Melt sampling device for submerged arc furnace

Abstract

The utility model discloses a submerged arc furnace melt sampling device which comprises a chute, a cylinder is horizontally installed on the side wall of one side of the chute, a telescopic cylinder is coaxially connected in an inner cavity of the cylinder in a sliding mode, a driving assembly is connected between the cylinder and the telescopic cylinder, a sample inlet is formed in the top wall of the outer end of the telescopic cylinder, and the telescopic cylinder is coaxially connected with the driving assembly in a sliding mode. A sample discharging opening is formed in the bottom wall of the inner end of the telescopic cylinder, a through opening matched with the sample discharging opening is formed in the bottom wall of the cylinder, and a flow guide pipe is communicated with the through opening; the automatic sampling device has the beneficial effects that the telescopic cylinder automatically extends into the inner cavity of the chute, so that a small amount of molten liquid of the submerged arc furnace can be drained out and is used as a sample for detection, the automatic sampling of the molten liquid is realized, the labor intensity is reduced, and meanwhile, safety accidents caused by manual sampling are also avoided.

Description

Technical field:

[0001] The utility model belongs to the field of smelting production, in particular to a molten liquid sampling device for an electric arc furnace. Background technology:

[0002] Submerged arc furnaces, also known as electric arc furnaces or resistance furnaces, are crucial equipment in the smelting industry. They are primarily used to reduce smelting ores, carbonaceous reducing agents, and solvents. They primarily produce ferroalloys such as ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, and silicon-manganese alloys, which are important industrial raw materials in the metallurgical industry and chemical raw materials such as calcium carbide.

[0003] After the molten metal is produced by an electric arc furnace, it needs to be sampled and tested. The main purpose is to ensure product quality and optimize the production process. During actual production sampling, on-site operators need to use a handheld sampling rod to reach into the chute to scoop out a small amount of the molten metal being transported. The sample molten liquid is then poured into a specific container to cool and set. Although this method is simple and fast, the metal sampling rod is heavy, which increases the labor intensity of the operators. At the same time, when scooping out the molten metal, the operators are prone to dripping the high-temperature molten metal onto the ground, causing burns and leading to safety accidents. Summary of the invention:

[0004] The purpose of the utility model is to provide a molten metal sampling device for an electric arc furnace, and to overcome the deficiencies of the above-mentioned prior art, which effectively solves the existing problems of high labor intensity and great safety hazards in manual sampling.

[0005] The content of the utility model: A molten liquid sampling device for an electric arc furnace comprises a chute, a cylinder is horizontally mounted on one side wall of the chute, a telescopic cylinder is coaxially slidably connected in the inner cavity of the cylinder, a driving assembly is connected between the cylinder and the telescopic cylinder, a sampling port is provided on the top wall of the outer end of the telescopic cylinder, a sampling port is provided on the bottom wall of the inner end of the telescopic cylinder, a through port matching the sampling port is provided on the bottom wall of the cylinder, and a flow guide pipe is connected to the through port.

[0006] Furthermore, the driving assembly includes a pull rod, which has a circular hole coaxially opened on the outer end section of the cylinder. The pull rod slides in the circular hole. The inner end of the pull rod is coaxially fixedly connected to the inner end section of the telescopic cylinder. The outer end of the pull rod is fixedly connected to one end of the connecting plate. A cylinder is installed on the outer wall of the cylinder along the length direction, and the piston rod of the cylinder is fixedly connected to the other end of the connecting plate.

[0007] Furthermore, the inclination of the cross section of the outer end of the telescopic cylinder is the same as the inclination of the side wall of the chute.

[0008] Furthermore, the diameter of the flow guide pipe gradually decreases from top to bottom.

[0009] The beneficial effects of the utility model are as follows: by automatically extending the telescopic cylinder into the inner cavity of the chute, a small amount of molten liquid from the ore-arcing furnace can be drained out and used as a sample for detection, thereby realizing automatic sampling of the molten liquid, reducing labor intensity, and avoiding safety accidents caused by manual sampling. Description of the drawings:

[0010] Figure 1 This is a cross-sectional view of the overall structure of the utility model;

[0011] In the figure, 1 is the chute, 2 is the cylinder, 3 is the telescopic cylinder, 4 is the sample inlet, 5 is the sample discharge port, 6 is the through port, 7 is the guide tube, 8 is the pull rod, 9 is the connecting plate, and 10 is the cylinder. Specific implementation method:

[0012] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described with reference to the accompanying drawings:

