Peripheral heating hot cylinder

Abstract

The utility model discloses a periphery heating hot cylinder which comprises a base and a preheating cylinder body, a plurality of groups of semicircular cylinder bodies are fixedly installed on the periphery of the inner wall of the preheating cylinder body in an annular array mode, the two ends of the preheating cylinder body are fixedly connected with connecting shafts respectively, and air channels are reserved in the connecting shafts. The multiple sets of semicircular cylinder bodies communicate with the air channel in the connecting shaft through the preheating channel, and the multiple sets of semicircular cylinder bodies are fixedly installed on the periphery of the inner wall of the preheating cylinder body in an annular array mode, so that multidirectional and uniform transfer of heat is achieved. According to the design, the problem of local overheating or insufficient heating possibly occurring in a traditional heating mode is solved, an air channel is reserved in the connecting shaft, and the semicircular cylinder bodies communicate with the air channel in the connecting shaft through the preheating channels. Due to the design of the airflow channels, it is ensured that heating media can smoothly enter all the semicircular cylinder bodies, efficient transfer and utilization of heat are achieved, meanwhile, heat loss is reduced, and the heating efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of corrugated paper production technology, specifically to a peripheral heating cylinder. Background Technology

[0002] In the production process of corrugated cardboard, the heating cylinder is one of the key pieces of equipment, which undertakes the important task of heating and shaping the cardboard. The heating efficiency and heat distribution uniformity of the heating cylinder directly affect the production quality, production efficiency and energy consumption cost of corrugated cardboard.

[0003] In existing technologies, ordinary hot cylinders are prone to forming condensate films inside the heating cylinder, which hinder heat exchange, resulting in uneven temperature inside the cylinder, long preheating time, and steam waste. Therefore, we need to propose a peripheral heating hot cylinder. Utility Model Content

[0004] The purpose of this invention is to provide a peripheral heating cylinder. Through multi-directional uniform heating, optimized airflow channels, a rotatable preheating cylinder body, and a compact structure, it achieves efficient and uniform heating, improves the production quality and efficiency of corrugated cardboard, and solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] The peripheral heating cylinder includes: a base and a preheating cylinder body. Several sets of semi-circular cylinder bodies are fixedly installed in a ring array around the inner wall of the preheating cylinder body. Connecting shafts are fixedly connected to both ends of the preheating cylinder body. Air passages are reserved inside the connecting shafts. Several sets of semi-circular cylinder bodies are connected to the air passages inside the connecting shafts through preheating channels. One end of one set of connecting shafts is connected to a heating source mechanism.

[0007] A power assembly is provided on one side wall of the base to provide power to the connecting shaft, thereby rotating the preheating cylinder.

[0008] Preferably, the heating source mechanism includes a steam generator, a pump body is fixedly connected to one side of the steam generator, a delivery pipe is fixedly connected to one end of the pump body, a gas path rotary joint is fixedly connected to one end of the delivery pipe, and the gas path rotary joint is connected to the gas passage inside one of the connecting shafts.

[0009] Preferably, the outer wall of the conveying pipe is covered with heat-insulating material.

[0010] Preferably, the power assembly includes a drive motor, a rotating shaft, a first synchronous pulley, a second synchronous pulley, and a synchronous belt. One end of the rotating shaft is connected to the drive motor, and the other end of the rotating shaft is fixedly connected to the first synchronous pulley. The second synchronous pulley is fixedly sleeved on the outer wall of the connecting shaft, and the first synchronous pulley and the second synchronous pulley are connected by a synchronous belt drive.

[0011] Preferably, the drive motor is fixedly mounted on one side wall of the base, and one end of the output shaft of the drive motor is fixedly connected to one end of the rotating shaft.

[0012] Preferably, an air outlet pipe is fixedly connected to the outer wall of one of the connecting shafts, and the air outlet pipe is connected to the air passage.

