Wood processing drying device with sterilization function
By combining open and closed drying methods, along with hot air and ultraviolet sterilization, the problems of poor drying effect and incomplete sterilization of traditional wood dryers are solved, achieving rapid and efficient wood drying and sterilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINYI TAILAI JUNXIN FURNITURE CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional wood drying machines have poor drying effects, cannot effectively sterilize, and the closed drying process is used for small quantities of wood and takes a long time.
A combination of open and closed drying methods is used. Open drying uses hot air and air convection for pre-drying, while closed drying uses a heat source inside a closed oven for further drying, combined with ultraviolet sterilization tubes for sterilization.
It achieves rapid and effective wood drying and sterilization, reduces drying time, avoids leakage of high-temperature flue gas and heat source, and improves drying efficiency and sterilization effect.
Smart Images
Figure CN224398254U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to a wood processing and drying device with sterilization function, belonging to the field of wood drying technology. Background Technology
[0002] Before processing or shaping, most wood requires drying. However, traditional wood drying machines have poor drying effects and cannot effectively sterilize the wood, which not only affects subsequent processing but also reduces the quality of the wood. To address this, Chinese Patent Publication No. CN109084535A discloses a wood drying machine with sterilization function. This structure can sterilize wood with high-temperature gas, high-temperature steam, and ultraviolet light, effectively drying and sterilizing the wood. Similarly, Chinese Patent Authorization Announcement No. CN216048899U discloses a wood drying device with sterilization function. This structure rotates the wood to make the heating more uniform, thereby increasing the heated area of the wood during the drying process, enhancing the drying effect, and shortening the time required for operators to remove the bottom layer of wood. However, the above structures can only process a small amount of wood and use a closed drying process, resulting in a long drying time. Utility Model Content
[0003] To address the aforementioned issues, this invention proposes a wood processing and drying device with sterilization function, capable of open-type pre-drying of wood followed by closed-type drying, with the heat source for open-type drying provided by a closed drying oven.
[0004] The wood processing and drying device with sterilization function of this utility model includes:
[0005] A guide rail assembly, the guide rail assembly including an outer rail body, and an inner rail body fixed inside the outer rail body;
[0006] An open drying hood is a square hood with a hollow bottom. A row of wheels is fixed on both sides of the bottom of the open drying hood, and the wheels are rolled on the outer rail.
[0007] A closed drying oven includes a drying tunnel fixed to the inner side of an outer rail body. The top of the front section of the drying tunnel is higher than the rear section. A hollow heat-conducting frame plate is embedded in the inner side of the front section of the drying tunnel, forming a spray channel between the heat-conducting frame plate and the inner wall of the front section of the drying tunnel. The heat-conducting frame plate is flush with the inner wall of the rear section of the drying tunnel. A door panel is hinged to the front end of the heat-conducting frame plate. A hydraulic lifting door is provided at the rear end of the drying tunnel. The inner rail body moves through the closed drying oven.
[0008] The heating system includes multiple blow pipes fixed to the top of the inner side of the enclosed oven. The bottom surface of each blow pipe has spaced-apart nozzles. The ends of the blow pipes are connected to a manifold, which in turn connects to an air inlet flange on the outside of the enclosed oven. A reflux unit is located on the bottom surface of the inner side of the enclosed oven and is connected to a reflux flange. The air inlet flange and the reflux flange are connected to a circulating heating unit. The circulating heating unit can be a combustion furnace for both furnace gas drying and flue gas drying, using the flue gas generated by combustion as the drying heat source, or a heat source pump can be used as the drying heat source.
[0009] An open drying heat source is provided, comprising an axial flow fan fixed to the top of the rear end of the drying tunnel, the output end of which is connected to a split pipe; the split pipe is connected to the protruding end of the drying tunnel.
[0010] A drying rack, which is slidably mounted on an inner rail.
