CN109813124A - A kind of high temperature reduction calcining cooling protection residual neat recovering system and method - Google Patents
A kind of high temperature reduction calcining cooling protection residual neat recovering system and method Download PDFInfo
- Publication number
- CN109813124A CN109813124A CN201910103992.3A CN201910103992A CN109813124A CN 109813124 A CN109813124 A CN 109813124A CN 201910103992 A CN201910103992 A CN 201910103992A CN 109813124 A CN109813124 A CN 109813124A
- Authority
- CN
- China
- Prior art keywords
- level
- heat exchanger
- fluid
- bed
- nitrogen
- 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
Classifications
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of reduced calcine cooling protection residual neat recovering system and methods.The system comprises the level-ones for being sequentially communicated and being connected with Nitrogen pipe network by nitrogen booster fan, second level fluid-bed heat exchanger, level-one, second level fluid-bed heat exchanger are successively connected with primary dust removing device, secondary ash collector and three-level heat exchanger, three-level heat exchanger is connected with level-one, second level fluid-bed heat exchanger respectively by nitrogen booster fan, pipeline between three-level heat exchanger and nitrogen booster fan is equipped with oxygen analyzer, and three-level heat exchanger is connected with boiler feed；Second level fluid-bed heat exchanger discharge port is connected by material envelope valve with fluid bed preheat device feed inlet, and material envelope valve is connected with air pressurized fan outlet respectively with the air inlet of fluid bed preheat device.The present invention solves the problems, such as that high temperature reduction calcining roasted concentrate is of poor quality, roasting energy consumption is high, can be widely applied to the mineral resources that oxidation reaction easily occurs after reduction roasting for high-temperature powder iron ore, manganese ore etc..
Description
Technical field
The invention belongs to mine metallurgy industry heat recovery technology field, it is related to more than a kind of high temperature reduction calcining cooling protection
Heat recovery system；The invention further relates to a kind of methods for carrying out the recycling of high temperature reduction calcining cooling protection waste heat using the system.
Background technique
China possesses complicated difficult abundant and selects ferric oxide ore resource, mineral composition complexity, magnetic weak, disseminated grain size
Carefully, conventional high intensity magnetic separation process is difficult to obtain ideal separation index.If such ore is after reduction roasting pre-processes, then carries out
The techniques such as magnetic separation, reverse flotation tend to obtain preferable separation index.
The reduction roasting of ore refers to, ore (bloodstone, limonite, siderite and ferrimanganic ore etc.) is heated to centainly
After temperature, is acted on reducing agent, the bloodstone of weak magnetic is made to be reduced into ferromagnetic magnetic iron ore.Reducing agent can be lignite, nothing
One of bituminous coal, coke, blast furnace gas, coal gas of converter, producer gas, natural gas and heavy oil etc. are a variety of.In recent years, with
The development of magnetizing roast technology, powder is made in iron ore, application is gradually obtained using the method for fluosolids roasting.Fluidization
Magnetizing roast technology is with low energy consumption, treating capacity is big, occupied area is small, utilization rate of waste heat is high and can handle the spies such as powder ore
Point.But because residual neat recovering system technology is immature, occur in industrial application reduced calcine under high temperature (be greater than 400 DEG C) with sky
Peroxidization occurs when gas contacts and generates weak magnetic bloodstone (α-Fe2O3) the phenomenon that, seriously affect roasted concentrate quality.
In order to avoid this kind of situation, if directly by high temperature reduction calcining water cooling to low temperature, ore waste heat is difficult to recycle, roasting
Burning energy consumption can greatly increase, and influence the overall efficiency of fine ore fluosolids roasting technique.And existing high temperature reduction calcining cooling device
It is unable to reach the dual purpose for guaranteeing roasted concentrate quality and sufficiently recycling ore waste heat, reducing roasting cost.
Summary of the invention
Of poor quality, roasting that the purpose of the present invention is to solve roasted concentrates existing for existing high temperature reduction calcining cooling device
The high technical problem of energy consumption is burnt, a kind of high temperature reduction calcining cooling protection residual neat recovering system is provided.
High temperature reduction calcining cooling protection waste heat time is carried out using above system it is a further object of the present invention to provide a kind of
The method of receipts.
