Vacuum gas quenching furnace with waste heat recovery function for metal hot working treatment

Abstract

The utility model discloses a metal hot working vacuum gas quenching furnace with a waste heat recovery function, which comprises a vacuum furnace, the top of the vacuum furnace is fixedly connected with an exhaust pipe, the top of the vacuum furnace is fixedly connected with a gas outlet pipe, one side of the vacuum furnace is provided with a filter box, and the inside of the filter box is slidably connected with a mounting plate. An activated carbon plate is arranged in the mounting plate, a fixing block is fixedly connected to one side of the filter box, a sliding groove is formed in the fixing block, a limiting assembly is arranged in the sliding groove, and a chimney is fixedly connected to the top of the filter box. The vacuum gas quenching furnace solves the problems that waste gas is generated in the working process of a traditional vacuum gas quenching furnace, harmful substances such as volatile organic compounds and nitrogen oxides are possibly contained in the waste gas, the environment is polluted when the waste gas is discharged into the atmosphere, and the air quality and the ecological environment are influenced.

Description

Technical Field

[0001] The utility model relates to the field of vacuum gas quenching furnaces, in particular to a vacuum gas quenching furnace for metal heat processing with a waste heat recovery function. Background Art

[0002] The vacuum gas quenching furnace is a kind of equipment used for metal heat treatment, mainly used for quenching treatment of metal materials such as steel, alloys, etc. Its technical background involves fields such as heat treatment process, vacuum technology and atmosphere control. Heat treatment process: Heat treatment is a process of changing the organizational structure and performance of metal materials by controlling the heating, insulation and cooling process of metal materials. As a heat treatment equipment, the vacuum gas quenching furnace can provide functions such as high-temperature heating, insulation and rapid cooling to achieve quenching treatment of metal materials. Vacuum technology: Vacuum technology refers to the technology of forming a low pressure or vacuum state by extracting gas in a closed container. The vacuum gas quenching furnace adopts vacuum technology, which can effectively control the atmosphere in the furnace, avoid oxidation and contamination of metal materials, and improve the effect and quality of heat treatment.

[0003] Traditional vacuum gas quenching furnaces produce waste gas during operation. The waste gas may contain harmful substances, such as volatile organic compounds, nitrogen oxides, etc., which will pollute the environment and affect the air quality and ecological environment when discharged into the atmosphere. Utility Model Content

[0004] The utility model aims to provide a vacuum gas quenching furnace for metal heat treatment with a waste heat recovery function, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: it includes a vacuum furnace, the top of the vacuum furnace is fixedly connected with an exhaust pipe, the top of the vacuum furnace is fixedly connected with an outlet pipe, a filter box is arranged on one side of the vacuum furnace, a mounting plate is slidably connected to the inside of the filter box, an activated carbon plate is arranged on the inside of the mounting plate, a fixed block is fixedly connected to one side of the filter box, a slide groove is provided inside the fixed block, a limiting component is arranged inside the slide groove, a chimney is fixedly connected to the top of the filter box, an air inlet pipe is fixedly connected between the top of the outlet pipe and one side of the filter box, a waste heat recovery component is arranged on the outside of the vacuum furnace, a feed door is rotatably connected to one side of the vacuum furnace, and a discharge door is rotatably connected to the side of the vacuum furnace away from the feed door.

[0006] As a further preferred embodiment of the present technical solution, the limit assembly includes a slider, the slider is slidably connected to the inside of the slide groove, and a spring is fixedly connected between the top of the slider and the inner wall of the slide groove.

[0007] As a further preferred embodiment of the present technical solution, the limit assembly further includes a clamping block, which is slidably connected to the inside of the fixed block, the top of the clamping block is fixedly connected to the bottom of the slider, and a clamping groove is provided on the top of the mounting plate.

[0008] As a further preferred embodiment of the technical solution, a limiting groove is penetrated through one side of the fixed block, a shift rod is slidably connected inside the limiting groove, and one end of the shift rod is fixedly connected to one side of the slider.

