和汽轮机（4）之间设有蒸汽稳压调节装置（6），蒸汽稳压调节装置（6）包括罐体（8），罐体（8）内设有可上下浮动的横向挡板装置。发电装置可有效地回收高温废渣中的热能，避免能量浪费。

Description

说 明 书
钢铁冶炼废渣高温余热发电方法及装置 技术领域
本发明涉及一种钢铁冶炼废渣高温余热发电方法及装置，主要用 于钢铁冶炼过程中产生的高温废渣所储存的热能的回收利用。
背景技术
现有技术下，钢铁冶炼所产生的废渣多釆用通过废渣传送装置运 送到废渣回收池内， 并且在运送过程中向废渣喷水以降低废渣的温 度， 废渣进入废渣回收池内釆用自然冷却或向其表面喷水的方法，使 其温度降低至常温， 再运输至他处用于制作建筑材料或用于他用。
据测量， 从冶炼炉排出的钢铁冶炼废渣的温度大约在 1600 °C左 右， 储存有很高的热能， 釆用自然冷却或喷水的方式对其降温， 使其 热能全部散失到了大气中， 造成了能量的严重浪费。
发明内容
为克服现有技术的上述缺陷 ,本发明提供了一种钢铁冶炼废渣高 温余热发电方法及装置， 可有效地回收废渣中的热能用于发电。
本发明釆用的技术方案： 一种钢铁冶炼废渣高温余热发电方法， 其利用钢铁冶炼剩余的废渣所储存的热能，将废渣作为产热物质送入 锅炉， 给水 /汽加热产生适宜压力的蒸汽， 再将锅炉产生的蒸汽送入 汽轮机进行发电。
通常， 应在将所述锅炉产生的蒸汽送入汽轮机之前， 进行送入稳 压储汽罐中进行调节， 使其成为压力稳定并可实现持续输出的蒸汽。
一种钢铁冶炼废渣高温余热发电装置， 其包括蒸汽锅炉和汽轮 机， 所述锅炉配套设有冶炼炉废渣输入装置， 所述蒸汽锅炉的蒸汽输 出管道连接汽轮机， 所述汽轮机连接发电机。
所述蒸汽锅炉和汽轮机之间通常应设有蒸汽稳压调节装置，所述 蒸汽稳压调节装置包括罐体，所述罐体内可以设有可上下浮动的横向 挡板装置， 所述挡板装置优选同所述罐体活动连接， 所述罐体上可以 设有进汽管和排汽管， 所述进汽管和排汽管位于所述挡板装置的下 方， 所述进汽管连接所述蒸汽锅炉的蒸汽出口， 所述排汽管连接所述 汽轮机，所述罐体的顶部优选设有排气管、通孔或罐体顶部是敞开的。
所述挡板装置可以釆用单层结构， 也可以釆用多层结构， 所述单 层结构的挡板装置设有一层挡板， 所述多层结构的挡板装置设有 2 层、 3层或 4层挡板， 所述各层挡板可以釆用连杆或连接支架固定连 接， 所述挡板同所述罐体的内壁之间活动密封。
所述挡板的外缘上可以设置有与所述罐体的内壁之间形成密封 的密封件。
所述蒸汽稳压调节装置可以设有挡板提升机构，所述挡板提升机 构可以包括钢丝绳卷扬机、连接所述卷扬机和所述挡板装置的钢丝绳 以及用于支撑和引导钢丝绳的若干滚轮， 所述卷扬机设有电机， 所述 滚轮安装在滚轮支架上。
所述进汽管上优选设有压力传感器，用于釆集所述进气管内的蒸 汽压力， 通过该压力控制所述挡板提升机构动作， 以保持管内压力平 衡。 所述蒸汽锅炉内的炉排的下方优选设有鼓风机，所述鼓风机的出 风口朝向所述炉排上输送的钢铁冶炼废渣的位置，所述蒸汽锅炉的废 渣出口连接废渣回收池。
本发明的有益效果：通过本发明的方法和装置可以有效地回收钢 铁冶炼过程中产生的高温废渣中所储存的热能用于发电，避免了能量 的浪费， 转化的电能可输送到多种工业或民用场所使用， 特别是由于 钢铁企业是用电大户， 电能的消耗量很大， 通过这种又热转换成汽、 再由汽转换为电的方式， 可以将生产出来的电直接用在本企业中， 实 现了废热的就地利用， 解决了钢铁企业存在大量废热、废汽而无法有 效利用的问题， 实现了能源再利用的同时还具有一定的经济效益。
