Tubular crushing device and pipeline conveying system

Abstract

The utility model provides a tubular crushing device and a pipeline conveying system. The tubular crushing device comprises a connecting pipeline and a crushing mechanism, the crushing mechanism comprises a transmission shaft and a crushing assembly, the transmission shaft penetrates through the connecting pipeline and is rotationally connected with the connecting pipeline, the crushing assembly comprises a crushing part and a material blocking part, and the crushing part is located in the connecting pipeline; the crushing parts are arranged at intervals in the axial direction of the transmission shaft and fixedly connected to the transmission shaft, an included angle is formed between every two adjacent crushing parts, at least one end of each crushing part protrudes out of the transmission shaft, and the part, protruding out of the transmission shaft, of each crushing part is a crushing part; the material blocking part is connected to the connecting pipeline, the transmission shaft and the material blocking part are sequentially arranged in the conveying direction of the connecting pipeline, a plurality of discharging receding grooves arranged at intervals are formed in the material blocking part, and the multiple crushing parts movably penetrate through the multiple discharging receding grooves in a one-to-one correspondence mode when rotating. In this way, the crushing effect and the structural compactness are both good.

Description

Technical Field

[0001] The present disclosure relates to the technical field of pipeline transportation systems, and in particular to a tubular crushing device and a pipeline transportation system. Background Art

[0002] Conveying pipes are often used to transport materials. When conveying pipes are used to transport bulk materials, or when the transported materials are prone to agglomeration, the conveying pipes are more likely to be blocked. It is necessary to install a crushing device on the conveying pipes. The crushing device crushes the materials to make the bulk materials finer to ensure smooth pipeline transportation.

[0003] In the related art, document number CN201567078U discloses a pneumatic conveyor, which is provided with a tubular crushing device, i.e., a block breaker, which includes a pipeline and a crushing tooth roller, which is arranged in the pipeline, and the crushing tooth roller includes a rotating shaft and a rack, and the rotating shaft, a reducer and a motor are sequentially connected in a transmission manner, and a plurality of racks are protrudingly connected to the outer side of the rotating shaft. When breaking the material, the motor drives the reducer to rotate, the reducer drives the rotating shaft to rotate, and the rotating shaft drives the plurality of racks to rotate, so that the plurality of racks can crush the material.

[0004] However, due to the large channel in the crushing device, some large block materials will pass through the crushing device, resulting in poor crushing effect, and the conveying pipe will still be blocked after a long period of operation. Similarly, many crushing devices also have the same or similar problems, for example, CN218609697U-tube crusher.

[0005] Furthermore, document number CN111111870A discloses a bypass cement silo discharge pipe crusher, which is installed outside the discharge pipe. The main shaft of the reduction motor drives the transmission shaft to rotate through the coupling, and the gear pair at the end of the transmission shaft drives the two transmission shafts to rotate, thereby driving the crushing knives fixed on the two transmission shafts to rotate and crush the plate-bound materials. The multiple crushing knives on each transmission shaft are evenly spaced along the circumference, and the crushing knives on the two transmission shafts cooperate with each other to crush, so that the channel in the crusher is smaller, avoiding the problem of larger block materials passing through the crusher, and the crushing knives can continuously crush the materials, which improves the crushing effect.

[0006] However, since the transmission shaft and the crushing blade are both arranged outside the pipeline, the volume of the conveying system is large, resulting in poor structural compactness.

[0007] Therefore, there is an urgent need for a crushing device with good crushing effect and compact structure.

[0008] It should be noted that after diligently performing the creative novelty search of this scheme, the following technical literature is also provided for reference:

[0009] 1. CN203750596U-A bushing-free shaft tube crusher;

[0010] 2. CN214416643U - A pipeline crusher for crushing debris in an integrated pump station;

[0011] 3. CN202606234U-New magnetic pipeline sludge crusher, etc. Utility Model Content

[0012] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a tubular crushing device and a pipeline transportation system with good crushing effect and structural compactness.

