AU2016380382B2 - Silica mineral fusion power generation system - Google Patents

Silica mineral fusion power generation system Download PDF

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Publication number
AU2016380382B2
AU2016380382B2 AU2016380382A AU2016380382A AU2016380382B2 AU 2016380382 B2 AU2016380382 B2 AU 2016380382B2 AU 2016380382 A AU2016380382 A AU 2016380382A AU 2016380382 A AU2016380382 A AU 2016380382A AU 2016380382 B2 AU2016380382 B2 AU 2016380382B2
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Australia
Prior art keywords
subsystem
flue gas
powder
coal
ore
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AU2016380382A
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AU2016380382A1 (en
Inventor
FuQiang GAO
Wenxing LIU
Xiaozhou LIU
Hu PEI
Xiaochun Zhang
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Guangdong University of Technology
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Guangdong University of Technology
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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

Abstract

A silica mineral fusion power generation system comprises a furnace, a flue gas pipeline, a high-temperature waste-heat recovery subsystem, a waste-heat power generation subsystem, a low-temperature waste-heat recovery subsystem, a subsystem for blending and crushing silica mineral and coal, and a powder material delivery subsystem. The high-temperature waste-heat recovery subsystem, the waste-heat power generation subsystem, and the low-temperature waste-heat recovery subsystem are sequentially disposed in the flow direction of flue gas in the flue gas pipeline. The subsystem for blending and crushing silica mineral and coal is disposed at one side of the furnace. The lower end of the subsystem for blending and crushing silica mineral and coal is connected to the upper end of the powder material delivery subsystem.

