CN105112575A - A method and system for heat recovery from high-temperature slag - Google Patents
A method and system for heat recovery from high-temperature slag Download PDFInfo
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- CN105112575A CN105112575A CN201510163227.2A CN201510163227A CN105112575A CN 105112575 A CN105112575 A CN 105112575A CN 201510163227 A CN201510163227 A CN 201510163227A CN 105112575 A CN105112575 A CN 105112575A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
- C21B3/08—Cooling slag
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D11/00—Heat-exchange apparatus employing moving conduits
- F28D11/02—Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
- F28D7/103—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of more than two coaxial conduits or modules of more than two coaxial conduits
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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
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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
- C21B2400/08—Treatment of slags originating from iron or steel processes with energy recovery
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0056—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for ovens or furnaces
- F28D2021/0057—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for ovens or furnaces for melting materials
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
Abstract
The present invention provides a method and system for heat recovery from high-temperature slag. A host heat exchanger of the apparatus is a horizontal type cylindric device comprising at least two cylinders with different diameters. The cylinders are installed with one center together and rotate around an axis. The slag accesses a first cylinder from an inlet and then accesses a second cylinder in a direction opposite to the first cylinder, until the slag discharges from an outlet. And at the same time, preheat wind flows in a same path and an opposite direction to perform heat exchange. The apparatus also comprises a sealed tipping device, a sealed crushing plant, a high temperature granulator, a non-crushing materials store room, a promotion and buffering stock bin device and a closed type heat exchange system. The method and system for heat recovery from high-temperature slag may recovery high temperature slag heat energy directly discharged in an industrial site, and is applicable to the process of solid slag and liquid slag so as to reduce harmful gases such as SO2, H2S and the like generated by directly discharging of high temperature slag, and avoid a lot of waste of water source.
Description
Technical field
The present invention relates to the Exposure degree technology of high-temperature slag of iron and steel, the discharge of coloured and chemical industry, under enclosed system, particularly realize the device and method of high-temperature slag Exposure degree.
Background technology
At present, the mode of high-temperature slag Exposure degree is a lot, has wind to quench granulated slag Exposure degree technique, rotary drum dross sensible heat recovery process, slag Exposure degree technique etc.Wind quench granulated slag Exposure degree technique be molten slag by high-pressure blast quench broken after, enter waste heat recovery room and collect radiant heat, but this technique is only suitable for the good molten slag of process mobility, and heat-exchange periodic is longer; Slag injects between two rotary drums by rotary drum dross sensible heat recovery process, air is passed in rotary drum, slag forms the thin slag sheet of one deck and adheres on rotary drum under the extruding of two rotary drums, and thin slag sheet cools rapidly on the surface of rotary drum, and heat is taken away by the fluidizing air in rotary drum.But the main drawback of this method is the thin slag sheet be bonded on rotary drum must be smash down with rake, and heat recovery rate and the life-span of equipment are lower; Slag Exposure degree technique utilizes radiation heat transfer and dynamic heat exchange mode in the dynamic process of slag surface continuous renewal, Exposure degree in slag is passed to water medium, produce superheated vapour, but because the viscosity pole of liquid steel slag is uneven, quantitative for liquid steel slag cannot be carried out heat exchange with water by equipment, thus cannot ensure the stability of heat exchange.And slag temperature after heat exchange is higher, need secondary heat exchange.
Summary of the invention
First part of the present invention is high-temperature slag heat recovering device, and the main heat exchanger of this device is a horizontal cylindrical device, and the cylindrical drum comprising at least two different diameters is installed together with one heart and can around middle shaft rotation; One end of first cylindrical drum arranges slag entrance; One end of second cylindrical drum arranges slag exit; Also comprise the passage that a slag moves between the inlet, slag enters the first cylindrical drum from entrance and enters the second cylindrical drum with the direction contrary in the first cylindrical drum with it again, until discharge from outlet.
Further, main heat exchanger also comprises and the first cylindrical drum and the coaxial mounted three cylinders cylinder of the second cylindrical drum, and slag moves until discharge from exporting with the direction contrary in the second cylindrical drum with it through three cylinders cylinder.
This device comprises closed tipple, closed shredder assembly, high temperature pelletizer, non-broken material storehouse, lifting and buffer bin device, main heat exchanger, closed type heat-exchange system.
