A high-contact energy-saving vacuum furnace with waste heat utilization function

Abstract

The present invention discloses a high-contact energy-saving vacuum furnace with waste heat utilization function, wherein the furnace body is fixed on the working ground, and a heating element is installed on the inner wall of the furnace body; an upper water tank is fixed on the top of the furnace body, and a condenser is installed on the top of the upper water tank; the furnace body comprises: a mounting table, fixed on the bottom of the inner wall of the furnace body, and a placement frame is arranged in the furnace body; a lower water tank is fixed on the top of the mounting plate, and the top of the lower water tank is connected with the upper water tank through an air guide frame; a guide shaft is installed through the mounting plate and the lower water tank, and a second blade is installed on the top of the guide shaft; a main gear roller is connected to the left and right sides of the furnace body by a motor-driven embedded shaft, and a sealing plate is arranged on one side of the main gear roller, and the sealing plate is located in a movable groove. The high-contact energy-saving vacuum furnace with waste heat utilization function utilizes waste heat to realize water evaporation, stirs materials, realizes uniform heating of materials, and realizes the function of rapid heat dissipation.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum furnaces, and in particular to a high-contact energy-saving vacuum furnace with a waste heat utilization function. Background Art

[0002] A vacuum furnace is a device that heats in a vacuum environment. It can completely eliminate oxidation and decarburization on the surface of the workpiece during the heating process, and can obtain a clean surface without a metamorphic layer. It is widely used in ceramic sintering, vacuum smelting, electric vacuum parts degassing, annealing, brazing of metal parts, and ceramic and metal sealing. However, the existing vacuum furnace has the following problems when in use:

[0003] When using a vacuum furnace, most materials are placed in the furnace and vacuumed and heated. However, the existing vacuum furnaces are not convenient for utilizing waste heat, resulting in heat being only used to heat the materials, causing waste. At the same time, when the materials are heated, they are often piled together, which is not convenient for the materials to be heated evenly, resulting in a long heating time and affecting the material processing efficiency.

[0004] In view of the above problems, it is urgent to carry out innovative design based on the original vacuum furnace. Summary of the invention

[0005] The purpose of the present invention is to provide a high-contact energy-saving vacuum furnace with waste heat utilization function to solve the problem that the existing vacuum furnace proposed in the above background technology is not convenient for utilizing waste heat and is not convenient for uniform heating of materials.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-contact energy-saving vacuum furnace with waste heat utilization function;

[0007] A furnace body is fixed on the working ground, a heating element is installed on the inner wall of the furnace body, and a heat-insulating layer is arranged on the outer wall of the furnace body;

[0008] An upper water tank is fixed to the top of the furnace body, and a condenser is installed on the top of the upper water tank;

[0009] include:

[0010] A mounting platform is fixed to the bottom of the inner wall of the furnace body, a placing frame is provided in the furnace body, and the placing frame is slidably mounted on the top of the mounting platform, and a mounting plate is fixed to the middle of the inner wall of the furnace body;

[0011] The lower water tank is fixed on the top of the mounting plate, the top of the lower water tank is connected with the upper water tank through the air guide frame, and an air outlet is provided on the top of the lower water tank, a return water channel is reserved at the bottom edge of the upper water tank, and the bottom of the return water channel penetrates the furnace body and is opened at the top edge of the lower water tank;

[0012] A guide shaft is installed through the mounting plate and the lower water tank, a second blade is installed on the top of the guide shaft, and the second blade is located in the air guide frame, a mounting seat is provided at the bottom of the guide shaft, and the mounting seat is fixed on the placement frame, and the bottom shaft of the mounting seat is connected to the stirring shaft;

[0013] The main gear roller is connected to the left and right sides of the furnace body by an embedded shaft driven by a motor. A sealing plate is provided on one side of the main gear roller, and a rack is fixed on the outer side of the sealing plate, and an opening is provided below the sealing plate. The sealing plate is located in a movable groove, and the movable groove is provided on the inner wall of the furnace body, and a heat dissipation port is provided through the side of the furnace body.

