CN109055636A - Blast furnace BPRT energy conserving system - Google Patents
Blast furnace BPRT energy conserving system Download PDFInfo
- Publication number
- CN109055636A CN109055636A CN201811086034.1A CN201811086034A CN109055636A CN 109055636 A CN109055636 A CN 109055636A CN 201811086034 A CN201811086034 A CN 201811086034A CN 109055636 A CN109055636 A CN 109055636A
- Authority
- CN
- China
- Prior art keywords
- blast furnace
- gas
- energy
- axial flow
- turbine
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000011084 recovery Methods 0.000 claims abstract description 21
- 230000008676 import Effects 0.000 claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 230000008859 change Effects 0.000 claims description 10
- 239000012716 precipitator Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000003034 coal gas Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/06—Making pig-iron in the blast furnace using top gas in the blast furnace process
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The present invention relates to ironmaking equipment technical fields, more particularly to blast furnace BPRT energy conserving system, it includes blast furnace, air blower, motor, gas energy recovery gas turbine machine, the blast furnace includes furnace body, blast furnace gas discharge outlet and blast furnace air inlet, the gas energy turbine includes gas energy conversion chamber and the turbine shaft across gas energy conversion chamber, gas energy converts chamber and is equipped with high pressure gas import and low-pressure gas outlet, high pressure gas import is connected with blast furnace gas discharge outlet by pipeline, low-pressure gas outlet is connected with low-pressure gas pipe network, the wind centralizing cavity that the air blower is equipped with axial flow compressor and is connected with the air outlet slit of axial flow compressor, the air outlet slit of wind centralizing cavity is connected with blast furnace air inlet, the turbine shaft is connect with one end of axial flow compressor shaft, the other end of axial flow compressor shaft with Motor rotary shaft connection.Apparatus structure provided by the invention is simple and convenient to operate, is at low cost and high-efficient.
Description
Technical field
The present invention relates to ironmaking equipment technical field more particularly to blast furnace BPRT energy conserving systems.
Background technique
Iron and steel enterprise requires to use blast furnace, and blast furnace to smelting iron and steel during can generate a large amount of blast furnace gas,
When recycling to blast furnace gas, pressure drops to 10KPa by 200KPa, and temperature drops to 60 DEG C by 90 DEG C, the general pressure of the prior art
Power is reduced to be depressurized by pressure regulation valve group, and temperature leans on natural cooling, and energy loss during which all slatterns.
Summary of the invention
The blast furnace that technical problem to be solved by the invention is to provide structures to be simple and convenient to operate, at low cost and high-efficient
BPRT energy conserving system.
The present invention is to be achieved by the following technical programs:
Blast furnace BPRT energy conserving system comprising blast furnace, air blower, motor, gas energy recovery gas turbine machine, the blast furnace
Including furnace body, blast furnace gas discharge outlet and blast furnace air inlet, the gas energy turbine includes gas energy conversion chamber and wears
The turbine shaft of gas energy conversion chamber is crossed, gas energy converts chamber and is equipped with high pressure gas import and low-pressure gas outlet, high
Pressure gas inlet is connected with blast furnace gas discharge outlet by pipeline, and low-pressure gas outlet is connected with low-pressure gas pipe network, institute
Air blower is stated equipped with axial flow compressor and the wind centralizing cavity being connected with the air outlet slit of axial flow compressor, the air outlet slit of wind centralizing cavity
It is connected with blast furnace air inlet, the turbine shaft is connect with one end of axial flow compressor shaft, axial flow compressor shaft
The other end is connect with motor rotary shaft.
Further, speed change clutch is installed between turbine shaft and axial flow compressor shaft.
Further, speed-changing gear box is installed between axial flow compressor shaft and motor rotary shaft.
Further, gravity is installed between the high pressure gas import and blast furnace gas discharge outlet of gas energy recovery gas turbine machine
Deduster and bag filter.
Further, be equipped between bag filter and the high pressure gas import of gas energy recovery gas turbine machine fast cut valve and
By-passing valve, the by-passing valve are connected with low-pressure gas pipe network.
