Pipeline switching structure and crushing device

Abstract

The utility model relates to the technical field of lithium batteries, and discloses a pipeline switching structure and a crushing device. The pipeline switching structure comprises a feeding pipe, a first discharging pipe, a second discharging pipe and a switching mechanism, the first discharging pipe is communicated with the discharging end of the feeding pipe, the second discharging pipe is communicated with the discharging end of the feeding pipe, an angle is formed between the second discharging pipe and the first discharging pipe, the switching mechanism has a first opening state and a second opening state, and in the first opening state, the first discharging pipe is communicated with the discharging end of the feeding pipe; in the first opening state, the first discharging pipe is communicated with the feeding pipe through the communicating channel, the second discharging pipe is separated from the feeding pipe through the shell, in the second opening state, the second discharging pipe is communicated with the feeding pipe through the communicating channel, and the first discharging pipe is separated from the feeding pipe through the shell. By adjusting the first opening state and the second opening state of the switching mechanism, materials can be conveyed from the feeding pipe to the first discharging pipe or the second discharging pipe, a large amount of time for pipeline replacement or adjustment is not needed, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, and in particular to a pipeline switching structure and a crushing device. Background Art

[0002] Lithium battery is a secondary battery (rechargeable battery) that uses lithium metal or lithium-containing compounds as active materials and non-aqueous electrolyte solutions. It is widely used in consumer electronics, electric vehicles, energy storage systems, aerospace and other fields due to its advantages such as high energy density, long life, high voltage and low self-discharge rate.

[0003] In the prior art, the manufacturing process of positive electrode materials for lithium batteries mainly includes the following steps: raw material input, metering, mixing, sintering, coarse crushing, fine crushing, batching, screening, iron removal and packaging. Crushing is to reduce the particle size of materials through external force, increase the specific surface area, and help improve ion transmission and reaction rate. However, due to the differences in the characteristics of different products, when the production line needs to switch products, the crusher needs to manually switch the pipeline, resulting in reduced production efficiency. Utility Model Content

[0004] In view of this, the utility model provides a pipeline switching structure and a crushing device to solve the problem that the production line needs to manually switch the pipeline, resulting in reduced production efficiency.

[0005] In a first aspect, the utility model provides a pipeline switching structure, comprising:

[0006] Feed pipe;

[0007] A first discharge pipe, connected to the discharge end of the feed pipe;

[0008] A second discharge pipe, connected to the discharge end of the feed pipe and arranged at an angle to the first discharge pipe;

[0009] A switching mechanism is provided at the connection between the feed pipe, the first discharge pipe and the second discharge pipe, the switching mechanism comprises a shell and a communication channel opened on the shell, and the switching mechanism has a first open state and a second open state;

[0010] In the first open state, the first discharge pipe is connected to the feed pipe via the connecting passage, and the second discharge pipe is separated from the feed pipe via the shell; in the second open state, the second discharge pipe is connected to the feed pipe via the connecting passage, and the first discharge pipe is separated from the feed pipe via the shell.

[0011] Beneficial effects: This pipeline switching structure connects the first discharge pipe and the second discharge pipe to the discharge end of the feed pipe, so that the material in the feed pipe can flow out from the discharge end of the first discharge pipe or the second discharge pipe. The switching mechanism is set at the connection between the feed pipe, the first discharge pipe and the second discharge pipe. In the first open state, the material in the feed pipe enters the first discharge pipe through the connecting channel, and the material is transported to the discharge end of the first discharge pipe. Since the second discharge pipe and the feed pipe are separated by the shell, the material in the feed pipe cannot be transported to the second discharge pipe. In the second open state, the material in the feed pipe enters the second discharge pipe through the connecting channel, and the material is transported to the discharge end of the second discharge pipe. Since the first discharge pipe and the feed pipe are separated by the shell, the material in the feed pipe cannot be transported to the first discharge pipe. That is, by adjusting the first open state and the second open state of the switching mechanism, the material can be transported from the feed pipe to the first discharge pipe or the second discharge pipe, which increases the flexibility and functionality of the pipeline system. There is no need to spend a lot of time on pipeline replacement or adjustment, thereby reducing production line downtime and improving production efficiency.

[0012] In an optional embodiment, the switching mechanism is rotatably disposed in the feed pipe.

[0013] Beneficial effect: The switching mechanism is rotatably arranged in the feed pipe, and the switching mechanism can be switched between the first open state and the second open state by rotating the switching mechanism, and the connection switching between the feed pipe and the first discharge pipe or the second discharge pipe can be quickly realized. The structure is simple and the operation is easy and quick.

