CN104357606B - A kind of blast furnace melts the treatment process of slag - Google Patents
A kind of blast furnace melts the treatment process of slag Download PDFInfo
- Publication number
- CN104357606B CN104357606B CN201410711872.9A CN201410711872A CN104357606B CN 104357606 B CN104357606 B CN 104357606B CN 201410711872 A CN201410711872 A CN 201410711872A CN 104357606 B CN104357606 B CN 104357606B
- Authority
- CN
- China
- Prior art keywords
- slag
- blast furnace
- urceolus
- water
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
- Furnace Details (AREA)
Abstract
The present invention relates to slag treatment technical field in pig iron smelting, particularly provide a kind of blast furnace to melt the treatment process of slag.This treatment process utilizes blast furnace to melt Slag treatment device, and melts Slag treatment device to blast furnace and control.By this treatment process, the processing requirements of blast furnace slag quench, granulation and UTILIZATION OF VESIDUAL HEAT IN can be met, can avoid again using high-pressure steam or organic combustibles.
Description
Technical field
The present invention relates to slag treatment technical field in pig iron smelting, particularly provide a kind of blast furnace to melt the treatment process of slag.
Background technology
Slag is the byproduct during metallurgical industry is produced, and the blast furnace slag that wherein pig iron smelting produces occupies very large ratio.Dry method blast furnace slag treatment technology needs solution two subject matters: one is that cooling fast is also granulated as far as possible to form vitreous state tissue, and two is the UTILIZATION OF VESIDUAL HEAT IN in process of cooling.The outflow temperature of liquid blast furnace is about 1450 DEG C, if in temperature-fall period, especially near 1200 DEG C, can meet chilling condition, then can form vitrified slag; Become hardening state when slag temperature is less than 850 DEG C, can be broken process and no longer bonding; Vitreous state ratio is greater than 90% and effectively the slag of granulation can be used as the Additive use of cement, and utility value is high.Blast furnace slag discharges a large amount of heat in process of cooling, and it is slower to determine the dispose procedure of heat by the thermophysical parameter of slag, this just requires to create contradiction with blast furnace slag quench, the heat energy of Collection and use slag release as much as possible under the condition meeting chilling is the effective way that metallurgy industry is saved energy and reduce the cost.
Cylinder (rotary drum) method is widely used in various cooling field, in blast furnace slag process, be mainly inner-cooled.Such as, US Patent No. 4050884 devises twin-roll method and melts slag waste heat boiler device, and liquid slag is formed and melts slag bath between two cylinders and gear dam, melts slag on the cylinder rotated, forms slag blanket cooling, heat is delivered in the water pipe in cylinder wall, and water utilizes after being heated to be high temperature and high pressure steam.With the key distinction of US4050884, chilling and waste-heat recovery device that US Patent No. 4330264 and US4420304 use twin-roll method to devise to melt slag equally, be that heat-eliminating medium uses boiling point to be the thermal oil of more than 200 DEG C, avoid the danger of high-pressure steam.To existing be that the blast furnace slag cooling technology of the type of cooling is analyzed with drum process, can find, the key distinction between different patent is that the part of physical construction is improved and the change of heat-eliminating medium.
Above-mentioned patent has its respective technical superiority, and we are for patent US4330264, does a summary to its some problem existed.Patent US4330264 adopts the thermal oil of boiling point more than 200 DEG C as heat-eliminating medium, and make thermal oil become saturation steam to carry out waste heat recovery, this heat-eliminating medium and methods for cooling make working temperature in cylinder for a long time more than 200 DEG C, reduce the convection transfer rate of heat-eliminating medium and inner wall of rotary drum, the rate of cooling of slag is declined, and high temperature also can make barrel material generation high temperature creep reduce work-ing life; Thermal oil and steam thereof, in use once leak, are breakneck in the hot conditions and severe environment at blast furnace slag process scene.Carry out analysis to the embodiment of patent US4330264 known, although very high by the slag surface chilling speed of this device process, the vitreous state rate of slag surface is very high, and the inside of slag blanket does not obtain chilling, and the overall vitreous state rate of slag is less than 80%; And fully do not cool due to slag blanket inside, be not reduced to the stiffening temperature of 850 DEG C during mechanically peel, the slag blanket peeled off can continue to bond together and form block slag, has a strong impact on the later stage to use.Twin-roll method adopts the cylinder that two structures are identical, will make whole device cisco unity malfunction if in use there is one to break down; The cylindrical shell rotated need use the tightness system preventing liquids and gases from revealing to be connected with the equipment room do not rotated, high to equipment requirements, and often need safeguard replacing.