Beneficial effects of the present invention
The blast furnace BPRT energy conserving system protected of the present invention, by the way that a gas energy recovery gas turbine machine is arranged, by its with
Blast furnace gas discharge outlet is connected, and the high temperature and pressure coal gas generated in blast furnace ironmaking process enters gas energy recovery gas turbine machine
Gas energy conversion is intracavitary, kinetic energy driving turbine shaft rotation is converted heat into, to realize gas energy recovery gas turbine
The axial flow compressor shaft of machine blower together with motor rotates, and air is sent into blast furnace, blast furnace gas is not only made
The process of decrease temperature and pressure has been successfully completed, and the temperature and pressure energy in blast furnace gas has been utilized, has been mentioned for blast furnace
Relatively simple for structure for wind regime, operation is also very convenient, not only reduces the output power of motor, has saved the energy, and
It realizes that system synthesis and function optimization configure, eliminates generator and high pressure is transported to electric system, the energy of coal-gas recovering is direct
It is replenished in shafting as rotating mechanical energy, blower, avoids the secondary effect that mechanical energy turns electric energy and electric energy turns mechanical energy
Rate loss.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the present invention；
1. furnace body in figure, 2. blast furnace air inlets, 3. blast furnace gas discharge outlets, 4. gravitational precipitators, 5. bag filters, 6.
By-passing valve, 7. low-pressure gas pipe networks, 8. wind centralizing cavities, 9. fast cut valves, 10. turbine shafts, 11. gas energies convert chamber, 12. coals
Gas energy recovery turbine machine, 13. speed change clutch, 14. air blowers, 15. axial flow compressors, 16. speed-changing gear boxs, 17. is electronic
Machine.
Specific embodiment
Blast furnace BPRT energy conserving system comprising blast furnace, air blower 14, motor 17, gas energy recovery gas turbine machine 12, institute
Stating blast furnace includes furnace body 1, blast furnace gas discharge outlet 3 and blast furnace air inlet 2, and the gas energy turbine includes that gas energy turns
Change chamber 11 and the turbine shaft 10 across gas energy conversion chamber, gas energy convert chamber and be equipped with high pressure gas import and low pressure
Gas exit, high pressure gas import are connected with blast furnace gas discharge outlet by pipeline, low-pressure gas outlet and low-pressure gas pipe
Net 7 is connected, the wind centralizing cavity 8 that the air blower is equipped with axial flow compressor 15 and is connected with the air outlet slit of axial flow compressor,
The air outlet slit of wind centralizing cavity is connected with blast furnace air inlet, and the turbine shaft is connect with one end of axial flow compressor shaft,
The other end of axial flow compressor shaft is connect with motor rotary shaft.
Further, speed change clutch 13 is installed between turbine shaft and axial flow compressor shaft.
Further, speed-changing gear box 16 is installed between axial flow compressor shaft and motor rotary shaft.
Further, gravity is installed between the high pressure gas import and blast furnace gas discharge outlet of gas energy recovery gas turbine machine
Deduster 4 and bag filter 5.
Further, fast cut valve 9 is installed between bag filter and the high pressure gas import of gas energy recovery gas turbine machine
And by-passing valve 6, the by-passing valve are connected with low-pressure gas pipe network.
When operation of blast furnace, the high temperature and pressure coal gas generated in blast furnace ironmaking process enters the coal of gas energy recovery gas turbine machine
The conversion of gas energy is intracavitary, kinetic energy driving turbine shaft rotation is converted heat into, to realize gas energy recovery gas turbine machine
The axial flow compressor shaft rotation of blower, air is sent into blast furnace, air is sent into blast furnace together with motor,
So that blast furnace gas has been successfully completed the process of decrease temperature and pressure, but also the temperature and pressure energy in blast furnace gas is carried out
It utilizes, provides wind regime for blast furnace, relatively simple for structure, operation is also very convenient, not only reduces the output power of motor, saves
The about energy, and realize that system synthesis and function optimization configure, it eliminates generator and high pressure is transported to electric system, coal gas is returned
The energy of receipts replenishes in shafting directly as rotating mechanical energy, blower, and mechanical energy is avoided to turn electric energy and electric energy favourable turn
The secondary efficiency loss of tool energy.
