Molten iron supply device

Abstract

The utility model relates to the field of patent application, and particularly discloses a molten iron supply device which is arranged on a molten iron conveying pipeline, molten iron is input into the initial end of the molten iron conveying pipeline, and the tail end of the molten iron conveying pipeline is communicated with a mold. Comprising a slag collecting kettle, the slag collecting kettle is communicated with an input pipe and an output pipe which are horizontally arranged, the input pipe is communicated with the starting end of a molten iron conveying pipe, and the output pipe is communicated with the tail end of the molten iron conveying pipe; the included angle of the tangent line of the communicating part of the input pipe and the slag collecting kettle ranges from 15 degrees to 45 degrees; the communicating height of the input pipe and the slag collecting kettle is higher than that of the output pipe and the slag collecting kettle. A heat insulation plate is arranged at the bottom of the residue collection kettle; a vibration motor is arranged on the heat insulation plate; a kettle opening of the slag collecting kettle is butted with a kettle cover, and a riser is arranged on the kettle cover; the problems that according to a traditional slagging-off method, a large amount of manpower needs to be consumed for short-distance slag salvaging, the temperature of molten iron is lost due to long operation time, workers are prone to being scalded and inhaled harmful gas, and the like are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of molten iron slag removal equipment, and more specifically, to a molten iron supply device. Background Technology

[0002] After iron raw materials are refined into molten iron, the slag needs to be removed before it is poured into the mold for casting. Traditional slag removal of molten iron mainly relies on physical separation and manual operation.

[0003] The slag removal method, as the most primitive slag removal method, takes advantage of the fact that slag has a lower density than molten iron and naturally floats. Workers then manually scoop up the slag that has accumulated on the surface of the molten iron using long-handled iron rakes (slag scoops). Because the factory needs to operate continuously, a large amount of molten iron needs to stand still for a long time before the slag floats to the surface and is then manually scooped up by multiple workers. Since the molten iron is exposed to the open air, it cools down quickly, resulting in temperature loss. At the same time, there are also problems such as workers being in close contact with high-temperature molten iron for a long time, which can easily lead to burns or inhalation of harmful gases. Utility Model Content

[0004] The purpose of this utility model is to provide a molten iron supply device that solves the problems of traditional slag removal methods, which require a lot of manpower to remove slag at close range, have long operation time leading to molten iron temperature loss, and are also prone to scalding workers and causing workers to inhale harmful gases.

[0005] This utility model is achieved through the following technical solution: a molten iron supply device, which is installed on a molten iron conveying pipeline, wherein molten iron is input at the beginning of the molten iron conveying pipeline, and the end of the molten iron conveying pipeline is connected to a mold;

[0006] It includes a slag collecting vessel, on which a horizontally arranged input pipe and an output pipe are connected. The input pipe is connected to the beginning of the molten iron conveying pipe, and the output pipe is connected to the end of the molten iron conveying pipe.

[0007] The angle between the tangent at the connection point between the input pipe and the slag collection vessel is 15°-45°.

[0008] Furthermore, the height at which the input pipe connects to the slag collection vessel is higher than the height at which the output pipe connects to the slag collection vessel.

[0009] Furthermore, a heat insulation plate is provided at the bottom of the slag collection vessel, and a vibration motor is provided on the heat insulation plate.

[0010] Furthermore, the bottom array of the heat insulation plate is provided with several shock-absorbing feet;

[0011] The vibration motor is located at the center of the bottom surface of the heat insulation plate.

[0012] Furthermore, the slag collection vessel is fitted with a vessel cover at its opening, and the vessel cover is provided with a riser.

[0013] Furthermore, a hanging handle is also provided on the lid of the vessel.

[0014] Furthermore, the output pipe is connected to the bottom of the slag collection vessel.

[0015] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0016] 1. Molten iron enters the slag collecting vessel at a tangential angle of 15°-45° along the inner wall. The molten iron then rotates like a tornado inside the vessel. As the molten iron rotates, its density is higher than that of the slag. Under the action of centrifugal force, the molten iron moves towards the inner wall of the vessel, while the slag accumulates in the center. Workers only need to wait for the slag to accumulate to a certain extent before scooping it away with a slag scraper.