[0013] like Figure 1 As shown, a molten liquid sampling device for an ore-arc furnace comprises a chute 1, a cylinder 2 is horizontally mounted on one side wall of the chute 1, a telescopic cylinder 3 is coaxially slidably connected in the inner cavity of the cylinder 2, a driving assembly is connected between the cylinder 2 and the telescopic cylinder 3, a sampling port 4 is provided on the outer top wall of the telescopic cylinder 3, a sampling port 5 is provided on the inner bottom wall of the telescopic cylinder 3, a through port 6 matching the sampling port 5 is provided on the bottom wall of the cylinder 2, a flow guide pipe 7 is connected to the through port 6, and the driving assembly includes a pull-out port 4. Rod 8, a circular hole is coaxially opened on the outer end section of the cylinder 2, the pull rod 8 slides in the circular hole, the inner end of the pull rod 8 is coaxially fixedly connected to the inner end section of the telescopic cylinder 3, the outer end of the pull rod 8 is fixedly connected to one end of the connecting plate 9, a cylinder 10 is installed on the outer wall of the cylinder 2 along the length direction, the piston rod of the cylinder 10 is fixedly connected to the other end of the connecting plate 9, the inclination of the outer end section of the telescopic cylinder 3 is the same as the inclination of the side wall of the chute 1, and the diameter of the guide pipe 7 gradually decreases from top to bottom.

[0014] Specifically, by extending the telescopic cylinder 3 into the inner cavity of the chute 1, a small amount of molten metal from the submerged arc furnace can be drained out and used for sample testing.

[0015] In actual use, the molten metal smelted in the furnace flows into the subsequent production system through the chute 1, when sampling, the piston rod of the cylinder 10 retracts, and drives the connecting plate 9 to move, the connecting plate 9 drives the pull rod 8 to extend into the inner cavity of the cylinder 2, at this time, the telescopic cylinder 3 extends out of the cylinder 2 and extends into the inner cavity of the chute 1 under the pushing of the pull rod 8, at this time, the sampling outlet 5 is communicated with the through port 6, a small amount of the molten metal flowing in the chute 1 flows into the inner cavity of the telescopic cylinder 3 from the sampling inlet 4, and then flows into the flow guide pipe 7 through the sampling outlet 5, the sampling molten metal flows into the sampling container which has been placed by the flow guide pipe 7; when the sampling work is completed, the piston rod of the cylinder 10 extends out, the connecting plate 9 drives the pull rod 8 to slide out of the inner cavity of the cylinder 2, at this time, the pull rod 8 drives the telescopic cylinder 3 to retract into the cylinder 2, the inner wall of the cylinder 2 and the outer wall of the telescopic cylinder 3 slide and fit, so that the inner wall of the cylinder 2 can block the sampling inlet 4, thereby preventing the molten metal from flowing into the inner cavity of the telescopic cylinder 3; the inclination of the outer end section of the telescopic cylinder 3 is the same as the inclination of the side wall of the chute 1, so that after the telescopic cylinder 3 extends into the cylinder 2, the outer end of the telescopic cylinder 3 is flush with the side wall of the chute 1, thereby further improving the sealing performance of the pipe opening and reducing the flow resistance of the chute 1.

[0016] The above only is the preferred embodiment of the present application, and does not limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for sampling the melt of an electric arc furnace, comprising a trough (1), characterized in that: A cylinder (2) is horizontally installed on one side wall of the chute (1), an extension cylinder (3) is coaxially and slidingly connected in the inner cavity of the cylinder (2), a driving assembly is connected between the cylinder (2) and the extension cylinder (3), a sample inlet (4) is formed in the outer end top wall of the extension cylinder (3), a sample outlet (5) is formed in the inner end bottom wall of the extension cylinder (3), a through hole (6) matching the sample outlet (5) is formed in the bottom wall of the cylinder (2), and a flow guide pipe (7) is communicated with the through hole (6).

2. A molten bath sampling device according to claim 1, characterised in that: The driving assembly comprises a pull rod (8), a circular hole is coaxially formed in the outer end section of the cylinder (2), the pull rod (8) is slidingly arranged in the circular hole, the inner end of the pull rod (8) is fixedly connected with the inner end section of the extension cylinder (3), the outer end of the pull rod (8) is fixedly connected with one end of a connecting plate (9), an air cylinder (10) is installed on the outer wall of the cylinder (2) along the length direction, and the piston rod of the air cylinder (10) is fixedly connected with the other end of the connecting plate (9).

3. A molten bath sampling device according to claim 1, characterised in that: The extension cylinder (3) has the same inclination as the side wall of the chute (1).

4. A molten bath sampling device according to claim 1, characterised in that: The pipe diameter of the flow guide pipe (7) gradually decreases from top to bottom.

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