Hot air circulation recovery device for glass annealing kiln

Abstract

The utility model relates to the technical field of glass annealing kilns, in particular to a hot air circulation recovery device of a glass annealing kiln, which comprises a glass annealing kiln body, a box door is hinged to the front side of the glass annealing kiln body, the middle of the box door is fixedly mounted, a perforated plate is fixedly mounted inside the glass annealing kiln body, and the perforated plate is fixedly mounted on the glass annealing kiln body. And three mounting cylinders are rotationally mounted on the surface of the porous plate at equal intervals along the circumference. According to the hot air circulation recovery device for the glass annealing kiln, the glass annealing kiln body, the transmission assembly, the hot air circulation assembly and other parts are arranged, and the heat radiation quantity borne by the center and the edge of the cavity of the glass annealing kiln body is inconsistent; when the glass product placed on the surface of the mounting cylinder is annealed and processed by the glass annealing kiln body, the annealed glass product slowly rotates, so that the surface of the glass product can be uniformly heated, and the situation that the temperature of a glass sample is inconsistent due to the fact that the glass product is in a static state is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of glass annealing furnaces, in particular to a hot air circulation recovery device for a glass annealing furnace. Background Art

[0002] Annealing is a heat treatment process that refers to slowly heating metal or non-metal to a certain temperature, maintaining it for a sufficient time, and then cooling it at an appropriate rate. To be precise, annealing is a heat treatment process for materials, including metal materials and non-metallic materials, with the purpose of eliminating residual stress, stabilizing dimensions, reducing deformation and cracking tendencies; refining grains, adjusting structure, eliminating structural defects, etc. In the production of various glass products, such as glass bottles and glass cups, the annealing quality of glass plays a vital role in product quality and operating costs. Accurate control of glass annealing quality is the basic guarantee. Whether the glass annealing system is accurate can directly affect the quality of the product and is of great significance to the subsequent processing of glass.

[0003] The announcement number CN220745702U is a patent for an annealing furnace for making glass products, including a furnace body, the right inner wall of the furnace body is rotatably connected to a threaded screw, the right side of the threaded screw extends out of the inner wall of the furnace body and is fixedly connected to the output end of the drive motor. Through the mutual cooperation of the drive motor, the threaded screw, the moving block and the placement plate, the glass products can automatically enter the interior of the furnace body, and there is no need for staff to put the glass products in and out of the furnace body. At the same time, a fan and an air outlet pipe are provided. The output end of the air outlet pipe is not directly facing the glass products. The fan cooperates with the air outlet pipe and the air vents to accelerate the flow of air inside the furnace body, forming convection wind, accelerating the air circulation inside the furnace body, and allowing the temperature of the surface of the glass products to be exchanged with the air while avoiding breakage caused by excessive temperature difference.

[0004] Annealing is a heat treatment process that improves the properties of metal materials through heating, insulation and slow cooling. However, during the insulation process of glass products, the annealing device of this patent places the glass sample statically on the placement plate. When the sample is heated, the amount of heat radiation received by the sample at the center of the chamber and the sample at the edge of the chamber is inconsistent, resulting in inconsistent sample temperatures, poor annealing effect and low efficiency.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of the utility model is to provide a glass annealing furnace hot air circulation recovery device which can effectively solve the above technical problems.

[0007] In order to achieve the purpose of the present utility model, the following technical scheme is adopted: a hot air circulation recovery device for a glass annealing furnace, comprising: a glass annealing furnace body, a box door hingedly installed on the front side of the glass annealing furnace body, and the middle part of the box door is fixedly installed, a porous plate is fixedly installed inside the glass annealing furnace body, and three mounting cylinders are mounted on the surface of the porous plate for rotating equidistantly along the circumference, a metal mesh is fixedly installed on the bottom of the mounting cylinder, a transmission assembly is arranged between the outer walls of the three mounting cylinders and the surface of the porous plate, a hot air circulation assembly is arranged between the top of the glass annealing furnace body and the bottom of the glass annealing furnace body, and an exhaust assembly is arranged on one side of the top of the glass annealing furnace body.