[0011] During drying, the wood is first arranged at intervals on the drying racks. Then, the drying racks are pushed to the inner rails, and multiple rows of drying racks are pushed into the enclosed oven, with some remaining outside the enclosed oven. Next, the open drying hood is pulled, so that the hollow-ended open drying hood overlaps with the end of the enclosed oven. Then, the circulating heating unit is activated, injecting heat into the blowpipes to dry the wood. After heat exchange, the low-temperature hot air descends and is reintroduced into the circulating heating unit for secondary heating via the return unit. During the heating process inside the enclosed oven, the open drying heat source operates synchronously, with axial flow air... The machine injects external cold air into the distribution pipe, which then distributes the cold air to the heat-conducting frame plate for heat absorption. The pressurized air is then blown onto the open drying hood, where the hot air continuously pre-dries the wood inside. After the wood inside the closed oven is dried, the open drying hood is pushed into the closed oven. Next, the door panel and hydraulic lifting door are opened, and the drying rack inside the closed oven is pushed out. The pre-dried wood is then pushed into the closed oven. A drying rack loaded with new wood is then pushed into the inner rail. Finally, the door panel and hydraulic lifting door are closed, and the open drying hood is pulled back to its original position, starting a new round of wood drying process.
[0012] Furthermore, guide plates are provided on both sides of the split pipe on the top surface of the heat-conducting frame plate; when the axial flow fan blows external pressure air onto the top surface of the heat-conducting frame plate, the hot air is then guided to the periphery of the heat-conducting frame plate through the guide plates, and after achieving full heat exchange with the heat-conducting frame plate, the hot air is blown into the interior of the open drying hood.
[0013] Furthermore, the open drying hood is an enclosure made of color steel plate, the bottom surface of which is fixed to a wheel plate, and the traveling wheels are mounted on the wheel plate; the traveling wheels at the bottom of the wheel plate can drive the enclosure to slide, so as to be stored outside the closed drying oven or pushed to the end of the closed drying oven.
[0014] Furthermore, multiple sets of electric heating boxes are fixedly fitted and interlocked on both sides of the enclosed oven. Each electric heating box includes a box body, and electric heating tubes and a circulating fan are arranged inside the box body. An air inlet array is provided at the input end of the circulating fan. When auxiliary heating and final stage heating are required, the circulating fan and electric heating tubes are turned on. The circulating fan draws air from the air inlet array and blows the air onto the electric heating tubes. After heating is completed, the hot air reaches the wood for heating. The circulating fan realizes heat circulation inside the enclosed oven.
[0015] Furthermore, a pressure head is installed on the bottom outer side of the door panel, directly opposite the inner rail. The pressure head includes a slide fixed to the door panel, and a sealing block that is slidably disposed on the slide and movably fitted with the inner rail is provided. The sealing block closes and limits the door panel. When the door panel needs to be opened, the sealing block is lifted, and the door panel can be opened directly.
[0016] Furthermore, the reflux unit includes a reflux channel pre-embedded in the bottom inner surface of the enclosed oven; the top surface of the reflux channel is provided with an elongated row of holes; the side of the reflux channel is connected to the reflux flange through a pre-embedded pipe; when hot air blows the dried wood from top to bottom, the low-temperature hot air at the bottom enters the reflux channel through the elongated row of holes, and is extracted through the pre-embedded pipe, and then the low-temperature hot air re-enters the circulating heating unit for heating, or enters the exhaust gas treatment system.
[0017] Furthermore, multiple ultraviolet sterilization tubes are fixed to the top of the inner side of the sealed oven, and the inner surface of the sealed oven is covered with stainless steel. The ultraviolet sterilization tubes emit sterilizing ultraviolet light, which directly irradiates the wood or is reflected multiple times by the stainless steel cover onto the wood, thus ensuring the sterilization effect inside the sealed oven.
[0018] Compared with existing technologies, the wood processing drying device with sterilization function of this utility model adopts a combination of open drying and closed drying. In open drying, hot air and air convection are used to quickly complete the basic drying of wood. After the basic drying is completed, closed drying is used to accelerate the overall drying efficiency of wood. The heat source for open drying is provided by the internal heat source of closed drying, so there is no need to provide a separate heat source. In open drying, it can be isolated from the inside of the closed drying oven to avoid the leakage of flue gas caused by high-temperature flue gas drying, which would cause environmental pollution, or to avoid the leakage of heat source during the hot press drying process, which would result in the loss of the closed drying effect. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the installation structure of the outer rail body and the open drying hood of this utility model.
