A heat-crushing system for recycling waste high-temperature-resistant filter bags

Abstract

A thermal crushing system for recycling waste high-temperature resistant filter bags includes a cross-cutting roller group, a special-punching roller group, a conveying roller group, and a stripping roller arranged sequentially. The cross-cutting roller comprises a cross-cutting cylinder with convex and concave rings connected sequentially along the axial direction. A convex ring cavity within the convex ring is connected to a transverse ventilation hole on the convex ring. A concave ring cavity is also formed inside the concave ring. At least one of the first and last transverse shafts has a transverse shaft cavity connected to the cross-cutting cylinder cavity. A cross-cutting ring is embedded around the concave ring, and multiple cross-cutting blades are fixedly connected to the top of the cross-cutting ring. The blades of the cross-cutting blades are perpendicular to the central axis of the cross-cutting roller. During application, hot air is circulated within the cross-cutting cylinder cavity to create a thermal environment. The waste high-temperature resistant filter bags sequentially pass through the cross-cutting roller group, the special-punching roller group, the conveying roller group, and the stripping roller, generating recycled fibers. This design not only offers superior recycling efficiency and high adjustability but also boasts high working efficiency and low processing costs.

Description

Technical Field

[0001] This invention relates to a recycling system for waste high-temperature resistant filter bags, belonging to the field of waste recycling, and particularly to a thermal crushing system for recycling waste high-temperature resistant filter bags. Background Technology

[0002] High-temperature resistant filter fiber materials, such as high-temperature resistant filter bags, are used in environments requiring high-temperature flue gas filtration, such as thermal power generation, cement, coal, steel, and waste incineration. Filter bags made from high-temperature resistant filter fiber materials are suitable for operating temperatures ranging from room temperature to 300℃, and can be used for filtering both coarse and fine dust. They effectively filter PM2.5, improve the atmospheric environment, and have good filtration performance.

[0003] However, during the filtration process, the filter bag will block and adhere to various particles, thus forming a highly adhesive filter residue, causing the filter bag to lose its filtration performance. For discarded high-temperature resistant filter bags that have lost their filtration efficiency, the existing technology cannot remove the filter residue on the filter bag in an environmentally friendly manner, which greatly hinders the recycling and reuse of discarded high-temperature resistant filter bags, especially large-scale recycling or reuse.

[0004] The information disclosed in this background section is intended only to enhance understanding of the overall background of this application and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to overcome the defects and problems of poor recycling effect in the existing technology, and to provide a thermal crushing system for recycling waste high-temperature resistant filter bags with better recycling effect.

[0006] To achieve the above objectives, the technical solution of the present invention is: a thermal crushing system for recycling waste high-temperature resistant filter bags, comprising a cross-cutting roller group, a special piercing roller group, a conveying roller group, and a stripping roller arranged in sequence. The cross-cutting roller group includes two cross-cutting rollers arranged vertically opposite each other. The special piercing roller group includes two special piercing rollers arranged vertically opposite each other. The conveying roller group includes a large conveying roller and a small conveying roller arranged above it. The stripping roller is located near the right side of the large conveying roller.

[0007] The input end of the cross-cutting roller group is connected to the input end of the conveying roller group via the special piercing roller group, and the output end of the conveying roller group is connected to the input end of the peeling roller.

[0008] The cross-cutting roller includes a cross-cutting cylinder and a cross-head disc and a cross-tail disc connected to its two ends. The cross-head disc and the cross-tail disc are respectively connected to the corresponding cross-head shaft and the cross-tail shaft. The cross-cutting cylinder includes a transverse convex ring portion and a transverse concave ring portion connected sequentially along the axial direction. The transverse convex ring portion has a corresponding transverse convex ring cavity inside, which is connected to the transverse vent hole opened on the transverse convex ring portion. The transverse concave ring portion has a corresponding transverse concave ring cavity inside. All the transverse convex ring cavities and transverse concave ring cavities are connected sequentially at intervals to form a cross-cutting cylinder cavity. At least one of the cross-head shaft and the transverse tail shaft has a transverse shaft cavity inside to communicate with the cross-cutting cylinder cavity.

[0009] A transverse cutting ring is embedded and connected to the periphery of the transverse concave ring. Multiple transverse cutting blades are fixedly connected to the top of the transverse cutting ring, and the cutting edge of the transverse cutting blade is perpendicular to the central axis of the transverse cutting roller.

[0010] The transverse cutting ring includes at least two transverse cutting arc blocks, and all the transverse cutting arc blocks are connected in sequence to form the same transverse cutting ring; both ends of the transverse cutting arc blocks are fixedly connected to the transverse concave ring portion, the top of the transverse cutting arc blocks are connected to the bottom end of the transverse cutting blade shaft, and the top end of the transverse cutting blade shaft is threadedly connected to the bottom of the transverse cutting blade.

[0011] The transverse ring includes four identical transverse arc blocks, each with an arc of 90 degrees. Each end of the transverse arc block has a transverse block hole, and the transverse concave ring part has multiple transverse ring holes, which are connected to the corresponding transverse block holes by transverse bolts.

[0012] The special piercing roller includes a special piercing cylinder and a special piercing head disc and a special piercing tail disc connected to its two ends. The special piercing cylinder has a special piercing cylinder cavity inside. The special piercing head disc and the special piercing tail disc are respectively connected to the corresponding special piercing head shaft and special piercing tail shaft. At least one of the special piercing head shaft and the special piercing tail shaft has a special piercing shaft cavity inside to communicate with the cross-cutting cylinder cavity.

