CN111748664B - Blast furnace ironmaking slag heat utilization system - Google Patents
Blast furnace ironmaking slag heat utilization system Download PDFInfo
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- CN111748664B CN111748664B CN202010610073.8A CN202010610073A CN111748664B CN 111748664 B CN111748664 B CN 111748664B CN 202010610073 A CN202010610073 A CN 202010610073A CN 111748664 B CN111748664 B CN 111748664B
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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
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
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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
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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
- C21B2400/05—Apparatus features
- C21B2400/066—Receptacle features where the slag is treated
- C21B2400/068—Receptacle features where the slag is treated with a sealed or controlled environment
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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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- 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)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a blast furnace ironmaking slag heat utilization system which comprises an operation box and a water storage box, wherein a pump body is fixedly installed at the bottom of an inner cavity of the water storage box, an output end of the pump body is fixedly connected with a water inlet water distribution pipe through a pipeline, and the right side of the water inlet water distribution pipe is fixedly connected to the left side of the outer surface of the operation box. According to the invention, a large amount of high-temperature slag is filled into the operation box through the feed inlet, at the moment, the pump body is controlled to work, so that water flow flows to the water inlet shunt pipe along the pipeline under the driving action of the pump body, the water inlet shunt pipe shunts the water flow to the heat exchange pipe, and the water body passes through the heat exchange pipe, so that the heat emitted by the slag is quickly absorbed, the water body is quickly heated, and the high-temperature water body in the heat exchange pipe is driven to flow through the main water outlet pipe through the continuous work of the pump body and then is led to the home of a resident user from the heating pipeline.
Description
Technical Field
The invention relates to the technical field of heat utilization, in particular to a blast furnace ironmaking slag heat utilization system.
Background
Dozens of large-scale steel plants are located in China, a large amount of slag is generated in the steel making process of the steel plants every year, the slag can carry high heat when being discharged, and the slag is transported after being cooled by self by the steel plants, so that great waste of the heat of the slag is caused.
Disclosure of Invention
The invention aims to provide a blast furnace ironmaking slag heat utilization system, which has the advantage of heat recovery and solves the problem of great waste of slag heat caused by a traditional steel plant slag treatment mode.
In order to achieve the purpose, the invention provides the following technical scheme: a blast furnace ironmaking slag heat utilization system comprises an operation box and a water storage box, wherein a pump body is fixedly arranged at the bottom of an inner cavity of the water storage box, an output end of the pump body is fixedly connected with a water inlet shunt pipe through a pipeline, the right side of the water inlet shunt pipe is fixedly connected to the left side of the outer surface of the operation box, the right side of the water inlet shunt pipe is fixedly connected with a heat exchange pipe, the right side of the heat exchange pipe is fixedly connected with a total water outlet pipe, the left side of the total water outlet pipe is fixedly connected to the right side of the outer surface of the operation box, the right side of the total water outlet pipe is fixedly connected with a heating pipeline, the upper end of the left side of the inner cavity of the operation box is fixedly connected with a temperature sensor, a filter box is fixedly arranged at the left side of the top of the operation box, an input end of the filter box is fixedly connected to the left side of the top of the operation box, a filter screen is fixedly connected with a water baffle through a support, the bin outlet has been seted up to the bottom of control box, the bottom fixedly connected with delivery box of bin outlet, and the lower extreme threaded connection on delivery box bottom right side has sealed lid, support fixedly connected with conveying motor is passed through on the right side of delivery box surface, conveying motor's output fixedly connected with carries the axle, and carries the both ends of an outer surface all through bearing swing joint in the both sides on delivery box surface, the outer fixed surface of carrying the axle is connected with spiral fan blade.
Preferably, the periphery of the outer surface of the operation box is fixedly connected with fixing blocks, and the bottom of each fixing block is fixedly connected with a supporting leg.
Preferably, the top of the operation box is provided with a feed inlet, and the upper end of the feed inlet is in threaded connection with a threaded cover.
Preferably, the upper end of the water storage tank is provided with a water injection port, and the upper end of the water injection port is in threaded connection with a dust cover.
Preferably, the front surface of the water storage tank is provided with an observation port, and the inner side of the observation port is provided with transparent toughened glass.
Preferably, the number of the heat exchange tubes is four, and the heat exchange tubes are arranged in a rectangular shape inside the operation box.
