Alloy smelting furnace waste heat recycling device

Abstract

The utility model discloses an alloy smelting furnace waste heat recycling device which comprises two supporting frames, a smelting furnace assembly is arranged between the two supporting frames, a support is arranged on the outer wall of one side of the top of one supporting frame, a lifting air cylinder is arranged in the center of the top of the support, and a heat exchange assembly is installed at the output end of the lifting air cylinder through a bolt. The heat exchange assembly comprises a connecting plate, a barrel shell is arranged on the outer wall of one side of the bottom of the connecting plate, a honeycomb core is welded into the barrel shell, and a water conveying pipe and a drainage pipe are inserted into the outer walls of the two sides of the top of the connecting plate. According to the smelting furnace, after molten metal solution is poured, the lifting air cylinder can be started to enable the heat exchange assembly to be inserted into the furnace body, then the water pump is operated to be started, external cooling water flows into the water conveying pipe, then flows into the barrel shell and exchanges heat with the interior of the furnace body through the honeycomb core in the barrel shell, and therefore heat exchange is achieved. And subsequently, the cooling water continuously flows into the cylindrical shell, and the water in the cylindrical shell flows out through the drainage pipe, so that the purpose of recovering heat in the furnace body is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of smelting furnaces, in particular to a waste heat recovery and utilization device for an alloy smelting furnace. Background Art

[0002] The melting furnace uses 200-2500Hz medium frequency power supply for induction heating, with a power range of 20-2500KW. According to its characteristics, it can also be called a medium frequency electric furnace. It is mainly used for the melting and heating of precious metals such as gold, platinum, silver, copper, iron, stainless steel, aluminum alloy, aluminum and other metals. It is an ideal equipment for university laboratories, research institutes, jewelry processing, and precision casting processing.

[0003] Chinese patent number CN217504382U provides a waste heat recovery device for an aluminum alloy smelting furnace, including a smelting furnace body, an outer insulation box is arranged outside the smelting furnace body, a heat exchange chamber is arranged between the outer insulation box and the smelting furnace body, a waste heat recovery device is arranged on the outer insulation box, the waste heat recovery device includes a water inlet pipe fixedly installed on the outer insulation box and connected to the heat exchange chamber and a delivery pump arranged on one side of the outer insulation box, a solenoid valve is arranged on the water inlet pipe, an insulation pipe is fixedly installed on the water inlet end pipe body of the delivery pump, a covering component is also arranged on the outer insulation box, the covering component includes a support plate fixedly installed on the side of the outer insulation box, a support frame is fixedly installed on the support plate, and a drive motor is fixedly installed on the support frame. The utility model can recycle waste heat, improve the utilization rate of thermal energy, and is convenient to use.

[0004] After the smelting furnace is finished, the temperature inside it is still relatively high. In order to reduce the waste of resources, a water circulation device is used for heat exchange treatment to preheat the smelting furnace. However, most traditional water circulation devices achieve the purpose of preheating recovery by exchanging heat with the outside of the smelting furnace body. The external heat of the smelting furnace body is not much, and most of the heat is accumulated inside the smelting furnace body, resulting in the water circulation device being unable to fully recycle the waste heat of the smelting furnace. Utility Model Content

[0005] The purpose of the utility model is to provide a waste heat recovery and utilization device for an alloy smelting furnace to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste heat recovery device for an alloy smelting furnace, comprising two support frames, a smelting furnace assembly is arranged between the two support frames, a bracket is arranged on the outer wall on one side of the top of one of the support frames, and a lifting cylinder is arranged at the center of the top of the bracket, a heat exchange assembly is installed on the output end of the lifting cylinder by bolts, the heat exchange assembly comprises a connecting plate, a cylinder shell is arranged on the outer wall on one side of the bottom of the connecting plate, a honeycomb core is welded inside the cylinder shell, a water supply pipe and a drainage pipe are respectively connected to the outer walls on both sides of the top of the connecting plate, and the drainage pipe extends into the honeycomb core.

[0007] The smelting furnace assembly comprises a mounting shell, a furnace body is arranged inside the mounting shell, and a plurality of fins distributed in an upper and lower structure are welded on the outside of the furnace body.

[0008] Wherein, a water outlet pipe is inserted into the outer wall on one side of the bottom of the smelting furnace component, and an air outlet pipe is inserted into the outer wall on one side of the smelting furnace component.

[0009] Among them, a water inlet pipe is inserted into the outer wall of one side of the smelting furnace assembly, and one end of the water delivery pipe is connected to the water inlet pipe.

[0010] Among them, a shell is provided on an outer wall on one side of the top of one of the support frames, and a console is provided on the top of the other support frame.

[0011] Among them, a water pump is installed on the outer wall of one side of the top of one of the support frames by bolts, and the water pump is located inside the shell, and one end of the water inlet pipe is connected to the water outlet end of the water pump.

[0012] Wherein, the top end of the air outlet pipe is threadedly connected with a mounting tube, and the top end of the mounting tube is plugged with an air delivery pipe.