Speed change clutch is installed between turbine shaft and axial flow compressor shaft, axis can be realized according to the condition of production
Driving element freely the converting between motor and gas energy recovery gas turbine machine of compressor is flowed, and applies speed change clutch
Online engagement enhances unit safety nargin with function is disengaged, and improves unit reliability of operation.When smooth operation of furnace, speed change from
Clutch engagement, the power transfer that turbine is recycled is to blast furnace blower；When turbine itself is faulty or blast wandering, damping down,
Gas volume hour, clutch automatically disengage Blast Furnace Gas Turbine online, guarantee that blast furnace is normally kept the safety in production.
Speed-changing gear box is installed between axial flow compressor shaft and motor rotary shaft, it can be further according to production run
The revolving speed of situation adjusting motor.
Gravitational precipitator is installed between the high pressure gas import and blast furnace gas discharge outlet of gas energy recovery gas turbine machine
And bag filter, guarantee the Blast Furnace Gas Quality for entering gas energy recovery gas turbine machine, prevents from influencing coal too much due to impurity
The operation of gas energy recovery turbine machine.
Fast cut valve and by-passing valve are installed between bag filter and the high pressure gas import of gas energy recovery gas turbine machine,
The by-passing valve is connected with low-pressure gas pipe network, according to the operating condition of blast furnace may be implemented gas energy recovery gas turbine machine with
The quick on-off of blast furnace gas, it is easy to operate and further improve the safety margin of system.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. blast furnace BPRT energy conserving system, which is characterized in that including blast furnace, air blower, motor, gas energy recovery gas turbine machine,
The blast furnace includes furnace body, blast furnace gas discharge outlet and blast furnace air inlet, and the gas energy turbine includes that gas energy turns
Change chamber and the turbine shaft across gas energy conversion chamber, gas energy convert chamber and be equipped with high pressure gas import and low-pressure gas
Outlet, high pressure gas import are connected with blast furnace gas discharge outlet by pipeline, low-pressure gas outlet and low-pressure gas pipe network phase
Connection, the wind centralizing cavity that the air blower is equipped with axial flow compressor and is connected with the air outlet slit of axial flow compressor, wind centralizing cavity
Air outlet slit is connected with blast furnace air inlet, and the turbine shaft is connect with one end of axial flow compressor shaft, the compression of axis stream
The other end of machine shaft is connect with motor rotary shaft.
2. blast furnace BPRT energy conserving system according to claim 1, which is characterized in that turbine shaft and axial flow compressor turn
Speed change clutch is installed between axis.
3. blast furnace BPRT energy conserving system according to claim 2, which is characterized in that axial flow compressor shaft and motor turn
Speed-changing gear box is installed between axis.
4. blast furnace BPRT energy conserving system according to claim 1, which is characterized in that the high pressure of gas energy recovery gas turbine machine
Gravitational precipitator and bag filter are installed between gas inlet and blast furnace gas discharge outlet.
