CN104329945B - A kind of iron ore magnetizing roast ore deposit waste heat reclaiming process and equipment - Google Patents
A kind of iron ore magnetizing roast ore deposit waste heat reclaiming process and equipment Download PDFInfo
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- CN104329945B CN104329945B CN201410566257.3A CN201410566257A CN104329945B CN 104329945 B CN104329945 B CN 104329945B CN 201410566257 A CN201410566257 A CN 201410566257A CN 104329945 B CN104329945 B CN 104329945B
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- 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
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- 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
The invention discloses a kind of iron ore magnetizing roast ore deposit waste heat reclaiming process, employing following steps :) use the single cylinder cooling machine with built-in water injector that high temperature iron Ore magnetizing roast ore deposit water spray is chilled to 450～500 DEG C；Two) use grate-cooler or single cylinder cooling machine will be chilled to air-cooled to less than 100 DEG C of the iron ore magnetizing roast ore deposit of 450～500 DEG C, the hot blast going out grate-cooler or single cylinder cooling machine be introduced magnetizing roast equipment, as the combustion air of fuel combustion simultaneously.The present invention also disclosed the equipment realizing above-mentioned iron ore magnetizing roast ore deposit waste heat reclaiming process.The present invention has the anaerobic cooling of iron ore high-temperature magnetizing roast ore deposit and the function of waste heat recovery concurrently, while ensureing iron ore magnetizing roast mineral nitrogen amount, it is achieved that the heat recovery of high temperature magnetization roasted ore, roasting heat consumption can be greatly lowered, reduce beneficiation cost；Work on the spot environment can also be improved, there is the feature of energy-conserving and environment-protective.
Description
Technical field
The invention belongs to iron ore dressing technical field, be specifically related to a kind of iron ore magnetizing roast ore deposit waste heat reclaiming process and
Equipment.
Background technology
China's iron ore deposit enriches, but rich ore is few, lean ore is many, and population mean grade, need to be through complexity 30～about 33%
Ore dressing process can be only achieved the grade requirement of commercial Application level.Furthermore, the valuable mineral in most Ores is that particulate is to micro-
Fine-grained disseminated grain, and ore type is complicated, Associated Constituents is many, therefore beneficiation cost is high.On the one hand this cause China substantial amounts of low
Grade iron ore deposit cannot effectively be developed, and causes the serious waste of mineral resources；On the other hand result also in
The external import (external dependence degree of current China iron ore is more than 60%) of a large amount of iron ores, iron ore international market valency
The fluctuation of lattice, is stern challenge to economic security of the country and industrial economy benefit.
Conventional beneficiation method has gravity treatment, magnetic separation, flotation and combined process flow, magnetizing roast-low intensity magnetic separation etc..And for weak
Armco magnetic iron ore mineral, magnetizing roast-low intensity magnetic separation technology is effective beneficiation method；Magnetizing roast equipment mainly has perpendicular
Stove, rotary kiln, fluidized bed furnace, flash roaster etc..Due to magnetic iron ore ferromagnetic after roasting at high temperature with air contact
Easily become the bloodstone of weak magnetic by secondary oxidation, affect grade and the response rate of magnetic concentrate, and then affect beneficiation cost,
It is thus desirable to rapidly it is cooled down in weakly reducing atmosphere or in the neutral environment of isolation air.
At present, the most frequently used type of cooling is also the method used in current industrial, is directly to be poured in pond by roasted ore
Carry out water seal cooling.The advantage of this type of cooling is: the type of cooling is simple, good cooling results, but shortcoming is to need to disappear
Consuming substantial amounts of water, the dust-containing water steam of generation makes work on the spot bad environments, and the waste heat after roasting also can not obtain
Recycle, cause the loss of energy, considerably increase beneficiation cost.Chinese invention patent application 201410041638.X
Disclose a kind of iron ore magnetizing roast product anaerobic cooling and exhaust heat recovering method, by the high-temperature material after roasting from vertical
The top of cooler loads, and selects CO or H2Volume content is not more than the blast furnace gas of 30%, logical from shaft cooler bottom
Entering, gas material countercurrent flow in shaft cooler, material is cooled down, and blast furnace gas temperature raises, it is achieved waste heat circulation
Utilize.The cooling medium of this process choice is blast furnace gas, is difficult to obtain；And cooling device is shaft cooler, right
Raw meal particle size has certain restriction；No matter from cooling medium or the selection of cooling device, the most not there is versatility, the day of one's doom
Make the method application in ore dressing field.Therefore, a kind of height that can be widely applied for magnetizing roast technical field is developed
Temperature roasted ore waste heat reclaiming process and equipment, reduce roasting heat consumption, improve work on the spot environment, to iron ore dressing cost
Reduction and promote magnetizing roast technical field Environmental Protection Level significant.
