Steel billet cutting line with slag blowing device

Abstract

The utility model discloses a steel billet cutting line with a slag blowing device, which comprises a rack, the flame cutting machine is fixedly arranged on the machine frame; the carrier rollers are arranged below the rack, the carrier rollers are arranged in multiple groups, and each carrier roller is provided with a plurality of grooves used for conveying steel billets; and the slag blowing device is arranged behind the groove in the first carrier roller after the steel billet is cut by the flame cutting machine, and is used for blowing cut surface slag away. The utility model aims to utilize the principle that the cooling shrinkage rates of steel billets and iron oxide chips are different, after a flame cutting machine cuts off the steel billets, the temperature of the end surface is high and compressed air purges the steel billets, a rapid temperature reduction process is generated, the cooling shrinkage rates of the steel billets and the iron oxide chips are different, and the iron oxide chips and the steel billets fall off due to gaps generated between the iron oxide chips and the steel billets. And the problem of scrap iron residue is basically avoided after subsequent steel wire brush cleaning.

Description

Technical Field

[0001] The utility model relates to the technical field of steel casting, in particular to a billet cutting line with a slag blowing device. Background Art

[0002] Continuous casting square billets often have slag hanging on the cut surface. Therefore, after the square billets are cooled, a robotic arm is used to drive a wire brush to clean the cut surface at the end of the flame cutting machine. After the cleaning is completed, a billet number spraying machine sprays the billet number on the cut surface. Since the cutting of iron oxide chips and the cooling of the square billets occur simultaneously, the iron oxide chips are easily adhered tightly to the cut surface, resulting in the problem that some of them cannot be brushed off. Therefore, the billet number is easily sprayed on the iron oxide chips. In the subsequent process, the square billets enter the turning cooling bed. During the continuous turning process of the cast billets, the iron oxide chips on the end surface will fall off during vibration, resulting in the sprayed characters often falling off at the same time. Therefore, the billet number must be re-supplemented subsequently, which greatly increases the workload of employees, is prone to errors in furnace number spraying and patching, affects quality traceability, and does not meet the requirements of process standardization, increasing quality risks. Content of the Utility Model

[0003] The purpose of the utility model is to provide a billet cutting line with a slag blowing device. After the flame cutting machine cuts the square billets, when the temperature of the square billets is relatively high, compressed air is sprayed onto the cut surface. Using the principle of different cooling shrinkage rates of the billet and the iron oxide chips, after the flame cutting machine cuts the billet, the temperature of the end surface is high. After compressed air is blown, there will be a rapid temperature drop process. Since the cooling shrinkage ratios of the billet and the iron oxide chips are different, gaps will be generated between the iron oxide chips and the billet, causing the iron oxide chips to fall off. After subsequent cleaning with a wire brush, there is basically no problem of residual iron oxide chips.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a billet cutting line with a slag blowing device, including,

[0005] A frame;

[0006] A flame cutting machine, which is fixedly arranged on the frame;

[0007] Carrying rollers, which are arranged below the frame. There are multiple groups of carrying rollers, and each carrying roller is provided with a plurality of grooves for conveying billets;

[0008] A slag blowing device, which is arranged behind the groove of the first carrying roller after the billet passes through the flame cutting machine for blowing off the slag on the cut surface.

[0009] Further, the slag blowing device includes a main air pipe, which is fixedly connected to the frame above the carrying roller. The main air pipe is communicated with a vertical air blowing pipe and a horizontal air blowing pipe.

[0010] Further, there are two vertical blowing pipes, and the air outlet ends thereof are arranged vertically downward and are respectively aligned with the 1 / 4 and 3 / 4 positions of the width of the groove.

[0011] Further, the horizontal blowing pipe includes a left horizontal blowing pipe and a right horizontal blowing pipe which are arranged alternately, and the center line of the horizontal blowing pipe is located at the 1 / 2 position of the height of the steel billet to be slagged.

[0012] Further, the air blowing ports of the vertical blowing pipe and the horizontal blowing pipe are both arranged in a fan-shaped flat shape.

[0013] Further, one end of the main air pipe is closed, and the other end is connected to the air source through a pipeline, and an electromagnetic valve is installed on the pipeline. <>

[0014] The beneficial effects of the present utility model are as follows:

[0015] By arranging a slag blowing device on the frame installed on the flame cutting machine, when the cast billet walks after being cut by the flame cutting machine, behind the groove on the first idler roller behind the flame cutting machine, under the blowing of the compressed air of the slag blowing device on the cut surface, using the principle that the cooling shrinkage rates of the steel billet and the iron oxide chips are different, after the flame cutting machine cuts the steel billet, the end face temperature is high, and after being purged by the compressed air, there will be a rapid temperature drop process. The cooling shrinkage ratios of the steel billet and the iron oxide billet are different, and gaps will be generated between the iron oxide chips and the steel billet and fall off. At the same time, the un-dropped iron oxide chips are also easier to fall off after the steel billet passes through the subsequent wire brush cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic side view of the structure of the present utility model.

