CN215103348U - Blast furnace slag waste heat recovery system - Google Patents
Blast furnace slag waste heat recovery system Download PDFInfo
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- CN215103348U CN215103348U CN202120489389.6U CN202120489389U CN215103348U CN 215103348 U CN215103348 U CN 215103348U CN 202120489389 U CN202120489389 U CN 202120489389U CN 215103348 U CN215103348 U CN 215103348U
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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
- Y02P10/20—Recycling
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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 provides a blast furnace slag waste heat recovery system, which comprises a slag runner, a heat exchange pipe, a heat carrier and a valve, wherein the slag runner is used for guiding the liquid blast furnace slag; the heat exchange pipe is arranged in the slag ditch, and at least one part of the heat exchange pipe is arranged below the liquid level of the liquid blast furnace slag so as to transfer the heat of the liquid blast furnace slag to the interior of the heat exchange pipe; the heat carrier circulates along the interior of the heat exchange tube so as to take away heat transferred from the liquid blast furnace slag to the interior of the heat exchange tube; the two valves are respectively arranged at two ends of the heat exchange tube to control the circulation of the heat carrier in the heat exchange tube. This recovery system carries out the heat transfer through the heat exchange tube, with the heat transfer of the outside liquid blast furnace sediment of heat exchange tube to the inside heat carrier of heat exchange tube, the heat carrier circulates in the heat exchange tube inside simultaneously, takes away the heat, can effectively utilize the heat of liquid blast furnace sediment, reduces the heat energy loss, improves the reuse rate of heat energy.
Description
Technical Field
The utility model belongs to the technical field of waste heat recovery utilizes, concretely relates to blast furnace slag waste heat recovery system.
Background
The temperature of the molten iron in the blast furnace is usually 1480-1500 ℃, the temperature of the molten iron is measured in each furnace, the temperature of the slag is basically not measured, and the fact that the temperature of the slag in the same furnace is higher than the temperature of the molten iron is verified by ironmaking. In the prior art, high-temperature slag is flushed into water slag by high-pressure water when flowing through the tail end of a slag runner, and the heat of a water slag pool cannot be recovered, so that the sensible heat of the slag is wasted.
Therefore, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the condition of the waste of the sensible heat of the blast furnace slag in the prior art and improving the recycling efficiency of heat.
In order to achieve the above object, the present invention provides the following technical solutions:
a blast furnace slag waste heat recovery system, the recovery system comprising:
the slag runner is used for guiding the liquid blast furnace slag;
the heat exchange pipe is arranged inside the slag runner, and at least one part of the heat exchange pipe is arranged below the liquid level of the liquid blast furnace slag so as to transfer the heat of the liquid blast furnace slag to the inside of the heat exchange pipe;
the heat carrier circulates along the interior of the heat exchange tube so as to take away heat transferred from the liquid blast furnace slag to the interior of the heat exchange tube;
and the two valves are respectively arranged at the two ends of the heat exchange tube so as to control the circulation of the heat carrier inside the heat exchange tube.
Preferably, the heat exchange tube is arranged on the inner wall of the slag runner and extends along the length direction of the slag runner.
In the above blast furnace slag waste heat recovery system, preferably, the heat exchange tube extends in a serpentine or S-shaped manner, and the lower half part of the heat exchange tube in the depth direction of the slag runner is positioned below the liquid level of the liquid blast furnace slag;
wherein, the lowest distance of the heat exchange tube is away from the bottom of the slag runner by a certain distance.
Preferably, the inner wall of the slag runner is provided with a mounting bracket for supporting the heat exchange tube.
Preferably, the slag runner is provided with a runner cover plate.
Preferably, the heat carrier is tap water, one end of the heat exchange tube is connected with a water supply device, and the other end of the heat exchange tube is connected with the water collecting tank.
Preferably, the heat-insulating layer is arranged outside the water collecting tank.
Preferably, the recovery system further comprises a temperature measuring device for detecting the temperature of the heat carrier in the heat exchange pipe.
Preferably, the blast furnace slag waste heat recovery system further includes: and the controller is electrically connected with the temperature measuring device and the valve so as to control the valve based on the temperature of the heat carrier detected by the temperature measuring device.
In the above blast furnace slag waste heat recovery system, preferably, the temperature measuring device is a temperature sensor;
the valve is an electromagnetic valve.