Preferably, the upper end on control box surface right side has the air-blower through support fixed mounting, the output fixedly connected with ventilation pipe of air-blower, and the surface fixed connection of ventilation pipe is in the left side of control box inner chamber.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention fills a large amount of high-temperature slag into the operation box through the feed inlet, controls the work of the pump body at the moment, leads water flow to the water inlet shunt pipe along the pipeline under the driving action of the pump body, leads the water inlet shunt pipe to shunt the water flow to the heat exchange pipe, because the temperature of the slag is higher, when the water body passes through the heat exchange tube, the heat emitted by the slag can be quickly absorbed, so that the water body is quickly heated, the pump body continuously works to drive the high-temperature water in the heat exchange pipe to flow through the main water outlet pipe and then to be led to the home of a resident user from the heating pipeline, can supply heat to residents in cold winter and can wash by using hot water, thereby reducing the heat consumption of the slag, the electric power consumption caused by heating in the user house is reduced, more energy is saved, the environment is protected, and the problem of great waste of slag heat caused by a traditional steel plant slag treatment mode is solved.
2. According to the invention, the temperature inside the operation box is monitored through the temperature sensor, when the temperature inside the operation box is lower, the pump body stops working, the working of the air blower drives the external air flow to flow into the operation box, the slag is cooled, the slag is convenient to transport later, the dust of the gas discharged under the action of the air blower can be filtered through the arrangement of the filter box, the pollution to the air is reduced, the conveying shaft is driven to rotate through the working of the conveying motor, the rotation of the conveying shaft can drive the rotation of the spiral fan blades, and the low-temperature slag can be rapidly discharged.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an external view of FIG. 1;
FIG. 3 is a schematic top view of a heat exchange tube of the present invention.
In the figure: 1. supporting legs; 2. a delivery box; 3. a conveying motor; 4. a viewing port; 5. a pump body; 6. a water storage tank; 7. a water injection port; 8. a fixed block; 9. a water inlet and distribution pipe; 10. a heat exchange tube; 11. a temperature sensor; 12. a filter box; 13. a filter screen; 14. a water baffle; 15. a feed inlet; 16. a ventilation pipe; 17. a blower; 18. a main water outlet pipe; 19. a heating pipe; 20. a discharge outlet; 21. a conveying shaft; 22. a helical fan blade; 23. and an operation box.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description herein, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings to facilitate the description of the patent and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the patent. In the description of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can be, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Referring to fig. 1-3, a blast furnace ironmaking slag heat utilization system comprises an operation box 23 and a water storage box 6, wherein the upper end of the water storage box 6 is provided with a water injection port 7, the upper end of the water injection port 7 is in threaded connection with a dust cap, the front surface of the water storage box 6 is provided with an observation port 4, the inner side of the observation port 4 is provided with transparent toughened glass, the bottom of the inner cavity of the water storage box 6 is fixedly provided with a pump body 5, the output end of the pump body 5 is fixedly connected with a water inlet shunt pipe 9 through a pipeline, the right side of the water inlet shunt pipe 9 is fixedly connected with the left side of the outer surface of the operation box 23, the right side of the water inlet shunt pipe 9 is fixedly connected with four heat exchange pipes 10, the heat exchange pipes 10 are arranged in a rectangular shape inside the operation box 23, the right side of the heat exchange pipes 10 is fixedly connected with a main water outlet pipe 18, and the left side of the main water outlet pipe 18 is fixedly connected with the right side of the outer surface of the operation box 23, a heating pipeline 19 is fixedly connected to the right side of the main water outlet pipe 18, fixed blocks 8 are fixedly connected to the periphery of the outer surface of the operation box 23, supporting legs 1 are fixedly connected to the bottom of the fixed blocks 8, a feed inlet 15 is formed in the top of the operation box 23, a threaded cover is connected to the upper end of the feed inlet 15 in a threaded manner, an air blower 17 is fixedly mounted at the upper end of the right side of the outer surface of the operation box 23 through a support, a ventilation pipe 16 is fixedly connected to the output end of the air blower 17, the outer surface of the ventilation pipe 16 is fixedly connected to the left side of the inner cavity of the operation box 23, a temperature sensor 11 is fixedly connected to the upper end of the left side of the inner cavity of the operation box 23, a filter box 12 is fixedly mounted at the left side of the top of the operation box 23, a filter screen 13 is fixedly connected to the inner cavity of the filter box 12, and a water baffle 14 is fixedly connected