[0013] The purpose of this disclosure is achieved through the following technical solutions:

[0014] A tubular crushing device comprises a connecting pipe and a crushing mechanism, wherein the crushing mechanism comprises a transmission shaft and a crushing assembly, wherein the transmission shaft passes through the connecting pipe and is rotatably connected to the connecting pipe, and the crushing assembly comprises:

[0015] A crushing member is located in the connecting pipe, wherein a plurality of the crushing members are spaced apart along the axial direction of the transmission shaft and are fixedly connected to the transmission shaft, an angle is formed between two adjacent crushing members, at least one end of each crushing member protrudes from the transmission shaft, and a portion of each crushing member protruding from the transmission shaft is a crushing portion; and

[0016] The material blocking member is connected to the connecting pipe, and the transmission shaft and the material blocking member are arranged in sequence along the conveying direction of the connecting pipe. The material blocking member is formed with a plurality of spaced-apart material discharging avoidance grooves, and the plurality of crushing members are movably arranged in the plurality of material discharging avoidance grooves in a one-to-one correspondence when rotating.

[0017] In one embodiment, a plurality of the crushing parts together constitute a crushing structure, which includes a plurality of crushing groups arranged in sequence and at least one connecting crushing part, a connecting crushing part is arranged between two adjacent crushing groups, each of the crushing groups includes a plurality of the crushing parts arranged in sequence, the plurality of crushing parts of each crushing group and the adjacent connecting crushing parts together constitute a rotating group, and one end of the plurality of crushing parts of each rotating group are staggered in sequence along the circumference of the transmission shaft.

[0018] In one embodiment, the angles between two adjacent crushing members in each rotating group are the same.

[0019] In one embodiment, one ends of the plurality of crushing elements of two adjacent rotating groups are arranged in opposite directions.

[0020] In one embodiment, the middle of each crushing member is fixedly connected to the transmission shaft, and both ends of each crushing member protrude from the transmission shaft.

[0021] In one embodiment, the lengths of the plurality of crushing members gradually increase from the inner wall of the connecting pipe toward the center of the connecting pipe.

[0022] In one of the embodiments, a material breaking protrusion structure is formed on one side of the material breaking portion facing the rotation direction.

[0023] In one of the embodiments, each of the material-breaking protrusion structures comprises a plurality of material-breaking teeth, and the plurality of material-breaking teeth of each of the material-breaking protrusion structures are arranged at intervals along an extension direction of the corresponding material-breaking portion.

[0024] In one of the embodiments, a plurality of spaced-apart material clamping protrusion structures are formed on one side of the material blocking member adjacent to the transmission shaft, and the plurality of material clamping protrusion structures are arranged one-to-one correspondingly to the plurality of material breaking protrusion structures of the breaking members, and each of the material clamping protrusion structures and the corresponding material breaking protrusion structure of the breaking member are used together to clamp and crush materials.

[0025] In one of the embodiments, each of the material clamping protrusion structures comprises a plurality of material clamping teeth, and the plurality of material clamping teeth of each of the material clamping protrusion structures are arranged at intervals along the extension direction of the material discharge avoidance groove.

[0026] In one of the embodiments, the material blocking member is located in the connecting pipe, and the tubular crushing device further comprises a fixing ring, which is fixedly connected to the periphery of each of the material blocking members, and the fixing ring abuts against one end surface of the connecting pipe.

[0027] A pipeline transportation system comprises the tubular crushing device described in any one of the above embodiments.

[0028] Compared with the prior art, the present invention has at least the following advantages:

[0029] 1. Since the transmission shaft and the crushing parts are arranged in the connecting pipe, it is avoided that the transmission shaft and the crushing parts are arranged outside the connecting pipe, the volume of the pipeline transportation system is reduced, and the structural compactness of the pipeline transportation system is improved.

