A waste carbon fiber felt recycling and crushing device

Abstract

The utility model relates to the technical field of waste carbon fiber material recovery, specifically relates to a kind of waste carbon fiber felt recycling crushing device, the device includes feed hopper, crushing box and discharge port, a pair of crushing wheel groups are equipped in crushing box, respectively by first crushing wheel and second crushing wheel are formed, the side wall is respectively equipped with base wheel plate and crushing ring cutter, base blade plate with side blade is equipped in the both sides of crushing ring cutter, and it is detachably connected by screw part, modular replacement is realized.The first crushing wheel and the second crushing wheel adopt differential rotation mode, improve shear force and crushing efficiency, and the spiral blade design enhances multidirectional shearing effect.The utility model is compact in structure, high in crushing efficiency, uniform in granularity, convenient to maintain, suitable for efficient crushing and recovery of waste carbon fiber felt, and has good resource utilization prospect.

Description

Technical Field

[0001] This utility model relates to the field of waste carbon fiber material recycling technology, specifically to a waste carbon fiber felt recycling and crushing device. Background Technology

[0002] The information disclosed in the background section of this utility model is intended only to enhance the understanding of the overall background of this utility model, and is not necessarily to be regarded as an admission or in any way implying that the information constitutes prior art known to those skilled in the art.

[0003] Carbon fiber felt is a thermal insulation material made from carbon fiber, widely used in the thermal insulation of high-temperature kilns and furnaces. However, during its production and use, the thermal insulation performance of the felt fibers deteriorates, and processing generates a significant amount of waste. Direct disposal of this waste would result in a huge waste of resources. To achieve high-value resource utilization of carbon fiber waste, it is necessary to crush the waste carbon fiber felt for subsequent processing and utilization.

[0004] Existing technology includes Chinese patent CN113546737B, which discloses a non-woven fabric crushing device and its crushing method, including a support box, a first motor, a rotating wheel, a cutter, a fixed box, a conveyor belt, a transverse cutting device, and a material feeding device. Although it has the function of crushing waste carbon fiber felt, in actual processing, it still suffers from poor crushing efficiency and uneven particle size of the crushed products, which seriously affects the subsequent recycling effect. At the same time, the device has a complex structure, which increases production costs and makes it difficult to meet the requirements of high efficiency and low cost. Utility Model Content

[0005] In order to solve the technical problems mentioned in the background, this utility model provides a waste carbon fiber felt recycling and crushing device, which aims to solve the problems of low crushing efficiency, poor uniformity and complex structure of waste carbon fiber felt in the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A waste carbon fiber felt recycling and crushing device includes a feed hopper, a crushing box and a discharge port. The crushing box is provided with at least one pair of crushing wheel sets. The crushing wheel sets include a first crushing wheel and a second crushing wheel. The first crushing wheel and the second crushing wheel are respectively provided with a first drive wheel and a second drive wheel.

[0008] The first crushing wheel has several base wheel plates on its arc-shaped sidewall, and a crushing groove is formed between two adjacent base wheel plates.

[0009] The second crushing wheel has a crushing ring cutter on its arc-shaped sidewall that is adapted to the crushing groove. The crushing ring cutter includes a cutter plate, and the cutter plate has several side blades on both sides that cooperate with the base wheel plate for crushing.

[0010] Preferably, the arc-shaped sidewall of the base plate is provided with teeth or friction patterns to enhance the squeezing and downward conveying effect of waste carbon fiber felt.

[0011] Preferably, the side blade is a helical blade, used to provide multi-directional shearing force as it rotates with the second crushing wheel.

[0012] Preferably, the side blades on both sides of each blade are disposed on a corresponding base blade plate, and both the base blade plate and the blade plate are provided with corresponding fixing holes, and are connected and fixed by a mating threaded fastener.

[0013] Preferably, the base blade plate includes at least two or more arc-shaped plates.

[0014] Preferably, the first drive wheel and the second drive wheel mesh with each other and rotate at different speeds.

[0015] Preferably, the diameter of the first drive wheel is larger than the diameter of the second drive wheel.

[0016] Preferably, the system further includes a main drive gear that meshes with the first drive wheel, the diameter of which is larger than the diameter of the first drive wheel and the second drive wheel.

