Furnace front liquid silicon cleaning and sampling device

Abstract

The utility model relates to a furnace front liquid silicon cleaning and sampling device which comprises a handle, a sampling part is fixedly mounted at one end of the handle, a sample containing groove is formed in the surface of the sampling part, and a filling concave cavity is formed in the bottom of the sample containing groove. And a filling layer is arranged in the filling concave cavity. The outer wall of the sampling part is sleeved with a barrel, and the surface of one side of the barrel is fixedly connected with a baffle. And the sample containing groove is of an inverted trapezoidal structure. The outer wall surface of the sampling part is sleeved with a hoop sleeve. The hoop sleeve is positioned at the joint of the sampling part and the handle. And the filling layer is graphite powder. And the sampling part is a carbon rod. The liquid silicon collector has the beneficial effects of reasonable structural design, novel conception, convenience in operation, heat resistance, wear resistance, oxidation resistance, corrosion resistance, simplicity and convenience in processing and manufacturing, cost saving and capability of collecting liquid silicon.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling equipment in front of high-purity silicon smelting furnaces, and specifically relates to a cleaning sampling device for liquid silicon in front of the furnace. Background Technique

[0002] High-purity silicon is a high-end silicon series product with high added value, and has extremely high requirements for the smelting process and auxiliary processes. Any deviation in any link may cause the final product to be unqualified.

[0003] In previous sampling operations, sampling operators used iron sampling devices. The liquid silicon samples taken by such sampling devices often have a high iron content, and the analyzed components do not represent the industrial silicon products smelted in the submerged arc furnace.

[0004] The temperature of liquid silicon can reach about 1600°C. The iron sampling device is not durable at high temperatures, and after the high-temperature silicon liquid taken solidifies, it is easy to stick to the inner wall of the sampling device and is not easy to take out.

[0005] The publication number is: CN217505292U, and the name is: A sampling device in front of the furnace for the production of superalloys. The specific structure includes a sampling cup, a sleeve and a rod, and a sampling port is arranged in the middle of the sampling cup. This sampling device in front of the superalloy furnace can achieve rapid sampling during the vacuum melting process of superalloys, and achieve precise control of the chemical composition of the superalloy master alloy. The device has a complex structure, is not conducive to maintenance, and cannot collect liquid silicon.

[0006] The publication number is: CN203148728U, and the name is: A liquid silicon sampler. The specific structure of the liquid silicon sampler includes a bracket and a pot body. A liquid silicon accommodation space with an opening is formed inside the pot body, and the pot body is detachably connected to the bracket; the bracket can further include a bracket main body and a handle. One end of the bracket main body is connected to the pot body, and the other end of the bracket main body is detachably connected to the handle. The utility model can be widely used in the sampling operation for analyzing the chemical composition of silicon during the production of industrial silicon.

[0007] Although the above-mentioned devices can sample liquids, they cannot achieve convenient demoulding and clean sampling operations. Content of the Utility Model

[0008] The purpose of the utility model is to provide a cleaning sampling device for liquid silicon in front of the furnace with reasonable structural design, novel concept, convenient operation, heat resistance, wear resistance, oxidation resistance, corrosion resistance, simple processing and production, cost saving, convenient demoulding, high demoulding efficiency, capable of realizing clean sampling, and capable of collecting liquid silicon.

[0009] The utility model relates to a device for cleaning and sampling liquid silicon in front of a furnace, which comprises a handle. One end of the handle is fixedly installed with a sampling part. A sample holding groove is formed on the surface of the sampling part, and a filling cavity is formed at the bottom of the sample holding groove.

[0010] A filling layer is arranged in the filling cavity.

[0011] A cylinder body is sleeved on the outer wall of the sampling part, and a baffle is fixedly connected to one side surface of the cylinder body.

[0012] A cylinder body is sleeved on the outer wall of the sampling part. After the sampling device is used up, the sampling part can be received into the cylinder body, which can avoid scalding the operator and prevent being contaminated on site, resulting in deviation of the components of the taken liquid sample.

[0013] The sample holding groove is of an inverted trapezoidal structure.

[0014] The sample holding groove being of an inverted trapezoidal structure is convenient for the demoulding operation after the liquid sample solidifies later.

[0015] A hoop is sleeved on the outer wall surface of the sampling part.

[0016] The hoop is located at the joint of the sampling part and the handle.

[0017] The arranged hoop is welded to the handle, and the sampling part made of a carbon rod is inlaid into the hoop. Therefore, the hoop can play a role in fixing and connecting the sampling part, enabling the sampling part to be better connected with the handle, being convenient and safe to use, reducing the workload of the staff, and greatly improving the sampling efficiency and quality.

[0018] The filling layer is graphite powder.

[0019] A filling cavity is formed at the bottom of the sample holding groove, a filling layer is arranged in the filling cavity, and the filling layer is graphite powder. Before sampling, the filling cavity at the bottom of the sample holding groove can be cleaned, graphite powder is filled in the filling cavity, and then sampling is carried out. After the sample solidifies, demoulding is more beneficial, and situations such as sticking will not occur.

