High-efficiency energy-saving corrugated board drying equipment
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINE DRAGON INTELLIGENT PACKAGING (CHONGQING) CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-03
AI Technical Summary
Existing corrugated cardboard drying equipment is not convenient for uniformly drying corrugated cardboard, nor is it convenient for waste heat recovery from exhaust gas.
A high-efficiency and energy-saving corrugated cardboard drying equipment was designed. Air is heated by electric heating tubes and distributed to branch pipes by fans for uniform drying. The exhaust gas is returned to the hot air base through the return pipe and treated by the drying sponge to achieve waste heat recovery.
This technology enables uniform drying of corrugated cardboard and waste heat recovery from exhaust gases, thereby improving production efficiency and reducing energy consumption.
Smart Images

Figure CN224455199U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of corrugated cardboard drying technology, specifically to a high-efficiency and energy-saving corrugated cardboard drying equipment. Background Technology
[0002] Corrugated board drying is a crucial step in the board production process. By heating and evaporating the moisture in the base paper and regulating humidity, the quality of the board forming is ensured. The moisture content of the base paper needs to be controlled between 9% and 12%. During the drying process, temperature regulation ensures even evaporation of moisture, avoiding impact on subsequent bonding. Precise temperature control using an electric heating steam generator ensures complete adhesive curing, improving the board's strength and mildew resistance. Rapid drying reduces the production cycle while avoiding over-drying that could cause paper deformation or cracking. Temperature and speed must be matched; too low a temperature will result in insufficient drying, while too high a temperature may damage the paper structure. However, existing corrugated board drying equipment is not conducive to uniform drying of corrugated board and does not facilitate waste heat recovery from exhaust gases.
[0003] To address the aforementioned issues, a high-efficiency and energy-saving corrugated cardboard drying equipment is proposed here. Utility Model Content
[0004] The purpose of this utility model is to provide a high-efficiency and energy-saving corrugated cardboard drying equipment to solve the problems mentioned in the background art that the existing corrugated cardboard drying equipment is not convenient for uniform drying of corrugated cardboard and is not convenient for waste heat recovery of exhaust gas.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency and energy-saving corrugated cardboard drying equipment, comprising a drying chamber, wherein a diversion pipe is fixedly installed on the top of one side of the inner wall of the drying chamber and the bottom of one side of the inner wall of the drying chamber, and a plurality of branch pipes are fixedly connected to one side of each of the two diversion pipes, and a plurality of air outlets are opened on the surface of each of the branch pipes; a hot air seat is fixedly installed at the top of the drying chamber, and a plurality of electric heating tubes are fixedly installed at one end of the inner side of the hot air seat; a temperature sensor is fixedly installed at the top of the inner side of the hot air seat; a fan is fixedly installed on one side of the hot air seat, and an air outlet pipe is fixedly connected to the air outlet end of the fan; two conduits are fixedly connected to one side of the air outlet pipe, and the ends of the two conduits away from the air outlet pipe are respectively connected to the two diversion pipes.
[0006] Several electric heating elements generate heat to heat the air inside the hot air base. The hot air is then guided into the outlet duct by a fan, then into two branch pipes via two conduits, and finally distributed into several branch pipes. The hot air is then evenly discharged through several air outlets, thus achieving uniform drying of the corrugated cardboard. The waste air is then returned to the hot air base via a return pipe, and dried by a drying sponge, thus recovering the waste heat and achieving energy saving.
[0007] Preferably, a drying sponge is fixedly installed in the middle of the inner side of the hot air seat, which facilitates the drying of waste air.
[0008] Preferably, a return pipe is fixedly connected to the connection between the drying box and the hot air base, which facilitates the return of waste air to the hot air base.
[0009] Preferably, a placement mesh plate is slidably arranged in the middle of the inner side of the drying oven, a sealing plate is fixedly connected to one end of the placement mesh plate, and an auxiliary handle is fixedly arranged on the outer side of the sealing plate, so that the sealing plate can be moved easily by the auxiliary handle.
