Probe for thermal analysis of molten iron

Abstract

The utility model discloses a probe for thermal analysis of molten iron, relates to the field of probes for thermal analysis, and aims to solve the problem that in the prior art, only a single quartz tube is mounted to measure the temperature of a specific position of the molten iron in a fixed carbon cup, but the temperatures of different positions of the molten iron are possibly different, so that the measurement result is not accurate enough. According to the probe for the thermal analysis of the molten iron, a first C-shaped annular quartz tube is arranged at the upper end of the middle of the interior of a carbon fixing cup, a second C-shaped annular quartz tube is arranged at the lower end of the middle of the interior of the carbon fixing cup, a first thermocouple is arranged in the first C-shaped annular quartz tube, a second thermocouple is arranged in the second C-shaped annular quartz tube, and the first thermocouple is connected with the second thermocouple. A circular groove is formed in the middle of the bottom end of the carbon fixing cup, a thermal analysis support is arranged at the lower end of the carbon fixing cup, data columns are arranged on the two sides of the middle of the upper end of the thermal analysis support, and a circular rod is arranged on one side of the lower end of the middle of the thermal analysis support.

Description

Technical Field

[0001] The utility model relates to the field of probes for thermal analysis, in particular to a probe for hot metal thermal analysis. Background Technique

[0002] The hot metal analyzer is designed according to the principle of thermal analysis, adopting the technologies of "intelligent dynamic tracking" and "non-linear regression of standard curves", and the result is directly read out by digital display. It works through an improved evaluation method, can automatically control important metallurgical parameters, make up for the deficiency that it is difficult to accurately measure non-metallic elements (C, Si) by "spectroscopy", and plays a quite important role in the quality control of casting production.

[0003] At present, most of the carbon cups of hot metal analyzers adopt a single quartz tube placed at the bottom. A thermocouple is arranged inside the quartz tube. The carbon cup is connected to the analysis base. The probe uses the carbon cup to sense the temperature change of the hot metal to measure the temperature in real time and generate a temperature curve. Installing only a single quartz tube can only measure the temperature at a specific position of the hot metal in the carbon cup, but the temperature at different positions of the hot metal may be different, resulting in inaccurate measurement results. Therefore, there is an urgent need in the market to develop a probe for hot metal thermal analysis to help people solve the existing problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a probe for hot metal thermal analysis to solve the problem that installing only a single quartz tube can only measure the temperature at a specific position of the hot metal in the carbon cup, but the temperature at different positions of the hot metal may be different, resulting in inaccurate measurement results as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A probe for hot metal thermal analysis, including a carbon cup, a thermal analysis support and an analyzer. At the upper end of the middle part inside the carbon cup, a first C-shaped ring quartz tube is arranged. At the lower end of the middle part inside the carbon cup, a second C-shaped ring quartz tube is arranged. A first thermocouple is arranged inside the first C-shaped ring quartz tube. A second thermocouple is arranged inside the second C-shaped ring quartz tube. A circular groove is arranged in the middle of the bottom end of the carbon cup. A ring-shaped thermocouple is arranged in the middle of the inside of the circular groove. A thermal analysis support is arranged at the lower end of the carbon cup. Data columns are arranged on both sides of the middle part of the upper end of the thermal analysis support. A round rod is arranged on one side of the lower end of the middle part of the thermal analysis support. An information transmitter is arranged at one end of the round rod. An information receiver is arranged on one side of the upper end of the analyzer.

[0006] Preferably, rectangular grooves are arranged in the middle of both sides of the carbon cup. Two ports of the first C-shaped ring quartz tube extend from inside the carbon cup through the carbon cup to the inner end face of one side rectangular groove and are sealed with sealing paste. Two ports of the second C-shaped ring quartz tube extend from inside the carbon cup through the carbon cup to the inner end face of the other side rectangular groove and are sealed with sealing paste.

[0007] Preferably, one end of the first thermocouple passes through the middle of the first C-shaped annular quartz tube, and then both ends of the first thermocouple extend downward along one side rectangular groove and are fixedly connected to the annular thermocouple in the circular groove. One end of the second thermocouple passes through the middle of the second C-shaped annular quartz tube, and then both ends of the second thermocouple extend downward along the other side rectangular groove and are fixedly connected to the annular thermocouple in the circular groove.

[0008] Preferably, L-shaped cross-section limiting grooves are provided on both sides of the middle of the bottom end of the carbon cup, and rectangular openings are provided at one end of the two L-shaped cross-section limiting grooves at the bottom end of the carbon cup.

[0009] Preferably, L-shaped limiting parts are provided on both sides of the middle of the upper end of the thermal analysis support and perpendicular to the direction of the two data columns. The carbon cup and the thermal analysis support are rotationally limited and fixed along the L-shaped cross-section limiting groove through the rectangular opening by the L-shaped limiting parts.

