Vacuum continuous casting furnace sampling device

Abstract

The utility model belongs to metal vacuum smelting foundry technical field especially relates to sampling device for vacuum continuous casting furnace, wherein one kind sampling device for vacuum continuous casting furnace, include: temperature measurement subassembly, including connecting rod and thermocouple wire, connecting rod bottom is closed, thermocouple wire is located in temperature measurement cavity, stirring subassembly includes impeller, and the outer wall of connecting rod is threadedly sleeved in impeller, sampling subassembly includes sampling crucible and bolt, and sampling crucible is detachably arranged in the bottom of connecting rod through bolt, sampling crucible inside is equipped with sampling cavity, and the lateral wall is provided with the liquid inlet that communicates with sampling cavity, wherein, sampling, sampling crucible is fixed in the bottom of connecting rod through bolt, and connecting rod moves downward to make sampling crucible immerse in liquid metal. Through the cooperation of detachable sampling subassembly and temperature measurement subassembly, the structure assembly device that measures temperature, stirs and samples is realized, convenient operation, at the same time avoids the collision loss problem of traditional sampling, prolongs the service life of sampling device.

Description

Technical Field

[0001] This utility model belongs to the field of metal vacuum melting and casting technology, and particularly relates to a sampling device for vacuum continuous casting furnaces. Background Technology

[0002] In the field of metal vacuum melting and casting technology, vacuum continuous casting furnaces are widely used to produce single or multi-component metal products. In actual production, it is necessary to monitor the temperature of the molten metal in real time, add stirring to ensure uniform composition, and take samples for testing to verify quality.

[0003] In related technologies, temperature measuring and stirring devices are typically integrated within the turret. However, when sampling is required, operators must remove these devices and install separate sampling devices via chain suspension or robotic gripper. This approach has significant drawbacks: The sampling device is prone to swaying inside the furnace, colliding with the crucible and causing damage to the device and contamination of the solution, increasing maintenance costs. The function switching process is cumbersome, and it is impossible to achieve simultaneous operation of temperature measurement, stirring and sampling, which prolongs the production cycle and makes it unsuitable for efficient mass production.

[0004] Therefore, there is an urgent need for a highly integrated and easy-to-operate sampling device for vacuum continuous casting furnaces to solve the above problems.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore, the above description is not considered to constitute information related to the technology. Utility Model Content

[0006] This disclosure provides at least one sampling device for a vacuum continuous casting furnace.

[0007] This disclosure provides a sampling device for a vacuum continuous casting furnace, comprising: The temperature measuring assembly includes a connecting rod and a thermocouple wire. The bottom of the connecting rod is closed, and a temperature measuring cavity is formed inside it. The thermocouple wire is located inside the temperature measuring cavity. The stirring assembly includes an impeller, which is threaded onto the outer wall of the connecting rod; The sampling assembly includes a sampling crucible and a pin, wherein the sampling crucible is detachably mounted on the bottom of the connecting rod via the pin; The sampling crucible has a sampling chamber inside, and a liquid inlet communicating with the sampling chamber is opened on the side wall; During sampling, the sampling crucible is fixed to the bottom of the connecting rod by a pin, and the connecting rod moves downward to immerse the sampling crucible in liquid metal.

[0008] In one optional embodiment, the connecting rod is a slender rod with a stepped design of its diameter, including a first stepped section, a second stepped section, and a third stepped section. The thermocouple wire is built into the first step section and the second step section; The inner ring of the impeller is threaded into the outer wall of the second step section; The sampling crucible is limited and connected to the third step.

[0009] In one optional embodiment, a positioning hole is provided at the third step of the connecting rod. The positioning hole is a flared hole with large ends to prevent the molten metal from cooling and solidifying and blocking the positioning hole.

[0010] In one optional embodiment, two limiting blocks are symmetrically arranged on the upper part of the sampling crucible, and the limiting blocks are provided with connecting holes that are adapted to the pins. The pin passes through the connecting hole and the positioning hole in sequence to fix the sampling crucible to the bottom of the connecting rod.