[0013] The special-purpose piercing cylinder includes special-purpose protrusions and special-purpose concave portions that are connected in a radially spaced manner. A special-purpose piercing strip is embedded and connected to the side wall of the special-purpose concave portion. Multiple special-purpose roller piercings are provided on the top of the special-purpose piercing strip. The bottom end of the special-purpose roller piercings is connected to the top of the special-purpose piercing strip, and the top end of the special-purpose roller piercings extends upward. A special-purpose vent hole is provided in the special-purpose protrusion to communicate with the cavity of the special-purpose piercing cylinder.

[0014] Each end of the special barb is provided with a special long bar hole, and each end of the special long recess is provided with a special concave hole. The special concave holes are connected to the corresponding special long bar holes by special long bolts.

[0015] The special roller has a conical structure that is narrow at the top and wide at the bottom.

[0016] A matching small spiked roller is provided on the side of the small conveying roller to cooperate with the large conveying roller; the small spiked roller includes a small spiked cylinder and small spiked head discs and small spiked tail discs connected to its two ends. The small spiked cylinder has a small spiked cylinder cavity inside. The small spiked head disc and small spiked tail disc are respectively connected to the corresponding small spiked head shaft and small spiked tail shaft. At least one of the small spiked head shaft and small spiked tail shaft has a small spiked shaft cavity inside to communicate with the small spiked cylinder cavity.

[0017] The small barb tube includes small elongated protrusions and small elongated recesses connected in a radially spaced manner. A small barb is embedded in the small elongated recess. The top of the small barb is provided with multiple small roller barbs. The bottom end of the small roller barb is connected to the top of the small barb, and the top end of the small roller barb extends upward. A small elongated vent hole is opened in the small elongated protrusion to communicate with the cavity of the small barb tube.

[0018] The number of small conveying rollers is three, the number of small barbed rollers is three, and the rightmost group of small conveying rollers and small barbed rollers is located close to the stripping roller.

[0019] The distribution density of small roller burrs on the small conveying roller is greater than the distribution density of special roller burrs on the special burr roller.

[0020] The side of the large conveying roller is provided with a plurality of evenly distributed conveying protrusions, and a conveying block gap is formed between adjacent conveying protrusions.

[0021] The sidewall of the small conveying roller is provided with a plurality of evenly distributed blunt protrusions, and a gap between adjacent blunt protrusions is formed.

[0022] The peeling roller has multiple parallel peeling rings arranged along its axial direction on its sidewall. There are spacer rings between adjacent peeling rings. Each peeling ring includes multiple peeling handles evenly arranged along the same circumference. Each peeling handle includes a peeling vertical plate and a peeling horizontal plate. The bottom end of the peeling vertical plate is connected to the sidewall of the peeling roller, and the top end of the peeling vertical plate is connected to the inner side of the peeling horizontal plate. The peeling horizontal plate extends laterally along the axial direction of the peeling roller, and peeling teeth are provided on the outer side of the peeling horizontal plate.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. The present invention provides a thermal crushing system for recycling waste high-temperature resistant filter bags, comprising a cross-cutting roller group, a special-punching roller group, a conveying roller group, and a stripping roller arranged sequentially. The input end of the cross-cutting roller group is connected to the input end of the conveying roller group via the special-punching roller group, and the output end of the conveying roller group is connected to the input end of the stripping roller. The cross-cutting roller includes a cross-cutting cylinder and a cross-head and a cross-tail disc connected at both ends. The cross-cutting cylinder includes a transverse convex ring portion and a transverse concave ring portion connected sequentially along the axial direction. The transverse convex ring portion has a corresponding transverse convex ring cavity, which is connected to a transverse vent hole on the transverse convex ring portion. The transverse concave ring portion has a corresponding transverse concave ring cavity. All the transverse convex and concave ring cavities are sequentially connected to form a cross-cutting cylinder cavity. At least one of the transverse head and tail shafts has a transverse shaft cavity connected to the cross-cutting cylinder cavity. A cross-cutting ring is embedded and connected to the periphery of the transverse concave ring portion, and the top of the cross-cutting ring is fixed... The system is equipped with multiple cross-cutting blades, the blades of which are perpendicular to the central axis of the cross-cutting roller. During application, the waste high-temperature resistant filter bags to be processed sequentially pass through the cross-cutting roller group, the special-punching roller group, the conveying roller group, and the peeling roller, generating regenerated fibers for subsequent recycling. The cross-cutting roller group and the special-punching roller group primarily tear and crush the waste high-temperature resistant filter bags or their intermediate products. The conveying roller group primarily transports the materials, and the peeling roller primarily peels the generated regenerated fibers from the large conveying roller. During the processing of the cross-cutting roller group, hot air can be supplied to the cross-cutting cylinder cavity through the transverse shaft cavity to raise the overall temperature of the cross-cutting roller group, thus providing a thermal environment for processing. Furthermore, the hot air can be released through the transverse vents to enhance the thermal environment effect. Releasing humid hot air further improves the thermal environment effect. The advantages of this design are as follows:

[0025] First, the created thermal environment can soften the filter residue to a certain extent, reduce or break down the clumps, and form a certain degree of dispersion with viscosity and flexibility. This facilitates the tearing of the filter bag by the cross-cutting roller group, as well as the subsequent special piercing roller group, conveying roller group, and peeling roller. This makes it easier to tear apart the fiber clumps, slide and separate the fibers, which is beneficial to obtaining recycled fibers with a high degree of dispersion. This facilitates subsequent recycling, such as its application in concrete mixing, and can also increase production, thereby enhancing the overall recycling effect. The effect is even better when the temperature of the thermal environment is close to the temperature of the flue gas filtered by the filter bag.

[0026] Secondly, in the process of obtaining regenerated fibers, this design does not remove the filter residue adhering to the high-temperature resistant filter bag, but retains it, thereby avoiding the problem of processing filter residue in the existing technology, which is conducive to improving work efficiency and reducing processing costs.