Summary of the invention
The present invention is directed to technical problem present in prior art, it is provided that a kind of iron ore magnetizing roast ore deposit waste heat reclaiming process
And equipment, this Processes and apparatus can effectively reduce roasting heat consumption, and then reduce beneficiation cost, improve work on the spot environment,
There is energy-conserving and environment-protective, widely used feature.
The present invention is directed to the technical scheme that technical problem present in prior art taked is: a kind of iron ore magnetization
Roasted ore waste heat reclaiming process, employing following steps:
One) use single cylinder cooling machine with built-in water injector is sprayed water in high temperature iron Ore magnetizing roast ore deposit be chilled to 450～
500℃；
Two) use grate-cooler or single cylinder cooling machine by air-cooled for the iron ore magnetizing roast ore deposit being chilled to 450～500 DEG C to 100 DEG C
Hereinafter, the hot blast going out grate-cooler or single cylinder cooling machine is introduced roasting apparatus, as the combustion air of fuel combustion simultaneously.
The present invention is directed to another technical scheme that technical problem present in prior art taked is: one realizes above-mentioned
The equipment of iron ore magnetizing roast ore deposit waste heat reclaiming process, including the single cylinder cooling machine with built-in water injector and series connection with it
Grate-cooler or single cylinder cooling machine, the charging aperture of the single cylinder cooling machine of the built-in water injector of described band unloads with magnetizing roast equipment
Material mouth connects, and discharging opening is connected with the charging aperture of described grate-cooler or single cylinder cooling machine；Described grate-cooler or single cylinder cooling machine
The hot-blast outlet being provided with hot-blast outlet, grate-cooler or single cylinder cooling machine is connected with magnetizing roast equipment by sirocco reclamation airduct；
Water pipeline and air draft pipe, described water pipeline and water spray are set inside the single cylinder cooling machine of the built-in water injector of described band
System connects, and described air draft pipe is connected with steam treatment system.
The spill firebrick that the feed end inner surface of the single cylinder cooling machine of the built-in water injector of described band is not waited by thickness is formed.
The water exit position of described water pipeline is arranged on the feed end of the single cylinder cooling machine of the built-in water injector of described band.
Described sirocco reclamation pipe is provided with dust-precipitator.
Described sirocco reclamation pipe is provided with blower fan.
Described sirocco reclamation pipe is provided with valve.
Described magnetizing roast equipment is any one in shaft furnace, rotary kiln, fluidized bed furnace and flash roaster.
Described water pipeline is provided with injection flow rate adjusting means.
The invention have the advantages that: the present invention has high temperature magnetization roasted ore anaerobic cooling and the function of waste heat recovery concurrently,
And work on the spot environment can be improved.Go out in the single cylinder cooling machine by band water injector of the high-temperature roasting ore deposit of magnetizing roast equipment
Water spray is to 450～500 DEG C, it is achieved the anaerobic cooling in magnetizing roast ore deposit；The steam of generation is drawn to water and steams by air draft pipe
Vapour processing system, prevents steam from entering magnetizing roast equipment, affects the properly functioning of magnetizing roast equipment；Band water spray dress
The single cylinder cooling machine put exports 450～500 DEG C of roasted ores and carries out recuperation of heat by grate-cooler or single cylinder cooling machine, reclaims thermal source
From in the sensible heat of 450～500 DEG C of roasted ores and Fe3O4Phase transition is γ-Fe2O3The latent heat that thing phase time discharges
(451kJ/kg Fe3O4).The hot blast going out grate-cooler or single cylinder cooling machine enters magnetizing roast equipment through sirocco reclamation airduct
As fuel combustion combustion air, roasting heat consumption can be greatly lowered.Relative to existing magnetic roasting process, the present invention can
Unit roasted ore heat consumption is made to reduce by 100～110kcal/kg roasted ores, wherein roasted ore sensible heat 65～75kcal/kg roasting
Ore deposit, roasted ore phase transition latent heat 35kcal/kg roasted ore.The present invention can effectively reduce roasting heat consumption, and then reduces
Beneficiation cost, and work on the spot environment can be improved, there is the feature of energy-conserving and environment-protective, can be widely applied to shaft furnace, return
The magnetization roasting apparatus such as rotary kiln, fluidized bed furnace, flash roaster.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the first equipment realizing iron ore magnetizing roast ore deposit of the present invention waste heat reclaiming process；
Fig. 2 is the schematic diagram of the second equipment realizing iron ore magnetizing roast ore deposit of the present invention waste heat reclaiming process.