[0010] Preferably, the information transmitter on the round rod is wirelessly connected to the information receiver of the analyzer.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. In this utility model, through the arrangement of the first annular quartz tube and the second annular quartz tube, thermocouples are arranged inside both the first annular quartz tube and the second annular quartz tube, and the temperature of different positions of the molten iron in the carbon cup can be measured, making the measurement result more accurate.

[0013] 2. In this utility model, through the arrangement of the L-shaped cross-section limiting groove and the L-shaped limiting part, the carbon cup and the thermal analysis support are rotationally limited and fixed along the L-shaped cross-section limiting groove through the rectangular opening by the L-shaped limiting part, making the connection between the carbon cup and the thermal analysis support more stable and not easy to shake.

[0014] 3. In this utility model, a round rod is provided on one side of the lower end of the middle of the thermal analysis support, an information transmitter is provided at one end of the round rod, an information receiver is provided on one side of the upper end of the analyzer, and the information transmitter on the round rod is wirelessly connected to the information receiver of the analyzer. Each time it is used, there is no need to install the thermocouple compensation wire used in the prior art, making the measurement and analysis more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view of a probe for hot analysis of molten iron of the present utility model;

[0016] Figure 2 is the rear view of the carbon cup of the present utility model;

[0017] Figure 3 is the top view of the carbon cup of the present utility model;

[0018] Figure 4 Bottom view of the carbon-determining cup of the present utility model;

[0019] Figure 5 Cross-sectional view of the carbon-determining cup of the present utility model;

[0020] Figure 6 Top view of the thermal analysis support of the present utility model.

[0021] In the figure: 1. Carbon-determining cup; 101. Rectangular groove; 102. First C-shaped annular quartz tube; 103. Second C-shaped annular quartz tube; 104. First thermocouple; 105. Second thermocouple; 106. Sealing paste; 107. Circular groove; 108. Annular thermocouple; 109. L-shaped cross-section limiting groove; 110. Rectangular opening; 2. Thermal analysis support; 201. Connection plug-in; 202. Data column; 203. L-shaped limiting part; 204. Round rod; 205. Information transmitter; 3. Analyzer; 301. Information receiver. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0023] Please refer to Figure 1-6 , an embodiment provided by the present utility model: A probe for hot metal thermal analysis includes a carbon-determining cup 1, a thermal analysis support 2 and an analyzer 3. A first C-shaped annular quartz tube 102 is arranged at the upper end of the middle part inside the carbon-determining cup 1, and a second C-shaped annular quartz tube 103 is arranged at the lower end of the middle part inside the carbon-determining cup 1. A first thermocouple 104 is arranged inside the first C-shaped annular quartz tube 102, and a second thermocouple 105 is arranged inside the second C-shaped annular quartz tube 103. A circular groove 107 is arranged in the middle of the bottom end of the carbon-determining cup 1, and an annular thermocouple 108 is arranged in the middle of the inside of the circular groove 107. A thermal analysis support 2 is arranged at the lower end of the carbon-determining cup 1. Data columns 202 are arranged on both sides of the middle part of the upper end of the so-called thermal analysis support 2. A round rod 204 is arranged on one side of the lower part of the middle of the thermal analysis support 2, and an information transmitter 205 is arranged at one end of the round rod 204. An information receiver 301 is arranged on one side of the upper end of the analyzer 3.

[0024] Furthermore, rectangular grooves 101 are arranged in the middle of both sides of the carbon-determining cup 1. Two ports of the first C-shaped annular quartz tube 102 pass through the carbon-determining cup 1 from inside the carbon-determining cup 1 and extend to the inner end face of one side rectangular groove 101 and are sealed with sealing paste 106. Two ports of the second C-shaped annular quartz tube 103 pass through the carbon-determining cup 1 from inside the carbon-determining cup 1 and extend to the inner end face of the other side rectangular groove 101 and are sealed with sealing paste 106.

[0025] Further, one end of the first thermocouple 104 passes through the middle of the first C-shaped annular quartz tube 102, and then both ends of the first thermocouple 104 extend downward along the rectangular groove 101 on one side and are fixedly connected to the annular thermocouple 108 in the circular groove 107. One end of the second thermocouple 105 passes through the middle of the second C-shaped annular quartz tube 103, and then both ends of the second thermocouple 105 extend downward along the rectangular groove 101 on the other side and are fixedly connected to the annular thermocouple 108 in the circular groove 107.

[0026] Further, L-shaped cross-section limiting grooves 109 are provided on both sides of the middle of the bottom end of the carbon cup 1, and rectangular openings 110 are provided at one end of the two L-shaped cross-section limiting grooves 109 at the bottom end of the carbon cup 1.

[0027] Further, L-shaped limiting parts 203 are provided on both sides of the middle of the upper end of the thermal analysis support 2 and perpendicular to the direction of the two data columns 202. The carbon cup 1 and the thermal analysis support 2 are rotationally limited and fixed along the L-shaped cross-section limiting groove 109 through the L-shaped limiting parts 203 passing through the rectangular openings 110.

