Metallurgy detection sampling device

Abstract

The invention relates to the technical field of metallurgical sampling devices, in particular to a metallurgical detection sampling device. Comprising an auxiliary pipe and a sampling pipe, the lower portion of the sampling pipe is spirally arranged to form a sampling part, a positioning plug and a plurality of sampling balls are contained in the auxiliary pipe, the positioning plug is located on the upper sides of the sampling balls, the lower end of the auxiliary pipe is communicated with the lower end of the sampling part to form a feeding section, and the outer end of the feeding section is detachably connected with a limiting ring; the inner diameter of the limiting ring is smaller than the diameter of the sampling ball; the diameter of the sampling ball is the same as the inner diameter of the sampling part, air enters the upper end of the auxiliary pipe, air pressure pushes the positioning plug and the sampling ball to move downwards into the feeding section, the upper end of the sampling pipe sucks, the sampling ball moves upwards along the sampling part, molten steel is driven to move upwards along the sampling part, and sampling is completed. Each group of balls can independently drive molten steel to rise under the driving of air pressure, and the subsequent sampling balls can separate the extracted molten steel samples and synchronously extract new samples, so that multiple independent samples can be obtained at one time, and the detection efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of metallurgical sampling devices, in particular to a metallurgical detection sampling device. Background Art

[0002] In metallurgical production, real-time monitoring of molten steel composition is crucial for quality control. Traditional sampling methods often use a straight-tube sampler inserted into the molten steel, extracting samples through negative pressure suction or gravity flow. However, these methods can only obtain a single sample at a time, making it difficult to meet the needs of multi-batch testing. Furthermore, the molten steel is susceptible to solidification or oxidation due to temperature drops during its rise, affecting the accuracy of its composition. Therefore, a specialized device is urgently needed that can efficiently collect multiple pure molten steel samples and has thermal insulation and anti-solidification functions. Summary of the Invention

[0003] In order to solve the above problems, the present invention provides a metallurgical detection sampling device.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a metallurgical detection sampling device, comprising an auxiliary tube and a sampling tube, the lower portion of the sampling tube being spirally arranged to form a sampling portion, the interior of the auxiliary tube accommodating a positioning plug and a plurality of sampling balls, the positioning plug being located above the sampling balls, the lower end of the auxiliary tube being connected to the lower end of the sampling portion to form a feeding section, the outer end of the feeding section being detachably connected to a limiting ring, the inner diameter of the limiting ring being smaller than the diameter of the sampling balls; The diameter of the sampling ball is the same as the inner diameter of the sampling part. Air is taken in from the upper end of the auxiliary tube, and the air pressure pushes the positioning plug and the sampling ball downward to the inside of the feeding section. The upper end of the sampling tube draws suction, causing the sampling ball to move upward along the sampling part, driving the molten steel upward along the sampling part to complete the sampling.

[0005] As an optimization, the number of the sampling balls is not less than 2n, where n is a natural number not less than 2. When sampling, two sampling balls are lowered simultaneously as a group. The sampling balls move upward along the sampling portion to suck the molten steel. When the next set of sampling balls moves upward, the molten steel on the upper side is separated and the molten steel on the lower side is sucked at the same time, which is used for sampling multiple samples.

[0006] As an optimization, a limiting component is provided at the intersection of the feed section, the auxiliary pipe and the sampling portion, and the limiting component is fixed on the side of the feed away from the sampling portion; The limiting assembly includes a telescopic rod and a limiting end piece. The telescopic rod is fixed to the outside of the feeding section. The extended end of the telescopic rod is connected to the limiting end piece. The upper and lower sides of the limiting end piece are inclined guide slopes. When the limiting end piece is lifted, the sampling ball on the upper side is limited without affecting the movement of the sampling ball on the lower side into the sampling part.