In figure: band arrow dotted line is airflow direction, band arrow solid line is stream direction, 1 be grate-cooler, 2 be carry built-in spray
The single cylinder cooling machine of water device, 3 be water pipeline, 4 be air draft pipe, 5 be dust-precipitator, 6 be blower fan, 7 be that hot blast returns
Call prisoners in after letting them out for exercise pipe, 8 be water injection system, 9 be steam treatment system, 10 be magnetizing roast equipment, 10-1 be shaft furnace, 10-2
Be rotary kiln, 11 be single cylinder cooling machine, 12 be magnetizing roast equipment, 12-1 be fluidized bed furnace, 12-2 be flash roaster.
Detailed description of the invention
For the summary of the invention of the present invention, feature and effect can be further appreciated that, hereby enumerate following example, and coordinate accompanying drawing
Describe in detail as follows:
See Fig. 1 and Fig. 2, a kind of iron ore magnetizing roast ore deposit waste heat reclaiming process, comprise the following steps:
One) use single cylinder cooling machine 2 with built-in water injector is sprayed water in high temperature iron Ore magnetizing roast ore deposit be chilled to 450～
500℃；
Two) use grate-cooler 1 or single cylinder cooling machine 11 by air-cooled for the iron ore magnetizing roast ore deposit being chilled to 450～500 DEG C
To less than 100 DEG C, the hot blast going out grate-cooler 1 or single cylinder cooling machine 11 is introduced magnetizing roast equipment 10 or 12 simultaneously,
Combustion air as fuel combustion.
See Fig. 1, it is achieved the first equipment of above-mentioned iron ore magnetizing roast ore deposit waste heat reclaiming process, including carrying built-in spray
The single cylinder cooling machine 2 of water device and the grate-cooler 1 of series connection with it, the charging aperture of the single cylinder cooling machine 2 with built-in water injector
Being connected with the discharge port of magnetizing roast equipment 10, discharging opening is connected with the charging aperture of grate-cooler 1；Grate-cooler 1 is provided with hot blast
Outlet, the hot-blast outlet of grate-cooler 1 is connected with magnetizing roast equipment 10 by sirocco reclamation airduct 7；Carry built-in water spray dress
The single cylinder cooling machine 2 put is internal arranges water pipeline 3 and air draft pipe 4, and water pipeline 3 is connected with water injection system 8, takes out
Wind pipeline 4 is connected with steam treatment system 9.Grate-cooler 1 can be third generation grate-cooler or forth generation grate-cooler,
It can also be other type of grate-cooler；Above-mentioned water pipeline is provided with injection flow rate adjusting means, so that injection flow rate is controlled.
Above-mentioned magnetizing roast equipment 10 can be shaft furnace 10-1 or rotary kiln 10-2.
See Fig. 2, it is achieved the second equipment of above-mentioned iron ore magnetizing roast ore deposit waste heat reclaiming process, including carrying built-in spray
The single cylinder cooling machine 2 of water device and the single cylinder cooling machine 11 of series connection with it, the single cylinder cooling machine 2 with built-in water injector
Charging aperture is connected with the discharge port of magnetizing roast equipment 12, and discharging opening is connected with the charging aperture of single cylinder cooling machine 11；Monotubular
Cooler 11 is provided with hot-blast outlet, and the hot-blast outlet of single cylinder cooling machine 11 is set with magnetizing roast by sirocco reclamation airduct 7
Standby 12 connect；Single cylinder cooling machine 2 with built-in water injector is internal arranges water pipeline 3 and air draft pipe 4, sparge pipe
Road 3 is connected with water injection system 8, and air draft pipe 4 is connected with steam treatment system 9.Single cylinder cooling machine 11 uses and optimizes
Lifting blade version.Above-mentioned water pipeline is provided with injection flow rate adjusting means, so that injection flow rate is controlled.Above-mentioned magnetization
Roasting apparatus 12 can be fluidized bed furnace 12-1 or flash roaster 12-2.
