WO2017113537A1 - 一种硅矿石熔融发电系统 - Google Patents

一种硅矿石熔融发电系统 Download PDF

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Publication number
WO2017113537A1
WO2017113537A1 PCT/CN2016/078915 CN2016078915W WO2017113537A1 WO 2017113537 A1 WO2017113537 A1 WO 2017113537A1 CN 2016078915 W CN2016078915 W CN 2016078915W WO 2017113537 A1 WO2017113537 A1 WO 2017113537A1
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WO
WIPO (PCT)
Prior art keywords
powder
subsystem
power generation
flue gas
silicon ore
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PCT/CN2016/078915
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English (en)
French (fr)
Inventor
刘效洲
裴虎
张孝春
高富强
刘文星
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广东工业大学
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Application filed by 广东工业大学 filed Critical 广东工业大学
Priority to AU2016380382A priority Critical patent/AU2016380382B2/en
Publication of WO2017113537A1 publication Critical patent/WO2017113537A1/zh

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Classifications

    • 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
    • F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/14—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam, e.g. inert gases
    • 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
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/08—Screw feeders; Screw dischargers
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/18—Charging particulate material using a fluid carrier
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/18—Charging particulate material using a fluid carrier
    • F27D2003/185—Conveying particles in a conduct using a fluid
    • 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
    • F27D2017/006—Systems for reclaiming waste heat using a boiler
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2003/00—Type of treatment of the charge
    • F27M2003/13—Smelting
    • 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
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
    • 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

Definitions

  • the invention belongs to the technical field of metallurgy, and particularly relates to an energy-saving and environmentally-friendly silicon ore melting power generation system.
  • Fused silica is an amorphous (glassy state) of silicon oxide (quartz, silica). It is a typical glass whose atomic structure is long-range and disordered. It provides its high operating temperature and thermal expansion coefficient through cross-linking of three-dimensional structures. Mainly used in precision casting, glass ceramics, refractory materials and electronic appliances.
  • the object of the present invention is to provide a silicon ore fusion power generation system which is energy-saving and environmentally friendly, and which can reduce the production cost, in view of the deficiencies of the prior art.
  • a silicon ore melting power generation system including a furnace body, a flue gas pipeline, a high temperature waste heat utilization subsystem, a waste heat power generation subsystem, a temperature and heat utilization subsystem, a silicon ore coal mixing and crushing subsystem and a powder conveying subsystem, wherein the flue gas duct is connected to a bottom side wall of the furnace body to discharge flue gas generated in the furnace to the bacon; the smoke of the flue gas duct The flow direction of the gas is sequentially arranged with a high temperature waste heat utilization subsystem, a waste heat power generation subsystem, and a temperature and heat utilization subsystem.
  • the silicon ore coal mixed crushing subsystem is disposed on one side of the furnace body, and the silicon ore and coal are proportionally ground into a mixed powder; the lower end of the silicon ore coal mixing and crushing subsystem and the powder The upper ends of the transport subsystem are connected;
  • the powder conveying subsystem is disposed at a lower end of the silicon ore coal mixing and crushing subsystem and is connected to a bottom side wall of the furnace body through a pipeline, and another outlet end of the powder conveying subsystem passes through the pipeline and the The upper ends of the furnace body are connected.
  • the furnace body comprises a cylindrical furnace; a nozzle is arranged on a top wall of the furnace body; a tangential tuyere is arranged at a right upper wall of the furnace body; a bottom left end wall of the furnace body a smoke suction port is arranged on the upper
  • the connecting pipe is connected to the powder conveying subsystem; the flue gas pipe is connected to the bottom right end wall of the furnace body to discharge the flue gas generated in the furnace to the chimney.
  • the high temperature waste heat utilization subsystem is disposed at a high temperature heat exchanger at an upstream position of the flue gas duct and further includes the combustion air blower, the high temperature heat exchanger having a flue gas flow path and a fluid flow path,
  • the high temperature heat exchanger is composed of a ceramic heat exchange tube, and ambient air from the combustion air blower enters a fluid flow path of the high temperature heat exchanger through a pipeline and is preheated to 20 degrees Celsius in the high temperature heat exchanger to After 1200 degrees Celsius, it is transported to the tangential tuyere of the upper right wall of the furnace body through the pipeline, and then enters the cylindrical furnace to assist combustion; the flue gas temperature drops from 1850 degrees Celsius to 950 degrees Celsius and enters the intermediate temperature heat exchanger.