[0028] Further, the information transmitter 205 on the round rod 204 is wirelessly connected to the information receiver 301 of the analyzer 3.

[0029] Working principle: During use, the two L-shaped limiting parts 203 on the thermal analysis support 2 are respectively inserted into the L-shaped cross-section limiting grooves 109 through the two rectangular openings 110 at the bottom end of the carbon cup 1 and rotated counterclockwise to the in-place position. The two data columns 202 provided at the upper end of the thermal analysis support 2 are in close contact with the annular thermocouple 108 in the circular groove 107 at the bottom of the carbon cup 1. The first C-shaped annular quartz tube 102 and the second C-shaped annular quartz tube 103 are arranged inside the carbon cup 1. The first thermocouple 104 and the second thermocouple 105 are respectively arranged on the first C-shaped annular quartz tube 102 and the second C-shaped annular quartz tube 103. After passing through the middle of the first C-shaped annular quartz tube 102 and the second C-shaped annular quartz tube 103 respectively, both ends of the first thermocouple 104 and the second thermocouple 105 extend to the rectangular grooves 101 on both sides of the carbon cup 1 respectively and continue to extend downward into the circular groove 107 to be connected to the annular thermocouple 108. Pour an appropriate amount of molten iron into the carbon cup 1, collect the real-time temperature data of the molten iron through the combination of the quartz tubes, thermocouples and data columns 202 at different positions, send the data through the information transmitter 205 on the round rod 204 in the middle of the thermal analysis support 2, and the analyzer 3 receives the real-time temperature data of the molten iron at different positions through the information receiver 301 for comprehensive analysis to generate a temperature curve.

[0030] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A probe for hot analysis of molten iron, comprising a fixed carbon cup (1), a hot analysis support (2) and an analyzer (3), characterized in that: At the upper end of the middle part inside the carbon determination cup (1), a first C-shaped annular quartz tube (102) is provided. At the lower end of the middle part inside the carbon determination cup (1), a second C-shaped annular quartz tube (103) is provided. Inside the first C-shaped annular quartz tube (102), a first thermocouple (104) is provided. Inside the second C-shaped annular quartz tube (103), a second thermocouple (105) is provided. In the middle of the bottom end of the carbon determination cup (1), a circular groove (107) is provided. In the middle of the inside of the circular groove (107), an annular thermocouple (108) is provided. At the lower end of the carbon determination cup (1), a thermal analysis support (2) is provided. On both sides of the middle part of the upper end of the thermal analysis support (2), data columns (202) are provided. On one side of the lower part of the middle of the thermal analysis support (2), a round rod (204) is provided. At one end of the round rod (204), an information transmitter (205) is provided. On one side of the upper end of the analyzer (3), an information receiver (301) is provided.

2. The probe for hot metal thermal analysis according to claim 1, characterized in that: On both sides of the middle part of the carbon determination cup (1), rectangular grooves (101) are provided. The two ports of the first C-shaped annular quartz tube (102) pass through the carbon determination cup (1) from the inside of the carbon determination cup (1) and extend to the inner end face of one side rectangular groove (101) and are sealed with a sealing paste (106). The two ports of the second C-shaped annular quartz tube (103) pass through the carbon determination cup (1) from the inside of the carbon determination cup (1) and extend to the inner end face of the other side rectangular groove (101) and are sealed with a sealing paste (106).

3. The probe for hot metal thermal analysis according to claim 2, characterized in that: One end of the first thermocouple (104) passes through the middle of the first C-shaped annular quartz tube (102), and then the two ends of the first thermocouple (104) extend downward along the inside of one side rectangular groove (101) and are fixedly connected to the annular thermocouple (108) in the circular groove (107). One end of the second thermocouple (105) passes through the middle of the second C-shaped annular quartz tube (103), and then the two ends of the second thermocouple (105) extend downward along the inside of the other side rectangular groove (101) and are fixedly connected to the annular thermocouple (108) in the circular groove (107).

4. A probe for hot metal thermal analysis according to claim 1, characterized in that: On both sides of the middle part of the bottom end of the carbon determination cup (1), L-shaped cross-section limit grooves (109) are provided. At one end of each of the two L-shaped cross-section limit grooves (109) at the bottom end of the carbon determination cup (1), rectangular openings (110) are provided.

5. The probe for hot metal thermal analysis according to claim 4, characterized in that: On both sides of the middle part of the upper end of the thermal analysis support (2) and in the direction perpendicular to the two data columns (202), L-shaped limit parts (203) are provided. The carbon determination cup (1) and the thermal analysis support (2) are rotationally limited and fixed through the L-shaped limit parts (203) passing through the rectangular openings (110) along the L-shaped cross-section limit grooves (109).

6. The probe for hot metal thermal analysis according to claim 1, characterized in that: The information transmitter (205) on the round rod (204) and the information receiver (301) of the analyzer (3) are connected by a wireless signal.

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