Primarily serving the purpose of of the single cylinder cooling machine 2 of the built-in water injector of above-mentioned band will go out the high-temperature roasting ore deposit of magnetizing roast equipment
Water spray starvation chilling, controls the single cylinder cooling machine outlet roasted ore temperature with built-in water injector by regulation injection flow rate
At 450～500 DEG C, the water spray position of water pipeline 3 is positioned at the feed end of the single cylinder cooling machine 2 with built-in water injector,
Injection flow rate can carry built-in water spray according to the single cylinder cooling machine delivery end roasted ore temperature automatic adjustment with built-in water injector
The feed end of the single cylinder cooling machine 2 of device is provided with air draft pipe 4, is taken away by the steam that water spray produces, it is to avoid steam
Enter magnetizing roast device interior, affect the properly functioning of magnetizing roast system, water pipeline 3 and air draft pipe 4 and pass
Single cylinder cooling machine 2 with built-in water injector reaches a high temperature magnetizing roast ore deposit charging aperture, in time to going out magnetizing roast equipment
High-temperature roasting ore deposit carries out chilling, and the steam simultaneously produced also is taken away in time.
The charging aperture of grate-cooler 1 or single cylinder cooling machine 11 connects the discharging opening of the single cylinder cooling machine 2 with built-in water injector,
Grate-cooler 1 or single cylinder cooling machine 11 primarily serve the purpose of waste heat recovery, and magnetizing roast ore deposit is cooled to less than 100 DEG C.
Waste heat source has two, and one is the sensible heat of the single cylinder cooling machine 450～500 DEG C of roasted ores of outlet with built-in water injector；
It two is magnetic iron ore Fe3O4Carry out aerobic cooling at low temperatures, generate ferromagnetic gamma-Fe2O3Time the latent heat that discharges
(451kJ/kg Fe3O4).Grate-cooler 1 or single cylinder cooling machine 11 connect sirocco reclamation airduct 7, sirocco reclamation airduct 7
It is provided with dust-precipitator 5 and blower fan 6, draws wind by blower fan 6, the hot blast going out grate-cooler 1 or single cylinder cooling machine 11 is introduced
In magnetizing roast equipment 10 or 12, as the combustion air of fuel combustion.The effect of dust-precipitator 5 be go out grate-cooler 1 or
The hot blast of single cylinder cooling machine 11 carries out separating dedusting, and dust-precipitator 5 is provided with blanking airlock, and dust-precipitator 5 pattern can be
Expansion chamber, rotoclone collector, cottrell, bag filter or other type of dust-precipitator.Sirocco reclamation airduct 7
Being provided with valve, regulation enters the air quantity in magnetizing roast equipment 10 or 12.Water injection system 8 include water pump, nozzle,
Spray gun and control system.Steam treatment system 9 includes steam exhaust column, cottrell and exhaust blower.Above-mentioned magnetic
Change roasting apparatus and include but not limited to shaft furnace, rotary kiln, fluidized bed furnace and flash roaster.
