Drying system for zirconium products
By designing a zirconium product drying system that uses high temperature hot gas for drying of refining furnaces, the problem of high power consumption in existing equipment is solved, and energy conservation and emission reduction and production costs are achieved.
Patent Information
- Application Number
- CN202421439984.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-06-24
AI Technical Summary
Existing zirconium product drying equipment mostly uses heating pipes to heat, which leads to a large amount of electricity consumed during the drying process and increases production costs.
A drying system is designed to dry and heat the zirconium product slices using the high-temperature hot gas generated by the refining furnace. The high-temperature hot gas is quickly transmitted to the drying box through the main pipe and the air pump, and the hot gas is released through the drying tube in the drying box. At the same time, a heat energy recovery device is installed on the side wall of the drying box to recover the heat energy in the exhaust gas.
It effectively reduces dependence on electricity, saves production costs, rationally utilizes the heat generated by the refining furnace, improves energy utilization efficiency, and reduces waste gas emissions, and meets environmental protection requirements.
Smart Images
Figure CN222761313U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of zirconium product production equipment, in particular to a drying system for zirconium products. Background Art
[0002] Zirconium dioxide raw materials are smelted to produce zirconium products, including zirconium crystals, zirconium gemstones, etc. The zirconium crystals are then processed through glue filling, multi-wire cutting, strip cutting, strip coiling, pelletizing, rounding, and finally surface grinding to form products for sale. The zirconium crystal slices produced by multi-wire cutting contain a certain amount of moisture, so they need to be dried during processing to remove the moisture in the slices and improve the quality and stability of the final product. However, existing drying equipment mostly uses heating tubes for heating and drying, and a large amount of electricity is consumed during the drying process, resulting in increased production costs. Utility Model Content
[0003] The utility model aims to provide a drying system for zirconium products, which can effectively utilize the high-temperature hot air generated by the refining furnace in production to dry and heat the slices, reduce the dependence on electric energy, reasonably utilize resources, and save production costs.
[0004] In order to solve the above technical problems, the utility model adopts the following solutions:
[0005] A drying system for zirconium products comprises a refining furnace and a drying box, wherein an air inlet flange is arranged on the top of the drying box, a main pipeline is arranged between the upper end of the air inlet flange and the refining furnace, an exhaust fan is arranged on the main pipeline for conveying high-temperature hot air generated by the refining furnace to the air inlet flange, a drying chamber connected to the air inlet flange is arranged inside the drying box, a bracket is arranged in the drying chamber, two mutually parallel conveyor belts are arranged on the bracket, the conveyor belts convey slices entering the drying box, the lower end of the air inlet flange is connected to the main air pipe, the main air pipe is connected to drying pipes located above and below the conveyor belt, a plurality of air holes for releasing high-temperature hot air and drying the slices are arranged on the drying pipes, and a heat energy recovery device is arranged on the side wall of the drying box.
[0006] Due to the adoption of the above technical scheme, the high-temperature hot air generated by the refining furnace is quickly and effectively transmitted to the drying box through the main pipeline and the vacuum fan, ensuring the supply of heat energy required for drying. In this way, the heat energy required for drying a large number of slices does not need to consume a large amount of electricity, saving production costs, rationally utilizing the heat generated by the refining furnace, rationally utilizing resources, and avoiding waste of resources. The heat energy recovery device arranged on the side wall of the drying box can recover the heat energy in the exhaust gas generated during the drying process, improve energy utilization efficiency, and reduce energy consumption. The use of the heat energy recovery device not only improves energy utilization efficiency, but also helps to reduce exhaust gas emissions, meeting environmental protection requirements. A bracket is provided inside the drying chamber, and two mutually parallel conveyor belts on the bracket can stably and continuously transport the slices to ensure that the material is evenly heated during the drying process.
[0007] Optionally, the main air pipe extends vertically downward to the bottom of the drying box, the drying pipes are distributed at intervals along the length direction of the main air pipe, and the air holes are vertically facing the conveyor belt.
[0008] Optionally, the drying pipes are distributed in a serpentine shape above and below the conveyor belt, and the width of the serpentine drying pipes is not less than the width of the conveyor belt.
[0009] Optionally, a plurality of air holes are provided on the surface of the conveyor belt along its conveying direction, and the air holes are used for high-temperature hot air drying the bottom surface of the slices.
[0010] Optionally, the surface of the conveyor belt is provided with a plurality of protrusions located on the side of the air vents, and the protrusions are used to reduce the contact area between the bottom surface of the slice and the surface of the conveyor belt.