[0013] Preferably, it also includes a one-way valve, which is connected to the outer wall of the air outlet pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention achieves multi-directional and uniform heat transfer by fixing several sets of semi-circular cylinders in a ring array around the inner wall of the preheating cylinder. This design avoids the problems of localized overheating or underheating that may occur in traditional heating methods. An air passage is pre-reserved inside the connecting shaft, and the sets of semi-circular cylinders are all connected to the air passage inside the connecting shaft through the preheating channel. This airflow channel design ensures that the heating medium can smoothly enter each semi-circular cylinder, achieving efficient heat transfer and utilization while reducing heat loss and improving heating efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the preheating cylinder of this utility model;

[0018] Figure 3 This is a side view of the preheating cylinder of this utility model;

[0019] Figure 4 This is a front view of the preheating cylinder of this utility model.

[0020] In the diagram: 1. Base; 2. Preheating cylinder; 3. Semi-circular cylinder; 4. Connecting shaft; 5. Air passage; 6. Heating source mechanism; 601. Steam generator; 602. Pump body; 603. Delivery pipe; 604. Air passage rotary joint; 701. Drive motor; 702. Rotating shaft; 703. First synchronous pulley; 704. Second synchronous pulley; 705. Synchronous belt; 8. Air outlet pipe; 9. One-way valve; 10. Preheating channel. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution:

[0023] The peripheral heating cylinder includes a base 1 and a preheating cylinder 2. These two parts constitute the basic framework of the equipment. Several sets of semi-circular cylinders 3 are fixedly installed in a ring array around the inner wall of the preheating cylinder 2. This design ensures that the heat can be applied evenly and comprehensively to the raw paper to be heated. Connecting shafts 4 are fixedly connected to both ends of the preheating cylinder 2. The connecting shafts 4 not only support the preheating cylinder 2, but also undertake the important tasks of heat transfer and power transmission.

[0024] The connecting shaft 4 has an air passage 5 reserved inside. Several sets of semi-circular cylinders 3 are connected to the air passage 5 inside the connecting shaft 4 through the preheating channel 10. The air passage 5 is the key channel for heat transfer, so that the heat generated by the heating source can smoothly enter the preheating cylinder 2. Several sets of semi-circular cylinders 3 are connected to the air passage 5 inside the connecting shaft 4 through the preheating channel 10, forming a complete heat transfer network. One end of one set of connecting shafts 4 is connected to the heating source mechanism 6, which provides the required heat for the entire preheating cylinder 2.

[0025] A power assembly is installed on one side wall of the base 1 to provide power to the connecting shaft 4, thereby rotating the preheating cylinder 2. By fixing several sets of semi-circular cylinders 3 in a circular array around the inner wall of the preheating cylinder 2, multi-directional and uniform heat transfer is achieved. This design avoids the problems of local overheating or underheating that may occur in traditional heating methods. The connecting shaft 4 has a reserved air passage 5, and the several sets of semi-circular cylinders 3 are all connected to the air passage 5 inside the connecting shaft 4 through the preheating channel 10. This airflow channel design ensures that the heating medium can smoothly enter each semi-circular cylinder 3, achieving efficient heat transfer and utilization, while reducing heat loss and improving heating efficiency.

[0026] The heating source mechanism 6 includes a steam generator 601, which is responsible for generating high-temperature steam. A pump body 602 is fixedly connected to one side of the steam generator 601, and a delivery pipe 603 is fixedly connected to one end of the pump body 602. The function of the pump body 602 is to pressurize the steam generated by the steam generator 601 and deliver it to the delivery pipe 603. A gas passage rotary joint 604 is fixedly connected to one end of the delivery pipe 603. The gas passage rotary joint 604 is connected to the gas passage 5 inside one of the connecting shafts 4. The connection between the gas passage rotary joint 604 and the gas passage 5 inside one of the connecting shafts 4 realizes the smooth transfer of steam from the heating source mechanism 6 to the preheating cylinder 2.