to the top of the output end of the filter box 12 through a support, the bottom of the operation box 23 is provided with a discharge opening 20, the bottom of the discharge opening 20 is fixedly connected with the conveying box 2, the lower end on the right side of the bottom of the conveying box 2 is in threaded connection with a sealing cover, the right side of the outer surface of the conveying box 2 is fixedly connected with the conveying motor 3 through a support, the output end of the conveying motor 3 is fixedly connected with the conveying shaft 21, both ends of the outer surface of the conveying shaft 21 are movably connected with both sides of the surface of the conveying box 2 through bearings, the outer surface of the conveying shaft 21 is fixedly connected with the spiral fan blades 22, the temperature inside of the operation box 23 is monitored through the temperature sensor 11, when the temperature inside the operation box 23 is lower, the pump body 5 stops working, the outside air flow is driven to the inside of the operation box 23 through the working of the air blower 17, the slag is cooled, the slag is convenient to transport later, through the arrangement of the filter box 12, the dust filtration can be carried out on the gas discharged under the action of the air blower 17, the pollution to the air is reduced, the conveying shaft 21 is driven to rotate through the work of the conveying motor 3, the spiral fan blades 22 can be driven to rotate through the rotation of the conveying shaft 21, the low-temperature slag can be quickly discharged, a large amount of high-temperature slag is filled into the operation box 23 through the feed inlet 15, at the moment, the water flow is driven by the pump body 5 to flow along the pipeline to the water inlet water distribution pipe 9, the water inlet water distribution pipe 9 distributes the water flow to the heat exchange pipe 10, the temperature of the slag is high, when the water body passes through the heat exchange pipe 10, the heat emitted by the slag can be quickly absorbed, the water body is quickly heated, the high-temperature water body inside the heat exchange pipe 10 is driven by the continuous work of the pump body 5 to flow through the main water outlet pipe 18 and then is led to the home of a resident user from the heating pipeline 19, and the hot water can be used for washing and rinsing when the resident home is heated in cold winter, when having reduced slag heat consumption, reduced the power consumption that causes because of the heating in the user family, more energy-concerving and environment-protective has solved the problem that traditional steel plant slag treatment methods caused the slag heat very big waste.
All the components in the invention are universal standard components or components known by those skilled in the art, the structure and principle of the components can be known by technical manuals or conventional experimental methods, meanwhile, the standard components used in the application document can be purchased from the market, the components in the application document can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each component adopts the conventional means of mature bolts, rivets, welding and the like in the prior art, the machinery, the components and equipment adopt the conventional models in the prior art, the control mode is automatically controlled through a controller, the control circuit of the controller can be realized through simple programming of those skilled in the art, the components belong to the common knowledge in the art, and the application document is mainly used for protecting mechanical devices, so the detailed explanation of the control mode and circuit connection is omitted, no specific description will be made herein.
When the device is used, a large amount of high-temperature slag is filled into the operation box 23 through the feed inlet 15, at the moment, water flow is driven by the pump body 5 to flow along the pipeline to the water inlet shunt pipe 9 through controlling the work of the pump body 5, the water inlet shunt pipe 9 shunts the water flow to the heat exchange pipe 10, the temperature of the slag is high, when the water body passes through the heat exchange pipe 10, the heat emitted by the slag can be quickly absorbed, so that the water body is quickly heated, the high-temperature water body in the heat exchange pipe 10 is driven by the continuous work of the pump body 5 to flow through the main water outlet pipe 18 and then is led to the home of a resident user from the heating pipeline 19, the device can heat the home of the resident in cold winter and can use hot water for washing and rinsing, the heat consumption of the slag is reduced, the power consumption caused by heating in the home of the user is reduced, and the device is more energy-saving and environment-friendly, monitor the temperature of control box 23 inside through temperature sensor 11, when the temperature of control box 23 inside is lower, the pump body 5 stop work, work through air-blower 17 drives inside external air current flow direction control box 23, cool down the slag, be convenient for later transport the slag, setting through rose box 12, can carry out the dust to air-blower 17 effect exhaust gas down and filter, the pollution to the air has been reduced, it is rotatory to drive transport axle 21 through the work of carrying motor 3, it is rotatory to carry axle 21 rotation to drive spiral fan blade 22, can carry out quick discharge with microthermal slag.