[0008] Furthermore, a bearing is installed at the position where the mounting cylinder passes through the porous plate, and the inner ring of the bearing is fixed to the outer wall of the mounting cylinder, and the outer ring of the bearing is fixed to the opening of the porous plate.

[0009] Furthermore, the transmission assembly includes: a servo motor, which is fixedly installed in the middle position of the bottom of the porous plate, and the output end of the servo motor passes through the top of the porous plate. The output end of the servo motor is fixedly connected to a first gear, and three second gears are provided. The three second gears are respectively fixedly installed on the surfaces of the upper ends of adjacent mounting cylinders, and one side of the second gear is engaged with one side of the first gear.

[0010] Furthermore, a motor heat insulation box is mounted on the surface of the servo motor, and the top of the motor heat insulation box is fixedly connected to the bottom of the porous plate.

[0011] Furthermore, the hot air circulation component includes: an exhaust fan, which is fixedly installed on one side of the outer wall of the glass annealing furnace body, an air inlet pipe is fixedly installed on the air inlet end of the exhaust fan, and one end of the air inlet pipe extends to the upper end of the interior of the glass annealing furnace body, a filter is fixedly installed at the end of one end of the air inlet pipe, and an air outlet pipe is fixedly installed on the air outlet end of the exhaust fan, and one end of the air outlet pipe is fixedly installed in the middle position of the bottom of the glass annealing furnace body.

[0012] Furthermore, the exhaust assembly includes: an exhaust pipe, which is fixedly installed on one side of the top of the glass annealing furnace body, an exhaust port is opened on one side of the upper end of the exhaust pipe, a positioning ring is fixedly installed in the middle position inside the exhaust pipe, a movable rod is movably provided through the middle position of the top of the exhaust pipe, and a conical block is fixedly installed at the bottom of the movable rod, the surface of the conical block is placed on the inner wall of the positioning ring, the surface of the movable rod is covered with a reset spring, and one end of the reset spring is fixedly connected to the top wall of the exhaust pipe, and the other end of the reset spring is fixedly connected to the surface of the conical block.

[0013] Furthermore, the inner wall of the positioning ring is configured as a tapered structure that is larger at the top and smaller at the bottom, and the inner wall of the positioning ring matches the surface of the tapered block.

[0014] Compared with the prior art, the present invention has the following beneficial effects: the present invention is a glass annealing furnace hot air circulation recovery device. Through the arrangement of the glass annealing furnace body, the transmission assembly and the hot air circulation assembly and other components, since the heat radiation amount received by the center of the chamber of the glass annealing furnace body and the edge of the chamber are inconsistent, through the arrangement of the transmission assembly, when the glass annealing furnace body anneals the glass products placed on the surface of the mounting cylinder, the annealed glass products are slowly rotated, so that the surface of the glass products can be heated evenly, and the glass products are prevented from being in a static state, thereby causing the temperature of the glass sample to be inconsistent, affecting the annealing effect. The invention has the advantages of high heat dissipation, low calorific value and high efficiency, and can realize the recycling of hot air through the arrangement of hot air circulation components, and at the same time the side walls of the glass products are evenly heated, the hot air can better act on the bottom of the glass products through the metal mesh, thereby improving the uniformity of heating around the glass products and further improving the annealing quality; and when the internal air pressure of the glass annealing furnace body is too high, the exhaust component is arranged, and the air pressure squeezes the conical block to push the conical block upward, so that a gap is formed between the conical block and the inner wall of the positioning ring, and the gas is discharged outward from the exhaust port at the upper end of the exhaust pipe through the gap, thereby avoiding the safety hazard caused by excessive air pressure in the glass annealing furnace body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0016] Figure 1 This is a schematic diagram of the main view of the utility model;

[0017] Figure 2 This is a schematic diagram of a main cross-sectional view of a local structure of a glass annealing furnace body of the present invention;

[0018] Figure 3 This is a schematic diagram of a main cross-sectional view of the present utility model;

[0019] Figure 4 For the utility model Figure 3 A schematic diagram of the structure at center A;

[0020] Figure 5 This is a schematic front and cross-sectional view of the local structure of the mounting cylinder, metal mesh and second gear of the present invention.