  • the waste heat power generation subsystem includes a medium temperature heat exchanger disposed at a midstream position of the flue gas duct, the medium temperature heat exchanger is located in the flue gas duct and has a smoke flow path and a water flow path, and
  • the waste heat power generation subsystem further includes a turbine power generation device, a screw power generation device, and a water pump, wherein the outlet of the fluid flow path of the intermediate temperature heat exchanger, the turbine power generation device, the screw power generation device, the water pump, the The inlets of the fluid flow paths of the intermediate temperature heat exchanger are sequentially connected by a pipeline to form a water circulation loop.
  • the ⁇ ⁇ warm waste utilization subsystem includes a ⁇ ⁇ warm heat exchanger disposed at a downstream position of the flue gas duct, the drying fan, the electric precipitator, and the first induced draft fan, Then entering the electric precipitator under the suction of the first induced draft fan; the electric precipitator is connected to the first bacon through the first induced draft fan and the pipeline.
  • the silicon ore coal mixed crushing conveying system comprises a silicon ore screw feeder, a coal screw feeder, a crusher, a crusher, a powder bin, a powder machine, a bag filter, a second induced draft fan and a second smoke.
  • the silicon ore and coal are fed into the crusher inlet through the pipeline by the silicon ore screw feeder and the coal screw feeder; the silicon ore and coal are broken into particles in the crusher and then broken
  • the outlet of the machine is fed into the inlet of the mill through a pipe; the air inlet of the mill is connected with the drying fan, the inlet is connected with the crusher, and the outlet is connected with the powder bin, a tuyere is connected to the bag filter; a mixture of silicon ore and coal is ground into a powder in the mill and then enters the powder bin through the mill outlet; the upper portion of the powder silo Connected to the pulverizer discharge port, the lower portion is connected to the lower powder feeder inlet port; the bag filter is connected to the second bacon through the second bow I fan and the pipe.
  • the powder conveying subsystem further includes an air mixer, a heat extraction fan, and a wind powder mixer; the air inlet of the right side of the air mixer is connected with the suction port of the furnace flue gas, and the air inlet of the lower side is connected with the atmosphere.
  • the side outlet is connected to the inlet of the heat extraction fan; the outlet of the heat extraction fan is connected to the air inlet of the air powder mixer; the inlet of the air powder mixer is connected to the discharge port of the powder mixer
  • the outlet of the air powder mixer is connected to the nozzle through a pipe; the cold air and the high temperature flue gas from the furnace are mixed in the heat extraction fan to form a hot fluid, and then enter the mixer; the hot fluid and the powder After mixing uniformly in the mixer, the nozzle is introduced through a pipe.
  • the nozzle outlet is provided with a cone for dispersing the powder, and the particle size distribution of the powder sprayed by the nozzle is: 0.1 mm powder particles account for 80%, and 0.2 mm powder particles account for 20%.
  • the ratio of silicon ore to coal is 1: 2 ⁇ 3; silicon ore and coal are broken into 5 ⁇ 6mm particles in the crusher; silicon ore and coal are ground in the mill 0.1mm ⁇ 0.2min powder.
  • the advantages and beneficial technical effects of the present invention are as follows:
  • the heat generated by the mixed combustion of silicon ore and coal in proportion causes the silicon ore to be melted, which can effectively save energy;
  • Combustion power generation and material drying can recover more than 80% of waste heat, which can effectively reduce cost and save energy.
  • High-temperature flue gas and cold air mixture are used to transport materials and burn, oxygen content, nitrogen oxides
  • the total amount of pollution discharge is greatly reduced.
  • FIG. 1 is a system frame diagram of a silicon ore fusion power generation system according to the present invention.
  • a silicon ore melting power generation system as shown in FIG. 1, includes a furnace body, a flue gas pipeline (flue), a high temperature waste heat utilization subsystem, a waste heat power generation subsystem, a temperature and heat utilization subsystem, and a silicon ore. Coal mixing and crushing subsystem and powder conveying subsystem.
  • the flue gas duct is connected to the bottom right side wall of the furnace body to discharge the flue gas generated in the furnace of the furnace body to the chimney; the flue gas flow direction of the flue gas duct is sequentially arranged with high temperature waste heat utilization Subsystem, waste heat power generation subsystem, and temperature utilization subsystem.
  • the silicon ore coal mixing and crushing subsystem is arranged on the left side of the furnace body, and the silicon ore and coal are proportionally ground into a mixed powder; the lower end of the silicon ore coal mixing and crushing subsystem and the powder conveying agent The upper end of the system is connected.