The purpose of the present invention is what is be achieved through the following technical solutions: a kind of high temperature reduction calcining cooling protection waste heat recycling
System, including level-one fluid-bed heat exchanger, the level-one fluid-bed heat exchanger discharge port and second level fluid-bed heat exchanger feed inlet phase
Connection, level-one fluid-bed heat exchanger pass through nitrogen booster fan and Nitrogen pipe network phase with second level fluid-bed heat exchanger bottom air inlet mouth
Connection, top outlet inlet is connected with a primary dust removing device air inlet respectively, and primary dust removing device exhaust outlet is and two-stage dust removal
Device air inlet is connected, and secondary ash collector exhaust outlet is connected with three-level heat exchanger air inlet, and three-level heat exchanger exhaust outlet passes through
Nitrogen booster fan is connected with level-one fluid-bed heat exchanger with the air inlet of second level fluid-bed heat exchanger bottom respectively, and three-level is changed
Pipeline between hot device exhaust outlet and nitrogen booster fan is equipped with oxygen analyzer, and I and II fluid-bed heat exchanger and three-level are changed
Boiler tube is equipped with inside hot device, three-level heat exchanger boiler tube import is connected with desalination water pump, and outlet and boiler feed connect
Logical, second level fluid-bed heat exchanger boiler tube import is connected to boiler feed outlet pipe, and outlet is connected with boiler drum water inlet
Logical, boiler drum gas outlet is connected with the air inlet of level-one fluid-bed heat exchanger boiler tube, and level-one fluid-bed heat exchanger goes out
Port is connected with vapor wheel unit；Nitrogen pipe network is connected with the nitrogen outlet of the equipment of making nitrogen；The second level fluidized bed heat exchanger
Device discharge port is connected by material envelope valve with fluid bed preheat device feed inlet, the air inlet of material envelope valve and fluid bed preheat device bottom
It is connected respectively with air pressurized fan outlet, the discharge port of fluid bed preheat device is connected with pulping stirred tank.
As the improvement of technical solution of the present invention, the pipeline between above-mentioned oxygen analyzer and nitrogen booster fan is equipped with electricity
It moves to idle discharge air valve, oxygen analyzer is electrically connected idle discharge air valve with electronic.When oxygen concentration is more than the setting index of oxygen analyzer,
Show that gas oxygen content is exceeded in system, empty exhaust-valve can be emptied by electronic, and fill into new nitrogen.
The method that the present invention carries out the recycling of high temperature reduction calcining cooling protection waste heat using above system, specifically includes following
Step:
(1) start nitrogen booster fan, the nitrogen that the equipment of making nitrogen is discharged is introduced into level-one fluidized bed via Nitrogen pipe network respectively and is changed
Hot device and second level fluid-bed heat exchanger, and be circulated to whole system, into oxygen analyzer, and controlled by oxygen analyzer it is electronic right
The unlatching of idle discharge air valve, the air in automatic replacing system, until oxygen analyzer shows that oxygen concentration is lower than 2%；
(2) high temperature reduction calcining is put into level-one fluid-bed heat exchanger, the high temperature reduction calcining is at level-one fluid-bed heat exchanger bottom
The fluidized state of low flow velocity is formed under the action of portion's nitrogen, it is slowly mobile to discharge port, second level is finally discharged by discharge port
Fluid-bed heat exchanger, and 200- is cooled to state same in level-one fluid-bed heat exchanger in second level fluid-bed heat exchanger
400 DEG C, low-temperature reduction calcining is obtained, which is discharged into material envelope valve 7 from discharge port and forms material envelope；
(3) start air pressurized blower, be passed through compressed air in material envelope valve and fluid bed preheat device bottom, low-temperature reduction calcining exists
Fluid bed preheat device is fed under compressed air effect, and carries out heat exchange with compressed air, the combustion air after being preheated
It is lower than 100 DEG C of ultralow temperature reduced calcine with temperature, which enters pulping stirred tank and sort work for subsequent
Industry, it is combustion-supporting that combustion air by fluid bed preheat device top outlet inlet enters roaster combustion chamber, can reduce roasting heat consumption；
(4) level-one is respectively enterd from the nitrogen that level-one fluid-bed heat exchanger and second level fluid-bed heat exchanger top outlet inlet are discharged to remove
Enter secondary ash collector after dirt device dedusting, three-level heat exchanger is entered after secondary ash collector purifies, is squeezed by desalination water pump
Demineralized water heat exchange after enter oxygen analyzer, when oxygen analyzer show oxygen concentration be lower than 2% when, then by nitrogen booster fan into
Enter level-one fluid-bed heat exchanger and second level fluid-bed heat exchanger；It is electronic when oxygen analyzer shows that oxygen concentration is equal to or higher than 2%
Idle discharge air valve opening is emptied, the equipment of making nitrogen supplements new nitrogen；Demineralized water forms steam after being heated, then successively via
Boiler feed, secondary streams change after a heat exchanger, boiler drum and level-one stream change a heat exchanger formation superheated steam and are sent into steam
Unit is taken turns to recycle.