[0009] As a further preferred embodiment of the present technical solution, one end of the block is provided with an inclined surface.

[0010] As a further preferred embodiment of the present technical solution, the waste heat recovery component comprises a heat absorption pipe, and the heat absorption pipe is spirally arranged on the outside of the vacuum furnace.

[0011] As a further preferred embodiment of the present technical solution, the waste heat recovery assembly also includes a water inlet connecting pipe, which is fixedly connected to one end of the heat absorbing tube, and an end of the heat absorbing tube away from the water inlet connecting pipe is fixedly connected to a water outlet connecting pipe.

[0012] The utility model provides a vacuum gas quenching furnace for metal heat treatment with waste heat recovery function, which has the following beneficial effects:

[0013] (1) The utility model uses an air pump built into the air inlet pipe to draw the exhaust gas from the inside of the vacuum furnace into the inside of the filter box through the exhaust pipe, and then adsorbs impurities in the exhaust gas through an activated carbon plate, and then discharges it through a chimney, thereby avoiding the problem of exhaust gas being discharged into the atmosphere, which will pollute the environment and affect the air quality and ecological environment, thereby increasing the practicality of the device.

[0014] (2) The utility model can release the fixation of the mounting plate by toggling the limit assembly, and then pull the mounting plate to drive the activated carbon plate to be detached from the interior of the filter box. When installing the activated carbon plate, it only needs to directly insert the mounting plate into the interior of the filter box for quick installation, thereby increasing installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a side view stereoscopic structural schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the filter box structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the limit assembly of the utility model;

[0019] In the figure: 1. vacuum furnace; 2. feed door; 3. exhaust pipe; 4. heat absorption pipe; 5. exhaust pipe; 6. intake pipe; 7. chimney; 8. filter box; 9. discharge door; 10. water outlet connecting pipe; 11. water inlet connecting pipe; 12. activated carbon plate; 13. mounting plate; 14. slot; 15. fixing block; 16. slider; 17. spring; 18. slide groove; 19. limit groove; 20. block; 21. lever. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figure 1-Figure 4 As shown, in the present embodiment, a vacuum gas quenching furnace for metal heat treatment with waste heat recovery function comprises a vacuum furnace 1, a vacuum furnace 1 having an exhaust pipe 3 fixedly connected to the top, an outlet pipe 5 fixedly connected to the top, a filter box 8 arranged on one side of the vacuum furnace 1, a mounting plate 13 slidably connected to the inside of the filter box 8, an activated carbon plate 12 arranged on the inside of the mounting plate 13, a fixed block 15 fixedly connected to one side of the filter box 8, a slide groove 18 provided inside the fixed block 15, a limiting assembly arranged inside the slide groove 18, a chimney 7 fixedly connected to the top of the filter box 8, an air inlet pipe 6 fixedly connected between the top of the outlet pipe 5 and one side of the filter box 8, a waste heat recovery assembly arranged on the outside of the vacuum furnace 1, a feed door 2 rotatably connected to one side of the vacuum furnace 1, and a discharge door 9 rotatably connected to the side of the vacuum furnace 1 away from the feed door 2.

[0022] First, the material to be processed is placed into the vacuum furnace 1 through the feed door 2, and then the vacuum pump is used to evacuate the exhaust pipe 3 to extract the air inside the furnace to create a vacuum environment. Once the required vacuum degree is reached, the metal material in the furnace begins to heat up. The heating is usually achieved by a resistance heater or an induction heater to make the metal material reach the required temperature. These are all existing technologies and will not be described in detail. Then, when the material is processed, the high temperature generated during heating can be absorbed by the waste heat recovery component and then recycled. Then, after the processing is completed, the exhaust gas is removed from the vacuum furnace 1 through the exhaust pipe 5 through the built-in air pump in the air inlet pipe 6. It is drawn into the interior of the filter box 8, and then the impurities in the exhaust gas are adsorbed by the activated carbon plate 12, and then discharged through the chimney 7, so as to avoid the problem that the exhaust gas is discharged into the atmosphere, which will pollute the environment and affect the air quality and ecological environment, thereby increasing the practicality of the device. Then, when the activated carbon plate 12 is replaced, the fixing of the mounting plate 13 can be released by toggling the limit assembly, and then the mounting plate 13 is pulled to drive the activated carbon plate 12 to detach from the interior of the filter box 8. When installing the activated carbon plate 12, you only need to insert the mounting plate 13 directly into the interior of the filter box 8 for quick installation, thereby increasing the installation efficiency.