由于所述蒸汽稳压调节装置的设置，使蒸汽从所述进汽管进入其 内部时，挡板装置在蒸汽压力的作用下向上移动，使其下方容纳蒸汽 的空间增大， 上方容纳空气的空间减小， 当从排汽管排放蒸汽时， 挡 板装置在自身的作用下向下移动，使其下方容纳蒸汽的空间减小， 上 方容纳空气的空间增大， 通过这种方式， 可以根据罐体内的蒸汽量自 动调整容纳蒸汽的空间， 并且在挡板装置自身重力的作用下， 使罐体 内的蒸汽压力始终维持在一个合理范围内， 以便形成稳定的蒸汽源， 由此将由于冶炼炉间歇式排放废渣致使蒸汽锅炉随之间歇式产生的 压力不稳定的蒸汽变为具有稳定压力的可持续排放的蒸汽，为后续的 发电提供了稳定的动力。
由于挡板提升机构的设置可以在突然间有大量蒸汽从进汽管进 入蒸汽稳压调节装置的罐体时， 根据蒸汽流量主动将挡板装置提起， 使挡板装置下方在保持罐内压力稳定的条件下有足以容纳进入的蒸 汽的空间，由此避免由于挡板装置的惯性作用导致挡板装置提升速度 不够， 挡板装置下方空间不足， 进而使罐体内压力增大的现象发生； 由于蒸汽锅炉内炉排下方的鼓风机的设置，使废渣的能量传递趋 势朝向蒸汽锅炉内输水管道的方向， 有效地缩短了能量传递的时间， 提高了工作效率， 同时还可使热传递后的废渣呈蜂窝状，便于日后粉 碎用作他用，因此这种锅炉同现有锅炉热传递方式以及蒸汽加热方式 上基本相同， 有利于推广利用。
附图说明
图 1为本发明的结构示意图；
图 2 为本发明的不设有挡板提升机构的蒸汽稳压调节装置的结 构示意图；
图 3 为本发明的设有挡板提升机构的蒸汽稳压调节装置的结构 示意图。
具体实施方式
本发明提供了一种钢铁冶炼废渣高温余热发电方法，具体方法是 利用钢铁冶炼剩余的废渣所储存的热能给水加热产生蒸汽，再利用产 生的蒸汽进行发电， 为使发电过程可以获得稳定的动力源， 所述蒸汽 在进行发电前需进行压力调节，使其成为压力稳定并可实现持续排放 输出的蒸汽。
通过本发明方法可以有效地回收钢铁冶炼过程中产生的高温废 渣中所储存的热能用于发电， 避免能量的浪费， 转化的电能可输送到 多种工业或民用场所使用，实现了能源再利用的同时还具有一定的经 济效益。
参见图 1和图 2 , 运用本方法所釆用的装置包括冶炼炉 1和蒸汽 锅炉 2 , 所述冶炼炉的废渣出口通过废渣传送装置 3连接所述蒸汽锅 炉的燃料进口，所述废渣传送装置将所述冶炼炉产生的废渣传送至所 述蒸汽锅炉内的炉排上，用于给所述蒸汽锅炉内的输水管道内的水加 热， 产生蒸汽用以发电， 所述废渣传送装置可以釆用现有技术下适宜 高温废渣传送的传送装置。所述蒸汽锅炉的蒸汽出口通过管道连接汽 轮机 4 , 所述汽轮机连接发电机 5 , 所述蒸汽锅炉的燃料出口可以连 接废渣回收池 7 , 用以回收所述蒸汽锅炉内热传递后的废渣。
为了能给所述汽轮机提供稳定的动力源，所述蒸汽锅炉和汽轮机 之间优选设有蒸汽稳压调节装置 6 , 所述蒸汽稳压调节装置包括罐体 8 , 所述罐体内可以设有可上下浮动的横向挡板装置， 所述挡板装置 优选同所述罐体活动连接， 通常， 所述罐体的横截面呈圓形， 所述挡 板装置也是圓形，根据实际需要，也可以釆用其它形状的罐体和挡板， 所述罐体上可以设有进汽管 9和排汽管 10 , 所述进汽管和排汽管位 于所述挡板装置的下方， 所述进汽管连接所述蒸汽锅炉的蒸汽出口， 所述排汽管连接所述汽轮机，所述罐体还可以设有连接其它用汽设备 的排汽管， 以便稳压蒸汽它用。 所述罐体的顶部优选设有排气管、 通 孔或罐体顶部是敞开的，必要时可以在所述罐体的底部设置凝结水排 放管， 以便排放所述罐体内可能产生的凝结水。
