Casting device based on metal smelting

Abstract

The invention provides a casting device based on metal smelting, and belongs to the field of metal smelting. The technical problem to be solved is that waste heat is utilized to preheat smelting materials, and energy waste is reduced. The device comprises a base which is fixed beside a smelting furnace, and further comprises a heat absorption assembly which is connected with a support, the support is connected with the base, the suction side of the preheating assembly is communicated with the middle of the heat absorption assembly, and the discharge side of the preheating assembly is communicated with the edge of the heat absorption assembly. The heat absorption assembly comprises an outer shell and an inner shell, the inner shell divides the lower space of the outer shell into an inner side space and an outer side space, the inner side space is communicated with the preheating assembly through an exhaust port, and the outer side space is communicated with the preheating assembly through an air inlet.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of metal smelting, and particularly relates to a casting device based on metal smelting. BACKGROUND

[0002] In the field of metal smelting processing, a large amount of high-temperature waste heat is usually generated during the operation of a smelting furnace. Taking a common induction smelting furnace or arc smelting furnace as an example, the exhaust gas temperature can reach 600-1000 DEG C. These waste heat is often directly discharged through a chimney or discharged after being treated through a simple cooling system, resulting in significant energy loss.

[0003] The preheating treatment of smelting raw materials in the industry mainly depends on independent heating devices, such as electric heating preheating furnaces or gas preheating furnaces. This method not only consumes a large amount of primary energy, but also increases the production cost.

[0004] In view of the above, the application provides a casting device based on metal smelting. SUMMARY

[0005] Therefore, the application aims to provide a casting device based on metal smelting, which solves the technical problem of preheating smelting materials by using waste heat and reducing energy waste.

[0006] To achieve the above-mentioned purpose, the application adopts the following technical scheme: a casting device based on metal smelting, comprising a base fixed beside a smelting furnace, a heat absorption assembly connected with a support, the support being connected with the base, a preheating assembly connected with the middle part of the heat absorption assembly on the suction side, and the preheating assembly being connected with the edge of the heat absorption assembly on the discharge side.

[0007] Further, the heat absorption assembly comprises an outer shell and an inner shell, the inner shell divides the lower space of the outer shell into two parts, i.e. an inner space and an outer space, the inner space is connected with the preheating assembly through a discharge port, and the outer space is connected with the preheating assembly through an air inlet.

[0008] Further, the inner space is provided with an exhaust fan.

[0009] Further, the inner shell has a larger lower opening radius than an upper opening radius.

[0010] Further, the preheating assembly comprises an air inlet space, a first chamber and a second chamber, the air inlet space is connected with the first chamber and the second chamber respectively, and the air inlet space is connected with the discharge port.

[0011] Further, the intake space is connected with a lower communication channel, the lower communication channel is connected with the second chamber, the first chamber is provided with a first intake port near the lower side of the first chamber, and the intake space is provided with a valve one, which is used for controlling the gas to pass through the first intake port or the lower communication channel.

[0012] Further, an intermediate communication channel is arranged between the first chamber and the second chamber, and the lower communication channel is provided with a valve two, which is used for controlling the gas to pass through the intermediate communication channel to enter the second chamber or pass through the lower communication channel to enter the second chamber.

[0013] Further, the first chamber and the second chamber are respectively provided with a discharge port one and a discharge port two, and the discharge port one and the discharge port two are connected with a discharge pipe.

[0014] Further, the discharge port one and the discharge port two are respectively provided with a valve for controlling the opening and closing thereof.

[0015] Beneficial effects

[0016] 1. The material to be smelted is preheated by discharging hot gas into the preheating assembly, and then the cooled gas is transported back to the furnace port, at this time, the return gas is higher than the external air temperature, which can return and reheat on one hand, and reduce the heat loss on the other hand, and can also reduce the cold air entering the inside space.

[0017] 2. The inside space and the outside space of the heat absorption assembly are divided by the outer shell and the inner shell, which can return the gas for preheating.

[0018] 3. The preheating assembly is divided into regions and controlled by switches, so that the staged preheating can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings constituting a part of this application are used to provide further understanding of the application, the illustrative embodiments of the application and the description thereof are used to explain the application, and do not constitute improper limitation on the application. In the drawings: Figure 1 It is a whole structure schematic view of the casting device based on metal smelting according to the application; Figure 2 It is a structure schematic view of the heat absorption assembly according to the application; Figure 3 It is a structure schematic view of the preheating assembly according to the application; Figure 4 It is a sectional view of the preheating assembly according to the application.