[0014] Preferably, the air guide frame is designed as a hollow truncated cone structure, and the air guide frame and the guide shaft share a central axis. The air guide frame guides water vapor and compresses space, which can drive the second blade and the guide shaft to rotate.

[0015] Preferably, a guide gear roller is installed through the return water channel, and one end shaft of the guide gear roller is connected to the bottom of the mounting plate, and a first blade is fixed to the top of the guide gear roller, a gear is meshingly installed on the bottom side of the guide gear roller, and the gear shaft is connected to the bottom of the mounting plate, and a fan is fixed to the bottom of the gear, and the first blade is impacted by the water flow to drive the guide gear roller to rotate, thereby driving the gear and the fan to rotate to achieve heat dissipation.

[0016] Preferably, four air outlets are arranged about the central axis of the guide shaft, and three groups of air outlets are arranged on the lower water tank, and the water vapor in the lower water tank impacts the second blade on the guide shaft through the air outlets.

[0017] Preferably, the stirring shafts are evenly spaced on the mounting seat, and the mounting seat is a disassembly and installation structure with a concave-convex fit in the placement frame. The stirring shaft stirs and turns the material in the placement frame, and the disassembly and installation of the mounting seat facilitates the collection of materials.

[0018] Preferably, a fixing groove is provided at the top of the stirring shaft through the mounting seat, and a fixing rod is provided in the fixing groove, and the top of the fixing rod is arranged in the telescopic groove through a spring, and the telescopic groove is provided at the bottom of the guide shaft, and the stirring shaft slides with the mounting seat and can contact the fixing rod.

[0019] Preferably, the fixed rod slides elastically in the telescopic groove through a spring, and the bottom sides of the fixed rod are designed to be inclined, and the fixed rod is an overall rectangular structure. The elastic telescopic nature of the fixed rod facilitates the movement of the stirring shaft, and the guide shaft can drive the stirring shaft to rotate through the fixed rod.

[0020] Preferably, the sealing plate is in an arc-shaped structure and slides in the movable groove, and one end of the sealing plate penetrates and seals in the return water channel, and the opening on the sealing plate corresponds to the position of the heat dissipation port, so that the return water channel and the heat dissipation port can be opened and closed by the sealing plate.

[0021] Preferably, the racks are distributed on the sealing plate at equal angles, and the racks are meshed with the main gear rollers, and the rotation of the main gear rollers can drive the sealing plate to slide.

[0022] Compared with the prior art, the beneficial effects of the present invention are: the high-contact energy-saving vacuum furnace with waste heat utilization function;

[0023] 1. The air outlets are arranged around the guide shaft. When the interior is heated by the heating element, the water in the lower water tank is heated to generate steam and discharged through the air outlet. Then, the truncated cone-shaped air guide frame with a hollow interior guides the water vapor in a centralized manner, so that the second blade on the guide shaft is driven to rotate the guide shaft, and the guide shaft drives the stirring shaft to rotate in the placement frame through the fixed rod and the fixed groove, so as to stir the material, so that the material can be turned over and heated evenly;

[0024] 2. Through the telescopic groove set at the bottom of the guide shaft, the spring inside realizes the elastic sliding of the fixed rod, and the two sides of the bottom of the fixed rod are inclined, so that when the placement frame containing materials is pushed into the furnace body, the fixed rod is forced to expand and contract and finally stuck in the fixed groove, which is convenient for driving the rotation of the stirring shaft and facilitating the pushing and taking out of the placement frame. The concave-convex fit between the mounting plate and the placement frame facilitates the taking out and collection of materials in the placement frame;

[0025] 3. The arc-shaped sealing plate is arranged in the movable groove. The motor drives the main gear roller to rotate, which can drive the sealing plate to rotate, so that the sealing plate can close and open the return water channel and the heat dissipation port, which is convenient for internal sealing and heat dissipation. At the same time, it is convenient for the water condensed in the upper water tank to flow back to the lower water tank through the return water channel, so as to realize the recycling of water;

[0026] 4. Through the guide gear roller arranged in the return water channel, the first blade on the top is impacted by the water flow to drive the guide gear roller to rotate, so that the guide gear drives the gear meshing with it to rotate, and then drives the fan to rotate, and cooperates with the opening of the heat dissipation port to achieve internal active heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the front cross-section structure of the present invention;

[0028] Figure 2 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0029] Figure 3 It is a schematic diagram of the three-dimensional structure of the fixing rod of the present invention;

[0030] Figure 4 This is a schematic diagram of the top view of the mounting base of the present invention;

[0031] Figure 5This is a schematic diagram of the top view of the lower water tank of the present invention;

[0032] Figure 6 This is a schematic diagram of the three-dimensional structure of the air guide frame of the present invention;

[0033] Figure 7 It is a schematic diagram of the side structure of the sealing plate of the present invention.

