CN203174121U - Rotary gas-solid heat exchange device capable of utilizing waste head of furnace slag - Google Patents
Rotary gas-solid heat exchange device capable of utilizing waste head of furnace slag Download PDFInfo
- Publication number
- CN203174121U CN203174121U CN2013201729397U CN201320172939U CN203174121U CN 203174121 U CN203174121 U CN 203174121U CN 2013201729397 U CN2013201729397 U CN 2013201729397U CN 201320172939 U CN201320172939 U CN 201320172939U CN 203174121 U CN203174121 U CN 203174121U
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- China
- Prior art keywords
- heat exchange
- cylindrical shell
- exchanger rig
- rotary type
- air
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/02—Physical or chemical treatment of slags
- C21B2400/022—Methods of cooling or quenching molten slag
- C21B2400/026—Methods of cooling or quenching molten slag using air, inert gases or removable conductive bodies
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/05—Apparatus features
- C21B2400/066—Receptacle features where the slag is treated
- C21B2400/068—Receptacle features where the slag is treated with a sealed or controlled environment
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/08—Treatment of slags originating from iron or steel processes with energy recovery
Abstract
The utility model relates to a rotary gas-solid heat exchange device capable of utilizing the waste head of furnace slag. The device comprises a heat exchange barrel, a rotary control motor, a cooling fan and a spiral air generator, wherein the front end and rear end of the heat exchange barrel are sealed; the heat exchange barrel is provided with a feeding hole, an air outlet hole, a discharge hole, an air inlet hole and a spiral track; the air inlet direction of the cooling fan is opposite to the feeding direction; the rotary gas-solid heat exchange device is also provided with a temperature and pressure controller and a rotating speed frequency converter. The cooling air is pushed along a spiral channel, and direct contact heat exchange is carried out on the furnace slag particles in a reverse form; the rotary gas-solid heat exchange device can better control the air inlet quantity of the cooling fan, the air outlet quantity of the hot air outlet of the rotary heat exchange device and the feed and discharge quantity of slag charge, thus enlarging the contact area of a heat exchange medium to the utmost extent and saving the energy cost to the utmost extent. The device can be used for solving the problems that the existing blast furnace slag heat exchange is large in water consumption, easily generates harmful gas which pollutes the environment, causes resource waste, and is high in cost and poor in effect.
Description
Technical field
The utility model belongs to blast furnace slag heat transfer technology field, relates in particular to a kind of rotary type gas-solid heat-exchanger rig that utilizes afterheat of slags.
Background technology
In the iron-making production, coke melts iron ore and the generation reduction reaction in the blast furnace internal-combustion, produces about 1450 ℃ molten iron and blast furnace slag.Blast furnace slag and molten iron are after separating, and molten iron enters next Production Flow Charts such as steel-making; Blast furnace slag is main byproduct, need flow out from blast furnace, and its energy that comprises is quite big.At present, blast furnace is whenever produced the 1t pig iron and is produced the 300kg slag approximately, and the temperature of discharge is about 1450 ℃.The 1t blast furnace slag contains the heat of 1700MJ approximately, is equivalent to the calorific value of 0.058t standard coal.Calculate with pig iron output in 2008, the heat that blast furnace slag produces is about 4.7067 hundred million MJ, and institute's heat content is amounted to the calorific value of 2,729 ten thousand tons of standard coals.If these blast furnace slags are recycling treatment in addition not, the significant wastage of available stock still not, and accumulate over a long period, certainly will cause to take up an area of and invade a series of serious problems such as field, contaminate environment.Therefore, the blast furnace slag resource utilization not only can turn waste into wealth, but also the occupying etc. of pollution, soil that can reduce environment.Thereby reach the situation of economic benefit and social benefit doulbe-sides' victory.
At present, the blast furnace slag treatment process generally has two kinds of wet method and dry method, and wet processing process claims water quenching technology again.Its main treatment process has: method, Yin Bafa, Lhasa method etc. are considered in the end.Its shortcoming is that the water yield that consumes is big, produces H
2S, SO
xDeng the obnoxious flavour contaminate environment.Dry process technology mainly comprises wind quench method technology, two cooling rotating cylinder pelletizing technology, mechanical granulation method technology etc.These class methods require rational structure formation and the rational size of controlling cooling conditions and mechanism in the granulation of blast furnace slag and the recovery technology of heat energy.This kind method has fundamentally changed the granulated processed of blast furnace slag and traditional treatment process of heat exchange; it also is an emphasis innovation to the ironmaking production technology; can significantly improve social benefit, economic benefit and environmental benefit, and have very vast market prospect.