所述进汽管和排汽管上可以分别设有逆止阀 11 , 以保证蒸汽单 向流动， 避免回流。
所述罐体可以包括罐体的主体部分和罐体的上盖，所述罐体的主 体部分同所述罐体的上盖通过可拆卸的连接方式连接，例如在两者的 连接端分别设置对应的法兰，并通过螺栓将两个对接的法兰紧固在一 起， 拆下罐体的上盖后， 可以方便地进行内部装置的拆卸和维修。
所述挡板装置可以釆用单层结构， 也可以釆用多层结构， 其中所 述单层结构的挡板装置设有一层挡板 12 , 所述多层结构的挡板装置 可以设有 2层、 3层、 4层或更多层数的挡板， 所述各层挡板可以釆 用连杆 1 3或连接支架固定连接。 其中一种优选的实施方式是釆用上 下两层挡板， 两层挡板之间设有连接用的连杆或支架， 由此形成一个 固定的整体， 这种两层结构既具有多层挡板结构的稳定性， 又相对简 单。
所述挡板同所述罐体的内壁之间一般应进行密封，该密封为活动 密封， 在所述挡板上下移动过程中保持密封状态， 以避免或尽可能减 小蒸汽的溢出。可以在所述挡板的外缘上设置与所述罐体的内壁之间 形成密封的密封件 14 , 也可以釆用挡板外缘同所述罐体的内壁之间 直接硬密封，可以依据现有技术选用各种适宜于高温蒸汽的密封结构 和密封材料。
必要时，可以在所述挡板和罐体的内壁之间设置用于控制所述挡 板的移动方式和移动轨迹的导向结构和 /或稳定控制结构， 所述稳定 控制结构用于防止所述挡板在上下移动过程中倾斜和晃动。
所述蒸汽稳压装置的设置， 使当蒸汽从所述进汽管进入其内部 时， 蒸汽进入所述罐体的下部空间， 所述挡板装置在蒸汽压力的作用 下向上移动，使其下方容纳蒸汽的空间增大， 上方容纳空气的空间减 小， 以容纳不断增多的蒸汽， 当从排汽管排放蒸汽时， 挡板装置在自 身的作用下向下移动， 使其下方容纳蒸汽的空间减小， 上方容纳空气 的空间增大， 通过这种方式， 可以根据罐体内的蒸汽量自动调整容纳 蒸汽的空间， 并且在挡板装置自身重力的作用下，使罐体内的蒸汽压 力始终维持在一个合理范围内（由于罐体上部空间同大气相连通， 故 其中的空气压力与外部空间的空气压力相同，而罐体下部空间内的蒸 汽压力受挡板装置的影响， 呈一定的正压状态， 并且其中的压力保持 基本稳定）， 以便形成稳定的蒸汽源， 由此将由于冶炼炉间歇式排放 废渣致使蒸汽锅炉随之间歇式产生的压力不稳定的蒸汽变为具有稳 定压力的可持续排放的蒸汽， 为后续的发电提供了稳定的动力。
参见图 3 , 所述蒸汽稳压调节装置可以设有挡板提升机构， 所述 挡板提升机构可以包括一个钢丝绳卷扬机 15 , 连接所述卷扬机和所 述挡板装置的钢丝绳 16以及用于支撑和引导钢丝绳的若干滚轮 17 , 所述卷扬机设有电机， 所述滚轮安装在滚轮支架 18上。 通过启动卷 扬机的电机， 就可以将钢丝绳缠绕在所述卷扬机的卷扬辊上， 由此将 所述挡板装置提起。
所述挡板提升机构的设置可以在突然间有大量蒸汽从进汽管进 入所述蒸汽稳压调节装置的罐体时，根据蒸汽流量主动将所述挡板装 置提起，使所述挡板装置下方在保持罐内压力稳定的条件下有足以容 纳进入的蒸汽的空间，由此避免由于所述挡板装置的惯性作用导致其 提升速度不够， 下方空间不足， 进而使所述罐体内压力增大的现象发 生。
所述进汽管上优选设有压力传感器，用于釆集所述进汽管内的蒸 汽压力， 通过该压力控制所述挡板提升机构动作， 以保持罐内压力平 衡。
所述蒸汽锅炉内的炉排的下方优选设有鼓风机，所述鼓风机的出 风口优选朝向所述炉排上放置燃料的位置，使装置在工作过程中， 废 渣的能量传递趋势始终朝向所述蒸汽锅炉内输水管道的方向，以此缩 短能量传递的时间， 提高工作效率。