[0034] In the figure: 1. furnace body; 11. heating element; 12. insulation layer; 13. mounting table; 14. placement frame; 15. mounting plate; 2. lower water tank; 21. air guide frame; 22. upper water tank; 23. condenser; 24. return water channel; 241. guide roller; 242. first blade; 243. gear; 244. fan; 25. air outlet; 3. guide shaft; 31. second blade; 32. mounting seat; 33. stirring shaft; 331. fixed groove; 332. fixed rod; 333. spring; 334. telescopic groove; 4. main roller; 41. sealing plate; 42. rack; 43. opening; 44. movable groove; 45. heat dissipation port. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-7 The present invention provides a technical solution: a high-contact energy-saving vacuum furnace with waste heat utilization function, a furnace body 1, a heating element 11, a heat-insulating layer 12, a mounting platform 13, a placement frame 14, a mounting plate 15, a lower water tank 2, an air guide frame 21, an upper water tank 22, a condenser 23, a water return channel 24, a guide roller 241, a first blade 242, a gear 243, a fan 244, an air outlet 25, a guide shaft 3, a second blade 31, a mounting seat 32, a stirring shaft 33, a fixed groove 331, a fixed rod 332, a spring 333, a telescopic groove 334, a main tooth roller 4, a sealing plate 41, a rack 42, an opening 43, a movable groove 44 and a heat dissipation port 45;

[0037] A furnace body 1 is fixed on the working ground, a heating element 11 is installed on the inner wall of the furnace body 1, and a heat-insulating layer 12 is provided on the outer wall of the furnace body 1;

[0038] An upper water tank 22 is fixed to the top of the furnace body 1, and a condenser 23 is installed on the top of the upper water tank 22;

[0039] include:

[0040] A mounting platform 13 is fixed to the bottom of the inner wall of the furnace body 1. A placement frame 14 is provided in the furnace body 1, and the placement frame 14 is slidably mounted on the top of the mounting platform 13. A mounting plate 15 is fixed to the middle of the inner wall of the furnace body 1.

[0041] The lower water tank 2 is fixed to the top of the mounting plate 15, the top of the lower water tank 2 is connected with the upper water tank 22 through the air guide frame 21, and an air outlet 25 is provided on the top of the lower water tank 2, a return water channel 24 is reserved at the bottom edge of the upper water tank 22, and the bottom of the return water channel 24 penetrates the furnace body 1 and is opened at the top edge of the lower water tank 2;

[0042] The guide shaft 3 is installed through the mounting plate 15 and the lower water tank 2. A second blade 31 is installed on the top of the guide shaft 3, and the second blade 31 is located in the air guide frame 21. A mounting seat 32 is provided at the bottom of the guide shaft 3, and the mounting seat 32 is fixed on the placement frame 14, and the bottom axis of the mounting seat 32 is connected to a stirring shaft 33.

[0043] The main gear roller 4 is connected to the left and right sides of the furnace body 1 by an embedded shaft driven by a motor. A sealing plate 41 is provided on one side of the main gear roller 4, and a rack 42 is fixed on the outer side of the sealing plate 41, and an opening 43 is opened below the sealing plate 41. The sealing plate 41 is located in a movable groove 44, and the movable groove 44 is opened on the inner wall of the furnace body 1, and a heat dissipation port 45 is opened through the side of the furnace body 1.

[0044] The air guide frame 21 is designed in a hollow truncated cone structure, and the air guide frame 21 and the guide shaft 3 share a central axis. Four air outlets 25 are provided about the central axis of the guide shaft 3, and three groups of air outlets 25 are provided on the lower water tank 2.