[0027] Furthermore, the recycled fiber obtained by this design includes high-temperature resistant fiber and the filter residue attached to it. This product structure is conducive to the subsequent use of recycled fiber. For example, the recycled fiber can be mixed into concrete. In this way, heat will be generated during the curing process of concrete. This heat will give the filter residue a certain thermal fluidity. The flowing filter residue can flow and fill the gaps or holes in the concrete, and can also fill the air bubbles and cracks formed around the pure fiber, which is more conducive to the compactness of concrete products.

[0028] Fourth, the filter residue in the recycled fiber is loaded on the high-temperature resistant fiber, and in most cases the high-temperature resistant fiber is included in the filter residue. This combination makes the high-temperature resistant fiber in this recycled fiber not only have a larger roughness, making it easier to combine with the other components in the concrete, but also makes the high-temperature resistant fiber have good thermal stability during the concrete preparation process to resist the thermal damage caused by the concrete curing, thereby overcoming the defects caused by directly adding fibers in the prior art that affect the mechanical properties (such as tensile properties) of the fiber itself.

[0029] Therefore, this invention not only has a better recycling effect, but also has higher work efficiency and lower processing cost.

[0030] 2. In the thermal crushing system for recycling waste high-temperature resistant filter bags of the present invention, the waste high-temperature resistant filter bags to be processed need to pass through a cross-cutting roller group, a special barbed roller group, a conveying roller group, and a stripping roller in sequence before regenerated fibers can be generated. The cutting edges of the cross-cutting blades on the cross-cutting roller group are perpendicular to the central axis of the cross-cutting roller, while the special barbed rollers on the special barbed roller group have a radial distribution structure along the axial direction of the roller. During application, the filter bags being processed initially have high resistance, so the cross-cutting blades first cut the material, resulting in high processing efficiency. After the cross-cutting blades have processed the material, the material has been dispersed, and the resistance has significantly decreased. At this point, the special barbed rollers are used to continue crushing or tearing, which fully utilizes the advantage of the radial arrangement of the special barbed rollers, enhancing the crushing function and improving the dispersion effect, thereby achieving high efficiency throughout the crushing process. Therefore, the present invention has a strong crushing effect and obtains a high degree of product dispersion.

[0031] 3. In the thermal crushing system for recycling waste high-temperature resistant filter bags of the present invention, the waste high-temperature resistant filter bags to be processed need to pass through a cross-cutting roller group, a special piercing roller group, a conveying roller group, and a peeling roller in sequence before recycled fibers can be generated. The main function of the cross-cutting roller group and the special piercing roller group is crushing, while the conveying roller group mainly functions as a conveyor, while also handling crushing. Therefore, during operation, the rotational speed of each roller in each roller group can be controlled to create a speed difference between roller groups, or even between rollers, thereby improving the tearing and crushing effect and obtaining more dispersed recycled fibers, which is beneficial for subsequent recycling. Therefore, the present invention has strong controllability and obtains a high degree of dispersion of recycled fibers.

[0032] 4. In the thermal crushing system for recycling waste high-temperature resistant filter bags of the present invention, the preferred method of the special-sharpening roller includes a special-sharpening cylinder and a special-sharpening head disc and a special-sharpening tail disc connected to its two ends. The special-sharpening cylinder has a special-sharpening cylinder cavity inside. At least one of the special-sharpening head shaft and the special-sharpening tail shaft has a special-sharpening shaft cavity inside to communicate with the cross-cutting cylinder cavity. The special-sharpening cylinder includes special-length protrusions and special-length concave portions connected radially at intervals. A special-sharpening strip is embedded and connected to the side wall of the special-length concave portion. The top of the special-sharpening strip is provided with multiple special-sharpening roller spikes. The bottom end of the special-sharpening roller spikes is connected to the top of the special-sharpening strip, and the top end of the special-sharpening roller spikes extends upward. A special-length ventilation hole is opened in the special-sharpening protrusion to communicate with the special-sharpening cylinder cavity. The advantages of this design include:

[0033] First, the existence of the special piercing shaft cavity and the special piercing cylinder cavity enables the introduction of hot air into the special piercing cylinder cavity to increase the processing temperature of the special piercing roller group, so that the special piercing roller crushes the workpiece in a hot environment, which is conducive to obtaining more dispersed recycled fibers.

[0034] Secondly, the presence of specialized vents can both enclose hot air within the cylinder for heat transfer and allow hot air to dissipate, further creating a thermal environment for crushing. It can also enrich the hot air, such as by adding humid hot air, which is more conducive to improving the thermal crushing effect.

[0035] Therefore, the present invention has strong controllability and better thermal crushing effect.

[0036] 5. In the thermal crushing system for recycling waste high-temperature resistant filter bags of the present invention, a matching small spiked roller is preferably provided on the side of the small conveying roller to cooperate with the large conveying roller; the small spiked roller includes a small spiked cylinder and small spiked head discs and small spiked tail discs connected to its two ends, and at least one of the small spiked head shaft and small spiked tail shaft has a small spiked shaft cavity inside to communicate with the cavity of the small spiked cylinder; the small spiked cylinder includes small elongated protrusions and small elongated concave portions connected in a radially spaced manner, and a small spiked bar is embedded and connected in the small elongated concave portion, the top of the small spiked bar... The device is equipped with multiple small roller spikes, the bottom of which connects to the top of the small spike strips, and the top of the small roller spikes extends upwards. Small elongated vent holes are formed within the elongated protrusions to communicate with the small spike cylinder cavity. In application, the small spike shaft cavity, small spike cylinder cavity, and elongated vent holes have similar effects to those of dedicated spike shaft cavities, dedicated spike cylinder cavities, and dedicated elongated vent holes, further enhancing dispersibility and improving the thermal crushing effect. Furthermore, in addition to the dedicated spike roller group, the small spike rollers can serve as an additional controllable thermal crushing control, increasing the controllable range. Therefore, this invention offers strong controllability, good dispersibility, and high product quality.