[0020] Figure 2 This is a schematic diagram of the overall structure of the wood processing and drying device according to Embodiment 1 of this utility model.
[0021] Figure 3 This is a schematic diagram of the overall structure of the enclosed drying oven of this utility model.
[0022] Figure 4 This is a partial cross-sectional structural diagram of the enclosed oven of this utility model.
[0023] Figure 5 This is a schematic diagram of the installation structure of the blow pipe, manifold, and air inlet flange of this utility model.
[0024] Figure 6 This is a schematic diagram of the recirculation unit structure of this utility model.
[0025] Figure 7 This is a schematic diagram of the overall structure of the wood processing and drying device according to Embodiment 2 of this utility model.
[0026] Figure 8 This is a schematic diagram of the overall structure of the electric heating box of this utility model.
[0027] Figure 9 This is a partial cross-sectional view of the enclosed oven in Embodiment 3 of this utility model.
[0028] Reference numerals: 1. Outer rail body, 2. Inner rail body, 3. Open drying hood, 4. Traveling wheels, 5. Drying channel, 6. Heat-conducting frame plate, 7. Spray channel, 8. Door panel, 9. Hydraulic lifting door, 10. Spray pipe, 11. Spray nozzle, 12. Manifold, 13. Air inlet flange, 14. Return flange, 15. Axial flow fan, 16. Diverter pipe, 17. Guide plate, 18. Electric heating box, 19. Box body, 20. Electric heating tube, 21. Circulating fan, 22. Air inlet row, 23. Slide seat, 24. Sealing block, 25. Return channel, 26. Long strip hole row, 27. Embedded pipe, 28. Ultraviolet sterilization tube. Detailed Implementation
[0029] Example 1:
[0030] like Figures 1 to 6 The wood processing and drying device with sterilization function shown includes:
[0031] A guide rail assembly, the guide rail assembly including an outer rail body 1, and an inner rail body 2 fixed inside the outer rail body 1;
[0032] An open drying hood 3 is a square hood with a hollow bottom. A row of traveling wheels 4 are fixed on both sides of the bottom surface of the open drying hood 3. The traveling wheels 4 are rolled and installed with the outer rail body 1.
[0033] A closed drying oven includes a drying channel 5, which is fixed to the inner side of an outer rail 1. The top of the front part of the drying channel 5 is higher than the rear part of the drying channel 5. A hollow heat-conducting frame plate 6 is embedded in the inner side of the front part of the drying channel 5, and a spray channel 7 is formed between the heat-conducting frame plate 6 and the inner wall of the front section of the drying channel 5. The heat-conducting frame plate 6 is flush with the inner wall of the rear section of the drying channel 5. A door panel 8 is hinged to the front end of the heat-conducting frame plate 6. A hydraulic lifting door 9 is provided at the rear end of the drying channel 5. The inner rail 2 moves through the closed drying oven.
[0034] The heating system includes multiple blow pipes 10 fixed to the top of the inner side of the enclosed oven. Each blow pipe 10 has a spaced-apart blow nozzle 11 on its bottom surface. The ends of the blow pipes 10 are connected to a manifold 12, and the ends of the manifold 12 are connected to an air inlet flange 13 outside the enclosed oven. A reflux unit is provided on the bottom surface of the inner side of the enclosed oven, and the reflux unit is connected to a reflux flange 14. The air inlet flange 13 and the reflux flange 14 are connected to a circulating heating unit. The circulating heating unit can be a combustion furnace for both furnace gas drying and flue gas drying, using the flue gas generated by combustion as the drying heat source, or a heat source pump can be used as the drying heat source.