Description

A System of Melting Silicon Ore and Generating Power
FIELD OF INVENTION
The present invention relates to metallurgy and more particularly to a system of melting silicon ore and generating, featuring energy saving and environmental friendliness.
BACKGROUND OF INVENTION
Molten quartz is non-crystalline (glass) form of silica. It is a typical glass and its atomic structure is long ranged and disordered. Molten silica features high operation temperature and low coefficient of thermal expansion through its three dimensional cross-link structure and therefore, it is majorly used in precise casting, glass ceramic, heat resistant materials, electronics and the like.
Conventionally, molten quartz is made by melting silicon ore with high quality in an electric arc furnace or resistor furnace under a temperature of 16951720°C- A great deal of electric energy is consumed during melting process and environment pollution is also serious.
SUMMARY
One object of the invention is to overcome drawbacks of prior art and provide a system of melting silicon ore and generating power, featuring energy saving, and production cost reduction.
To realize above object, there is proposed a technical solution. A system of melting silicon ore and generating power includes a furnace body, a flue gas channel, a high temperature waste heat utilization subsystem, a waste heat power generation subsystem, a low temperature waste heat utilization subsystem, silica ore-coal mixing and grinding subsystem, and a powder delivery subsystem.
The flue gas channel is connected with the furnace body at a right bottom sidewall of the furnace body for exhausting smoke generated inside a furnace chamber of the furnace body out of the chamber and to a chimney; along a smoke flowing direction inside the flue gas channel, the high temperature waste heat exploitation subsystem, waste heat power generation subsystem, and low temperature waste heat exploitation subsystem are arranged.
The silica ore-coal mixing and grinding subsystem is located at a left side of the furnace body and is intended for grinding the silica ore and coal into mixed powder with certain ratio; a lower end of the silica ore-coal mixing and grinding subsystem is connected with an upper end of the powder delivery subsystem.
The powder delivery subsystem is located at a bottom end of the silica ore-coal mixing and grinding subsystem and is connected to a left bottom sidewall of the furnace body through a pipe; another outlet of the powder delivery subsystem is connected to a nozzle located at an upper end of the furnace body through a pipe.
The nozzle is defined at a top wall of the furnace body; a plurality of tangential ventilation openings is alternatively defined in a right top wall of the furnace body; a smoke intake opening is defined in a left bottom end wall of the furnace body, and communicates with the powder delivery subsystem via a connection conduit; and the smoke conduit is connected with the furnace body at a right bottom sidewall of the furnace body for exhausting smoke generated inside a furnace chamber of the furnace body out of the chamber and to a chimney.
The high temperature waste heat exploitation subsystem includes a high temperature heat exchanger and an air blower both of which are arranged at an upstream location of the flue gas channel; the high temperature heat exchanger includes a flue gas passage and a fluid passage; the high temperature heat exchanger is constructed of a ceramic heat exchanger tube; ambient air from the air blower enters into the fluid passage of the high temperature exchanger through a pipe and then is heated in the high temperature exchanger such that its temperature changes from 20°C to 1200°C; after that, it is delivered to the tangential air ventilation openings on the right top wall of the furnace body; next, it enters into the cylindrical chamber to facilitate combustion; and it then flows into an intermediate temperature heat exchanger after flue gas temperature drops from
1850°C to 950°C.
The waste heat power generation subsystem includes the intermediate temperature heat exchanger located at a midstream location of the flue gas channel; the intermediate temperature heat exchanger locates inside the flue gas channel and it also includes a flue gas passage and a water passage; the waste heat power generation subsystem further includes a turbo generator, a screw power generator and a water pump; and an outlet of the fluid passage of the intermediate temperature heat exchanger, turbo generator, screw power generator, water pump, and an inlet of the fluid passage of the intermediate temperature heat exchanger are connected together in sequence by a number of pipes so as to jointly form a water cycle pipeline.
The low temperature waste heat exploitation subsystem includes a low temperature heat exchanger located at a downstream location of the flue gas channel, a dry blower, an electrical scrubber, and a first induced draft fan; and under suction of the first induced draft fan, the flue gas enters into the electric scrubber which is coupled with a first chimney through the first induced draft fan and a pipe.