[0020] In the figure: heat absorption assembly 1; outer shell 1-1; inner shell 1-2; exhaust port 1-3; air inlet 1-4; support 2; base 3; preheating assembly 4; air intake space 4-1; first chamber 4-2; second chamber 4-3; lower communication channel 4-4; intermediate communication channel 4-5; first air inlet 4-6; valve 1 4-7; upper inlet 4-8; lower outlet 4-9; valve 2 4-10; exhaust port 1 4-11; exhaust port 2 4-12; exhaust pipe 5; exhaust fan 6. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict, and the described embodiments are only a part of the embodiments of the present application, not all the embodiments.

[0022] It should be noted that the descriptions of "left", "right", "left side", "right side", "upper part", "lower part", "top", "bottom" and the like in the present application are all defined based on the positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the described structure must be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0023] In the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] Referring to the accompanying drawings, a casting device based on metal smelting is provided, which comprises a base 3 fixed beside a smelting furnace, a heat absorption assembly 1 connected with a support 2, the support 2 being connected with the base 3, a preheating assembly 4 connected with the middle part of the heat absorption assembly 1 on the suction side, and the preheating assembly 4 being connected with the edge of the heat absorption assembly 1 on the discharge side. The base 3 is fixed on one side of the smelting furnace and serves as a support point for the entire device. The support 2 can be rotatably connected with the base 3 and driven by a motor. When material is added to the smelting furnace, the heat absorption assembly 1 can be moved away from the smelting furnace opening. Hot gas is transmitted to the preheating assembly 4 through the heat absorption assembly 1 and heats the material. The remaining hot gas enters the side position of the heat absorption assembly 1 through the exhaust pipe 5, which can return the heat to the furnace opening for reheating, or can reduce the entry of cold air and lower the temperature of the furnace opening.

[0025] In the embodiment, the heat absorption assembly 1 comprises an outer shell 1-1 and an inner shell 1-2, the inner shell 1-2 divides the lower space of the outer shell 1-1 into two parts, i.e. an inner space and an outer space, the inner space is communicated with the preheating assembly 4 through the exhaust port 1-3, and the outer space is communicated with the preheating assembly 4 through the air inlet 1-4. The heated hot gas is first discharged into the preheating assembly 4 in the inner space, and after preheating, the gas still containing hot gas is returned to the outer space through the exhaust pipe 5, so that the waste heat can be recycled, and the excessive external cold air can be reduced, and the furnace mouth temperature can be reduced.

[0026] In the embodiment, the inner space is provided with an exhaust fan 6. The exhaust fan 6 drives the hot gas to flow.

[0027] In the embodiment, the lower opening radius of the inner shell 1-2 is greater than the upper radius. The large lower opening can spray the hot gas to the surrounding, and reduce the external gas entering the inner space.

[0028] In the embodiment, the preheating assembly 4 comprises an air inlet space 4-1, a first chamber 4-2 and a second chamber 4-3, the air inlet space 4-1 is communicated with the first chamber 4-2 and the second chamber 4-3 respectively, and the air inlet space 4-1 is communicated with the exhaust port 1-3. Both chambers can preheat the material, or preheat in sequence.

[0029] In the embodiment, the air inlet space 4-1 is communicated with a lower communication channel 4-4, the lower communication channel 4-4 is communicated with the second chamber 4-3, the first chamber 4-2 is provided with a first air inlet 4-6 close to the lower side of the first chamber 4-2, the air inlet space 4-1 is provided with a valve 4-7, and the valve 4-7 is used for controlling the gas to pass through the first air inlet 4-6 or the lower communication channel 4-4. When the valve 4-7 opens the first air inlet 4-6, the hot gas can enter the first chamber 4-2 to heat the chamber first, and then the hot gas is discharged into the exhaust pipe 5 through the exhaust port 4-11. When the valve 4-7 closes the first air inlet 4-6, the hot gas enters the lower communication channel 4-4 and then enters the second chamber 4-3 to heat the chamber, and then the hot gas is discharged into the exhaust pipe 5 through the exhaust port 4-12.