[0020] The sampling part is a carbon rod.

[0021] Setting the sampling part as a carbon rod has the advantages of strong heat resistance, wear resistance, oxidation resistance, corrosion resistance, etc., and the taken silicon sample does not stick to the sample holding groove, being convenient to use; the silicon sample taken by using this sampling device is consistent with the silicon water smelted in the submerged arc furnace, and can meet the requirement that the prepared silicon sample is true and reliable; the arranged sample holding groove can sample the liquid silicon in front of the silicon furnace, and when in use, the liquid silicon is placed in the sample holding groove, and the operation is convenient.

[0022] The beneficial effects of the utility model are as follows:

[0023] 1) A cylinder is sleeved on the outer wall of the sampling part. After the sampling device is used, the sampling part can be received into the cylinder, which can avoid scalding the operator and prevent contamination on site, thus avoiding deviation in the composition of the liquid sample taken.

[0024] 2) A filling cavity is formed at the bottom of the sample holding groove, and a filling layer is arranged in the filling cavity. The filling layer is graphite powder. Before sampling, the filling cavity at the bottom of the sample holding groove can be cleaned, and then graphite powder is filled into the filling cavity, and then sampling is carried out. After the sample solidifies, demolding is more convenient and no bonding or other situations will occur.

[0025] 3) The sampling part is set as a carbon rod, which has the advantages of strong heat resistance, wear resistance, oxidation resistance, corrosion resistance, etc. Moreover, the silicon sample taken does not stick to the sample holding groove, which is convenient to use; the silicon sample taken by using this sampling device is consistent with the composition of the molten silicon smelted in the submerged arc furnace, and can meet the requirements that the prepared silicon sample is true and reliable; the set sample holding groove can sample the molten silicon in front of the silicon furnace. When in use, the molten silicon is placed in the sample holding groove, and the operation is convenient.

[0026] 4) The set ferrule is welded to the handle, and the sampling part made of carbon rod is inlaid into the ferrule. Therefore, the ferrule can play a role in fixing and connecting the sampling part, making the sampling part and the handle better connected together, which is convenient and safe to use, reduces the workload of the staff, and greatly improves the sampling efficiency and quality.

[0027] 5) The structure is reasonably designed, novel in conception, convenient to operate, heat-resistant, wear-resistant, oxidation-resistant, corrosion-resistant, simple to process and manufacture, cost-saving, and can collect molten silicon. It has been put into use and has a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural view of the present utility model;

[0029] Figure 2 is a schematic structural view of the cylinder in the present utility model;

[0030] Figure 3 is a left view of the cylinder in the present utility model;

[0031] Figure 4 is an enlarged schematic structural view of the sample holding groove in the present utility model;

[0032] Figure 5 is a side view of the sample holding groove in the present utility model.

[0033] In the figure: handle 1, ferrule 2, sample holding groove 3, sampling part 4, filling cavity 5, cylinder 6, baffle 601, filling layer 7. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] Embodiment 1.

[0035] The utility model includes a handle 1, a sample holding groove 3, a sampling part 4, a filling cavity 5, a cylinder 6, a baffle 601, and a filling layer 7. It includes the handle 1. One end of the handle 1 is fixedly installed with the sampling part 4. The surface of the sampling part 4 is provided with the sample holding groove 3, and the bottom of the sample holding groove 3 is provided with the filling cavity 5.

[0036] The filling layer 7 is arranged in the filling cavity 5.

[0037] The outer wall of the sampling part 4 is sleeved with the cylinder 6, and one side surface of the cylinder 6 is fixedly connected with the baffle 601.

[0038] The sample holding groove 3 is of an inverted trapezoidal structure.

[0039] The filling layer 7 is graphite powder.

[0040] The sampling part 4 is a carbon rod.

[0041] The sampling part 4 is made of a carbon rod, which has the functions of strong heat resistance, wear resistance, oxidation resistance, and corrosion resistance. The carbon rod can be the remaining end after the front of the submerged arc furnace is burned for eyeing, so that it can be fully utilized to a great extent, reducing the enterprise's expenditure, making use of waste, and saving environmental protection.

[0042] The side of the sampling part 4 is provided with the sample holding groove 3.

[0043] The sampling part 4 is a carbon rod with a diameter of 105 mm and a length of 200 mm.

[0044] The sample holding groove 3 has dimensions of: length 140 mm * width 80 mm * height 80 mm.

[0045] The diameter of the cylinder 6 is 300 mm.

[0046] The handle is made of an oxygen blowing pipe with a length of 12000 mm and a diameter of 20 mm, which can ensure that the hand is not burned by the splashed silicon flowers during sampling. The oxygen blowing pipe is made of small-caliber steel, which has the advantages of light weight, high temperature resistance, and fast heat dissipation.