The powder delivery subsystem includes a screw-type silica ore feeder, a screw-type coal feeder, a crusher, a grinder, a powder hopper, a powder remover, a fabric bag filter, a second induced draft fan, and a second chimney; the mixture of silica ore and coal are driven by the screw-type silica ore feeder and screw-type coal feeder to be transferred to an inlet of the crusher through a conduit; the silica ore and coal are crushed inside the crusher into powders, which then are delivered to a feeding inlet of the grinder via a pipe; a wind inlet of the grinder is connected to the dry blower, while its feeding inlet is connected with the crusher; a feeding inlet of the dry blower is connected to the crusher, while its feeding outlet is connected to the powder hopper; a wind outlet of the grinder is connected with the fabric bag filter; the mixture of silica ore and coal is ground into powders inside the grinder and then come across a feeding outlet of the grinder to the powder hopper; an upper portion of the powder hopper is coupled with the feeding outlet of the crusher, while its lower portion is coupled with a feeding inlet of the powder remover; and the fabric bag filter is connected to the second chimney through the second induced draft fan.
The powder delivery subsystem includes an air mixer, a heat suck fan, and a wind-powder mixer; a wind inlet on the right of the air mixer is connected with a suction opening of the furnace chamber, a lower wind inlet of the air mixer is connected with ambient environment, and a left outlet of the air mixer is connected with an inlet of the heat suck fan; an outlet of the heat suck fan is connected with a wind inlet of the wind-powder mixer; a feeding inlet of the wind-powder mixer is connected with a feeding outlet of the powder remover; the outlet of the windpowder mixer is connected with the nozzle through a pipe; cold air and flue gas of high temperature from the furnace chamber are mixed inside the heat suck fan to form heat fluid, which then flows into the mixer; and the heat fluid and powder are uniformly mixed inside the mixer and then the mixture comes into the nozzle via a pipe.
A conic object is placed at an outlet of the nozzle to scatter the powders;
and the powders distributed out of the nozzle include 80% of powders with a particle size of 0.1 mm, and 20% of powders with a particle size of 0.2mm.
The ratio of silica ore and coal is 1:2-3. The silica ore and coal are crushed by the crusher into particles with a size of 5-6mm; and the silica ore and coal are ground by the grinder into powders with a size of 0.1 -0.2mm.
The invention bears the following good advantages: silica ore and coal are mixed together according to a certain ratio and then the mixture is burned to generate a large amount heat, which causes melting of the silica ore, thus effectively saving energy. The waste heat is re-collected to generate power and dry the material, thus achieving collection of 80% emission waste heat, reducing cost and saving energy consumption. The flue gas of high temperature and cold air are mixed to deliver the material and burn with less oxygen gas, thereby nitrogen oxides emission pollution being greatly reduced. Waste heat from the flue gas is utilized to save use of fuel, and total emission of pollution material is reduced as well.
DESCRIPTION OF FIGURES
Figure 1 shows a systematic block diagram of a system of melting silicon ore and generating power according to an embodiment of the invention.
EMBODIMENTS
Various embodiments of the invention are described below in greater details with reference to the drawings.
As shown in figure 1, a system of melting silicon ore and generating power includes a furnace body, a flue gas channel, a high temperature waste heat exploitation subsystem, a waste heat power generation subsystem, a low temperature waste heat utilization subsystem, silica ore-coal mixing and grinding subsystem, and a powder delivery subsystem.
The flue gas channel is connected with the furnace body at a right bottom sidewall of the furnace body for exhausting the flue gas generated inside a furnace chamber of the furnace body out of the chamber and to a chimney; along a flue gas flowing direction inside the flue gas channel, the high temperature waste heat utilization subsystem, waste heat power generation subsystem, and low temperature waste heat utilization subsystem are arranged. The silica ore-coal mixing and grinding subsystem is Located at a left side of the furnace body and is intended for grinding the silica ore and coal into mixed powder with certain ratio; a lower end of the silica ore-coal mixing and grinding subsystem is connected with an upper end of the powder delivery subsystem. The powder delivery subsystem is Located at a bottom end of the silica ore-coal mixing and grinding subsystem and is connected to a left bottom sidewall of the furnace body through a pipe.
Another outlet of the powder delivery subsystem is connected to a nozzle located at an upper end of the furnace body through a pipe.
Here, the furnace body includes a cylindrical chamber; the nozzle is placed at a top wall of the furnace body; a plurality of tangential ventilation openings is alternatively defined in a right top wall of the furnace body; a smoke intake opening is defined in a left bottom end wall of the furnace body, and is connected with the powder delivery subsystem via a connection conduit; and the smoke conduit is connected with the furnace body at a right bottom sidewall of the furnace body for exhausting smoke generated inside a furnace chamber of the furnace body out of the chamber and to a chimney. Mixture of silica ore and coal is burning inside the furnace chamber of the furnace body, and the molten silica flows into a melting pool to be used later.