[0030] 2. After the material enters the connecting pipe, the transmission shaft drives the crushing parts to rotate, so that the crushing part of the crushing parts breaks up the materials. Small pieces of materials will pass through the discharge avoidance slot, and large pieces of materials will be blocked on the blocking parts, that is, large pieces of materials will be blocked in the crushing area. The crushing parts also crush the large pieces of materials blocked on the blocking parts, so that the large pieces of materials are broken into small pieces by the crushing parts and then pass through the tubular crushing device, which improves the crushing effect and avoids the problem of large pieces of materials blocking subsequent pipelines.

[0031] 3. Due to the angle between two adjacent crushing parts, one end of the two adjacent crushing parts are staggered in the circumferential direction of the transmission shaft, so that the crushing continuity of the crushing assembly is stronger, the crushing efficiency of the crushing assembly is improved, and the problem of large pieces of material getting stuck in the crushing assembly is avoided, ensuring that the crushing assembly can operate continuously and avoiding the problem of materials getting stuck in the connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 This is a schematic structural diagram of a tubular crushing device according to an embodiment;

[0034] Figure 2 for Figure 1 The cross-sectional view of the tubular crushing device along line AA is shown;

[0035] Figure 3 for Figure 1 A partial structural schematic diagram of a tubular crushing device is shown;

[0036] Figure 4 for Figure 1 Another partial structural schematic diagram of the tubular crushing device shown;

[0037] Figure 5 for Figure 1 Another partial structural schematic diagram of the tubular crushing device shown;

[0038] Figure 6 for Figure 1 Another partial structural schematic diagram of the tubular crushing device shown;

[0039] Figure 7 for Figure 1 Another partial structural schematic diagram of the tubular crushing device shown;

[0040] Figure 8 for Figure 1 Another partial structural schematic diagram of the tubular crushing device shown;

[0041] Fig. 9 for Figure 1 Another partial structural schematic diagram of the tubular crushing device shown.

[0042] Figure numerals: 10, tubular crushing device; 100, connecting pipe; 200, crushing mechanism; 200a, transmission shaft; 200b, crushing assembly; 210, crushing piece; 211, crushing part; 211a, crushing protrusion structure; 2111, crushing teeth; 210a, crushing group; 210b, connecting crushing piece; 210c, rotating group; 220, material blocking piece; 221, clamping protrusion structure; 2211, clamping teeth; 2201, discharge avoidance groove; 300, fixing ring. DETAILED DESCRIPTION

[0043] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0044] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0046] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0047] like Figures 1 to 3As shown, a tubular crushing device 10 of an embodiment includes a connecting pipe 100 and a crushing mechanism 200, wherein the crushing mechanism 200 includes a transmission shaft 200a and a crushing assembly 200b, wherein the transmission shaft 200a is disposed through the connecting pipe 100 and is rotatably connected to the connecting pipe 100. The crushing assembly 200b includes a crushing member 210 and a material blocking member 220, wherein the crushing member 210 is located in the connecting pipe 100, wherein a plurality of crushing members 210 are arranged at intervals along the axial direction of the transmission shaft 200a and are fixedly connected to the transmission shaft 200a, and the transmission shaft 200a is used to drive the crushing member 210 to rotate. An angle is formed between two adjacent crushing members 210, wherein at least one end of each crushing member 210 protrudes from the transmission shaft 200a, and the portion of the crushing member 210 protruding from the transmission shaft 200a is a crushing portion 211, and the crushing portion 211 rotates and crushes materials under the drive of the transmission shaft 200a, and the movement area of ​​the crushing portion 211 is a crushing area.

