CN211420205U - Resourceful treatment and heat recovery device for high-temperature liquid steel slag - Google Patents
Resourceful treatment and heat recovery device for high-temperature liquid steel slag Download PDFInfo
- Publication number
- CN211420205U CN211420205U CN201921961860.6U CN201921961860U CN211420205U CN 211420205 U CN211420205 U CN 211420205U CN 201921961860 U CN201921961860 U CN 201921961860U CN 211420205 U CN211420205 U CN 211420205U
- Authority
- CN
- China
- Prior art keywords
- slag
- collecting pit
- steam
- temperature liquid
- waste heat
- 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.)
- Active
Links
Images
Classifications
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Abstract
The utility model provides a high temperature liquid slag resourceful treatment and heat recovery unit, including connecing the sediment jar, the double hook crane, the tundish, porous high-speed air nozzle, coarse slag collecting pit, thin sediment collecting pit, the air compressor machine, the steam package, hug closely coarse slag collecting pit and thin sediment collecting pit inner wall and be provided with flat waste heat boiler subassembly and purified water delivery pipe, upwards extend in coarse slag collecting pit and thin sediment collecting pit both sides and afterbody, set up semicircle arch type tubular boiler subassembly at its top, set up a plurality of atomizing water nozzles in succession on semicircle arch type tubular boiler subassembly. The utility model discloses when realizing high temperature liquid slag resourceful treatment, can realize retrieving most high temperature liquid slag heat energy and change into steam and the hot water resource that can utilize.
Description
Technical Field
The utility model relates to a high temperature liquid steel slag resourceful treatment and heat energy recycling, in particular to environmental protection; energy conservation and emission reduction; and (5) recycling and comprehensively utilizing resources.
Background
At present, although a solution for recycling treatment of high-temperature liquid steel slag exists at home and abroad, the waste of steel slag heat energy resources is caused because heat energy of the high-temperature liquid steel slag cannot be recycled, or the steel slag heat energy resources are not fully recycled and have poor operability, so that the steel slag recycling method is not attractive and deficient.
SUMMERY OF THE UTILITY MODEL
In order to solve the above disadvantages in the prior art, we have invented a high-temperature liquid steel slag recycling treatment and heat energy recovery device, which can realize recycling treatment of high-temperature liquid steel slag and high-efficiency recovery of steel slag resources, and can realize recovery of heat energy of high-temperature liquid steel slag to produce steam and hot water for utilization.
The utility model adopts a high temperature liquid steel slag resourceful treatment and heat energy recovery device, namely, when a converter (or an electric furnace) discharges slag, after the high temperature liquid steel slag is poured into a slag receiving tank 1 on a slag tank car under the furnace, the slag tank car is driven to a slag treatment span, the slag receiving tank 1 is lifted to the front of a tundish 3 by a double-hook crane 2 and is aligned with the central line of the tundish 3, a crane auxiliary hook is started, the slag receiving tank 1 is slowly tipped over, the high temperature liquid steel slag is poured into the tundish 3, the high temperature liquid steel slag flows out from a launder and freely falls at the mouth of the launder after the flow of the water gap of the tundish 3 is controlled, compressed air produced by an air compressor 7 and sent into a porous high speed air nozzle 4 through a pipeline, and high speed air flow sprayed from the nozzle is immediately granulated into liquid drops with the grain diameter of 0-5mm by the high speed air flow in the falling process, and the self heat is transferred to the high speed air, the temperature of the surrounding air flow is rapidly increased from normal temperature to about 1500 ℃, and meanwhile, the liquid steel slag drops directly transfer heat to the flat plate type waste heat boiler component 17 in a heat radiation mode; in the process that the high-speed air flow heated to about 1500 ℃ moves in the horizontal direction, heat is directly transferred to the flat plate type waste heat boiler assembly 17 (the upper part and the extending part of the slag collecting tank) and the semi-circular arch type boiler assembly 18 in a convection heat transfer mode, and water flowing in the boiler assembly is heated until steam is generated.