The high temperature waste heat utilization subsystem includes a high temperature heat exchanger and an air blower both of which are arranged at an upstream location of the flue gas channel. The high temperature heat exchanger is mounted on the flue gas channel. The air blower is connected to one end of the high temperature heat exchanger, while the other end of the high temperature heat exchanger is connected with the tangential air ventilation openings of the furnace body for supplying combustion-supporting air at a temperature of as high as 1200 °Cto the furnace body. The high temperature heat exchanger includes a flue gas passage and a fluid passage. The high temperature heat exchanger may be constructed of a ceramic heat exchanger. Ambient air from the air blower enters into the fluid passage of the high temperature exchanger through a pipe and then is heated in the high temperature exchanger such that its temperature changes from 20°C to 1200°C. After that, it is delivered to the tangential air ventilation openings on the right top wall of the furnace body. Next, it enters into the cylindrical chamber to facilitate combustion. It then flows into an intermediate temperature heat exchanger after flue gas temperature drops from 1850°C to 950 °CThe waste heat power generation subsystem includes the intermediate temperature heat exchanger located at a midstream location of the flue gas channel. In addition, the intermediate temperature heat exchanger locates inside the flue gas channel and also includes a flue gas passage and a water passage.
The waste heat power generation subsystem further includes a turbo generator, a screw power generator and a water pump. Here, an outlet of the fluid passage of the intermediate temperature heat exchanger, turbo generator, screw power generator, water pump, and an inlet of the fluid passage of the intermediate temperature heat exchanger are connected together in sequence by a number of pipes so as to jointly form a water cycle pipeline for a secondary power generation Hot water of high temperature coming from the intermediate temperature heat exchanger has a temperature of 450C, a pressure of 3.9Mpa, and works with the turbo generator to perform a first power generation. After the temperature drops to 140°C, and pressure drops to 0.5Mpa, the hot water comes into the screw power generator to perform a secondary power generation. Water coming out of the screw power generator has a temperature of 70°C, and pressure of 0.1 Mpa, and then enters into the intermediate temperature heat exchanger to perform heat exchange.
The low temperature waste heat subsystem includes a low temperature heat exchanger located at a downstream location of the flue gas channel, a dry blower, an electrical scrubber, and a first induced draft fan. Under suction of the first induced draft fan, it enters into the electric scrubber which is coupled with a first chimney through the first induced draft fan and a pipe.
The powder delivery subsystem includes a screw-type silica ore feeder, a screw-type coal feeder, a crusher, a grinder, a powder hopper, a powder remover, a fabric bag filter, a second induced draft fan, and a second chimney.
The mixture of silica ore and coal is driven by the screw-type silica ore feeder and screw-type coal feeder to be transferred to an inlet of the crusher through a pipe. The silica ore and coal are crushed inside the crusher into powders, which then are delivered to a feeding inlet of the grinder via a pipe. A wind inlet of the grinder is connected to the dry blower, while its feeding inlet is connected with the crusher. A feeding inlet of the dry blower is connected to the crusher, while its feeding outlet is connected to the powder hopper. A wind outlet of the grinder is connected with the fabric bag filter. The mixture of silica ore and coal is ground into powders inside the grinder and then come across a feeding outlet of the grinder to the powder hopper. An upper portion of the powder hopper is coupled with the feeding outlet of the crusher, while its lower portion is coupled with a feeding inlet of the powder remover. The fabric bag filter is connected to the second chimney through the second induced draft fan.
The powder delivery subsystem further includes an air mixer, a heat suck fan, and a wind-powder mixer. A right wind inlet of the air mixer is connected with a suction opening of the furnace chamber, a lower wind inlet of the air mixer is connected with ambient environment, and a left outlet of the air mixer is connected with an inlet of the heat suck fan. An outlet of the heat suck fan is connected with a wind inlet of the wind-powder mixer. A feeding inlet of the wind-powder mixer is connected with a feeding outlet of the powder remover. The outlet of the wind5 powder mixer is connected and communicated with the nozzle through a pipe.
Cold air and flue gas of high temperature from the furnace chamber are mixed inside the heat suck fan to form heat fluid, which then flows into the mixer. The heat fluid and powder are uniformly mixed inside the mixer and then the mixture comes into the nozzle via a pipe.
A conic object is disposed at an outlet of the nozzle to disperse the powders. The powders distributed out of the nozzle include 80% of powders with a particle size of 0.1 mm, and 20% of powders with a particle size of 0.2mm.
Here, the ratio of silica ore and coal is 1:2-3. The silica ore and coal are crushed by the crusher into particles with a size of 5-6mm. The silica ore and coal are ground by the grinder into powders with a size of 0.1 -0.2mm.
Though various embodiments of the invention have been illustrated above, a person of ordinary skill in the art will understand that, variations and improvements made upon the illustrative embodiments fall within the scope of the invention, and the scope of the invention is only limited by the accompanying claims and their equivalents.