The present invention also comprises the method for high-temperature slag Exposure degree, pours in the Sheng slag device of closed tipple by the high-temperature slag of 1100 DEG C ~ 1600 DEG C by driving or other device, and the removable cover plate of closed tipple is closed; Containing slag device is poured onto in closed shredder assembly with certain speed by high-temperature slag, and high-temperature slag is broken in closed shredder assembly, and the broken thing of slag falls into high temperature pelletizer, and non-broken thing falls into non-broken material storehouse; The broken thing of slag falling into high temperature pelletizer is granulated, and the broken thing of slag and normal temperature wind carry out a heat exchange simultaneously, form pre-hot blast; Slag granulating thing sends into buffer bin device by chapelet; Slag granulating thing sends into the feeding unit of main heat exchanger by the feeding machine of buffer bin device, and enters in cylinder interchanger through arc chute; Slag granulating thing rolls and advances and carry out secondary heat exchange with pre-hot blast in cylinder interchanger; Low temperature slag granulating thing after heat exchange enters drawing mechanism, and is discharged by feeding machine; High warm air in cylinder interchanger after secondary heat exchange to be drawn by airduct by high-temperature blower and is detected wind-warm syndrome, and wind-warm syndrome high warm air up to standard sends into waste heat utilization equipment, and wind-warm syndrome high warm air return roller interchanger not up to standard carries out heat exchange again.Above-mentioned steps is carried out continuously, high-temperature slag granulate enters main heat exchanger by buffer bin device continuous print, is discharged in main heat exchanger with the heat exchange of pre-hot blast continuous print.Therefore this high-temperature slag heat recovering device can the high warm air of output 300 DEG C ~ 450 DEG C of continous-stable.
The invention has the beneficial effects as follows iron and steel, high-temperature slag that is coloured and chemical industry discharge is granulated in Sealing Arrangement and by its Exposure degree, it both can process solid slag, also can process molten slag.In addition, this device does not consume water resources, does not produce dust and obnoxious flavour, energy-conserving and environment-protective, is metallurgical and the utilization of chemical industry high-temperature slag Exposure degree, energy-saving and cost-reducing better equipment and method.
Accompanying drawing explanation
Fig. 1 is the front view of high-temperature slag heat recovering device.
Fig. 2 is the front view of closed tipple.
Fig. 3 is the front view of closed shredder assembly.
Fig. 4 is the sectional view of closed shredder assembly.
Fig. 5 is the sectional view of high temperature pelletizer.
Fig. 6 is the front view of lifting and buffer bin device.
Fig. 7 is the front view of main heat exchanger.
Fig. 8 is the sectional view of cylinder interchanger.
Fig. 9 is the left view of main heat exchanger.
The removable cover plate 1-2 of 1 closed tipple 1-1 contains slag device 1-3 casing 1-4 slag exit
2 closed shredder assembly 2-1 move Hubei Province plate 2-2 and determine Hubei Province plate 2-3 excentric shaft 2-4 rigidity grid section
The non-broken thing outlet of 2-5 locking latches 2-6 slag entrance 2-7 slag broken thing outlet 2-8
3 high temperature pelletizer 3-1 transmission shaft 3-2 rotate choked flow blade 3-3 ring-type flow deflector 3-4 electrically operated valve
3-5 slag entrance 3-6 normal temperature wind entrance 3-7 slag granulating thing outlet 3-8 motor unit
4 non-broken material storehouses
5 promote and the high temperature resistant buffer bin of buffer bin device 5-1 chapelet 5-2 hot-wind inlet cover 5-3
5-4 reciprocating feeder or the outlet of oscillating feeder 5-5 slag granulating thing entrance 5-6 slag granulating thing
6 main heat exchanger 6-1 feeding unit 6-2 cylinder interchanger 6-3 drawing mechanisms
The slag exit of the slag entrance 6-6 feeding unit of 6-4 reciprocating feeder or oscillating feeder 6-5 feeding unit
6-7 high warm air outlet 6-8 first cylindrical drum 6-9 second cylindrical drum 6-10 three cylinders cylinder 6-11 slag entrance
The pre-hot-wind inlet of 6-12 low temperature slag outlet 6-13 low temperature slag entrance 6-14 low temperature slag outlet 6-15
7 closed type heat-exchange system 7-1 airduct 17-2 airduct 27-3 airduct 37-4 airducts 4
The pre-hot-blast outlet of 7-5 electrically operated valve 17-6 electrically operated valve 27-7 electrically operated valve 37-8 high-temperature blower 7-9.