[0011] Optionally, baffles located on both sides of the conveying direction of the conveyor belt are fixed on the bracket, and a plurality of through holes are formed on the baffles.
[0012] Optionally, the two parallel conveyor belts are staggered up and down, and the distance between the left end of the upper conveyor belt and the left side wall of the drying box is greater than the distance between the left end of the lower conveyor belt and the left side wall of the drying box.
[0013] Optionally, two feeding hoppers corresponding to the left ends of the two conveyor belts are provided on the top of the drying box, and buffer parts for buffering the feeding speed are provided at the bottom of the two feeding hoppers.
[0014] Optionally, the buffer member includes a buffer plate, one end of which is hinged to the bottom end of the feed hopper, a torsion spring is provided between the buffer plate and the inner wall of the feed hopper, and an opening is provided between the buffer plate and the feed hopper to facilitate the slices to fall through.
[0015] Optionally, a nitrogen storage tank is provided on the outer wall of the drying box, an outlet of the nitrogen storage tank is provided with a valve, and the valve outlet is provided with an air outlet pipe extending to the interior of the drying box.
[0016] The utility model has the beneficial effects:
[0017] 1. In the utility model, the high-temperature hot air generated by the refining furnace is quickly and effectively transmitted to the drying box through the main pipeline and the vacuum fan, ensuring the supply of heat energy required for drying. In this way, the heat energy required for drying a large number of slices does not need to consume a large amount of electric energy, saving production costs, rationally utilizing the heat generated by the refining furnace, rationally utilizing resources, and avoiding waste of resources. The heat energy recovery device arranged on the side wall of the drying box can recover the heat energy in the exhaust gas generated during the drying process, improve energy utilization efficiency, and reduce energy consumption. The use of the heat energy recovery device not only improves energy utilization efficiency, but also helps to reduce exhaust gas emissions, meeting environmental protection requirements. A bracket is arranged inside the drying chamber, and two mutually parallel conveyor belts on the bracket can stably and continuously transport the slices, ensuring that the material is evenly heated during the drying process. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the structure of the utility model;
[0019] Figure 2 This is a schematic diagram of the structure after the baffle is installed;
[0020] Figure 3 This is a schematic diagram of the distribution structure of the ventilation openings on the conveyor belt;
[0021] Figure 4 This is a top-down structural diagram of the drying tube and conveyor belt.
[0022] Figure numerals: 1-drying box, 2-valve, 3-exhaust pipe, 4-nitrogen storage tank, 5-main pipeline, 6-refining furnace, 7-feeding hopper, 8-exhaust fan, 9-inlet flange, 10-main air pipe, 11-drying pipe, 12-heat energy recovery device, 13-discharge port, 14-bracket, 15-conveyor belt, 16-air hole, 17-buffer plate, 18-torsion spring, 19-air vent, 20-protrusion, 21-baffle, 22-through hole, 23-drying chamber. DETAILED DESCRIPTION
[0023] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.
[0024] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.
[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0026] Example
[0027] A drying system for zirconium products comprises a refining furnace 6 and a drying box 1. An air inlet flange 9 is arranged on the top of the drying box 1. A main pipeline 5 is arranged between the upper end of the air inlet flange 9 and the refining furnace 6. An exhaust fan is arranged on the main pipeline 5 to transport the high-temperature hot air generated by the refining furnace 6 to the air inlet flange 9. A drying chamber 23 connected to the air inlet flange 9 is arranged inside the drying box 1. A bracket 14 is arranged in the drying chamber 23. Two mutually parallel conveyor belts 15 are arranged on the bracket 14. The conveyor belt 15 conveys slices entering the drying box 1. A main air pipe 10 is connected to the lower end of the air inlet flange 9. The main air pipe 10 is connected to a drying pipe 11 located above and below the conveyor belt 15. The drying pipe 11 is provided with a plurality of air holes 16 for releasing high-temperature hot air and drying the slices. A heat energy recovery device 12 is arranged on the side wall of the drying box 1.
[0028] In this embodiment, Figure 1 As shown, the refining furnace 6 is the front-end smelting equipment in the production process of zirconium products. When it is working, it will generate a large amount of high-temperature hot air, which is not utilized. Therefore, in this scheme, the high-temperature hot air generated by the refining furnace 6 is quickly and effectively transmitted to the drying box 1 through the main pipeline 5 and the exhaust fan, and the slices on the conveyor belt 15 are conveyed through the air holes 16 on the drying tube 11, and then the conveyed slices are dried. The refining furnace 6 ensures the supply of heat energy required for drying, so that the heat energy required for drying a large number of slices does not need to consume a large amount of electric energy, saving production costs, and reasonably utilizing the heat generated by the refining furnace 6. Reasonable use of resources avoids waste of resources. The heat recovery device 12 (existing product) arranged on the side wall of the drying box 1 can recover the heat energy in the exhaust gas generated during the drying process, improve energy utilization efficiency, and reduce energy consumption. The use of the heat recovery device 12 not only improves energy utilization efficiency, but also helps to reduce exhaust gas emissions, meeting environmental protection requirements. A bracket 14 is provided inside the drying chamber 23, and two mutually parallel conveyor belts 15 on the bracket 14 can stably and continuously convey slices to ensure that the material is evenly heated during the drying process.