[0048] like Figures 2 to 4 As shown, further, the material blocking member 220 is connected to the connecting pipe 100, and the transmission shaft 200a and the material blocking member 220 are sequentially arranged along the conveying direction of the connecting pipe 100, so that the material blocking member 220 blocks the large pieces of material in the crushing area. The material blocking member 220 is formed with a plurality of spaced-apart discharging avoidance grooves 2201, and the plurality of crushing members 210 are movably arranged in the plurality of discharging avoidance grooves 2201 corresponding to each other when rotating, so that small pieces of material can pass through the material blocking member 220, and the large pieces of material can be blocked in the crushing area, while also avoiding the problem of interference between the material blocking member 220 and the crushing member 210.

[0049] like Figures 2 to 4 As shown, in this embodiment, the connecting pipe 100 is one of the pipes of the pipeline transportation system, and the material passes through the connecting pipe 100 during the transportation process. After the material enters the connecting pipe 100, the transmission shaft 200a drives the crushing member 210 to rotate, so that the crushing part 211 of the crushing member 210 breaks up the material, and the small pieces of material will pass through the discharge avoidance groove 2201, and the large pieces of material will be blocked on the blocking member 220, that is, the large pieces of material will be blocked in the crushing area, and the crushing member 210 also crushes the large pieces of material blocked on the blocking member 220, so that the large pieces of material are broken into small pieces by the crushing member 210 and then pass through the tubular crushing device 10. It should be emphasized that the blocking member 220 can be connected inside the connecting pipe 100 or outside the connecting pipe 100, as long as the blocking member can block the large pieces of material in the crushing area.

[0050] The above-mentioned tubular crushing device 10, because the transmission shaft 200a and the crushing member 210 are arranged in the connecting pipe 100, avoids the transmission shaft 200a and the crushing member 210 being arranged outside the connecting pipe 100, reduces the volume of the pipeline transportation system, and improves the structural compactness of the pipeline transportation system. After the material enters the connecting pipe 100, the transmission shaft 200a drives the crushing member 210 to rotate, so that the crushing part 211 of the crushing member 210 breaks up the material, and the small pieces of material will pass through the discharge avoidance groove 2201, and the large pieces of material will be blocked on the material blocking member 220, that is, the large pieces of material will be blocked in the crushing area, and the crushing member 210 also crushes the large pieces of material blocked on the material blocking member 220, so that the large pieces of material are crushed into small pieces by the crushing member 210 and then pass through the tubular crushing device 10, thereby improving the crushing effect and avoiding the problem of large pieces of material blocking the subsequent pipeline. Moreover, since there is an angle between two adjacent crushing members 210, one ends of the two adjacent crushing members 210 are staggered in the circumferential direction of the transmission shaft 200a, so that the crushing continuity of the crushing assembly 200b is stronger, and the crushing efficiency of the crushing assembly 200b is improved. At the same time, the problem of large pieces of material getting stuck in the crushing assembly 200b is avoided, ensuring that the crushing assembly 200b can operate continuously and avoiding the problem of material blocking the connecting pipe 100.

[0051] like Figures 5 to 9 As shown, in one embodiment, a plurality of crushing members 210 together form a crushing structure, the crushing structure includes a plurality of crushing groups 210a arranged in sequence and at least one connecting crushing member 210b, a connecting crushing member 210b is arranged between two adjacent crushing groups 210a, the connecting crushing member 210b is a crushing member 210, each crushing group 210a includes a plurality of crushing members 210 arranged in sequence, the plurality of crushing members 210 of each crushing group 210a and the adjacent connecting crushing members 210b together form a rotating group 210c, and one end of the plurality of crushing members 210 of each rotating group 210c is sequentially staggered and arranged along the circumference of the transmission shaft 200a. In this embodiment, the connecting crushing member 210b is a crushing member 210, that is, the connecting crushing member 210b has the same structure as the crushing member 210 in the crushing group 210a. Two adjacent rotating groups 210c share a connecting crushing piece 210b, arrow a is the arrangement direction of one end of the multiple crushing pieces 210 of one rotating group 210c, and arrow b is the arrangement direction of one end of the multiple crushing pieces 210 of the other rotating group 210c. The multiple rotating groups 210c are used to crush the material, thereby improving the crushing efficiency and the crushing effect.