Summary of the invention
The utility model provides a kind of rotary type gas-solid heat-exchanger rig that utilizes afterheat of slags, described heat-exchanger rig utilizes its waste heat to carry out rotary type gas-solid heat exchange at the high temperature furnace slag particle, adopt technical scheme described in the utility model can avoid a large amount of waste water of water quenching generation and the obnoxious flavour of generation contaminate environment, the abundant contact heat-exchanging of blast furnace slag particle and air can improve the heat transfer rate of blast furnace slag greatly, takes full advantage of the huge energy that it includes.
For reaching above-mentioned technical purpose, the utility model is achieved by the following technical solutions:
Utilize the rotary type gas-solid heat-exchanger rig of afterheat of slags, it comprises rotatable heat exchange cylindrical shell, rotation control motor and cooling blower, be provided with the helical orbit that screw-blade is formed in the described heat exchange cylindrical shell, described heat exchange cylindrical shell central axis is provided with secondary material and throws the device that looses, described interchanger cylindrical shell front and back end is respectively equipped with forward end seal parts and back-end sealing parts, described heat exchange barrel front end also is provided with opening for feed and air outlet, described heat exchange cylinder back-end also is provided with discharge port and blast inlet, and heat exchange cylindrical shell intake stack place is provided with the spiral wind producer that is connected with cooling blower;
Described heat-exchanger rig also is provided with controller and rotating speed frequency transformer, described air outlet place is provided with the air-out detector, described discharge port place is provided with the discharging detector, described blast inlet place is provided with pressure transmitter, and described air-out detector, discharging detector, pressure transmitter, rotating speed frequency transformer all are connected with controller.
To further improvement in the technical proposal: the intake stack of the wind pipe of described cooling blower and heat exchange cylindrical shell is in vertical distribution.
To further improvement in the technical proposal: described heat exchange cylindrical shell is horizontal by 0-10 degree inclination angle.
To further improvement in the technical proposal: described spiral wind producer comprises that the 6-8 sheet along the circumferential direction is dihedral vane and central shaft that equal angles distributes, and dihedral vane is fixed on the central shaft.
To further improvement in the technical proposal: described screw-blade is fixed by the screw-blade fixed support, described secondary material is thrown the device that looses and is connected with the screw-blade support by support, is provided with groove in the described heat exchange cylindrical shell and is used for the fixedly screw-blade fixed support of rotating cylinder internal screw track.
To further improvement in the technical proposal: described opening for feed, discharge port, blast inlet, air outlet and cooling blower are equipped with electric solenoid valve,
To further improvement in the technical proposal: described air-out detector and discharging detector are the thermocouple detector of real-time detected temperatures.
Compared with prior art, advantage of the present utility model and positively effect are:
1, the utility model is by after the thermocouple detector detected temperatures, pass to controller signals and control the unlatching of magnetic valve in real time, import and export slag charge speed with temperature and slag charge after the heat exchange of the temperature after the heat exchange of control cold wind, slag charge, better control air output and the air output of revolution interchanger hot blast outlet and the input and output material amount of slag charge of cooling blower, the heat exchange of fully carrying out that reaches slag charge and cold wind also can maximum conserve energy cost.
2, set up a pressure transmitter in the cooling air import of rotary type gas-solid interchanger, to detect the blast of cooling blower import, controller sent rotating speed and the start and stop of instruction control cooling blower operation when it reached certain value.
3, described rotary type gas-solid interchanger rotates and adopts variable frequency control, controls the rotating speed of rotary kiln, thereby adjusts heat exchange material residence time in tube, controls the contact heat-exchanging time with freezing air, increases the heat exchange effect.Cooling blower also adopts variable frequency control, and the signal of thermopair passes to controller, and controller is controlled the rotating speed of cooling blower with real-time control air output through processing controls rotating speed frequency transformer.