[0023] like Figure 1-Figure 4 As shown, the limit assembly includes a slider 16, which is slidably connected to the inside of the slide groove 18, and a spring 17 is fixedly connected between the top of the slider 16 and the inner wall of the slide groove 18. The limit assembly also includes a clamping block 20, which is slidably connected to the inside of the fixed block 15, and the top of the clamping block 20 is fixedly connected to the bottom of the slider 16. A clamping groove 14 is provided on the top of the mounting plate 13, and a limit groove 19 is penetrated through one side of the fixed block 15. A lever 21 is slidably connected to the inside of the limit groove 19, and one end of the lever 21 is fixedly connected to one side of the slider 16, and one end of the clamping block 20 is provided with an inclined surface.

[0024] When replacing the activated carbon plate 12, the slider 16 is driven to move by toggling the lever 21, and the block 20 is driven to detach from the inside of the slot 14, thereby releasing the fixation of the mounting plate 13, and then the mounting plate 13 is pulled out to replace the activated carbon plate 12. Next, when installing the activated carbon plate 12, one side of the mounting plate 13 is inserted into the inside of the filter box 8, and then one side of the mounting plate 13 contacts the inclined surface of the block 20, thereby driving the block 20 to move and driving the slider 16 to compress the spring 17. Then, when the slot 14 moves to the bottom of the block 20, the slider 16 is driven to move under the reaction force of the spring 17, and the block 20 is automatically driven into the inside of the slot 14, completing the installation of the activated carbon plate 12.

[0025] like Figure 1-Figure 4As shown, the waste heat recovery component includes a heat absorption tube 4, which is spirally arranged on the outside of the vacuum furnace 1. The waste heat recovery component also includes a water inlet connecting pipe 11, which is fixedly connected to one end of the heat absorption tube 4. The end of the heat absorption tube 4 away from the water inlet connecting pipe 11 is fixedly connected to a water outlet connecting pipe 10.

[0026] When the material is heated, cold water enters through the water inlet connecting pipe 11 and then enters the interior of the heat absorbing tube 4. The heat absorbing tube 4 is spirally fitted with the outer wall of the vacuum furnace 1, so that the waste heat can be better absorbed. Finally, the absorbed hot water is discharged through the water outlet connecting pipe 10 for subsequent hot water utilization.

[0027] The utility model provides a vacuum air quenching furnace for metal heat treatment with a waste heat recovery function. The specific working principle is as follows: first, the material to be processed is put into the vacuum furnace 1 through the feed door 2, and then the vacuum pump is used to evacuate the exhaust pipe 3 to extract the air inside the furnace to create a vacuum environment. Once the required vacuum degree is reached, the metal material in the furnace begins to heat up. The heating is usually achieved by a resistance heater or an induction heater to make the metal material reach the required temperature. These are all existing technologies and will not be described in detail. Then, when the material is processed, the high temperature generated during heating can be absorbed by the waste heat recovery component and then recycled. Then, after the processing is completed, the exhaust gas is drawn from the inside of the vacuum furnace 1 through the exhaust pipe 5 into the inside of the filter box 8 through the built-in air pump in the intake pipe 6, and then the impurities in the exhaust gas are adsorbed by the activated carbon plate 12, and then discharged through the chimney 7. Then, when the activated carbon plate 12 is replaced, the lever 2 is toggled 1 drives the slider 16 to move and drives the block 20 to disengage from the inside of the slot 14, thereby releasing the fixation of the mounting plate 13, and then the mounting plate 13 is pulled out to replace the activated carbon plate 12. Then, when installing the activated carbon plate 12, it is inserted into the inside of the filter box 8 through one side of the mounting plate 13, and then one side of the mounting plate 13 conflicts with the inclined surface of the block 20, thereby driving the block 20 to move and driving the slider 16 to compress the spring 17. Then, when the slot 14 moves to the bottom of the block 20, the slider 16 is driven to move under the reaction force of the spring 17 and drives the block 20 to automatically enter the inside of the slot 14 to complete the installation of the activated carbon plate 12. Finally, when the material is heated, it enters the cold water through the water inlet connecting pipe 11, and then enters the inside of the heat absorption pipe 4. The heat absorption pipe 4 is spirally fitted with the outer wall of the vacuum furnace 1, so that the residual heat can be better absorbed. Finally, the absorbed hot water is discharged through the water outlet connecting pipe 10, so as to facilitate the subsequent hot water utilization.