[0052] like Figures 5 to 9As shown, in one embodiment, each crushing group 210a has five crushing members 210, and each rotating group 210c has two crushing members 210, so that each rotating group 210c has 6 crushing members 210. It can be understood that one of the 6 crushing members 210 of each rotating group 210c is a connecting crushing member 210b.

[0053] It can be understood that the number of the rotating groups 210c is at least two, for example, two, three, four, etc., and those skilled in the art can adjust it according to the size of the bulk material, the material feeding speed, and the cost, etc. The number of each crushing group 221a can be two, three, four, etc., and those skilled in the art can adjust it according to the size of the bulk material, the material feeding speed, and the cost, etc.

[0054] like Figure 5 As shown, in one embodiment, the angles between two adjacent crushing members 210 of each rotating group 210c are the same, so that one end of the multiple crushing members 210 of each rotating group 210c is arranged at equal angles in sequence along the circumference of the transmission shaft 200a, that is, one end of the multiple crushing members 210 of each rotating group 210c forms multiple arrangement angles in the circumference of the transmission shaft 200a, and the angles of the multiple arrangement angles are the same, so that the crushing stability of each rotating group 210c is higher, and then the discharge stability of the connecting pipe 100 is higher. Of course, in another embodiment, the angles of the multiple arrangement angles can also be increased or decreased in sequence along the circumference of the transmission shaft 200a.

[0055] like Figure 5 As shown, in one embodiment, the arrangement directions of one end of the multiple crushing members 210 of two adjacent rotating groups 210c are opposite, that is, the direction of arrow a is opposite to that of arrow b, so that the number of crushing parts 211 on the upper side of the blocking member 220 is larger, which improves the crushing efficiency of the crushing assembly 200b, thereby improving the crushing efficiency of the crushing assembly 200b. In another embodiment, the arrangement directions of one end of the multiple crushing members 210 of two adjacent rotating groups 210c are the same. In another embodiment, the arrangement directions of one end of the multiple crushing members 210 of a part of two adjacent rotating groups 210c are the same, and the arrangement directions of one end of the multiple crushing members 210 of another part of two adjacent rotating groups 210c are opposite. It can be understood that the arrangement direction of one end of the multiple crushing members 210 of two adjacent rotating groups 210c can be adjusted according to the actual crushing situation.

[0056] like Figure 5 As shown, in one embodiment, the middle of each crushing member 210 is fixedly connected to the transmission shaft 200a, and both ends of each crushing member 210 protrude from the transmission shaft 200a, so that each crushing member 210 is provided with two crushing parts 211, which increases the density of the crushing part 211, improves the crushing efficiency, and thus improves the crushing effect.

[0057] like Figure 3 and 5 As shown, in one embodiment, the length of the multiple crushing pieces 210 gradually increases from the inner wall of the connecting pipe 100 to the center of the connecting pipe 100, so that the crushing pieces 210 are adapted to the shape of the circular connecting pipe 100, reducing the crushing dead angle and improving the crushing effect.

[0058] like Figure 6 As shown, in one of the embodiments, a material breaking protrusion structure 211 a is formed on one side of the material breaking portion 211 facing the rotation direction, which increases the cutting effect of the material breaking portion 211 and improves the material breaking effect of the material breaking portion 211 .

[0059] like Figure 5 As shown, in one embodiment, each material breaking protrusion structure 211a includes a plurality of material breaking teeth 2111 , and the plurality of material breaking teeth 2111 of each material breaking protrusion structure 211a are arranged at intervals along the extension direction of the corresponding material breaking portion 211 , so as to further improve the material breaking effect of the material breaking portion 211 .