[0017] Figure 2 It is a schematic front view of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present utility model will be further clarified below with reference to the drawings and specific embodiments. Embodiment

[0019] Combined with Figures 1 - 2 It can be seen that a steel billet cutting line with a slag blowing device includes

[0020] A frame 10;

[0021] A flame cutting machine 20, and the flame cutting machine 20 is fixedly arranged on the frame 10;

[0022] Idler rollers 30, the idler rollers 30 are arranged below the frame 10, there are multiple groups of the idler rollers 30, and each idler roller 30 is provided with a plurality of grooves 301 for conveying the steel billet; <)

[0023] The slag blowing device 40 is arranged behind the groove 301 on the first roller 30 after the billet is cut by the flame cutting machine 20, and is used to blow away the slag on the cut surface.

[0024] Specifically, the existing flame cutting machine 20 is usually fixedly connected to the frame 10. A plurality of rollers 30 are arranged below the frame 10. The rollers 30 are provided with grooves 301 for guiding and feeding the billet. The slag blowing device 40 is fixedly connected to the frame 10 and is arranged at the rear side of the groove 301 on the first roller 30 after the flame cutting machine 10 finishes cutting. Such an arrangement is far from the fire source of the flame cutting machine 10, and at the same time, the falling iron oxide chips will not fall on the groove 301 to damage the subsequent billet. At the same time, the billet and the iron oxide chips here still have a relatively high temperature, which is easier to achieve the difference in the cooling shrinkage rate between the billet and the iron oxide chips, so as to cause them to fall off.

[0025] A further solution is that, in order to ensure that the slag blowing device is easier to manufacture, the slag blowing device 40 includes a main air pipe 401. The main air pipe 401 is fixedly connected to the frame 10 above the roller 30. The main air pipe 401 is communicated with a vertical air pipe 402 and a horizontal air pipe 403.

[0026] A further solution is that, in order to ensure that there is a large wind force in the vertical direction to quickly cool, two vertical air pipes 402 are provided and their air outlet ends are arranged vertically downward, and are respectively aligned with the 1 / 4 and 3 / 4 of the width of the groove 301.

[0027] A further solution is that, in order to more easily blow off the iron oxide chips, the horizontal air pipe 403 includes a left horizontal air pipe 4031 and a right horizontal air pipe 4032 which are arranged alternately. The center line of the horizontal air pipe 403 is located at the 1 / 2 of the height of the billet to be slag blown. Such an arrangement is easier to blow to the entire cut surface, and at the same time, the left and right are staggered, which can more easily blow off the iron oxide chips.

[0028] A further solution is that, in order to ensure that the entire cut surface can be slag blown, the air blowing ports of the vertical air pipe 402 and the horizontal air pipe 403 are both arranged in a fan-shaped flat shape.

[0029] A further solution is that, in order to facilitate the control of the working time of the slag blowing device 40, one end of the main air pipe 401 is closed, and the other end is communicated with the air source through a pipeline, and a solenoid valve 4011 is installed on the pipeline.

[0030] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the scope of patent protection of the present utility model.

Claims

1. A billet cutting line with a slag blowing device, characterized in that: including, a frame (10); a flame cutting machine (20), which is fixedly arranged on the frame (10); idler rollers (30), which are arranged below the frame (10), and multiple groups of the idler rollers (30) are provided. Multiple grooves (301) for conveying billets are arranged on each idler roller (30); a slag blowing device (40), which is arranged behind the groove (301) of the first idler roller (30) after the billet passes through the flame cutting machine (20) for blowing off the slag on the cutting surface.

2. The billet cutting line with a slag blowing device according to claim 1, wherein: The slag blowing device (40) includes a main air pipe (401), which is fixedly connected to the frame (10) above the idler roller (30). A vertical air pipe (402) and a horizontal air pipe (403) are communicatedly arranged on the main air pipe (401).

3. A billet cutting line with a slag blowing device according to claim 2, characterized in that: Two vertical air pipes (402) are provided, and their air outlet ends are arranged vertically downward, and are respectively aligned with the 1 / 4 and 3 / 4 of the width of the groove (301).

4. A billet cutting line with a slag blowing device according to claim 2, characterized in that: The horizontal air pipe (403) includes a left horizontal air pipe (4031) and a right horizontal air pipe (4032) which are arranged alternately. The center line of the horizontal air pipe (403) is located at the 1 / 2 of the height of the billet to be slag blown.

5. A billet cutting line with a slag blowing device according to any one of claims 2 to 4, characterized in that: The air blowing ports of the vertical air pipe (402) and the horizontal air pipe (403) are both arranged in a fan-shaped flat shape.

6. A billet cutting line with a slag blowing device according to claim 2, characterized in that: One end of the main air pipe (401) is closed, and the other end is communicated with an air source through a pipeline, and a solenoid valve (4011) is installed on the pipeline.

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