Energy-saving drying device in regenerated corrugated paper production
By introducing a screw feeder and return pipe into the regenerated corrugated paper drying device, the heat in the hot steam is absorbed and recovered, and the problems of high energy consumption and low thermal efficiency of traditional drying devices are solved, achieving heat recovery and energy saving effects.
Patent Information
- Application Number
- CN202421286934.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-06-06
AI Technical Summary
Traditional recycled corrugated paper drying devices have high energy consumption and low thermal efficiency, so the heat in the hot steam cannot be recycled, resulting in waste of energy.
An energy-saving drying device including a drying box and a dehumidification assembly is designed to absorb heat from the moisture-heated steam using a screw feeder, and the dried hot air is recovered into the drying box through the return air pipe.
The heat recovery and utilization in the hot steam is achieved, energy consumption is reduced, thermal efficiency is improved, and energy-saving drying is achieved.
Smart Images
Figure CN222460011U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drying devices for producing recycled corrugated paper, in particular to an energy-saving drying device in the production of recycled corrugated paper. Background Art
[0002] With the consumption of paper resources, in order to achieve the effect of energy saving, corrugated paper and other types of paper materials are usually recycled and regenerated. When recycling and regenerating, it is usually necessary to dry the recycled pulp, etc. When performing the production and drying operation of recycled corrugated paper, corresponding drying devices are usually used. There are many types of drying devices on the market. The drying process is one of the main sources of energy consumption. Traditional drying devices usually adopt hot air circulation or direct heating. These methods not only have high energy consumption, but also have certain limitations in thermal efficiency.
[0003] Limited by the traditional drying technology, the traditional recycled corrugated paper drying device mainly relies on a large amount of heat energy input, and the hot steam generated during the drying process is generally discharged directly to the outside, which will cause the heat energy in the hot steam to be wasted and the heat in the hot steam cannot be recycled, which is not conducive to achieving the effect of energy saving. In view of this, we proposed an energy-saving drying device for recycled corrugated paper production. Utility Model Content
[0004] The purpose of the utility model is to provide an energy-saving drying device in the production of recycled corrugated paper to solve the defects mentioned in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] An energy-saving drying device in the production of recycled corrugated paper comprises a drying box, a top cover is fixedly installed on the top surface of the drying box, a dehumidification component is arranged on the drying box, the dehumidification component comprises a screw feeder arranged on one side of the drying box, a feed pipe is fixedly installed on the feed end of the screw feeder, a solenoid valve is fixedly installed on the feed pipe, a feed barrel is fixedly installed on the top end of the feed pipe, an air outlet pipe is fixedly installed on the front cylinder of the screw feeder, the end of the air outlet pipe is fixedly installed at the top position of the top cover, a return air pipe is fixedly installed on the rear cylinder of the screw feeder, the end of the return air pipe is fixedly installed on the drying box, an electric valve is fixedly installed on the end cylinder of the screw feeder, and a plurality of electric heating rods arranged linearly and equidistantly are fixedly installed between the front and rear side plates of the drying box.
[0007] Preferably, material holes are provided on the left and right side plates of the drying box, and the material holes are used for feeding and discharging operations.
[0008] Preferably, two symmetrical inspection doors are hinged on one side plate of the drying box, and the inspection doors are used to perform inspection operations on the drying box after being opened.
[0009] Preferably, a plurality of support legs arranged linearly and equidistantly are fixedly mounted on the bottom surface of the drying box, and the support legs are used for supporting operation.
[0010] Preferably, the ends of the return air pipe and the outlet air pipe arranged on the screw feeder are both located at the top of the cylinder of the screw feeder, so as to prevent debris from entering the return air pipe and the outlet air pipe.
[0011] Preferably, the return air pipe and the outlet air pipe are fixedly mounted on the inner wall of the end tube bodies of the screw feeder cylinder, and a first blocking net and a second blocking net are fixedly mounted respectively, so as to prevent the desiccant from entering the return air pipe and the outlet air pipe.
[0012] Preferably, a discharge hopper is provided at the end of the electric valve, and the discharge hopper is used to discharge the desiccant discharged from the screw feeder.