[0010] Preferably, a sealing groove is provided in the middle of one side of the drying oven, and the sealing groove is engaged with the sealing plate. The sealing groove facilitates the limiting of the sealing plate.
[0011] Preferably, the air inlet end of the fan is fixedly connected to an air inlet pipe, and the end of the air inlet pipe away from the fan extends into the interior of the hot air base and is fixedly connected to a filter. The filter facilitates the filtration of the air entering the fan.
[0012] Preferably, a control panel is fixedly installed on the front of the hot air base, and several heating elements, temperature sensors and fans are electrically connected to the control panel. The control panel controls the heating elements, temperature sensors and fans to be powered on and start working.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: heat is generated by energizing several electric heating tubes, which facilitates the heating of the air in the hot air base. The hot air is then introduced into the air outlet pipe by a fan, and then into two branch pipes through two conduits. The hot air is then distributed into several branch pipes and then evenly discharged through several air outlets, thereby achieving uniform drying of the corrugated cardboard. The waste air is returned to the hot air base through the return pipe, and the setting of the drying sponge facilitates the drying of the waste air, thereby realizing the recovery of waste heat from the waste air and thus achieving energy saving. Attached Figure Description
[0014] Figure 1 This is a perspective view of the present utility model;
[0015] Figure 2 This is a front sectional view of the present invention;
[0016] Figure 3 This is an enlarged view of a partial structure of the present invention;
[0017] Figure 4 This is an enlarged view of part A of this utility model.
[0018] In the diagram: 1. Drying oven; 2. Hot air base; 3. Return pipe; 4. Drying sponge; 5. Heating element; 6. Temperature sensor; 7. Fan; 8. Air outlet pipe; 9. Conduit pipe; 10. Diverter pipe; 11. Placement mesh plate; 12. Sealing plate; 13. Auxiliary handle; 14. Sealing groove; 15. Branch pipe; 16. Air outlet; 17. Air inlet pipe; 18. Filter; 19. Control panel. Detailed Implementation
[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0020] Please see Figure 1-4 This utility model provides a high-efficiency and energy-saving corrugated cardboard drying equipment, including a drying chamber 1. A diversion pipe 10 is fixedly installed on the top and bottom of one side of the inner wall of the drying chamber 1. Several branch pipes 15 are fixedly connected to one side of each of the two diversion pipes 10. Several air outlets 16 are opened on the surface of each branch pipe 15. A hot air base 2 is fixedly installed at the top of the drying chamber 1. Several electric heating tubes 5 are fixedly installed at one end of the inner side of the hot air base 2. A temperature sensor 6 is fixedly installed at the top of the inner side of the hot air base 2. A fan 7 is fixedly installed on one side of the hot air base 2. An air outlet pipe 8 is fixedly connected to the air outlet end of the fan 7. Two conduits 9 are fixedly connected to one side of the air outlet pipe 8. One end of each conduit 9, away from the outlet duct 8, is connected to two branch pipes 10. Heat is generated by energizing several electric heating tubes 5, which heats the air in the hot air base 2. The hot air is then guided into the outlet duct 8 by the fan 7, and then into the two branch pipes 10 through the two conduits 9. The hot air is then distributed into several branch pipes 15 and then evenly discharged through several air outlets 16, thus achieving uniform drying of the corrugated cardboard. The waste air is then returned to the hot air base 2 through the return pipe 3, and then dried by the drying sponge 4, thus achieving waste heat recovery and energy saving.
[0021] A drying sponge 4 is fixedly installed in the middle of the inner side of the hot air base 2. A return pipe 3 is fixedly connected to the connection between the drying box 1 and the hot air base 2. A placement mesh plate 11 is slidably installed in the middle of the inner side of the drying box 1. A sealing plate 12 is fixedly connected to one end of the placement mesh plate 11. An auxiliary handle 13 is fixedly installed on the outer side of the sealing plate 12.
[0022] In use, the setting of the drying sponge 4 facilitates the drying of waste air, the setting of the return pipe 3 facilitates the return of waste air to the hot air seat 2, and the setting of the auxiliary handle 13 facilitates the movement of the sealing plate 12.