Lag cooler is the equipment of technology maturation, the outer cold breakdown cartridge type type of cooling of general employing, and be widely used in the solid state heat lime-ash that cooling station boiler is discharged, the initial temperature of lime-ash is about 1000 DEG C.Along with the rotation of lag cooler cylinder, lime-ash is driven by the spiral helicine blade of drums inside and advances, and heat is absorbed by the water-cooled tube between inner core and urceolus.Lag cooler cannot process liquid blast furnace, can be bonded on blade, spiral blade was lost efficacy because melt slag in cooled and solidified process.Lag cooler can be used for processing the blast furnace slag hardened.
How to utilize service water as heat transferring medium, and do not produce high-pressure steam, the chilling requirement of blast furnace slag can be met, the processing requirement of slag granulation can be met again, also can effectively utilize waste heat to be the problem to be solved in the present invention.
Summary of the invention
In order to overcome the defect of prior art, the invention provides the treatment process that a kind of blast furnace melts slag, it had both met the processing requirements of blast furnace slag quench, granulation and UTILIZATION OF VESIDUAL HEAT IN, avoided again using high-pressure steam or organic combustibles.
In order to reach the object solved the problems of the technologies described above, the technical scheme that the present invention takes is as follows.
Blast furnace melts a treatment process for slag, it is characterized in that, it utilizes blast furnace to melt Slag treatment device, and this device comprises cylinder chilling granulation system, lag cooler and residual neat recovering system; Cylinder chilling granulation system comprises an inner-cooled list cylinder and two disintegrating slag auxiliary cylinders, inner-cooled list cylinder is made up of urceolus and inner core, between urceolus and inner core, upper part of annular chamber is provided with water-cooled tube, and water-cooled tube is provided with nozzle, and lower part is water cavity and is connected with water outlet; Blast furnace melts Slag treatment device and adopts following control method:
(1) urceolus of inner-cooled list cylinder adopts heat-resisting steel material, and outside diameter is 500-5000mm; Thickness is 5-40mm;
(2) inner core of inner-cooled list cylinder and urceolus gap are 200-1000mm;
(3) the urceolus rotating speed of inner-cooled list cylinder is that 1-6 turns/min;
(4) adopt solid spraying nozzle, nozzle water pressure is 0.5-10bar, and spray angle is 40 °-110 °, and single-nozzle flow is 1-60L/min;
(5) arrange water-cooled tube and nozzle quantity, ensure that tube inner surface upper part forms continuous water smoke outside, having, slag blanket side layout is closeer;
(6) blast furnace melts the drop point place diameter of slag on urceolus surface and vertical direction angle is taken as 0 °-40 °.
Further, the urceolus outside diameter of inner-cooled list cylinder is preferably 1000-3000mm; Thickness is preferably 10-20mm.
Further, the inner core of inner-cooled list cylinder and urceolus gap are preferably 300-500mm.
Further, the urceolus rotating speed of inner-cooled list cylinder is preferably 1.5-4 and turns/min.
Further, described nozzle water pressure is preferably 0.7-3bar, and spray angle is preferably 50 °-70 °, and single-nozzle flow is generally preferably 3-10L/min.
Further, described blast furnace melts the drop point place diameter of slag on urceolus surface and vertical direction is preferably 5 °-15 °.
Further, described disintegrating slag auxiliary cylinder outer surface line speed is taken as the 2-4 of the urceolus outer surface line speed of inner-cooled list cylinder doubly.
Further, the disintegrating slag auxiliary cylinder independent operating of described cylinder chilling granulation system, inner water flowing cooling, its outside surface can be smooth, may also be various channel form.
