A device for shaping a bow of a slab on a roller table

Abstract

A device for shaping bow-shaped billets on roller conveyors, belonging to the technical field of continuous casting equipment, is used for shaping bow-shaped billets on roller conveyors. The technical solution is as follows: a base is placed on one side of the roller conveyor, a support frame is vertically fixed to the base, and the rear parts of a cooling water pipe and a combustion gas pipe are horizontally fixed to the upper part of the support frame, respectively. The cooling water pipe and the combustion gas pipe are perpendicular to the running direction of the roller conveyor. The front ends of the cooling water pipe and the combustion gas pipe are respectively located above and below the bow-shaped billet on the roller conveyor. Cooling water nozzles and gas nozzles are respectively installed at the front ends of the cooling water pipe and the combustion gas nozzles, which are respectively opposite to the upper surface and lower bottom surface of the bow-shaped billet. The rear end of the cooling water pipe is connected to a water supply pipe, and the rear end of the combustion gas pipe is connected to a gas pipe and an oxygen pipe, respectively. This utility model can heat and cool the bow-shaped billet on the roller conveyor, restoring it to a normal state and preventing the bow-shaped billet from remaining on the conveyor roller conveyor and affecting production.

Description

Technical Field

[0001] This utility model relates to a device for shaping the arc-shaped billet of a roller conveyor, belonging to the technical field of continuous casting equipment. Background Technology

[0002] In continuous casting production, the fan-shaped section is an essential piece of equipment. The cooling water within the fan-shaped section cools the billet. Uneven cooling can lead to uneven shrinkage of the billet. After exiting the fan-shaped section, the unevenly shrunk billet may form an arc-shaped billet that remains on the conveyor rollers. If this occurs at the end of a casting cycle, the arc-shaped billet may remain on the conveyor rollers. For continuous casting machines with downward-passing ingots, the arc-shaped billet cannot be drawn onto the conveyor rollers, directly resulting in longer casting intervals and impacting production. Currently, the method for dealing with arc-shaped billets remaining on the conveyor rollers is as follows: the contact area between the billet and the conveyor rollers is cut at an angle using a flame cutter. Then, the rollers are started to transport the billet to a position where it can be lifted by an overhead crane, which then removes it. In cases of severe arcing, the billet is cut into several segments using a flame cutter, the rollers are started, and the smaller segments are sent to a position where the overhead crane can lift them. The current processing method results in excessively long cutting time for the billet on the roller conveyor, which seriously affects production and easily leads to the scrapping of the billet. Therefore, it is urgent to improve the method. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a device for shaping the arc-shaped billet on the roller conveyor. This device can heat and cool the arc-shaped billet on the roller conveyor, so that the arc-shaped billet returns to its normal state, avoids the arc-shaped billet from staying on the conveyor roller conveyor and affecting production, and ensures the normal operation of production.

[0004] The technical solution to the above technical problem is:

[0005] A device for shaping an arc-shaped cast billet on a roller conveyor includes a base, a support frame, a cooling water pipe, a combustion gas pipe, a cooling water nozzle, a gas nozzle, a gas pipe, and an oxygen pipe. The base is placed on one side of the roller conveyor, and the support frame is vertically fixed to the upper surface of the base. The rear parts of the cooling water pipe and the combustion gas pipe are horizontally fixed to the upper part of the support frame, respectively. The cooling water pipe and the combustion gas pipe are parallel and in the same vertical plane. The pipe bodies of the cooling water pipe and the combustion gas pipe are perpendicular to the running direction of the roller conveyor. The front ends of the cooling water pipe and the combustion gas pipe are... Located above and below the arched billet on the roller conveyor, the cooling water pipe and the combustion gas pipe are respectively equipped with cooling water nozzles and gas nozzles at their front ends. The cooling water nozzles and gas nozzles are located above and below the arched billet on the roller conveyor, respectively, and are opposite to the upper surface and lower bottom surface of the arched billet on the roller conveyor. The rear end of the cooling water pipe is connected to the water supply pipe, and the rear end of the combustion gas pipe is connected to the gas pipe and the oxygen pipe, respectively. The gas pipe and the oxygen pipe are respectively connected to the gas supply pipe and the oxygen supply pipe.

[0006] The aforementioned device for shaping the arc-shaped billet on the roller conveyor has a rectangular base with traveling rollers mounted on its lower surface. The support frame is an upright column with its lower end fixed in the middle of the base's width. The cooling water pipe and the combustion gas pipe are located in the middle of the two conveying rollers of the roller conveyor.