[0029] Furthermore, the main air pipe 10 extends vertically downward to the bottom of the drying box 1 , the drying pipes 11 are distributed at intervals along the length direction of the main air pipe 10 , and the air holes 16 are vertically facing the conveyor belt 15 .
[0030] Specifically, the main air pipe 10 extends vertically downward to the bottom of the drying box 1, and the drying pipes 11 are spaced apart along the length direction of the main air pipe 10. This design ensures that the high-temperature hot air can be evenly distributed in various areas within the drying box 1. At the same time, the air holes 16 are vertically facing the conveyor belt 15. This layout enables the hot air to act directly and effectively on the slices, thereby improving the drying efficiency.
[0031] Furthermore, the drying tubes 11 are distributed in a serpentine shape above and below the conveyor belt 15 , and the width of the serpentine drying tubes 11 is not less than the width of the conveyor belt 15 .
[0032] Specifically, Figure 4 As shown, in order to improve the stability of the drying tube 11, the drying tube 11 can be connected to the top wall of the drying box 1 by a hanging rod. The serpentine drying tube 11 can slow down the speed of the internal high-temperature hot air passing through the conveyor belt 15, which can extend the drying time and improve the drying effect. The drying tubes 11 are distributed above and below the conveyor belt 15, so that the slices on the conveyor belt 15 can be dried simultaneously from the upper and lower relative directions. The serpentine drying tube 11 ensures that the serpentine drying tube 11 has sufficient coverage area above and below the conveyor belt 15 so that the hot air can be evenly distributed on the material. The bending radius and spacing of the drying tube 11 are considered to avoid an overly dense or sparse layout to achieve the best hot air distribution and drying effect. On the serpentine drying tube 11, the layout of the air holes 16 should take into account the uniformity of the hot air flow and the uniformity of the heating of the material. The air holes 16 can be evenly distributed along the length of the drying tube 11, or adjusted according to the distribution of the material on the conveyor belt 15. The size of the air holes 16 can also be adjusted to meet the needs of different drying stages. For example, in the early stage of drying, larger air holes 16 can be used to speed up the drying speed; in the later stage of drying, smaller air holes 16 can be used to avoid over-drying. A temperature sensor can also be set inside the drying box 1 to monitor the temperature inside the drying chamber 23 in real time.
[0033] Furthermore, a plurality of air holes 19 are provided on the surface of the conveyor belt 15 along its conveying direction, and the air holes 19 are used for high-temperature hot air drying the bottom surface of the slices.
[0034] Specifically, Figure 3 As shown, in the drying system, a plurality of air holes 19 are provided on the surface of the conveyor belt 15 along its conveying direction, which allows the high-temperature hot air to directly contact the bottom surface of the slice from bottom to top, thereby enhancing the drying effect on the bottom surface of the material. The layout of the air holes 19 should ensure that the hot air can be evenly distributed to the bottom surface of the material. The air holes 19 can be distributed equidistantly, or they can be locally densely or sparsely arranged according to the shape and size of the material.
[0035] Furthermore, the surface of the conveyor belt 15 is provided with a plurality of protrusions 20 located on the side of the air vents 19 , and the protrusions 20 are used to reduce the contact area between the bottom surface of the slice and the surface of the conveyor belt 15 .
[0036] Specifically, Figure 3As shown, in the drying system, a plurality of protrusions 20 located on the side of the air vent 19 are provided on the surface of the conveyor belt 15. These protrusions 20 can significantly reduce the contact area between the bottom surface of the slice and the surface of the conveyor belt 15, thereby increasing the contact area between the bottom surface of the material and the hot air and improving the drying efficiency. The shape, size and distribution of the protrusions 20 should be optimized according to the shape, size and drying requirements of the slice. Generally, the protrusions 20 can be cylindrical, conical or other suitable shapes, and their height and diameter should be appropriate to ensure that the contact area between the material and the conveyor belt 15 can be effectively reduced without affecting the stability of the conveyor belt 15 and the transmission of the material. The distribution of the protrusions 20 should be uniform to ensure that the material is evenly heated on the conveyor belt 15. The number of protrusions 20 can be increased or decreased in specific areas of the conveyor belt 15 according to the distribution of the material. The air vents 19 should be located on the sides of the protrusions 20 so that hot air can smoothly pass through the air vents 19 and contact the bottom surface of the material. The size and number of the air vents 19 should be reasonably designed according to the drying requirements and the width of the conveyor belt 15. In order to ensure that the hot air can be evenly distributed to the bottom surface of the material, the spacing between the air vents 19 and the protrusions 20 should be appropriate to avoid being too dense or sparse.