4, the utility model is established the rotating cylinder formula heat-exchanger rig of helical orbit at the characteristic of blast furnace slag particle and gas in the employing, utilizes the Collaborative Control of controller and whole detecting instrument, realizes heat exchange efficiently, to greatest extent the save energy cost.
5, heat transferring medium described in the utility model carries out heat exchange in helical orbit, slag granules makes particle be in discrete state under the interaction of device is loose in the throwing of the blade shape secondary material of the centrifugal force of track blade rubbing power and solid of revolution and particular design always, fully contacts with cooling air and carries out heat exchange.
6, cooling air of the present utility model is made spiral wind through the spiral wind producer, in helical orbit, advance, because the helical orbit that arranges in the rotating cylinder, no matter rotating cylinder how long, cooling air always advances with spiral form slag granules is blowed in the air, become discrete state, increase the heat exchange chance of particle.Avoided the front end material of common rotary kiln many, the situation that the rear end material is few.
7, the utility model does not produce other the side effect such as gas of contaminate environment, has the feature of environmental protection, solves the obnoxious flavour that existing blast furnace slag heat exchange water loss produces contaminate environment greatly and easily, the problem of weak effect.
After reading embodiment of the present utility model by reference to the accompanying drawings, other characteristics of the present utility model and advantage will become clearer.
Description of drawings
Fig. 1 is the main TV structure synoptic diagram of the utility model rotary type heat-exchanger rig.
Fig. 2 is the cross-sectional structure synoptic diagram of the utility model rotary type heat-exchanger rig.
Fig. 3 is the plan structure synoptic diagram of the utility model rotary type heat-exchanger rig.
Fig. 4 is the right TV structure synoptic diagram of the utility model rotary type heat-exchanger rig.
Wherein: 1, air outlet; 2, opening for feed; 3, forward end seal parts support; 4, screw-blade fixed support; 5, screw-blade; 6, rotation control motor; 7, cylinder stent; 8, rotation guide wheel; 9, rotation guide wheel bearing; 10, discharge port; 11, spiral wind producer cover; 12, blast inlet; 13, back-end sealing part stent; 14, heat exchanger tube body sealing ring; 15, heat exchange cylindrical shell rotation backing ring; 16, heat exchange cylindrical shell swing pinion; 17, heat exchange cylindrical shell; 18, heat exchange cylindrical shell rotation duct ring; 19, bracket fixing bolt; 20, sealing-ring compresses disk; 21, magnetic valve; 22, screw-blade standing bolt; 23 secondary materials are thrown the device fixed support that looses; 23, secondary material is thrown the device that looses; 25, cooling air duct; 26, cooling blower blade; 27, cooling blower; 28, cooling blower support; 29, catheter interface; 30, spiral wind producer.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment is clearer, below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described.
Embodiment 1
Shown in Fig. 1-4, the described rotary type heat-exchanger rig of present embodiment is to utilize high temperature blast furnace slag particle and gas to carry out heat exchange, described rotary type heat-exchanger rig comprises the heat exchange cylindrical shell 17 by cylinder stent 7 fixed supports, the rotation control motor 6 and the cooling blower 27 that are used for the rotation of control heat exchange cylindrical shell, be provided with helical orbit and the screw-blade fixed support 4 formed by screw-blade 5 in the described heat exchange cylindrical shell 17, be provided with four grooves in the described heat exchange cylindrical shell 17 and be used for fixedly screw-blade fixed support 4, be welded with screw-blade 5 on the screw-blade fixed support 4 for operation scheme and the direction of control heat exchange material, screw-blade fixed support 4 and heat exchange cylindrical shell 17 are provided with bolt hole, and every three have 12 holes with the fixedly screw-blade 5 of screw-blade standing bolt 22 of screwing on.
The pass of the radius R of described helical orbit and pitch B is 0.45B
R
0.65B the speed range of rotating cylinder is 4-4.5r/min.The helical orbit of described special setting radially throw to loose solid particulate to contact with spiral air and carries out heat and mass and react in helical orbit, and in rotating cylinder the residence time the longest, thereby carry out sufficient heat exchange.