[0011] In one optional embodiment, the outer wall of the third step is symmetrically provided with limiting grooves, with one limiting block corresponding to one limiting groove; Two limiting blocks are inserted into the limiting groove in sequence to limit the sampling crucible from flipping relative to the connecting rod during the sampling process.

[0012] In one alternative embodiment, the inner diameter of the sampling chamber of the sampling crucible gradually decreases from top to bottom.

[0013] In one alternative embodiment, the inlet is a downwardly sloping through-hole.

[0014] In one optional embodiment, the temperature measuring component, stirring component, and sampling component are made of the same material as the crucible inside the furnace to avoid introducing impurities that could contaminate the metal solution.

[0015] The beneficial effect of this utility model is that it provides a sampling device for a vacuum continuous casting furnace. By integrating the temperature measurement component, stirring component, and sampling component into a single structure, temperature monitoring, solution stirring, and sample extraction are achieved simultaneously. This eliminates the need for frequent device switching, significantly simplifies the operation process, and improves work efficiency, making it particularly suitable for continuous batch production in vacuum continuous casting furnaces.

[0016] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 A perspective view of a sampling device for a vacuum continuous casting furnace provided in an embodiment of this disclosure; Figure 2 A perspective view of the connecting rod and pin provided in an embodiment of this disclosure; Figure 3 A perspective view of the sampling component provided in an embodiment of this disclosure; Figure 4 A cross-sectional perspective view of the temperature measuring component and the sampling component provided in the embodiments of this disclosure; Figure 5 A sectional perspective view of the connecting rod provided in an embodiment of this disclosure; Figure 6 A cross-sectional front view of the sampling component provided in an embodiment of this disclosure.

[0020] In the picture: 1. Temperature measuring component; 10. Connecting rod; 101. Positioning hole; 11. Thermocouple wire; 12. Temperature measuring chamber; 13. First step; 14. Second step; 15. Third step; 150. Limiting groove; 2. Agitator assembly; 20. Impeller; 3. Sampling assembly; 30. Sampling crucible; 301. Sampling chamber; 302. Liquid inlet; 303. Limiting block; 304. Connecting hole; 31. Plugging pin. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0023] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0024] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of a feature, step, operation, element, and / or component, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or components thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0025] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0026] Research has revealed that in the field of metal vacuum melting and casting technology, vacuum continuous casting furnaces are widely used to produce single or multi-component metal products. In actual production, it is necessary to monitor the temperature of the molten metal in real time, add stirring to ensure uniform composition, and perform sampling and testing to verify quality.

[0027] In related technologies, temperature measuring and stirring devices are typically integrated within the turret. However, when sampling is required, operators must remove these devices and install separate sampling devices via chain suspension or robotic gripper. This approach has significant drawbacks: First, the sampling device is prone to swaying inside the furnace, which can cause damage to the device and contamination of the solution due to collisions with the crucible, increasing maintenance costs. Second, the function switching process is cumbersome, and it is impossible to achieve simultaneous operation of temperature measurement, stirring and sampling, which prolongs the production cycle and is not suitable for efficient mass production.

[0028] Therefore, there is an urgent need for a highly integrated and easy-to-operate sampling device for vacuum continuous casting furnaces to solve the above problems.

[0029] The defects in the above solutions and the reasons for their occurrence are the results of the inventors' practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventors' contributions to this disclosure.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the embodiments and features described below can be used interchangeably.

[0032] like Figures 1 to 6 As shown, at least one embodiment provides a sampling device for a vacuum continuous casting furnace, including: a temperature measuring component 1, a stirring component 2, and a sampling component 3 integrated together, with the temperature measuring component 1 mounted on a turret; through the operation of the turret, the impeller 20 located on the outer wall of the connecting rod 10 and the sampling crucible 30 located at the bottom of the connecting rod 10 are immersed in the molten metal, and with the cooperation of the limiting block 303 and the limiting groove 150, the sampling crucible 30 can be completely submerged in the molten metal.