[0028] Although the 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 vacuum gas quenching furnace for metal heat treatment with waste heat recovery function, comprising a vacuum furnace (1), characterized in that: The top of the vacuum furnace (1) is fixedly connected to an exhaust pipe (3), the top of the vacuum furnace (1) is fixedly connected to an exhaust pipe (5), a filter box (8) is arranged on one side of the vacuum furnace (1), a mounting plate (13) is slidably connected inside the filter box (8), an activated carbon plate (12) is arranged inside the mounting plate (13), a fixing block (15) is fixedly connected to one side of the filter box (8), a slide groove (18) is provided inside the fixing block (15), a limit position component is arranged inside the slide groove (18), a chimney (7) is fixedly connected to the top of the filter box (8), an air inlet pipe (6) is fixedly connected between the top of the exhaust pipe (5) and one side of the filter box (8), a waste heat recovery component is arranged on the outside of the vacuum furnace (1), a feed door (2) is rotatably connected to one side of the vacuum furnace (1), and a discharge door (9) is rotatably connected to the side of the vacuum furnace (1) away from the feed door (2).

2. The vacuum gas quenching furnace for metal heat treatment with waste heat recovery function according to claim 1, characterized in that: The limiting assembly comprises a slider (16), the slider (16) is slidably connected inside a slide groove (18), and a spring (17) is fixedly connected between the top of the slider (16) and the inner wall of the slide groove (18).

3. The vacuum gas quenching furnace for metal heat treatment with waste heat recovery function according to claim 2, characterized in that: The limit assembly also includes a clamping block (20), the clamping block (20) is slidably connected to the inside of the fixed block (15), the top of the clamping block (20) is fixedly connected to the bottom of the sliding block (16), and the top of the mounting plate (13) is provided with a clamping groove (14).

4. The vacuum gas quenching furnace for metal heat treatment with waste heat recovery function according to claim 2, characterized in that: A limiting groove (19) is formed through one side of the fixed block (15), a lever (21) is slidably connected inside the limiting groove (19), and one end of the lever (21) is fixedly connected to one side of the sliding block (16).

5. The vacuum gas quenching furnace for metal heat treatment with waste heat recovery function according to claim 3, characterized in that: One end of the clamping block (20) is provided with an inclined surface.

6. The vacuum gas quenching furnace for metal heat treatment with waste heat recovery function according to claim 1, characterized in that: The waste heat recovery component comprises a heat absorption pipe (4), and the heat absorption pipe (4) is arranged in a spiral shape on the outside of the vacuum furnace (1).

7. The vacuum gas quenching furnace for metal heat treatment with waste heat recovery function according to claim 6, characterized in that: The waste heat recovery component also includes a water inlet connecting pipe (11), wherein the water inlet connecting pipe (11) is fixedly connected to one end of the heat absorption pipe (4), and an end of the heat absorption pipe (4) away from the water inlet connecting pipe (11) is fixedly connected to a water outlet connecting pipe (10).

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