Compared with existing high temperature reduction calcining cooling device, the beneficial effects of the present invention are:
1, the present invention high temperature reduction calcining is cooled in the nitrogen protection atmosphere of anaerobic oxidizing temperature (200~400 DEG C) with
It is contacted after lower with air, makes the ferromagnetic maghemite of its mild oxidation (γ-Fe2O3), and it is red using magnetic iron ore to be oxidized to magnetic
The heat released when iron ore reduces the heat consumption of roasting, forms secondary energy sources and recycles.
2, high temperature reduction calcining carries out under nitrogen effect in the demineralized water being passed through in fluidized state and fluid-bed heat exchanger
Heat exchange, flow velocity is low, and heat exchange is abundant.
3, waste heat nitrogen after the recovery is only needed in replenishment system after stablizing by cycling and reutilization after cooling, purification, system
The nitrogen of loss, nitrogen total flow are low.
4, low temperature ore can warm-up combustion-supporting air, raising combustion air temperature and low temperature ore UTILIZATION OF VESIDUAL HEAT IN value.
To sum up, the present invention, which has, prevents the spies such as the peroxidating of high temperature calcining, heat recovery rate are high, nitrogen circulation utilizes
Point solves the peroxidating and waste heat recycling difficulty of high temperature powdery reduced calcine in cooling procedure, mainly so as to cause roasting
The problem that concentrate is of poor quality, roasting energy consumption is high, can be widely applied to high-temperature powder iron ore, manganese ore etc. and easily sends out after reduction roasting
The mineral resources of raw oxidation reaction, improve the economic value of such resources development and utilization.
Detailed description of the invention
Fig. 1 is the connection relationship diagram of high temperature reduction calcining cooling protection residual neat recovering system of the present invention；
Appended drawing reference: 1, primary dust removing device；2, level-one fluid-bed heat exchanger；3, nitrogen booster fan；4, Nitrogen pipe network；5, it fluidizes
Bed preheater；6, air pressurized blower；7, material envelope valve；8, boiler feed；9, three-level heat exchanger；10, secondary ash collector；11,
Second level fluid-bed heat exchanger；12, oxygen analyzer；13, electronic to idle discharge air valve；14, desalination water pump；15, the equipment of making nitrogen；16, it makes
Starch stirred tank；17, boiler drum.
Specific embodiment
The present invention is described in further details with reference to the accompanying drawing.
As shown in Figure 1, a kind of high temperature reduction calcining cooling protection residual neat recovering system, including level-one fluid-bed heat exchanger 2,
2 discharge port of level-one fluid-bed heat exchanger is connected with 11 feed inlet of second level fluid-bed heat exchanger, level-one fluid-bed heat exchanger 2 with
11 bottom air inlet mouth of second level fluid-bed heat exchanger is connected by nitrogen booster fan 3 with Nitrogen pipe network 4, top outlet inlet difference
It is connected with 1 air inlet of primary dust removing device, 1 exhaust outlet of primary dust removing device is connected with 10 air inlet of secondary ash collector,
10 exhaust outlet of secondary ash collector is connected with 9 air inlet of three-level heat exchanger, and 9 exhaust outlet of three-level heat exchanger passes through nitrogen booster fan
3 are connected with level-one fluid-bed heat exchanger 2 with the air inlet of 11 bottom of second level fluid-bed heat exchanger respectively, 9 row of three-level heat exchanger
Pipeline between port and nitrogen booster fan 3 is equipped with oxygen analyzer 12, between oxygen analyzer 12 and nitrogen booster fan 3
Pipeline be equipped with it is electronic to idle discharge air valve 13, oxygen analyzer 12 is electrically connected idle discharge air valve 13 with electronic.In three-level heat exchanger 9
Boiler tube import is connected with desalination water pump 14, and outlet is connected to boiler feed 8,11 boiler tube of second level fluid-bed heat exchanger
Import is connected to 8 outlet pipe of boiler feed, and outlet is connected with 17 water inlet pipe of boiler drum, 17 gas outlet of boiler drum and one
The air inlet of grade 2 boiler tube of fluid-bed heat exchanger is connected, and the gas outlet of level-one fluid-bed heat exchanger 2 is connected with vapor wheel unit
It is logical；Nitrogen pipe network 4 is connected with the gas outlet of the equipment of making nitrogen 15；11 discharge port of second level fluid-bed heat exchanger by material envelope valve 7 with
5 feed inlet of fluid bed preheat device is connected, material envelope valve 7 and 5 bottom of fluid bed preheat device air inlet respectively with air pressurized wind
6 air outlet of machine is connected, and the discharge port of fluid bed preheat device 5 is connected with pulping stirred tank 16.