[0037] Furthermore, baffles 21 located on both sides of the conveying direction of the conveyor belt 15 are fixed on the bracket 14 , and a plurality of through holes 22 are formed on the baffles 21 .
[0038] Specifically, Figure 2 As shown, in the drying system, baffles 21 located on both sides of the conveying direction of the conveyor belt 15 are fixed on the bracket 14, and a plurality of through holes 22 are provided on the baffle 21. This design not only helps to keep the material stable during the drying process and prevent the material from scattering or shifting during the transmission process, but also reduces the weight of the baffle 21. At the same time, the design of the through holes 22 also allows hot air to circulate, further improving the drying efficiency. The length of the baffle 21 should be sufficient to cover the width of the conveyor belt 15 to ensure that the material will not scatter from both sides during the transmission process. The height of the baffle 21 should be determined according to the size and characteristics of the material, so as to prevent the material from scattering and avoid obstructing the transmission of the material. The baffle 21 should be made of high temperature resistant and corrosion resistant materials to ensure stable operation during the drying process.
[0039] Furthermore, the two parallel conveyor belts 15 are arranged in an up-and-down staggered manner, and the distance between the left end of the upper conveyor belt 15 and the left side wall of the drying box 1 is greater than the distance between the left end of the lower conveyor belt 15 and the left side wall of the drying box 1. Specifically, the left end of the lower conveyor belt 15 is closer to the left side wall of the drying box 1, so that the two conveyor belts 15 form a step-like shape. Since the two conveyor belts 15 are arranged in parallel up and down, the stepped distribution facilitates the slices to fall onto the conveyor belts 15. At the same time, in order to facilitate the output of the slices after drying, a discharge port 13 corresponding to the right end of the conveyor belt 15 is provided on the right side wall of the drying box 1.
[0040] Furthermore, two feeding hoppers 7 corresponding to the left ends of the two conveyor belts 15 are provided on the top of the drying box 1, and buffer parts for buffering the material discharge speed are provided at the bottom of the two feeding hoppers 7.
[0041] Furthermore, the buffer member includes a buffer plate 17, one end of which is hinged to the bottom end of the feeding hopper 7, a torsion spring 18 is provided between the buffer plate 17 and the inner wall of the feeding hopper 7, and an opening is provided between the buffer plate 17 and the feeding hopper 7 to facilitate the slices to fall down.
[0042] Specifically, Figure 1 As shown, in the drying system, two feeding hoppers 7 corresponding to the left end of the conveyor belt 15 are arranged on the top of the drying box 1, and a buffer is installed at the bottom of the feeding hopper 7 to control the material discharge speed. This design can ensure that the material can be evenly and stably distributed on the conveyor belt 15 when it is transmitted to the drying box 1, avoiding material accumulation or blockage. The two feeding hoppers 7 correspond to the left ends of the two conveyor belts 15 respectively, ensuring that the material can directly and accurately fall onto the conveyor belt 15. The size of the feeding hopper 7 should be reasonably designed according to the width of the conveyor belt 15 and the material flow rate to ensure sufficient material supply without overflow or blockage. One end of the buffer plate 17 is hinged to the bottom end of the feeding hopper 7, allowing the buffer plate 17 to swing flexibly when impacted by the material. The buffer plate 17 should be made of wear-resistant, corrosion-resistant and elastic materials, such as stainless steel or polymer plastics, to ensure its stability and reliability in long-term use. The torsion spring 18 is installed between the buffer plate 17 and the inner wall of the feeding hopper 7 to provide a restoring force for the buffer plate 17. The two ends of the torsion spring 18 are respectively connected to the inner wall of the buffer plate 17 and the inner wall of the feeding hopper. The torsion of the torsion spring 18 can be adjusted according to the weight and flow rate of the material to control the swing amplitude and frequency of the buffer plate 17, so as to achieve the purpose of adjusting the material discharge speed. The size of the opening between the buffer plate 17 and the feeding hopper 7 should be moderate, which can ensure that the material can flow down smoothly and avoid the material from rushing out quickly due to the opening being too large. The shape of the opening can be optimized according to the fluidity of the material and the discharge requirements, such as using a long strip or arc-shaped opening to improve the uniformity of material distribution.
