Interlocking type efficient spoiler rod of drying cylinder

Abstract

The utility model discloses a mutually-buckled type efficient spoiler rod of a drying cylinder, which relates to the technical field of papermaking machinery and comprises a spoiler rod made of stainless steel U-shaped cold-bending equilateral channel steel and a support ring, the turbulent flow bars are evenly distributed in the circumferential direction of the drying cylinder, and the supporting rings are evenly distributed in the transverse direction of the drying cylinder. Wherein the spoiler rod and the supporting ring are provided with positioning clamping grooves respectively, positioning is achieved through mutual meshing of the positioning clamping grooves in the assembling process, and U-shaped groove openings are opposite and form an angle of 90 degrees in the installing process, so that the spoiler rod and the supporting ring are locked in the circumferential direction and the transverse direction of the drying cylinder after being clamped into each other. According to the technical scheme provided by the utility model, the turbulent flow rod and the supporting ring are quickly aligned through the mutual buckling type clamping groove, an additional fixing pin structure is not needed, the installation process is simplified, and the assembly efficiency is improved. And a stainless steel material is adopted, so that the structural strength is ensured, the overall weight is greatly reduced, the required tensile force is remarkably reduced, the operation load is reduced, and the stability and the safety of a system are improved.

Description

Technical Field

[0001] This utility model relates to the field of papermaking machinery technology, and in particular to an interlocking high-efficiency drying cylinder baffle. Background Technology

[0002] Baffles are used in paper machine drying cylinders to create a water ring. During the papermaking process, the baffles are located inside the drying cylinder and improve heat transfer and condensate drainage, thereby increasing heat transfer rate and achieving good drying uniformity.

[0003] The baffles generate resonant waves by disturbing the condensate film within the drying cylinder, breaking the laminar flow and significantly enhancing heat transfer efficiency, thereby increasing drying speed and paper machine capacity. Furthermore, the baffles ensure uniform drying of the horizontal sections, reducing localized over-drying or under-drying by evenly distributing heat, improving the consistency of finished product quality, and preventing problems such as curling and breakage.

[0004] The baffles are typically stainless steel rectangular tubes fitted with carbon steel support plates. A varying number of rectangular baffles, depending on the size of the drying cylinder, are evenly distributed around the circumference of the drying cylinder, running horizontally through it and affixed to the inner wall of the cylinder. Several carbon steel support rings are evenly distributed along the horizontal direction of the drying cylinder. Annular plates made of rolled carbon steel sheets are fixed to the baffles by pins. Each support ring is divided into different equal parts according to the size of the drying cylinder, and tension bolts are used to generate outward radial force, which is transmitted to each baffle, enabling the baffles to rotate synchronously with the drying cylinder.

[0005] As paper machine speeds and widths increase, this type of baffle bar structure generates numerous problems. Because the support ring and baffle bars are positioned using fixed pins, the support ring itself is very heavy to ensure the mating surface dimensions and stabilize the pins. Although it can withstand significant tension, its excessive weight leads to increased gaps between the fixed pins and support rings after prolonged operation and increased machine speed. This causes vibration, disrupting the internal balance of the drying cylinder. This results in tension failure, causing circumferential and horizontal displacement among the baffle bars. The drying cylinder's operating accuracy deviates, affecting normal paper output. In severe cases, the baffle bars may detach from the support ring, damaging the drying cylinder and causing a safety hazard. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an interlocking high-efficiency drying cylinder baffle bar to solve the problems in the background art.

[0007] In view of this, the present invention provides an interlocking high-efficiency drying cylinder baffle bar, comprising a baffle bar and a support ring made of stainless steel U-shaped cold-bent equilateral channel steel.

[0008] The baffles are evenly distributed along the circumference of the drying cylinder, and the support rings are evenly distributed along the horizontal direction of the drying cylinder.

[0009] The baffle and the support ring are respectively provided with positioning slots. During assembly, the positioning slots interlock to achieve positioning. During installation, the U-shaped slots are opposite each other and form a 90-degree angle, so that the baffle and the support ring are locked in the circumference and horizontal direction of the drying cylinder after they are interlocked.

[0010] Optionally, the circumferential segment of the support ring is divided into 4-12 equal parts, and the arc length of each segment is equal.

[0011] Optionally, several equally divided support rings are connected by tension bolts to form an annular structure, which ensures that the turbulence bar and the support ring are engaged and closely attached to the cylinder surface, and rotate synchronously with the drying cylinder.