[0017] This utility model has at least the following beneficial effects:

[0018] This invention improves the dual effect of shearing and compression crushing by embedding the blades and side edges of the crushing ring into the crushing groove between adjacent base plates, thereby increasing the processing capacity per unit time. Furthermore, the side edge design allows for secondary crushing of the edge portions during primary crushing, reducing large residues, effectively controlling the consistency of the output particle size, and improving the overall uniformity of the material, which is beneficial for subsequent processing and utilization. At the same time, the device has a simple structure, is easy to maintain and operate, thus reducing overall production and operating costs.

[0019] In this invention, the side blades of the crushing ring cutter adopt a helical blade design, which can apply shearing force to the material from multiple directions during rotation. This multi-directional shearing helps to achieve finer and more uniform crushing particle size, which is beneficial to subsequent processing.

[0020] This invention enhances the gripping and downward conveying ability of carbon fiber felt by designing toothed or friction textures on the surface of the base wheel plate. Combined with the multi-directional shearing of the spiral blade and the differential shearing mechanism, it further improves the crushing efficiency and makes the fiber particle size more uniform after crushing.

[0021] Compared to the complex crushing devices in existing technologies, this invention has a simpler and more rational overall structure, with fewer parts and lower assembly difficulty. Furthermore, the modular design reduces later maintenance costs, resulting in a more advantageous overall production and operating cost. Attached Figure Description

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

[0023] Figure 2 This is a schematic diagram of the overall structure of the second crushing wheel;

[0024] Figure 3 This is a partial structural diagram of the second crushing wheel;

[0025] Figure 4 This is a schematic diagram of the base blade plate.

[0026] Figure 5 This is a schematic diagram of the first crushing wheel.

[0027] The reference numerals used in the attached figures are as follows:

[0028] 100. Feed hopper; 200. Crushing box; 300. Discharge port; 400. Second drive wheel; 410. Second crushing wheel; 420. Crushing ring cutter; 421. Blade plate; 422. Side blade; 4221. Base blade plate; 423. Fixing hole; 500. First drive wheel; 510. First crushing wheel; 520. Base wheel plate; 530. Crushing trough; 600. Main drive gear. Detailed Implementation

[0029] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] Figures 1 to 5 A waste carbon fiber felt recycling and crushing device is presented, which mainly consists of a feed hopper 100, a crushing box 200 and a discharge port 300.

[0031] Inside the crushing box 200, at least one pair of crushing wheel sets are provided. Each crushing wheel set includes a first crushing wheel 510 and a second crushing wheel 410, and the first crushing wheel 510 and the second crushing wheel 410 are respectively equipped with a first drive wheel 500 and a second drive wheel 400.

[0032] The first crushing wheel 510 has several base wheel plates 520 evenly distributed on its arc-shaped sidewall, forming a crushing groove 530 between adjacent base wheel plates 520. The second crushing wheel 410 has crushing ring cutters 420 precisely fitted to the crushing groove 530 installed on its arc-shaped sidewall. The cutter plates 421 of the crushing ring cutters 420 have multiple side blades 422 on both sides. These side blades 422 can work in conjunction with the base wheel plates 520 to achieve efficient crushing of waste carbon fiber felt.

[0033] The base plate 520 has serrated or other friction patterns on its arc-shaped sidewalls. By increasing surface friction, it can more effectively compress waste carbon fiber felt and convey it downwards, significantly improving crushing efficiency and quality. The side blade 422 adopts a spiral blade design. During the rotation of the second crushing wheel 410, the spiral blade can apply shearing force to the waste carbon fiber felt from multiple directions, further enhancing the crushing effect.

[0034] Since the side blades 422 are consumable parts, to facilitate their replacement, the side blades 422 on both sides of each blade plate 421 are mounted on corresponding base blade plates 4221. Both the base blade plates 4221 and the blade plates 421 have corresponding fixing holes 423, and are connected and fixed by threaded fasteners. This design effectively modularizes the side blades 422. Thus, when a side blade 422 is severely damaged, it is no longer necessary to replace the entire second crushing wheel 410; only the corresponding base blade plate 4221 needs to be replaced, greatly improving maintenance efficiency and reducing costs.