[0007] As an optimization, an operating table is arranged between the auxiliary tube and the sampling tube, the operating table is provided with a clamping groove, the operating table is provided with two inserts, the auxiliary tube and the sampling tube are provided with corresponding insertion holes, and when the inserts are fully inserted into the insertion holes, the auxiliary tube and the sampling tube are in a sealed state; When the inserting piece and the inserting hole are staggered, the auxiliary tube and the sampling tube are in a through-state.

[0008] As an optimization, a spirally distributed heating wire is provided on the outside of the sampling part, the upper end of the heating wire is connected to the operating table, and the operating table is detachably connected to a heater, which is used to connect the heating wire to heat and keep the sampling part warm.

[0009] As an optimization, the sampling part includes a sampling state and a discharge state. In the sampling state, the limiting ring is connected to the lower end of the sampling part to limit the limiting ball; in the discharge state, the limiting ring is removed to allow the limiting ball and molten steel to flow out from the lower end of the feed section.

[0010] As an optimization, the auxiliary tube includes an auxiliary section and an extension section, the extension section is vertically arranged parallel to the upper portion of the sampling tube, and the operating table is provided with a connection between the auxiliary section and the extension section; A positioning frame is connected between the upper part of the extension section and the upper part of the sampling tube.

[0011] The beneficial effects of this program are as follows: The sampling tube is designed as a spiral ascending channel, combined with sampling balls that can be lowered in groups. Each group of balls can independently drive the molten steel upward under air pressure. Subsequent sampling balls can separate the extracted molten steel samples and extract new samples simultaneously, achieving multiple independent samples at one time, greatly improving detection efficiency. The spirally distributed heating wire (connected to a detachable heater) continuously heats the sampling part to maintain the fluidity of the molten steel, prevent solidification caused by a sudden drop in temperature, and ensure the representativeness of the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0013] Figure 2 It is a schematic diagram of the axial side of the present invention.

[0014] Figure 3 It is a schematic diagram of the bottom axis side of the present invention.

[0015] Figure 4 It is a main schematic diagram of the present invention.

[0016] Figure 5 For the present invention Figure 4 AA cross-section structure diagram.

[0017] Figure 6 For the present invention Figure 4 Schematic diagram of the BB partial cross-section structure.

[0018] Among them, 1. Auxiliary tube, 2. Sampling tube, 3. Sampling part, 4. Positioning plug, 5. Sampling ball, 6. Feeding section, 7. Limiting ring, 8. Telescopic rod, 9. Limiting end piece, 10. Operating table, 11. Clamping groove, 12. Insert, 13. Heating wire, 14. Heater, 15. Positioning frame. DETAILED DESCRIPTION

[0019] like Figures 1-6 As shown, a metallurgical detection sampling device includes an auxiliary tube 1 and a sampling tube 2. The lower portion of the sampling tube 2 is spirally arranged to form a sampling portion 3. The interior of the auxiliary tube 1 accommodates a positioning plug 4 and a plurality of sampling balls 5. The positioning plug 4 is located above the sampling balls 5. The lower end of the auxiliary tube 1 and the lower end of the sampling portion 3 are connected to form a feeding section 6. The outer end of the feeding section 6 is detachably connected to a limiting ring 7. The inner diameter of the limiting ring 7 is smaller than the diameter of the sampling balls 5. The diameter of the sampling ball 5 is the same as the inner diameter of the sampling part 3. Air is taken in from the upper end of the auxiliary tube 1, and the air pressure pushes the positioning plug 4 and the sampling ball 5 downward to the inside of the feeding section 6. The upper end of the sampling tube 2 draws suction, causing the sampling ball 5 to move upward along the sampling part 3, driving the molten steel upward along the sampling part 3 to complete the sampling.

[0020] The upper portion of the auxiliary tube 1 is arranged vertically parallel to the upper portion of the sampling tube 2. When sampling, the sampling portion 3 is completely immersed in the molten steel.