Further, the urceolus of the inner-cooled list cylinder of described cylinder chilling granulation system rotates and inner core is motionless, and water-cooled tube is fixed on inner core, and urceolus two ends port is by inner core port support.
Further, the two ends of the inner-cooled list cylinder of described cylinder chilling granulation system are symmetrical arranged, and are equipped with water outlet, water-cooled tube water-in and supporting structure, and the water circuit system of every one end all independently can bear the cooling requirement of whole inner-cooled list cylinder.
Beneficial effect of the present invention:
(1) by melting the control of slag device to blast furnace, at urceolus and disintegrating slag auxiliary cylinder point of contact place, slag is before being crushed stripping by disintegrating slag auxiliary cylinder, and in slag blanket, top temperature is no more than 850 DEG C, and slag is all cooled to below stiffening temperature; The minimum rate of cooling of slag is greater than 60 DEG C/s, meets the requirement of blast furnace slag quench, and cooled slag is all almost vitreous state tissue.
(2) cooling of water in second circumference water cavity, and after the water-spraying control of nearly quadrant subsequently, urceolus top temperature is no more than 80 DEG C.So both can meet the requirement that blast furnace melts slag chilling, ensure again that cylinder material high temperature creep did not occur.
(3) intensification of water can not more than 25 DEG C, control inflow temperature and be less than 30 DEG C, then in whole inner-cooled list cylinder, the state of water is liquid substantially, therefore whole device adopts liquid water as heat-eliminating medium, avoid the danger that high-temperature high-pressure steam brings, also do not use inflammable organism and steam thereof.
(4) disintegrating slag auxiliary cylinder is extruded when blast furnace slag is hardening and is pulverized into slag particle, realize slag granulation and can not bonding one-tenth bulk slag again; Adopt single cylinder but not twin-roll mode; the two ends being equipped with inner-cooled list cylinder are symmetrical arranged; and disintegrating slag auxiliary cylinder and inner-cooled list cylinder independence installation and operation, eliminate baroque liquid in rotation linking device, make whole cylinder chilling granulation system be convenient to safeguard and continuous service.
(5) inner core of inner-cooled list cylinder maintains static, and both can be used for fixing water-cooled tube, can support urceolus again, also can save kinetic energy during rotation; The inlet and outlet system of whole device can be closed, and heat-eliminating medium recycles, and neither wastes new water, effectively can carry out waste heat recovery again simultaneously.
Accompanying drawing explanation
Fig. 1 is the one-piece construction figure that blast furnace of the present invention melts Slag treatment device;
Fig. 2 is that blast furnace of the present invention melts Slag treatment device intermediate roll chilling granulation system front view;
Fig. 3 is that blast furnace of the present invention melts inner-cooled list cylinder port sectional view in Slag treatment device;
Fig. 4 is in embodiment 1, thickness of slag layer direction temperature profile after slag is cooled;
Fig. 5 is in embodiment 1, urceolus thickness direction temperature profile;
Fig. 6 is in embodiment 2, thickness of slag layer direction temperature profile after slag is cooled;
Fig. 7 is in embodiment 2, urceolus thickness direction temperature profile.
Wherein: 1. slag trough; 2. urceolus; 3. inner core; 4. water-cooled tube; 5. nozzle; 6. slag blanket; 7. disintegrating slag auxiliary cylinder; 8. dregs scraper; 9. skimming plate; 10. slag particle; 11. lag cooler; 12. opening for feeds; 13. discharge ports; 14-15. water pump; 16. lag cooler water inlet pipes; 17. lag cooler rising pipes; 18. heat-exchange equipments; 19. cooling towers; 20. steady bearings; 21. water outlets; 22. pedestals; 23. supporting cups; 24. supporting-point roller; 25. spacing to wheel; 26. electric motor; 27. motor frames; 28. hinge wheels; 29. back up pads.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further elaborated.