Embodiment
Accompanying drawing provides a kind of structural representation of high-temperature slag heat recovering device 100, and this device comprises closed tipple 1, closed shredder assembly 2, high temperature pelletizer 3, non-broken material storehouse 4, promotes and buffer bin device 5, main heat exchanger 6 and closed type heat-exchange system 7.
Closed type heat-exchange system 7 ensures that wind moves in circles within system 100.Closed type heat-exchange system 7 comprises airduct 7-1,7-27-3 and 7-4, electrically operated valve 7-5,7-6,7-7 and high-temperature blower 7-8, and this system also comprises temperature sensor (not drawing in the drawings).
Fig. 2-6 gives the schematic diagram of the treating processes of high-temperature slag before entering main heat exchanger.
The high-temperature slag of 1100 DEG C ~ 1600 DEG C is introduced in closed tipple 1 by driving or other device, the top of closed tipple 1 is provided with the moveable cover plate 1-1 driven by hydro-cylinder or electric push rod (not shown in FIG.), bottom is provided with slag and topples over outlet 1-4, for slag being poured in closed shredder assembly 2, middle part is provided with by oil motor or motor-driven tipping Sheng slag device 1-3, for holding and toppling over high-temperature slag.High-temperature slag is periodically mixed and discharge.
Described closed shredder assembly 2, be that a box slag is separated shredder assembly, comprise casing 2-9, be provided with slag on its top and topple over entrance 2-6, bottom is provided with slag broken thing outlet 2-7 and the non-broken thing outlet 2-8 of slag, and middle part is provided with determines Hubei Province plate 2-2, rigidity grid section 2-4 and dynamic Hubei Province plate 2-1, dynamic Hubei Province plate is driven by oil motor or motor, around excentric shaft motion, and determine Hubei Province plate interaction, for crash high temperature slag.
Determine Hubei Province plate 2-2 with locking latches, locking latches is driven by hydro-cylinder or electric push rod, and when determining Hubei Province plate advance and putting in place, locking pin stretches out, and makes to determine Hubei Province plate locking; When determining Hubei Province plate and retreating, locking pin is regained, and makes to determine Hubei Province plate and unlocks.When determining Hubei Province plate and being in lockup state, the broken thing of slag is discharged along 2-7 outlet, as shown in Figure 3, retreat when determining plate level direction, Hubei Province, when being in released state, non-broken thing glides along rigidity grid section, and non-broken thing is discharged closed shredder assembly by the second outlet 2-8.
Described non-broken material storehouse 4, be a box high temperature resistant feed bin, its top end opening, is provided with suspension hook, is positioned over steel structure or concrete platform.
Described closed shredder assembly 2 also comprises pre-hot-blast outlet 7-9, and accept the pre-hot blast come from high temperature pelletizer 3, pre-hot-blast outlet 7-9 is positioned at closed shredder assembly side.
The broken thing of slag enters high temperature pelletizer 3 by outlet 2-7, as shown in Figure 5.Described high temperature pelletizer 3 is a vertical cylinder shape device, and cylinder inwall is provided with many group ring-type flow deflector 3-3, middle part is provided with transmission shaft 3-1, transmission shaft is provided with many groups and rotates choked flow blade 3-2.
Rotate choked flow blade 3-2 effectively can slow down slag falling velocity when equipment work.Slag can intersperse among on choked flow blade when equipment work by ring-type flow deflector 3-3 uniformly, avoids slag directly to fall along barrel.
The broken thing of slag enters high temperature pelletizer 3 by high temperature pelletizer top inlet 3-5.During work, transmission shaft 3-1 is driven by the oil motor or motor 3-8 being positioned at high temperature pelletizer bottom and is rotated, and with rotation choked flow blade 3-2 acting in conjunction, can realize the granulation of the broken thing of high-temperature slag.Slag after being granulated is discharged by the outlet 3-7 of high temperature pelletizer bottom.