[0035] To further facilitate installation, the base blade plate 4221 includes at least two arc plates. For example, when two arc plates are joined together to form a base blade plate 4221, the arc plates are semi-circular ring plates. Similarly, three or more arc plates can be joined together to form a base blade plate 4221. In this way, the side blade 422 is further modularized, and the installation problem is solved.

[0036] To further optimize the crushing effect, the first drive wheel 500 and the second drive wheel 400 adopt a differential rotation method to improve the shearing force and crushing effect. Specifically, this differential rotation creates a speed difference between the first crushing wheel 510 and the second crushing wheel 410. Combined with their crushing structures, this generates a dynamic misaligned shearing force: the spiral side blade 422 on the second crushing wheel 410, which rotates at a higher speed, interacts with the base plate 520 of the first crushing wheel 510, which rotates at a lower speed, to perform both tearing and shearing crushing on the carbon fiber felt sandwiched in between. This greatly improves the crushing efficiency and effectively avoids the problem of fiber felt squeezing and slipping.

[0037] The specific settings for differential rotation are as follows: the first drive wheel 500 and the second drive wheel 400 are directly meshed, and their diameters are set differently. Since the gear with the larger diameter has a lower speed and the gear with the smaller diameter has a higher speed, a natural speed difference is formed. Moreover, the difference in diameter can also adjust the torque distribution between the two. The first drive wheel 500 has a larger diameter and transmits more torque, which is suitable for driving the base wheel plate 520 to bear the main extrusion and conveying load; the second drive wheel 400 has a smaller diameter and a higher speed, which is suitable for driving the crushing ring cutter 420 to bear the high-frequency shearing load. The division of labor is clear, reducing the internal friction of the equipment.

[0038] The power transmission of the crushing wheel assembly is as follows: the first drive wheel 500 and the second drive wheel 400 mesh with each other, and a main drive gear 600 meshes with the first drive wheel 500. The main drive gear 600 has a large diameter and not only undertakes the power transmission function, but also acts as a flywheel to ensure the stability of power output.

[0039] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0040] The terms "upper," "lower," "outer," "inner," etc., used in the specification, claims, and accompanying drawings of this utility model, are used to distinguish relative positional relationships and are not necessarily qualitative. It should be understood that such data can be interchanged where appropriate so that embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A waste carbon fiber felt recycling and crushing device, comprising a feed hopper, a crushing box, and a discharge port, wherein at least one pair of crushing wheel sets are provided in the crushing box, the crushing wheel sets comprising a first crushing wheel and a second crushing wheel, the first crushing wheel and the second crushing wheel being respectively provided with a first drive wheel and a second drive wheel; characterized in that: The first crushing wheel has several base wheel plates on its arc-shaped sidewall, and a crushing groove is formed between two adjacent base wheel plates. The second crushing wheel has a crushing ring cutter on its arc-shaped sidewall that is adapted to the crushing groove. The crushing ring cutter includes a cutter plate, and the cutter plate has several side blades on both sides that cooperate with the base wheel plate for crushing.

2. The waste carbon fiber felt recycling and crushing device as described in claim 1, characterized in that: The arc-shaped sidewall of the base plate is provided with toothed or frictional patterns to enhance the squeezing and downward conveying effect of waste carbon fiber felt.

3. The waste carbon fiber felt recycling and crushing device as described in claim 1, characterized in that: The side blade is a helical blade used to provide multi-directional shearing force as it rotates with the second crushing wheel.

4. The waste carbon fiber felt recycling and crushing device as described in claim 1, characterized in that: The side blades on both sides of each blade are set on the corresponding base blade plate. The base blade plate and the blade plate are provided with corresponding fixing holes and are connected and fixed by mating threaded fasteners.

5. The waste carbon fiber felt recycling and crushing device as described in claim 4, characterized in that: The base blade plate includes at least two or more arc-shaped plates.

6. The waste carbon fiber felt recycling and crushing device as described in claim 1, characterized in that: The first drive wheel and the second drive wheel mesh with each other and rotate at different speeds.

7. The waste carbon fiber felt recycling and crushing device as described in claim 6, characterized in that: The diameter of the first drive wheel is larger than the diameter of the second drive wheel.

8. The waste carbon fiber felt recycling and crushing device as described in claim 7, characterized in that: It also includes a main drive gear that meshes with the first drive wheel, the diameter of which is larger than that of the first drive wheel and the second drive wheel.

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