Molten iron temperature measuring and sampling composite probe

Abstract

The utility model discloses a molten iron temperature measuring and sampling composite probe which comprises a molten iron temperature measuring and sampling composite probe mechanism and a molten iron inlet liquid filtering assembly, the molten iron inlet liquid filtering assembly comprises a fixed cover disc, a long rod is fixedly installed in the fixed cover disc, the lower end of the fixed cover disc is fixedly installed at the upper end of an outer wall pipe, and the long rod is fixedly installed at the lower end of the outer wall pipe. Through two-stage filtration, large-particle impurities and part of small-particle impurities in molten iron can be effectively removed, the accuracy of temperature measurement and sampling is improved, and the situation that molten iron solid residues are possibly accumulated in a pipeline of a probe or a sampling chamber is avoided; unsuccessful sampling caused by influence on flowing of the molten iron due to pipeline blockage is avoided, so that the molten iron forms rotational flow when flowing into the round sample sampling chamber, and precipitation and separation of impurities are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging equipment, in particular to a composite probe for measuring and sampling molten iron temperature. Background Art

[0002] The field of composite probes for molten iron temperature measurement and sampling involves a device used for temperature measurement and sampling analysis of molten iron during the ironmaking process of a metallurgical blast furnace. The composite probe for molten iron temperature measurement and sampling is a device that integrates temperature measurement and sample collection functions. It usually includes components such as a temperature measuring thermocouple, a protective cover, and a sample preparation chamber. The device is mainly used to quickly measure the temperature of molten iron during the molten iron processing process and obtain samples of molten iron for analysis. This plays an important role in optimizing the steelmaking process and improving the quality of steel products.

[0003] The prior art discloses a technical solution for a composite probe for sampling and measuring the temperature of molten iron round samples, which includes a paper tube. A slag breaking cap is provided at one end of the paper tube. The paper tube is a hollow cylindrical structure. Coated sand is provided at the end of the paper tube close to the slag breaking cap. The coated sand fills the entire interior of the paper tube. The coated sand passes through the paper tube close to the slag breaking cap to form a cylinder with the same diameter as the paper tube. An annular protrusion is provided at the end of the coated sand close to the slag breaking cap. The slag breaking cap buckle box is on the outer periphery of the annular protrusion, making the slag breaking cap more secure and not easy to fall off. A connecting component is provided at the end of the paper tube away from the slag breaking cap.

[0004] The current molten iron temperature measurement and sampling composite probe, when the molten iron flows from the liquid inlet into the liquid inlet chamber and enters the circular sampling chamber, there is solid residue in the molten iron. The solid residue may accumulate in the probe pipe or sampling chamber, especially in narrow channels. This may cause the pipe to be blocked, affecting the flow of molten iron, resulting in unsuccessful sampling, and may also require additional maintenance work to clear the blockage. Utility Model Content

[0005] The purpose of the utility model is to provide a composite probe for measuring and sampling molten iron temperature, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a molten iron temperature measurement and sampling composite probe, including a molten iron temperature measurement and sampling composite probe mechanism and a molten iron liquid inlet filter assembly, characterized in that: the molten iron liquid inlet filter assembly includes a fixed cover plate, a long rod is fixedly installed inside the fixed cover plate, the lower end of the fixed cover plate is fixedly installed on the upper end of the outer wall tube, the lower end of the long rod is fixedly installed with a first filter mesh plate, the first filter mesh plate is arranged inside a circular pipe, and the lower end of the circular pipe is installed by welding to connect and fix a conical leakage pipe.

[0007] As a further preferred embodiment of the present technical solution, a circular sampling chamber is installed at the lower end of the conical leakage tube, and a ball-milled iron pad is installed at the lower end of the circular sampling chamber.

[0008] As a further preferred embodiment of the present technical solution, a liquid inlet is provided on the outside of one end of the circular pipe and the outer wall tube, a moving block is installed inside the liquid inlet, and the moving block is connected to the inside of the moving guide rail groove by sliding.

[0009] As a further preferred embodiment of the present technical solution, the movable guide rail groove is opened inside the upper and lower ends of the second filter tank, and a slot hole is opened inside the second filter tank.

[0010] As a further preferred embodiment of the present technical solution, the interior of the movable guide rail groove of the second filter tank is connected and fixed to the movable block via a connecting bolt.

[0011] As a further preferred embodiment of the present technical solution, coated sand is provided inside the outer wall tube, and a ball-milled iron pad is provided on the upper end of the coated sand.