As Figure 1-3, urceolus 2 and inner core 3 form the annular chamber of inner-cooled list cylinder, and upper part of annular chamber is furnished with some water-cooled tubes 4, and every root water-cooled tube 4 is provided with some nozzles 5, and the internal surface to urceolus 2 is sprayed water; The water sprayed from nozzle 5 flows down along the inwall of urceolus 2, forms the water body of flowing, flow out, be supplied to lag cooler water inlet pipe 16 through water pump 14 from the water outlet 21 between urceolus 2 and inner core 3 in lower part of annular chamber.
Urceolus 2 is supported on supporting-point roller 24 by two supporting cups 23, drives urceolus 2 to rotate by electric motor 26 and hinge wheel 28, and two groups spacing stops urceolus 2 axial float to wheel 25.Motor frame 27 is for supporting electric motor 26 and necessity is set up, and supporting-point roller 24 and motor frame 27 etc. are fixed on pedestal 22.
Inner core 3 is fixed on pedestal 22 by central shaft, and water-cooled tube 4 is fixed on inner core 3; In port, inner core 3 is connected by water-cooled tube 4, steady bearing 20 and back up pad 29 with urceolus 2, rotates for supplemental support urceolus 2.
Disintegrating slag auxiliary cylinder 7 is located between hinge wheel 28 and supporting cup 23, and between disintegrating slag auxiliary cylinder 7 and urceolus 2, gap is very little and rotating shaft is in same level.Disintegrating slag auxiliary cylinder 7 and electric motor 26 are located at the both sides of urceolus 2 respectively.
When blast furnace melts the work of Slag treatment device, first use water pump 14,15 to be that whole device supplies water, then make urceolus 2, disintegrating slag auxiliary cylinder 7 and lag cooler 11 rotate.Liquid blast furnace flows to the urceolus 2 of rotation from slag trough 1, forms thin slag blanket at urceolus 2 outside surface.Slag blanket is run into disintegrating slag auxiliary cylinder 7 after chilling, slag blanket is milled into slag particle 10 and peels off from urceolus 2, the slag on attachment urceolus 2 and disintegrating slag auxiliary cylinder 7 surface scrapes by the dregs scraper 8 below urceolus 2 and disintegrating slag auxiliary cylinder 7, slag particle 10 enters the opening for feed 12 of lag cooler 11 along skimming plate 9, from discharge port 13 flows out after being cooled by lag cooler 11.The hot water flowed out from lag cooler rising pipe 17 is supplied to heat-exchange equipment 18, and the water after heat exchange cooling is supplied water to water-cooled tube 4 and disintegrating slag auxiliary cylinder 7 by water pump 15 after being cooled by cooling tower 19.
Below for the engineering design of certain test subject, control overflow blast furnace being melted to Slag treatment device is described in detail.
In design, get that urceolus high temperature steel specific heat capacity used is 550J/ (kgK), density is 7800kg/m
3, thermal conductivity is 17W/ (mK); The specific heat capacity of blast furnace slag is 1330J/ (kgK), density is 2500kg/m
3, it is 1400 DEG C that blast furnace melts the medial temperature that slag falls the outer barrel surface of inner-cooled list cylinder; Cold in-water temperature 30 DEG C, the comprehensive convection transfer rate 1000W/ (m of water and urceolus
2k), the comprehensive convection transfer rate 20W/ (m of air and slag blanket
2k), slag blanket surface average radiated transmission rate 0.8; The effective cooling length of inner-cooled list cylinder is 6000mm, is furnished with the disintegrating slag auxiliary cylinder that two each length are 3000mm.
Embodiment 1
The blast furnace slag that certain mean coefficient of heat conductivity is 0.75W/ (mK) is processed.
The urceolus outside diameter of inner-cooled list cylinder is 1000mm, and thickness is 10mm, and rotating speed is 3.5 turns/min; Inner-cooled list cylinder outside diameter is 300mm, and thickness is 5mm, and inner core and urceolus gap are 350mm; Disintegrating slag auxiliary cylinder outside diameter is 400mm, wall thickness 50mm, and rotating speed is 20 turns/min, and outside surface is through roughened; Adopt certain type square water atomizing nozzle, nozzle bore 15mm, intake pressure is 3bar, and spray angle is 60 °, and flow is 4.5L/min, jet hole is 250mm apart from outer tube inner surface, water-cooled tube is 5, every root is joined 22 nozzles, as shown in Figure 1, having, slag blanket side layout is closeer, ensures that tube inner surface forms continuous water smoke outside; Need 110, nozzle altogether, calculating general import discharge is 495L/min.