Claims

权 利 要 求 书
1、 一种钢铁冶炼废渣高温余热发电方法， 其特征在于利用钢 铁冶炼剩余的废渣所储存的热能， 将废渣作为产热物质送入锅炉， 给 水 /汽加热产生适宜压力的蒸汽， 再将锅炉产生的蒸汽送入汽轮机进 行发电。
2、 如权利要求 1所述的钢铁冶炼废渣高温余热发电方法， 其 特征在于在将所述锅炉产生的蒸汽送入汽轮机之前，进行送入稳压储 汽罐中进行调节， 使其成为压力稳定并可实现持续输出的蒸汽。
3、 一种钢铁冶炼废渣高温余热发电装置， 其特征在于包括蒸汽 锅炉和汽轮机， 所述锅炉配套设有冶炼炉废渣输入装置， 所述蒸汽锅 炉的蒸汽输出管道连接汽轮机， 所述汽轮机连接发电机。
4、 如权利要求 3所述的钢铁冶炼废渣高温余热发电装置， 其 特征在于所述蒸汽锅炉和汽轮机之间设有蒸汽稳压调节装置，所述蒸 汽稳压调节装置包括罐体 ,所述罐体内设有可上下浮动的横向挡板装 置， 所述挡板装置同所述罐体活动连接， 所述罐体上设有进汽管和排 汽管， 所述进汽管和排汽管位于所述挡板装置的下方， 所述进汽管连 接所述蒸汽锅炉的蒸汽出口， 所述排汽管连接所述汽轮机， 所述罐体 的顶部设有排气管、 通孔或罐体顶部是敞开的。
5、 如权利要求 4所述的钢铁冶炼废渣高温余热发电装置， 其 特征在于所述挡板装置釆用单层结构或多层结构，所述单层结构的挡 板装置设有一层挡板， 所述多层结构的挡板装置设有 2层、 3层或 4 层挡板， 所述各层挡板釆用连杆或连接支架固定连接， 所述挡板同所 述罐体的内壁之间活动密封.
6、 如权利要求 5所述的钢铁冶炼废渣高温余热发电装置， 其 特征在于所述挡板的外缘上设置有与所述罐体的内壁之间形成密封 的密封件。
.
7、 如权利要求 6所迷的钢铁冶炼废渣高温余热发电装置， 其 特征在于所述蒸汽稳压调节装置设有挡板提升机构，所述挡板提升机 括钢丝绳卷扬机、连接所述卷扬机和所述挡板装置的钢丝绳以及 i# 支撑和引导钢丝绳的若干滚轮，所述卷扬机设有电机， 所述滚轮 安装在滚轮支架上。
8、 如权利要求 7所述的钢铁冶炼废渣高温余热发电装置， 其 特^在于所述进汽管上设有压力传感器，用于采集所迷进气管内的蒸 汽压力， 通过该压力控制所述挡板提升机构动作， 以保持管内压力平 街。
9、 如权利要求 8所述的钢铁冶炼废渣高温余热发电装置， 其 特 ¾£在于所述进汽管和排汽管上分别设有逆止阀。
「10、 如权利要求 3、 4、 5、 6、 7、 8或 9所述的钢铁冶炼废淦高 温余热发电装置，其特征在于所迷蒸汽锅炉内的炉排的下方设有鼓风 机； 所迷鼓风机的出风口朝向所述炉排上输送的钢铁冶炼废渣的位 置， 所述蒸汽锅炉的废渣出口连接废渣回收池。
10
更正页 （细则第 91条） ISA/CN
PCT/CN2011/076777 2011-06-28 2011-07-01 钢铁冶炼废渣高温余热发电方法及装置 WO2013000175A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110175847.X 2011-06-28
CN201110175847XA CN102230747B (zh) 2011-06-28 2011-06-28 钢铁冶炼废渣高温余热发电方法及装置