[0017] 2. A heat insulation plate is installed at the bottom of the slag collection vessel, and a vibration motor is installed on the heat insulation plate. The vibration motor is located at the center of the bottom surface of the heat insulation plate 4. The vibration motor drives the slag collection vessel to vibrate regularly. Combined with the tangential flow generated by the rotation of molten iron and the vertical disturbance caused by the vibration, a three-dimensional vortex is formed, which enhances the efficiency of slag collection towards the center of the surface. This allows the slag in the molten iron to be separated more quickly, meeting the requirement of rapid slag separation in flowing molten iron separation. This allows the molten iron to be separated from slag at a higher conveying speed, further improving the purity of the molten iron after slag separation.

[0018] 3. The main purpose of installing a lid on the slag collection vessel is to keep the vessel warm and prevent excessive heat loss of molten iron. When cleaning the slag in the slag collection vessel regularly, simply open the lid, remove the slag, and then close the lid again. The riser on the lid can be used for venting and slag collection. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the internal structure of a molten iron supply device provided by this utility model;

[0021] Figure 2 for Figure 1 Schematic diagram of the cross section at point AA;

[0022] Figure 3 for Figure 1 Schematic diagram of the cross-section at point BB;

[0023] Icons: 1. Slag collection vessel, 2. Input pipe, 3. Output pipe, 4. Insulation plate, 5. Vibration motor, 6. Vibration damping foot, 7. Vessel lid, 71. Riser, 72. Hanging handle. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] Reference Figures 1 to 3 As shown, this embodiment provides a molten iron supply device, which is installed on a molten iron conveying pipeline. Molten iron is input at the beginning of the molten iron conveying pipeline, and the end of the molten iron conveying pipeline is connected to a mold. It includes a slag collection vessel 1, and a horizontally arranged input pipe 2 and output pipe 3 are connected to the slag collection vessel 1. The input pipe 2 is connected to the beginning of the molten iron conveying pipeline, and the output pipe 3 is connected to the end of the molten iron conveying pipeline. In specific implementation, a receiving vessel is set at the input end of the molten iron conveying pipeline to load the freshly melted iron. The height of the receiving vessel is higher than that of the slag collection vessel 1. Under the action of gravity, the molten iron is transported to the slag collection vessel 1 through the molten iron conveying pipeline. More specifically, after the receiving vessel is loaded with molten iron, a sealing cover is placed on the receiving vessel. An air compressor is connected to the receiving vessel through an air pipe through the sealing cover. The air compressor pumps air into the receiving vessel. Under the action of air pressure, the molten iron enters the molten iron conveying pipeline from the bottom of the receiving vessel and then enters the slag collection vessel 1.

[0027] More specifically, such as Figure 1 and Figure 2As shown, the angle between the tangent at the connection point between the input pipe 2 and the slag collecting vessel 1 ranges from 15° to 45°. The molten iron then enters tangentially along the inner wall of the slag collecting vessel 1, and subsequently rotates like a tornado within the vessel. It is important to note that the height at which the input pipe 2 connects to the slag collecting vessel 1 is higher than the height at which the output pipe 3 connects to the vessel. When the height of the molten iron in the slag collecting vessel 1 exceeds the height of the input pipe 2, the molten iron collected in the vessel continues to be driven to rotate by the subsequently entering molten iron. Then, the output pipe 3 is opened to output the molten iron, maintaining the same rate as the input rate to ensure sufficient molten iron in the slag collecting vessel 1. If necessary, an electromagnetic heater is installed at the output end to ensure the temperature of the molten iron is above 1350 degrees Celsius, facilitating its flow.

[0028] like Figure 3 As shown, the output pipe 3 is connected to the bottom of the slag collection vessel 1. The setting of the output pipe 3 is not restricted in many ways. It can be set up similarly to the input pipe 2. The angle between the tangent at the connection between the output pipe 3 and the slag collection vessel 1 is 0°-45°, which facilitates the discharge of rotating molten iron. It can also be coaxial with the slag collection vessel 1, that is, set vertically, which facilitates the subsequent drainage of molten iron in the slag collection vessel 1.

[0029] like Figure 2 As shown, when the molten iron in the slag collecting vessel 1 is rotating, because the density of the molten iron is higher than that of the slag, the molten iron will move towards the inner wall of the slag collecting vessel 1 under the action of centrifugal force, while the slag will gather in the center. Then, the worker only needs to wait for the slag to gather to a certain extent before scooping it away with a slag scraper.