Blast furnace melts slag falls point of contact place diameter on outer barrel surface and vertical direction angle 5 °, and the flow that blast furnace melts slag is 1.26m
3/ h, forming thickness is the slag blanket of 2mm, and the time that blast furnace slag is cooled on urceolus is about 4.5s.At urceolus and disintegrating slag auxiliary cylinder point of contact place, in slag blanket, thickness direction temperature distribution as shown in Figure 4, and urceolus thickness direction temperature distribution as shown in Figure 5.As can be seen from Figure 4, slag is before being crushed stripping by disintegrating slag auxiliary cylinder, and in slag blanket, top temperature is 845 DEG C, illustrates that slag is all cooled to below stiffening temperature; Known by calculating cooling time, the minimum rate of cooling of slag is about 120 DEG C/s, meets the requirement of blast furnace slag quench, and cooled slag is all almost vitreous state tissue.As can be seen from Figure 5, urceolus and slag blanket interface temperature are up to 280 DEG C, and urceolus internal surface temperature is close to 100 DEG C.The cooling of urceolus water in second circumference water cavity, and after the water-spraying control of nearly quadrant subsequently, top temperature is no more than 80 DEG C.By heat calculation, cooling of furnace slag liberated heat per hour is about 3 × 10
9j, water coolant flooding quantity per hour is about 29.7m
3if, net quantity of heat be cooled water absorb, the intensification of water can not more than 25 DEG C.
Embodiment 2
The blast furnace slag that certain mean coefficient of heat conductivity is 0.2W/ (mK) is processed.
The urceolus outside diameter of inner-cooled list cylinder is 3000mm, and thickness is 20mm, and rotating speed is 1.9 turns/min; Inner-cooled list cylinder outside diameter is 1400mm, and thickness is 15mm, and inner core and urceolus gap are 800mm; Disintegrating slag auxiliary cylinder outside diameter is 1000mm, wall thickness 100mm, and rotating speed is 15 turns/min, and every 2mm, to be carved with width be 0.5mm to outside surface is the groove of 1mm deeply vertically; Adopt certain type solid rectangle spraying nozzle, nozzle bore 25mm, intake pressure is 1bar, spray angle is 90 °, long limit and minor face 60 °, flow is 5.8L/min, and jet hole is 300mm apart from outer tube inner surface, and the water-cooled tube equidistantly arranged is 8 altogether, every root is joined 18 nozzles, ensure that tube inner surface forms continuous water smoke outside; Need 144, nozzle altogether, calculating general import discharge is 835L/min.
Blast furnace melts slag falls point of contact place diameter on outer barrel surface and vertical direction angle 15 °, and the flow that blast furnace melts slag is 1.85m
3/ h, forming thickness is the slag blanket of 1.8mm, and the time that blast furnace slag is cooled on urceolus is about 9.2s.At urceolus and disintegrating slag auxiliary cylinder point of contact place, in slag blanket, thickness direction temperature distribution as shown in Figure 6, and urceolus thickness direction temperature distribution as shown in Figure 7.As can be seen from Figure 6, slag is before being crushed stripping by disintegrating slag auxiliary cylinder, and in slag blanket, top temperature is 840 DEG C, illustrates that slag is all cooled to below stiffening temperature; Known by calculating cooling time, the minimum rate of cooling of slag is about 61 DEG C/s, meets the requirement of blast furnace slag quench, and cooled slag is all almost vitreous state tissue.As can be seen from Figure 6, urceolus and slag blanket interface temperature are up to 192 DEG C, and urceolus internal surface temperature is close to 70 DEG C.The cooling of urceolus water in second circumference water cavity, and after the water-spraying control of nearly quadrant subsequently, top temperature is no more than 70 DEG C.By heat calculation, cooling of furnace slag liberated heat per hour is about 5.1 × 10
9j, water coolant flooding quantity per hour is about 50m
3if, net quantity of heat be cooled water absorb, the intensification of water can not more than 25 DEG C.