[0012] Optionally, the bottom thickness of the stainless steel U-shaped cold-formed equal-sided channel steel is 2-4mm, and the sidewall thickness is 1.5-3mm.

[0013] Optionally, the axial direction of the tensioning bolt forms a 30-60° angle with the radial direction of the drying cylinder.

[0014] Optionally, the contact surface between the turbulence bar and the support ring is provided with anti-slip texture.

[0015] Optionally, the stainless steel U-shaped cold-formed equal-sided channel steel is made of 304 or 316L stainless steel through a cold-forming process.

[0016] As can be seen from the above technical solutions, the embodiments of this utility model have the following advantages:

[0017] 1. This utility model discloses an interlocking high-efficiency drying cylinder baffle bar. The baffle bar and support ring are quickly aligned via interlocking slots, eliminating the need for additional fixing pins, simplifying the installation process and improving assembly efficiency. Furthermore, the use of 304 or 316L stainless steel ensures structural strength while significantly reducing overall weight, thereby substantially reducing the required tension, lightening the operating load, and enhancing the system's stability and safety.

[0018] 2. This utility model discloses an interlocking high-efficiency drying cylinder baffle rod, which forms a complete ring with the support ring by tensioning bolts and fits tightly against the inner wall of the drying cylinder to ensure synchronous rotation. The tensioning bolts are designed to form a 30° to 60° angle with the radial direction of the drying cylinder, which effectively enhances the radial pressure transmission efficiency and avoids vibration caused by local imbalance.

[0019] 3. This utility model discloses an interlocking high-efficiency drying cylinder baffle. As the drying cylinder rotates, the baffle drives the condensate film to move, breaking the laminar flow and forming a water ring resonance wave, accelerating moisture discharge and improving heat transfer efficiency. Simultaneously, the baffle is evenly distributed along the circumference and horizontal direction, contributing to uniform heat distribution, improving paper drying consistency, reducing paper defects such as curling and tearing, and increasing yield and product quality.

[0020] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This utility model Figure 1 Schematic diagram of the cross-sectional structure of the middle AA section;

[0024] Figure 3 This utility model Figure 2 Enlarged structural diagram at point B;

[0025] Figure 4 This is a schematic diagram of the structure of a conventional drying cylinder baffle, used for comparison in this application.

[0026] Explanation of reference numerals in the attached diagram: 1. Baffle bar; 2. Support ring; 21. Positioning slot; 3. Tensioning bolt. Detailed Implementation

[0027] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0028] The following describes in detail, with reference to the accompanying drawings, an interlocking high-efficiency drying cylinder baffle of this utility model.

[0029] Example

[0030] For easier understanding, please refer to Figures 1 to 4 An embodiment of the interlocking high-efficiency drying cylinder baffle provided by this utility model includes a baffle 1 made of stainless steel U-shaped cold-bent equilateral channel steel and a support ring 2.

[0031] The turbulence bar 1 is evenly distributed along the circumference of the drying cylinder, and the support ring 2 is evenly distributed along the horizontal direction of the drying cylinder.

[0032] The baffle rod 1 and the support ring 2 are each provided with a positioning groove 21. During assembly, the positioning grooves 21 interlock to achieve positioning. During installation, the U-shaped openings face each other and form a 90-degree angle, so that the baffle rod 1 and the support ring 2 are locked together in the circumference and horizontal direction of the drying cylinder. The stainless steel U-shaped cold-formed equal-sided channel steel is made of 304 or 316L stainless steel through a cold-forming process.

[0033] It should be noted that the U-shaped cold-formed equilateral channel steel is made of 304 or 316L stainless steel using a cold-bending process. This material selection not only ensures sufficient strength for the baffle bar 1 and support ring 2 but also meets the requirements for lightweight design. The baffle bar 1 is evenly distributed along the circumference of the drying cylinder, and the support ring 2 is evenly distributed along the horizontal direction of the drying cylinder. Each component is equipped with a positioning slot 21 to facilitate engagement during assembly. Specifically, during installation, the U-shaped slots face each other at a 90-degree angle, which helps to lock the baffle bar 1 and support ring 2 together, ensuring their stability.

[0034] In some embodiments, the circumferential division of the support ring 2 is 4-12 equal parts, with each segment having an equal arc length. The several equal parts of the support ring 2 are connected by tension bolts 3 to form a ring structure, which ensures that the baffle rod 1 engages with the support ring 2 while remaining in close contact with the cylinder surface and rotating synchronously with the drying cylinder.