The operational process of above system includes following procedure, wherein level-one fluid-bed heat exchanger 2 and second level fluidized bed heat exchanger
Cooling medium is the demineralized water being discharged from boiler feed 8 in device 11.
Step 1: starting nitrogen booster fan 3, by the nitrogen of 15 nitrogen outlet of equipment of making nitrogen discharge via Nitrogen pipe network 4
Level-one fluid-bed heat exchanger 2 and second level fluid-bed heat exchanger 2 are introduced respectively, and are circulated to whole system, into oxygen analyzer 12,
When oxygen analyzer 12 shows that oxygen concentration is lower than 2%, illustrate that nitrogen atmosphere meets the condition of feeding intake in system；
Step 2: high temperature reduction calcining is put into level-one fluid-bed heat exchanger 2, the high temperature reduction calcining is in level-one fluidized bed heat exchanger
The fluidized state of low flow velocity is formed under the action of 2 bottom nitrogen of device, it is slowly mobile to discharge port, finally it is discharged by discharge port
Second level fluid-bed heat exchanger 11.In the process, high temperature reduction calcining is mainly and in 2 boiler tube wall of level-one fluid-bed heat exchanger
Demineralized water carries out heat exchange, and nitrogen only takes away a small amount of heat；Reduced calcine after cooling enters second level fluid-bed heat exchanger 11
In, and it is cooled to 200-400 DEG C with state same in level-one fluid-bed heat exchanger 2, low-temperature reduction calcining is obtained, the low temperature
Reduced calcine is discharged into material envelope valve 7 from discharge port and forms material envelope, prevents the superior and the subordinate's difference gas source from collaborating, it is pure to reduce circulating nitrogen gas
Spend or cause nitrogen losses；
Step 3: starting air pressurized blower 6, is passed through compressed air in material envelope valve 7 and 5 bottom of fluid bed preheat device, low temperature is also
Former calcining feeds fluid bed preheat device under compressed air effect, and carries out heat exchange with fluidized state and compressed air, obtains
Combustion air and temperature after to preheating are lower than 100 DEG C of ultralow temperature reduced calcine, which enters pulping and stir
Mix and enter subsequent sorting operation after 16 pulping of slot, when ultralow temperature calcining and air contact can mild oxidation at ferromagnetic γ-
Fe2O3, and the heat released when oxidation reaction can be utilized, heat consumption when roasting is reduced, remaining recuperation of heat utility value is improved；It helps
It is combustion-supporting that combustion air by 5 top outlet inlet of fluid bed preheat device enters roaster combustion chamber, can reduce roasting heat consumption；
Step 4: the nitrogen being discharged from level-one fluid-bed heat exchanger 2 and 11 top outlet inlet of second level fluid-bed heat exchanger respectively into
Enter and enter secondary ash collector 10 after 1 dedusting of primary dust removing device, enters three-level heat exchanger 9 after the purification of secondary ash collector 10, and it is remaining
Enter oxygen analyzer 12 after the demineralized water heat exchange being discharged in heat boiler 8, when oxygen analyzer 12 shows that oxygen concentration is lower than 2%, then leads to
It crosses nitrogen booster fan 3 and enters level-one fluid-bed heat exchanger 2 and second level fluid-bed heat exchanger 11, nitrogen obtains cycling and reutilization,
Reduce nitrogen total flow, the nitrogen amount that the equipment of making nitrogen 15 only loses in replenishment system；When oxygen analyzer 12 shows oxygen concentration
It is electronic that the opening of idle discharge air valve 13 is emptied when equal to or higher than 2%, and new nitrogen is filled into from the equipment of making nitrogen 15, until oxygen
Analyzer 12 continues next cooling cycle after showing oxygen concentration lower than 2%；So far, high temperature reduction calcining is in nitrogen protection atmosphere
In cooled down, and most of waste heat is exchanged into demineralized water, demineralized water forms steam after being heated, then successively via pot
Furnace oxygen-eliminating device 8, secondary streams are changed after a heat exchanger 11, boiler drum 17 and level-one stream change the formation superheated steam of a heat exchanger 2 and are sent into
Vapor wheel unit recycles.