High temperature pelletizer 3 bottom is provided with normal temperature wind entrance 3-6, is controlled by valve 3-4.Slag from the process that high temperature pelletizer falls from top to bottom, carries out first time heat exchange with normal temperature wind from bottom to top, forms pre-hot blast.Pre-hot blast is discharged by slag entrance 3-5, enters closed shredder assembly 2, enters airduct 7-1 via pre-hot-blast outlet 7-9.
High-temperature slag granulate is admitted to lifting and buffer bin device 5 via outlet 3-7, as shown in Figure 6.Slag granulating thing sends into high temperature resistant buffer bin device 5-3 by chapelet 5-1.High temperature resistant buffer bin 5-3 upper end is provided with high-temperature slag granulate entrance 5-5, and bottom is provided with outlet 5-6, and slag granulating thing is moved between the inlet by reciprocating feeder or oscillating feeder 5-4.
Chapelet 5-1 is provided with one group of normal temperature wind admission port 5-2, in order to balance the air pressure in closed system.
The structure of reciprocating feeder or oscillating feeder 5-4 and reciprocating feeder traditional in market or oscillating feeder substantially identical.
Slag granulating thing sends into the feeding unit 6-1 of main heat exchanger by the feeding machine of buffer bin device 5-3.
Accompanying drawing 7-9 gives the structural representation of main heat exchanger 6.Described main heat exchanger 6, is made up of feeding unit 6-1, cylinder interchanger 6-2, drawing mechanism 6-3 and reciprocating feeder or oscillating feeder 6-4.
Feeding unit 6-1 is a horizontal cylindrical device, is provided with high-temperature slag granulate entrance 6-5 on its top, and one end of cylinder is provided with high-temperature slag granulate outlet 6-6, and the other end is provided with high warm air outlet 6-7.Cylinder interchanger 6-2 is a horizontal cylindrical device; this device is by the cylindrical drum 6-8 of three different diameters; 6-9; concentric being installed together of 6-10; its one end is provided with high-temperature slag granulate entrance 6-11; the other end is provided with low temperature slag outlet 6-12, and this interchanger, under the driving of group of motors (not marking in figure), does turning motion around cylinder center.Moreover, the inwall of arbitrary cylindrical drum of main heat exchanger establishes drainage plate and cylindrical drum has tapering moves in passage to guide slag, and the direction of the tapering of the cylindrical drum of main heat exchanger is that the direction of moving along slag attenuates.
First cylindrical drum 6-8 i.e. innermost circle column casing, have at least a part to be comprised by the second cylindrical drum 6-9 and three cylinders cylinder 6-10.The one end be connected with slag entrance at the first cylindrical drum 6-8 is opening, and its diameter is larger than slag entrance 6-11, with the outer wall compact siro spinning technology of this and cylinder interchanger 6-2.
In one end that the first cylindrical drum 6-8 is connected with slag entrance, it protrudes from the second cylindrical drum 6-9.The other end of the first cylindrical drum 6-8 is also opening, and it is comprised completely by the second cylindrical drum 6-9.
Second cylindrical drum 6-9 is comprised completely by three cylinders cylinder 6-10.First the one end entering the second cylindrical drum at slag is airtight, and this distal process is for the first cylindrical drum, but does not touch with three cylinders socket joint, and the other end opening of the second cylindrical drum also connects three cylinders cylinder.
The shell of three cylinders cylinder 6-10 forms the shell of cylinder interchanger 6-2, and the inwall of three cylinders cylinder 6-10 is connected by slag exit 6-12 with cylinder interchanger 6-2.
Drawing mechanism 6-3 is a horizontal cylindrical device, and one end of cylinder is provided with low temperature slag entrance 6-13, and top is provided with pre-hot-wind inlet 6-15, and bottom is provided with low temperature slag outlet 6-14.
Slag granulating thing sends into the feeding unit 6-1 of main heat exchanger by the feeding machine 5-4 of buffer bin device, and enters in cylinder interchanger 6-2 through arc chute (not marking in figure); Meanwhile, valve 7-5 opens, and pre-hot blast enters drawing mechanism 6-3 by airduct 7-1,7-15.
Slag in cylinder interchanger movement path as shown in arrow 6-16.High-temperature slag enters the first cylindrical drum 6-8 of cylinder heat-transmission device after fragmentation and granulation by entrance 6-11; in rotary course; under the effect of drainage plate and tapering; slag rolls and advances and enter the gap of the second cylindrical drum and the first cylindrical drum on set direction; and enter into three cylinders cylinder by the second cylindrical drum open at one end, finally enter drawing mechanism.Meanwhile, pre-hot blast enters cylinder interchanger 6-2 from slag exit 6-12, and according to the path contrary with slag direction of motion flowing, carry out abundant heat exchange, slag cools, and pre-hot blast is heated.