[0037] 6. In the thermal crushing system for recycling waste high-temperature resistant filter bags of the present invention, preferably, a plurality of parallel stripping rings are arranged along the axial direction on the side wall of the stripping roller, and a spacer ring is provided between adjacent stripping rings. Each stripping ring includes a plurality of stripping hands evenly arranged along the same circumference. Each stripping hand includes a stripping vertical plate and a stripping horizontal plate. The bottom end of the stripping vertical plate is connected to the side wall of the stripping roller, and the top end of the stripping vertical plate is connected to the inner side of the stripping horizontal plate. The stripping horizontal plate extends laterally along the axial direction of the stripping roller, and stripping teeth are provided on the outer side of the stripping horizontal plate. In application, by driving the stripping roller to rotate, the plurality of stripping hands on it continuously come into contact with the large conveying roller, thereby scraping off the regenerated fibers attached to it. Especially when stripping teeth are provided on the outer side of the stripping horizontal plate, the efficiency is higher. Therefore, the recycling efficiency of the present invention is high. Attached Figure Description

[0038] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0039] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from the side.

[0040] Figure 3 yes Figure 2 The main view.

[0041] Figure 4 This is a schematic diagram of the rear end of the cross-cutting roller in this invention.

[0042] Figure 5 This is a cross-sectional view of the front end of the cross-cutting roller in this invention.

[0043] Figure 6 This is a schematic diagram of the transverse ring structure in this invention.

[0044] Figure 7 This is a schematic diagram of the rear end of the special piercing roller in this invention.

[0045] Figure 8 This is a schematic diagram of the cross-section of the special piercing roller along the special piercing roller in this invention.

[0046] Figure 9 This is a schematic cross-sectional view of the special vent hole along the upper edge of the special piercing roller in this invention.

[0047] Figure 10 This is a schematic diagram of the rear end of the small spiked roller in this invention.

[0048] Figure 11 This is a schematic diagram of the cross-section of the small burr roller along the small burr on the small burr roller in this invention.

[0049] Figure 12 This is a schematic diagram of the cross-section of the small vent hole along the upper edge of the small burr roller in this invention.

[0050] Figure 13 This is a schematic diagram of the rear end of the small conveying roller in this invention.

[0051] Figure 14 This is a schematic diagram of the rear end of the large conveying roller in this invention.

[0052] Figure 15 This is a schematic diagram of the structure for peeling off the hand in this invention.

[0053] In the diagram: 1. Large conveyor roller; 11. Conveying protrusion; 12. Conveying block gap; 2. Cross-cutting roller group; 20. Cross-cutting roller; 21. Cross-cutting cylinder; 211. Cross-cutting cylinder cavity; 22. First cross-cutting disc; 221. First cross-cutting shaft; 222. Cross-cutting shaft cavity; 23. Cross-cutting tail disc; 231. Cross-cutting tail shaft; 24. Cross-cutting convex ring; 241. Cross-cutting convex ring cavity; 242. Cross-cutting vent hole; 25. Cross-cutting concave ring; 251. Cross-cutting concave ring cavity; 252. Cross-cutting hole; 253. Cross-cutting bolt; 26. Cross-cutting ring; 261. Cross-cutting arc block; 262. Cross-cutting block hole; 27. Cross-cutting blade; 271. Cross-cutting blade shaft; 272. Cross-cutting blade gap; 28. Special piercing roller group; 3. Special piercing roller; 30. Special piercing cylinder; 311. Special piercing cylinder cavity; 32. First piercing disc; 321. First piercing shaft; 322. Special piercing tail disc. 33. Disc 33, Specialized barb tail shaft 331, Specialized long protrusion 34, Specialized long vent hole 341, Specialized long concave part 35, Specialized concave hole 351, Specialized long bolt 352, Specialized barb 36, Specialized roller bar 361, Specialized long bar hole 362, Conveyor roller group 4, Small conveyor roller 40, Small barb roller 41, Small barb cylinder 42, Small barb cylinder cavity 421, Small barb head disc 43, Small barb head shaft 431, Small barb shaft cavity 432, Small barb tail disc 44, Small barb tail shaft 441, Small long protrusion 45, Small long vent hole 451, Small long concave part 46, Small barb 47, Small roller bar 471, Blunt protrusion 48, Protrusion gap 481, Peeling roller 5, Peeling ring 51, Interval ring surface 511, Peeling hand 52, Peeling vertical plate 53, Peeling horizontal plate 54, Peeling tooth 55. Detailed Implementation

[0054] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0055] See Figure 1 — Figure 15 A thermal crushing system for recycling waste high-temperature resistant filter bags includes a cross-cutting roller group 2, a special piercing roller group 3, a conveying roller group 4, and a peeling roller 5 arranged in sequence. The cross-cutting roller group 2 includes two cross-cutting rollers 20 arranged vertically opposite each other. The special piercing roller group 3 includes two special piercing rollers 30 arranged vertically opposite each other. The conveying roller group 4 includes a large conveying roller 1 and a small conveying roller 40 arranged above it. The peeling roller 5 is arranged near the right side of the large conveying roller 1.

[0056] The input end of the cross-cutting roller group 2 is connected to the input end of the conveying roller group 4 via the special piercing roller group 3, and the output end of the conveying roller group 4 is connected to the input end of the peeling roller 5.