[0033] Reference Appendix Figure 2 The temperature measuring component 1 includes a connecting rod 10 and a thermocouple wire 11. The bottom of the connecting rod 10 is closed to prevent molten metal from seeping in, and a temperature measuring cavity 12 is formed inside it. The thermocouple wire 11 is located inside the temperature measuring cavity 12. The connecting rod 10 is a slender rod with a stepped thickness design, including a first stepped portion 13, a second stepped portion 14, and a third stepped portion 15. The top of the connecting rod 10 is open, and the thermocouple wire 11 is built into the first stepped portion 13 and the second stepped portion 14. (See attached diagram) Figure 1 and Figure 4 The stirring assembly 2 includes an impeller 20, which is threaded onto the outer wall of the connecting rod 10; the impeller 20 is threaded onto the second step portion 14; the impeller 20 is screwed onto the outer wall of the second step portion 14 of the connecting rod 10 by the thread, so as to achieve quick assembly and disassembly; the material of the impeller 20 is the same as that of the crucible in the furnace, so as to avoid contaminating the metal solution.

[0034] Reference Appendix Figure 2The outer wall of the third step portion 15 is symmetrically provided with limiting grooves 150, and one limiting block 303 corresponds to one limiting groove 150; wherein, two limiting blocks 303 are inserted into the limiting grooves 150 in sequence to limit the sampling crucible 30 from flipping relative to the connecting rod 10 during the sampling process.

[0035] Reference Appendix Figure 3 and Figure 4 The sampling assembly 3 includes a sampling crucible 30 and a pin 31. The sampling crucible 30 is detachably mounted on the bottom of the connecting rod 10 via the pin 31. The sampling crucible 30 is limitedly connected to the third step portion 15. The sampling crucible 30 has a sampling chamber 301 inside, and a liquid inlet 302 communicating with the sampling chamber 301 is opened on its side wall. (See attached diagram) Figure 6 The sampling chamber 301 of the sampling crucible 30 has an inner diameter that gradually decreases from top to bottom. The sampling chamber 301 facilitates smooth sample demolding. The liquid inlet 302 is a downward-sloping through-hole to prevent the molten metal inside the sampling crucible 30 from solidifying and hindering sample detachment. During sampling, the sampling crucible 30 is fixed to the bottom of the connecting rod 10 by a pin 31, and the connecting rod 10 moves downward to immerse the sampling crucible 30 in the liquid metal. Two symmetrically arranged limiting blocks 303 are provided on the upper part of the sampling crucible 30, and each limiting block 303 has a connecting hole 304 adapted to the pin 31; the pin 31 passes through the connecting hole 304 and the positioning hole 101 in sequence to fix the sampling crucible 30 to the bottom of the connecting rod 10.

[0036] Reference Appendix Figure 5 The connecting rod 10 has a positioning hole 101 at the third step 15. The positioning hole 101 is a flared hole with large ends to prevent the molten metal from cooling and solidifying and blocking the positioning hole 101.

[0037] The materials of the temperature measuring component 1, stirring component 2, and sampling component 3 are the same as those of the crucible inside the furnace to avoid introducing impurities that could contaminate the metal solution; furthermore, the materials of the temperature measuring component 1, stirring component 2, and sampling component 3 are graphite or molybdenum alloy.

[0038] The working principle is as follows: The sampling crucible 30 is fixed to the bottom of the connecting rod 10 by a pin 31. At this time, one limiting block 303 corresponds to one limiting groove 150. When the turret drives the connecting rod 10 to move down, the limiting block 303 can prevent the sampling crucible 30 from flipping relative to the connecting rod 10. The sampling crucible 30 is immersed in the molten metal, and the molten metal is injected into the sampling chamber 301 through the downwardly inclined inlet 302.