After flying a certain distance in the horizontal direction along with high-speed air flow, the granulated high-temperature liquid steel slag droplets dispersedly fall into a coarse slag collecting tank 5 and a fine slag collecting tank 6 below under the influence of gravity, and are cooled and solidified into solid slag particles continuously by atomized water sprayed by an atomized water nozzle 16 arranged on a semicircular arch type tubular boiler component 18 in the falling process, the solid slag particles falling into the coarse slag collecting tank 5 and the fine slag collecting tank 6 heat purified water supplied by a purified water supply pipe 12 in the lower half part of a flat plate type waste heat boiler component 17 tightly attached to the periphery of the tank wall to about 60 ℃ in a heat conduction and heat radiation mode, and the hot water preheated to about 60 ℃ flows from the lower part of the flat plate type waste heat boiler component 17 to the upper part and is heated to about 80 ℃ after reaching the top; the steam flows out of the hot water conveying pipe 13 and enters a lower water inlet pipe of the semicircular arch type tubular boiler assembly 18 through a connecting pipeline, the entering hot water slowly rises, is continuously heated and heated, finally reaches the top of the semicircular arch type tubular boiler assembly 18, the water temperature reaches 100 ℃ and generates steam, the steam enters a steam bag 14 through the connecting pipeline for storage, and then is conveyed into a plant steam low-pressure pipe network through a steam conveying pipe 15 for uniform allocation and use.
Or the hot water flowing out of the hot water conveying pipe 13 is conveyed to a factory steam boiler room to be used as inlet water.
Or the hot water flowing out of the hot water delivery pipe 13 is delivered to the factory and employee bathroom to be directly used as hot water for bathing of the employees.
Solid coarse slag particles which fall into the coarse slag collecting pool 5, are cooled to normal temperature after thermal conversion is completed, a gate at the bottom of the coarse slag collecting pool is opened, the belt magnetic separator 8 is started, the solid slag particles are led out of the slag collecting pool under the action of self gravity and belt traction force, metal iron particles contained in the solid slag particles are separated on the belt magnetic separator 8, and the solid slag particles are returned to a converter of the factory for steelmaking; the slag particles after the metal iron particles are selected are conveyed into a granularity grading screening machine 9 and a packing machine 10, the slag particles are divided into products with different grain sizes, then the products are packed and bagged, and then the bagged products are respectively conveyed to users in different industries by a transport vehicle 11 for utilization.
The fine slag particles falling into the fine slag collecting tank 6 are cooled to normal temperature after heat conversion is completed, the gate at the bottom of the fine slag collecting tank is opened, the belt conveyor 8a is started, the solid slag particles are led out of the slag collecting tank under the action of self gravity and belt traction force, and the solid slag particles are directly conveyed to the packaging machine 10 for packaging and bagging without magnetic separation and screening because of low content of metal iron particles, and then are distributed and utilized by the transport vehicle 11.
Because the flat-plate type waste heat boiler assembly 17 and the semicircular arch type boiler assembly 18 heat energy recovery device which extend upwards from the two sides and the tail part of the slag collecting pool to form the enclosure are adopted, the space tightness of the surrounding space and the top space of the slag collecting pool is better under the premise of ensuring the air flow to be discharged, the high-speed air flow sprayed by the porous high-speed air nozzle 4 generates noise energy about 85dB, and finally the noise is reduced to about 60dB after the high-speed air flow is partially absorbed by the flat-plate type waste heat boiler assembly 17 and the semicircular arch type boiler assembly 18 which are water-cooled by the interlayer, so that the effect of reducing the noise of a working environment is achieved.
Compared with the prior art, the invention not only can realize the resourceful treatment of the high-temperature liquid steel slag and the high-efficiency recovery of the steel slag resource, but also can realize the recovery of the heat energy of the high-temperature liquid steel slag to produce steam and hot water for utilization.