[0057] The cross-cutting roller 20 includes a cross-cutting cylinder 21 and a cross-head disc 22 and a cross-tail disc 23 connected to its two ends. The cross-head disc 22 and the cross-tail disc 23 are respectively connected to the corresponding cross-head shaft 221 and the cross-tail shaft 231. The cross-cutting cylinder 21 includes a transverse convex ring portion 24 and a transverse concave ring portion 25 that are sequentially spaced along the axial direction. The transverse convex ring portion 24 has a corresponding transverse convex ring cavity 241 inside, which is connected to the transverse vent hole 242 opened on the transverse convex ring portion 24. The transverse concave ring portion 25 has a corresponding transverse concave ring cavity 251 inside. All the transverse convex ring cavities 241 and transverse concave ring cavities 251 are sequentially spaced and connected to form a cross-cutting cylinder cavity 211. At least one of the cross-head shaft 221 and the cross-tail shaft 231 has a transverse shaft cavity 222 inside, which is connected to the cross-cutting cylinder cavity 211.

[0058] A transverse cutting ring 26 is embedded and connected to the periphery of the transverse concave ring portion 25. A plurality of transverse cutting blades 27 are fixedly connected to the top of the transverse cutting ring 26. The blade 271 of the transverse cutting blades 27 is perpendicular to the central axis of the transverse cutting roller 20.

[0059] The transverse cutting ring 26 includes at least two transverse cutting arc blocks 261, and all the transverse cutting arc blocks 261 are connected in sequence to form the same transverse cutting ring 26; both ends of the transverse cutting arc block 261 are fixedly connected to the transverse concave ring portion 25, the top of the transverse cutting arc block 261 is connected to the bottom end of the transverse cutting blade shaft 272, and the top end of the transverse cutting blade shaft 272 is threadedly connected to the bottom of the transverse cutting blade 27.

[0060] The transverse ring 26 includes four transverse arc blocks 261 with identical structures, each transverse arc block 261 having an arc of 90 degrees; each end of the transverse arc block 261 has a transverse block hole 262, and the transverse concave ring portion 25 has multiple transverse ring holes 252, which are connected to the corresponding transverse block holes 262 by transverse bolts 253.

[0061] The special-purpose piercing roller 30 includes a special-purpose piercing cylinder 31 and special-purpose piercing head disc 32 and special-purpose piercing tail disc 33 connected to its two ends. The special-purpose piercing cylinder 31 has a special-purpose cylinder cavity 311 inside. The special-purpose piercing head disc 32 and special-purpose piercing tail disc 33 are respectively connected to the corresponding special-purpose piercing head shaft 321 and special-purpose piercing tail shaft 331. At least one of the special-purpose piercing head shaft 321 and special-purpose piercing tail shaft 331 has a special-purpose shaft cavity 322 inside to communicate with the transverse cutting cylinder cavity 211.

[0062] The special-purpose piercing cylinder 31 includes special-purpose protrusions 34 and special-purpose recesses 35 that are connected in a radially spaced manner. A special-purpose piercing strip 36 is embedded and connected to the side of the special-purpose recess 35. The top of the special-purpose piercing strip 36 is provided with multiple special-purpose roller piercings 361. The bottom end of the special-purpose roller piercings 361 is connected to the top of the special-purpose piercing strip 36, and the top end of the special-purpose roller piercings 361 extends upward. A special-purpose vent hole 341 is opened in the special-purpose protrusion 34 to communicate with the special-purpose piercing cylinder cavity 311.

[0063] Each end of the special barb 36 is provided with a special long bar hole 362, and each end of the special long recess 35 is provided with a special recess hole 351. The special recess hole 351 is connected to the corresponding special long bar hole 362 by a special long bolt 352.

[0064] The special roller burr 361 has a conical structure that is narrow at the top and wide at the bottom.

[0065] A matching small spiked roller 41 is provided on the side of the small conveying roller 40 to cooperate with the large conveying roller 1; the small spiked roller 41 includes a small spiked cylinder 42 and small spiked head discs 43 and small spiked tail discs 44 connected to its two ends. The small spiked cylinder 42 is provided with a small spiked cylinder cavity 421. The small spiked head discs 43 and small spiked tail discs 44 are respectively connected to the corresponding small spiked head shaft 431 and small spiked tail shaft 441. At least one of the small spiked head shaft 431 and small spiked tail shaft 441 has a small spiked shaft cavity 432 inside to communicate with the small spiked cylinder cavity 421.

[0066] The small barb tube 42 includes small elongated protrusions 45 and small elongated recesses 46 that are connected radially in sequence. A small barb 47 is embedded in the small elongated recess 46. The top of the small barb 47 is provided with multiple small roller barbs 471. The bottom end of the small roller barb 471 is connected to the top of the small barb 47, and the top end of the small roller barb 471 extends upward. A small elongated vent hole 451 is opened in the small elongated protrusion 45 to communicate with the small barb tube cavity 421.

[0067] The number of small conveying rollers 40 is three, the number of small spiked rollers 41 is three, and the rightmost group of small conveying rollers 40 and small spiked rollers 41 is located close to the stripping roller 5.

[0068] The distribution density of small roller burrs 471 on the small conveying roller 40 is greater than the distribution density of special roller burrs 361 on the special burr roller 30.

[0069] The side of the large conveying roller 1 is provided with a plurality of evenly distributed conveying protrusions 11, and a conveying block gap 12 is formed between adjacent conveying protrusions 11.

[0070] The small conveying roller 40 has a plurality of evenly distributed blunt protrusions 48 on its sidewall, and a protrusion gap 481 is formed between adjacent blunt protrusions 48.