[0035] An open drying heat source is provided, which includes an axial flow fan 15 fixed to the top of the rear end of the drying channel 5. The output end of the axial flow fan 15 is connected to a split pipe 16. The split pipe 16 is connected to the protruding end of the drying channel 5.
[0036] The drying rack is slidably mounted on the inner rail 2.
[0037] During drying, the wood is first arranged at intervals on the drying racks. Then, the drying racks are pushed to the inner rail 2, and multiple rows of drying racks are pushed into the closed drying oven, with some remaining outside the closed drying oven. Next, the open drying hood 3 is pulled, so that the hollow open drying hood 3 overlaps with the end of the closed drying oven. Then, the circulating heating unit is turned on, and the circulating heating unit injects heat into the blowpipe 10. The wood is dried by blowing through the blowpipe 10. After heat exchange, the low-temperature hot air descends and is sent back into the circulating heating unit for secondary heating through the return unit. During the heating process of the wood inside the closed drying oven, the open drying heat source operates synchronously, and the axial flow fan 15 blows the wood outwards. Cold air is injected into the diversion pipe 16 and diverted through the diversion pipe 16. The cold air comes into contact with the heat-conducting frame plate 6 to absorb heat and blows the pressurized air onto the open drying hood 3. The hot air continuously pre-dries the wood inside the open drying hood 3. After the wood inside the closed oven is dried, the open drying hood 3 is pushed into the closed oven. Then, the door panel 8 and the hydraulic lifting door 9 are opened, and the drying rack inside the closed oven is pushed out. The pre-dried wood is pushed into the closed oven. The drying rack loaded with new wood is pushed into the inner rail body 2. Then, the door panel 8 and the hydraulic lifting door 9 are closed, and the open drying hood 3 is pulled back to its original position to start a new round of wood drying process.
[0038] The top surface of the heat-conducting frame plate 6 is provided with guide plates 17 on both sides of the diversion pipe 16; when the axial flow fan 15 blows external pressure air onto the top surface of the heat-conducting frame plate 6, the hot air is then guided to the periphery of the heat-conducting frame plate 6 through the guide plates 17, and after achieving full heat exchange with the heat-conducting frame plate 6, the hot air is blown into the interior of the open drying hood 3.
[0039] The open drying hood 3 is an enclosure made of color steel plate. The bottom surface of the enclosure is fixed to the wheel plate, and the walking wheels 4 are installed on the wheel plate. The walking wheels 4 at the bottom of the wheel plate can drive the enclosure to slide, so as to be stored outside the closed drying oven or pushed to the end of the closed drying oven.
[0040] A pressure head is installed on the bottom outer side of the door panel 8, directly opposite the inner rail 2. The pressure head includes a slide block 23 fixed on the door panel 8. A sealing block 24 that is slidably disposed on the slide block 23 and movably fitted into the inner rail 2 is provided. The sealing block 24 automatically slides down from the slide block 23 to close and limit the door panel 8. When the door panel 8 needs to be opened, the sealing block 24 is lifted to open the door panel 8 directly.
[0041] The reflux unit includes a reflux channel 25 pre-embedded in the bottom inner side of the enclosed oven; the top surface of the reflux channel 25 is provided with an elongated row of holes 26; the side of the reflux channel 25 is connected to the reflux flange 14 through a pre-embedded pipe 27; when hot air blows the dried wood from top to bottom, the low-temperature hot air at the bottom enters the reflux channel 25 through the elongated row of holes 26, and is extracted through the pre-embedded pipe 27, and then the low-temperature hot air re-enters the circulating heating unit for heating, or enters the exhaust gas treatment system.
[0042] Example 2:
[0043] like Figure 7 and Figure 8 The wood processing and drying device with sterilization function shown has multiple sets of electric heating boxes 18 fixedly fitted and spaced apart on both sides of the closed drying oven. Each electric heating box 18 includes a box body 19, and electric heating tubes 20 and circulating fans 21 are arranged inside the box body 19. The box body 19 is provided with an air inlet row 22 at the input end of the circulating fan 21. When auxiliary heating and final stage heating are required, the circulating fan 21 and electric heating tubes 20 are turned on. The circulating fan 21 draws air from the air inlet row 22 and blows the air onto the electric heating tubes 20. After heating is completed, the hot air reaches the wood for heating. The circulating fan 21 realizes heat circulation inside the closed drying oven.