[0007] The aforementioned device for shaping the arc-shaped billet on the roller conveyor has a water spray pipe below the front end of the cooling water pipe. The water spray pipe is placed horizontally and is perpendicular to the running direction of the roller conveyor. The front end of the cooling water pipe is connected to the middle of the water spray pipe through a vertical connecting pipe. Multiple cooling water nozzles are evenly distributed along the length of the bottom surface of the water spray pipe. A cooling water valve is installed at the connection between the rear end of the cooling water pipe and the water supply pipe.

[0008] The aforementioned device for shaping the arc-shaped billet of the roller conveyor has a jet pipe above the front end of the combustion gas pipe. The jet pipe is placed horizontally and is perpendicular to the running direction of the roller conveyor. The front end of the combustion gas pipe is connected to the middle of the jet pipe through a vertical connecting pipe. Multiple gas nozzles are evenly distributed along the length of the upper surface of the jet pipe. Gas valves and oxygen valves are respectively installed on the gas pipe and oxygen pipe connected to the rear end of the combustion gas pipe.

[0009] The beneficial effects of this utility model are:

[0010] The cooling water pipe and combustion gas pipe of this invention can respectively transport cooling water and combustion gas to shape the arc-shaped billet; the cooling branch pipe and the jet pipe are located above and below the arc-shaped billet on the roller conveyor, respectively, and the gas nozzle and cooling water nozzle can respectively heat and cool the upper surface and lower bottom of the arc-shaped billet to achieve the effect of shaping the arc-shaped billet; the combustion gas pipe is connected to the gas pipe and the oxygen pipe, respectively, and the gas and oxygen can be mixed in the combustion gas pipe and then burned through the gas nozzle of the jet pipe; the gas pipe and the oxygen pipe are respectively equipped with gas valve and oxygen valve to regulate the flow rate of gas and oxygen input; the cooling water valve installed at the rear end of the cooling water pipe can control the flow rate of cooling water.

[0011] This invention features a simple structure and is easy to operate. It can heat and cool the arc-shaped billet on the roller conveyor, restoring it to its normal state and preventing it from remaining on the conveyor rollers and affecting production, thus ensuring normal production operations. It also boasts advantages such as low initial investment, convenient maintenance, no modification to existing equipment, and small footprint, making it worthy of widespread adoption in the industry. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the usage state of this utility model.

[0014] The following are marked in the diagram: base 1, support frame 2, cooling water pipe 3, combustion gas pipe 4, cooling water nozzle 5, gas nozzle 6, gas pipe 7, oxygen pipe 8, traveling roller 9, water spray pipe 10, cooling water valve 11, jet pipe 12, gas valve 13, oxygen valve 14, conveying roller 15, bow-shaped billet 16. Detailed Implementation

[0015] This utility model consists of a base 1, a support frame 2, a cooling water pipe 3, a combustion gas pipe 4, a cooling water nozzle 5, a gas nozzle 6, a water spray pipe 10, a cooling water valve 11, a jet pipe 12, a cooling water valve 13, a gas valve 14, and an oxygen valve 14.

[0016] Figure 1 , 2 The base 1 is a rectangular plate with a traveling roller 9 installed on its bottom surface. The base 1 is placed on one side of the roller conveyor and can move along the running direction of the roller conveyor to shape the arc-shaped billet 16 on the roller conveyor.

[0017] Figure 1 , 2As shown, the support frame 2 is an upright column, which is vertically fixed to the upper surface of the base 1. The lower end of the support frame 2 is fixed in the middle of the width of the base 1 to keep the support frame 2 stable and prevent it from tilting back and forth.

[0018] Figure 1 , 2 The cooling water pipe 3 and the combustion gas pipe 4 are both long pipes, placed horizontally, with their rear portions fixed to the upper part of the support frame 2. The cooling water pipe 3 and the combustion gas pipe 4 are parallel and in the same vertical plane, with their bodies perpendicular to the running direction of the roller conveyor. Their front ends are located above and below the arc-shaped billet 16 of the roller conveyor, respectively. The cooling water pipe 3 and the combustion gas pipe 4 can respectively transport cooling water and combustion gas to shape the arc-shaped billet 16.

[0019] Figure 1 The display shows that the cooling water pipe 3 and the combustion gas pipe 4 installed on the support frame 2 are located between the two conveying rollers 15 of the roller conveyor. When the base 1 and the support frame 2 move along the running direction of the roller conveyor, the conveying rollers 15 of the roller conveyor will not affect the baking heating and water spraying cooling of the arc-shaped billet 16 by the cooling water pipe 3 and the combustion gas pipe 4.