The slag of cooling enters drawing mechanism 6-3, and in drawing mechanism, inside is provided with arc chute, the low temperature slag of its entrance can be imported in reciprocating feeder or oscillating feeder 6-4 and to be discharged.
High warm air, by exporting 6-7 and airduct 7-2 is drawn, enters high-temperature blower 7-8 by 7-2, and is finally discharged by airduct 7-4.Hygrosensor (not shown in FIG.) is in airduct 7-4 place monitoring wind-warm syndrome.
High-temperature blower 7-8 and electrically operated valve 7-5,7-6,7-7 are used for the pressure in control device 100.Need in main heat exchanger, keep negative pressure constantly to take high warm air away by desired paths.
In high temperature pelletizer, same needs keeps negative pressure from below to up to make normal temperature wind be heated and take away from bottom to top.
When wind-warm syndrome reaches desirable value, electrically operated valve 7-7 opens, and 7-6 closes, and high warm air sends into waste heat utilization equipment, and when wind-warm syndrome is not up to standard, electrically operated valve 7-7 closes, and 7-6 opens, and high warm air carries out heat exchange again by airduct 7-3 and 7-1 return roller interchanger.Wind-warm syndrome standard can adjust according to practical situation, and in a specific embodiment, described high temperature air temperature is 300 DEG C ~ 450 DEG C.
There is place, following a few place can use asbestos in high-temperature slag heat recovering device 100 or other lagging materials carry out heat insulation: the outer wall of closed tipper 1 and/or closed shredder assembly 2 and/or high temperature resistant buffer bin 5-3 and/or airduct 7-1,7-2,7-3,7-4.
There is place, following a few place can use forced water cooling system in high-temperature slag heat recovering device 100 and carry out process of lowering the temperature: dynamic Hubei Province plate 2-1 of closed shredder assembly and/or the bearing determined in the transmission shaft of Hubei Province plate 2-2 and/or excentric shaft 2-3 and/or high temperature pelletizer and/or chapelet 5-1 and/or wheelwork.
At least reciprocating feeder or oscillating feeder 5-4, feeding unit 6-1 and the cylinder interchanger 6-2 heating resisting metals such as such as iron and steel are made.
It should be noted that the path that slag enters cylinder interchanger can also be contrary with above-mentioned described path, be introduced into three cylinders cylinder to enter again between three cylinders cylinder and the second cylindrical drum and enter between the second cylindrical drum and the first cylindrical drum again, finally enter the first cylindrical drum until outlet.
Separately it should be noted that explanation only has cylindrical drum inwall to be provided with drainage plate in the embodiment of foregoing description, in fact, also can set up drainage plate at the outer wall of the first cylindrical drum and the second cylinder.
In the diagram, quantity high temperature pelletizer rotating choked flow blade and ring-type flow deflector does not represent actual quantity, and similarly, the quantity of cylinder interchanger is also not limited only to three.
In above-mentioned example, described high temperature air temperature is 300 DEG C ~ 450 DEG C is that the high-temperature slag being 1100 DEG C ~ 1600 DEG C by temperature produces.It should be noted that and produce the temperature of high warm air and the temperature of slag has funtcional relationship.
Apparatus and method described above can be used for the Exposure degree of any solid-state and molten slag, and do not need to do any suitability process.Apparatus and method described above are not only confined to the process to waste steel slag, can also process the waste residue of non-ferrous metal and chemical industry discharge.
Claims (28)
1. a high-temperature slag heat recovering device, is characterized in that, the main heat exchanger of described device is a horizontal cylindrical device, comprising:
The cylindrical drum of at least two different diameters is installed together with one heart and can around middle shaft rotation;
One end of first cylindrical drum arranges slag entrance;
One end of second cylindrical drum arranges slag exit;
The passage that slag moves between the inlet, slag enters the first cylindrical drum from entrance and enters the second cylindrical drum with the direction contrary in the first cylindrical drum with it again, until discharge from outlet.