It should be noted that fluid-bed heat exchanger and deduster may be other series in the present invention, running
Cheng Zhongke is adjusted according to actual needs, which also should belong to protection scope of the present invention.
Claims (3)
1. a kind of high temperature reduction calcining cooling protection residual neat recovering system, which is characterized in that the system includes that level-one fluidized bed changes
Hot device, level-one fluid-bed heat exchanger discharge port are connected with second level fluid-bed heat exchanger feed inlet, level-one fluid-bed heat exchanger with
Second level fluid-bed heat exchanger bottom air inlet mouth is connected by nitrogen booster fan with Nitrogen pipe network, and top outlet inlet is respectively with one
A primary dust removing device air inlet is connected, and primary dust removing device exhaust outlet is connected with secondary ash collector air inlet, two-stage dust removal
Device exhaust outlet is connected with three-level heat exchanger air inlet, three-level heat exchanger exhaust outlet by nitrogen booster fan respectively with level-one stream
Heat exchanger of fluidized bed is connected with the air inlet of second level fluid-bed heat exchanger bottom；The three-level heat exchanger exhaust outlet and nitrogen pressurize
Pipeline between blower is equipped with oxygen analyzer, is equipped with boiler tube inside I and II fluid-bed heat exchanger and three-level heat exchanger,
Three-level heat exchanger boiler tube import is connected with desalination water pump, and outlet is connect with boiler feed, second level fluid-bed heat exchanger
Boiler tube import is connected to boiler feed outlet pipe, outlet be connected with boiler drum water inlet, boiler drum gas outlet and
The air inlet of level-one fluid-bed heat exchanger boiler tube is connected, and the gas outlet of level-one fluid-bed heat exchanger is connected with vapor wheel unit
It is logical；The Nitrogen pipe network is connected with the nitrogen outlet of the equipment of making nitrogen；The second level fluid-bed heat exchanger discharge port passes through material envelope
Valve is connected with fluid bed preheat device feed inlet, material envelope valve and fluid bed preheat device bottom air inlet respectively with air pressurized wind
Machine air outlet is connected, and the discharge port of fluid bed preheat device is connected with pulping stirred tank.
2. a kind of high temperature reduction calcining cooling protection residual neat recovering system as described in claim 1, which is characterized in that the oxygen
Pipeline between analyzer and nitrogen booster fan is equipped with electronic to idle discharge air valve, and oxygen analyzer is with electronic to idle discharge air valve electricity
Connection.
3. a kind of method for carrying out the recycling of high temperature reduction calcining cooling protection waste heat using system as claimed in claim 1 or 2,
It is characterized in that, method includes the following steps:
(1) start nitrogen booster fan, the nitrogen that the equipment of making nitrogen is discharged is introduced into level-one fluidized bed via Nitrogen pipe network respectively and is changed
Hot device and second level fluid-bed heat exchanger, and it is circulated to whole system, when the oxygen analyzer in nitrogen return pipeline shows oxygen concentration
It feeds intake when lower than 2%；
(2) high temperature reduction calcining is put into level-one fluid-bed heat exchanger, the high temperature reduction calcining is at level-one fluid-bed heat exchanger bottom
The fluidized state of low flow velocity is formed under the action of portion's nitrogen, it is slowly mobile to discharge port, second level is finally discharged by discharge port
Fluid-bed heat exchanger, and 200- is cooled to state same in level-one fluid-bed heat exchanger in second level fluid-bed heat exchanger
400 DEG C, low-temperature reduction calcining is obtained, which is discharged into material envelope valve from discharge port and forms material envelope；
(3) start air pressurized blower, be passed through compressed air in material envelope valve and fluid bed preheat device bottom, low-temperature reduction calcining exists
Fluid bed preheat device is fed under compressed air effect, and carries out heat exchange with compressed air, the combustion air after being preheated
It is lower than 100 DEG C of ultralow temperature reduced calcine with temperature, which enters pulping stirred tank and sort work for subsequent