[0071] The peeling roller 5 has a plurality of parallel peeling rings 51 arranged along its axial direction on its side wall. An intervening ring surface 511 is provided between adjacent peeling rings 51. Each peeling ring 51 includes a plurality of peeling hands 52 evenly arranged along the same circumference. Each peeling hand 52 includes a peeling vertical plate 53 and a peeling horizontal plate 54. The bottom end of the peeling vertical plate 53 is connected to the side wall of the peeling roller 5, and the top end of the peeling vertical plate 53 is connected to the inner side of the peeling horizontal plate 54. The peeling horizontal plate 54 extends laterally along the axial direction of the peeling roller 5, and peeling teeth 55 are provided on the outer side of the peeling horizontal plate 54.

[0072] The principle of this invention is explained as follows:

[0073] The waste high-temperature resistant filter bags of this invention refer to: filter bags made of high-temperature resistant materials that have lost their filtration efficiency after filtering flue gas from the combustion of coal, oil, gas, or other combustibles. During use, dust and other particles in the flue gas fill the gaps in the filter bag material and adhere to the fiber surface, and may also cause damage, resulting in a decrease in filtration efficiency and the formation of waste filter bags. In this invention, the preferred material for the filter bags is PPS needle-punched nonwoven felt.

[0074] The recycled fibers obtained in this invention are preferably used as additives to modify concrete. Advantages include: ① Utilizing the material from discarded high-temperature resistant filter bags, resulting in greater energy efficiency and environmental friendliness; ② Eliminating the need to remove filter residue, avoiding the addition of chemicals, and eliminating the need for washing or cleaning the recycled (reused) fibers, leading to extremely low costs; ③ The recycled (reused) fibers have good dispersibility and flexibility, easily mixing evenly with various materials in the concrete; ④ The filter residue adhering to the surface of the recycled (reused) fibers has two advantages: first, good thermal stability, resisting thermal damage caused by concrete curing; and second, a certain degree of thermal fluidity, allowing for filling and reducing gaps and pores in the concrete, thus promoting the compaction of concrete products.

[0075] Example 1:

[0076] See Figure 1 — Figure 15A thermal crushing system for recycling waste high-temperature resistant filter bags includes a cross-cutting roller group 2, a special-prick roller group 3, a conveying roller group 4, and a stripping roller 5 arranged sequentially. The cross-cutting roller group 2 includes two cross-cutting rollers 20 arranged vertically opposite each other. The special-prick roller group 3 includes two special-prick rollers 30 arranged vertically opposite each other. The conveying roller group 4 includes a large conveying roller 1 and a small conveying roller 40 arranged above it. The stripping roller 5 is located near the right side of the large conveying roller 1. The input end of the cross-cutting roller group 2 is connected to the input end of the conveying roller group 4 via the special-prick roller group 3, and the output end of the conveying roller group 4 is connected to the input end of the stripping roller 5. The cross-cutting roller 20 includes a cross-cutting cylinder 21 and a cross-cutting head plate 22 and a cross-cutting tail plate 23 connected to its two ends. The cross-cutting head plate 22 and the cross-cutting tail plate 23 are respectively connected to the corresponding cross-cutting head shaft 221 and cross-cutting tail shaft 231. The cross-cutting cylinder 21 includes a transverse convex ring portion 24 and a transverse concave ring portion 25 that are sequentially spaced along the axial direction. The transverse convex ring portion 24 has a corresponding transverse convex ring cavity 241 inside, which is connected to a transverse vent hole 242 on the transverse convex ring portion 24. The transverse concave ring portion 25 has a corresponding transverse concave ring cavity 251 inside. All the transverse convex ring cavities 241 and transverse concave ring cavities 251 are sequentially spaced and connected to form a cross-cutting cylinder cavity 211. At least one of the transverse head shaft 221 and transverse tail shaft 231 has a transverse shaft cavity 222 inside, which is connected to the cross-cutting cylinder cavity 211. A cross-cutting ring 26 is embedded and connected to the periphery of the transverse concave ring portion 25. A plurality of cross-cutting blades 27 are fixedly connected to the top of the cross-cutting ring 26. The blade 271 of the cross-cutting blades 27 is perpendicular to the central axis of the cross-cutting roller 20.

[0077] Example 2:

[0078] The basic content is the same as in Example 1, except that:

[0079] The transverse ring 26 includes four transverse arc blocks 261 with identical structures, each transverse arc block 261 having an arc of 90 degrees; each end of the transverse arc block 261 has a transverse block hole 262, and the transverse concave ring portion 25 has multiple transverse ring holes 252, which are connected to the corresponding transverse block holes 262 by transverse bolts 253.

[0080] Example 3:

[0081] The basic content is the same as in Example 1, except that:

[0082] The specialized piercing roller 30 includes a specialized piercing cylinder 31 and specialized piercing head discs 32 and tail discs 33 connected to its two ends. The specialized piercing cylinder 31 has a specialized piercing cylinder cavity 311 inside. The specialized piercing head discs 32 and tail discs 33 are respectively connected to corresponding specialized piercing head shafts 321 and tail shafts 331. At least one of the specialized piercing head shafts 321 and tail shafts 331 has a specialized piercing shaft cavity 322 inside to communicate with the transverse cutting cylinder cavity 211. The special-purpose barrel 31 includes special-purpose protrusions 34 and special-purpose recesses 35 that are connected in a radially spaced manner. A special-purpose bar 36 is embedded and connected to the side of the special-purpose recess 35. The top of the special-purpose bar 36 is provided with multiple special-purpose roller barbs 361. The bottom end of the special-purpose roller barb 361 is connected to the top of the special-purpose bar 36, and the top end of the special-purpose roller barb 361 extends upward. A special-purpose ventilation hole 341 is opened in the special-purpose protrusion 34 to communicate with the special-purpose barrel cavity 311.