2. high-temperature slag heat recovering device according to claim 1, it is characterized in that, described main heat exchanger also comprises and the first cylindrical drum and the coaxial mounted three cylinders cylinder of the second cylindrical drum, and slag moves until discharge from exporting with the direction contrary in the second cylindrical drum with it through three cylinders cylinder.
3. high-temperature slag heat recovering device according to claim 1 and 2, it is characterized in that, the slag exit of described main heat exchanger is the entrance that pre-hot blast enters main heat exchanger simultaneously, slag entrance is the outlet of high warm air simultaneously, pre-hot blast in the passage that slag moves to flow and carry out heat exchange fully with slag contrary direction of moving with it.
4. according to the arbitrary described high-temperature slag heat recovering device of claim 1-3, it is characterized in that, the inwall of arbitrary cylindrical drum of described main heat exchanger establishes drainage plate, during device work, slag granulating thing is flowed in certain direction.
5., according to the arbitrary described high-temperature slag heat recovering device of claim 1-4, it is characterized in that, arbitrary cylindrical drum of described main heat exchanger has tapering and moves in passage to guide slag.
6. high-temperature slag heat recovering device according to claim 5, is characterized in that, the direction of the tapering of the cylindrical drum of described main heat exchanger is that the direction of moving along slag attenuates.
7. according to the arbitrary described high-temperature slag heat recovering device of claim 1-6, it is characterized in that, described device also comprises closed type heat-exchange system, pre-hot blast is sent into main heat exchanger from slag exit and draws high warm air from slag entrance.
8. high-temperature slag heat recovering device according to claim 7, it is characterized in that, also comprise temperature sensor in described closed type heat-exchange system to be used for detecting the wind-warm syndrome of being discharged wind by main heat exchanger, wind-warm syndrome reaches predetermined threshold value, then draw for waste heat equipment used by airduct, if wind-warm syndrome does not reach predetermined threshold value, then continued to return main heat exchanger by slag exit.
9. according to the arbitrary described high-temperature slag heat recovering device of claim 1-8, it is characterized in that, described device comprises a high temperature pelletizer, slag was granulated by high temperature pelletizer before entering main heat exchanger, described high temperature pelletizer is a vertical cylinder shape device, inwall is provided with many group ring-type flow deflectors, slag entrance is provided with on its top, bottom is provided with normal temperature wind entrance and the outlet of slag granulating thing, middle part is provided with transmission shaft, driven by the oil motor or motor that are positioned at high temperature pelletizer bottom, transmission shaft is provided with many groups and rotates choked flow blade, this group choked flow blade effectively can slow down the falling velocity of slag when equipment work.
10. high-temperature slag heat recovering device according to claim 9; it is characterized in that, normal temperature wind enters high temperature pelletizer from the bottom of high temperature pelletizer, is finally pumped from the upper end of high temperature pelletizer; carry out first time heat exchange with slag in this process, form pre-hot blast.
11. high-temperature slag heat recovering devices according to claim 9; it is characterized in that; described device also comprises a closed shredder assembly; described closed shredder assembly is provided with determines Hubei Province plate and moving jaw plate; dynamic Hubei Province plate is driven by oil motor or motor; around excentric shaft motion, and determine Hubei Province plate interaction, be used for high-temperature slag is broken and be supplied to high temperature pelletizer.
12. high-temperature slag heat recovering devices according to claim 11, is characterized in that, described closed shredder assembly comprises and broken for slag thing is supplied to the first outlet of high temperature pelletizer and non-broken thing is supplied to second outlet in non-broken material storehouse.
13. high-temperature slag heat recovering devices according to claim 12, is characterized in that, described determine Hubei Province plate can horizontal direction retreat, make non-broken thing along rigidity grid section glide, with by non-broken thing by second outlet discharge closed shredder assembly.
14. high-temperature slag heat recovering devices according to claim 13, is characterized in that, Hubei Province strip of determining in described closed shredder assembly has locking latches, locking latches is driven by hydro-cylinder or electric push rod, when determining Hubei Province plate advance and putting in place, locking pin stretches out, and makes to determine Hubei Province plate locking; When determining Hubei Province plate and retreating, locking pin is regained, and makes to determine Hubei Province plate and unlocks.
15. according to the arbitrary described high-temperature slag heat recovering device of claim 9-14, and it is characterized in that, described device also comprises closed tipple, for the high-temperature slag mixed is supplied closed shredder assembly.