[0039] While sampling, thermocouple wire 11 monitors the temperature of the molten metal in real time; impeller 20 rotates with connecting rod 10 to uniformly stir the molten metal.

[0040] After sampling, the turret moves upward, and the downward-sloping inlet 302 allows the molten metal in the sampling crucible 30 to be discharged through the inlet 302, preventing blockage after solidification. After cooling, the pin 31 is pulled out, the sampling crucible 30 is removed, and the sample can be taken out by inverting the sampling crucible 30. The design of the sampling chamber 301 allows the sample to slide out naturally without external force.

[0041] Non-sampling mode switching: When only temperature measurement or stirring is required, the sampling crucible 30 can be removed by directly pulling out the pin 31; the flared positioning hole 101 at the bottom of the connecting rod 10 has no residual metal and does not affect repeated assembly. In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0042] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0043] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A sampling device for a vacuum continuous casting furnace, characterized in that, include: Temperature measuring assembly (1) includes a connecting rod (10) and a thermocouple wire (11). The bottom of the connecting rod (10) is closed and a temperature measuring cavity (12) is formed inside it. The thermocouple wire (11) is located inside the temperature measuring cavity (12). The stirring assembly (2) includes an impeller (20) which is threaded onto the outer wall of the connecting rod (10); The sampling assembly (3) includes a sampling crucible (30) and a pin (31). The sampling crucible (30) is detachably mounted on the bottom of the connecting rod (10) via the pin (31). The sampling crucible (30) has a sampling chamber (301) inside and a liquid inlet (302) communicating with the sampling chamber (301) on its side wall. During sampling, the sampling crucible (30) is fixed to the bottom of the connecting rod (10) by a pin (31), and the connecting rod (10) moves downward so that the sampling crucible (30) is immersed in liquid metal.

2. The sampling device for a vacuum continuous casting furnace as described in claim 1, characterized in that, The connecting rod (10) is a slender rod with a stepped design of its diameter, including a first stepped part (13), a second stepped part (14) and a third stepped part (15). The thermocouple wire (11) is placed inside the first step (13) and the second step (14); The inner ring of the impeller (20) is threaded into the outer wall of the second step (14); The sampling crucible (30) is limited and connected to the third step (15).

3. The sampling device for a vacuum continuous casting furnace as described in claim 2, characterized in that, The connecting rod (10) has a positioning hole (101) at the third step (15). The positioning hole (101) is a flared hole with large ends to prevent the molten metal from cooling and solidifying and blocking the positioning hole (101).

4. The sampling device for a vacuum continuous casting furnace as described in claim 3, characterized in that, The sampling crucible (30) is symmetrically provided with two limiting blocks (303) on its upper part, and the limiting blocks (303) are provided with connecting holes (304) that are adapted to the pins (31). The pin (31) passes through the connecting hole (304) and the positioning hole (101) in sequence to fix the sampling crucible (30) to the bottom of the connecting rod (10).

5. The sampling device for a vacuum continuous casting furnace as described in claim 4, characterized in that, The outer wall of the third step (15) is symmetrically provided with limiting grooves (150), and one limiting block (303) corresponds to one limiting groove (150). Two limiting blocks (303) are inserted into the limiting groove (150) in sequence to limit the sampling crucible (30) from flipping relative to the connecting rod (10) during the sampling process.

6. The sampling device for a vacuum continuous casting furnace as described in claim 1, characterized in that, The inner diameter of the sampling cavity (301) of the sampling crucible (30) gradually decreases from top to bottom.

7. The sampling device for a vacuum continuous casting furnace as described in claim 1, characterized in that, The liquid inlet (302) is a downward-sloping through hole.

8. The sampling device for a vacuum continuous casting furnace as described in claim 1, characterized in that, The materials of the temperature measuring component (1), the stirring component (2), and the sampling component (3) are the same as those of the crucible inside the furnace.

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