Drawings
FIG. 1 is a schematic view of a high-temperature liquid steel slag recycling and heat recovery apparatus; the device comprises a slag receiving tank 1, a double-hook crane 2, a tundish 3, a porous high-speed air nozzle 4, a slag collecting and collecting tank 5, a fine grain dry granulated slag collecting tank 6, an air compressor 7, a belt magnetic separator 8, a grain size grading sieving machine 9, a packaging machine 10, a transport vehicle 11, a water supply pipe 12, a hot water conveying pipe 13, a steam ladle 14, a steam conveying pipe 15, an atomized water nozzle 16, a flat plate type waste heat boiler component 17 and a semi-circular arch type tubular boiler component 18.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Referring to fig. 1, the present invention provides a recycling treatment and heat energy recovery device for high temperature liquid steel slag, that is, when slag is discharged from a converter (or an electric furnace), after the high temperature liquid steel slag is poured into a slag receiving tank 1 on a slag tank car under the furnace, the slag tank car is opened to a slag treatment bay, the slag receiving tank 1 is lifted by a double hook crane 2 to the front of a tundish 3 and aligned with the central line of the tundish 3, a crane auxiliary hook is started, the slag receiving tank 1 is slowly tipped over, the high temperature liquid steel slag is poured into the tundish 3, the high temperature liquid steel slag flows out from a launder and freely falls at the launder after the flow rate of the high temperature liquid steel slag is controlled by a water gap of the tundish 3, compressed air produced by an air compressor 7 is fed into a porous high speed air nozzle 4 through a pipeline during the falling process, and the high temperature liquid steel slag is immediately granulated into liquid drops with a particle size of 0-5mm by the, the heat of the liquid steel slag is transferred to high-speed air flow in a convection heat transfer mode, so that the temperature of the air flow around the liquid steel slag is rapidly increased from normal temperature to about 1500 ℃, and meanwhile, the liquid steel slag drops directly transfer the heat to the flat plate type waste heat boiler component 17 in a heat radiation mode; in the process that the high-speed air flow heated to about 1500 ℃ moves in the horizontal direction, heat is directly transferred to the flat plate type waste heat boiler assembly 17 (the upper part and the extending part of the slag collecting tank) and the semi-circular arch type boiler assembly 18 in a convection heat transfer mode, and water flowing in the boiler assembly is heated until steam is generated.
After flying a certain distance in the horizontal direction along with high-speed air flow, the granulated high-temperature liquid steel slag droplets dispersedly fall into a coarse slag collecting tank 5 and a fine slag collecting tank 6 below under the influence of gravity, and are cooled and solidified into solid slag particles continuously by atomized water sprayed by an atomized water nozzle 16 arranged on a semicircular arch type tubular boiler component 18 in the falling process, the solid slag particles falling into the coarse slag collecting tank 5 and the fine slag collecting tank 6 heat purified water supplied by a purified water supply pipe 12 in the lower half part of a flat plate type waste heat boiler component 17 tightly attached to the periphery of the tank wall to about 60 ℃ in a heat conduction and heat radiation mode, and the hot water preheated to about 60 ℃ flows from the lower part of the flat plate type waste heat boiler component 17 to the upper part and is heated to about 80 ℃ after reaching the top; the steam flows out of the hot water conveying pipe 13 and enters a lower water inlet pipe of the semicircular arch type tubular boiler assembly 18 through a connecting pipeline, the entering hot water slowly rises, is continuously heated and heated, finally reaches the top of the semicircular arch type tubular boiler assembly 18, the water temperature reaches 100 ℃ and generates steam, the steam enters a steam bag 14 through the connecting pipeline for storage, and then is conveyed into a plant steam low-pressure pipe network through a steam conveying pipe 15 for uniform allocation and use.
Or the hot water flowing out of the hot water conveying pipe 13 is conveyed to a factory steam boiler room to be used as inlet water.
Or the hot water flowing out of the hot water delivery pipe 13 is delivered to the factory and employee bathroom to be directly used as hot water for bathing of the employees.