16. according to the arbitrary described high-temperature slag heat recovering device of claim 1-15, it is characterized in that, the feeding unit of described main heat exchanger is a horizontal cylindrical device, is provided with slag entrance on its top, one end of cylinder is provided with slag exit, and the other end is provided with the outlet of high warm air.
17. high-temperature slag heat recovering devices according to claim 16, it is characterized in that, the turning direction of each cylindrical drum of described main heat exchanger is consistent.
18. high-temperature slag heat recovering devices according to claim 17, is characterized in that, each cylindrical drum of described main heat exchanger is rotated with identical speed.
19. according to the arbitrary described high-temperature slag heat recovering device of claim 1-18, it is characterized in that, described main heat exchanger also comprises a drawing mechanism, the drawing mechanism of described main heat exchanger is a horizontal cylindrical device, one end of cylinder is provided with slag entrance, bottom is provided with low temperature slag exit, and top is provided with pre-hot-wind inlet.
20. according to the arbitrary described high-temperature slag heat recovering device of claim 1-19, and it is characterized in that, the first cylindrical drum of described main heat exchanger is positioned at the inside of the second cylindrical drum, and the second cylindrical drum is positioned at the inside of three cylinders cylinder; The direction of slag motion enters between the first cylindrical drum and the second cylindrical drum from the first cylindrical drum inside to enter between the second cylindrical drum and three cylinders cylinder again, slag direction of motion between the first cylindrical drum and the second cylindrical drum is contrary with in the direction of motion of the first cylindrical drum inside, and the direction of moving between the second cylindrical drum and three cylinders cylinder is identical with in the direction of motion of the first cylindrical drum inside.
21. high-temperature slag heat recovering devices according to claim 20, is characterized in that, described slag enters into the second cylindrical drum from one end of the first cylindrical drum opening, and enter into three cylinders cylinder from one end of the second cylindrical drum opening.
22. high-temperature slag heat recovering devices according to claim 20 or 21, it is characterized in that, the length of the second cylindrical drum of described main heat exchanger is longer than the first cylindrical drum and is shorter than three cylinders cylinder.
23. according to the arbitrary described high-temperature slag heat recovering device of claim 20-22, it is characterized in that, first cylindrical drum of described main heat exchanger and the second cylindrical drum are fully contained among three cylinders cylinder, described first cylindrical drum protrudes from the opening end of the second cylindrical drum, and the shell of described three cylinders cylinder forms the shell of main heat exchanger.
The method of 24. 1 kinds of high-temperature slag Exposure degree, it is characterized in that, comprise and high-temperature slag is moved in the passage between the slag entrance and slag exit of main heat exchanger, comprise and enter the first cylindrical drum inside from slag entrance to enter into the second cylindrical drum more inner until discharge from slag exit, slag direction that is inner in the first cylindrical drum and the second cylindrical drum internal motion is contrary; Meanwhile, pre-hot blast flows through slag passage from slag exit and flows out from slag entrance, carries out abundant heat exchange in the process on the contrary with the direction that high-temperature slag move is complete.
The method of 25. high-temperature slag Exposure degree according to claim 24, is characterized in that, the passage of described high-temperature slag also comprises and enters three cylinders cylinder, and the direction that slag moves in three cylinders cylinder is identical with the direction of moving in the first cylindrical drum.
The method of 26. high-temperature slag Exposure degree according to claim 24 or 25, is characterized in that, described high-temperature slag also comprised process that is broken and granulation before entering main heat exchanger heat exchange.
The method of 27. high-temperature slag Exposure degree according to claim 26, is characterized in that, comprises first time heat exchange and form pre-hot blast and supply main heat exchanger by the slag exit of main heat exchanger in the process of described fragmentation and granulation.