[0045] like Figure 1 and Figure 5-6 When heated by the heating element 11, the water in the lower water tank 2 is heated to generate water vapor, and the water vapor can enter the air guide frame 21 through the air outlet 25, and is guided and compressed by the space of the air guide frame 21, so that the water vapor can drive the second blade 31 and the guide shaft 3 to rotate;

[0046] A guide gear roller 241 is installed in the water return channel 24, and one end of the guide gear roller 241 is axially connected to the bottom of the mounting plate 15, and a first blade 242 is fixed to the top of the guide gear roller 241, and a gear 243 is meshed and installed on the bottom side of the guide gear roller 241, and the gear 243 is axially connected to the bottom of the mounting plate 15, and a fan 244 is fixed to the bottom of the gear 243;

[0047] like Figure 1In the process, the water vapor in the air guide frame 21 enters the upper water tank 22, and is condensed by the condenser 23 and stored in the upper water tank 22. The water in the upper water tank 22 enters the lower water tank 2 through the return channel 24 to realize water recycling. At the same time, the water impacts the first blade 242 to drive the guide gear roller 241 to rotate. The guide gear roller 241 is meshed with the gear 243, which can drive the gear 243 and the fan 244 to rotate to achieve heat dissipation.

[0048] The stirring shafts 33 are evenly spaced on the mounting seat 32, and the mounting seat 32 is a disassembly and installation structure with concave and convex matching in the placement frame 14. The top of the stirring shaft 33 passes through the mounting seat 32 to open a fixing groove 331, and a fixing rod 332 is arranged in the fixing groove 331, and the top of the fixing rod 332 is arranged in the telescopic groove 334 through a spring 333, and the telescopic groove 334 is opened at the bottom of the guide shaft 3, and the fixing rod 332 elastically slides in the telescopic groove 334 through the spring 333, and the bottom two sides of the fixing rod 332 are designed to be inclined, and the fixing rod 332 is a rectangular structure as a whole;

[0049] like Figure 1-4 In the process, when the sealed door on the outside of the furnace body 1 is opened and the placement frame 14 is pushed onto the mounting table 13 for taking and placing, the top of the stirring shaft 33 contacts the inclined surface of the fixing rod 332, so that the fixing rod 332 is forced to slide into the telescopic groove 334, and with the use of the spring 333, the fixing rod 332 is finally stuck in the fixing groove 331, so that when the guide shaft 3 rotates, the stirring shaft 33 can be driven to rotate through the fixing rod 332, so as to stir the material in the placement frame 14 and make it evenly heated. At the same time, the disassembly and installation of the mounting seat 32 on the placement frame 14 can facilitate the removal of the material;

[0050] The sealing plate 41 is an arc-shaped structure that fits and slides in the movable groove 44, and one end of the sealing plate 41 penetrates and seals in the return water channel 24, and the opening 43 on the sealing plate 41 corresponds to the position of the heat dissipation port 45, and the racks 42 are distributed on the sealing plate 41 at equal angles, and the racks 42 and the main gear roller 4 are meshed with each other;

[0051] like Figure 1 and Figure 7 When the main gear roller 4 is driven to rotate by the motor, the main gear roller 4 is meshed with the rack 42, which can drive the sealing plate 41 to slide in the movable groove 44, so that the sealing plate 41 can realize the opening and closing of the return water channel 24 and the heat dissipation port 45, which is convenient for the controllable recycling of water. At the same time, after the heating is completed, the fan 244 rotates to realize heat dissipation.

[0052] Working principle: When using this high-contact energy-saving vacuum furnace with waste heat utilization function, Figure 1-7In the process, the material is first placed in the placing frame 14, and pushed into the furnace body 1 on the mounting table 13, and the interior of the furnace body 1 is vacuumed by an external vacuuming device, and the internal material is heated by the heating element 11 and the insulation layer 12, and the water in the lower water tank 2 is heated to generate water vapor, and the stirring shaft 33 is driven to rotate by the guide shaft 3 to turn the material over so that it is evenly heated;

[0053] Then, after the heating is completed, the motor drives the main gear roller 4 to rotate, driving the sealing plate 41 to slide, opening the return water channel 24 and the heat dissipation port 45, and the water in the upper water tank 22 flows to the lower water tank 2 through the return water channel 24, and drives the guide gear roller 241 to rotate, thereby driving the fan 244 to rotate to achieve heat dissipation.