[0021] Limiting ring 7 is used to limit the position of sampling balls 5. Sampling balls 5 are moved from auxiliary tube 1 into feed section 6. Under the action of suction, they spiral upward along sampling section 3, simultaneously driving molten steel into sampling section 3 to form a molten steel sample. After the set sampling volume is reached, the next set of sampling balls 5 is released, and the lower end of the molten steel sample is sealed by the sampling balls 5. When suction continues, the molten steel sample and sampling balls 5 move upward, and the next set of molten steel samples also follow into sampling section 3, completing two sets of sampling, and so on.

[0022] like Figure 5 As shown, the number of the sampling balls 5 is not less than 2n, where n is a natural number not less than 2. When sampling, two sampling balls 5 are lowered at the same time as a group. The sampling balls 5 move upward along the sampling portion 3 to suck the molten steel. When the next group of sampling balls 5 moves upward, the molten steel on the upper side is separated and the molten steel on the lower side is sucked at the same time, which is used for sampling multiple samples.

[0023] If five different molten steel samples need to be sampled, at least six sets of sampling balls 5 are required to separate and seal the upper and lower ends of each molten steel sample.

[0024] like Figure 5 As shown, a limiting assembly is provided at the intersection of the feed section 6, the auxiliary pipe 1 and the sampling portion 3, and the limiting assembly is fixed to the side of the feed section 6 away from the sampling portion 3; The limiting assembly includes a telescopic rod 8 and a limiting end piece 9. The telescopic rod 8 is fixed to the outside of the feeding section 6. The extended end of the telescopic rod 8 is connected to the limiting end piece 9. The upper and lower sides of the limiting end piece 9 are inclined guide slopes. When the limiting end piece 9 is lifted, the upper sampling ball 5 is limited without affecting the movement of the lower sampling ball 5 into the sampling part 3.

[0025] The axis of the telescopic rod 8 is set along the tangent of the connection between the sampling part 3 and the auxiliary tube 1. When the telescopic rod 8 is extended, it can simultaneously limit the sampling balls 5 on both sides, so that the sampling ball 5 on the upper side cannot move downward, and the sampling ball 5 on the lower side can only move toward the inside of the sampling part 3.

[0026] like Figure 4 and Figure 5 As shown, an operating table 10 is disposed between the auxiliary tube 1 and the sampling tube 2. The operating table 10 is provided with a clamping groove 11 and two inserting pieces 12. The auxiliary tube 1 and the sampling tube 2 are provided with corresponding insertion holes. When the inserting pieces 12 are fully inserted into the insertion holes, the auxiliary tube 1 and the sampling tube 2 are in a sealed state. When the inserting piece 12 is staggered from the insertion hole, the auxiliary tube 1 and the sampling tube 2 are in a through-state.

[0027] During the sampling process, the clamping device is connected to the clamping groove 11 to drive the entire device to move. After the sampling is completed, the insert 12 is fully inserted into the socket to close the sampling part 3 and the auxiliary tube 1.

[0028] like Figure 1 As shown, a spirally distributed heating wire 13 is provided on the outside of the sampling part 3, and the upper end of the heating wire 13 is connected to the operating table 10. The operating table 10 is detachably connected to a heater 14, and the heater 14 is used to connect the heating wire 13 to heat and keep the sampling part 3 warm.

[0029] After the sampling is completed, the heater 14 is connected to the operating table 10, and the heating wire 13 is powered on to reduce the heat loss of the sampling part 3 through the heater 14, so that the molten steel remains in a fluid state.

[0030] The sampling portion 3 may also be a double-layer tube wall, with silicon nitride aerogel filled between the double-layer tube walls to achieve gradient thermal insulation.

[0031] The sampling part 3 includes a sampling state and a discharge state. In the sampling state, the limiting ring 7 is connected to the lower end of the sampling part 3 to limit the limiting ball; in the discharge state, the limiting ring 7 is removed to allow the limiting ball and molten steel to flow out from the lower end of the feed section 6.