[0021] In the figure: 1. Glass annealing furnace body; 101. Box door; 2. Perforated plate; 3. Mounting tube; 301. Metal mesh; 4. Transmission assembly; 401. Servo motor; 4011. Motor insulation box; 402. First gear; 403. Second gear; 5. Hot air circulation assembly; 501. Exhaust fan; 502. Air inlet pipe; 5021. Filter; 503. Air outlet pipe; 6. Exhaust assembly; 601. Exhaust tube; 6011. Exhaust port; 602. Positioning ring; 603. Movable rod; 604. Conical block; 605. Return spring. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments.

[0023] In the description of the present invention, it should be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the scope of protection of the present invention. When a mechanism is referred to as being "fixed to" another mechanism, it may be directly on the other mechanism or there may also be a centered mechanism. When a mechanism is considered to be "connected to" another mechanism, it may be directly connected to the other mechanism or there may be a centered mechanism at the same time. When a mechanism is considered to be "set on" another mechanism, it may be directly set on the other mechanism or there may be a centered mechanism at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0024] like Figures 1 to 5As shown, the utility model is a hot air circulation recovery device for a glass annealing furnace, comprising: a glass annealing furnace body 1, a box door 101 hingedly installed on the front side of the glass annealing furnace body 1, and a fixed installation 1011 on the middle part of the box door 101, through which the staff can observe the annealing condition of the glass products inside the glass annealing furnace body 1, a porous plate 2 is fixedly installed inside the glass annealing furnace body 1, and three mounting cylinders 3 are mounted on the surface of the porous plate 2 in a circumferentially equidistant manner, a metal mesh 301 is fixedly installed on the bottom of the mounting cylinder 3, and a transmission component 4 is arranged between the outer walls of the three mounting cylinders 3 and the surface of the porous plate 2. Since the amount of heat radiation received by the center of the chamber of the glass annealing furnace body 1 and the edge of the chamber are inconsistent, the transmission component 4, when the glass annealing furnace body 1 anneals the glass products placed on the surface of the mounting tube 3, the surface of the glass products can be evenly heated, avoiding the glass products being in a static state, which leads to inconsistent temperature of the glass samples and affects the annealing effect. A hot air circulation component 5 is provided between the top and the bottom of the glass annealing furnace body 1. Through the provision of the hot air circulation component 5, the hot air is circulated. While the side walls of the glass products are evenly heated, the hot air can pass through the metal mesh 301 to better act on the bottom of the glass products, thereby improving the uniformity of heating around the glass products and further improving the annealing quality. An exhaust component 6 is provided on one side of the top of the glass annealing furnace body 1. Through the provision of the exhaust component 6, when the air pressure inside the glass annealing furnace body 1 is too high, the pressure can be automatically discharged, thereby avoiding the safety hazard caused by excessive air pressure inside the glass annealing furnace body 1.

[0025] The position where the mounting cylinder 3 passes through the porous plate 2 is provided with a bearing, and the inner ring of the bearing is fixed to the outer wall of the mounting cylinder 3, and the outer ring of the bearing is fixed to the opening of the porous plate 2. The stability of the rotation of the mounting cylinder 3 is improved by the bearing arrangement.

[0026] The transmission assembly 4 includes: a servo motor 401, which is fixedly installed in the middle position of the bottom of the porous plate 2, and the output end of the servo motor 401 extends to the top of the porous plate 2. The output end of the servo motor 401 is fixedly connected to the first gear 402, and there are three second gears 403. The three second gears 403 are respectively fixedly installed on the surface of the upper end of the adjacent mounting cylinder 3, and one side of the second gear 403 is engaged with one side of the first gear 402. After the glass products to be annealed are placed on the surface of the metal mesh 301 inside the three mounting tubes 3 and the box door 101 is closed, the servo motor 401 is started, and the output end of the servo motor 401 drives the first gear 402 to rotate, so that the first gear 402 is respectively engaged with the second gears 403 on the upper end surfaces of the three mounting tubes 3, so that the three mounting tubes 3 rotate slowly. When the glass annealing furnace body 1 anneals the glass products placed on the surfaces of the mounting tubes 3, the surfaces of the glass products can be heated evenly, avoiding the glass products being in a static state, resulting in inconsistent heat radiation amounts received by the center and edge of the chamber, thereby causing inconsistent temperatures of the glass samples and affecting the annealing effect.