[0030] More specifically, such as Figure 1 As shown, a heat insulation plate 4 is installed at the bottom of the slag collection vessel 1, and a vibration motor 5 is installed on the heat insulation plate 4. The vibration motor 5 is located at the center of the bottom surface of the heat insulation plate 4. The vibration motor 5 drives the slag collection vessel 1 to vibrate regularly. Combined with the tangential flow generated by the rotation of molten iron and the vertical disturbance caused by the vibration, a three-dimensional vortex is formed, which enhances the efficiency of slag collection towards the center of the surface. This allows the slag in the molten iron to be separated more quickly, meeting the requirement of rapid slag separation in flowing molten iron separation. This allows the molten iron to be separated from slag at a higher conveying speed, further improving the purity of the molten iron after slag separation.

[0031] As another embodiment, when the molten iron can meet the purity requirements by rotating and separating the slag, the vibration motor 5 does not need to be started during the rotation and separation of molten iron; after the input pipe 2 stops supplying molten iron, the vibration motor 5 can be started separately when cleaning the floating slag, so that the molten iron and slag in the slag collection vessel 1 can be separated quickly.

[0032] It should be noted that the vibratory motor 5 mainly provides longitudinal vibration and cannot vibrate at high frequencies. It is usually 10-50Hz (low frequency is preferred). High frequency vibration can easily cause the slag particles to break, while low frequency promotes polymerization. At the same time, the amplitude should be 1mm-5mm. Too large an amplitude will cause splashing, and too small an amplitude will result in a weak effect.

[0033] At the same time, such as Figure 1 As shown, to prevent the vibration motor 5 from damaging the ground and causing excessive noise, several vibration-damping feet 6 are arranged in an array at the bottom of the insulation plate 4. The vibration-damping feet 6 also serve as support feet for the insulation plate 4 to the ground, and are used for vibration isolation and damping. The vibration-damping feet 6 can be selected from conventional equipment shock absorbers or rubber pads, but spring shock absorbers or hydraulic shock absorbers are the best. The selection can be made according to actual needs and budget, and there are no restrictions here.

[0034] More specifically, such as Figure 1 As shown, the slag collecting kettle 1 is fitted with a kettle cover 7 at its mouth, and a riser 71 is provided on the kettle cover 7. The kettle cover 7 is mainly used for heat preservation of the slag collecting kettle 1 to prevent excessive heat loss of molten iron. When cleaning the slag in the slag collecting kettle 1 regularly, the kettle cover 7 is opened and the slag is removed, and then the kettle cover 7 is closed again. The riser 71 on the kettle cover 7 can be used for venting and slag collection.

[0035] Meanwhile, a lifting handle 72 is also provided on the lid 7, which is connected to the hook of the crane to realize the opening and closing control of the lid 7.

[0036] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A molten iron supply device arranged on a molten iron conveying pipe, the beginning end of the molten iron conveying pipe being inputted with molten iron, the end of the molten iron conveying pipe being communicated with a mold; comprising a slag collecting kettle (1), a horizontally arranged input pipe (2) and an output pipe (3) being communicated with the slag collecting kettle (1), the input pipe (2) being communicated with the beginning end of the molten iron conveying pipe, the output pipe (3) being communicated with the end of the molten iron conveying pipe; the included angle of the tangent line at the communication position of the input pipe (2) and the slag collecting kettle (1) being 15°-45°. characterized in that The height of the communication position of the input pipe (2) and the slag collecting kettle (1) is higher than the height of the communication position of the output pipe (3) and the slag collecting kettle (1). The bottom of the slag collecting kettle (1) is provided with a heat insulation plate (4), the heat insulation plate (4) being provided with a vibration motor (5).

2. A molten iron supply device according to claim 1, characterized by The bottom of the heat insulation plate (4) is provided with a plurality of shock absorbing feet (6).

3. A molten metal supply apparatus according to claim 2, wherein The vibration motor (5) is located at the center of the bottom surface of the heat insulation plate (4).

4. A molten metal supply apparatus according to claim 3, wherein The kettle opening of the slag collecting kettle (1) is provided with a kettle cover (7), the kettle cover (7) being provided with a riser (71). The kettle cover (7) is further provided with a lifting handle (72).

5. A molten iron supply device according to any one of claims 1 to 4, characterized in that The output pipe (3) is communicated with the bottom of the slag collecting kettle (1).

6. A molten metal supply apparatus according to claim 5, wherein ​ 7. A molten metal supply apparatus according to claim 2, wherein ​

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