[0013] Wherein, an exhaust fan is installed inside the installation tube by bolts, and the exhaust fan is electrically connected to the control console through wires.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model provides a lifting cylinder and a heat exchange component. After the smelting furnace finishes pouring the molten metal solution, the lifting cylinder can be started to insert the heat exchange component into the furnace body, and then the water pump is operated to start, so that the external cooling water flows into the water pipe and then into the cylinder shell, and then the honeycomb core inside the cylinder shell is used to exchange heat with the furnace body. Subsequently, as the cooling water continues to flow into the cylinder shell, the water inside the cylinder shell will flow out through the drain pipe, thereby achieving the purpose of heat recovery inside the furnace body and reducing the waste of resources. By providing the air outlet pipe, the installation cylinder, the exhaust fan and the air supply pipe, When the water pump draws cooling water into the installation shell through the water inlet pipe, the cooling water will generate more water vapor due to heating. In this process, the exhaust fan will start, so that the water vapor inside the installation shell will flow out from the air outlet pipe, the installation cylinder and the air supply pipe to the external steam pipe, so as to avoid that the water vapor will cause a large pressure on the inner wall of the water outlet pipe when it is discharged into the water outlet pipe together with the cooling water, and to avoid the problem of the water outlet pipe being broken due to excessive pressure. The fins are set, and the design of the fins can increase the contact area between the outside of the furnace body and the cooling water entering the inside of the installation shell, thereby improving the heat exchange effect between the cooling water and the furnace body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the back plane structure of the support frame and smelting furnace assembly of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the smelting furnace assembly of the utility model;

[0019] Figure 4 This is a schematic diagram of the heat exchange component structure of the utility model

[0020] In the figure: 1. support frame; 2. smelting furnace assembly; 3. shell; 4. control console; 5. bracket; 6. lifting cylinder; 7. heat exchange assembly; 8. water pump; 9. water inlet pipe; 10. air outlet pipe; 11. water outlet pipe; 12. installation cylinder; 13. exhaust fan; 14. air supply pipe; 15. installation shell; 16. furnace body; 17. fins; 18. connecting plate; 19. cylinder shell; 20. water supply pipe; 21. drainage pipe; 22. honeycomb core. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides a technical solution: a waste heat recovery and utilization device for an alloy smelting furnace, comprising two support frames 1, a smelting furnace assembly 2 is arranged between the two support frames 1, a bracket 5 is arranged on the outer wall of one side of the top of one of the support frames 1, and a lifting cylinder 6 is arranged at the center of the top of the bracket 5, and a heat exchange assembly 7 is installed on the output end of the lifting cylinder 6 through bolts, and the heat exchange assembly 7 includes a connecting plate 18, a cylinder shell 19 is arranged on the outer wall of one side of the bottom of the connecting plate 18, a honeycomb core 22 is welded inside the cylinder shell 19, a water pipe 20 and a drainage pipe 21 are respectively plugged into the outer walls on both sides of the top of the connecting plate 18, and the drainage pipe 2 1 extends into the honeycomb core 22, and the honeycomb core 22 can improve the heat exchange effect between the cooling water and the cylinder shell 19. After the smelting furnace finishes pouring the molten metal solution, the lifting cylinder 6 can be started to insert the heat exchange component 7 into the furnace body 16, and then the water pump 8 can be operated to start, so that the external cooling water 20 flows into the water pipe, and then flows into the cylinder shell 19, and then heat is exchanged with the furnace body 16 through the honeycomb core 22 inside the cylinder shell 19. Subsequently, as the cooling water continues to flow into the cylinder shell 19, the water inside the cylinder shell 19 will flow out through the drain pipe 21, thereby achieving the purpose of recovering the heat inside the furnace body 16.

[0023] The smelting furnace assembly 2 includes a mounting shell 15, a furnace body 16 is arranged inside the mounting shell 15, and a plurality of fins 17 are welded on the outside of the furnace body 16 and distributed in an upper and lower structure. A water outlet pipe 11 is plugged into the outer wall of one side of the bottom of the smelting furnace assembly 2, an air outlet pipe 10 is plugged into the outer wall of one side of the smelting furnace assembly 2, and a water inlet pipe 9 is plugged into the outer wall of one side of the smelting furnace assembly 2, and one end of the water delivery pipe 20 is connected to the water inlet pipe 9. A shell 3 is provided on the outer wall of one side of the top of one of the support frames 1, and a control console 4 is provided on the top of another support frame 1. The top of one of the support frames 1 A water pump 8 is installed on the outer wall of one side by bolts. The model of the water pump 8 is preferably that when the water pump 8 is started, the cooling water will also flow into the interior of the installation shell 15 through the water inlet pipe 9, and then exchange heat with the outside of the furnace body 16. The subsequently heated hot water will flow out through the water outlet pipe 11, and during the heat exchange process, the design of the fins 17 can increase the contact area between the outside of the furnace body 16 and the cooling water entering the interior of the installation shell 15, thereby improving the heat exchange effect between the cooling water and the furnace body 16, and the water pump 8 is located inside the shell 3, and one end of the water inlet pipe 9 is connected to the water outlet end of the water pump 8.