[0027] The surface of the servo motor 401 is covered with a motor heat insulation box 4011, and the top of the motor heat insulation box 4011 is fixedly connected to the bottom of the porous plate 2. Through the setting of the motor heat insulation box 4011, the temperature in the glass annealing furnace can be blocked, so that the servo motor 401 can run stably.

[0028] The hot air circulation component 5 includes: an exhaust fan 501, which is fixedly installed on one side of the outer wall of the glass annealing furnace body 1, an air inlet pipe 502 is fixedly installed at the air inlet end of the exhaust fan 501, and one end of the air inlet pipe 502 extends to the upper end of the interior of the glass annealing furnace body 1, a filter 5021 is fixedly installed at one end of the air inlet pipe 502, and an air outlet pipe 503 is fixedly installed at the air outlet end of the exhaust fan 501, and one end of the air outlet pipe 503 is fixedly installed in the middle position of the bottom of the glass annealing furnace body 1. When the glass annealing furnace body 1 is annealing the surface of the glass product inside, the exhaust fan 501 is started, and the air inlet pipe 502 at the air inlet end of the exhaust fan 501 extracts heat from the inside of the glass annealing furnace body 1. The hot air is discharged to the bottom of the glass annealing furnace body 1 through the air outlet pipe 503 at the air outlet end of the exhaust fan 501, so that the hot air can pass through the metal mesh 301 to better act on the bottom of the glass product, thereby improving the uniformity of heating around the glass product and further improving the annealing quality.

[0029] The exhaust assembly 6 includes: an exhaust pipe 601, which is fixedly installed on one side of the top of the glass annealing furnace body 1, and an exhaust port 6011 is opened on one side of the upper end of the exhaust pipe 601. A positioning ring 602 is fixedly installed in the middle position inside the exhaust pipe 601, and a movable rod 603 is movably provided through the middle position of the top of the exhaust pipe 601, and a conical block 604 is fixedly installed at the bottom of the movable rod 603. The surface of the conical block 604 is placed on the inner wall of the positioning ring 602, and the surface of the movable rod 603 is covered with a return spring 605, and one end of the return spring 605 is fixedly connected to the top wall of the exhaust pipe 601, and the other end of the return spring 605 is fixedly connected to the surface of the conical block 604. When the internal air pressure of the glass annealing furnace body 1 is too high, the air pressure squeezes the conical block 604 and pushes the conical block 604 upward, so that a gap is formed between the conical block 604 and the inner wall of the positioning ring 602. The gas is discharged outward from the exhaust port 6011 at the upper end of the exhaust pipe 601 through the gap, thereby avoiding the safety hazard caused by excessive air pressure in the glass annealing furnace body 1.

[0030] The inner wall of the positioning ring 602 is configured as a tapered structure that is larger at the top and smaller at the bottom. The inner wall of the positioning ring 602 matches the surface of the tapered block 604. Since the tapered structure of the inner wall of the positioning ring 602 matches the surface of the tapered block 604, the sealing effect between the positioning ring 602 and the tapered block 604 is improved when the air pressure inside the glass annealing furnace body 1 is normal.