[0027] The outer wall of the conveying pipe 603 is covered with insulation material, which effectively reduces heat loss of steam during transmission and improves heating efficiency. This insulation material is made of high-density aluminum silicate fiber felt, which has excellent thermal insulation performance and high-temperature resistance, effectively reducing heat loss during steam transmission. The thickness of the high-density aluminum silicate fiber felt is precisely calculated based on the actual transmission distance and steam temperature to ensure that steam temperature loss is kept to a minimum during long-distance transmission, thereby improving the efficiency of the entire heating system.

[0028] The power assembly includes a drive motor 701, a rotating shaft 702, a first synchronous pulley 703, a second synchronous pulley 704, and a synchronous belt 705. One end of the rotating shaft 702 is connected to the drive motor 701, and the other end of the rotating shaft 702 is fixedly connected to the first synchronous pulley 703. The second synchronous pulley 704 is fixedly sleeved on the outer wall of the connecting shaft 4. The first synchronous pulley 703 and the second synchronous pulley 704 are connected by a transmission drive through the synchronous belt 705. The drive motor 701 serves as the energy source for the entire power assembly. One end of the rotating shaft 702 is connected to the drive motor 701, and the other end is fixedly connected to the first synchronous pulley 703, thus realizing the transmission of power from the drive motor 701 to the rotating shaft 702. When the drive motor 701 starts, it provides power to the connecting shaft 4 through the transmission action of the rotating shaft 702, the first synchronous pulley 703, the synchronous belt 705, and the second synchronous pulley 704, thereby driving the preheating cylinder 2 to rotate. The synchronous belt 705 is made of high-strength, wear-resistant rubber, which has good transmission performance and a long service life.

[0029] The drive motor 701 is fixedly mounted on one side wall of the base 1. One end of the output shaft of the drive motor 701 is fixedly connected to one end of the rotating shaft 702. The drive motor 701 is a high-performance AC servo motor with high precision, high response speed, and good speed regulation performance. Its rated power is precisely matched according to the rotational load and heating requirements of the preheating cylinder 2 to ensure that it can maintain a stable operating speed while providing sufficient power. The drive motor 701 has built-in multiple safety protection mechanisms such as overload protection and overheat protection, which effectively prevent the motor from being damaged under abnormal operating conditions and improve the safety and reliability of the equipment. The drive motor 701 is fixedly mounted on one side wall of the base 1, serving as the energy source for the entire power system.

[0030] One end of the rotating shaft 702 is tightly connected to the output shaft of the drive motor 701 via a coupling, ensuring the accuracy and stability of power transmission. The other end of the rotating shaft 702 is fixedly connected to the first synchronous pulley 703, realizing the transmission of power from the drive motor 701 to the rotating shaft 702. The drive motor 701 is a Siemens 1LE0 series three-phase asynchronous motor (specific model such as 1LE0001-1DA23-3FA4). This series of motors is designed specifically for industrial applications and features high reliability, high efficiency, and good speed regulation performance. Its rated power, speed, and torque parameters are precisely matched according to the rotational load and heating requirements of the preheating cylinder 2.

[0031] Siemens 1LE0 series motors employ advanced electromagnetic design and manufacturing processes, boasting high efficiency (typically exceeding 90%), significantly reducing energy consumption and operating costs. The motors feature a built-in high-efficiency cooling system, ensuring stable performance output during extended operation and further extending motor lifespan. This series supports variable frequency speed control, allowing for precise adjustment of the preheating cylinder speed to meet the needs of various heating processes. With a wide speed range and fast response, it can quickly adapt to changes in the production process, improving production efficiency.