[0060] like Figure 3 and Figure 4 As shown, in one embodiment, a plurality of spaced material clamping protrusion structures 221 are formed on one side of the material blocking member 220 adjacent to the transmission shaft 200a, and the plurality of material clamping protrusion structures 221 are arranged one by one correspondingly with the plurality of material breaking protrusion structures 211a of the breaking member 210, and each material clamping protrusion structure 221 and the material breaking protrusion structure 211a of the breaking member 210 are used together to clamp and crush the material. In this embodiment, the material clamping protrusion structure 221 and the crushing protrusion structure clamp and crush the material together, so that the material is subjected to shear force, thereby improving the crushing effect.

[0061] like Figure 4 As shown, in one embodiment, each material clamping protrusion structure 221 includes a plurality of material clamping teeth 2211, and the plurality of material clamping teeth 2211 of each material clamping protrusion structure 221 are arranged at intervals along the extension direction of the discharge avoidance groove 2201, thereby further improving the crushing effect.

[0062] like Figure 4As shown, in one embodiment, the material blocking member 220 is located in the connecting pipe 100, and the tubular crushing device 10 further includes a fixing ring 300, which is fixedly connected to the periphery of each material blocking member 220, and the fixing ring 300 abuts against one end surface of the connecting pipe 100. In this embodiment, the output end of the connecting pipe 100 is used to be connected to a docking pipe (not shown), so that the connecting pipe 100 is used to communicate with the docking pipe (not shown), and the material refined by the tubular crushing device 10 flows into the docking pipe (not shown). In this embodiment, the docking pipe (not shown) and the connecting pipe 100 jointly clamp the fixing ring 300, so that the material blocking member 220 is fixedly connected to the connecting pipe 100 through the fixing ring 300.

[0063] like Figure 4 As shown, further, the material blocking member 220 is covered at the output end of the connecting pipe 100, so that the material blocking member 220 plays a role in blocking large pieces of material.

[0064] like Figure 4 As shown, in one of the embodiments, the material stopper 220 and the fixing ring 300 are an integrally formed structure, which improves the connection stability between the material stopper 220 and the fixing ring 300.

[0065] The present disclosure also provides a pipeline transportation system, including the tubular crushing device 10 described in any of the above embodiments. The pipeline transportation system also includes an input pipeline and a docking pipeline, the input pipeline is connected to the input end of the connecting pipeline 100, and the docking pipeline is connected to the output end of the connecting pipeline 100, that is, the docking pipeline 100 is clamped between the input pipeline and the docking pipeline. In this embodiment, the pipeline transportation system can transport materials by pneumatic, extrusion or other existing methods, and the present disclosure does not limit the transportation method of the pipeline transportation system.

[0066] Compared with the prior art, the present invention has at least the following advantages:

[0067] 1. Since the transmission shaft 200a and the crushing member 210 are arranged inside the connecting pipe 100, it is avoided that the transmission shaft 200a and the crushing member 210 are arranged outside the connecting pipe 100, thereby reducing the volume of the pipeline transportation system and improving the structural compactness of the pipeline transportation system.

[0068] 2. After the material enters the connecting pipe 100, the transmission shaft 200a drives the crushing element 210 to rotate, so that the crushing part 211 of the crushing element 210 breaks up the material, and the small pieces of material will pass through the discharge avoidance groove 2201, and the large pieces of material will be blocked on the blocking element 220, that is, the large pieces of material will be blocked in the crushing area. The crushing element 210 also crushes the large pieces of material blocked on the blocking element 220, so that the large pieces of material are broken into small pieces by the crushing element 210 and then pass through the tubular crushing device 10, thereby improving the crushing effect and avoiding the problem of large pieces of material blocking subsequent pipelines.

[0069] 3. Since there is an angle between two adjacent crushing members 210, one ends of the two adjacent crushing members 210 are staggered in the circumferential direction of the transmission shaft 200a, so that the crushing continuity of the crushing assembly 200b is stronger, and the crushing efficiency of the crushing assembly 200b is improved. At the same time, the problem of large pieces of material getting stuck in the crushing assembly 200b is avoided, ensuring that the crushing assembly 200b can operate continuously and avoiding the problem of materials being blocked in the connecting pipe 100.