Publications (1)

Publication Number Publication Date
WO2013000175A1 true WO2013000175A1 (zh) 2013-01-03

Family

ID=44843339

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/076777 WO2013000175A1 (zh) 2011-06-28 2011-07-01 钢铁冶炼废渣高温余热发电方法及装置

Country Status (2)

Country Link
CN (1) CN102230747B (zh)
WO (1) WO2013000175A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111518972A (zh) * 2020-05-07 2020-08-11 南京华电节能环保设备有限公司 一种高温熔渣及其余热的回收处理装置
CN113638780A (zh) * 2021-07-08 2021-11-12 江西联达冶金有限公司 高温钢渣余热回收装置
CN115265211A (zh) * 2022-07-15 2022-11-01 榆林学院 硅铁、镁、兰炭联合生产中余热回收耦合co2利用的方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106322352A (zh) * 2015-06-30 2017-01-11 许成荫 一种料渣热量回收燃烧装置
CN106247298B (zh) * 2016-08-05 2018-07-20 中山市恒辉自动化科技有限公司 一种金属冶炼废渣高温余热发电装置
CN108709432A (zh) * 2018-06-07 2018-10-26 嘉善卡勒机车零部件有限公司 机车零部件加工生产用的熔炼炉
CN113944522A (zh) * 2021-10-09 2022-01-18 立德动力设备(浙江)有限公司 一种用于余热利用的蒸汽、电力联合驱动系统