[0035] It should be noted that the support ring 2 is divided into 4-12 equal segments, each with an equal arc length. These segments are connected by tension bolts 3 to form a complete ring structure. This is to further optimize structural stability.

[0036] In some embodiments, the bottom thickness of the stainless steel U-shaped cold-formed equal-sided channel steel is 2-4 mm, and the sidewall thickness is 1.5-3 mm.

[0037] It should be noted that the bottom thickness of the stainless steel U-shaped cold-formed equal-sided channel steel is controlled between 2-4mm, and the side wall thickness is 1.5-3mm, to ensure the stability and durability of the structure.

[0038] In some embodiments, the axial direction of the tensioning bolt 3 forms an angle of 30-60° with the radial direction of the drying cylinder.

[0039] It should be noted that the axial direction of the tensioning bolt 3 forms a 30-60° angle with the radial direction of the drying cylinder. This can effectively transmit the radial force to each of the turbulence bars 1, ensuring that they can fit tightly against the inner wall of the drying cylinder and rotate synchronously with the drying cylinder.

[0040] The contact surface between the baffle rod 1 and the support ring 2 is provided with anti-slip texture. This prevents slippage during operation. The anti-slip texture can be an embossed pattern, a frosted pattern, etc., effectively improving the overall stability of the system and reducing the risk of internal imbalance caused by vibration.

[0041] Working Principle: The interlocking high-efficiency drying cylinder baffle bar 1 is made of stainless steel U-shaped cold-formed equilateral channel steel. Its snap-fit ​​structure achieves a compact design and high reliability. Due to its lightweight and high strength, the entire system weight is less than 30% of traditional designs, significantly reducing the required tension and operating load, and improving system stability and safety. Furthermore, this structure eliminates component loosening caused by gaps, preventing vibration from affecting the internal balance of the drying cylinder and further ensuring long-term stable operation. The anti-slip textured design increases friction on the contact surfaces, effectively preventing relative sliding between components and improving overall stability. This optimization not only reduces production costs but also improves the paper machine's capacity and paper quality consistency, making it suitable for the application requirements of modern high-speed, wide-width paper machines.

[0042] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An interlocking high-efficiency drying cylinder baffle, characterized in that: Including a baffle bar (1) and a support ring (2) made of stainless steel U-shaped cold-formed equilateral channel steel; The turbulence bar (1) is evenly distributed along the circumference of the drying cylinder, and the support ring (2) is evenly distributed along the horizontal direction of the drying cylinder; The turbulence bar (1) and the support ring (2) are respectively provided with positioning slots (21). During assembly, the positioning slots (21) interlock with each other to achieve positioning. During installation, the U-shaped slots are opposite each other and form a 90-degree angle, so that the turbulence bar (1) and the support ring (2) are locked in the circumference and horizontal direction of the drying cylinder after they are interlocked.

2. The interlocking high-efficiency drying cylinder baffle bar according to claim 1, characterized in that: The circumferential segment of the support ring (2) is divided into 4-12 equal segments, and the arc length of each segment is equal.

3. The interlocking high-efficiency drying cylinder baffle bar according to claim 2, characterized in that: The support rings (2) of several equal parts are connected by tension bolts (3) to form a ring structure, which is used to ensure that the turbulence bar (1) and the support ring (2) are engaged and closely attached to the cylinder surface, and rotate synchronously with the drying cylinder.

4. The interlocking high-efficiency drying cylinder baffle bar according to claim 1, characterized in that: The bottom thickness of the stainless steel U-shaped cold-formed equal-sided channel steel is 2-4mm, and the sidewall thickness is 1.5-3mm.

5. The interlocking high-efficiency drying cylinder baffle bar according to claim 3, characterized in that: The axial direction of the tensioning bolt (3) forms a 30-60° angle with the radial direction of the drying cylinder.

6. The interlocking high-efficiency drying cylinder baffle bar according to claim 1, characterized in that: The contact surface between the turbulence bar (1) and the support ring (2) is provided with anti-slip texture.

7. The interlocking high-efficiency drying cylinder baffle bar according to claim 1, characterized in that: The stainless steel U-shaped cold-formed equal-sided channel steel is made of 304 or 316L stainless steel through a cold-forming process.

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