Novel diversion trench structure for molten steel pouring

Abstract

The utility model relates to the technical field of casting, in particular to a novel flow guide groove structure for molten steel pouring, which comprises a flow guide cup, a flow guide tube is fixed at the bottom end of the flow guide cup, the flow guide cup is communicated with the flow guide tube, a heating tube is sleeved outside the flow guide tube, the flow guide tube is of a hollow structure, and the heating tube is communicated with the flow guide cup. A heat preservation layer is arranged outside the drainage pipe in a sleeving mode, a filtering device is arranged at the tail end of the drainage pipe, a flow guide rod is connected to the tail end of the drainage pipe, contact between outside air and molten metal can be reduced through a closed structure, and then oxidation of the molten metal can be reduced; and meanwhile, the heating pipe is arranged in the flow guide pipe and can heat and reheat the molten metal flowing through the flow guide groove, and the phenomenon that the strip forming rate is reduced due to temperature loss of the molten metal is prevented.

Description

Technical Field

[0001] This utility model relates to the field of casting technology, and in particular to a novel guide channel structure for pouring molten steel. Background Technology

[0002] Iron-based amorphous alloy strip is a new type of material widely used in the manufacture of automotive electric motors. The preparation process of iron-based amorphous alloy strip differs from the traditional casting process. The preparation of iron-based amorphous alloy strip is highly sensitive to the intermediate process of molten steel, requiring the molten steel temperature to be kept constant and uniform throughout the process. If the temperature of the molten steel changes during the turnover before forming, it will cause oxidation of the molten steel, which will affect the quality of the final strip. Oxidation of the molten steel will damage components such as silicon and boron, resulting in a decrease in the quality and overall magnetic properties of the strip.

[0003] There is a certain distance between the induction furnace and the forming nozzle. A guide channel needs to be set up to guide the molten metal in the induction furnace to the nozzle. In the existing technology, the guide channel is usually the same as that used in the ordinary casting process. It is an open guide channel with an opening at the top. The molten metal will come into direct contact with the air, which will lower the temperature of the molten metal and make it more susceptible to oxidation by the air, thus reducing the performance of the product. Utility Model Content

[0004] The purpose of this invention is to provide a novel guide channel structure for molten amorphous strip steel to solve the problems mentioned in the background art.

[0005] A novel guide channel structure for molten amorphous strip steel is characterized by comprising a guide cup, a guide tube fixed to the bottom end of the guide cup, the guide cup being connected to the guide tube, a heating tube being sleeved on the guide tube, the guide tube having a hollow structure, an insulation layer being sleeved on the guide tube, a filter device being provided at the tail end of the guide tube, and a guide tube being connected to the tail end of the guide tube.

[0006] Preferably, the heating tubes are spirally arranged around the drainage tube, and the heating tubes are arranged in a gradually denser spiral from the head end to the tail end.

[0007] Preferably, the drainage tube is inclined.

[0008] Preferably, it also includes a circulation system, which includes a circulation pump and a water tank. The water inlet pipe of the circulation pump is connected to the water tank, the delivery pipe of the circulation pump is connected to the end of the heating pipe near the guide cup, and the end of the heating pipe away from the guide cup is connected to the water tank.

[0009] Preferably, the guide cup is conical.

[0010] Preferably, the device further includes a controller electrically connected to a temperature sensor, the temperature sensor being fixedly connected to the filter device, and the controller also electrically connected to a circulation pump.

[0011] Compared with the prior art, the advantages of this utility model are as follows: This utility model adopts a brand-new fully enclosed transmission mode, which can effectively keep the temperature and prevent the molten steel from losing temperature and causing oxidation and other impurities. The wide-mouthed conical guide cup can better receive the molten steel. The guide tube is tubular and has an induction coil, i.e., a heating tube, inside. When the induction coil is energized, it can heat the molten steel flowing through the middle of the guide tube to offset the temperature loss of the molten steel during the flow process. The temperature sensor inside the guide tube can feed back temperature data to the processor. The processor can adjust the power of the heating tube according to the temperature change, thereby performing intelligent regulation and controlling the temperature of the molten steel accurately and stably. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0013] Figure 2 This is a schematic diagram of the spiral structure of the heating tube inside the drainage tube in one embodiment of the present invention.

[0014] In the diagram: 1. Flow guide cup; 2. Drainage tube; 21. Heating tube; 3. Circulation system; 31. Circulation pump; 32. Water tank; 33. Power supply; 4. Filter device; 5. Flow guide tube. Detailed Implementation

[0015] The following will describe specific embodiments and appendices. Figure 1-2 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0016] A novel guide channel structure for pouring molten amorphous strip steel includes a guide cup 1, which is conical in shape to more easily receive the molten steel poured from the induction furnace. The guide cup 1 is wider at the top and narrower at the bottom to facilitate receiving and prevent the molten steel from splashing out.