Claims (9)

  1. Claims
    The claims defining the invention are as follows:
    1. A system of melting silicon ore and generating power comprising a furnace body, a flue gas channel, a high temperature waste heat utilization subsystem, a waste
    5 heat power generation subsystem, a low temperature waste heat utilization subsystem, silica ore-coal mixing and grinding subsystem, and a powder delivery subsystem, wherein:
    the flue gas channel is connected with the furnace body at a bottom part of a sidewall of the furnace body for exhausting flue gas generated inside a furnace
    10 chamber of the furnace body out of the chamber and to a chimney; along a flue gas flowing direction inside the flue gas channel, the high temperature waste heat utilization subsystem, waste heat power generation subsystem, and low temperature waste heat utilization subsystem are arranged;
    the silica ore-coal mixing and grinding subsystem is located at a side of the
    15 furnace body opposite to the flue gas channel, and is used for grinding the silica ore and coal into mixed powder with certain ratio; a lower end of the silica ore-coal mixing and grinding subsystem is connected with an upper end of the powder delivery subsystem; and the powder delivery subsystem is located at a bottom end of the silica ore-coal
    20 mixing and grinding subsystem and is connected to a bottom part of a sidewall of the furnace body corresponding to the silica ore-coal mixing and grinding subsystem through a pipe; another outlet of the powder delivery subsystem is connected to a nozzle located at an upper end of the furnace body through a pipe.
  2. 2. The system of melting silicon ore and generating power according to claim 1,
    2016380382 22 Nov 2018 wherein the furnace body includes a cylindrical chamber; the nozzle is placed at a top wall of the furnace body; a plurality of tangential ventilation openings is provided at a top part of the sidewall of the furnace body to which the flue gas channel is connected; a flue gas intake opening connected with the powder
    5 delivery subsystem via a connection pipe is defined on the side wall of the furnace body corresponding to the silica ore-coal mixing and grinding subsystem.
  3. 3. The system of melting silicon ore and generating power according to claim 2, wherein the high temperature waste heat utilization subsystem includes a high temperature heat exchanger and an air blower both of which are arranged at an
    10 upstream location of the flue gas channel; the high temperature heat exchanger includes a flue gas passage and a fluid passage; the high temperature heat exchanger is constructed of a ceramic heat exchanger tube; ambient air from the air blower enters into the fluid passage of the high temperature exchanger through a pipe and then is heated in the high temperature exchanger from 20°C to 1200°C;
    15 after that, the ambient air is delivered to the tangential ventilation openings; next, the ambient air enters into the cylindrical chamber to facilitate combustion to produce flue gas; and the flue gas then flows into an intermediate temperature heat exchanger after the flue gas temperature drops from 1850°C to 950°C.
  4. 4. The system of melting silicon ore and generating power according to claim 1,
    20 wherein the waste heat power generation subsystem includes the intermediate temperature heat exchanger located at a midstream location of the flue gas channel; the intermediate temperature heat exchanger locates inside the flue gas channel and it also includes a flue gas passage and a water passage; the waste heat power generation subsystem further includes a turbo generator, a screw
    2016380382 22 Nov 2018 power generator and a water pump; and an outlet of the fluid passage of the intermediate temperature heat exchanger, turbo generator, screw power generator, water pump, and an inlet of the fluid passage of the intermediate temperature heat exchanger are connected together in sequence by a number of pipes so as to
  5. 5 jointly form a water cycle pipeline.
    5. The system of melting silicon ore and generating power according to claim 1, wherein the low temperature waste heat utilization subsystem includes a low temperature heat exchanger located at a downstream location of the flue gas channel, a dry blower, an electrical scrubber, and a first induced draft fan; and
    10 under suction of the first induced draft fan, it enters into the electric scrubber which is coupled with a first chimney through the first induced draft fan and a pipe.
  6. 6. The system of melting silicon ore and generating power according to claim 1, wherein the powder delivery subsystem includes a screw-type silica ore feeder, a screw-type coal feeder, a crusher, a grinder, a powder hopper, a powder remover,
    15 a fabric bag filter, a second induced draft fan, and a second chimney; the mixture of silica ore and coal are driven by the screw-type silica ore feeder and screw-type coal feeder to be transferred to an inlet of the crusher through a pipe; the silica ore and coal are crushed inside the crusher into powders, which then are delivered to a feeding inlet of the grinder via a pipe; a wind inlet of the grinder is connected to
    20 the dry blower, while its feeding inlet is connected with the crusher; a feeding inlet of the dry blower is connected to the crusher, while its feeding outlet is connected to the powder hopper; a wind outlet of the grinder is connected with the fabric bag filter; the mixture of silica ore and coal is ground into powders inside the grinder and then come across a feeding outlet of the grinder to the powder hopper; an
    2016380382 22 Nov 2018 upper portion of the powder hopper is coupled with the feeding outlet of the crusher, while its lower portion is coupled with a feeding inlet of the powder remover; and the fabric bag filter is connected to the second chimney through the second induced draft fan.
    5
  7. 7. The system of melting silicon ore and generating power according to claim 2, wherein the powder delivery subsystem includes an air mixer, a heat suck fan, and a wind-powder mixer; a first wind inlet of the air mixer is connected with the flue gas intake opening of the furnace body, a second wind inlet of the air mixer is connected with ambient environment, and an outlet of the air mixer is connected
    10 with an inlet of the heat suck fan; an outlet of the heat suck fan is connected with a wind inlet of the wind-powder mixer; a feeding inlet of the wind-powder mixer is connected with a feeding outlet of the powder remover; the outlet of the windpowder mixer is connected and communicated with the nozzle through the pipe; cold air and flue gas of high temperature from the furnace chamber are mixed
    15 inside the heat suck fan to form hot fluid, which then flows into the wind-powder mixer; and the hot fluid and powder are uniformly mixed inside the wind-powder mixer and then the mixture comes into the nozzle through the pipe.
  8. 8. The system of melting silicon ore and generating power according to claim 2, wherein a conic object is placed at an outlet of the nozzle to disperse the powders;
    20 and the powders distributed out of the nozzle include 80% of powders with a particle size of 0.1mm, and 20% of powders with a particle size of 0.2mm.
  9. 9. The system of melting silicon ore and generating power according to claims 1 or
    6, wherein the ratio of silica ore and coal is 1:2-3. The silica ore and coal are crushed by the crusher into particles with a size of 5-6mm; and the silica ore and
    2016380382 22 Nov 2018 coal are ground by the grinder into powders with a size of 0.1-0.2mm
AU2016380382A 2015-12-31 2016-04-09 Silica mineral fusion power generation system Ceased AU2016380382B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201511033850.2A CN105651068B (en) 2015-12-31 2015-12-31 A kind of silicon ore melting electricity generation system
CN201511033850.2 2015-12-31
PCT/CN2016/078915 WO2017113537A1 (en) 2015-12-31 2016-04-09 Silica mineral fusion power generation system

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AU2016380382A1 AU2016380382A1 (en) 2017-09-21
AU2016380382B2 true AU2016380382B2 (en) 2019-01-17

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AU (1) AU2016380382B2 (en)
WO (1) WO2017113537A1 (en)

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