Described heat exchange cylindrical shell central axis also is provided with the diffusing device 24 of secondary material throwing, and described secondary material is thrown the device that looses and is connected with screw-blade fixed support 4 by its fixed support 23, and the radius R of the screw-blade of the diffusing device of secondary material throwing and the pass of pitch B are 0.1B
R
0.25B, the particle of cylindrical shell center can be thrown to cylinder inboard wall, make the material at inwall place and the material of center be in the dynamic exchange state.The utility model is according to kinematics and the dynamic analysis of solid particulate at helical orbit, and the helical orbit of design and secondary material are thrown the device that looses makes slag granules be in the diffusing state of throwing always, carries out the heat and mass reaction thereby slag granules and spiral wind are directly contacted.
Described heat exchange cylindrical shell is provided with the scope at 0-10 degree inclination angle.
Described heat exchange cylindrical shell 17 front ends are provided with forward end seal parts and forward end seal parts support 3, described forward end seal parts comprise the heat exchanger tube body sealing ring 14 that is tightly connected with 3 realizations of forward end seal parts support, sealing-ring compresses disk 20 and bracket fixing bolt 19, described heat exchange cylindrical shell 17 rear ends are provided with back-end sealing parts and back-end sealing part stent 13, described back-end sealing parts comprise the heat exchanger tube body sealing ring 14 that is tightly connected with 13 realizations of back-end sealing part stent, sealing-ring compresses disk 20 and bracket fixing bolt 19, and described forward end seal parts are identical with the back-end sealing parts.
Described heat exchange cylindrical shell 17 front ends are provided with heat exchange cylindrical shell rotation duct ring 18, and the rear end is provided with heat exchange cylindrical shell rotation backing ring 15, and described heat exchange cylindrical shell 17 middle parts are provided with and rotate heat exchange cylindrical shell rotation backing ring 15 and the heat exchange cylindrical shell swing pinion 16 that control motor 6 is meshed.Heat exchange cylindrical shell rotation backing ring 15 and heat exchange cylindrical shell swing pinion 16 are controlled the rotation that motor 6 is meshed to control heat exchange cylindrical shell 17 with rotation.
The external spiral wind producer 30 that is provided with of described heat exchanger tube, the spiral wind producer is by the dihedral vane of 6-8 sheet equal angles distribution along the circumferential direction, dihedral vane is fixed on the central shaft, pressure effect lower blade and axle at wind together rotate, and form spiral wind and be blown in the heat exchange cylindrical shell in the rotation process of blade.The spiral producer need not to provide and adds motivating force, thereby the cooling air that relies on cooling blower blows the spiral wind producer and rotates the formation spiral wind, and advance in the helical orbit in cylindrical shell, avoid occurring because the long spiral wind that makes formation of heat exchange cylindrical shell becomes the situation of laminar winds a long way off.
Described heat exchange cylindrical shell 17 front ends are provided with opening for feed 2 and air outlet 1, described heat exchange cylindrical shell 17 rear ends are provided with discharge port 10 and blast inlet 12, described rotary type gas-solid interchanger also is provided with controller and rotating speed frequency transformer, be provided with thermocouple detector as the discharging detector at described discharge port place, with the temperature of the slag granules after the real-time detection heat exchange, in order to control the open and close of heat exchange material discharge port magnetic valve.Be provided with thermocouple detector as the air-out detector at described air outlet place, in order to the temperature of real-time detection air-out.Described blast inlet place is provided with pressure transmitter to detect blast, and described air-out detector, discharging detector, pressure transmitter and rotating speed frequency transformer all are connected with controller.Described opening for feed, discharge port, blast inlet, air outlet and cooling blower are equipped with electric solenoid valve 21 in order to control its opening and closing.
The desired temperature of the pressure set points of the desired temperature of input control program and air outlet, blast inlet and discharge port in controller, described pressure transmitter and thermocouple detector are sent to controller with real-time processing with detected pressure, temperature signal, control the open and close of each import and export and the rotating speed of cooling blower, realize the heat exchange of blast furnace slag particle and control heat exchange effect.
Described blast inlet 12 links to each other by spiral wind producer cover 11 with spiral wind producer 30, and catheter interface 29 links to each other spiral wind producer cover 11 with cooling air duct 25, and cooling blower support 28 is supporting cooling blower 27 and cold blast engine blade 26.