Claims (10)
1. blast furnace melts a treatment process for slag, it is characterized in that, it utilizes blast furnace to melt Slag treatment device, and this device comprises cylinder chilling granulation system, lag cooler and residual neat recovering system; Cylinder chilling granulation system comprises an inner-cooled list cylinder and two disintegrating slag auxiliary cylinders, inner-cooled list cylinder is made up of urceolus and inner core, between urceolus and inner core, upper part of annular chamber is provided with water-cooled tube, and water-cooled tube is provided with nozzle, and lower part is water cavity and is connected with water outlet; Blast furnace melts Slag treatment device and adopts following control method:
(1) urceolus of inner-cooled list cylinder adopts heat-resisting steel material, and outside diameter is 500-5000mm; Thickness is 5-40mm;
(2) inner core of inner-cooled list cylinder and urceolus gap are 200-1000mm;
(3) the urceolus rotating speed of inner-cooled list cylinder is that 1-6 turns/min;
(4) adopt solid spraying nozzle, nozzle water pressure is 0.5-10bar, and spray angle is 40 °-110 °, and single-nozzle flow is 1-60L/min;
(5) arrange water-cooled tube and nozzle quantity, ensure that tube inner surface upper part forms continuous water smoke outside, having, slag blanket side layout is closeer;
(6) blast furnace melts the drop point place diameter of slag on urceolus surface and vertical direction angle is taken as 0 °-40 °.
2. blast furnace as claimed in claim 1 melts the treatment process of slag, and the urceolus outside diameter of described inner-cooled list cylinder is 1000-3000mm; Thickness is 10-20mm.
3. blast furnace as claimed in claim 1 or 2 melts the treatment process of slag, and the inner core of inner-cooled list cylinder and urceolus gap are 300-500mm.
4. blast furnace as claimed in claim 3 melts the treatment process of slag, and the urceolus rotating speed of inner-cooled list cylinder is that 1.5-4 turns/min.
5. the blast furnace as described in claim 1,2 or 4 melts the treatment process of slag, and described nozzle water pressure is 0.7-3bar, and spray angle is 50 °-70 °, and single-nozzle flow is 3-10L/min.
6. blast furnace as claimed in claim 5 melts the treatment process of slag, and described blast furnace melts the drop point place diameter of slag on urceolus surface and vertical direction is 5 °-15 °.
7. the blast furnace as described in claim 1,2,4 or 6 melts the treatment process of slag, and disintegrating slag auxiliary cylinder outer surface line speed is taken as the 2-4 of the urceolus outer surface line speed of inner-cooled list cylinder doubly.
8. blast furnace as claimed in claim 7 melts the treatment process of slag, the disintegrating slag auxiliary cylinder independent operating of described cylinder chilling granulation system, and inner water flowing cooling, its outside surface can be smooth, may also be various channel form.
9. blast furnace as claimed in claim 7 melts the treatment process of slag, and the urceolus of the inner-cooled list cylinder of described cylinder chilling granulation system rotates and inner core is motionless, and water-cooled tube is fixed on inner core, and urceolus two ends port is by inner core port support.