Industry, it is combustion-supporting that combustion air by fluid bed preheat device top outlet inlet enters roaster combustion chamber；
(4) level-one is respectively enterd from the nitrogen that level-one fluid-bed heat exchanger and second level fluid-bed heat exchanger top outlet inlet are discharged to remove
Enter secondary ash collector after dirt device dedusting, three-level heat exchanger is entered after secondary ash collector purifies, is squeezed by desalination water pump
Demineralized water heat exchange after enter oxygen analyzer, when oxygen analyzer show oxygen concentration be lower than 2% when, then by nitrogen booster fan into
Enter level-one fluid-bed heat exchanger and second level fluid-bed heat exchanger；It is electronic when oxygen analyzer shows that oxygen concentration is equal to or higher than 2%
Idle discharge air valve is automatically opened and is emptied, the equipment of making nitrogen fills into new nitrogen；Demineralized water forms steam after being heated, then according to
Secondary change after a heat exchanger, boiler drum and level-one stream change a heat exchanger formation superheated steam via boiler feed, secondary streams is sent
Enter vapor wheel unit recycling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910103992.3A CN109813124A (en) | 2019-02-01 | 2019-02-01 | A kind of high temperature reduction calcining cooling protection residual neat recovering system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910103992.3A CN109813124A (en) | 2019-02-01 | 2019-02-01 | A kind of high temperature reduction calcining cooling protection residual neat recovering system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109813124A true CN109813124A (en) | 2019-05-28 |
Family
ID=66606338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910103992.3A Pending CN109813124A (en) | 2019-02-01 | 2019-02-01 | A kind of high temperature reduction calcining cooling protection residual neat recovering system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109813124A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111961845A (en) * | 2020-07-01 | 2020-11-20 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Sectional cooling method for high-temperature powdery iron ore reduction calcine |
| CN113005289A (en) * | 2019-12-19 | 2021-06-22 | 有研资源环境技术研究院(北京)有限公司 | Method for improving zinc oxygen pressure leaching rate by using calcine waste heat and oxygen pressure leaching kettle exhaust |
| CN114165781A (en) * | 2022-01-14 | 2022-03-11 | 沈阳鑫博工业技术股份有限公司 | Iron ore calcine waste heat boiler fluidized air waste heat recovery and cyclic utilization device and method |
| CN114593612A (en) * | 2022-01-26 | 2022-06-07 | 何荣志 | High-efficient recovery system of stove low temperature waste heat |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980052527A (en) * | 1996-12-24 | 1998-09-25 | 김종진 | High-temperature reduced iron cooling device and flow blow reduction device for iron ore with this cooling device |
| CN103088213A (en) * | 2011-11-04 | 2013-05-08 | 中冶长天国际工程有限责任公司 | Device and method for cooling direct reduction iron |
| CN103789536A (en) * | 2014-01-28 | 2014-05-14 | 酒泉钢铁(集团)有限责任公司 | Oxygen-free cooling and residual heat recovering method for magnetizing-roasted iron ore product |
| CN106402820A (en) * | 2016-11-14 | 2017-02-15 | 大连科林能源工程技术开发有限公司 | Waste heat boiler for quenching and cooling process of suspended magnetization roasting powder of mine powder |
| CN108588405A (en) * | 2018-06-15 | 2018-09-28 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of refractory iron ore suspending magnetization roasting-dry type anaerobic cooling technique |
| CN209857666U (en) * | 2019-02-01 | 2019-12-27 | 甘肃酒钢集团宏兴钢铁股份有限公司 | High-temperature reduction calcine cooling protection waste heat recovery system |
-
2019
- 2019-02-01 CN CN201910103992.3A patent/CN109813124A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980052527A (en) * | 1996-12-24 | 1998-09-25 | 김종진 | High-temperature reduced iron cooling device and flow blow reduction device for iron ore with this cooling device |
| CN103088213A (en) * | 2011-11-04 | 2013-05-08 | 中冶长天国际工程有限责任公司 | Device and method for cooling direct reduction iron |
| CN103789536A (en) * | 2014-01-28 | 2014-05-14 | 酒泉钢铁(集团)有限责任公司 | Oxygen-free cooling and residual heat recovering method for magnetizing-roasted iron ore product |
| CN106402820A (en) * | 2016-11-14 | 2017-02-15 | 大连科林能源工程技术开发有限公司 | Waste heat boiler for quenching and cooling process of suspended magnetization roasting powder of mine powder |