[0023] A sealing groove 14 is provided in the middle of one side of the drying oven 1. The sealing groove 14 is engaged with the sealing plate 12. The air inlet end of the fan 7 is fixedly connected to the air inlet pipe 17. The end of the air inlet pipe 17 away from the fan 7 extends into the interior of the hot air base 2 and is fixedly connected to the filter 18. A control panel 19 is fixedly installed on the front of the hot air base 2. Several electric heating tubes 5, temperature sensors 6 and the fan 7 are all electrically connected to the control panel 19.
[0024] In use, the sealing groove 14 facilitates the limiting of the sealing plate 12, the filter 18 facilitates the filtration of the air entering the fan 7, and the control panel 19 controls the power supply of several heating tubes 5, temperature sensor 6 and fan 7 to start working.
[0025] In this embodiment, the corrugated cardboard is placed on the placement mesh plate 11. Heat is generated by energizing several electric heating tubes 5, which facilitates the heating of the air in the hot air seat 2. The hot air is then introduced into the air outlet pipe 8 by the fan 7, and then into two branch pipes 10 through two conduits 9. The hot air is then distributed into several branch pipes 15, and then evenly discharged through several air outlets 16, thereby achieving uniform drying of the corrugated cardboard. The waste air is returned to the hot air seat 2 through the return pipe 3, and then dried by the drying sponge 4, thereby achieving waste heat recovery and energy saving. The sealing groove 14 helps to limit the sealing plate 12, and the filter 18 facilitates the filtration of the air entering the fan 7.
[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A high-efficiency energy-saving corrugated board drying device, comprising a drying box (1), characterized in that: A diversion pipe (10) is fixedly installed on the top of one side of the inner wall of the drying box (1) and the bottom of one side of the inner wall of the drying box (1). Several branch pipes (15) are fixedly connected to one side of each of the two diversion pipes (10). Several air outlets (16) are opened on the surface of each of the branch pipes (15). A hot air seat (2) is fixedly installed at the top of the drying box (1). Several electric heating tubes (5) are fixedly installed at one end of the inner side of the hot air seat (2). A temperature sensor (6) is fixedly installed at the top of the inner side of the hot air seat (2). A fan (7) is fixedly installed on one side of the hot air seat (2). An air outlet pipe (8) is fixedly connected to the air outlet end of the fan (7). Two conduits (9) are fixedly connected to one side of the air outlet pipe (8). The ends of the two conduits (9) away from the air outlet pipe (8) are respectively connected to the two diversion pipes (10).
2. The high-efficiency and energy-saving corrugated cardboard drying equipment according to claim 1, characterized in that: A dry sponge (4) is fixedly installed in the middle of the inner side of the hot air seat (2).
3. The high-efficiency energy-saving corrugated paperboard drying device according to claim 1, characterized in that: A return pipe (3) is fixedly connected to the connection between the drying box (1) and the hot air seat (2).
4. The high-efficiency energy-saving corrugated paperboard drying device according to claim 1, characterized in that: A placement mesh plate (11) is slidably arranged in the middle of the inner side of the drying box (1). A sealing plate (12) is fixedly connected to one end of the placement mesh plate (11). An auxiliary handle (13) is fixedly arranged on the outer side of the sealing plate (12).
5. The high-efficiency energy-saving corrugated board drying device according to claim 4, characterized in that: A sealing groove (14) is provided in the middle of one side of the drying box (1), and the sealing groove (14) is engaged with the sealing plate (12).
6. The high-efficiency energy-saving corrugated board drying device according to claim 1, characterized in that: The air inlet end of the fan (7) is fixedly connected to the air inlet pipe (17), and the end of the air inlet pipe (17) away from the fan (7) extends into the interior of the hot air seat (2) and is fixedly connected to the filter (18).
7. The high-efficiency and energy-saving corrugated cardboard drying equipment according to claim 1, characterized in that: A control panel (19) is fixedly installed on the front of the hot air base (2), and several of the electric heating tubes (5), temperature sensors (6) and fans (7) are electrically connected to the control panel (19).