Utilize the concrete working process of heat-exchange method of described rotary type heat-exchanger rig as follows:
In heat transfer process, the blast furnace slag particle enters heat exchange cylindrical shell 17 by the opening for feed 2 of forward end seal parts support 3, screw-blade 5 by helical orbit rotates the promotion slag granules radially and axial motion, simultaneously secondary material is thrown the device 24 of loosing particle is thrown to cylinder inboard wall, make the particle at cylindrical shell center and inwall place be in dynamic swap status, thereby particle is in discrete state.Simultaneously, the cooling air that cooling blower 27 pressurizations produce forms spiral wind by spiral wind producer 30, described spiral wind along the barrel tangential direction enter in the heat exchange cylindrical shell and along barrel in the shape of a spiral mode advance, the direction opposite with the direction of motion of blast furnace slag particle pushed ahead, blast furnace slag particle and spiral wind are met, the blast furnace slag particle is dispelled under the spiral wind action, has reached the effect of heat exchange.
The size of the rotating speed by regulating heat exchange cylindrical shell 17 and the air output of cooling blower 27 reaches better heat exchange to improve heat exchange efficiency.It is 450 ℃ that air outlet 1 temperature reaches set(ting)value, sends signal to controller when the thermocouple detector of air outlet 1 detects temperature and reaches set(ting)value, and controller sends the hot blast after magnetic valve that instruction makes air outlet 1 opens to discharge heat exchange.Blast inlet 12 places are provided with pressure transmitter, and its pressure set points is 40-50MPa.When pressure transmitter detects pressure and reaches set(ting)value signal is passed to controller, controller sends the rotating speed of instruction control cooling blower 27 with the control air output, has arrived the raising heat exchange efficiency, reduces the purpose of cost.The desired temperature of discharge port 10 is 20 ℃, and the temperature that the thermopair of heat exchange material outlet 10 detects the heat exchange material reaches this desired temperature and just opens magnetic valve to discharge the blast furnace slag particle after the heat exchange.
Each thermopair and detection signal are transferred to controller, focused on by it, and each rotating speed of motor frequency transformer and magnetic valve are sent instruction.Make each row parts and proofing unit realize Collaborative Control.Low unstable when high during with reply centrifugal granulation device tapping temperature.As when slag temperature increases, controller detects the too high signal of slag temperature and analyzing and processing, sends instruction simultaneously: if slag temperature increases 8-15 ℃, controlled refrigeration is the rotating speed frequency transformer of blower fan but, the rotating speed that increases improves corresponding air output, to control hot blast temperature in 440 ℃ of-450 ℃ of scopes; If the slag temperature increases 15-28 ℃, can increase scope and the raising production capacity of rotating speed to guarantee air outlet temperature of air output and rotating cylinder simultaneously; If increase more than 28 ℃, the rotating speed that can increase the rotating speed of air output, rotating cylinder simultaneously and reduce feed appliance reduces the feeding amount guaranteeing hot blast temperature, to guarantee that tapping temperature is 20-35 ℃ when improving production capacity, thereby afterheat of slags is reclaimed fully.Conserve energy cost to greatest extent.
By the control to rotating speed, air quantity and the slag flow of rotating cylinder, the setting of heat exchanging medium out temperature, pressure parameter and the reasonable control of opening making time, for the heat transferring medium in the rotating cylinder provides best heat transfer boundary condition, to reach hot blast top temperature and slag granules minimum temperature after the heat exchange, improve heat exchange efficiency.The utility model can better be controlled air output and the air output of revolution interchanger hot blast outlet and the input and output material amount of slag charge of cooling blower, increases the contact area of heat transferring medium to greatest extent, improves heat-exchange time, farthest the conserve energy cost.Solved the obnoxious flavour that existing blast furnace slag heat exchange water loss produces contaminate environment greatly and easily, the problem of the wasting of resources, cost height, weak effect.
The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment does, still belongs to the protection domain of technical solutions of the utility model according to technical spirit of the present utility model.
Claims (7)
1. utilize the rotary type gas-solid heat-exchanger rig of afterheat of slags, it is characterized in that: it comprises rotatable heat exchange cylindrical shell, rotation control motor and cooling blower, be provided with the helical orbit that screw-blade is formed in the described heat exchange cylindrical shell, described heat exchange cylindrical shell central axis is provided with secondary material and throws the device that looses, described interchanger cylindrical shell front and back end is respectively equipped with forward end seal parts and back-end sealing parts, described heat exchange barrel front end also is provided with opening for feed and air outlet, described heat exchange cylinder back-end also is provided with discharge port and blast inlet, and heat exchange cylindrical shell intake stack place is provided with the spiral wind producer that is connected with cooling blower;
Described heat-exchanger rig also is provided with controller and rotating speed frequency transformer, described air outlet place is provided with the air-out detector, described discharge port place is provided with the discharging detector, described blast inlet place is provided with pressure transmitter, and described air-out detector, discharging detector, pressure transmitter, rotating speed frequency transformer all are connected with controller.