[0030] In the embodiment, the first chamber 4-2 and the second chamber 4-3 are provided with an intermediate communication passage 4-5, and the lower communication passage 4-4 is provided with a valve 4-10, which is used to control the gas to enter the second chamber 4-3 through the intermediate communication passage 4-5 or the lower communication passage 4-4. When the valve 4-7 opens the first gas inlet 4-6, the hot gas enters the first chamber 4-2, the discharge outlet 4-11 is closed, the gas enters the intermediate communication passage 4-5 through the upper inlet 4-8, the valve 4-10 is rotated to separate the lower communication passage 4-4 from the second chamber 4-3, at this time, the lower outlet 4-9 is opened, the gas enters the second chamber 4-3, and the staged preheating is realized, and then the gas enters the discharge pipe 5 through the discharge outlet 2-12.

[0031] In the embodiment, the first chamber 4-2 and the second chamber 4-3 are provided with a discharge outlet 4-11 and a discharge outlet 4-12, respectively, and the discharge outlet 4-11 and the discharge outlet 4-12 are connected with the discharge pipe 5.

[0032] In the embodiment, the discharge outlet 4-11 and the discharge outlet 4-12 are respectively provided with a valve for controlling the opening and closing thereof.

[0033] The inlets of the first chamber 4-2 and the second chamber 4-3 are arranged at the lower part, and the discharge outlets are arranged at the upper part.

[0034] The filter material is arranged at the discharge outlet 1-3, so as to reduce the impurities entering the preheating assembly 4.

[0035] The above disclosed embodiments of the application are only used to help explain the application. The embodiments do not describe all the details, nor limit the application to the specific embodiments. According to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments, in order to better explain the principles and practical applications of the application, so that the persons skilled in the art can well understand and utilize the application.

Claims

1. A foundry device based on metal melting, comprising a base (3) fixed next to a melting furnace, characterized in that, It also includes a heat absorption assembly (1) connected with a support (2), the support (2) is connected with the base (3), the preheating assembly (4) suction side and the middle part of the heat absorption assembly (1) are connected, and the preheating assembly (4) discharge side and the edge of the heat absorption assembly (1) are connected.

2. A casting device based on metal melting as claimed in claim 1, characterized in that: The heat absorption assembly (1) includes an outer shell (1-1) and an inner shell (1-2), the inner shell (1-2) divides the lower space of the outer shell (1-1) into two parts, which are the inner space and the outer space, the inner space is connected with the preheating assembly (4) through the exhaust port (1-3), and the outer space is connected with the preheating assembly (4) through the air inlet (1-4).

3. A casting device based on metal melting according to claim 2, characterized in that: The inner space is provided with an exhaust fan (6).

4. A foundry apparatus based on metal melting as claimed in claim 2, wherein: The lower opening radius of the inner shell (1-2) is greater than the upper radius.

5. A foundry apparatus based on metal melting as claimed in claim 2, wherein: The preheating assembly (4) includes an air inlet space (4-1), a first chamber (4-2) and a second chamber (4-3), the air inlet space (4-1) is connected with the first chamber (4-2) and the second chamber (4-3) respectively, and the air inlet space (4-1) is connected with the exhaust port (1-3).

6. A casting device based on metal melting according to claim 5, characterized in that: The air inlet space (4-1) is connected with a lower communication channel (4-4), the lower communication channel (4-4) is connected with the second chamber (4-3), the first chamber (4-2) is provided with a first air inlet (4-6) close to the lower side of the first chamber (4-2), the air inlet space (4-1) is provided with a valve one (4-7), and the valve one (4-7) is used for controlling the gas to pass through the first air inlet (4-6) or the lower communication channel (4-4).

7. A casting device based on metal melting according to claim 6, characterized in that: The first chamber (4-2) and the second chamber (4-3) are provided with an intermediate communication channel (4-5), the lower communication channel (4-4) is provided with a valve two (4-10), and the valve two (4-10) is used for controlling the gas to pass through the intermediate communication channel (4-5) and enter the second chamber (4-3) or pass through the lower communication channel (4-4) and enter the second chamber (4-3).

8. A casting device based on metal melting according to claim 7, characterized in that: The first chamber (4-2) and the second chamber (4-3) are respectively provided with an exhaust port one (4-11) and an exhaust port two (4-12), and the exhaust port one (4-11) and the exhaust port two (4-12) are connected with the exhaust pipe (5).

9. A casting device based on metal melting according to claim 8, characterized in that: The exhaust port one (4-11) and the exhaust port two (4-12) are respectively provided with valves for controlling the opening and closing thereof.

Images