[0013] Preferably, two symmetrical left and right support rods are fixedly mounted on the cylinder of the screw feeder, and a fixing plate is fixedly mounted on the end of the support rod, and the fixing plate is fixedly mounted on the side of the drying box to facilitate the support and fixing operation of the screw feeder.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] 1. The utility model is provided with a screw feeder. After the screw feeder is filled with desiccant, hot steam is discharged into the screw feeder along the air outlet pipe. The desiccant in the screw feeder can absorb moisture. The hot air after moisture absorption continues to enter the drying box along the return air pipe, so as to achieve the effect of recycling the heat in the hot steam and achieve the effect of energy-saving drying.
[0016] 2. The utility model can control the opening and closing operation of the end of the screw feeder and the feed pipe by setting the electric valve and the solenoid valve, so that when the desiccant becomes ineffective, the electric valve and the solenoid valve can be opened to add new desiccant, and the ineffective desiccant can be discharged from the end of the screw feeder, which is convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the dehumidification component of the utility model;
[0019] Figure 3 It is a partial structural schematic diagram of the dehumidification component of the utility model.
[0020] The meaning of each number in the figure is:
[0021] 1. Drying box; 10. Material hole; 11. Inspection door; 12. Electric heating rod; 13. Support legs; 14. Top cover;
[0022] 2. Dehumidification assembly; 20. Screw feeder; 21. Feed pipe; 22. Solenoid valve; 23. Feed cylinder; 24. Air return pipe; 241. First blocking net; 25. Air outlet pipe; 251. Second blocking net; 26. Electric valve; 27. Support rod; 271. Fixed plate;
[0023] 3. Unloading hopper. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] See also Figure 1-Figure 3 The utility model provides a technical solution: an energy-saving drying device in the production of recycled corrugated paper, comprising a drying box 1, a top cover 14 is fixedly installed on the top surface of the drying box 1, a dehumidification component 2 is arranged on the drying box 1, and the dehumidification component 2 comprises a screw feeder 20 arranged on one side of the drying box 1, a feed pipe 21 is fixedly installed on the feed end of the screw feeder 20, a solenoid valve 22 is fixedly installed on the feed pipe 21, and a feed barrel 23 is fixedly installed on the top of the feed pipe 21, so as to facilitate the addition of desiccant into the feed barrel 23 and the subsequent moisture absorption operation of the hot steam;
[0026] Specifically, an air outlet pipe 25 is fixedly installed on the front cylinder of the screw feeder 20, and the end of the air outlet pipe 25 is fixedly installed at the top position of the top cover 14. A return air pipe 24 is fixedly installed on the rear cylinder of the screw feeder 20, and the end of the return air pipe 24 is fixedly installed on the drying box 1. An electric valve 26 is fixedly installed on the end cylinder of the screw feeder 20, and a plurality of electric heating rods 12 arranged linearly and equidistantly are fixedly installed between the front and rear side plates of the drying box 1, so as to facilitate the heating operation using the electric heating rods 12, and the hot steam in the heating process can enter the screw feeder 20 along the air outlet pipe 25, and be absorbed by the desiccant in the screw feeder 20. The dried hot air enters the drying box 1 along the return air pipe 24 to be circulated, thereby achieving the effect of recycling the heat in the hot steam.
[0027] In this embodiment, material holes 10 are provided on the left and right side plates of the drying box 1, and the material holes 10 are used for feeding and discharging operations.
[0028] Specifically, two symmetrical inspection doors 11 are hinged on one side plate of the drying box 1 , and the inspection doors 11 are used to perform inspection operations on the drying box 1 after being opened.
[0029] Furthermore, a plurality of support legs 13 arranged linearly and equidistantly are fixedly mounted on the bottom surface of the drying box 1, and the support legs 13 are used for supporting operation.
[0030] In addition, the ends of the return air pipe 24 and the outlet air pipe 25 arranged on the screw feeder 20 are both located at the top of the cylinder of the screw feeder 20, which is used to prevent debris from entering the return air pipe 24 and the outlet air pipe 25; the return air pipe 24 and the outlet air pipe 25 are fixedly installed on the inner wall of the end tubes on the cylinder of the screw feeder 20, and the first blocking net 241 and the second blocking net 251 are respectively fixedly installed on the inner wall of the tube bodies at the ends, which has the effect of blocking the desiccant from entering the return air pipe 24 and the outlet air pipe 25.
[0031] It is worth noting that a discharge hopper 3 is provided at the end of the electric valve 26 , and the discharge hopper 3 is used to discharge the desiccant discharged from the screw feeder 20 .