[0012] As a further preferred embodiment of the present technical solution, a temperature measuring head is provided at the lower end of the coated sand, and the temperature measuring head is installed in the slag breaking cap.

[0013] The utility model provides a composite probe for measuring and sampling molten iron temperature, which has the following beneficial effects:

[0014] (1) The slot holes of the second filter tank of the utility model can block the fixed large particles and some small particles of impurities in the molten iron to the outside. After that, the first filter plate at the lower end of the long rod fixedly installed inside the fixed cover plate will block the small fixed particles from entering the circular pipe. After the molten iron passes through the first filter plate and the conical leakage pipe, it enters the circular sampling chamber. At this time, the molten iron has been filtered twice and most of the impurities have been filtered out. Through two-stage filtration, the large particles and some small particles of impurities in the molten iron can be effectively removed, the accuracy of temperature measurement and sampling can be improved, and the accumulation of solid residues in the molten iron in the pipe or sampling chamber of the probe can be avoided, and the blockage of the pipe can be avoided to affect the flow of the molten iron and cause unsuccessful sampling, so that the molten iron forms a vortex when flowing into the circular sampling chamber, which is conducive to the precipitation and separation of impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the circular pipe and liquid inlet structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the second filter tank and slot structure of the present invention;

[0019] Figure 5 This is a schematic diagram of the first filter screen structure of the present invention;

[0020] In the figure: 100, molten iron temperature measurement and sampling composite probe mechanism; 101, outer wall tube; 102, slag breaking cap; 103, ball mill iron pad; 104, coated sand; 105, temperature measuring head; 200, molten iron inlet filter assembly; 201, fixed cover plate; 202, liquid inlet; 205, long rod; 206, circular pipe; 207, conical leakage pipe; 208, first filter screen plate; 209, circular sampling chamber; 211, moving block; 214, second filter tank; 215, slot hole; 216, movable guide rail slot; 217, connecting bolt. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0022] The utility model provides a technical solution: Figure 1-2 、 Figure 5 As shown, in this embodiment, a molten iron temperature measurement and sampling composite probe includes a molten iron temperature measurement and sampling composite probe mechanism 100 and a molten iron liquid inlet filter assembly 200, and is characterized in that: the molten iron liquid inlet filter assembly 200 includes a fixed cover plate 201, a long rod 205 is fixedly installed inside the fixed cover plate 201, the lower end of the fixed cover plate 201 is fixedly installed on the upper end of the outer wall tube 101, the lower end of the long rod 205 is fixedly installed with a first filter screen 208, the first filter screen 208 is arranged inside the circular pipe 206, the lower end of the circular pipe 206 is installed with a conical leakage pipe 207 connected and fixed by welding, the lower end of the conical leakage pipe 207 is installed with a circular sample sampling chamber 209, and the lower end of the circular sample sampling chamber 209 is installed with a ball-milled iron pad 103.

[0023] like Figure 2 、 Figure 3-4 As shown, a liquid inlet 202 is provided on the outside of one end of the circular pipe 206 and the outer wall tube 101, and a moving block 211 is installed inside the liquid inlet 202. The moving block 211 is connected to the inside of the moving guide rail groove 216 by sliding. The moving guide rail groove 216 is opened inside the upper and lower ends of the second filter tank 214. A slot hole 215 is opened inside the second filter tank 214. The inside of the moving guide rail groove 216 of the second filter tank 214 is connected and fixed to the moving block 211 through a connecting bolt 217.

[0024] By inserting the molten iron temperature measurement and sampling composite probe into the molten iron, the molten iron enters the circular pipe 206 through the liquid inlet 202, and the molten iron liquid passes through the slot 215 of the second filter tank 214, which can block the fixed large particle impurities and some small particle impurities in the molten iron to the outside. Afterwards, the first filter plate 208 at the lower end of the long rod 205 fixedly installed inside the fixed cover plate 201 will block the fine fixed particle impurities from entering the inside of the circular pipe 206. After passing through the first filter plate 208 and the conical leakage pipe 207, the molten iron enters the circular sampling chamber 209. At this time, the molten iron has been filtered twice and most of the impurities have been filtered out. Through two-stage filtration, large particle impurities and some small particle impurities in the molten iron can be effectively removed, thereby improving the accuracy of temperature measurement and sampling, avoiding the accumulation of solid residue in the molten iron in the pipe or sampling chamber of the probe, and avoiding pipe blockage that affects the flow of molten iron and causes unsuccessful sampling, so that the molten iron forms a vortex when flowing into the circular sampling chamber 209, which is conducive to the precipitation and separation of impurities.