10. blast furnace as claimed in claim 7 melts the treatment process of slag; the two ends of the inner-cooled list cylinder of described cylinder chilling granulation system are symmetrical arranged; be equipped with water outlet, water-cooled tube water-in and supporting structure, and the water circuit system of every one end all independently can bear the cooling requirement of whole inner-cooled list cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410711872.9A CN104357606B (en) | 2014-12-01 | 2014-12-01 | A kind of blast furnace melts the treatment process of slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410711872.9A CN104357606B (en) | 2014-12-01 | 2014-12-01 | A kind of blast furnace melts the treatment process of slag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104357606A CN104357606A (en) | 2015-02-18 |
| CN104357606B true CN104357606B (en) | 2016-04-06 |
Family
ID=52524912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410711872.9A Expired - Fee Related CN104357606B (en) | 2014-12-01 | 2014-12-01 | A kind of blast furnace melts the treatment process of slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104357606B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019174287A1 (en) * | 2018-03-16 | 2019-09-19 | 南京有荣节能科技有限公司 | Slag residual heat utilization device and molten slag granulation method |
| CN111206131A (en) * | 2020-02-28 | 2020-05-29 | 西安联创分布式可再生能源研究院有限公司 | High-temperature molten slag granulating device |
| CN111825349B (en) * | 2020-06-18 | 2021-09-07 | 西安交通大学 | Lime-calcium carbide co-production system and method |
| CN114440635B (en) * | 2022-01-19 | 2023-09-12 | 安徽省瀚海新材料股份有限公司 | Smelting equipment is used in neodymium iron boron production |
| CN114774596A (en) * | 2022-04-02 | 2022-07-22 | 南京工业大学 | Blast furnace slag roller quick-cooling dry processing device for waste heat recovery |
| CN117248085B (en) * | 2023-11-20 | 2024-02-20 | 河北新金轧材有限公司 | System capacity lifting equipment for blast furnace slag flushing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103320553A (en) * | 2013-06-25 | 2013-09-25 | 东北大学 | Device and method for quenching dry-method treatment and sensible heat recovery of high-temperature molten slag |
| CN103695581A (en) * | 2013-12-16 | 2014-04-02 | 北京中冶设备研究设计总院有限公司 | Process and equipment for slag granulation and sensible heat recovery of blast furnace |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5855095B2 (en) * | 1977-02-18 | 1983-12-08 | 石川島播磨重工業株式会社 | Molten slag processing method and device |
| JPS5731784A (en) * | 1980-07-31 | 1982-02-20 | Nippon Kokan Kk | Heat recovery apparatus for solidified slag obtained by quenching molten slag with quenching rotary drum |
-
2014
- 2014-12-01 CN CN201410711872.9A patent/CN104357606B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103320553A (en) * | 2013-06-25 | 2013-09-25 | 东北大学 | Device and method for quenching dry-method treatment and sensible heat recovery of high-temperature molten slag |
| CN103695581A (en) * | 2013-12-16 | 2014-04-02 | 北京中冶设备研究设计总院有限公司 | Process and equipment for slag granulation and sensible heat recovery of blast furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104357606A (en) | 2015-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104357606B (en) | A kind of blast furnace melts the treatment process of slag | |
| CN203096086U (en) | Rotary revolving cup for centrifuging and granulating slag of dry quenching slag device | |
| CN103924012A (en) | Device and method for recovering residual heat by dry-process granulation of metallurgical slag | |
| CN105670653A (en) | Semicoke cooling system | |
| CN111271978A (en) | High-temperature slag waste heat recovery system | |
| JPS6134072B2 (en) | ||
| CN105063259A (en) | Blast furnace slag heat recovery device and application method | |
| CN107238285A (en) | A kind of cooling recirculation system of rotary kiln surface | |
| CN209877660U (en) | Equipment suitable for cooling high-temperature molten material and recovering waste heat | |
| JP5611454B2 (en) | Method and apparatus for producing glassy slag | |
| CN103363825B (en) | High-temperature waste heat pipe recovery system | |
| CN204962807U (en) | Slag cooler | |
| CN111351340B (en) | High-temperature liquid cooling device | |
| CN109894589A (en) | A kind of water cooling plant | |
| CN103468845A (en) | Blast furnace slag discharge trench with built-in water cooling system | |
| CN104087690A (en) | Thermal energy recovery device and thermal energy recovery method of high-temperature slag | |
| CN204461044U (en) | Charcoal element revolution bed calcining furnace recirculating cooling water system | |
| CN210001877U (en) | Liquid slag solidification heat exchange device | |
| CN202177297U (en) | Spraying water cooling furnace wall | |
| CN100356127C (en) | Fast spraying freezing coldproof method | |
| CN210458237U (en) | Blast furnace slag chilling gasification device | |
| CN110681453A (en) | Large tile air cooling type ball mill | |
| CN108330231A (en) | A kind of highly effective and safe steel slag water quenching device and its application method | |
| CN214866395U (en) | Push-making machine for elbow production | |
| CN111270027B (en) | High-temperature liquid cooling method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20211201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |