CN203866339U - High temperature slag heat recovering device - Google Patents
High temperature slag heat recovering device Download PDFInfo
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- CN203866339U CN203866339U CN201420305935.6U CN201420305935U CN203866339U CN 203866339 U CN203866339 U CN 203866339U CN 201420305935 U CN201420305935 U CN 201420305935U CN 203866339 U CN203866339 U CN 203866339U
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- rotary table
- slag
- heat
- rotary disc
- lower rotary
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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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Abstract
The utility model discloses a high temperature slag heat recovering device comprising a frame and a liquid storage groove. An upper rotary disc and a lower rotary disc are arranged inside the frame, an upper cavity is formed inside the upper rotary disc, a lower cavity is formed inside the lower rotary disc, heat guide oil fills the interiors of the upper cavity and lower cavity and soaks a heat exchange pipe, the upper and lower rotary discs are provided with a plurality of nozzles, the nozzles are connected to water incoming pipes, the lower bottom of the upper rotary disc and the upper bottom of the lower rotary disc are fitted to each other tightly, and the fitting position is provided with convex and concave grooves. The device has the advantages that by designing the upper and lower rotary disc structure, the physical property and stance of the slags are controlled, the heat utilization value is improved, the slag waste heat recovering efficiency is improved, scale high temperature slag heat recovery can be implemented, energy consumption, heat pollution and chemical pollution in the slag treatment process can be reduced effectively, and a beneficial manner is provided for efficient and economic slag treatment and slag waste heat recovery.
Description
Technical field
The utility model relates to high-temperature slag energy recovery technical field, especially relates to a kind of high-temperature slag heat-energy recovering apparatus.
Background technology
The a large amount of high-temperature molten slags (blast furnace slag, converter slag etc.) that produce in steel manufacture process, temperature is up to 1300～1600 DEG C.The specific heat capacity of slag is about 1.2kJ/ (kg DEG C), if the medial temperature of slag is in 1400 DEG C, after recovery heat, the outflow temperature of slag is by 400 DEG C, and slag per ton can add the sensible heat that reclaims 1.2GJ, is about as much as the heat producing after the perfect combustion of 41kg standard coal.For the large-scale iron and steel enterprise of 2000 tons, the high Shanghai slag, the slag total amount that within 1 year, produce exceed 8,000,000 tons, if the sensible heat of this part slag can be reclaimed so, energy-conservation total amount will reach 330,000 tons of standard coals, will make a ton steel comprehensive energy consumption decline 16kg standard coal.For domestic iron and steel enterprises, the energy saving space that reclaims blast furnace slag, converter slag sensible heat is very large.
Existing blast furnace slag heat recovery method mainly comprises water quick cooling and two kinds of methods of wind quenching.
Water quick cooling: at present, the ripe granulating steel slag technology of domestic application mostly adopt high pressure water flushing cinder or gap water spray Quench after heat vexed, granulating is without any recovery of heat facility.Adopt water Quench to process molten blast furnace slag and slag, not only waste water resource produces the steam that contains in a large number corrosive gases simultaneously, easily causes corrodibility to destroy to factory building, equipment around.From the angle of energy recovery, employing water Quench makes the high-quality heat energy of melting slag script up to 1300～1600 DEG C suddenly drop to very low temperature after processing iron and steel melting slag, and thermal utilization is worth and falls sharply.Therefore, adopt the present situation of water Quench technical finesse iron and steel melting slag to block the development of iron and steel enterprise's melting slag heat energy recycle technology.
Wind quenching: be used for producing steam, generating or blast funnace hot blast stove charge heating etc., thus the significantly problem such as reduction of the melting slag heat energy quality of having avoided need to consuming while adopting water Quench to process great lot of water resources.But while adopting wind quenching treatment process, have the activity of advantage in order to ensure to process rear blast furnace slag, need a large amount of cooling airs, this makes air blast energy consumption larger on the one hand, also makes on the other hand the outflow temperature of cooling air lower; Meanwhile, the dust pollution of wind quenching is large, is difficult to the heat energy of large-scale recovery molten blast furnace slag.All these problems, all make wind quenching process molten blast furnace slag technology and are not widely applied.
Therefore need to solve in conventional high-temperature slag heat recovery method thermal utilization be worth low, the rate of recovery is not enough and be difficult to the problems such as mass-producing reclaimer operation, and a kind of new type high temperature slag heat retrieving arrangement and method containing top rotary table and lower rotary table structure is provided.
Summary of the invention
The utility model object is to provide a kind of high-temperature slag heat-energy recovering apparatus, utilizes high-temperature slag heat reclaim unit of the present utility model, when can controlling the physical property of slag and form, improves thermal utilization and is worth, and improves the organic efficiency of melting slag waste heat.
For achieving the above object, a kind of high-temperature slag heat-energy recovering apparatus, comprise frame and reservoir, its mid frame inside is provided with top rotary table and lower rotary table, there is a upper plenum top rotary table inside, there is cavity lower rotary table inside, upper plenum and lower cavity inside are filled with respectively thermal oil, thermal oil is impregnated with heat transfer tube, top rotary table bottom surface and middle inclined-plane are provided with multiple nozzles altogether, and lower rotary table upper bottom surface has been horizontally disposed with multiple nozzles altogether, and nozzle is connected with water inlet pipe, top rotary table bottom surface and the laminating of the lower rotary table upper bottom surface degree of depth, laminating position is also designed with concave-convex type groove.
Temperature slag heat recovery method, its step is included as: high-temperature slag falls between top rotary table and lower rotary table through piping, directly by multiple nozzles, high-temperature slag is carried out to spray cooling on one side and produce steam gas, discharge through the steam outlet of frame upper end, use special pipeline to recycle; The other side passes to top rotary table and lower rotary table by thermal radiation and thermal conduction by heat, the filled thermal oil of lower cavity in upper plenum in top rotary table and lower rotary table transfers heat to heat transfer tube, heat transfer tube has heat transferring medium to take away heat by internal circulation, reclaim the heat of slag, the discarded solid slag producing is fallen in the dividing plate at 30-90 ° of pitch angle, discharges through the slag discharge port of frame lower end.
Due to design top rotary table and lower rotary table circular configuration, increase slag cooling receptor area, improve slag heat exchange efficiency.The nozzle of top rotary table and lower rotary table inside is connected with water inlet pipe, can spray a certain amount of water coolant according to the flow of slag and flow velocity.In upper plenum and lower cavity, be filled with a large amount of thermal oils, thermal oil mainly plays heat conduction transfer function.Heat transfer tube can design the structure such as spiral or intersection according to slag quality and heat recovery efficiency demand, and in it, the heat transferring medium of circulation is mainly the materials such as water coolant, fused salt or organic substance.Slag discharge port is designed respectively at frame two ends, connects the dividing plate at certain pitch angle by design, can discharge rapidly the slag after heat recuperation.
As improvement, described steam outlet connects vapor filter by design, and purified steam is discharged quality and improved steam and discharge pressure.
As improvement, described top rotary table and lower rotary table laminating position are provided with concavity and convexity groove, are beneficial to physical property and the form of controlling high-temperature slag.
As improvement, design described driven by motor, control and rotate pole and lower rotary table rotation, be beneficial to and discharge bonding slag; Described rigid top is lifted the lifting of part control lower rotary table, and then controls flow velocity and the form of high-temperature slag; Described they sup-port lower rotary table.
The utility model has the advantage of by design top rotary table and lower rotary table structure, solved thermal utilization in conventional high-temperature slag heat recovery method and be worth the problems such as low, the rate of recovery is not enough, realize mass-producing reclaimer operation; And can control the formation form of slag, prevent the bonding stop of slag.
Brief description of the drawings
Accompanying drawing 1 is perspective view of the present utility model.
Top rotary table in the accompanying drawings, 1, frame, 2, reservoir, 3,, 4, lower rotary table, 5, upper plenum, 6, lower cavity, 7, thermal oil, 8, heat transfer tube, 9, nozzle, 10, water inlet pipe, 11, concave-convex type groove, 12, high-temperature slag, 13, pipeline, 14, rotate pole, 15, motor, 16, rigid top is lifted part, and 17, support bar, 18, dividing plate, 19, slag discharge port, 20, steam outlet, 21, vapor filter.
Embodiment
A kind of high-temperature slag heat-energy recovering apparatus as shown in drawings, comprise frame (1) and reservoir (2), its mid frame (1) inside is provided with top rotary table (3) and lower rotary table (4), there is a upper plenum (5) top rotary table (3) inside, there is cavity (6) lower rotary table (4) inside, upper plenum (5) and lower cavity (6) inside are filled with respectively thermal oil (7), thermal oil (7) is impregnated with heat transfer tube (8), top rotary table (3) bottom surface and middle inclined-plane are provided with multiple nozzles (9) altogether, lower rotary table (4) upper bottom surface has been horizontally disposed with multiple nozzles (9) altogether, nozzle (9) is connected with water inlet pipe (10), top rotary table (3) bottom surface and the laminating of lower rotary table (4) the upper bottom surface degree of depth, laminating position is also designed with concave-convex type groove (11).
Reservoir (2) is containing high-temperature slag (12) solution, slag (12) is connected with top rotary table (3) by pipeline (13), lower rotary table (4) lower end is connected with rotates pole (14), rotate pole (14) and be connected with motor (15), rotate pole (14) lower end and be connected with rigid top act part (16), rigid top is lifted part (16) lower end and is connected with support bar (17), rotate pole (14) periphery and be provided with the dividing plate (18) of pitch angle 30-90 °, frame (1) lower end is provided with slag discharge port (19), frame (1) upper end is provided with steam outlet (20), steam outlet (20) is connected with vapor filter (21).
High-temperature slag heat recovery method, its step is included as: high-temperature slag (12) falls between top rotary table (3) and lower rotary table (4) through piping (13), directly by multiple nozzles (9), high-temperature slag (12) is carried out to spray cooling on one side and produce steam gas, steam outlet (20) through frame (1) upper end is discharged, and uses special pipeline to recycle; The other side passes to top rotary table (3) and lower rotary table (4) by thermal radiation and thermal conduction by heat, the filled thermal oil (7) of lower cavity (6) in upper plenum (5) and lower rotary table (4) in top rotary table (3) transfers heat to heat transfer tube (8), heat transfer tube (8) has heat transferring medium to take away heat by internal circulation, reclaim the heat of slag (12), the discarded solid slag that produces is fallen the dividing plate (18) in 30-90 ° of pitch angle, discharges through the slag discharge port (19) of frame (1) lower end.
Steam outlet (20), by the purification of vapor filter (21), improves steam and discharges quality and steam discharge pressure; Concave-convex type groove (11) is controlled physical property and the form of high-temperature slag (12); By the drive of motor (15), control and rotate pole (14) and lower rotary table (4) rotation, be beneficial to and discharge bonding slag (12); Rigid top is lifted part (16) and is controlled lower rotary table (4) lifting, and then controls flow velocity and the form of high-temperature slag (12), and support bar (17) supports lower rotary table (4) and rotates pole (14).
Claims (2)
1. a high-temperature slag heat-energy recovering apparatus, comprise frame (1) and reservoir (2), it is characterized in that frame (1) inside is provided with top rotary table (3) and lower rotary table (4), there is a upper plenum (5) described top rotary table (3) inside, there is cavity (6) described lower rotary table (4) inside, described upper plenum (5) and lower cavity (6) inside are filled with respectively thermal oil (7), described thermal oil (7) is impregnated with heat transfer tube (8), described top rotary table (3) bottom surface and middle inclined-plane are provided with multiple nozzles (9) altogether, described lower rotary table (4) upper bottom surface has been horizontally disposed with multiple nozzles (9) altogether, described nozzle (9) is connected with water inlet pipe (10), described top rotary table (3) bottom surface and the laminating of lower rotary table (4) the upper bottom surface degree of depth, laminating position is also designed with concave-convex type groove (11).
2. a kind of high-temperature slag heat-energy recovering apparatus according to claim 1, it is characterized in that described reservoir (2) is containing high-temperature slag (12) solution, described slag (12) is connected with top rotary table (3) by pipeline (13), described lower rotary table (4) lower end is connected with rotates pole (14), described rotation pole (14) is connected with motor (15), described rotation pole (14) lower end is connected with rigid top and lifts part (16), described rigid top is lifted part (16) lower end and is connected with support bar (17), described rotation pole (14) periphery is provided with the dividing plate (18) of pitch angle 30-90 °, described frame (1) lower end is provided with slag discharge port (19), described frame (1) upper end is provided with steam outlet (20), described steam outlet (20) is connected with vapor filter (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305935.6U CN203866339U (en) | 2014-06-10 | 2014-06-10 | High temperature slag heat recovering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305935.6U CN203866339U (en) | 2014-06-10 | 2014-06-10 | High temperature slag heat recovering device |
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| Publication Number | Publication Date |
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| CN203866339U true CN203866339U (en) | 2014-10-08 |
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|---|---|---|---|
| CN201420305935.6U Expired - Fee Related CN203866339U (en) | 2014-06-10 | 2014-06-10 | High temperature slag heat recovering device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104087690A (en) * | 2014-06-10 | 2014-10-08 | 曾志勇 | Thermal energy recovery device and thermal energy recovery method of high-temperature slag |
| CN104515119A (en) * | 2014-10-12 | 2015-04-15 | 王志凯 | High-temperature liquid slag heat energy recovery device |
-
2014
- 2014-06-10 CN CN201420305935.6U patent/CN203866339U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104087690A (en) * | 2014-06-10 | 2014-10-08 | 曾志勇 | Thermal energy recovery device and thermal energy recovery method of high-temperature slag |
| CN104515119A (en) * | 2014-10-12 | 2015-04-15 | 王志凯 | High-temperature liquid slag heat energy recovery device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20170610 |