[0025] like Figure 1-2 As shown, the interior of the outer wall tube 101 is provided with coated sand 104 , the upper end of the coated sand 104 is provided with a ball-milled iron pad 103 , the lower end of the coated sand 104 is provided with a temperature measuring head 105 , and the temperature measuring head 105 is installed inside the slag breaking cap 102 .

[0026] The utility model provides a composite probe for measuring and sampling the temperature of molten iron, and its specific working principle is as follows: the composite probe for measuring and sampling the temperature of molten iron is inserted into the molten iron, and the molten iron enters the circular pipe 206 through the liquid inlet 202, and the molten iron liquid passes through the slot 215 of the second filter tank 214, which can block the fixed large particles of impurities and some small particles of impurities in the molten iron from the outside. After that, the first filter plate 208 at the lower end of the long rod 205 fixedly installed inside the fixed cover plate 201 will block the small fixed particles of impurities from entering the circular pipe 206. After the molten iron passes through the first filter plate 208 and the conical leakage pipe 207, it enters the circular sampling chamber 209. At this time, the molten iron has been filtered twice, and most of the impurities The impurities have been filtered out. Through two-stage filtration, large particles of impurities and some small particles of impurities in the molten iron can be effectively removed, improving the accuracy of temperature measurement and sampling, avoiding the accumulation of solid residues in the molten iron in the pipe or sampling chamber of the probe, avoiding pipe blockage that affects the flow of molten iron and causes sampling failure, so that the molten iron forms a vortex when flowing into the circular sampling chamber 209, which is conducive to the precipitation and separation of impurities. First, the molten iron temperature measurement and sampling composite probe is inserted into the molten iron, and the slag cap 102 is used to prevent slag in the molten iron from entering the temperature measuring head 105 area, ensuring that the temperature measuring head 105 can accurately measure the actual temperature of the molten iron without being affected by the slag, and is used to further filter impurities in the molten iron. Its surface may have a certain degree of roughness, which helps to capture and remove small particles of impurities in the molten iron. In this probe, the coated sand 104 may be used to protect the internal structure from being eroded by the high-temperature molten iron.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A molten iron temperature measurement and sampling composite probe, comprising a molten iron temperature measurement and sampling composite probe mechanism (100) and a molten iron inlet filter assembly (200), characterized in that: The molten iron inlet filter assembly (200) includes a fixed cover plate (201), a long rod (205) is fixedly installed inside the fixed cover plate (201), the lower end of the fixed cover plate (201) is fixedly installed on the upper end of the outer wall tube (101), and a first filter screen (208) is fixedly installed on the lower end of the long rod (205), and the first filter screen (208) is arranged inside the circular pipe (206), and the lower end of the circular pipe (206) is connected and fixed by welding to a conical leakage pipe (207).

2. The molten iron temperature measurement and sampling composite probe according to claim 1, characterized in that: A circular sampling chamber (209) is installed at the lower end of the conical leakage tube (207), and a ball-milled iron pad (103) is installed at the lower end of the circular sampling chamber (209).

3. The composite probe for measuring and sampling molten iron temperature according to claim 1, characterized in that: A liquid inlet (202) is provided on the outside of one end of the circular pipe (206) and the outer wall pipe (101), and a moving block (211) is installed inside the liquid inlet (202). The moving block (211) is connected to the inside of the moving guide groove (216) by sliding.

4. The composite probe for measuring and sampling molten iron temperature according to claim 3, characterized in that: The movable guide rail groove (216) is provided inside the upper and lower ends of the second filter tank (214), and a slot hole (215) is provided inside the second filter tank (214).

5. The composite probe for measuring and sampling molten iron temperature according to claim 4, characterized in that: The interior of the movable guide rail groove (216) of the second filter tank (214) is connected and fixed to the movable block (211) via a connecting bolt (217).

6. The composite probe for measuring and sampling molten iron temperature according to claim 1, characterized in that: The outer wall tube (101) is provided with coated sand (104) inside, and the upper end of the coated sand (104) is provided with a ball-milled iron pad (103).

7. The composite probe for measuring and sampling molten iron temperature according to claim 6, characterized in that: A temperature measuring head (105) is provided at the lower end of the coated sand (104), and the temperature measuring head (105) is installed inside the slag breaking cap (102).

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