| CN108588405A (en) * | 2018-06-15 | 2018-09-28 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of refractory iron ore suspending magnetization roasting-dry type anaerobic cooling technique |
| CN209857666U (en) * | 2019-02-01 | 2019-12-27 | 甘肃酒钢集团宏兴钢铁股份有限公司 | High-temperature reduction calcine cooling protection waste heat recovery system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113005289A (en) * | 2019-12-19 | 2021-06-22 | 有研资源环境技术研究院(北京)有限公司 | Method for improving zinc oxygen pressure leaching rate by using calcine waste heat and oxygen pressure leaching kettle exhaust |
| CN113005289B (en) * | 2019-12-19 | 2022-05-27 | 有研资源环境技术研究院(北京)有限公司 | Method for improving zinc oxygen pressure leaching rate by using calcine waste heat and oxygen pressure leaching kettle exhaust |
| CN111961845A (en) * | 2020-07-01 | 2020-11-20 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Sectional cooling method for high-temperature powdery iron ore reduction calcine |
| CN114165781A (en) * | 2022-01-14 | 2022-03-11 | 沈阳鑫博工业技术股份有限公司 | Iron ore calcine waste heat boiler fluidized air waste heat recovery and cyclic utilization device and method |
| CN114593612A (en) * | 2022-01-26 | 2022-06-07 | 何荣志 | High-efficient recovery system of stove low temperature waste heat |
| CN114593612B (en) * | 2022-01-26 | 2024-01-23 | 何荣志 | High-efficient recovery system of kiln low temperature waste heat |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109813124A (en) | A kind of high temperature reduction calcining cooling protection residual neat recovering system and method | |
| CN102560089B (en) | Magnetic roasting system and process for powder of refractory iron ore | |
| CN106048210B (en) | A kind of refractory iron ore mountain flour oxidation-magnetizing roast system and technique | |
| CN101699187B (en) | Coal combustion apparatus capable of separating carbon dioxide and separation method thereof | |
| CN103031433B (en) | Fluidized oxidation roasting-fluidized reduction roasting system and roasting process for titaniferous iron concentrate | |
| CN103011090B (en) | Method for producing sulfur by using pyrolysis-reducing united technique | |
| CN106011457B (en) | A kind of refractory iron ore mountain flour magnetizing roast system and technique | |
| CN108239700B (en) | Coal-based fluidization reduction roasting system and roasting method thereof | |
| CN104152165B (en) | The metallurgical reducing process of coal gas circulation coal wholegrain radial sector pyrolysis coupling and system | |
| CN106244175B (en) | Fume high-temperature carbon restores denitration and heat-energy recovering apparatus | |
| CN102628097A (en) | Method for preparing iron concentrate powder by reducing and magnetizing red mud in fluidized bed | |
| CN111961845A (en) | Sectional cooling method for high-temperature powdery iron ore reduction calcine | |
| CN108870407A (en) | It is a kind of that the method for sludge is handled based on the chemical chain gasification that copper ashes is oxygen carrier and realizes the device of this method | |
| CN201670845U (en) | High temperature solid slag sensible heat recovery device | |
| CN104878193B (en) | A kind of system and method for Low grade manganese ore fluidized reduction roasting | |
| CN205856556U (en) | A kind of refractory iron ore stone powder oxidation magnetizing roast system | |
| CN209857666U (en) | High-temperature reduction calcine cooling protection waste heat recovery system | |
| CN109971906A (en) | A kind of restoring method of ultralow carbon emission production sponge iron | |
| CN108285973A (en) | The calciner and method of a kind of iron oxide, manganese oxide ore | |
| CN116694923A (en) | Device and process for treating siderite and hematite by adopting coal-based suspension roasting | |
| CN207973788U (en) | A kind of coal base fluidization reduction roasting system | |
| CN204039332U (en) | The metallurgical restoring system of coal gas circulation coal wholegrain radial sector pyrolysis coupling | |
| CN113957238B (en) | Reduction roasting method and reduction roasting system for metal oxide-containing material capable of realizing energy conservation and emission reduction | |
| CN214142482U (en) | Segmentation cooling system of high-temperature powdery iron ore reduction calcine | |
| CN117887956A (en) | Roasting process of thermal cycle type iron ore oxidation-reduction magnetization roasting device |
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 |