[0032] like Figure 1 As shown, the auxiliary tube 1 includes an auxiliary section and an extension section, the extension section is vertically arranged parallel to the upper portion of the sampling tube 2, and the operating table 10 is provided with a connection portion between the auxiliary section and the extension section; A positioning frame 15 is connected between the upper portion of the extension section and the upper portion of the sampling tube 2 .

[0033] The auxiliary section and the extension section are plugged in, and the upper portion of the sampling tube 2 and the sampling portion 3 below the operating table 10 are also plugged in. After the sampling is completed, the portion above the operating table 10 can be removed.

[0034] The positioning frame 15 and the operating table 10 are set in a common position to firmly connect the auxiliary tube 1 and the sampling tube 2. The upper ends of the auxiliary tube 1 and the sampling tube 2 are both equipped with air pumps. The auxiliary tube 1 is inflated by the air pump to push the positioning plug 4 and the sampling ball 5 to move. The air pump evacuates the sampling tube 2, driving the sampling ball 5 and the molten steel upward along the sampling part 3 to complete the sampling.

[0035] Directions: When the device is used, the positioning plug 4 and a suitable number of sampling balls 5 are first placed inside the auxiliary tube 1, the telescopic rod 8 is extended, the lower side of the sampling balls 5 is limited by the limiting end piece 9, and the limiting ring 7 is connected to the lower end of the feeding section 6; Check the position of the insert 12 and pull it out at least 1 / 2 of the way from the pipe to keep the interior of the auxiliary pipe 1 and the sampling pipe 2 unobstructed; Remove the heater 14 and immerse the sampling part 3 into the molten steel to a suitable depth; The auxiliary tube 1 is pressurized by the air pump, and the air pressure pushes the positioning plug 4 and the sampling balls 5 downward, and at the same time the telescopic rod 8 is retracted, so that the first group of sampling balls 5 moves downward into the feeding section 6. The telescopic rod 8 is extended, and the limiting end piece 9 separates and limits the two adjacent groups of sampling balls 5; The sampling tube 2 is sucked by an air pump, and the air pressure drives the first set of sampling balls 5 and the molten steel upward along the sampling portion 3. According to the required sample amount, the suction is carried out for a certain period of time and then the pressure is stabilized so that the position of the first set of sampling balls 5 and the sampling portion 3 remains unchanged; At the same time, the telescopic rod 8 is shortened, the second set of sampling balls 5 is lowered, and the entire device is moved to the next sampling position, and the above steps are repeated. The first molten steel sample is between the second set of sampling balls 5 and the first set of sampling balls 5, and so on.

[0036] After the sampling is completed, the device is lifted up as a whole, the operating table 10 is clamped by the clamping device, the extension section of the auxiliary pipe 1 and the upper part of the sampling pipe 2 are removed, and the insert 12 is fully inserted into the socket to seal the pipe to prevent the molten steel from flowing out; Connect the heater 14 to the operating table 10 to heat the sampling portion 3 through the heating wire 13 to reduce the temperature loss of the sampling portion 3 and keep the molten steel sample fluid; When molten steel samples need to be tested, the sampling limit ring 7 is removed and the insert 12 is opened, allowing the molten steel and sampling ball 5 to move downward along the sampling portion 3 to release multiple molten steel samples separately. Adjacent molten steel samples are separated by two sampling balls 5 to prevent mixing of the molten steel samples.

[0037] During the sampling process, air pressure is provided by inert gas, and the sampling ball 5 is made of high-temperature resistant ceramic material, which is selected according to actual usage.

[0038] The above-mentioned specific embodiments are only specific cases of the present invention. The patent protection scope of the present invention includes but is not limited to the product form and style of the above-mentioned specific embodiments. Any metallurgical detection and sampling device that conforms to the claims of the present invention and any appropriate changes or modifications made thereto by ordinary technicians in any corresponding technical field shall fall within the patent protection scope of the present invention.