[0044] Example 3:
[0045] like Figure 9 The wood processing and drying device with sterilization function shown has multiple ultraviolet sterilization tubes 28 fixed on the top of the inner side of the closed oven, and the inner surface of the closed oven is covered with stainless steel. The ultraviolet sterilization tubes 28 emit sterilization ultraviolet light, which directly irradiates the wood or is reflected multiple times by the stainless steel cover, thus ensuring the sterilization effect inside the closed oven.
[0046] The above embodiments are merely preferred embodiments of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model are included within the scope of the present utility model.
Claims
1. A wood processing and drying device with sterilization function, characterized in that: include: A guide rail assembly, the guide rail assembly including an outer rail body, and an inner rail body fixed inside the outer rail body; An open drying hood is a square hood with a hollow bottom. A row of wheels is fixed on both sides of the bottom of the open drying hood, and the wheels are rolled on the outer rail. A closed drying oven includes a drying tunnel fixed to the inner side of an outer rail body. The top of the front section of the drying tunnel is higher than the rear section. A hollow heat-conducting frame plate is embedded in the inner side of the front section of the drying tunnel, forming a spray channel between the heat-conducting frame plate and the inner wall of the front section of the drying tunnel. The heat-conducting frame plate is flush with the inner wall of the rear section of the drying tunnel. A door panel is hinged to the front end of the heat-conducting frame plate. A hydraulic lifting door is provided at the rear end of the drying tunnel. The inner rail body moves through the closed drying oven. The heating system includes multiple blow pipes fixed to the top of the inner side of the enclosed oven. Each blow pipe has a spaced-apart nozzle on its bottom surface. The ends of the blow pipes are connected to a manifold, which in turn connects to an air inlet flange on the outside of the enclosed oven. A reflux unit is located on the bottom of the inner side of the enclosed oven and is connected to a reflux flange. The air inlet flange and the reflux flange are connected to a circulating heating unit. An open drying heat source is provided, comprising an axial flow fan fixed to the top of the rear end of the drying tunnel, the output end of which is connected to a split pipe; the split pipe is connected to the protruding end of the drying tunnel. A drying rack, which is slidably mounted on an inner rail.
2. The wood processing and drying device with sterilization function according to claim 1, characterized in that: The top surface of the heat-conducting frame plate is provided with guide plates on both sides of the distribution pipe.
3. The wood processing and drying device with sterilization function according to claim 1, characterized in that: The open drying hood is enclosed by a color steel plate, the bottom surface of which is fixed to a wheel plate, and the walking wheels are mounted on the wheel plate.
4. The wood processing and drying device with sterilization function according to claim 1, characterized in that: The enclosed oven has multiple sets of electric heating boxes fixedly fitted together on both sides at intervals. Each electric heating box includes a box body, and an electric heating tube and a circulating fan are arranged inside the box body. The box body is provided with an air inlet row at the input end of the circulating fan.
5. The wood processing and drying device with sterilization function according to claim 1, characterized in that: A pressure head is installed on the bottom outer side of the door panel, directly opposite the inner rail. The pressure head includes a slide fixed to the door panel, and a sealing block that is slidably disposed on the slide and movably fitted with the inner rail is provided.
6. The wood processing and drying device with sterilization function according to claim 1, characterized in that: The reflux unit includes a reflux channel embedded in the bottom inner side of the enclosed oven; the top surface of the reflux channel has a row of elongated holes; the side of the reflux channel is connected to the reflux flange through a pre-embedded pipe.
7. The wood processing and drying device with sterilization function according to claim 1, characterized in that: Multiple ultraviolet sterilization tubes are fixed to the top of the inner side of the sealed oven, and the inner surface of the sealed oven is covered with stainless steel.