[0031] Working principle: When the power is turned on, during the annealing process of the glass products, the glass products to be annealed are placed on the surface of the metal mesh 301 inside the three mounting tubes 3. After closing the box door 101, the servo motor 401 is started, and the output end of the servo motor 401 drives the first gear 402 to rotate, so that the first gear 402 is respectively engaged with the second gear 403 on the upper end surface of the three mounting tubes 3, so that the three mounting tubes 3 rotate slowly. When the glass annealing furnace body 1 anneals the glass products placed on the surface of the mounting tubes 3, the surface of the glass products can be evenly heated, and when the glass annealing furnace body 1 anneals the surface of the glass products inside, The exhaust fan 501 is started, and the heat inside the glass annealing furnace body 1 is extracted through the air inlet pipe 502 at the air inlet end of the exhaust fan 501, and the hot air is discharged to the bottom of the glass annealing furnace body 1 through the air outlet pipe 503 at the air outlet end of the exhaust fan 501, so that the hot air can pass through the metal mesh 301 to better act on the bottom of the glass product, thereby improving the uniformity of heating around the glass product. When the internal air pressure of the glass annealing furnace body 1 is too high, the air pressure squeezes the conical block 604, pushing the conical block 604 upward, so that a gap is formed between the conical block 604 and the inner wall of the positioning ring 602, and the gas is discharged outward from the exhaust port 6011 at the upper end of the exhaust pipe 601 through the gap.

[0032] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0033] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

Claims

1. A hot air circulation recovery device for a glass annealing furnace, characterized in that: include: A glass annealing furnace body, wherein a door is hingedly installed on the front side of the glass annealing furnace body, and the middle part of the door is fixedly installed; a porous plate is fixedly installed inside the glass annealing furnace body, and three mounting cylinders are equidistantly mounted on the surface of the porous plate along the circumference; a metal mesh is fixedly installed on the bottom of the mounting cylinder; a transmission assembly is arranged between the outer walls of the three mounting cylinders and the surface of the porous plate; a hot air circulation assembly is arranged between the top of the glass annealing furnace body and the bottom of the glass annealing furnace body; and an exhaust assembly is arranged on one side of the top of the glass annealing furnace body.

2. A glass annealing furnace hot air circulation recovery device according to claim 1, characterized in that: A bearing is installed at the position where the installation cylinder passes through the porous plate, and the inner ring of the bearing is fixed on the outer wall of the installation cylinder, and the outer ring of the bearing is fixed on the opening of the porous plate.

3. The hot air circulation recovery device for a glass annealing furnace according to claim 1, characterized in that: The transmission assembly includes: a servo motor, which is fixedly installed in the middle position of the bottom of the porous plate. The output end of the servo motor extends to the top of the porous plate. The output end of the servo motor is fixedly connected to a first gear. Three second gears are provided. The three second gears are respectively fixedly installed on the surface of the upper end of the adjacent mounting cylinder, and one side of the second gear is engaged with one side of the first gear.

4. A hot air circulation recovery device for a glass annealing furnace according to claim 3, characterized in that: The surface of the servo motor is sheathed with a motor heat insulation box, and the top of the motor heat insulation box is fixedly connected to the bottom of the porous plate.

5. The hot air circulation recovery device for a glass annealing furnace according to claim 1, characterized in that: The hot air circulation component includes: an exhaust fan, which is fixedly installed on one side of the outer wall of the glass annealing furnace body, an air inlet pipe is fixedly installed on the air inlet end of the exhaust fan, and one end of the air inlet pipe extends to the upper end of the interior of the glass annealing furnace body, a filter is fixedly installed at the end of one end of the air inlet pipe, and an air outlet pipe is fixedly installed on the air outlet end of the exhaust fan, and one end of the air outlet pipe is fixedly installed in the middle position of the bottom of the glass annealing furnace body.

6. The hot air circulation recovery device for a glass annealing furnace according to claim 1, characterized in that: The exhaust assembly includes: an exhaust pipe, which is fixedly installed on one side of the top of the glass annealing furnace body, an exhaust port is opened on one side of the upper end of the exhaust pipe, a positioning ring is fixedly installed in the middle position inside the exhaust pipe, a movable rod is movably provided through the middle position of the top of the exhaust pipe, and a conical block is fixedly installed on the bottom of the movable rod, the surface of the conical block is placed on the inner wall of the positioning ring, the surface of the movable rod is covered with a reset spring, and one end of the reset spring is fixedly connected to the top wall of the exhaust pipe, and the other end of the reset spring is fixedly connected to the surface of the conical block.

7. The hot air circulation recovery device for a glass annealing furnace according to claim 6, characterized in that: The inner wall of the positioning ring is configured as a tapered structure with a larger upper portion and a smaller lower portion, and the inner wall of the positioning ring matches the surface of the tapered block.

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