  • the powder conveying subsystem is disposed at a lower end of the silicon ore coal mixing and crushing subsystem and is connected to a bottom left side wall of the furnace body through a pipe, and another outlet of the powder conveying subsystem The end is connected to the nozzle at the upper end of the furnace body through a pipe.
  • the furnace body comprises a cylindrical furnace; a nozzle is arranged on a top wall of the furnace body; a tangential tuyere is arranged at a right upper wall of the furnace body; a flue gas suction port is arranged on the side end wall, and is connected to the powder conveying subsystem through a connecting pipe; the flue gas pipe is connected to the bottom right end wall of the furnace body to discharge the flue gas generated in the furnace To bacon.
  • the mixture of silicon ore and coal is burned in the furnace of the furnace body, and the silicon ore is melted and then flows into the molten pool for use.
  • the high-temperature waste heat utilization subsystem is composed of the high-temperature heat exchanger and a combustion-supporting fan disposed at an upstream position of the flue gas duct, and the high-temperature heat exchanger is installed on the flue gas duct.
  • the combustion air blower is connected to one end of the high temperature heat exchanger, and the other end of the high temperature heat exchanger is connected with the tangential air inlet of the furnace body to provide combustion air with a temperature of up to 1200 degrees Celsius for the furnace body.
  • the high temperature heat exchanger has a flue gas flow path and a fluid flow path, and the high temperature heat exchanger may be composed of a ceramic heat exchange tube, and ambient air from the combustion air blower enters the high temperature heat exchanger through a pipeline
  • the flow path is preheated to 1200 degrees Celsius in the high temperature heat exchanger by 20 degrees Celsius, and then sent to the tangential tuyere of the upper right wall of the furnace body through a pipeline, and then enters the cylindrical furnace to assist combustion;
  • the temperature drops from 1850 degrees Celsius to 950 degrees Celsius and enters the medium temperature heat exchanger.
  • the waste heat power generation subsystem includes a medium temperature heat exchanger disposed at a midstream position of the flue gas duct, and the medium temperature heat exchanger is located in the flue gas duct and has a smoke flow path and a water flow path, and
  • the waste heat power generation subsystem further includes a turbine generator, a screw generator, and a water pump, wherein an outlet of the fluid flow path of the intermediate temperature heat exchanger, the turbine generator, the screw generator, the water pump, the The inlets of the fluid flow paths of the intermediate-temperature heat exchanger are sequentially connected by a pipeline to form a water circulation loop for secondary power generation.
  • the temperature from the medium-temperature heat exchanger is 450 degrees Celsius, and the high-temperature hot water with a pressure of 3.9Mpa is used for the first generation of electricity through the turbine generator; the temperature is lowered to 140 degrees Celsius, the pressure is 0.5Mpa, and the screw generator is used for secondary power generation.
  • the water temperature is 70 degrees Celsius, and the pressure is O.lMpa and then enters the medium temperature heat exchanger for heat exchange.
  • the ⁇ ⁇ warm waste utilization subsystem includes a ⁇ ⁇ warm heat exchanger disposed at a downstream position of the flue gas duct, a drying fan, an electric precipitator, and the first induced draft fan, and then in the The first air blower is sucked into the electric precipitator; the electric precipitator is connected to the first chimney through the first draft fan and the pipeline.
  • the silicon ore coal mixed crushing and conveying system comprises a silicon ore screw feeder, a coal screw feeder, a crusher, a pulverizer, a powder silo, a powdering machine, a bag filter, a second draft fan and a second bacon; the silicon ore and coal are sent by the silicon ore screw feeder and the coal screw feeder through a pipeline Into the crusher inlet; the silicon ore and coal are broken into particles in the crusher, and then sent to the mill inlet through the pipe from the crusher outlet; the air inlet and the drying fan of the mill Connecting, the inlet is connected with the crusher, the discharge port is connected with the powder silo, and the air outlet is connected with the bag filter; the mixture of silicon ore and coal is ground in the mill After the powder is made into the powder silo through the mill discharge port; the upper portion of the powder silo is connected with the discharge port of the grinder, and the lower portion is connected with the feed port of the lower powder machine; The device is connected to the second bacon through a second bow
  • the powder conveying subsystem further includes an air mixer, a heat extraction fan, and a wind powder mixer; the air inlet of the right side of the air mixer is connected with the suction port of the furnace flue gas, and the air inlet of the lower side is connected with the atmosphere.
  • connection of the left side is connected to the inlet of the heat extraction fan; the outlet of the heat extraction fan is connected to the air inlet of the air powder mixer; the inlet of the air powder mixer and the powder machine a discharge port is connected; the outlet of the air powder mixer is connected to the nozzle through a pipe; the cold air and the high temperature flue gas from the furnace are mixed in the heat extraction fan to form a hot fluid, and then enter the mixer; The fluid and powder are uniformly mixed in the mixer and then piped into the nozzle.