[0024] Among them, the top of the air outlet pipe 10 is threadedly connected to the mounting cylinder 12, and the top of the mounting cylinder 12 is plugged with an air supply pipe 14, an exhaust fan 13 is installed inside the mounting cylinder 12 by bolts, and the exhaust fan 13 is electrically connected to the control console 4 through wires. When cooling water enters the mounting shell 15, the cooling water will generate more water vapor when heated. In this process, the exhaust fan 13 will be started, so that the water vapor inside the mounting shell 15 flows out from the air outlet pipe 10, the mounting cylinder 12 and the air supply pipe 14 to the external steam pipe, so as to avoid the water vapor being discharged into the water outlet pipe 11 together with the cooling water, causing a large pressure on the inner wall of the water outlet pipe 11, and to avoid the problem of the water outlet pipe 11 being broken due to excessive pressure.

[0025] Working principle: After the smelting furnace finishes pouring the molten metal solution, the lifting cylinder 6 can be started to insert the heat exchange component 7 into the furnace body 16, and then the water pump 8 can be operated to start, so that the external cooling water 20 flows into the water pipe, and then flows into the cylinder shell 19, and then exchanges heat with the furnace body 16 through the honeycomb core 22 inside the cylinder shell 19. Subsequently, as the cooling water continues to flow into the cylinder shell 19, the water inside the cylinder shell 19 will flow out through the drain pipe 21, thereby achieving the purpose of recovering the heat inside the furnace body 16 and reducing the waste of resources. At the same time, when the water pump 8 is started, the cooling water will also flow into the installation shell 15 through the water inlet pipe 9, and then exchange heat with the outside of the furnace body 16. Hot water will flow out through the water outlet pipe 11, and during the heat exchange process, the design of the fins 17 can increase the contact area between the outside of the furnace body 16 and the cooling water entering the inside of the installation shell 15, thereby improving the heat exchange effect between the cooling water and the furnace body 16. During the heat exchange process, when the cooling water enters the inside of the installation shell 15, the cooling water will generate more water vapor when heated. During this process, the exhaust fan 13 will be started, so that the water vapor inside the installation shell 15 flows out from the air outlet pipe 10, the installation tube 12 and the air supply pipe 14 to the external steam pipe, thereby avoiding that the water vapor is discharged into the water outlet pipe 11 together with the cooling water, causing a large pressure on the inner wall of the water outlet pipe 11, thereby avoiding the problem of the water outlet pipe 11 being broken due to excessive pressure.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for recovering waste heat from an alloy smelting furnace, comprising two support frames (1), characterized in that: A smelting furnace assembly (2) is provided between the two support frames (1), wherein a bracket (5) is provided on the outer wall of one side of the top of one of the support frames (1), and a lifting cylinder (6) is provided at the center of the top of the bracket (5), and a heat exchange assembly (7) is installed on the output end of the lifting cylinder (6) by bolts, and the heat exchange assembly (7) comprises a connecting plate (18), and a cylinder shell (19) is provided on the outer wall of one side of the bottom of the connecting plate (18), and a honeycomb core (22) is welded inside the cylinder shell (19), and a water pipe (20) and a drainage pipe (21) are respectively plugged into the outer walls on both sides of the top of the connecting plate (18), and the drainage pipe (21) extends into the honeycomb core (22).

2. The device for recovering waste heat from an alloy smelting furnace according to claim 1, characterized in that: The smelting furnace assembly (2) comprises a mounting shell (15), a furnace body (16) is arranged inside the mounting shell (15), and a plurality of fins (17) distributed in an upper and lower structure are welded to the outside of the furnace body (16).

3. The device for recovering waste heat from an alloy smelting furnace according to claim 1, characterized in that: A water outlet pipe (11) is inserted into the outer wall of one side of the bottom of the smelting furnace component (2), and an air outlet pipe (10) is inserted into the outer wall of one side of the smelting furnace component (2).

4. The device for recovering waste heat from an alloy smelting furnace according to claim 3, characterized in that: A water inlet pipe (9) is inserted into the outer wall of one side of the smelting furnace assembly (2), and one end of the water delivery pipe (20) is connected to the water inlet pipe (9).

5. The device for recovering waste heat from an alloy smelting furnace according to claim 4, characterized in that: A shell (3) is provided on an outer wall on one side of the top of one of the support frames (1), and a control console (4) is provided on the top of the other support frame (1).

6. The device for recovering waste heat from an alloy smelting furnace according to claim 5, characterized in that: A water pump (8) is mounted on an outer wall on one side of the top of one of the support frames (1) by means of bolts, and the water pump (8) is located inside the housing (3), and one end of the water inlet pipe (9) is connected to a water outlet end of the water pump (8).

7. The device for recovering waste heat from an alloy smelting furnace according to claim 5, characterized in that: The top end of the air outlet pipe (10) is threadedly connected to a mounting tube (12), and the top end of the mounting tube (12) is plugged with an air delivery pipe (14).

8. The device for recovering waste heat from an alloy smelting furnace according to claim 7, characterized in that: An exhaust fan (13) is installed inside the installation tube (12) by means of bolts, and the exhaust fan (13) is electrically connected to the control console (4) via wires.

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