Has the advantages that: the utility model transfers heat through the heat exchange tube, transfers the heat of the liquid blast furnace slag outside the heat exchange tube to the heat carrier inside the heat exchange tube, and meanwhile, the heat carrier circulates inside the heat exchange tube to take away the heat, thereby effectively utilizing the heat of the liquid blast furnace slag, reducing the heat energy loss and improving the repeated utilization rate of the heat energy; the heat carrier can be tap water, the heated tap water is used for preparing steam, and the cost of the steam prepared by the method is greatly reduced compared with the cost of preparing the tap water into the steam from the normal temperature state; steam wide application in sintering production can improve sintering output, in addition, to the blast furnace dust removal ash, when appearing putting the ash difficulty, leads to steam and is favorable to putting the ash unobstructed, and steam can also be used to get warm winter.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention. Wherein:
fig. 1 is a schematic view of a cross section of a slag runner in a recycling system according to an embodiment of the present invention.
FIG. 2 is a schematic view of an assembly of a heat exchange tube and a slag runner in a recycling system according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a heat exchange tube and a slag runner in a recycling system according to an embodiment of the present invention.
Illustration of the drawings: 1. a slag runner; 2. a heat exchange pipe; 3. mounting a bracket; 4. and (4) a valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
In the description of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense, and may be, for example, either fixed or detachable; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
As shown in fig. 1-3, the utility model provides a blast furnace slag waste heat recovery system, which comprises a slag runner 1, a heat exchange tube 2, a heat carrier and a valve 4, wherein the slag runner 1 is used for guiding the flow of liquid blast furnace slag; the heat exchange tube 2 is arranged in the slag runner 1, and at least one part of the heat exchange tube 2 is arranged below the liquid level of the liquid blast furnace slag so as to transfer the heat of the liquid blast furnace slag to the interior of the heat exchange tube 2; the heat carrier circulates along the interior of the heat exchange tube 2 so as to take away the heat transferred from the liquid blast furnace slag to the interior of the heat exchange tube 2; the two valves 4 are respectively arranged at two ends of the heat exchange tube 2 to control the circulation of the heat carrier in the heat exchange tube 2. This recovery system carries out the heat transfer through heat exchange tube 2, with the heat transfer of the liquid blast furnace sediment of heat exchange tube 2 outside to the heat carrier of heat exchange tube 2 inside, the heat carrier circulates in heat exchange tube 2 inside simultaneously, takes away the heat, can effectively utilize the heat of liquid blast furnace sediment, reduces the heat energy loss, improves the reuse rate of heat energy.
Wherein, at least one part of the heat exchange tube 2 is arranged below the liquid level of the liquid blast furnace slag to improve the efficiency of transferring the heat in the liquid blast furnace slag to the heat carrier in the heat exchange tube 2. It should be understood that the above description is only exemplary, and the embodiments of the present invention are not limited thereto.
In another embodiment of the present invention, the pipe is disposed on the inner wall of the slag runner and extends along the length direction of the slag runner, the heat exchange pipe 2 extends along the length direction of the slag runner 1, and the two ends of the heat exchange pipe 2 extend outwards from the slag runner 1, so that the heat carrier flows in or out. When the blast furnace is discharged, the liquid metal iron and the blast furnace slag are separated by the slag-iron separator in front of the blast furnace, molten iron flows to the ladle through the iron runner, the blast furnace slag flows to the slag flushing pool through the slag runner 1, the specific gravity of the liquid metal iron is far greater than that of the blast furnace slag because the slag contains a small amount of liquid metal iron, and the small amount of liquid metal iron contained in the blast furnace slag can flow to the slag flushing pool along the bottom of the slag runner 1. Therefore, the heat exchange tube 2 is arranged on the inner wall of the slag runner 1 instead of the bottom of the slag runner 1, so that the liquid metal iron flows along the bottom of the slag runner 1 to avoid explosion caused by burning the heat exchange tube 2. It should be understood that the above description is only exemplary, and the embodiments of the present invention are not limited thereto.
In this embodiment, the heat exchange tube 2 extends in a serpentine shape or an S-shape, and the lower half part of the heat exchange tube 2 in the depth direction of the slag runner 1 is disposed below the liquid level of the liquid blast furnace slag, wherein the lowest part of the heat exchange tube is at a certain distance from the bottom of the slag runner, and the distance from the lowest part of the heat exchange tube to the bottom of the slag runner is determined according to the content of liquid metal iron contained in the blast furnace slag, so as to ensure that the heat exchange tube is not in direct contact with the liquid metal iron.
Besides, the heat exchange tubes 2 extend in a snake shape or an S shape to prolong the heating time of the heat carrier in the slag runner 1 and improve the temperature rise amplitude of the internal heat carrier.