  • the nozzle outlet is provided with a cone for dispersing the powder, and the particle size distribution of the powder sprayed by the nozzle is: 0.1 mm powder particles account for 80%, and 0.2 mm powder particles account for 20%.
  • the ratio of silicon ore to coal is 1: 2 ⁇ 3; silicon ore and coal are broken into particles of 5 to 6 mm in the crusher; silicon ore and coal are ground in the mill 0.1mm ⁇ 0.2min powder.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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  • Combustion & Propulsion (AREA)
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Abstract

一种硅矿石熔融发电系统，包括炉体、烟气管道、高温余热利用子系统、余热发电子系统、低温余热利用子系统、硅矿石煤炭混合破碎子系统和粉料输送子系统；所述烟气管道的烟气流动方向依次布置有高温余热利用子系统、余热发电子系统、低温余热利用子系统。所述硅矿石煤炭混合破碎子系统布置在所述炉体一侧；所述硅矿石煤炭混合破碎子系统下端与所述粉料输送子系统上端相连接。

Description

一种硅矿石熔融发电系统
[0001] 〖技术领域】
[0002] 本发明属于冶金技术领域， 特别涉及一种节能环保的硅矿石熔融发电系统。
[0003] 〖背景技术】
[0004] 熔融石英是氧化硅 （石英， 硅石） 的非晶态 （玻璃态） 。 它是典型的玻璃， 其 原子结构长程无序。 它通过三维结构交叉链接提供其高使用温度和 ί氐热膨胀系 数。 主要用于精密铸造、 玻璃陶瓷、 耐火材料及电子电器等行业。
[0005] 现有熔融石英是将精选的硅石原料在电弧炉或电阻炉内熔融， 熔融温度为 1695 -1720。c。 在冶炼中需要消耗大量电能， 导致生产成本高， 且污染严重。
[0006] 【发明内容】
[0007] 本发明的目的是针对现有技术存在的不足， 提供一种节能环保， 且可以降 ί氐 生产成本的硅矿石熔融发电系统。
[0008] 为了实现上述目的， 本发明是这样实现的： 一种硅矿石熔融发电系统， 包括炉 体、 烟气管道、 高温余热利用子系统、 余热发电子系统、 ί氐温余热利用子系统 、 硅矿石煤炭混合破碎子系统和粉料输送子系统， 所述烟气管道连接于所述炉 体的底部侧壁上以将炉膛内产生的烟气排出至烟肉； 所述烟气管道的烟气流动 方向依次布置有高温余热利用子系统、 余热发电子系统、 ί氐温余热利用子系统
[0009] 所述硅矿石煤炭混合破碎子系统布置在所述炉体一侧， 将硅矿石和煤炭按比例 磨制成混合粉料； 所述硅矿石煤炭混合破碎子系统下端与所述粉料输送子系统 上端相连接；
[0010] 所述粉料输送子系统布置在所述硅矿石煤炭混合破碎子系统下端通过管道连接 于所述炉体的底部侧壁上， 粉料输送子系统的另一出口端通过管道与所述炉体 上端相连接。
[0011] 所述炉体包括圆柱形炉膛； 所述炉体的顶端壁上布置有喷嘴； 所述炉体的右侧 上壁间隔布置有切向风口； 所述炉体的底部左侧端壁上布置有烟气吸口， 并通 过连接管道与粉料输送子系统连接相通； 所述烟气管道连接于炉体的底部右侧 端壁上以将所述炉膛内产生的烟气排出至烟囱。
[0012] 所述高温余热利用子系统设置于所述烟气管道的上游位置处的高温换热器并且 还包括所述助燃风机， 所述高温换热器具有烟气流路和流体流路， 所述高温换 热器由陶瓷换热管构成， 来自于所述助燃风机的环境空气通过管线进入所述高 温换热器的流体流路并在所述高温换热器中由 20摄氏度预热到 1200摄氏度后， 通过管线输送至所述炉体右侧上壁的切向风口， 再进入所述圆柱形炉膛助燃； 烟气温度由 1850摄氏度下降到 950摄氏度后进入中温换热器。