2. the rotary type gas-solid heat-exchanger rig that utilizes afterheat of slags according to claim 1, it is characterized in that: the intake stack of the wind pipe of described cooling blower and heat exchange cylindrical shell is in vertical distribution.
3. the rotary type gas-solid heat-exchanger rig that utilizes afterheat of slags according to claim 2, it is characterized in that: described heat exchange cylindrical shell is horizontal by 0-10 degree inclination angle.
4. the rotary type gas-solid heat-exchanger rig that utilizes afterheat of slags according to claim 3 is characterized in that: described spiral wind producer comprises that the 6-8 sheet along the circumferential direction is dihedral vane and central shaft that equal angles distributes, and dihedral vane is fixed on the central shaft.
5. the rotary type gas-solid heat-exchanger rig that utilizes afterheat of slags according to claim 1, it is characterized in that: described screw-blade is fixed by the screw-blade fixed support, described secondary material is thrown the device that looses and is connected with the screw-blade support by support, is provided with groove in the described heat exchange cylindrical shell and is used for the fixedly screw-blade fixed support of rotating cylinder internal screw track.
6. the rotary type gas-solid heat-exchanger rig that utilizes afterheat of slags according to claim 1, it is characterized in that: described opening for feed, discharge port, blast inlet, air outlet and cooling blower are equipped with electric solenoid valve.
7. the rotary type gas-solid heat-exchanger rig that utilizes afterheat of slags according to claim 1, it is characterized in that: described air-out detector and discharging detector are the thermocouple detector of real-time detected temperatures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201729397U CN203174121U (en) | 2013-04-09 | 2013-04-09 | Rotary gas-solid heat exchange device capable of utilizing waste head of furnace slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201729397U CN203174121U (en) | 2013-04-09 | 2013-04-09 | Rotary gas-solid heat exchange device capable of utilizing waste head of furnace slag |
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| Publication Number | Publication Date |
|---|---|
| CN203174121U true CN203174121U (en) | 2013-09-04 |
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ID=49070852
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201729397U Withdrawn - After Issue CN203174121U (en) | 2013-04-09 | 2013-04-09 | Rotary gas-solid heat exchange device capable of utilizing waste head of furnace slag |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194552A (en) * | 2013-04-09 | 2013-07-10 | 青岛理工大学 | Rotary gas-solid heat exchange device utilizing waste slag heat and heat exchange method |
| CN108277311A (en) * | 2018-04-21 | 2018-07-13 | 唐山金沙燃烧热能股份有限公司 | A kind of blast furnace slag air quenching microballon waste-heat recovery device |
| CN108929925A (en) * | 2018-10-09 | 2018-12-04 | 青岛特殊钢铁有限公司 | A kind of high-temperature liquid state Blast furnace slag waste heat recovery device and its exhaust heat recovering method |
-
2013
- 2013-04-09 CN CN2013201729397U patent/CN203174121U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103194552A (en) * | 2013-04-09 | 2013-07-10 | 青岛理工大学 | Rotary gas-solid heat exchange device utilizing waste slag heat and heat exchange method |
| CN108277311A (en) * | 2018-04-21 | 2018-07-13 | 唐山金沙燃烧热能股份有限公司 | A kind of blast furnace slag air quenching microballon waste-heat recovery device |
| CN108929925A (en) * | 2018-10-09 | 2018-12-04 | 青岛特殊钢铁有限公司 | A kind of high-temperature liquid state Blast furnace slag waste heat recovery device and its exhaust heat recovering method |
| CN108929925B (en) * | 2018-10-09 | 2020-04-21 | 青岛特殊钢铁有限公司 | High-temperature liquid blast furnace slag waste heat recovery device and waste heat recovery method thereof |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20130904 Effective date of abandoning: 20150617 |
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