[0043] Furthermore, a nitrogen storage tank 4 is provided on the outer wall of the drying box 1, a valve 2 is provided at the outlet of the nitrogen storage tank 4, and an outlet of the valve 2 is provided with an air outlet pipe 3 extending to the interior of the drying box.
[0044] Specifically, Figure 1 As shown, by introducing nitrogen inert gas when drying the slices, on the one hand, the slices can be prevented from reacting with oxygen at high temperature and at the same time the degree of oxidation and gas residue of the slices during the drying process can be reduced; on the other hand, the introduction of nitrogen inert gas can improve the purity and quality of the slices after processing.
[0045] The above is only a preferred embodiment of the utility model and does not limit the utility model in any form. According to the technical essence of the utility model, within the spirit and principles of the utility model, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the utility model.
Claims
1. A drying system for zirconium products, characterized in that: The invention comprises a refining furnace (6) and a drying box (1). The top of the drying box (1) is provided with an air inlet flange (9). A main pipeline (5) is provided between the upper end of the air inlet flange (9) and the refining furnace (6). The main pipeline (5) is provided with an exhaust fan for conveying high-temperature hot air generated by the refining furnace (6) to the air inlet flange (9). The drying box (1) has a drying chamber (23) connected to the air inlet flange (9). A bracket (14) is provided in the drying chamber (23). Two mutually parallel conveyor belts (15) are provided on the bracket (14). The conveyor belts (15) convey slices entering the drying box (1). The lower end of the air inlet flange (9) is connected with a main air pipe (10). The main air pipe (10) is connected with drying pipes (11) located above and below the conveyor belt (15). The drying pipes (11) are provided with a plurality of air holes (16) for releasing high-temperature hot air and drying the slices. The side wall of the drying box (1) is provided with a heat recovery device (12).
2. A drying system for zirconium products according to claim 1, characterized in that: The main air pipe (10) extends vertically downward to the bottom of the drying box (1), the drying pipes (11) are spaced apart along the length direction of the main air pipe (10), and the air holes (16) are vertically oriented toward the conveyor belt (15).
3. A drying system for zirconium products according to claim 2, characterized in that: The drying pipe (11) is distributed in a serpentine shape above and below the conveyor belt (15), and the width of the serpentine drying pipe (11) is not less than the width of the conveyor belt (15).
4. A drying system for zirconium products according to claim 1, characterized in that: The surface of the conveyor belt (15) is provided with a plurality of air holes (19) along its conveying direction, and the air holes (19) are used for drying the bottom surface of the slices with high-temperature hot air.
5. A drying system for zirconium products according to claim 4, characterized in that: The surface of the conveyor belt (15) is provided with a plurality of protrusions (20) located on the side of the air permeable opening (19), and the protrusions (20) are used to reduce the contact area between the bottom surface of the slice and the surface of the conveyor belt (15).
6. A drying system for zirconium products according to claim 1, characterized in that: Baffles (21) located on both sides of the conveying direction of the conveyor belt (15) are fixed on the bracket (14), and a plurality of through holes (22) are formed on the baffles (21).
7. A drying system for zirconium products according to claim 1, characterized in that: The two mutually parallel conveyor belts (15) are arranged in an alternating manner up and down, and the distance between the left end of the upper conveyor belt (15) and the left side wall of the drying box (1) is greater than the distance between the left end of the lower conveyor belt (15) and the left side wall of the drying box (1).
8. A drying system for zirconium products according to claim 1, characterized in that: The top of the drying box (1) is provided with two feeding hoppers (7) corresponding to the left ends of the two conveyor belts (15) respectively, and the bottoms of the two feeding hoppers (7) are provided with buffering parts for buffering the feeding speed.
9. A drying system for zirconium products according to claim 8, characterized in that: The buffer member comprises a buffer plate (17), one end of the buffer plate (17) is hinged to the bottom end of the feeding hopper (7), a torsion spring (18) is provided between the buffer plate (17) and the inner wall of the feeding hopper (7), and an opening is provided between the buffer plate (17) and the feeding hopper (7) for facilitating the leakage of slices.
10. A drying system for zirconium products according to claim 1, characterized in that: A nitrogen storage tank (4) is provided on the outer wall of the drying box (1), a valve (2) is provided at the outlet of the nitrogen storage tank (4), and an air outlet pipe (3) extending to the interior of the drying box is provided at the outlet of the valve (2).