[0032] One of the connecting shafts 4 has a fixed connection to the outer wall of the air outlet pipe 8, which is connected to the air passage 5. It also includes a one-way valve 9, which is connected to the outer wall of the air outlet pipe 8. The air outlet pipe 8 is used to discharge excess steam or air from the preheating cylinder 2 and maintain stable pressure inside the cylinder. In addition, the one-way valve 9 is connected to the outer wall of the air outlet pipe 8 to ensure that steam or air can only flow out in one direction, preventing external air from flowing back into the preheating cylinder 2 and affecting the heating effect.

[0033] Working Principle: During operation, the steam generator 601 produces high-temperature steam, which is pressurized by the pump body 602 and then delivered to the conveying pipe 603. The steam is then transmitted through the insulated conveying pipe 603 to the air rotary joint 604, and then enters the semi-circular cylinder 3 inside the preheating cylinder 2 through the air passage 5. Since the semi-circular cylinders 3 are arranged in a ring array around the inner wall of the preheating cylinder 2, the steam can evenly heat the raw paper. Simultaneously, the drive motor 701 starts, and through the transmission action of the rotating shaft 702, the first synchronous pulley 703, the synchronous belt 705, and the second synchronous pulley 704, the preheating cylinder 2 is driven to rotate slowly. This rotation not only helps the corrugated cardboard to be heated evenly in the preheating cylinder 2, but also facilitates the feeding and unloading of the raw paper. During the heating process, excess steam or air is discharged from the preheating cylinder 2 through the exhaust pipe 8, while the one-way valve 9 ensures the one-way nature of the exhaust. Through this series of working processes, the peripheral heating cylinder achieves efficient and uniform heating of the corrugated cardboard.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A peripheral heating hot tank, characterized by, include: The base (1) and the preheating cylinder (2) are arranged in a ring array around the inner wall of the preheating cylinder (2). Several sets of semi-circular cylinders (3) are fixedly installed. The two ends of the preheating cylinder (2) are respectively fixedly connected to the connecting shaft (4). The connecting shaft (4) has a reserved air passage (5). Several sets of semi-circular cylinders (3) are connected to the air passage (5) inside the connecting shaft (4) through the preheating channel (10). One end of one set of the connecting shaft (4) is connected to a heating source mechanism (6). The base (1) is provided with a power assembly on one side wall to provide power to the connecting shaft (4) so ​​as to rotate the preheating cylinder (2).

2. The peripheral heated vat of claim 1, wherein: The heating source mechanism (6) includes a steam generator (601), a pump body (602) is fixedly connected to one side of the steam generator (601), a delivery pipe (603) is fixedly connected to one end of the pump body (602), a gas path rotary joint (604) is fixedly connected to one end of the delivery pipe (603), and the gas path rotary joint (604) is connected to the gas passage (5) inside one of the connecting shafts (4).

3. The peripheral heated vat of claim 2, wherein: The outer wall of the conveying pipe (603) is covered with thermal insulation material.

4. The peripheral heated vat of claim 1, wherein: The power assembly includes a drive motor (701), a rotating shaft (702), a first synchronous pulley (703), a second synchronous pulley (704), and a synchronous belt (705). One end of the rotating shaft (702) is connected to the drive motor (701), and the other end of the rotating shaft (702) is fixedly connected to the first synchronous pulley (703). The second synchronous pulley (704) is fixedly sleeved on the outer wall of the connecting shaft (4). The first synchronous pulley (703) and the second synchronous pulley (704) are connected by a synchronous belt (705).

5. The peripheral heated vat of claim 4, wherein: The drive motor (701) is fixedly installed on one side wall of the base (1), and one end of the output shaft of the drive motor (701) is fixedly connected to one end of the rotating shaft (702).

6. The peripheral heated vat of claim 1, wherein: One of the connecting shafts (4) has an air outlet pipe (8) fixedly connected to its outer wall, and the air outlet pipe (8) is connected to the air passage (5).

7. The peripheral heated vat of claim 1, wherein: It also includes a one-way valve (9), which is connected to the outer wall of the air outlet pipe (8).

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