[0032] It is worth noting that two symmetrical support rods 27 are fixedly installed on the cylinder of the screw feeder 20, and a fixed plate 271 is fixedly installed at the end of the support rod 27. The fixed plate 271 is fixedly installed on the side of the drying box 1 to facilitate the support and fixing operation of the screw feeder 20.
[0033] When the energy-saving drying device for recycled corrugated paper production of the utility model is used, first, add desiccant into the feed barrel 23, open the solenoid valve 22, and use the screw feeder 20 to work, so as to realize the desiccant in the feed barrel 23 is transported into the barrel of the screw feeder 20. After transporting an appropriate amount of desiccant, close the solenoid valve 22 and the electric valve 26. At this time, as the electric heating rod 12 heats and starts the drying operation, the hot steam enters the screw feeder 20 along the air outlet pipe 25 and is dried and moisture-absorbed by the desiccant in the screw feeder 20. The dried hot air continues to enter the drying box 1 along the return air pipe 24 for use;
[0034] When the desiccant in the screw feeder 20 becomes ineffective, the solenoid valve 22 and the electric valve 26 are opened. At this time, the screw feeder 20 is operated to continuously convey the new desiccant in the feed barrel 23 to the barrel of the screw feeder 20. At the same time, the ineffective desiccant in the barrel of the screw feeder 20 is discharged from the end of the electric valve 26.
[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. An energy-saving drying device for producing recycled corrugated paper, comprising a drying box (1), characterized in that: A top cover (14) is fixedly mounted on the top surface of the drying box (1), a dehumidification assembly (2) is arranged on the drying box (1), and the dehumidification assembly (2) comprises a screw feeder (20) arranged on one side of the drying box (1), a feed pipe (21) is fixedly mounted on the feed end of the screw feeder (20), a solenoid valve (22) is fixedly mounted on the feed pipe (21), a feed cylinder (23) is fixedly mounted on the top end of the feed pipe (21), and a front cylinder of the screw feeder (20) is fixedly mounted on the front cylinder. An air outlet pipe (25) is fixedly installed, and the end of the air outlet pipe (25) is fixedly installed at the top position of the top cover (14); a return air pipe (24) is fixedly installed on the rear side cylinder of the screw feeder (20), and the end of the return air pipe (24) is fixedly installed on the drying box (1); an electric valve (26) is fixedly installed on the end cylinder of the screw feeder (20); and a plurality of electric heating rods (12) arranged linearly and equidistantly are fixedly installed between the front and rear side plates of the drying box (1).
2. The energy-saving drying device for recycled corrugated paper production according to claim 1, characterized in that: Material holes (10) are provided on the left and right side plates of the drying box (1), and the material holes (10) are used for feeding and discharging operations.
3. The energy-saving drying device for recycled corrugated paper production according to claim 1, characterized in that: Two symmetrical inspection doors (11) are hingedly connected to one side plate of the drying box (1). The inspection doors (11) are used to perform inspection operations on the drying box (1) after opening.
4. The energy-saving drying device for recycled corrugated paper production according to claim 1, characterized in that: A plurality of support legs (13) arranged linearly and equidistantly are fixedly mounted on the bottom surface of the drying box (1), and the support legs (13) are used for supporting operation.
5. The energy-saving drying device for recycled corrugated paper production according to claim 1, characterized in that: The ends of the return air pipe (24) and the outlet air pipe (25) arranged on the screw feeder (20) are both located at the top of the cylinder of the screw feeder (20), so as to prevent debris from entering the return air pipe (24) and the outlet air pipe (25).
6. The energy-saving drying device for recycled corrugated paper production according to claim 5, characterized in that: The return air pipe (24) and the outlet air pipe (25) are fixedly mounted on the inner wall of the end tube bodies of the screw feeder (20), and a first blocking net (241) and a second blocking net (251) are fixedly mounted respectively.
7. The energy-saving drying device for recycled corrugated paper production according to claim 1, characterized in that: A discharge hopper (3) is provided at the end of the electric valve (26), and the discharge hopper (3) is used to discharge the desiccant discharged from the screw feeder (20).
8. The energy-saving drying device for recycled corrugated paper production according to claim 1, characterized in that: Two mutually symmetrical left and right support rods (27) are fixedly mounted on the cylinder of the screw feeder (20), and a fixed plate (271) is fixedly mounted at the end of the support rod (27), and the fixed plate (271) is fixedly mounted on the side of the drying box (1).