[0047] During use: Before sampling, the filling cavity 5 at the bottom of the sample holding tank 3 can be cleaned, and graphite powder can be filled in the filling cavity 5. An operator can hold the handle 1 and insert the sampling part 4 into the position where the liquid silicon drops at the end of the front tapping chute of the industrial silicon furnace through the handle for sampling. The obtained liquid silicon is placed in the sample holding tank 3. After taking the liquid silicon sample, the operator moves the sampling device to a designated position. After cooling, the solidified sample in the sample holding tank 3 is demolded. The demolding is convenient and there will be no adhesion. The demolded sample is sent for inspection and testing. Sampling is convenient, safe, and clean. After sampling is completed, the sampling part 4 is stored in the cylinder 6, which can avoid scalding the operator and prevent contamination at the site, resulting in deviation of the composition of the taken liquid sample.

[0048] Embodiment 2.

[0049] The utility model includes a handle 1, a ferrule 2, a sample holding tank 3, and a sampling part 4. One end of the handle 1 is fixedly installed with the sampling part 4. A sample holding tank 3 is arranged on the surface of the sampling part 4, and a filling cavity 5 is arranged at the bottom of the sample holding tank 3.

[0050] A filling layer 7 is arranged in the filling cavity 5.

[0051] A cylinder 6 is sleeved on the outer wall of the sampling part 4, and a baffle 601 is fixedly connected to one side surface of the cylinder 6.

[0052] The sample holding tank 3 is of an inverted trapezoidal structure.

[0053] The filling layer 7 is graphite powder.

[0054] The sampling part 4 is a carbon rod.

[0055] The sampling part 4 is made of a carbon rod and has the functions of strong heat resistance, wear resistance, oxidation resistance, and corrosion resistance. The carbon rod can be the remaining end after the front eye burning of the submerged arc furnace, so that it can be fully utilized to a great extent, reduce the enterprise expenditure, make use of waste, and save environmental protection.

[0056] A ferrule 2 is sleeved on the outer wall surface of the sampling part 4.

[0057] The ferrule 2 is located at the joint of the sampling part 4 and the handle 1.

[0058] The sampling part 4 is a carbon rod with a diameter of 105 mm and a length of 200 mm.

[0059] The sample holding tank 3 has dimensions of: length 140 mm * width 80 mm * height 80 mm.

[0060] The cylinder 6 has a diameter of 300 mm.

[0061] The handle is made of an oxygen lance with a length of 12,000 mm and a diameter of 20 mm, which can ensure that it is not burned by the splashed silicon flowers during sampling. The oxygen lance is made of small-caliber steel, with the advantages of light weight, high temperature resistance, and fast heat dissipation.

[0062] When the set ferrule 2 is welded completely, the sampling part 4 made of carbon rod can be better connected with the handle 1, which is convenient and safe to use, reduces the workload of the staff, and greatly improves the sampling efficiency and quality.

[0063] During use: Before sampling, the filling cavity 5 at the bottom of the sample holding tank 3 can be cleaned, and graphite powder can be filled in the filling cavity 5. The operator can hold the handle 1 and insert the sampling part 4 into the falling position of the liquid silicon at the end of the out-of-furnace chute in front of the industrial silicon furnace through the handle for sampling. The obtained liquid silicon is placed in the sample holding tank 3. After taking the liquid silicon sample, the operator moves the sampling device to the designated position. After cooling, the solidified sample in the sample holding tank 3 is demolded. The demolding is convenient and there will be no adhesion. The demolded sample is sent for inspection and analysis. The sampling is convenient, safe, and clean. After sampling is completed, the sampling part 4 is stored in the cylinder 6, which can avoid scalding the operator and prevent it from being contaminated on site, resulting in deviation of the composition of the taken liquid sample; the set ferrule 2 is welded to the handle 1. The ferrule 2 is made of a thin-walled steel pipe with a diameter of 110 mm, and the sampling part 4 made of carbon rod is inserted into the ferrule 2. Therefore, the ferrule 2 can play a role in fixing and connecting the sampling part 4.

Claims

1. A liquid silicon cleaning sampling device before furnace, characterized in that: The invention comprises a handle (1), wherein a sampling portion (4) is fixedly mounted on one end of the handle (1), a sample holding groove (3) is provided on the surface of the sampling portion (4), a filling cavity (5) is provided at the bottom of the sample holding groove (3), a filling layer (7) is provided in the filling cavity (5), the sample holding groove (3) is an inverted trapezoidal structure, and the filling layer (7) is graphite powder.

2. A liquid silicon cleaning sampling device in front of a furnace as claimed in claim 1, characterized in that: The outer wall of the sampling portion (4) is sleeved with a cylinder (6), and a baffle (601) is fixedly connected to a surface of one side of the cylinder (6).

3. A liquid silicon cleaning sampling device in front of a furnace as claimed in claim 2, characterized in that: The outer wall surface of the sampling portion (4) is provided with a hoop sleeve (2).

4. A liquid silicon cleaning sampling device in front of a furnace as claimed in claim 3, characterized in that: The cuff (2) is located at the junction of the sampling portion (4) and the handle (1).

5. A liquid silicon cleaning sampling device in front of a furnace as claimed in claim 4, characterized in that: The sampling portion (4) is a carbon rod.

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