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A blast furnace ironmaking slag heat utilization system comprises an operation box (23) and a water storage box (6), and is characterized in that: the operation box (23) is of a vertical structure, a pump body (5) is fixedly installed at the bottom of an inner cavity of the water storage box (6), an output end of the pump body (5) is fixedly connected with a water inlet water distribution pipe (9) through a pipeline, the right side of the water inlet water distribution pipe (9) is fixedly connected to the left side of the outer surface of the operation box (23), a right side of the water inlet water distribution pipe (9) is fixedly connected with a heat exchange pipe (10), the right side of the heat exchange pipe (10) is fixedly connected with a total outlet pipe (18), the left side of the total outlet pipe (18) is fixedly connected to the right side of the outer surface of the operation box (23), a right side of the total outlet pipe (18) is fixedly connected with a heating pipeline (19), the left upper end of the inner cavity of the operation box (23) is fixedly connected with a temperature sensor (11), a filter box (12) is fixedly installed on the left side of the top of the operation box (23), and an input end of the filter box (12) is fixedly connected to the left side of the top of the operation box (23), the slag-discharging device is characterized in that a filter screen (13) is fixedly connected to an inner cavity of the filter box (12), a water baffle (14) is fixedly connected to the top of an output end of the filter box (12) through a support, a discharging hole (20) is formed in the bottom of the operation box (23), molten slag falls to the discharging hole from a feeding hole, a conveying box (2) is fixedly connected to the bottom of the discharging hole (20), a sealing cover is connected to the lower end of the right side of the bottom of the conveying box (2) in a threaded manner, a conveying motor (3) is fixedly connected to the right side of the outer surface of the conveying box (2) through the support, a conveying shaft (21) is fixedly connected to the output end of the conveying motor (3), two ends of the outer surface of the conveying shaft (21) are movably connected to two sides of the surface of the conveying box (2) through bearings, and spiral blades (22) are fixedly connected to the outer surface of the conveying shaft (21); the number of the heat exchange tubes (10) is four, the heat exchange tubes (10) are arranged in the operation box (23) in a rectangular shape, and the four heat exchange tubes are connected in parallel between the water inlet water distribution tube and the main water outlet tube; the upper end on control box (23) surface right side has air-blower (17) through support fixed mounting, the output fixedly connected with ventilation pipe (16) of air-blower (17), and the surface fixed connection of ventilation pipe (16) is in the left side of control box (23) inner chamber.
2. The blast furnace ironmaking slag heat utilization system according to claim 1, characterized in that: all fixedly connected with fixed block (8) all around of control box (23) surface, the bottom fixedly connected with supporting leg (1) of fixed block (8).
3. The blast furnace ironmaking slag heat utilization system according to claim 1, characterized in that: a feed port (15) is formed in the top of the operation box (23), and a threaded cover is connected to the upper end of the feed port (15) in a threaded mode.
4. The blast furnace ironmaking slag heat utilization system according to claim 1, characterized in that: the upper end of the water storage tank (6) is provided with a water injection port (7), and the upper end of the water injection port (7) is in threaded connection with a dust cover.
5. The blast furnace ironmaking slag heat utilization system according to claim 1, characterized in that: an observation port (4) is formed in the front surface of the water storage tank (6), and transparent toughened glass is arranged on the inner side of the observation port (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010610073.8A CN111748664B (en) | 2020-06-30 | 2020-06-30 | Blast furnace ironmaking slag heat utilization system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010610073.8A CN111748664B (en) | 2020-06-30 | 2020-06-30 | Blast furnace ironmaking slag heat utilization system |
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| CN111748664A CN111748664A (en) | 2020-10-09 |
| CN111748664B true CN111748664B (en) | 2022-09-23 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113008045A (en) * | 2021-02-23 | 2021-06-22 | 常州机电职业技术学院 | Heat recovery system and heat recovery method for metal smelting furnace slag |
| CN113203296B (en) * | 2021-04-26 | 2023-11-10 | 辽宁科技大学 | Online monitoring method for flue air leakage of steel rolling heating furnace |
| CN113549716A (en) * | 2021-07-29 | 2021-10-26 | 马亮 | Recycled steel production device |
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| CN209512534U (en) * | 2018-12-14 | 2019-10-18 | 南通观音山环保热电有限公司 | A kind of afterheat of slags recycle device |
| CN210861068U (en) * | 2019-08-19 | 2020-06-26 | 宁波市镇海云星环保节能有限公司 | Fluidized bed furnace slag heat recovery device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102304594A (en) * | 2011-09-29 | 2012-01-04 | 魏明 | Slag-pot-movable water quenching system utilizing excess heat of molten slag based on water quenching steam method |
| CN102392085A (en) * | 2011-11-21 | 2012-03-28 | 济南钢铁股份有限公司 | Blast furnace slag waste heat recycling system |
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