Claims

1. A metallurgical detection sampling device, characterized in that: The invention comprises an auxiliary tube (1) and a sampling tube (2), wherein the lower part of the sampling tube (2) is spirally arranged to form a sampling portion (3), and a positioning plug (4) and a plurality of sampling balls (5) are accommodated inside the auxiliary tube (1), wherein the positioning plug (4) is located on the upper side of the sampling balls (5), and the lower end of the auxiliary tube (1) and the lower end of the sampling portion (3) are connected to form a feeding section (6), and the outer end of the feeding section (6) is detachably connected to a limiting ring (7), and the inner diameter of the limiting ring (7) is smaller than the diameter of the sampling balls (5); The diameter of the sampling ball (5) is the same as the inner diameter of the sampling portion (3). Air is introduced into the upper end of the auxiliary tube (1), and the air pressure pushes the positioning plug (4) and the sampling ball (5) downward to the inside of the feeding section (6). The upper end of the sampling tube (2) draws suction, causing the sampling ball (5) to move upward along the sampling portion (3), driving the molten steel upward along the sampling portion (3), thereby completing the sampling.

2. A metallurgical detection sampling device according to claim 1, characterized in that: The number of the sampling balls (5) is not less than 2n, where n is a natural number not less than 2. When sampling, two sampling balls (5) are lowered at the same time as a group. The sampling balls (5) move upward along the sampling portion (3) to suck the molten steel. When the next group of sampling balls (5) moves upward, the molten steel on the upper side is separated and the molten steel on the lower side is sucked at the same time, which is used for sampling multiple samples.

3. A metallurgical detection sampling device according to claim 1, characterized in that: A limiting assembly is provided at the intersection of the feed section (6), the auxiliary tube (1) and the sampling portion (3), and the limiting assembly is fixed to a side of the feed section (6) away from the sampling portion (3); The limiting assembly comprises a telescopic rod (8) and a limiting end piece (9), wherein the telescopic rod (8) is fixed to the outside of the feeding section (6), and the extended end of the telescopic rod (8) is connected to the limiting end piece (9), and the upper side and the lower side of the limiting end piece (9) are inclined guide slopes. When the limiting end piece (9) is lifted, the upper sampling ball (5) is limited, while the lower sampling ball (5) is not affected to move toward the inside of the sampling part (3).

4. A metallurgical detection sampling device according to claim 1, characterized in that: An operating table (10) is arranged between the auxiliary tube (1) and the sampling tube (2), the operating table (10) is provided with a clamping groove (11), the operating table (10) is provided with two inserting pieces (12), the auxiliary tube (1) and the sampling tube (2) are provided with corresponding insertion holes, and when the inserting pieces (12) are fully inserted into the insertion holes, the auxiliary tube (1) and the sampling tube (2) are in a closed state; When the insert (12) and the insertion hole are staggered, the auxiliary tube (1) and the sampling tube (2) are in a through-connection state.

5. A metallurgical detection sampling device according to claim 4, characterized in that: A spirally distributed heating wire (13) is provided on the outside of the sampling portion (3), the upper end of the heating wire (13) is connected to the operating table (10), and the operating table (10) is detachably connected to a heater (14), and the heater (14) is used to connect the heating wire (13) to heat and keep the sampling portion (3) warm.

6. The metallurgical detection sampling device according to claim 1, characterized in that: The sampling portion (3) includes a sampling state and a discharge state. In the sampling state, the limiting ring (7) is connected to the lower end of the sampling portion (3) to limit the limiting ball; in the discharge state, the limiting ring (7) is removed to allow the limiting ball and molten steel to flow out from the lower end of the feed section (6).

7. The metallurgical detection sampling device according to claim 4, characterized in that: The auxiliary tube (1) comprises an auxiliary section and an extension section, the extension section is arranged vertically parallel to the upper portion of the sampling tube (2), and the operating table (10) is provided with a connection portion between the auxiliary section and the extension section; A positioning frame (15) is connected between the upper portion of the extension section and the upper portion of the sampling tube (2).

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