[0013] 所述余热发电子系统包括设置于所述烟气管道的中游位置处的中温换热器， 所 述中温换热器位于烟气管道内并具有烟气流路和水流路， 并且所述余热发电子 系统还包括涡轮发电装置、 螺杆发电装置和水泵， 其中， 所述中温换热器的流 体流路的出口、 所述涡轮发电装置、 所述螺杆发电装置、 所述水泵、 所述中温 换热器的流体流路的入口通过管线依次连接形成水循环回路。
[0014] 所述 ί氐温余热利用子系统包括设置于所述烟气管道的下游位置处的 ί氐温换热 器， 所述干燥风机、 所述电气除尘器和所述第一引风机， 然后在所述第一引风 机抽吸作用下进入所述电气除尘器； 所述电气除尘器通过第一引风机及管道与 第一烟肉相连接。
[0015] 所述硅矿石煤炭混合破碎输送系统包括硅矿石螺杆送料机、 煤炭螺杆送料机、 破碎机、 粉碎机、 粉料仓、 下粉机、 布袋除尘器、 第二引风机和第二烟肉； 硅 矿石和煤炭由所述硅矿石螺杆送料机、 所述煤炭螺杆送料机通过管道送入所述 破碎机入口； 硅矿石和煤炭在所述破碎机中被破碎成颗粒后由所述破碎机出口 通过管道送入所述磨机入料口； 所述磨机的入风口与干燥风机连接， 入料口与 所述破碎机相连接， 出料口与所述粉料仓相连接， 出风口与所述布袋除尘器相 连接； 硅矿石和煤炭的混合物在所述磨机中被磨制成粉料后经过所述磨机出料 口进入所述粉料仓； 所述粉料仓上部与粉碎机出料口连接， 下部与所述下粉机 入料口连接； 所述布袋除尘器通过第二弓 I风机及管道与第二烟肉相连接。
[0016] 所述粉料输送子系统还包括空气混合器、 抽热风机、 风粉混合器； 所述空气混 合器右侧入风口与炉膛烟气抽吸口连接相通， 下侧入风口与大气连接相通， 左 侧出口与所述抽热风机入口连接相通； 所述抽热风机出口与所述风粉混合器进 风口连接相通； 所述风粉混合器的进料口与所述下粉机出料口连接； 所述风粉 混合器的出口经管道与所述喷嘴连接相通； 冷空气和来自炉膛的高温烟气在所 述抽热风机中混合形成热流体后进入所述混合器； 热流体和粉料在所述混合器 中均匀混合后再经管道进入所述喷嘴。
[0017] 所述喷嘴出口处设置有用于分散粉料的锥体， 所述喷嘴喷出的粉料颗粒度分布 为： 0.1mm粉料颗粒占 80% , 0.2mm粉料颗粒占 20%。
[0018] 其中， 硅矿石和煤炭比例为 1: 2〜3； 硅矿石和煤炭在所述破碎机中被破碎成 5 〜6mm的颗粒； 硅矿石和煤炭在所述磨机中被磨制成 0.1mm〜0.2min的粉料。
[0019] 与现有技术相比， 本发明具有的优点和有益技术效果如下： 将硅矿石与煤炭按 比例进行混合燃烧产生的热量使硅矿石熔融， 可以有效的节约能源； 余热回收 后用来助燃发电和进行物料干燥， 可以回收 80%以上排放余热， 可以有效降 ί氐 成本， 节约能耗； 采用高温烟气和冷空气混合气使来输送物料并燃烧， 氧气含 量 ί氐， 氮氧化物污染排放总量大为降 ί氐： 由于利用烟气余热从而节约了大量的 燃料， 主要污染物排放总量也大为降 ί氐。
[0020] 【附图说明】
[0021] 图 1为本发明一种硅矿石熔融发电系统的系统框架图。
[0022] 〖具体实施方式】
[0023] 以下结合附图和具体实施例对本发明进行详细的描述说明。
[0024] 一种硅矿石熔融发电系统， 如图 1所示， 包括炉体、 烟气管道 （烟道） 、 高温 余热利用子系统、 余热发电子系统、 ί氐温余热利用子系统、 硅矿石煤炭混合破 碎子系统和粉料输送子系统等。 所述烟气管道连接于所述炉体的底部右边侧壁 上以将所述炉体的炉膛内产生的烟气排出至烟囱； 所述烟气管道的烟气流动方 向依次布置有高温余热利用子系统、 余热发电子系统、 ί氐温余热利用子系统。 所述硅矿石煤炭混合破碎子系统布置在所述炉体左边一侧， 将硅矿石和煤炭按 比例磨制成混合粉料； 所述硅矿石煤炭混合破碎子系统下端与所述粉料输送子 系统上端相连接。 所述粉料输送子系统布置在所述硅矿石煤炭混合破碎子系统 下端通过管道连接于所述炉体的底部左边侧壁上， 粉料输送子系统的另一出口 端通过管道与所述炉体上端的喷嘴相连接。
[0025] 其中， 所述炉体包括圆柱形炉膛； 所述炉体的顶端壁上布置有喷嘴； 所述炉体 的右侧上壁间隔布置有切向风口； 在所述炉体的底部左侧端壁上布置有烟气吸 口， 并通过连接管道与粉料输送子系统连接相通； 所述烟气管道连接于炉体的 底部右侧端壁上以将所述炉膛内产生的烟气排出至烟肉。 硅矿石与煤混合物在 炉体的炉膛内燃烧， 将硅矿石熔融后流入熔池中备用。