[0017] A guide tube 2 is fixed to the bottom of the guide cup 1. The guide tube 2 has a hollow structure. The guide cup 1 and the guide tube 2 are connected. Molten steel can flow from the guide cup 1 into the guide tube 2 and flow along the internal cavity of the guide tube 2. The guide tube 2 is made of high-temperature resistant material to prevent it from being burned by the heat transferred from the molten steel. The guide tube 2 is sleeved on a heating tube 21. The heating tube 21 is a hollow copper tube and is arranged in a spiral. The two ends of the heating tube 21 converge directly below the heating tube 21 and are electrically connected to a power supply 33. When the power supply 33 supplies power to the heating tube 21... When energized, an alternating magnetic field is generated inside the heating tube 21. This alternating magnetic field acts on the molten metal, heating it. An inner tube is also connected inside the heating tube 21, through which the molten metal flows, preventing direct contact with the heating tube and potential melting. The inner tube is made of a high-temperature resistant material. The heating tubes 21 are spirally arranged, gradually becoming denser from one end to the other. When alternating current is applied to both ends of the heating tube 21, an alternating magnetic field is formed within the space it encloses. The flowing molten metal is heated under the influence of the eddy current effect. The more sparsely the spiral arrangement of the heat pipes 21, the lower the heating power received by the molten metal; the more tightly the spiral arrangement of the heat pipes 21, the higher the heating power received by the molten metal. The sparse arrangement of the spiral tubes at the beginning of the guide tube 2 is because the molten metal first contacts the beginning of the guide tube 2, resulting in less temperature loss. The end, being farther from the furnace, experiences greater temperature loss as the molten metal flows towards it. Therefore, the density of the heating pipe arrangement 21 is set according to the temperature loss curve, enabling the molten metal to maintain a specific temperature under the heating of the heat pipes 21. A circulation system 3 is provided outside the guide tube 2, and the circulation system 3 includes... The device includes a circulating pump 31 and a water tank 32. The water inlet pipe of the circulating pump 31 is connected to the water tank 32, and the delivery pipe of the circulating pump 31 is connected to the end of the heating pipe 21 near the guide cup 1. The end of the heating pipe 21 away from the guide cup 1 is connected to the water tank 32. When the circulating pump 31 starts working, the cooling water in the water tank 32 will flow continuously from the head end to the tail end of the heating pipe 21 to cool the heating pipe 21 and prevent it from melting due to high temperature. After being cooled by the circulating system 3, the device can continuously heat the molten metal flowing through it.

[0018] A filter device 4 is provided at the tail end of the drain pipe 2. The filter device 4 is existing technology and can filter and remove slag from the molten metal. A guide pipe 5 is connected to the tail end of the drain pipe 2. The guide pipe 5 is telescopically slidably connected to the tail end of the drain pipe 2. The guide pipe 5 can telescopically approach the tilting position, which can reduce the contact between the molten metal and air, protect the molten metal from oxidation, and reduce the temperature loss of the molten metal, thereby improving the quality of the molten metal and ensuring the quality of strip forming.

[0019] The drainage tube 2 is inclined at an angle of 15°, which facilitates the drainage of molten metal.

[0020] It also includes a controller, which is existing technology. The controller is electrically connected to the power supply 33 and a temperature sensor, which is fixedly connected to the filter device 4. The controller is also electrically connected to the circulation pump 31. The temperature sensor can provide real-time feedback on the surface temperature of the molten metal at the tail of the guide tube 2. The controller then controls the output power of the power supply 33. Based on the feedback from the temperature sensor, if the temperature is higher than the normal temperature range, the controller will control the power supply 33 to reduce the output power. If the temperature is lower than the normal temperature range, the controller will control the power supply 33 to increase the output power, thereby maintaining the temperature of the molten metal flowing out of the guide tank and ensuring the stable quality of the final strip product. At the same time, the controller can control the start and stop of the circulation pump and the output power, thereby controlling the speed at which the circulation pump pumps cooling water, thus ensuring the safe use of the heating tube.

[0021] Except for the technical features described in the specification, all other technologies are known to those skilled in the art.

[0022] In this utility model, "upper", "lower", "left", "right", "front" and "back" are relative positions used to facilitate the description of positional relationships, and therefore cannot be understood as absolute positions as a limitation on the scope of protection.

[0023] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A novel guide channel structure for molten amorphous strip steel casting, characterized in that, It includes a flow guide cup, a flow tube fixed to the bottom end of the flow guide cup, the flow guide cup and the flow tube are connected, a heating tube is wrapped around the flow tube, the flow tube has a hollow structure, a heat insulation layer is wrapped around the flow tube, a filter device is provided at the tail end of the flow tube, and a flow guide tube is connected to the tail end of the flow tube.

2. The novel guide channel structure for molten amorphous strip steel according to claim 1, characterized in that, The heating tubes are spirally arranged around the drainage tube, and the spiral arrangement of the heating tubes gradually becomes denser from the head end to the tail end.

3. The novel guide channel structure for molten amorphous strip steel according to claim 2, characterized in that, The drainage tube is installed at an angle.

4. The novel guide channel structure for molten amorphous strip steel according to claim 3, characterized in that, It also includes a circulation system, which includes a circulation pump and a water tank. The water inlet pipe of the circulation pump is connected to the water tank, and the delivery pipe of the circulation pump is connected to the end of the heating pipe near the guide cup. The end of the heating pipe away from the guide cup is connected to the water tank.

5. The novel guide channel structure for molten amorphous strip steel according to claim 1, characterized in that, The flow guide cup is cone-shaped.

6. The novel guide channel structure for molten amorphous strip steel according to claim 4, characterized in that, It also includes a controller electrically connected to a temperature sensor, which is fixedly connected to the filter device, and the controller is also electrically connected to the circulation pump.

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