Operation principle and the key problem in technology of the present invention are:
1) high temperature magnetization roasted ore two-step cooling: the high temperature magnetization roasted ore going out magnetizing roast equipment 10 or 12 enters in band
Put the single cylinder cooling machine 2 of water injector, control the single cylinder cooling machine 2 outlet roasting with built-in water injector by regulation injection flow rate
Burn ore deposit temperature at 450～500 DEG C.The feed end inner surface of the single cylinder cooling machine with built-in water injector is recessed by thickness not grade
Shape firebrick is formed, to extend the magnetizing roast ore deposit time of staying in water spray chilling district.Water spray position is positioned at band built-in water spray dress
The front end of the single cylinder cooling machine put, injection flow rate can be according to the single cylinder cooling machine delivery end roasted ore temperature with built-in water injector
It is automatically adjusted.Single cylinder cooling machine 2 with built-in water injector is internal arranges water pipeline 3 and air draft pipe 4, water injection system
8 introduce the water in water pipeline 3, and the water of ejection connects with the magnetizing roast ore deposit of the single cylinder cooling machine entered with built-in water injector
Touching, roasted ore temperature reduces rapidly under conditions of starvation, becomes steam, by air draft pipe 4 after water heat absorption
It is drawn to steam treatment system 9.High temperature magnetization roasted ore is chilled to necessarily control temperature through water spray, it is achieved under high temperature
Anaerobic cools down, to ensure magnetic concentrate grade and the response rate.Grate-cooler 1 or single cylinder cooling machine 11 will go out to carry built-in water spray dress
The roasted ore of the single cylinder cooling machine 2 put is cooled further to less than 100 DEG C.
2) heat recovery: go out the hot blast of grate-cooler 1 or single cylinder cooling machine 11 and draw under wind, through dust-precipitator 5 at blower fan 6
After gathering dust, entering in sirocco reclamation airduct 7, sirocco reclamation airduct 7 is connected with magnetizing roast equipment 10 or 12, as
The combustion air of magnetizing roast equipment 10 or 12, air force is controlled by the valve being arranged on sirocco reclamation airduct 7
System.Waste heat source has two, and one is the aobvious of the single cylinder cooling machine 450～500 DEG C of roasted ores of outlet with built-in water injector
Heat；It two is magnetic iron ore Fe3O4Carry out aerobic cooling at low temperatures, generate ferromagnetic gamma-Fe2O3Time the latent heat that discharges
(451kJ/kg Fe3O4).Unit roasted ore is 100～110kcal/kg roasted ores by the heat of sirocco reclamation, wherein
Roasted ore sensible heat 65～75kcal/kg roasted ore, roasted ore phase transition latent heat 35kcal/kg roasted ore, energy-saving effect
Substantially.
The present invention has high temperature magnetization roasted ore anaerobic cooling and the function of waste heat recovery concurrently, is ensureing magnetic concentrate grade and is returning
While yield and cooling, it is achieved that heat recovery, solve existing high temperature magnetization roasted ore cooling technique and be difficult to have
Effect reclaims the technical barrier of roasted ore heat, and can improve work on the spot environment.
Although being described the preferred embodiments of the present invention above in conjunction with accompanying drawing, but protection scope of the present invention is not
Being only limitted to above-mentioned detailed description of the invention, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.
It should be pointed out that, for those skilled in the art, without departing from the principles of the present invention some change
Enter and retouch, should be regarded as protection scope of the present invention.
Claims (8)
1. an iron ore magnetizing roast ore deposit waste heat reclaiming process, it is characterised in that employing following steps:
One) use single cylinder cooling machine with built-in water injector is sprayed water in high temperature iron Ore magnetizing roast ore deposit be chilled to 450～
500℃；
Two) use grate-cooler or single cylinder cooling machine by air-cooled for the iron ore magnetizing roast ore deposit being chilled to 450～500 DEG C to 100 DEG C
Hereinafter, the hot blast going out grate-cooler or single cylinder cooling machine is introduced roasting apparatus, as the combustion air of fuel combustion simultaneously；
Realize the equipment of described iron ore magnetizing roast ore deposit waste heat reclaiming process, including the single cylinder cooling machine with built-in water injector
And the grate-cooler of series connection with it or single cylinder cooling machine, the charging aperture of the single cylinder cooling machine of the built-in water injector of described band and magnetization
Roasting apparatus discharge port connects, and discharging opening is connected with the charging aperture of described grate-cooler or described single cylinder cooling machine；Described cooling
Machine or described single cylinder cooling machine are provided with hot-blast outlet, and the hot-blast outlet of described grate-cooler or described single cylinder cooling machine passes through hot blast
Reclaim airduct to be connected with described magnetizing roast equipment；Inside the single cylinder cooling machine of the built-in water injector of described band, sparge pipe is set
Road and air draft pipe, described water pipeline is connected with water injection system, and described air draft pipe is connected with steam treatment system.
Iron ore magnetizing roast ore deposit the most according to claim 1 waste heat reclaiming process, it is characterised in that in described band
The spill firebrick that the feed end inner surface of the single cylinder cooling machine putting water injector is not waited by thickness is formed.
