CN211367620U - Blast furnace bottom hearth system - Google Patents

Blast furnace bottom hearth system Download PDF

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Publication number
CN211367620U
CN211367620U CN201921910143.0U CN201921910143U CN211367620U CN 211367620 U CN211367620 U CN 211367620U CN 201921910143 U CN201921910143 U CN 201921910143U CN 211367620 U CN211367620 U CN 211367620U
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hearth
furnace
cooling
cooling water
refractory material
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王得刚
索延帅
段国建
全强
侯利平
陈秀娟
祁四清
王春龙
赵艳霞
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Capital Engineering & Research Inc Ltd
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Capital Engineering & Research Inc Ltd
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Abstract

The utility model discloses a blast furnace stove bottom hearth system, this system includes: the hearth, the stove bottom, this system still includes: the setting is at the bottom of the stove resistant material of stove, sets up the refractory material of stove jar around the stove jar, stove bottom cooling arrangement, stove bottom monitoring sensor, stove jar cooling arrangement, stove jar monitoring sensor and modulator, wherein: the furnace bottom cooling equipment is connected with the furnace bottom refractory and is used for providing cooling water for the furnace bottom refractory; the furnace bottom monitoring sensor is connected with the furnace bottom refractory material and is used for monitoring the temperature of the furnace bottom refractory material; the hearth cooling equipment is connected with the hearth refractory material and used for providing cooling water for the hearth refractory material; the hearth monitoring sensor is connected with the hearth refractory material and used for monitoring the temperature of the hearth refractory material; and the regulator is respectively connected with the furnace bottom cooling equipment and the furnace hearth cooling equipment and is used for regulating cooling water of the furnace bottom cooling equipment and regulating cooling water of the furnace hearth cooling equipment.

Description

Blast furnace bottom hearth system
Technical Field
The utility model relates to a metallurgical industry ironmaking field, concretely relates to blast furnace stove bottom hearth system.
Background
The weak links of the service life of the blast furnace are the furnace bottom, the furnace hearth, the furnace belly, the furnace waist and the lower part of the furnace body. The temperature of the molten iron and the slag in the hearth is generally 1450-1500 ℃, particularly, a large amount of coal gas is generated by burning coke in a tuyere area, the highest temperature area in the blast furnace is provided, and the temperature is 2000-2300 ℃. As a refractory material for the inner liners of the furnace bottom and the furnace hearth, the refractory material is subjected to the action of high temperature and the chemical erosion of iron slag and the scouring of molten iron. The furnace bottom mainly comprises infiltration erosion of molten iron, and the erosion of alkali and zinc is also serious. The hearth and the hearth of the blast furnace are the areas of the blast furnace with the highest load, and the service life of the hearth and the hearth determines the length of the service life of the blast furnace.
At present, the water cooling structure is adopted to connect the water cooling systems of the blast furnace bottom and the tuyere large sleeve in series, the furnace hearth cooling system is connected with the cooling systems of the furnace belly, the furnace waist and the furnace body in series, and the protection of the refractory materials of the blast furnace bottom and the furnace hearth is realized through the heat exchange effect of cooling water.
With the progress of refractory technology in recent years, the protection of the blast furnace by the refractory is greatly improved, the corrosion problem of the bottom of the blast furnace is not a main contradiction influencing the long service life of the blast furnace, but the circulation of molten iron in a hearth during tapping can aggravate the corrosion to refractory of the hearth and influence the service life of the hearth, and the service life of the hearth determines the length of the service life of the blast furnace to a greater extent.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a blast furnace stove bottom hearth system to solve the problem of the interior molten iron circulation aggravation of above-mentioned hearth to the erosion of hearth refractory material, influence the hearth life-span and then shorten blast furnace campaign at least.
The utility model provides a blast furnace stove bottom hearth system includes: the hearth, the stove bottom still include: the setting is in the stove bottom resistant material of stove bottom, setting are in the refractory material of furnace hearth around the furnace hearth, stove bottom cooling arrangement, stove bottom monitoring sensor, furnace hearth cooling arrangement, furnace hearth monitoring sensor and modulator, wherein: the furnace bottom cooling equipment is connected with the furnace bottom refractory material and is used for providing cooling water for the furnace bottom refractory material; the furnace bottom monitoring sensor is connected with the furnace bottom refractory material and is used for monitoring the temperature of the furnace bottom refractory material; the hearth cooling equipment is connected with the hearth refractory material and used for providing cooling water for the hearth refractory material; the hearth monitoring sensor is connected with the hearth refractory material and used for monitoring the temperature of the hearth refractory material; and the regulator is respectively connected with the furnace bottom cooling equipment and the furnace hearth cooling equipment and is used for regulating the cooling water of the furnace bottom cooling equipment and regulating the cooling water of the furnace hearth cooling equipment.
Further, the furnace bottom monitoring sensor is connected with the furnace bottom cooling device and used for monitoring the temperature of cooling water of the furnace bottom cooling device.
Further, the hearth monitoring sensor is connected with the hearth cooling device and used for monitoring the temperature of cooling water of the hearth cooling device.
Furthermore, the regulator is also connected with the furnace bottom monitoring sensor and the furnace hearth monitoring sensor respectively, and is used for regulating the cooling water quantity, the cooling water temperature and/or the cooling water flow rate of the furnace bottom cooling equipment according to the monitoring data of the furnace bottom monitoring sensor, and regulating the cooling water quantity, the cooling water temperature and/or the cooling water flow rate of the furnace hearth cooling equipment according to the monitoring data of the furnace hearth monitoring sensor.
The regulator is specifically configured to: and when the hearth monitoring sensor monitors that the temperature of the hearth refractory material abnormally rises, adjusting the hearth cooling equipment to increase the cooling water quantity, reduce the cooling water temperature and/or increase the cooling water flow rate.
The controller is further specifically configured to: and adjusting the quantity of the cooling water of the hearth cooling equipment to be reduced, and/or the temperature of the cooling water to be increased, and/or the flow rate of the cooling water to be reduced.
Preferably, the system further comprises: and a plurality of temperature measuring elements respectively arranged at different positions of the hearth refractory and the bottom refractory.
The temperature measuring element is a thermocouple.
Specifically, the furnace bottom monitoring sensor monitors a temperature measuring element provided in the furnace bottom refractory to know the temperature of the furnace bottom refractory.
Specifically, the hearth monitoring sensor monitors a temperature measuring element arranged in the hearth refractory material to know the temperature of the hearth refractory material.
According to the technical scheme, the temperature data of the refractory material of the hearth is monitored by the hearth monitoring sensor, whether the temperature of the refractory material of the hearth is abnormally increased can be judged, when the temperature of the refractory material of the hearth is abnormally increased, the cooling water of the furnace bottom cooling device is adjusted by the controller, so that the cooling strength of the furnace bottom cooling device on the refractory material of the furnace bottom is reduced, the corrosion of the refractory material of the furnace bottom can be moderately increased, the dead material column is in a floating state in the hearth, the cooling water of the furnace hearth cooling device is adjusted by the controller, so that the cooling strength of the furnace hearth cooling device on the refractory material of the hearth is increased, the condition that molten iron flows to an iron outlet from the bottom of the dead material column during tapping can be ensured, the circulation of the molten iron in the hearth during tapping is reduced, the corrosion of the refractory material of the hearth is reduced, and the service life of the hearth is.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a block diagram of a blast furnace hearth system according to an embodiment of the present invention;
fig. 2 is an exemplary diagram of a blast furnace hearth system according to an embodiment of the present invention.
Reference numerals:
101. refractory material at the bottom of the furnace;
102. refractory material of a hearth;
103. furnace bottom cooling equipment;
104. a furnace bottom monitoring sensor;
105. a hearth cooling apparatus;
106. a hearth monitoring sensor;
107 a regulator;
1. refractory material at the bottom of the furnace;
2. an independent furnace bottom cooling system;
3. a furnace bottom thermocouple;
4. refractory material of a hearth;
5. a separate hearth cooling system;
6. a hearth thermocouple;
7. the material column is dead;
8. and (4) molten iron.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the production process of the blast furnace, dead material columns can be generated in the furnace hearth and exist for a long time, the gravity of the blast furnace material columns is transferred to the iron slag accumulated in the furnace hearth through the dead material columns, and under the balance between the gravity of the furnace charge and the buoyancy of molten iron, part of coke in the dead material columns is immersed in the molten iron.
When the depth of the dead iron layer is shallow, the gravity of the furnace charge is greater than the buoyancy of the molten iron, and the dead material column descends to be in contact with the furnace bottom to form a sitting state. At the moment, when tapping, molten iron flows out after being converged to an iron notch from the periphery of the furnace hearth in a circulating state, the circulating current of the molten iron forms large scouring on the furnace hearth, and does not scour the furnace bottom. The circular flow of molten iron during tapping accelerates the erosion of the bottom side wall of the hearth, which becomes the main cause of the foot-shaped erosion on the hearth. The elephant foot local erosion of the refractory material of the furnace hearth often causes accidents such as local overheating of the furnace hearth, burst of the furnace hearth and the like, and the service life of the blast furnace is seriously influenced.
When the depth of the dead iron layer is deeper, the gravity of the furnace charge is smaller than the buoyancy of the molten iron, and the dead material column rises to be separated from the contact with the furnace bottom to form a floating state. At the moment, when tapping, molten iron can flow to the tapping hole from the bottom of the dead material column under the action of gravity and radially flow outwards, the molten iron flows out after converging to the tapping hole, and the molten iron has certain scouring to the furnace bottom and has smaller scouring to the furnace hearth. The floating of the dead material column reduces the circular flow scouring suffered by the furnace hearth during tapping, and is beneficial to prolonging the service life of the furnace hearth.
Based on this, the embodiment of the utility model provides a blast furnace stove bottom hearth system, fig. 1 is this blast furnace stove bottom hearth system's schematic structure diagram, as shown in fig. 1, this system includes: a hearth (not shown), a bottom (not shown), the system further comprising: a hearth refractory 101 provided on the hearth, a hearth refractory 102 provided around the hearth, a hearth cooling device 103, a hearth monitoring sensor 104, a hearth cooling device 105, a hearth monitoring sensor 106, and a regulator 107, wherein:
the furnace bottom cooling equipment 103 is connected with the furnace bottom refractory material and is used for providing cooling water for the furnace bottom refractory material;
the furnace bottom monitoring sensor 104 is connected with the furnace bottom refractory material and is used for monitoring the temperature of the furnace bottom refractory material;
the hearth cooling equipment 105 is connected with the hearth refractory and used for providing cooling water for the hearth refractory;
the hearth monitoring sensor 106 is connected with the hearth refractory and used for monitoring the temperature of the hearth refractory;
and the regulator 107 is respectively connected with the furnace bottom cooling device and the furnace hearth cooling device and is used for regulating cooling water of the furnace bottom cooling device and regulating cooling water of the furnace hearth cooling device.
The furnace bottom monitoring sensor 104 can also be connected with the furnace bottom cooling device 103 and is used for monitoring the temperature of cooling water of the furnace bottom cooling device; a hearth monitoring sensor 106 is connected to the hearth cooling apparatus 105 for monitoring the temperature of the cooling water of the hearth cooling apparatus.
When the hearth monitoring sensor monitors that the temperature of the hearth refractory material abnormally rises, the regulator can regulate the increase of the cooling water quantity of the hearth cooling equipment, the decrease of the cooling water temperature and/or the increase of the cooling water flow rate so as to increase the cooling intensity of the hearth cooling equipment. For example, the regulator regulates the cooling water temperature in the hearth cooling apparatus to decrease from 38 ℃ to 33 ℃, which may be lower in winter, e.g., 28 ℃; the amount of cooling water is 3300m3Increase of/h to 3900m3The water flow rate is increased from 1.8m/s to 2.1m/s, so that the cooling intensity of the hearth cooling equipment is increased, and the temperature of the hearth refractory material is reduced.
Meanwhile, the regulator can also adjust the reduction of the cooling water quantity of the furnace bottom cooling equipment, and/or the increase of the cooling water temperature, and/or the reduction of the cooling water flow rate, so that the cooling intensity of the furnace bottom cooling equipment is reduced. For example, the regulator regulates the amount of cooling water in the hearth cooling equipment to be 350m3Reduction of h to 150m3/h。
The cooling water of the furnace bottom cooling equipment is adjusted through the regulator, so that the cooling strength of the furnace bottom cooling equipment to the furnace bottom refractory material is reduced, the corrosion of the furnace bottom refractory material can be moderately increased, the dead material column is in a floating state in the furnace hearth, meanwhile, the cooling water of the furnace hearth cooling equipment is adjusted through the regulator, so that the cooling strength of the furnace hearth cooling equipment to the furnace hearth refractory material is increased, the condition that molten iron flows to the tapping hole from the bottom of the dead material column during tapping can be ensured, the circulation of the molten iron in the furnace hearth during tapping is reduced, the corrosion of the furnace hearth refractory material is reduced, and the service life of the furnace hearth is prolonged.
In actual operation, stove bottom cooling arrangement and hearth cooling arrangement can be adjusted simultaneously to the modulator, also can adjust at different times, the utility model discloses be not limited to this. And, the regulator adjusts the concrete numerical value of the cooling water temperature in stove bottom cooling arrangement and the hearth cooling arrangement, and the concrete numerical value of water yield, the concrete numerical value of water velocity etc. also can be decided according to actual operation, the utility model discloses be not limited to this. The adjustment of the regulator only needs to ensure that the dead material column is in a floating state in the furnace hearth, molten iron flows to the tapping hole from the bottom of the dead material column during tapping, and the circulation of the molten iron in the furnace hearth during tapping is reduced.
In the actual operation process, a plurality of temperature measuring elements, which can be thermocouples, can be arranged at different positions of the hearth refractory material and the hearth refractory material in advance.
The furnace bottom monitoring sensor can monitor a temperature measuring element arranged in the furnace bottom refractory material to acquire the temperature of the furnace bottom refractory material. Correspondingly, the hearth monitoring sensor can also monitor a temperature measuring element arranged in the hearth refractory material to know the temperature of the hearth refractory material. Thus, whether the temperature of the hearth refractory and the hearth refractory is in a reasonable range can be judged.
And, according to the temperature data of the temperature measuring element of different positions, can confirm the erosion degree of the said hearth refractory material and said bottom refractory material separately. Generally, the higher the temperature, the higher the degree of erosion of the refractory material, and from practical experience, the relationship between the specific temperature value and the specific degree of erosion can be obtained. According to the erosion degree of the hearth resistant material and the hearth resistant material, the cooling intensity of the hearth resistant material and the cooling intensity of the hearth resistant material can be balanced through a regulator. The long service life of the hearth and the hearth can be realized by the balance treatment of the cooling strength of the hearth refractory and the hearth refractory.
To further understand the embodiments of the present invention, an example of a bottom hearth system of a blast furnace is given below.
Fig. 2 is a schematic view of a blast furnace hearth system according to an embodiment of the present invention, as shown in fig. 2, the system comprising: the furnace bottom refractory material comprises a furnace bottom refractory material 1, an independent furnace bottom cooling system 2, a plurality of furnace bottom thermocouples 3, a furnace hearth refractory material 4, an independent furnace hearth cooling system 5 and a plurality of furnace hearth thermocouples 6.
The plurality of hearth thermocouples 3 and the plurality of hearth thermocouples 6 have appropriate depths within the hearth refractory 1 and the hearth refractory 4.
In the monitoring process, the furnace bottom monitoring sensor monitors the furnace bottom thermocouple 3, the furnace hearth monitoring sensor monitors the furnace hearth thermocouple 6, whether the temperatures of the furnace bottom refractory material 1 and the furnace hearth refractory material 4 are in a reasonable range or not can be judged according to the monitored temperatures, and the erosion degree of the furnace bottom refractory material 1 and the erosion degree of the furnace hearth refractory material 4 can be judged according to the temperature conditions of the furnace bottom refractory material 1 and the furnace hearth refractory material 4. When the temperature rises, the erosion degree of the refractory material is increased, so that the erosion degree of the hearth refractory material and the hearth refractory material can be accurately reflected through the temperatures of the thermocouples.
When the temperature of the hearth refractory 4 is abnormally increased, the independent hearth cooling system 5 of the furnace can be regulated and controlled by the regulator to reduce the temperature of the cooling water of the independent hearth cooling system 5, for example, from 38 ℃ to 33 ℃, and can be lower in winter, for example, 28 ℃; increasing the cooling water flow rate of the independent hearth cooling system 5, e.g. from 3300m3Increase of/h to 3900m3The water flow rate is increased from 1.8m/s to 2.1m/s, thereby enhancing the cooling strength of the hearth refractory 4.
When the independent hearth cooling system 5 is adjusted, the regulator can also regulate and control the independent hearth cooling system 2 so as to reduce the cooling water flow of the independent hearth cooling system 2 and reduce the cooling strength of the hearth refractory material 1, for example, the hearth water flow is 350m3Reduction of h to 150m3/h。
By reducing the cooling strength of the hearth refractory 1, the erosion of the hearth refractory 1 can be increased appropriately, and the deadly material pillars 7 can be made to float in the hearth.
The cooling strength of the furnace bottom refractory material 1 and the furnace hearth refractory material 4 is respectively adjusted through the regulator, so that molten iron 8 can flow to an iron notch from the bottom of the dead material column 7 during tapping, the circulation of the molten iron in the furnace hearth during tapping is reduced, the corrosion of the furnace hearth refractory material 4 can be reduced, and the service life of the furnace hearth is prolonged.
The temperature of the furnace bottom thermocouple 3 and the temperature of the furnace hearth thermocouple 6 are respectively monitored by the furnace bottom monitoring sensor and the furnace hearth monitoring sensor, whether the temperature of furnace bottom refractory and furnace hearth refractory is reasonable or not can be analyzed, the corrosion state of the furnace bottom refractory and the corrosion state of the furnace hearth refractory can be judged, the cooling strength of the furnace bottom refractory and the furnace hearth refractory is uniformly maintained by the furnace bottom cooling system 2 and the furnace hearth cooling system 5, and therefore the long service life of the furnace bottom and the furnace hearth can be achieved.
The embodiment of the utility model provides a receive certain erosion but can guarantee under the prerequisite of stove bottom life-span at stove bottom resistant material, carry out cooling strength through stove bottom cooling system 2 and hearth cooling system 5 to stove bottom resistant material and hearth resistant material respectively and adjust, suitably increase stove bottom erosion, reduce the erosion of molten iron circulation to the hearth, guaranteed stove bottom and hearth cooling strength's equilibrium, realized the longe-lived of stove bottom hearth, long-term operation to blast furnace safety and stability has great meaning.
To sum up, the embodiment of the utility model provides a blast furnace stove bottom hearth system can regulate and control in order to reduce stove bottom cooling strength, regulate and control in order to strengthen hearth cooling strength to hearth cooling system through the modulator under the prerequisite of guaranteeing the stove bottom life-span, can reduce the erosion of molten iron circulation to the hearth, and the cooling strength of balanced stove bottom and hearth realizes the synchronous longe-lived of stove bottom hearth. The embodiment of the utility model provides a have following advantage:
(1) the dead material column in the furnace hearth is changed from a sitting state to a floating state;
(2) the erosion of the molten iron circulation to the hearth is fully reduced;
(3) the independent cooling systems of the furnace bottom and the furnace hearth are operated, and the operation method is simple and easy to implement;
(4) the balanced cooling strength of the furnace bottom and the furnace hearth is ensured, the long service life of the furnace bottom and the furnace hearth is realized, and the method has great significance for the safe and stable long-term operation of the blast furnace.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.
The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. The processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
The terms "comprises," "comprising," or any other variation thereof, in the embodiments of this specification are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the presence of additional identical or equivalent elements in a process, method, article, or apparatus that comprises the recited elements is not excluded.
For convenience of description, the above devices are described as being divided into various modules by functions, and are described separately. Of course, in implementing the embodiments of the present description, the functions of each module may be implemented in one or more software and/or hardware, or a module implementing the same function may be implemented by a combination of multiple sub-modules or sub-units, and the like. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the specification. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above description is only an example of the embodiments of the present disclosure, and is not intended to limit the embodiments of the present disclosure. Various modifications and variations to the embodiments described herein will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present specification should be included in the scope of the claims of the embodiments of the present specification.

Claims (10)

1. A blast furnace hearth system, said system comprising: hearth, stove bottom, its characterized in that, the system still includes: the setting is in the stove bottom resistant material of stove bottom, setting are in the refractory material of furnace hearth around the furnace hearth, stove bottom cooling arrangement, stove bottom monitoring sensor, furnace hearth cooling arrangement, furnace hearth monitoring sensor and modulator, wherein:
the furnace bottom cooling equipment is connected with the furnace bottom refractory material and is used for providing cooling water for the furnace bottom refractory material;
the furnace bottom monitoring sensor is connected with the furnace bottom refractory material and is used for monitoring the temperature of the furnace bottom refractory material;
the hearth cooling equipment is connected with the hearth refractory material and used for providing cooling water for the hearth refractory material;
the hearth monitoring sensor is connected with the hearth refractory material and used for monitoring the temperature of the hearth refractory material;
and the regulator is respectively connected with the furnace bottom cooling equipment and the furnace hearth cooling equipment and is used for regulating the cooling water of the furnace bottom cooling equipment and regulating the cooling water of the furnace hearth cooling equipment.
2. The blast furnace hearth system according to claim 1, wherein said hearth monitoring sensor is connected to said hearth cooling apparatus for monitoring a cooling water temperature of said hearth cooling apparatus.
3. The blast furnace bottom hearth system according to claim 1, wherein said hearth monitoring sensor is connected to said hearth cooling apparatus for monitoring a cooling water temperature of said hearth cooling apparatus.
4. The blast furnace hearth system according to claim 1, wherein said regulator is further connected to said hearth monitoring sensor and said hearth monitoring sensor, respectively, for regulating the amount of cooling water and/or the temperature of cooling water and/or the flow rate of cooling water of said hearth cooling device based on the monitoring data of said hearth monitoring sensor, and for regulating the amount of cooling water and/or the temperature of cooling water and/or the flow rate of cooling water of said hearth cooling device based on the monitoring data of said hearth monitoring sensor.
5. The blast furnace bottom hearth system according to claim 4, wherein said regulator is specifically configured to: and when the hearth monitoring sensor monitors that the temperature of the hearth refractory material abnormally rises, adjusting the hearth cooling equipment to increase the cooling water quantity, reduce the cooling water temperature and/or increase the cooling water flow rate.
6. The blast furnace hearth system of claim 5, wherein said regulator is further configured to: and adjusting the quantity of the cooling water of the hearth cooling equipment to be reduced, and/or the temperature of the cooling water to be increased, and/or the flow rate of the cooling water to be reduced.
7. The blast furnace hearth system of claim 1, further comprising:
and a plurality of temperature measuring elements respectively arranged at different positions of the hearth refractory and the bottom refractory.
8. The blast furnace hearth system of claim 7, wherein said temperature sensing element is a thermocouple.
9. The blast furnace hearth system of claim 7, wherein said hearth monitoring sensor monitors a temperature sensing element disposed in said hearth refractory to know the temperature of said hearth refractory.
10. The blast furnace bottom hearth system according to claim 7, wherein said hearth monitoring sensor monitors a temperature measuring element provided in said hearth refractory to know a temperature of said hearth refractory.
CN201921910143.0U 2019-11-07 2019-11-07 Blast furnace bottom hearth system Active CN211367620U (en)

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Application Number Priority Date Filing Date Title
CN201921910143.0U CN211367620U (en) 2019-11-07 2019-11-07 Blast furnace bottom hearth system

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Application Number Priority Date Filing Date Title
CN201921910143.0U CN211367620U (en) 2019-11-07 2019-11-07 Blast furnace bottom hearth system

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Publication Number Publication Date
CN211367620U true CN211367620U (en) 2020-08-28

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