5. blast furnace BPRT energy conserving system according to claim 4, which is characterized in that bag filter and gas energy recycle
Fast cut valve and by-passing valve are installed, the by-passing valve is connected with low-pressure gas pipe network between the high pressure gas import of turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811086034.1A CN109055636A (en) | 2018-09-18 | 2018-09-18 | Blast furnace BPRT energy conserving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811086034.1A CN109055636A (en) | 2018-09-18 | 2018-09-18 | Blast furnace BPRT energy conserving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109055636A true CN109055636A (en) | 2018-12-21 |
Family
ID=64762758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811086034.1A Pending CN109055636A (en) | 2018-09-18 | 2018-09-18 | Blast furnace BPRT energy conserving system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109055636A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109487024A (en) * | 2018-12-25 | 2019-03-19 | 云南玉溪仙福钢铁（集团）有限公司 | Blast furnace gas and main air hose lead to net system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2663685A1 (en) * | 1990-06-20 | 1991-12-27 | Zimmermann & Jansen Gmbh | PROCESS FOR RECOVERING THE ENERGY FROM GAS FROM A BLAST FURNACE, AND INSTALLATION OF A BLAST FURNACE FOR CARRYING OUT THIS PROCESS. |
| CN1614034A (en) * | 2004-08-12 | 2005-05-11 | 陕西鼓风机（集团）有限公司 | Blowing energy recovering method for blast furnace |
| CN102536345A (en) * | 2012-01-13 | 2012-07-04 | 杭州哲达科技股份有限公司 | Method for increasing running energy efficiency of BPRT (blast furnace power recovery turbine) system |
| CN205783778U (en) * | 2016-06-21 | 2016-12-07 | 江苏腾跃建材有限公司 | A kind of waste heat recovery air stove |
| CN209081915U (en) * | 2018-09-18 | 2019-07-09 | 盐城市联鑫钢铁有限公司 | Blast furnace BPRT energy conserving system |
-
2018
- 2018-09-18 CN CN201811086034.1A patent/CN109055636A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2663685A1 (en) * | 1990-06-20 | 1991-12-27 | Zimmermann & Jansen Gmbh | PROCESS FOR RECOVERING THE ENERGY FROM GAS FROM A BLAST FURNACE, AND INSTALLATION OF A BLAST FURNACE FOR CARRYING OUT THIS PROCESS. |
| CN1614034A (en) * | 2004-08-12 | 2005-05-11 | 陕西鼓风机（集团）有限公司 | Blowing energy recovering method for blast furnace |
| CN102536345A (en) * | 2012-01-13 | 2012-07-04 | 杭州哲达科技股份有限公司 | Method for increasing running energy efficiency of BPRT (blast furnace power recovery turbine) system |
| CN205783778U (en) * | 2016-06-21 | 2016-12-07 | 江苏腾跃建材有限公司 | A kind of waste heat recovery air stove |
| CN209081915U (en) * | 2018-09-18 | 2019-07-09 | 盐城市联鑫钢铁有限公司 | Blast furnace BPRT energy conserving system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109487024A (en) * | 2018-12-25 | 2019-03-19 | 云南玉溪仙福钢铁（集团）有限公司 | Blast furnace gas and main air hose lead to net system |
| CN109487024B (en) * | 2018-12-25 | 2024-02-09 | 云南玉溪仙福钢铁（集团）有限公司 | Blast furnace gas and main air pipe net system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11459896B2 (en) | High efficiency power production methods, assemblies, and systems | |
| CN107237695B (en) | Twin-shaft turbine and its inlet guide vane aperture control method | |
| JP6183994B2 (en) | Gas turbine compressor inlet pressurization with torque converter system | |
| US20100115912A1 (en) | Parallel turbine arrangement and method | |
| EP2669492B1 (en) | Gas turbine compressor inlet pressurization and flow control system | |
| CN103758578B (en) | The method of operation of gas turbine and gas turbine | |
| US9644633B2 (en) | Centrifugal motor-compressor unit | |
| EP2836693B1 (en) | Compressed-air energy-storage system | |
| CN204610202U (en) | For compressed-air actuated system | |
| US20130255271A1 (en) | Fuel Supply System | |
| US8047809B2 (en) | Modular air compression apparatus with separate platform arrangement | |
| US20150292349A1 (en) | Turboexpander and driven turbomachine system | |
| CN105986900A (en) | Power generation system having compressor creating excess air flow and turbo-expander to increase turbine exhaust gas mass flow | |
| CN209081915U (en) | Blast furnace BPRT energy conserving system | |
| TW201331463A (en) | A compressor arrangement | |
| US10247450B2 (en) | Device and method for converting thermal energy | |
| EP2613041A2 (en) | Turbine to operate at part-load | |
| CN109055636A (en) | Blast furnace BPRT energy conserving system | |
| KR20130056856A (en) | A centrifugal compressor | |
| WO2012012018A4 (en) | Combination of expansion and cooling to enhance separation | |
| JP2014509936A (en) | Method of operating jet mill equipment and jet mill equipment | |
| CN103306761A (en) | Pressure energy power generation system adopting wellhead natural gas | |
| AU2018350939B2 (en) | Compression device and method | |
| US10683800B2 (en) | Engine | |
| CA3079027A1 (en) | Compression device and method and refrigeration machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181221 |