[0054] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. In the description of the present invention, unless otherwise specified, "multiple" means two or more; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-contact energy-saving vacuum furnace with waste heat utilization function; A furnace body is fixed on the working ground, a heating element is installed on the inner wall of the furnace body, and a heat-insulating layer is arranged on the outer wall of the furnace body; An upper water tank is fixed to the top of the furnace body, and a condenser is installed on the top of the upper water tank; It is characterized by: including: A mounting platform is fixed to the bottom of the inner wall of the furnace body, a placing frame is provided in the furnace body, and the placing frame is slidably mounted on the top of the mounting platform, and a mounting plate is fixed to the middle of the inner wall of the furnace body; The lower water tank is fixed on the top of the mounting plate, the top of the lower water tank is connected with the upper water tank through the air guide frame, and an air outlet is provided on the top of the lower water tank, a return water channel is reserved at the bottom edge of the upper water tank, and the bottom of the return water channel penetrates the furnace body and is opened at the top edge of the lower water tank; A guide shaft is installed through the mounting plate and the lower water tank, a second blade is installed on the top of the guide shaft, and the second blade is located in the air guide frame, a mounting seat is provided at the bottom of the guide shaft, and the mounting seat is fixed on the placement frame, and the bottom shaft of the mounting seat is connected to the stirring shaft; The main gear roller is connected to the left and right sides of the furnace body by an embedded shaft driven by a motor. A sealing plate is provided on one side of the main gear roller, and a rack is fixed on the outside of the sealing plate. An opening is provided below the sealing plate. The sealing plate is located in a movable groove, and the movable groove is provided on the inner wall of the furnace body. A heat dissipation port is provided through the side of the furnace body. The sealing plate is in an arc-shaped structure and slides in the movable groove, and one end of the sealing plate penetrates and seals in the return water channel, and heat dissipation is achieved when the opening on the sealing plate corresponds to the position of the heat dissipation port; The racks are distributed on the sealing plate at equal angles, and the racks are meshed with the main gear rollers.

2. The high-contact energy-saving vacuum furnace with waste heat utilization function according to claim 1, characterized in that: The air guide frame is designed to be a hollow truncated cone structure, and the air guide frame and the guide shaft share a central axis.

3. The high-contact energy-saving vacuum furnace with waste heat utilization function according to claim 1, characterized in that: A guide gear roller is installed through the return water channel, and one end shaft of the guide gear roller is connected to the bottom of the mounting plate, and a first blade is fixed to the top of the guide gear roller, a gear is meshingly installed on the bottom side of the guide gear roller, and the gear shaft is connected to the bottom of the mounting plate, and a fan is fixed to the bottom of the gear.

4. The high-contact energy-saving vacuum furnace with waste heat utilization function according to claim 1, characterized in that: The air outlets are arranged in four numbers about the central axis of the guide shaft, and the air outlets are arranged in three groups on the lower water tank.

5. The high-contact energy-saving vacuum furnace with waste heat utilization function according to claim 1, characterized in that: The stirring shafts are distributed on the mounting seat at equal intervals, and the mounting seat is a disassembly and installation structure with concave and convex matching in the placement frame.

6. The high-contact energy-saving vacuum furnace with waste heat utilization function according to claim 1, characterized in that: The top of the stirring shaft passes through the mounting seat and is provided with a fixing groove, a fixing rod is arranged in the fixing groove, and the top of the fixing rod is arranged in the telescopic groove through a spring, and the telescopic groove is arranged at the bottom of the guide shaft.

7. The high-contact energy-saving vacuum furnace with waste heat utilization function according to claim 6, characterized in that: The fixing rod slides elastically in the telescopic slot through a spring, and the bottom two sides of the fixing rod are designed to be inclined, and the fixing rod is in a rectangular structure as a whole.

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