Solid coarse slag particles which fall into the coarse slag collecting pool 5, are cooled to normal temperature after thermal conversion is completed, a gate at the bottom of the coarse slag collecting pool is opened, the belt magnetic separator 8 is started, the solid slag particles are led out of the slag collecting pool under the action of self gravity and belt traction force, metal iron particles contained in the solid slag particles are separated on the belt magnetic separator 8, and the solid slag particles are returned to a converter of the factory for steelmaking; the slag particles after the metal iron particles are selected out are conveyed into a particle size grading sieving machine 9 and a packing machine 10, the granulated steel slag after magnetic separation is packed and bagged in a particle size grading way, the particle size fraction of 0-5mm is used for building materials, the particle size fraction of 0-3mm is used for sintering raw materials, the particle size fraction of 1-3mm is used for sand blasting grinding materials, the particle size fraction of 3-5mm is used for sewage treatment filtering materials, and then the bagged products are respectively conveyed to users in different industries by a transport vehicle 11 for utilization.
The fine slag particles falling into the fine slag collecting pool 6 are cooled to normal temperature after thermal conversion is completed, a gate at the bottom of the fine slag collecting pool is opened, a belt conveyor 8a is started, the solid slag particles are led out of the slag collecting pool under the action of self gravity and belt traction force, the content of 0-1mm fine slag is low due to metal iron particles, magnetic separation and screening are not needed, the fine slag particles are directly conveyed to a packing machine 10 for packing and bagging, are used for polishing abrasive materials and wear-resistant fillers with higher utilization added values, and are distributed by a transport vehicle 11.
Because the flat-plate type waste heat boiler assembly 17 and the semicircular arch type boiler assembly 18 heat energy recovery device which extend upwards from the two sides and the tail part of the slag collecting pool to form the enclosure are adopted, the space tightness of the surrounding space and the top space of the slag collecting pool is better under the premise of ensuring the air flow to be discharged, the high-speed air flow sprayed by the porous high-speed air nozzle 4 generates noise energy about 85dB, and finally the noise is reduced to about 60dB after the high-speed air flow is partially absorbed by the flat-plate type waste heat boiler assembly 17 and the semicircular arch type boiler assembly 18 which are water-cooled by the interlayer, so that the effect of reducing the noise of a working environment is achieved.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It must be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (5)
1. The utility model provides a high temperature liquid slag resourceful treatment and heat recovery unit, includes connects sediment jar (1), double hook crane (2), tundish (3), porous high-speed air nozzle (4), coarse slag collecting pit (5), fine sediment collecting pit (6), air compressor machine (7), delivery pipe (12), hot water conveying pipe (13), its characterized in that: the lower part of the coarse slag collecting pool (5) is funnel-shaped, and the outlet of the coarse slag collecting pool (5) is provided with a belt magnetic separator (8), a particle size grading screening machine (9) and a packing machine (10) for grading, packing and transporting slag particles; the lower part of the fine slag collecting tank (6) is funnel-shaped, and is provided with a belt conveyor (8a) and a packer (10) for directly packing and transporting fine slag particles; be provided with flat waste heat boiler subassembly (17) and purified water delivery pipe (12) hugging closely coarse slag collecting pit (5) and thin sediment collecting pit (6) inner wall, upwards extend in coarse slag collecting pit (5) and thin sediment collecting pit (6) both sides and afterbody, set up semicircle arch type tubular boiler subassembly at its top, set up a plurality of atomized water nozzles (16) in succession on semicircle arch type tubular boiler subassembly, set up steam package (14) on semicircle arch type tubular boiler subassembly (18), steam conveying pipe (15).
2. The apparatus according to claim 1, wherein the apparatus comprises: a hot water conveying pipe (13) is arranged above the side of the flat plate type waste heat boiler component (17).
3. The apparatus as claimed in claim 1 or 2, wherein the apparatus comprises: the granularity grading sieving machine (9) is used for grading the granularity of the granulated steel slag after magnetic separation, the packing machine (10) is used for packing and bagging the sieved steel slag with different size grades, and the size grade of 0-5mm is used for building materials: the grain size of 0-3mm is used for sintering raw materials; 1-3mm size fraction is used for sand blasting abrasive; the grain size of 3-5mm is used for filtering materials for sewage treatment.