Further, the number of the heat exchange tubes 2 is two, and the two heat exchange tubes 2 are respectively arranged on the inner walls of two sides of the slag runner 1. Or, the number of the heat exchange tubes 2 is 1, one part of the heat exchange tubes 2 is arranged on the inner wall of one side of the slag runner 1, and the other part of the heat exchange tubes 2 is bent at one end of the slag runner 1 and is arranged on the inner wall of the other side of the slag runner 1 after being bent.
In this embodiment, the inner wall of the slag runner 1 is provided with a mounting bracket 3 to support the heat exchange pipe 2. The heat exchange tube 2 is fixed on the inner wall of the slag runner 1 through the mounting bracket 3, so that the stability of the heat exchange tube 2 in the heat transfer process is ensured.
The mounting bracket 3 is a pipe hoop (or hoop member), as shown in fig. 1, one end of the pipe hoop is bent to form a semicircular structure corresponding to the heat exchange pipe 2, the other end of the pipe hoop is inserted into the inner wall of the slag runner 1, and the heat exchange pipe is limited by the semicircular structure and the inner wall of the slag runner; the pipe hoop has a plurality ofly, and a plurality of hoop evenly distributed is on the heat exchange tube. Preferably, the hoop member is made of a refractory material, such as a crucible material. It should be understood that the above description is only exemplary, and the embodiments of the present invention are not limited thereto.
In another embodiment of the utility model, can set up the height adjusting mechanism who corresponds installing support 3 inside the slag runner 1 to carry out heat exchange tube 2 altitude mixture control according to the content of the inside liquid metal iron of liquid blast furnace slag, so that heat exchange tube 2 breaks away from liquid metal iron, thereby guarantees heat exchange tube 2's life.
Further, installing support 3 is through plug connection on the installation piece, and 1 last edges of cinder groove are equipped with adjusting bolt through the otic placode, and adjusting bolt extends to 1 bottoms of cinder groove along the cinder groove inner wall, and terminal threaded connection is on the installation piece, and rotating adjusting bolt slides along the cinder groove inner wall in order to drive the installation piece to adjust heat exchange tube 2 height relative with 1 bottoms of cinder groove.
Wherein, the installing support is connected at the highest position of the heat exchange tube 2 to avoid blast furnace slag from burning and melting the bolt, and prolong the service life of the bolt. Of course, it may be preferable that the adjusting bolt is made of crucible material to improve the heat resistance of the adjusting bolt. It should be understood that the above description is only exemplary, and the embodiments of the present invention are not limited thereto.
In the embodiment of the utility model, the heat exchange tube 2 is a metal tube, for example, the heat exchange tube 2 is a steel tube, a copper tube, etc., the metal has higher melting point and heat conductivity, which can ensure that the metal is not easy to break in the heat exchange process, and simultaneously, the heat of the liquid blast furnace slag is quickly conducted to the heat carrier; taking the heat exchange tube 2 as a steel tube as an example, the outer circumference of the heat exchange tube 2 is 42mm, and the wall thickness thereof is 4 mm. It should be understood that the above description is only exemplary, and the embodiments of the present invention are not limited thereto.
In another embodiment of the present invention, the slag runner 1 is provided with a runner cover plate, when the liquid blast furnace slag flows through the slag runner 1, the valve 4 is opened to make the heat carrier flow in the heat exchange tube 2, the heat exchange tube 2 is serpentine or S-shaped, the lower half part of the heat exchange tube is in contact with the liquid blast furnace slag to form conduction heat transfer, and the upper part of the heat exchange tube 2 is not in contact with the liquid blast furnace slag to form radiation heat transfer; the slag runner 1 is tightly sealed by a heat-preservation type runner cover plate, so that the reduction speed of the temperature of the liquid blast furnace slag is reduced, and the reduction speed of the liquid blast furnace slag is prevented from being high; in addition, the liquid blast furnace slag is fast in reduction speed, so that the slag runner 1 is easily solidified and stuck by the liquid blast furnace slag, the slag runner needs to be cleaned after slag is discharged from each furnace, the heat insulation effect can be improved by arranging the groove cover plate, so that the slag in the slag runner 1 is little after the liquid blast furnace slag is discharged, the slag does not need to be cleaned, the slag can be melted when the slag is discharged next time, self-cleaning is realized, and the labor intensity of operators is reduced. It should be understood that the above description is only exemplary, and the embodiments of the present invention are not limited thereto.