[0020] Figure 1 The display shows that there is a water spray pipe 10 below the front of the cooling water pipe 3. The water spray pipe 10 is placed horizontally and is perpendicular to the running direction of the roller conveyor. Multiple cooling water nozzles 5 are evenly distributed along the length of the bottom surface of the water spray pipe 10. The cooling water nozzles 5 are opposite to the top of the arc-shaped billet 16 on the roller conveyor and are used to spray water to cool the arc-shaped billet 16.

[0021] Figure 1 The display shows that the rear end of the cooling water pipe 3 is connected to the water supply pipe, and a cooling water valve 11 is installed at the connection between the rear end of the cooling water pipe 3 and the water supply pipe. The cooling water valve 11 can control the flow rate of cooling water in the cooling water pipe 3.

[0022] Figure 1 The display shows that there is a jet pipe 12 above the front of the combustion gas pipe 4. The jet pipe 12 is placed horizontally and is perpendicular to the running direction of the roller conveyor. Multiple gas nozzles 6 are evenly distributed on the upper surface of the jet pipe 12 along the length direction. The gas nozzles 6 are opposite to the lower surface of the arc-shaped casting billet 16 on the roller conveyor and are used to burn and bake the arc-shaped casting billet 16.

[0023] Figure 1The display shows that the rear end of the combustion pipe 4 is connected to the gas pipe 7 and the oxygen pipe 8, respectively. The gas pipe 7 and the oxygen pipe 8 are connected to the gas delivery pipeline and the oxygen delivery pipeline, respectively. Gas valve 13 and oxygen valve 14 are installed on the gas pipe 7 and oxygen pipe 8 connected to the rear end of the combustion pipe 4, respectively. Gas valve 13 and oxygen valve 14 can regulate the flow rate of gas and oxygen input, so that the input gas and oxygen flow rates reach the optimal ratio, improving the combustion and baking effect on the bow-shaped casting 16.

[0024] Figure 1 As shown, there are reinforcing ribs at the connections between the support frame 2 and the cooling water pipe 3 and the combustion gas pipe 4, respectively, to strengthen the connection between the support frame 2 and the cooling water pipe 3 and the combustion gas pipe 4. Similarly, there are also reinforcing ribs between the cooling water pipe 3 and the water spray pipe 10, and between the combustion gas pipe 4 and the jet pipe 12, to increase their connection strength.

[0025] Figure 2 The working process of this utility model is shown as follows:

[0026] Push the base 1 between the two conveying rollers 15 on the side of the arc-shaped billet 16, so that the combustion gas pipe 4 and the jet pipe 12 are located below the arc-shaped billet 16 on the roller table, ensuring that the jet direction of the gas nozzle 6 on the jet pipe 12 is opposite to the lower surface of the arc-shaped billet 16 on the roller table, and at the same time, place the cooling water pipe 3 and the water spray pipe 10 above the arc-shaped billet 16 on the roller table, ensuring that the water spray direction of the cooling water nozzle 5 on the water spray pipe 10 is opposite to the upper surface of the arc-shaped billet 16 on the roller table.

[0027] Place the electronic lighter above the nozzle 6 of the gas nozzle 12 below the bow-shaped billet 16, open the gas valve 13, press the button of the electronic lighter, ignite the gas sprayed from the nozzle 6 of the electronic lighter, then open the oxygen valve 14, adjust the size of the flame, and start baking the lower surface of the bow-shaped billet 16. After the temperature of the lower surface of the bow-shaped billet 16 rises, close the oxygen valve 14 and at the same time reduce the gas valve 13.

[0028] When the gas valve 13 is reduced, the cooling water valve 11 of the cooling water pipe 3 is opened. The cooling water is sprayed onto the upper surface of the bow-shaped billet 16 through the cooling water nozzle 5 of the spray pipe 10. While cooling the bow-shaped billet 16, the bending state of the bow-shaped billet 16 is observed. If the bow shape of the bow-shaped billet 16 is relieved, the bow-shaped billet 16 can be sent away along the roller conveyor 3 through the roller conveyor. Then the bow shape treatment of the billet is completed.

[0029] If the arc-shaped billet 16 still cannot be sent away by the roller conveyor, close the cooling water valve 11 of the cooling water pipe 3, stop the cooling water from the cooling water nozzle 5 to cool the arc-shaped billet 16, open the gas valve 13, open the oxygen valve 14, and bake the lower surface of the arc-shaped billet 16 again.