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54159302A (en) * 1978-06-07 1979-12-17 Mitsubishi Heavy Ind Ltd Recovering apparatus for heat from molten slag
JPH09193994A (ja) * 1996-01-19 1997-07-29 Fujitsu Ltd 加圧タンク
CN2292216Y (zh) * 1997-02-19 1998-09-23 顾志龙 锅炉煤炭、废渣兼烧装置
US6209568B1 (en) * 1998-07-17 2001-04-03 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Gas supply system including a pressure-regulating device and installation for dispensing working liquid
CN101178017A (zh) * 2007-12-04 2008-05-14 安庆林 钢铁厂余热锅炉饱和蒸汽回收再发电的方法
CN101418950A (zh) * 2008-12-10 2009-04-29 东北大学 高炉渣显热回收系统
CN202145096U (zh) * 2011-06-28 2012-02-15 李树生 钢铁冶炼废渣高温余热发电装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54159302A (en) * 1978-06-07 1979-12-17 Mitsubishi Heavy Ind Ltd Recovering apparatus for heat from molten slag
JPH09193994A (ja) * 1996-01-19 1997-07-29 Fujitsu Ltd 加圧タンク
CN2292216Y (zh) * 1997-02-19 1998-09-23 顾志龙 锅炉煤炭、废渣兼烧装置
US6209568B1 (en) * 1998-07-17 2001-04-03 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Gas supply system including a pressure-regulating device and installation for dispensing working liquid
CN101178017A (zh) * 2007-12-04 2008-05-14 安庆林 钢铁厂余热锅炉饱和蒸汽回收再发电的方法
CN101418950A (zh) * 2008-12-10 2009-04-29 东北大学 高炉渣显热回收系统
CN202145096U (zh) * 2011-06-28 2012-02-15 李树生 钢铁冶炼废渣高温余热发电装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111518972A (zh) * 2020-05-07 2020-08-11 南京华电节能环保设备有限公司 一种高温熔渣及其余热的回收处理装置
CN111518972B (zh) * 2020-05-07 2022-03-04 南京华电节能环保股份有限公司 一种高温熔渣及其余热的回收处理装置
CN113638780A (zh) * 2021-07-08 2021-11-12 江西联达冶金有限公司 高温钢渣余热回收装置
CN115265211A (zh) * 2022-07-15 2022-11-01 榆林学院 硅铁、镁、兰炭联合生产中余热回收耦合co2利用的方法
CN115265211B (zh) * 2022-07-15 2023-08-29 榆林学院 硅铁、镁、兰炭联合生产中余热回收耦合co2利用的方法

Also Published As

Publication number Publication date
CN102230747A (zh) 2011-11-02
CN102230747B (zh) 2012-07-25

Similar Documents

Publication Publication Date Title
WO2013000175A1 (zh) 钢铁冶炼废渣高温余热发电方法及装置
CN104154728B (zh) 一种链板输送煤球导热油干燥机
JP2011025878A (ja) 小型船舶の燃料油加熱供給システム
CN206235002U (zh) 一种真空玻璃外壳常压电极式锅炉
CN201313871Y (zh) 多晶硅铸锭用高纯石英坩埚专用烧结炉
CN209588081U (zh) 一种热管式锅炉烟道余热回收系统
CN207335460U (zh) 一种熔炼炉余热回收利用装置
CN202555801U (zh) 铅极板铸板机电磁加热集中供铅装置
CN115597106B (zh) 一种供热系统
CN209371361U (zh) 一种电蓄热体锅炉
CN107191904A (zh) 熔盐蓄热及热能梯级利用直供系统及方法
CN202145096U (zh) 钢铁冶炼废渣高温余热发电装置
CN106352561A (zh) 太阳能光热电站熔盐传蓄热介质化盐方法及设备
CN110906536A (zh) 一种原水加热系统余热利用设备及利用方法
CN202561726U (zh) 一种新型生物质颗粒自动可控燃烧灶具
CN210154311U (zh) 一种模块化梭式窑
CN102275912A (zh) 鞍式活化炉蒸汽自给装置
CN208898507U (zh) 用于溴素生产的焚硫炉系统
CN209801772U (zh) 一种生物制药燃烧甲醇用锅炉系统
CN206669695U (zh) 一种带有液位传感器的蒸汽锅炉
CN202561724U (zh) 一种新型蒸汽加热炉
CN112361362A (zh) 一种便于清洁内壁水垢的锅炉
CN212805591U (zh) 一种生物质蒸汽锅炉
CN210332708U (zh) 一种碳化硅炉管材料的炉管固定式粉末活性炭再生炉
CN220017387U (zh) 一种卧立混合上胶机组voc废气处理系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11868686

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 19/05/2014)

122 Ep: pct application non-entry in european phase

Ref document number: 11868686

Country of ref document: EP

Kind code of ref document: A1