[0083] Example 4:

[0084] The basic content is the same as in Example 1, except that:

[0085] A matching small spiked roller 41 is provided on the side of the small conveying roller 40 to cooperate with the large conveying roller 1; the small spiked roller 41 includes a small spiked cylinder 42 and small spiked head discs 43 and small spiked tail discs 44 connected to its two ends. The small spiked cylinder 42 has a small spiked cylinder cavity 421 inside. The small spiked head discs 43 and small spiked tail discs 44 are respectively connected to the corresponding small spiked head shaft 431 and small spiked tail shaft 441. At least one of the small spiked head shaft 431 and small spiked tail shaft 441 has a small spiked shaft inside. The cavity 432 is connected to the small barb cylinder cavity 421; the small barb cylinder 42 includes small elongated protrusions 45 and small elongated recesses 46 connected radially in sequence. A small barb 47 is embedded in the small elongated recess 46. The top of the small barb 47 is provided with multiple small roller barbs 471. The bottom end of the small roller barb 471 is connected to the top of the small barb 47. The top end of the small roller barb 471 extends upward. A small elongated vent hole 451 is opened in the small elongated protrusion 45 to communicate with the small barb cylinder cavity 421.

[0086] Example 5:

[0087] The basic content is the same as in Example 1, except that:

[0088] The peeling roller 5 has a plurality of parallel peeling rings 51 arranged along its axial direction on its side wall. An intervening ring surface 511 is provided between adjacent peeling rings 51. Each peeling ring 51 includes a plurality of peeling hands 52 evenly arranged along the same circumference. Each peeling hand 52 includes a peeling vertical plate 53 and a peeling horizontal plate 54. The bottom end of the peeling vertical plate 53 is connected to the side wall of the peeling roller 5, and the top end of the peeling vertical plate 53 is connected to the inner side of the peeling horizontal plate 54. The peeling horizontal plate 54 extends laterally along the axial direction of the peeling roller 5, and peeling teeth 55 are provided on the outer side of the peeling horizontal plate 54.

[0089] Example 6:

[0090] The basic content is the same as in Example 1, except that:

[0091] The blade 271 of the cross-cutting blade 27 has an arc-shaped structure, and there is a cross-cutting gap 28 between adjacent cross-cutting blades 27.

[0092] The above description is only a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present invention should be included within the scope of protection set forth in the claims.

Claims

1. A thermal disintegration system for recycling spent refractory filter bags, characterized by: The hot crushing system comprises a cross-cut roller group (2), a special piercing roller group (3), a conveying roller group (4) and a stripping roller (5) arranged in sequence, the cross-cut roller group (2) comprises two cross-cut rollers (20) arranged in opposition, the special piercing roller group (3) comprises two special piercing rollers (30) arranged in opposition, the conveying roller group (4) comprises a large conveying roller (1) and a small conveying roller (40) arranged above the large conveying roller (1), and the stripping roller (5) is arranged near the right side of the large conveying roller (1); The input end of the cross-cut roller group (2) is connected with the input end of the conveying roller group (4) through the special piercing roller group (3), and the output end of the conveying roller group (4) is connected with the input end of the stripping roller (5); The cross-cut roller (20) comprises a cross-cut cylinder (21), a cross-cut head disc (22) and a cross-cut tail disc (23) connected to both ends of the cross-cut cylinder (21), and the cross-cut head disc (22) and the cross-cut tail disc (23) are connected with corresponding cross-cut head shafts (221) and cross-cut tail shafts (231), respectively; the cross-cut cylinder (21) comprises a cross-cut convex ring part (24) and a cross-cut concave ring part (25) connected in sequence and at intervals along the axial direction, the inside of the cross-cut convex ring part (24) is provided with a corresponding cross-cut convex ring cavity (241), the cross-cut convex ring cavity (241) is connected with a cross-cut air hole (242) provided on the cross-cut convex ring part (24), and the inside of the cross-cut concave ring part (25) is provided with a corresponding cross-cut concave ring cavity (251); all the cross-cut convex ring cavities (241) and the cross-cut concave ring cavities (251) are connected in sequence and at intervals to form a cross-cut cylinder cavity (211), and the inside of at least one of the cross-cut head shafts (221) and the cross-cut tail shafts (231) is provided with a cross-cut shaft cavity (222) to be connected with the cross-cut cylinder cavity (211); The cross-cut concave ring part (25) is embedded and connected with a cross-cut ring (26), the top of the cross-cut ring (26) is fixedly connected with a plurality of cross-cut knives (27), and the cutting edges (271) of the cross-cut knives (27) are perpendicular to the central axis of the cross-cut roller (20); The above hot crushing system operates according to the following steps: the waste high-temperature-resistant filter bag to be processed is sequentially subjected to the cross-cut roller group (2), the special piercing roller group (3), the conveying roller group (4) and the stripping roller (5) to generate regenerated fibers, wherein the cross-cut roller group (2) and the special piercing roller group (3) tear and crush the waste high-temperature-resistant filter bag or intermediate products, the conveying roller group (4) conveys, and the stripping roller (5) strips the generated regenerated fibers from the large conveying roller (1); In the process of tearing and crushing the waste high-temperature-resistant filter bag by the cross-cut roller group (2), hot air is supplied into the cross-cut cylinder cavity (211) through the cross-cut shaft cavity (222) to increase the overall temperature of the cross-cut roller group (2), and at the same time, the hot air is released through the cross-cut air hole (242), thereby providing a hot environment for the processing of the cross-cut roller group (2), which softens the filter residue on the waste high-temperature-resistant filter bag and reduces the volume of the filter residue or disintegrates the filter residue; The waste high-temperature-resistant filter bag comprises a filter bag body made of high-temperature-resistant fibers and filter residue adhered to the filter bag body; The regenerated fibers comprise high-temperature-resistant fibers and filter residue adhered thereto.

2. The thermal disintegration system for recycling spent refractory filter bags according to claim 1, characterized in that: The transverse ring (26) comprises at least two transverse arc blocks (261), all of which are sequentially connected into one transverse ring (26); both ends of the transverse arc block (261) are fixedly connected with the transverse concave ring part (25), and the top of the transverse arc block (261) is connected with the bottom end of the transverse cutter shaft (272), and the top end of the transverse cutter shaft (272) is threadedly connected with the bottom of the transverse cutter (27).

3. The thermal disintegration system for recycling spent refractory filter bags according to claim 2, characterized in that: The transverse ring (26) comprises four transverse arc blocks (261) with consistent structures, and the radian of each transverse arc block (261) is ninety degrees; both ends of the transverse arc block (261) are provided with a transverse block hole (262), and the transverse concave ring part (25) is provided with a plurality of transverse ring holes (252), which are connected with the corresponding transverse block holes (262) through transverse bolts (253).

4. The thermal disintegration system for recycling spent refractory filter bags according to claim 1, 2 or 3, characterized in that: The special roller (30) comprises a special roller barrel (31), a special roller head disc (32) and a special roller tail disc (33) connected at both ends of the special roller barrel (31), and the inside of the special roller barrel (31) is provided with a special roller barrel cavity (311), the special roller head disc (32) and the special roller tail disc (33) are connected with a special roller head shaft (321) and a special roller tail shaft (331) respectively, and the inside of at least one of the special roller head shaft (321) and the special roller tail shaft (331) is provided with a special roller shaft cavity (322) to communicate with the transverse barrel cavity (211); The special roller barrel (31) comprises a special long convex part (34) and a special long concave part (35) connected in sequence along the radial direction, and a special roller strip (36) is embedded and connected on the side wall of the special long concave part (35), the top of the special roller strip (36) is provided with a plurality of special roller barbs (361), the bottom end of the special roller barb (361) is connected with the top of the special roller strip (36), the top end of the special roller barb (361) extends upward, and the special long convex part (34) is provided with a special long ventilation hole (341) to communicate with the special roller barrel cavity (311).

5. The thermal disintegration system for recycling spent refractory filter bags according to claim 4, characterized in that: Both ends of the special roller strip (36) are provided with a special long strip hole (362), and both ends of the special long concave part (35) are provided with a special concave hole (351), which is connected with the corresponding special long strip hole (362) through a special long bolt (352).

6. The thermal disintegration system for recycling spent refractory filter bags according to claim 4, characterized in that: The special roller barb (361) has a conical structure with a narrow top and a wide bottom.

7. The thermal disintegration system for recycling spent refractory filter bags according to claim 4, characterized in that: A small roller (40) is arranged on the side of the large roller (1) to cooperate with the large roller (1), and the small roller (40) comprises a small roller barrel (42), a small roller head disc (43) and a small roller tail disc (44) connected at both ends of the small roller barrel (42), the inside of the small roller barrel (42) is provided with a small roller barrel cavity (421), the small roller head disc (43) and the small roller tail disc (44) are connected with a small roller head shaft (431) and a small roller tail shaft (441) respectively, and the inside of at least one of the small roller head shaft (431) and the small roller tail shaft (441) is provided with a small roller shaft cavity (432) to communicate with the small roller barrel cavity (421). The small spike cylinder (42) comprises small long convex parts (45) and small long concave parts (46) connected in sequence in the radial direction, one small spike strip (47) is embedded and connected in the small long concave part (46), the top of the small spike strip (47) is provided with a plurality of small roller spikes (471), the bottom end of the small roller spike (471) is connected with the top of the small spike strip (47), the top end of the small roller spike (471) extends upward, and the small long convex part (45) is provided with a small long ventilation hole (451) connected with the small spike cylinder cavity (421).

8. The thermal disintegration system for recycling spent refractory filter bags according to claim 7, characterized in that: The number of the small conveying rollers (40) is three, and the number of the small spike rollers (41) is three, and the small conveying roller (40) and the small spike roller (41) located at the rightmost side are arranged close to the stripping roller (5). The distribution density of the small roller spikes (471) on the small conveying roller (40) is greater than the distribution density of the special roller spikes (361) on the special spike roller (30).

9. The system according to claim 1, 2 or 3, characterized in that: The side wall of the large conveying roller (1) is provided with a plurality of uniformly distributed conveying protrusions (11), and conveying block gaps (12) are formed between adjacent conveying protrusions (11). The side wall of the small conveying roller (40) is provided with a plurality of uniformly distributed blunt protrusions (48), and protrusion gaps (481) are formed between adjacent blunt protrusions (48).

10. The thermal shredding system for recycling spent refractory filter bags of claim 1, 2 or 3, wherein: The side wall of the stripping roller (5) is provided with a plurality of parallel stripping rings (51) in the axial direction, and interval ring surfaces (511) are arranged between adjacent stripping rings (51), the stripping ring (51) comprises a plurality of stripping hands (52) arranged uniformly along the same circumference, the stripping hand (52) comprises a stripping vertical plate (53) and a stripping horizontal plate (54), the bottom end of the stripping vertical plate (53) is connected with the side wall of the stripping roller (5), the top end of the stripping vertical plate (53) is connected with the inner side of the stripping horizontal plate (54), the stripping horizontal plate (54) extends in the transverse direction of the stripping roller (5), and the outer side of the stripping horizontal plate (54) is provided with a stripping tooth (55).

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