[0026] 所述高温余热利用子系统由设置于所述烟气管道的上游位置处的所述高温换热 器和助燃风机组成， 所述高温换热器安装在所述烟气管道上， 所述助燃风机与 所述高温换热器一端连接， 所述高温换热器的另一端与炉体的切向进风口连接 , 为炉体提供温度可高达 1200摄氏度的助燃空气。 所述高温换热器具有烟气流 路和流体流路， 所述高温换热器可以由陶瓷换热管构成， 来自于所述助燃风机 的环境空气通过管线进入所述高温换热器的流体流路并在所述高温换热器中由 2 0摄氏度预热到 1200摄氏度后， 通过管线输送至所述炉体右侧上壁的切向风口， 再进入所述圆柱形炉膛助燃； 烟气温度由 1850摄氏度下降到 950摄氏度后进入中 温换热器。
[0027] 所述余热发电子系统包括设置于所述烟气管道的中游位置处的中温换热器， 所 述中温换热器位于烟气管道内并具有烟气流路和水流路， 并且所述余热发电子 系统还包括涡轮发电机、 螺杆发电机和水泵， 其中， 所述中温换热器的流体流 路的出口、 所述涡轮发电机、 所述螺杆发电机、 所述水泵、 所述中温换热器的 流体流路的入口通过管线依次连接形成水循环回路， 进行二级发电。 从中温换 热器出来的温度在 450摄氏度， 压力在 3.9Mpa的高温热水通过涡轮发电机进行第 一次发电； 温度降温到 140摄氏度， 压力为 0.5Mpa进入螺杆发电机进行二次发电 , 出来的水温度为 70摄氏度， 压力为 O.lMpa后进入中温换热器进行换热。
[0028] 所述 ί氐温余热利用子系统包括设置于所述烟气管道的下游位置处的 ί氐温换热 器， 干燥风机、 电气除尘器和所述第一引风机， 然后在所述第一引风机抽吸作 用下进入所述电气除尘器； 所述电气除尘器通过第一引风机及管道与第一烟囱 相连接。
[0029] 所述硅矿石煤炭混合破碎输送系统包括硅矿石螺杆送料机、 煤炭螺杆送料机、 破碎机、 粉碎机、 粉料仓、 下粉机、 布袋除尘器、 第二引风机和第二烟肉； 硅 矿石和煤炭由所述硅矿石螺杆送料机、 所述煤炭螺杆送料机通过管道送入所述 破碎机入口； 硅矿石和煤炭在所述破碎机中被破碎成颗粒后由所述破碎机出口 通过管道送入所述磨机入料口； 所述磨机的入风口与干燥风机连接， 入料口与 所述破碎机相连接， 出料口与所述粉料仓相连接， 出风口与所述布袋除尘器相 连接； 硅矿石和煤炭的混合物在所述磨机中被磨制成粉料后经过所述磨机出料 口进入所述粉料仓； 所述粉料仓上部与粉碎机出料口连接， 下部与所述下粉机 入料口连接； 所述布袋除尘器通过第二弓 I风机及管道与第二烟肉相连接。
[0030] 所述粉料输送子系统还包括空气混合器、 抽热风机、 风粉混合器； 所述空气混 合器右侧入风口与炉膛烟气抽吸口连接相通， 下侧入风口与大气连接相通， 左 侧出口与所述抽热风机入口连接相通； 所述抽热风机出口与所述风粉混合器进 风口连接相通； 所述风粉混合器的进料口与所述下粉机出料口连接； 所述风粉 混合器的出口经管道与所述喷嘴连接相通； 冷空气和来自炉膛的高温烟气在所 述抽热风机中混合形成热流体后进入所述混合器； 热流体和粉料在所述混合器 中均匀混合后再经管道进入所述喷嘴。
[0031] 所述喷嘴出口处设置有用于分散粉料的锥体， 所述喷嘴喷出的粉料颗粒度分布 为： 0.1mm粉料颗粒占 80% , 0.2mm粉料颗粒占 20%。
[0032] 其中， 硅矿石和煤炭比例为 1: 2〜3； 硅矿石和煤炭在所述破碎机中被破碎成 5 〜6mm的颗粒； 硅矿石和煤炭在所述磨机中被磨制成 0.1mm〜0.2min的粉料。
[0033] 以上详细描述了本发明的较佳具体实施例， 应当理解， 本领域的普通技术无需 创造性劳动就可以根据本发明的构思做出诸多修改和变化。 因此， 凡本技术领 域中技术人员依本发明构思在现有技术基础上通过逻辑分析、 推理或者根据有 限的实验可以得到的技术方案， 均应该在由本权利要求书所确定的保护范围之 中。 技术问题
问题的解决方案
发明的有益效果

Claims

权利要求书