[0070] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the disclosed patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the disclosed patent shall be subject to the attached claims.

Claims

1. A tubular crushing device, comprising a connecting pipe and a crushing mechanism, wherein the crushing mechanism comprises a transmission shaft and a crushing assembly, wherein the transmission shaft is passed through the connecting pipe and is rotatably connected to the connecting pipe, wherein: The crushing assembly comprises: A crushing member is located in the connecting pipe, wherein a plurality of the crushing members are spaced apart along the axial direction of the transmission shaft and are fixedly connected to the transmission shaft, an angle is formed between two adjacent crushing members, at least one end of each crushing member protrudes from the transmission shaft, and a portion of each crushing member protruding from the transmission shaft is a crushing portion; and The material blocking member is connected to the connecting pipe, and the transmission shaft and the material blocking member are arranged in sequence along the conveying direction of the connecting pipe. The material blocking member is formed with a plurality of spaced-apart material discharging avoidance grooves, and the plurality of crushing members are movably arranged in the plurality of material discharging avoidance grooves in a one-to-one correspondence when rotating.

2. The tubular crushing device according to claim 1, characterized in that: The plurality of crushing parts together constitute a crushing structure, which includes a plurality of crushing groups arranged in sequence and at least one connecting crushing part, a connecting crushing part is arranged between two adjacent crushing groups, each crushing group includes a plurality of crushing parts arranged in sequence, the plurality of crushing parts of each crushing group and the adjacent connecting crushing parts together constitute a rotating group, and one end of the plurality of crushing parts of each rotating group is staggered and arranged in sequence along the circumference of the transmission shaft.

3. The tubular crushing device according to claim 2, characterized in that: The included angles between two adjacent crushing members in each rotating group are the same.

4. The tubular crushing device according to claim 2, characterized in that: The arrangement directions of one ends of the multiple crushing members of two adjacent rotating groups are opposite.

5. The tubular crushing device according to claim 1, characterized in that: The middle of each crushing member is fixedly connected to the transmission shaft, and both ends of each crushing member protrude from the transmission shaft.

6. The tubular crushing device according to claim 5, characterized in that: The lengths of the plurality of crushing members gradually increase from the inner wall of the connecting pipe toward the center of the connecting pipe.

7. The tubular crushing device according to claim 1, characterized in that: A material breaking protrusion structure is formed on one side of the material breaking portion facing the rotation direction.

8. The tubular crushing device according to claim 7, characterized in that: Each of the material-breaking protrusion structures comprises a plurality of material-breaking teeth, and the plurality of material-breaking teeth of each of the material-breaking protrusion structures are arranged at intervals along an extending direction of the corresponding material-breaking portion.

9. The tubular crushing device according to claim 7, characterized in that: A plurality of spaced apart material clamping protrusion structures are formed on one side of the material blocking member adjacent to the transmission shaft. The plurality of material clamping protrusion structures are arranged in one-to-one correspondence with the plurality of material breaking protrusion structures of the breaking members. Each of the material clamping protrusion structures and the corresponding material breaking protrusion structure of the breaking member are used together to clamp and crush materials.

10. The tubular crushing device according to claim 9, characterized in that: Each of the material clamping protrusion structures comprises a plurality of material clamping teeth, and the plurality of material clamping teeth of each of the material clamping protrusion structures are arranged at intervals along the extension direction of the material discharge avoidance groove.

11. The tubular crushing device according to claim 1, characterized in that: The material blocking member is located in the connecting pipe, and the tubular crushing device further comprises a fixing ring, which is fixedly connected to the periphery of each of the material blocking members and abuts against one end surface of the connecting pipe.

12. A pipeline transportation system, characterized in that: The invention comprises the tubular crushing device according to any one of claims 1 to 11.

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