In another embodiment of the present invention, the heat carrier is tap water, one end of the heat exchange tube 2 is connected to the water supply device, and the other end is connected to the water collection tank. The heated tap water is stored in the water collecting tank and can be used for making steam, and the cost of the steam made by the method is greatly reduced compared with the cost of making the tap water into steam from a normal temperature state; the steam is widely applied to sintering production, can improve sintering output, and in addition, when the dust is difficult to discharge in the blast furnace dust removal ash, the steam is led to be favorable for discharging the ash smoothly, and the steam can also be used for heating in winter. In this embodiment, the outside of the water collection tank is provided with a heat preservation layer. The heated tap water is insulated through the insulating layer, so that heat loss is reduced, and the storage time of the heated tap water is prolonged. It should be understood that the above description is only exemplary, and the embodiments of the present invention are not limited thereto.
In another embodiment of the present invention, the recycling system further comprises a temperature measuring device to detect the temperature of the heat carrier inside the heat exchanging pipe 2.
When tap water passes through the heat exchange tubes 2 of the slag runner 1, the tap water is heated, and the temperature of the heated tap water can be raised to a small degree according to factors such as the length of the slag runner 1, the temperature of slag, the heat transfer time, the depth of the heat exchange tubes 2 immersed in the slag and the like. When the red hot liquid blast furnace slag flows through the slag runner 1, the valves 4 (i.e., the water inlet valve and the water outlet valve) at the two ends of the heat exchange tube 2 are opened, the temperature of the heated water is measured by the temperature measuring device, if the temperature of the heated water is lower than the preset temperature, the water inlet valve and the water outlet valve are temporarily closed, and the tap water in the heat exchange tube 2 is in a static heating state until the temperature is raised to the preset temperature, specifically, the preset temperature can be 80 ℃.
In another embodiment of the present invention, the recycling system further comprises: and the controller is electrically connected with the temperature measuring device and the valve 4 so as to control the valve 4 based on the temperature of the heat carrier detected by the temperature measuring device. Wherein, the temperature measuring device is a temperature sensor; the valve 4 is a solenoid valve.
The valve 4 is automatically controlled by the controller, so that the automation degree of the recovery system is improved, and the labor intensity of operators is reduced; wherein, the controller can be a singlechip or a PLC controller.
Specifically, the water temperature is measured through the temperature sensor, if the water temperature is lower than 80 ℃, the valves 4 at the two ends can be closed after the heat exchange tube 2 is filled with water, tap water is statically heated in the heat exchange tube 2 until the water temperature reaches 80 ℃, the controller opens the valves 4 at the two ends of the heat exchange tube 2, hot water flows into the water collecting tank, and heated water can be extracted from the water collecting tank during steam preparation.
In this embodiment, the temperature sensor can be disposed at the water outlet of the heat exchange tube 2 to directly measure the heated water temperature. When the temperature of the water outlet of the heat exchange pipe 2 is measured, the temperature sensor can be a temperature measuring gun which is provided with a display screen, and an operator can visually read the heated water temperature. It should be understood that the above description is only exemplary, and the embodiments of the present invention are not limited thereto.
To sum up, the utility model provides a blast furnace slag waste heat recovery system, including slag runner 1, heat exchange tube 2, heat carrier and valve 4, heat exchange tube 2 extends along the length direction of slag runner 1 to be snakelike or the S-shaped extension, heat exchange tube 2 is arranged in below the liquid level of liquid blast furnace slag in the 1 ascending lower half part of the depth direction of slag runner. The heat exchange tube 2 extends in a snake shape or an S shape to prolong the heating time of the heat carrier in the slag ditch 1 and improve the temperature lifting amplitude of the internal heat carrier. Since the liquid blast furnace slag contains a small amount of liquid metal iron, and the specific gravity of the liquid metal iron is greater than that of the slag, the heat exchange tube 2 is arranged on the inner wall of the slag runner 1 instead of the bottom of the slag runner 1, so that explosion caused by the fact that the liquid metal iron flows along the bottom of the slag runner 1 to burn the heat exchange tube 2 is avoided.
The recovery system can improve the recovery rate of the heat of the blast furnace slag, greatly saves energy, reduces production cost, and is characterized in that: q is c × m × Δ t. The flow rate of tap water is related to the water pressure, and there are generally three types: the flow rate was 1m/s when the water pressure was 0.6MPa, 0.75m/s when the water pressure was 0.5MPa, and 0.66m/s when the water pressure was 0.4MPa, taking the median 0.75m/s in the calculation.
When the blast furnace slag passes through the slag runner 1 for 1 hour, the amount of water m flowing through the heat exchange tubes 2 on both sides of the slag runner 1 per hour, the water velocity, the cross-sectional area of the heat exchange tubes 2, the water density, is 0.75 × 3600 × 3.14 ÷ 4 × (42-4 × 2) × (42-4 × 2) ÷ 1000 × 2 × 1 ÷ 4.9t, 4900kg (water c is 4.2kJ/(kg ℃.). then, the tap water at normal temperature (temperature 20 ℃) is heated to 80 ℃, Δ t is 60 ℃, and the converted electric power is 1kW · h 7000.342 kgce, in accordance with the standard coal conversion coefficient.
According to the heat transfer formula, the heat quantity obtained by heating the heat exchange tube 2 by the slag for 1 hour is 4.2 multiplied by 4900 multiplied by 60, 1234800kJ, 42kgce, 122 kW.h, and the electricity price is 0.55 yuan/kW.h. The economic benefit is 122 multiplied by 0.55 to 67 yuan. The slag is put 10 times a day, the working day of the blast furnace is 355 days, the annual benefit of tap water heated to 80 ℃ from normal temperature is 67 multiplied by 10 multiplied by 355 multiplied by 237850 yuan, namely the annual benefit is about 23 ten thousand yuan.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the following claims are intended to cover all modifications, equivalents, and improvements falling within the spirit and principles of the present invention.
Claims (10)
1. A blast furnace slag waste heat recovery system, characterized in that, the recovery system includes:
the slag runner is used for guiding the liquid blast furnace slag;
the heat exchange pipe is arranged inside the slag runner, and at least one part of the heat exchange pipe is arranged below the liquid level of the liquid blast furnace slag so as to transfer the heat of the liquid blast furnace slag to the inside of the heat exchange pipe;
the heat carrier circulates along the interior of the heat exchange tube so as to take away heat transferred from the liquid blast furnace slag to the interior of the heat exchange tube;
and the two valves are respectively arranged at the two ends of the heat exchange tube so as to control the circulation of the heat carrier inside the heat exchange tube.
2. The blast furnace slag waste heat recovery system according to claim 1, wherein the heat exchange pipe is arranged on the inner wall of the slag runner and extends along the length direction of the slag runner.
3. The blast furnace slag waste heat recovery system according to claim 2, wherein the heat exchange pipe extends in a serpentine shape or an S-shape, and a lower half portion of the heat exchange pipe in the depth direction of the slag runner is positioned below the liquid level of the liquid blast furnace slag;
wherein, the lowest distance of the heat exchange tube is away from the bottom of the slag runner by a certain distance.
4. The blast furnace slag waste heat recovery system according to claim 3, wherein the inner wall of the slag runner is provided with a mounting bracket to support the heat exchange pipe.
5. The blast furnace slag waste heat recovery system according to claim 1, wherein a trench cover plate is provided on the slag trench.
6. The blast furnace slag waste heat recovery system of claim 1, wherein the heat carrier is tap water, one end of the heat exchange pipe is connected with a water supply device, and the other end of the heat exchange pipe is connected with a water collecting tank.
7. The blast furnace slag waste heat recovery system according to claim 6, wherein an insulating layer is arranged outside the water collection tank.
8. The blast furnace slag waste heat recovery system according to claim 1, further comprising a temperature measuring device to detect the temperature of the heat carrier inside the heat exchange pipe.
9. The blast furnace slag waste heat recovery system according to claim 8, further comprising:
and the controller is electrically connected with the temperature measuring device and the valve so as to control the valve based on the temperature of the heat carrier detected by the temperature measuring device.
10. The blast furnace slag waste heat recovery system according to claim 9, wherein the temperature measuring device is a temperature sensor;
the valve is an electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202120489389.6U CN215103348U (en) | 2021-03-08 | 2021-03-08 | Blast furnace slag waste heat recovery system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120489389.6U CN215103348U (en) | 2021-03-08 | 2021-03-08 | Blast furnace slag waste heat recovery system |
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| CN215103348U true CN215103348U (en) | 2021-12-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114774603A (en) * | 2022-04-29 | 2022-07-22 | 马鞍山钢铁股份有限公司 | Recycling system for high-temperature radiant heat of blast furnace tapping channel |
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2021
- 2021-03-08 CN CN202120489389.6U patent/CN215103348U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114774603A (en) * | 2022-04-29 | 2022-07-22 | 马鞍山钢铁股份有限公司 | Recycling system for high-temperature radiant heat of blast furnace tapping channel |
| CN114774603B (en) * | 2022-04-29 | 2024-01-30 | 马鞍山钢铁股份有限公司 | Recycling system of high-temperature radiant heat of blast furnace tapping channel |
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