[权利要求 1] 一种硅矿石熔融发电系统， 包括： 炉体、 烟气管道、 高温余热利用子 系统、 余热发电子系统、 低温余热利用子系统、 硅矿石煤炭混合破碎 子系统、 粉料输送子系统， 其特征在于： 所述烟气管道连接于所述炉 体的底部右侧端壁上以将炉膛内产生的烟气排出至烟肉； 所述烟气管 道的烟气流动方向依次布置有高温余热利用子系统、 余热发电子系统 、 低温余热利用子系统； 所述硅矿石煤炭混合破碎子系统布置在所述 炉体左侧， 将硅矿石和煤炭按比例磨制成混合粉料； 所述硅矿石煤炭 混合破碎子系统下端与所述粉料输送子系统上端相连接； 所述粉料输 送子系统布置在所述硅矿石煤炭混合破碎子系统下端通过管道连接于 所述炉体的底部左侧端壁上， 其另一出口端通过管道与所述炉体上端 相连接。
[权利要求 2] 如权利要求 1所述的硅矿石熔融发电系统， 其特征在于， 所述炉体包 括圆柱形炉膛； 所述炉体的顶端壁上布置有喷嘴； 所述炉体的右侧上 壁间隔布置有切向风口； 所述炉体的底部左侧端壁上布置有烟气吸口
， 并通过连接管道与粉料输送子系统连接相通； 所述烟气管道连接于 炉体的底部右侧端壁上以将所述炉膛内产生的烟气排出至烟囱。
[权利要求 3] 如权利要求 1所述的硅矿石熔融发电系统， 其特征在于， 所述高温余 热利用子系统设置于所述烟气管道的上游位置处的高温换热器并且还 包括助燃风机， 所述高温换热器具有烟气流路和流体流路， 所述高温 换热器由陶瓷换热管构成， 来自于所述助燃风机的环境空气通过管线 进入所述高温换热器的流体流路并在所述高温换热器中由 20摄氏度预 热到 1200摄氏度后， 通过管线输送至所述炉体右侧上壁的切向风口， 再进入所述圆柱形炉膛助燃； 烟气温度由 1850摄氏度下降到 950摄氏 度后进入中温换热器。
[权利要求 4] 如权利要求 1所述的硅矿石熔融发电系统， 其特征在于， 所述余热发 电子系统包括设置于所述烟气管道的中游位置处的中温换热器， 所述 中温换热器位于烟气管道内并具有烟气流路和水流路， 并且所述余热 发电子系统还包括涡轮发电装置、 螺杆发电装置和水泵， 其中， 所述 中温换热器的流体流路的出口、 所述涡轮发电装置、 所述螺杆发电装 置、 所述水泵、 所述中温换热器的流体流路的入口通过管线依次连接 形成水循环回路。
[权利要求 5] 如权利要求 1所述的硅矿石熔融发电系统， 其特征在于， 所述低温余 热利用子系统包括设置于所述烟气管道的下游位置处的低温换热器， 所述干燥风机、 所述电气除尘器和所述第一引风机， 然后在所述第一 引风机抽吸作用下进入所述电气除尘器； 所述电气除尘器通过第一引 风机及管道与第一烟肉相连接。
[权利要求 6] 如权利要求 1所述的硅矿石熔融发电系统， 其特征在于， 所述硅矿石 煤炭混合破碎输送系统包括硅矿石螺杆送料机、 煤炭螺杆送料机、 破 碎机、 粉碎机、 粉料仓、 下粉机、 布袋除尘器、 第二引风机和第二烟 囱； 硅矿石和煤炭由所述硅矿石螺杆送料机、 所述煤炭螺杆送料机通 过管道送入所述破碎机入口； 硅矿石和煤炭在所述破碎机中被破碎成 颗粒后由所述破碎机出口通过管道送入所述磨机入料口； 所述磨机的 入风口与干燥风机连接， 入料口与所述破碎机相连接， 出料口与所述 粉料仓相连接， 出风口与所述布袋除尘器相连接； 硅矿石和煤炭的混 合物在所述磨机中被磨制成粉料后经过所述磨机出料口进入所述粉料 仓； 所述粉料仓上部与粉碎机出料口连接， 下部与所述下粉机入料口 连接； 所述布袋除尘器通过第二引风机及管道与第二烟肉相连接。
[权利要求 7] 如权利要求 1所述的硅矿石熔融发电系统， 其特征在于， 所述粉料输 送子系统包括空气混合器、 抽热风机、 风粉混合器； 所述空气混合器 右侧入风口与炉膛烟气抽吸口连接相通， 下侧入风口与大气连接相通 ， 左侧出口与所述抽热风机入口连接相通； 所述抽热风机出口与所述 风粉混合器进风口连接相通； 所述风粉混合器的进料口与所述下粉机 出料口连接； 所述风粉混合器的出口经管道与所述喷嘴连接相通； 冷 空气和来自炉膛的高温烟气在所述抽热风机中混合形成热流体后进入 所述混合器； 热流体和粉料在所述混合器中均匀混合后再经管道进入 所述喷嘴。
[权利要求 8] 按照权利要求 2所述的硅矿石熔融发电系统， 其特征在于： 所述喷嘴 出口处设置有用于分散粉料的锥体， 所述喷嘴喷出的粉料颗粒度分布 为： 0.1mm粉料颗粒占 80%， 0.2mm粉料颗粒占 20%。
[权利要求 9] 按照权利要求 1或 6所述的硅矿石熔融发电系统， 其特征在于： 硅矿石 和煤炭比例为 1 : 2〜3； 硅矿石和煤炭在所述破碎机中被破碎成 5〜6 mm的颗粒； 硅矿石和煤炭在所述磨机中被磨制成 0.1mm〜0.2mm的 粉料。