Iron ore magnetizing roast ore deposit the most according to claim 1 and 2 waste heat reclaiming process, it is characterised in that described
The water exit position of water pipeline is arranged on the feed end of the single cylinder cooling machine of the built-in water injector of described band.
Iron ore magnetizing roast ore deposit the most according to claim 1 waste heat reclaiming process, it is characterised in that described hot blast
Reclaim airduct and be provided with dust-precipitator.
5. according to the iron ore magnetizing roast ore deposit waste heat reclaiming process described in claim 1 or 4, it is characterised in that described
Sirocco reclamation airduct is provided with blower fan.
Iron ore magnetizing roast ore deposit the most according to claim 1 waste heat reclaiming process, it is characterised in that described heat
Wind reclaims airduct and is provided with valve.
Iron ore magnetizing roast ore deposit the most according to claim 1 waste heat reclaiming process, it is characterised in that described magnetization
Roasting apparatus is any one in shaft furnace, rotary kiln, fluidized bed furnace and flash roaster.
8. according to the iron ore magnetizing roast ore deposit waste heat reclaiming process described in claim 2 or 4, it is characterised in that described
Water pipeline is provided with injection flow rate adjusting means.
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| CN201410566257.3A CN104329945B (en) | 2014-10-22 | 2014-10-22 | A kind of iron ore magnetizing roast ore deposit waste heat reclaiming process and equipment |
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|---|---|---|---|
| CN201410566257.3A CN104329945B (en) | 2014-10-22 | 2014-10-22 | A kind of iron ore magnetizing roast ore deposit waste heat reclaiming process and equipment |
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| CN104329945B true CN104329945B (en) | 2016-08-17 |
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| CN106854684B (en) * | 2016-12-27 | 2018-11-23 | 甘肃酒钢集团宏兴钢铁股份有限公司 | One kind being used for iron ore magnetizing roast tunnel oven and iron ore magnetizing roast method |
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| US4299561A (en) * | 1980-03-18 | 1981-11-10 | Stokes Keith J | Recovery of heat from flue gas |
| CN200940117Y (en) * | 2006-09-05 | 2007-08-29 | 郑州登峰熔料有限公司 | Cooling equipment for high temperature clinker |
| CN201104134Y (en) * | 2007-10-23 | 2008-08-20 | 济南重工股份有限公司 | Water-cooled nitrogen gas sealing single-tube cooler |
| CN102538484A (en) * | 2010-12-09 | 2012-07-04 | 贵阳铝镁设计研究院有限公司 | Direct cooling water system for cooling machines |
| CN203065359U (en) * | 2012-12-27 | 2013-07-17 | 天津水泥工业设计研究院有限公司 | White cement clinker bleaching equipment |
| CN103307893A (en) * | 2013-06-21 | 2013-09-18 | 成都建筑材料工业设计研究院有限公司 | Waste heat recovery system of grate cooler |
| CN203333729U (en) * | 2013-05-03 | 2013-12-11 | 湖南长拓高科冶金有限公司 | Roasted material cooling and waste heat recovering device and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4299561A (en) * | 1980-03-18 | 1981-11-10 | Stokes Keith J | Recovery of heat from flue gas |
| CN200940117Y (en) * | 2006-09-05 | 2007-08-29 | 郑州登峰熔料有限公司 | Cooling equipment for high temperature clinker |
| CN201104134Y (en) * | 2007-10-23 | 2008-08-20 | 济南重工股份有限公司 | Water-cooled nitrogen gas sealing single-tube cooler |
| CN102538484A (en) * | 2010-12-09 | 2012-07-04 | 贵阳铝镁设计研究院有限公司 | Direct cooling water system for cooling machines |
| CN203065359U (en) * | 2012-12-27 | 2013-07-17 | 天津水泥工业设计研究院有限公司 | White cement clinker bleaching equipment |
| CN203333729U (en) * | 2013-05-03 | 2013-12-11 | 湖南长拓高科冶金有限公司 | Roasted material cooling and waste heat recovering device and system |
| CN103307893A (en) * | 2013-06-21 | 2013-09-18 | 成都建筑材料工业设计研究院有限公司 | Waste heat recovery system of grate cooler |
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