4. The apparatus as claimed in claim 1 or 2, wherein the apparatus comprises: the flat plate type waste heat boiler component (17) is a hollow water-through waste heat boiler component formed by welding a plurality of whole boiler steel plates with the thickness of 10mm, and the waste heat boiler component is tightly attached to the inner wall of the periphery of the slag collecting and collecting pool; the purified water supply pipe (12) supplies purified water from the lower portion of the flat plate type waste heat boiler assembly (17) into the cavity of the assembly.
5. The apparatus as claimed in claim 1 or 2, wherein the apparatus comprises: the semicircular arch type tubular boiler component (18) is formed by welding a plurality of seamless steel pipes for boilers into a semicircular arch; the steam bag (14) is used for storing steam generated by the semicircular arch type tubular boiler component (18); the steam conveying pipe (15) is used for conveying steam in the steam pocket (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921961860.6U CN211420205U (en) | 2019-11-14 | 2019-11-14 | Resourceful treatment and heat recovery device for high-temperature liquid steel slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921961860.6U CN211420205U (en) | 2019-11-14 | 2019-11-14 | Resourceful treatment and heat recovery device for high-temperature liquid steel slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211420205U true CN211420205U (en) | 2020-09-04 |
Family
ID=72246745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921961860.6U Active CN211420205U (en) | 2019-11-14 | 2019-11-14 | Resourceful treatment and heat recovery device for high-temperature liquid steel slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211420205U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112226554A (en) * | 2020-10-26 | 2021-01-15 | 上海驰春节能科技有限公司 | Novel exhaust-heat boiler of high-temperature liquid slag of granulated steel |
-
2019
- 2019-11-14 CN CN201921961860.6U patent/CN211420205U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112226554A (en) * | 2020-10-26 | 2021-01-15 | 上海驰春节能科技有限公司 | Novel exhaust-heat boiler of high-temperature liquid slag of granulated steel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11519043B2 (en) | Roller treatment process and treatment device suitable for total-amount steel slag treatment | |
| CN104988255B (en) | A kind of liquid slag waste heat recovery and the method and apparatus system of tailings ultra micro efflorescence | |
| CN203389707U (en) | Vertical type roller mill for grinding steel slag | |
| CN102766706B (en) | Coal gasification system for waste heat of blast furnace slag | |
| CN103540698B (en) | Steel slag granulating and afterheat recycling device | |
| CN102643936A (en) | Integrated system for granulation, modification and sensible heat recovery of steel slag and process method | |
| CN110643758A (en) | Resourceful treatment and heat energy recovery method and device for high-temperature liquid steel slag | |
| CN104404179A (en) | Liquid high temperature material waste heat recovery unit | |
| CN211420205U (en) | Resourceful treatment and heat recovery device for high-temperature liquid steel slag | |
| CN202359129U (en) | Recycling treatment and heat energy recovery device for high-temperature liquid steel slag | |
| CN102766707B (en) | Blast furnace slag residual heat utilization system based on coal gasification principle | |
| CN105463140B (en) | A kind of high-temperature slag handles recovery system | |
| CN106482530B (en) | It is a kind of to be sintered mining multipot type heat recovering device and sensible heat recovery method | |
| WO2021223543A1 (en) | Efficient treatment method and apparatus for multiphase steel slag | |
| CN104109742B (en) | A kind of injection solid impurity particle hits broken melting slag waste heat recovery system | |
| CN203549812U (en) | Pressurized ash residue treatment system | |
| CN205851016U (en) | A kind of ball mill steel ball adding device | |
| CN203559060U (en) | Steel slag granulating device | |
| Liu et al. | Waste heat recovery from high-temperature blast furnace slag particles | |
| CN115875994A (en) | Calcium carbide granulation waste heat recovery system, process and total absorption heat collection calculation method | |
| CN201785404U (en) | Recovering system for high-temperate molten slag | |
| CN103255244A (en) | Method and device for resourceful treatment and heat recovery of type [A] high temperature liquid steel slag | |
| CN103072800A (en) | On-line dust collection and extraction device and accessory block powder on-line separating system applying same | |
| CN206799705U (en) | A kind of low energy consumption environment protection-type magnetizing roast mine tailing cooling treatment system | |
| CN205974572U (en) | Thick grey collection device of converter dry process dust removal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |