CN210636022U - Tapping protection and temperature measuring device for converter and electric furnace - Google Patents
Tapping protection and temperature measuring device for converter and electric furnace Download PDFInfo
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- CN210636022U CN210636022U CN201921332388.XU CN201921332388U CN210636022U CN 210636022 U CN210636022 U CN 210636022U CN 201921332388 U CN201921332388 U CN 201921332388U CN 210636022 U CN210636022 U CN 210636022U
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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
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Abstract
The utility model relates to a tapping protection and temperature measurement device for a converter and an electric furnace, which comprises a converter body or an electric furnace body, wherein a steel outlet is arranged on the side wall of the converter body or the electric furnace body close to a port; the protection device body comprises an inlet end and an outlet end, the inlet end is matched with a steel tapping hole of the converter body or the electric furnace body, the outlet end is sleeved at a steel ladle hole, the diameter of the outlet end is larger than that of the inlet end, and the inlet end and the outlet end are smoothly connected through a connecting section to form a communicating channel; an isolation layer is arranged in the steel ladle close to the bottom of the steel ladle, and an air inlet is formed in the side wall of the steel ladle, which is positioned on the isolation layer, and used for filling argon into the steel ladle; the utility model discloses alleviateed the inspiratory capacity of molten steel in the ladle, reduced thermal loss to the molten steel at the in-process of empting simultaneously.
Description
Technical Field
The utility model relates to a tapping protection and temperature measuring device for a converter and an electric furnace, belonging to the field of steel smelting.
Background
With the continuous progress of society, the downstream industries of the steel making industry have higher and higher requirements on steel products, the requirements on the purity of steel products are stricter, and the exceeding of harmful elements such as nitrogen, hydrogen and inclusions in the steel products can generate adverse effects on the subsequent processing and use of the steel products. The tapping process of a converter and an electric furnace is a main link causing the molten steel to absorb harmful gases such as nitrogen, hydrogen, oxygen and the like, the whole process from a tapping hole to a steel ladle of the molten steel is completely exposed and contacted with air, the suction of the molten steel is serious, the temperature drop of the molten steel is large, and pressure is brought to subsequent refining, vacuum degassing and continuous casting;
the published application with the application number of 201710111398.X discloses a molten steel transfer device capable of protecting steel tapping and an electric furnace steel-making system capable of protecting steel tapping, and the molten steel transfer device comprises an electric furnace body and a molten steel transfer device, wherein the molten steel transfer device comprises a ladle car and a steel tapping protection pipe, the ladle car comprises a protection pipe regulating and controlling unit and a ladle tank, the steel tapping protection pipe is mounted on the protection pipe regulating and controlling unit, and the protection pipe regulating and controlling unit is used for regulating and controlling the steel tapping protection pipe to move in the vertical direction or the horizontal direction; the steel tapping protection pipe comprises a protection sleeve and a connecting sleeve, the sleeve inlet end of the protection sleeve is connected with the connecting sleeve to form a through steel tapping protection pipe, and a gap is formed between molten steel and the inner wall of the protection sleeve when the molten steel flows through the protection sleeve; the above-described known art, although establishing a relatively sealed molten steel passage in the steel protective pipe, has several problems: the manufacturing cost of the connecting pipeline is very high, the requirement on refractory materials is higher, and the defect that harmful gas in air is absorbed when molten steel enters a steel ladle through a protection pipe still exists.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the background art, the utility model provides a be used for converter, electric stove tapping protection and temperature measuring device, alleviateed the inspiratory capacity of molten steel in the ladle, reduced thermal loss to the molten steel when empting the in-process simultaneously.
The utility model provides a technical scheme that its technical problem adopted is:
a tapping protection and temperature measurement device for a converter and an electric furnace comprises a converter body or an electric furnace body, a tapping hole is arranged on the side wall of the converter body or the electric furnace body close to a port,
the protection device body is detachably arranged at a ladle opening, and the ladle is arranged on the mobile device;
the protection device body comprises an inlet end and an outlet end, the inlet end is matched with a steel tapping hole of the converter body or the electric furnace body, the outlet end is sleeved at a steel ladle hole, the diameter of the outlet end is larger than that of the inlet end, and the inlet end and the outlet end are smoothly connected through a connecting section to form a communicating channel;
an isolation layer is arranged in the steel ladle close to the bottom of the steel ladle, and an air inlet is formed in the side wall of the steel ladle, which is positioned on the isolation layer, and used for filling argon into the steel ladle;
as a further preferred aspect of the present invention, the connecting section gradually increases from the inlet end to the outlet end, so that the protection device body has a tapered structure;
as a further preference of the present invention, the isolation layer comprises a plurality of air bricks and bases with the same number as the air bricks, the air bricks comprise conical column structures, the diameters of the air bricks are gradually increased from the top end to the bottom end, a thin tube is installed at the center of the bottom end, and the thin tube is communicated with the conical column structures;
the base is of a square structure, a cylindrical through groove is formed in the center of the base, the diameter of the cylindrical through groove is matched with the conical column structure of the air brick, the bottom end of the air brick is inserted into the cylindrical through groove, and each thin pipe is communicated with the air inlet;
as a further preference of the utility model, the protection device body is further provided with a temperature measuring device, the overlapping end is coaxially arranged inside the inlet end of the protection device body, the wall thickness between the inlet end and the overlapping end is widened, a groove is arranged between the inlet end and the overlapping end, the temperature measuring device is arranged in the groove, and the surface of the groove is covered with the protection cover;
as a further preferred aspect of the present invention, the temperature measuring device is an infrared thermometer;
the protective cover is made of transparent material;
as a further preferred feature of the present invention, the moving device includes a moving plate, which is arranged in a square structure, pulleys are respectively installed at four corners of the bottom of the moving plate, and a groove is formed in the center of the surface of the moving plate, and is matched with the bottom of the ladle;
the ladle is arranged on the surface of the movable plate.
Through above technical scheme, for prior art, the utility model discloses following beneficial effect has:
1. the protection device body of the utility model is arranged in a taper structure, meanwhile, the diameter of the outlet end is larger than that of the inlet end, the outlet end can be sleeved at the position of the ladle hole, and the inlet end is matched with the steel tapping hole, thereby ensuring the totally-enclosed circulation of molten steel from the steel tapping hole to the ladle in the process;
2. the utility model discloses be close to the package end in the ladle and set up the isolation layer, set up the air inlet on the lateral wall that the ladle is located the isolation layer, air inlet, isolation layer and protection device body mutually support, through the argon gas that fills in the air inlet, with this internal air escape of space and protection device that are close to ladle mouth department in the ladle, further guarantee that the molten steel forms between steel tapping hole to ladle and seal the circulation.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic overall structure diagram of a preferred embodiment of the present invention;
FIG. 2 is a schematic structural view of the air brick in the isolation layer according to the preferred embodiment of the present invention;
fig. 3 is a schematic structural view of the inner base of the isolation layer according to the preferred embodiment of the present invention;
fig. 4 is a schematic view of the internal structure of the air brick according to the preferred embodiment of the present invention.
In the figure: the converter body or the electric furnace body is 1, the protection device body is 2, the moving plate is 3, the coinciding end is 4, the inlet end is 5, the outlet end is 6, the isolating layer is 7, the infrared thermometer is 8, the cylindrical through groove is 9, and the air brick is 10.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1 to 4, the present invention includes the following characteristic components: the converter body or the electric furnace body is 1, the protection device body is 2, the moving plate is 3, the coinciding end is 4, the inlet end is 5, the outlet end is 6, the isolating layer is 7, the infrared thermometer is 8, the cylindrical through groove is 9, and the air brick is 10.
The utility model relates to a tapping protection and temperature measurement device for a converter and an electric furnace, which comprises a converter body or an electric furnace body, a steel outlet is arranged on the side wall of the converter body or the electric furnace body close to a port,
the protection device body is detachably arranged at a ladle opening, and the ladle is arranged on the mobile device;
the protection device body comprises an inlet end and an outlet end, the inlet end is matched with a steel tapping hole of the converter body or the electric furnace body, the outlet end is sleeved at a steel ladle hole, the diameter of the outlet end is larger than that of the inlet end, and the inlet end and the outlet end are smoothly connected through a connecting section to form a communicating channel;
an isolation layer is arranged in the steel ladle close to the bottom of the steel ladle, and an air inlet is formed in the side wall of the steel ladle, which is positioned on the isolation layer, and used for filling argon into the steel ladle;
fig. 1 shows a specific preferred embodiment of the present application:
a steel outlet is arranged on the side wall of the converter body or the electric furnace body close to the port, a steel ladle is placed on the movable plate, the protection device body is detachably arranged at the position of the steel ladle port, the protection device body comprises an inlet end and an outlet end which are smoothly connected through a connecting section, the diameter of the inlet end is gradually increased to the diameter of the outlet end, the outlet end is sleeved at the position of the steel ladle port, and the inlet end is opposite to the steel outlet;
as shown in fig. 2-3, a plurality of bases are arranged in the steel ladle near the bottom, cylindrical through grooves are formed in the center of each base, an air brick is installed in each cylindrical through groove, the diameter of each air brick gradually increases from the top end to the bottom end, the top end of each air brick is used as an air inlet end, a thin pipe is installed in the center of the bottom end of each air brick as an air outlet end, the bottom end of each air brick is inserted into the cylindrical through groove, an air inlet is formed in the side wall, located on the isolation layer, of the steel ladle, and each thin pipe is communicated;
the preferred air brick is a dispersive air brick, and the structure is shown in figure 4;
coaxially arranging a coincidence end in the inlet end of the protection device body, widening the wall thickness between the inlet end and the coincidence end, forming a groove between the inlet end and the coincidence end, arranging an infrared thermometer in the groove, and covering a protection cover on the surface of the groove;
the inlet end of the protection device body is butted with a converter body and a steel tapping hole of an electric furnace body, the outlet end of the protection device body is butted with a steel ladle hole to form a closed channel, argon is filled into an air inlet formed in the side wall of the isolation layer of the steel ladle, the flow range of the blown argon is 0-1800L/min, the argon moves towards the steel ladle hole through the air brick and can discharge gas in the closed channel formed among the steel ladle hole, the protection device body and the steel tapping hole, so that outside air can not enter, certain pressure is generated at the bottom of the steel ladle due to the fact that gas is blown in, the steel ladle body is heated and expanded after contacting molten steel, and the protection device body is arranged in a conical structure, and the pressure of the gas discharged from the inlet end of the protection device body is very high due to the fact that the channel hole is narrowed in the upward discharging process that the argon is blown at the bottom, which, because the diameter of the inlet end is smaller than that of the outlet end, the gas outside the protection device body is basically isolated and cannot enter, the protection effect is better, the purity of the molten steel is better, great pressure is relieved for subsequent refining and continuous casting, and the quality of finished products is improved;
argon is adopted in the method, and the components of the molten steel cannot be influenced when the argon is blown into the steel ladle;
meanwhile, when argon is discharged from the inlet end of the protection device body, the diameter of the protection device body from the outlet end to the inlet end is smaller and smaller, so that the heat flow pressure is increased, external air cannot enter the protection device body, and the downward poured molten steel cannot be influenced; a closed channel formed among the ladle opening, the protection device body and the steel tapping hole is filled with hot inert gas, so that the steel liquid is well insulated, the temperature loss is reduced, and the energy is saved;
the outlet end of the protection device body is sleeved at the opening of the steel ladle and can be stably placed on the steel ladle directly without other fastening components, the installation is simple and convenient, the adjustment and transportation are convenient, meanwhile, a closed channel is formed on the protection device body, a larger gap is reserved between the closed channel and the steel horizontal plane in the steel ladle, molten steel flows through the protection device body after steel tapping and reaches the steel ladle, the inner wall of the protection device body cannot be washed away in the whole process, so that the requirement on the material for manufacturing the protection device body is not high, the common high-temperature-resistant material is enough, the cost is saved compared with other closed sleeves, and the production cost is greatly saved;
the wall thickness between the inlet end and the coincidence end IS widened, a groove IS formed between the inlet end and the coincidence end, an infrared thermometer IS arranged in the groove, the temperature in a steel ladle can be conveniently measured, the temperature drop can be accurately known, the tapping temperature of a converter and an electric furnace can be accurately controlled, energy IS saved, the thermometer can be IMPAC IS 50-L0 plus, the temperature measuring range IS 550-3500 ℃, the response time IS extremely short and less than 1 millisecond, and the requirement in practical application IS met;
the ladle is arranged on the surface of the moving plate, the moving plate is arranged in a square structure, the pulleys are respectively arranged at four corners of the bottom of the moving plate, and meanwhile, the groove is formed in the center of the surface of the moving plate and matched with the bottom of the ladle, so that the ladle is convenient to transport.
The method of practical operation performed by the preferred embodiment of the present application is as follows:
the first step is as follows: before tapping, the travelling crane hangs a steel ladle into the moving plate, then the travelling crane hangs the protection device body to the position of the steel ladle opening, and the diameter of the outlet end of the protection device body is larger than that of the steel ladle opening, so that the protection device body can be stably hung on the steel ladle opening by the travelling crane without fastening parts;
the second step is that: the ladle car is driven into a steel tapping position, the furnace length of the main control chamber is started to perform argon bottom blowing, then the converter body or the electric furnace body is poured to start tapping, molten steel flows out of a steel tapping hole and enters a ladle through a closed channel of the protection device body, argon bottom blowing gas is discharged from the inlet end of the protection device body, an inert atmosphere is formed near the steel tapping hole to protect the molten steel, and meanwhile, the outward gas has certain pressure and can extrude air near the steel flow to the periphery, so the protection effect of the inert gas after tapping is good;
the third step: after tapping, the converter body and the electric furnace body return to the original positions, the infrared temperature detector starts to measure the temperature and then starts to add alloy, and the size of the inlet end of the protection device body is designed to facilitate the alloy addition;
the fourth step: after the alloy is added, the ladle car is driven to a travelling crane ladle hanging position, the travelling crane hangs the protection device body to a nearby placing position, and then the ladle is hung to a subsequent station.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The meaning of "and/or" as used herein is intended to include both the individual components or both.
The term "connected" as used herein may mean either a direct connection between components or an indirect connection between components via other components.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The utility model provides a be used for converter, electric stove tapping protection and temperature measuring device, includes converter body or electric stove body, sets up out the steel mouth on converter body or electric stove body are close to the lateral wall of port, its characterized in that:
the protection device body is detachably arranged at a ladle opening, and the ladle is arranged on the mobile device;
the protection device body comprises an inlet end and an outlet end, the inlet end is matched with a steel tapping hole of the converter body or the electric furnace body, the outlet end is sleeved at a steel ladle hole, the diameter of the outlet end is larger than that of the inlet end, and the inlet end and the outlet end are smoothly connected through a connecting section to form a communicating channel;
an isolation layer is arranged in the steel ladle close to the bottom of the steel ladle, and an air inlet is formed in the side wall of the steel ladle, which is positioned on the isolation layer, and used for filling argon into the steel ladle.
2. The tapping protection and temperature measurement device for converters and electric furnaces as claimed in claim 1, wherein: the connecting section gradually increases from the inlet end to the outlet end, so that the protection device body is in a conical structure.
3. The tapping protection and temperature measurement device for converters and electric furnaces as claimed in claim 1, wherein: the isolating layer comprises a plurality of air bricks and bases with the same number as the air bricks, the air bricks comprise conical column structures, the diameters of the air bricks are gradually increased from the top ends to the bottom ends, thin tubes are arranged at the center positions of the bottom ends, and the thin tubes are communicated with the conical column structures;
aforementioned base is square structure, and central point puts and sets up the cylinder and leads to the groove, and the cylinder leads to groove diameter and air brick's awl post structure to match, and air brick's bottom is inserted and is established in the cylinder leads to the inslot, every tubule simultaneously with the air inlet intercommunication.
4. The tapping protection and temperature measurement device for converters and electric furnaces as claimed in claim 1, wherein: the protection device body is further provided with a temperature measuring device, the overlapping end is coaxially arranged inside the inlet end of the protection device body, the wall thickness between the inlet end and the overlapping end is widened, a groove is formed between the inlet end and the overlapping end, the temperature measuring device is arranged in the groove, and the surface of the groove is covered with the protection cover.
5. The tapping protection and temperature measurement device for converters and electric furnaces as claimed in claim 4, wherein: the temperature measuring device is an infrared thermometer;
the protective cover is made of transparent material.
6. The tapping protection and temperature measurement device for converters and electric furnaces as claimed in claim 1, wherein: the moving device comprises a moving plate which is arranged in a square structure, pulleys are respectively installed at four corners of the bottom of the moving plate, and a groove is formed in the center of the surface of the moving plate and matched with the bottom of a steel ladle;
the ladle is arranged on the surface of the movable plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921332388.XU CN210636022U (en) | 2019-08-16 | 2019-08-16 | Tapping protection and temperature measuring device for converter and electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921332388.XU CN210636022U (en) | 2019-08-16 | 2019-08-16 | Tapping protection and temperature measuring device for converter and electric furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210636022U true CN210636022U (en) | 2020-05-29 |
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ID=70800183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921332388.XU Active CN210636022U (en) | 2019-08-16 | 2019-08-16 | Tapping protection and temperature measuring device for converter and electric furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210636022U (en) |
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2019
- 2019-08-16 CN CN201921332388.XU patent/CN210636022U/en active Active
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