The method of 28. high-temperature slag Exposure degree according to claim 24-27, it is characterized in that, described method also comprises the wind-warm syndrome detecting the high warm air flowed out from main heat exchanger, if wind-warm syndrome exceedes predetermined threshold value, then draw supply waste heat equipment, if do not reach predetermined threshold value, then the slag exit continuing through main heat exchanger turns back in main heat exchanger.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1406412.5A GB2525007A (en) | 2014-04-09 | 2014-04-09 | A method and system for heat recovery from high-temperature slag |
| GBGB14064125 | 2014-04-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105112575A true CN105112575A (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510163227.2A Pending CN105112575A (en) | 2014-04-09 | 2015-04-08 | A method and system for heat recovery from high-temperature slag |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105112575A (en) |
| GB (1) | GB2525007A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022666A (en) * | 2017-05-31 | 2017-08-08 | 马鞍山市双益机械制造有限公司 | A kind of slag sluicing system, the cooling device of the desulfurizing slag of hot metal handled online |
| CN107022665A (en) * | 2017-05-31 | 2017-08-08 | 马鞍山市双益机械制造有限公司 | A kind of slag sluicing system, the cooling device of the desulfurizing slag of hot metal of processed offline |
| CN107217119A (en) * | 2017-05-31 | 2017-09-29 | 马鞍山市双益机械制造有限公司 | A kind of slag sluicing system, the cooling device of the desulfurizing slag of hot metal of online and offline processing |
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| CN108531745B (en) * | 2018-06-28 | 2024-05-07 | 衢州市荣胜环保科技有限公司 | Metal slag recovery processing system |
| CN109238492B (en) * | 2018-11-14 | 2020-03-03 | 重庆大学 | Temperature monitoring system of granulator |
| CN110186019B (en) * | 2019-06-12 | 2024-01-16 | 江苏联储能源科技有限公司 | Extra-high temperature liquid metallurgical slag waste heat recovery device and waste heat recovery system |
| EP4256090A1 (en) * | 2020-12-02 | 2023-10-11 | White Black Slag Technology S.R.L. | An improved cooling apparatus |
| IT202100007661A1 (en) * | 2021-03-29 | 2022-09-29 | Cicsa S R L | METHOD FOR COOLING AND THERMAL RECOVERY FROM VERY HIGH TEMPERATURE MATERIALS |
| CN116147357B (en) * | 2022-10-27 | 2023-09-05 | 河南省冶金研究所有限责任公司 | Comprehensive heat energy recovery system and method for metallurgical kiln |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU727590A1 (en) * | 1977-10-10 | 1980-04-15 | Государственный Ордена Ленина Союзный Институт По Проектированию Металлургических Заводов "Гипромез" | Light filler producing device |
| DE3101374A1 (en) * | 1981-01-17 | 1982-12-02 | Heinz-Josef 3436 Hessisch Lichtenau Krause | Process for obtaining heat from drawn-off slag |
| DE3343921A1 (en) * | 1983-12-05 | 1985-06-13 | Ferdinand Dipl.-Ing. Dr.mont. 6374 Steinbach Fink | Process and equipment for recovering the waste heat from molten metallurgical slags |
| CN202599146U (en) * | 2012-04-25 | 2012-12-12 | 江苏牧羊集团有限公司 | Multi-return roller cooler |
| CN103194552B (en) * | 2013-04-09 | 2015-06-17 | 青岛理工大学 | Rotary gas-solid heat exchange device utilizing waste slag heat and heat exchange method |
-
2014
- 2014-04-09 GB GB1406412.5A patent/GB2525007A/en not_active Withdrawn
-
2015
- 2015-04-08 CN CN201510163227.2A patent/CN105112575A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022666A (en) * | 2017-05-31 | 2017-08-08 | 马鞍山市双益机械制造有限公司 | A kind of slag sluicing system, the cooling device of the desulfurizing slag of hot metal handled online |
| CN107022665A (en) * | 2017-05-31 | 2017-08-08 | 马鞍山市双益机械制造有限公司 | A kind of slag sluicing system, the cooling device of the desulfurizing slag of hot metal of processed offline |
| CN107217119A (en) * | 2017-05-31 | 2017-09-29 | 马鞍山市双益机械制造有限公司 | A kind of slag sluicing system, the cooling device of the desulfurizing slag of hot metal of online and offline processing |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201406412D0 (en) | 2014-05-21 |
| GB2525007A (en) | 2015-10-14 |
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Address after: 701 room 243, 200433 University Road, Shanghai Applicant after: SHANGHAI JINGDUN TECHNOLOGY CO., LTD. Address before: 701 room 243, 200433 University Road, Shanghai Applicant before: SHANGHAI KINGTON MATERIALS CHARACTERIZATION TECHNOLOGY LIMITED |
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