PCT/CN2016/078915 2015-12-31 2016-04-09 一种硅矿石熔融发电系统 WO2017113537A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005331172A (ja) * 2004-05-20 2005-12-02 Oshima Shipbuilding Co Ltd エネルギーおよび有価金属回収システム
CN101392992A (zh) * 2008-10-27 2009-03-25 中信重工机械股份有限公司 硅冶炼电炉余热发电工艺流程及设备配置
WO2009126052A1 (en) * 2008-04-11 2009-10-15 European Silicon Sp . Z O.O. Electric arc-resistance furnace in particular for manufacturing of concentrated silicon alloys using the method of silicon dioxide and iron oxides reduction with carbon
CN101936666A (zh) * 2010-09-17 2011-01-05 集美大学 硅冶炼炉余能回收工艺及其装置
CN202770234U (zh) * 2012-08-23 2013-03-06 北京佰能电气技术有限公司 炼硅电炉余热发电系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101013217B1 (ko) * 2008-07-04 2011-02-10 주식회사 에콜라이트 석탄회 재활용 장치 및 방법
US9598742B2 (en) * 2009-09-25 2017-03-21 Arvos Inc. Exhaust processing and heat recovery system
DE102010022773B4 (de) * 2010-06-04 2012-10-04 Outotec Oyj Verfahren und Anlage zur Erzeugung von Roheisen
EP2487439B1 (en) * 2011-02-14 2019-05-08 General Electric Technology GmbH Method and system for milling a fuel for an oxy-fuel combustion burner
CN204058570U (zh) * 2014-07-02 2014-12-31 尹小林 一种提钒石煤脱硫焙烧及余热发电的装备系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005331172A (ja) * 2004-05-20 2005-12-02 Oshima Shipbuilding Co Ltd エネルギーおよび有価金属回収システム
WO2009126052A1 (en) * 2008-04-11 2009-10-15 European Silicon Sp . Z O.O. Electric arc-resistance furnace in particular for manufacturing of concentrated silicon alloys using the method of silicon dioxide and iron oxides reduction with carbon
CN101392992A (zh) * 2008-10-27 2009-03-25 中信重工机械股份有限公司 硅冶炼电炉余热发电工艺流程及设备配置
CN101936666A (zh) * 2010-09-17 2011-01-05 集美大学 硅冶炼炉余能回收工艺及其装置
CN202770234U (zh) * 2012-08-23 2013-03-06 北京佰能电气技术有限公司 炼硅电炉余热发电系统

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