[0030] After baking for a period of time, close the oxygen valve 14, reduce the gas valve 13, and then open the cooling water valve 11 of the cooling water pipe 3. Use the cooling water nozzle 5 to spray water to cool the upper surface of the bow-shaped billet 16 again until the bow shape of the bow-shaped billet 16 can be conveyed away by the conveyor roller, thus completing the shaping process of the bow-shaped billet 16.

[0031] An embodiment of this utility model is as follows:

[0032] The base 1 is 1800mm long, 900mm wide, and 120mm thick, and the diameter of the traveling rollers 9 is 160mm;

[0033] The support frame 2 is 1320mm long, 120mm wide, and 125mm thick;

[0034] The diameter of cooling water pipe 3 is 50mm and the length is 1850mm. The model of cooling water valve 11 is Q11F-16PDN50.

[0035] The diameter of the water spray pipe 10 is 24mm and the length is 1210mm. The model of the cooling water nozzle 5 is 3 / 8PZ15695B1.

[0036] The combustion pipe 4 has a diameter of 50mm and a length of 1850mm;

[0037] The diameter of the jet pipe 12 is 20mm and the length is 1210mm. The model of the gas nozzle 6 is MPG-300A-01.

[0038] The model number of gas valve 13 is Q11F-16PDN15, and the model number of oxygen valve 14 is Q11F-16PDN15.

Claims

1. A device for shaping an arc-shaped cast billet on a roller conveyor, characterized in that: It includes a base (1), a support frame (2), a cooling water pipe (3), a combustion gas pipe (4), a cooling water nozzle (5), a gas nozzle (6), a gas pipe (7), and an oxygen pipe (8). The base (1) is placed on one side of the roller conveyor. The support frame (2) is vertically fixed to the upper surface of the base (1). The rear parts of the cooling water pipe (3) and the combustion gas pipe (4) are horizontally fixed to the upper part of the support frame (2). The cooling water pipe (3) and the combustion gas pipe (4) are parallel and in the same vertical plane. The pipe bodies of the cooling water pipe (3) and the combustion gas pipe (4) are perpendicular to the running direction of the roller conveyor. The front ends of the cooling water pipe (3) and the combustion gas pipe (4) are located on the roller conveyor. Above and below the arc-shaped billet (16), cooling water nozzles (5) and gas nozzles (6) are respectively installed at the front ends of cooling water pipe (3) and combustion gas pipe (4). Cooling water nozzles (5) and gas nozzles (6) are located above and below the arc-shaped billet (16) on the roller table. Cooling water nozzles (5) and gas nozzles (6) are respectively opposite to the upper surface and lower bottom surface of the arc-shaped billet (16) on the roller table. The rear end of cooling water pipe (3) is connected to water supply pipe. The rear end of combustion gas pipe (4) is connected to gas pipe (7) and oxygen pipe (8) respectively. Gas pipe (7) and oxygen pipe (8) are respectively connected to gas supply pipe and oxygen supply pipe.

2. The apparatus for shaping the arc-shaped billet of the roller conveyor according to claim 1, characterized in that: The base (1) is a rectangular plate, and the bottom surface of the base (1) is equipped with a traveling roller (9). The support frame (2) is an upright column. The lower end of the support frame (2) is fixed in the middle of the width of the base (1). The cooling water pipe (3) and the combustion gas pipe (4) are located in the middle of the two conveying rollers (15) of the roller conveyor.

3. The apparatus for shaping the arc-shaped billet of the roller conveyor according to claim 1, characterized in that: The cooling water pipe (3) has a spray pipe (10) below its front end. The spray pipe (10) is placed horizontally and is perpendicular to the running direction of the roller conveyor. The front end of the cooling water pipe (3) is connected to the middle of the spray pipe (10) through a vertical connecting pipe. Multiple cooling water nozzles (5) are evenly distributed along the length direction on the bottom surface of the spray pipe (10). A cooling water valve (11) is installed at the connection between the rear end of the cooling water pipe (3) and the water supply pipe.

4. The apparatus for shaping the arc-shaped billet of the roller conveyor according to claim 1, characterized in that: The combustion gas pipe (4) has a jet pipe (12) above its front end. The jet pipe (12) is placed horizontally and is perpendicular to the running direction of the roller conveyor. The front end of the combustion gas pipe (4) is connected to the middle of the jet pipe (12) through a vertical connecting pipe. Multiple gas nozzles (6) are evenly distributed along the length direction on the upper surface of the jet pipe (12). Gas valves (13) and oxygen valves (14) are installed on the gas pipe (7) and oxygen pipe (8) connected to the rear end of the combustion gas pipe (4).

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