[0014] In an optional embodiment, the shell is rotatably disposed in the feed pipe via a rotating shaft.

[0015] Beneficial effect: The shell is placed inside the pipe via the rotating shaft, and the shell is driven to rotate by driving the rotating shaft to rotate, so that the position of the connecting channel on the shell is changed to facilitate switching between the first open state and the second open state.

[0016] In an optional embodiment, a shielding portion is provided on the shell, and the shielding portion is arc-shaped. In the first open state, the shielding portion fits against the inner wall of the second discharge pipe, and in the second open state, the shielding portion fits against the inner wall of the first discharge pipe.

[0017] Beneficial effect: By setting an arc-shaped shielding portion on the shell, when the switching mechanism is in the first open state, the arc-shaped shielding portion can better fit with the inner wall of the second discharge pipe, ensure the sealing between the second discharge pipe and the shielding portion, and prevent the material in the feed pipe from entering the second discharge pipe. Similarly, when the switching mechanism is in the second open state, the arc-shaped shielding portion can better fit with the inner wall of the first discharge pipe, ensure the sealing between the first discharge pipe and the shielding portion, and prevent the material in the feed pipe from entering the first discharge pipe.

[0018] In an optional embodiment, a bending section is provided at the discharge end of the first discharge pipe and the second discharge pipe.

[0019] Beneficial effect: The first discharge pipe and the second discharge pipe are provided with a bending section at the discharge end, so that the first discharge pipe or the second discharge pipe can be connected to an external device through the bending section. The bending section can effectively relieve the stress of the first discharge pipe and the second discharge pipe, reduce the risk of leakage at the connection caused by the bending of the first discharge pipe and the second discharge pipe, and improve the sealing performance of the system.

[0020] In an optional embodiment, a hose is detachably provided on the bending section.

[0021] Beneficial effect: By detachably arranging a hose on the bending section, the bending section can be connected to an external device through the hose. During the connection with the external device, only the bending angle of the hose needs to be adjusted without adjusting the bending section.

[0022] In an optional embodiment, a connecting flange is provided at the feed inlet of the feed pipe.

[0023] Beneficial effects: The connection flange is set at the feed port of the feed pipe, so that the feed pipe can be easily and firmly connected to the upstream equipment without the need to customize special interfaces, simplifying equipment integration and maintenance. When the feed pipe needs to be inspected, cleaned, replaced or repaired, the flange connection is easy to disassemble and reinstall quickly, shortening downtime and improving equipment availability.

[0024] In an optional embodiment, the feed pipe, the first discharge pipe and the second discharge pipe are connected in a "Y" shape.

[0025] Beneficial effects: The "Y" type connection avoids the increase in material conveying resistance caused by right-angle elbows or sharp turns, reduces energy loss during material conveying, and is beneficial to improving the energy efficiency of the entire system.

[0026] In a second aspect, the utility model also provides a pipeline switching crushing device, comprising:

[0027] The first crushing mechanism;

[0028] Second crushing mechanism;

[0029] The pipeline switching structure is that the discharge end of the first discharge pipe is connected to the first crushing mechanism, and the discharge end of the second discharge pipe is connected to the second crushing mechanism.

[0030] Beneficial effects: In the first open state of the pipeline switching crushing device, the material in the feed pipe enters the first discharge pipe through the connecting channel, and the material is transported to the discharge end of the first discharge pipe, so that the material enters the first crushing mechanism for crushing. In the second open state, the material in the feed pipe enters the second discharge pipe through the connecting channel, and the material is transported to the discharge end of the second discharge pipe, so that the material enters the second crushing mechanism for crushing. That is, by adjusting the first open state and the second open state of the switching mechanism, it is possible to transport the material from the feed pipe to the first discharge pipe or the second discharge pipe, which increases the flexibility and functionality of the pipeline system, and does not require a lot of time to replace or adjust the pipeline, thereby reducing the downtime of the production line and improving production efficiency.

[0031] In an optional embodiment, a fan is further included, which is connected to the feed pipe and is used to clean the feed pipe, the first discharge pipe and the second discharge pipe.

[0032] Beneficial effect: Before switching the first on state and the second on state, the feed pipe, the first discharge pipe and the second discharge pipe are cleaned by using a fan, the inside of the pipe is thoroughly cleaned, and the material residue inside the pipe is removed, which can effectively avoid the contamination of the previous batch of materials to the next batch of materials and ensure product quality and production safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 This is a schematic diagram of the principle of a pipeline switching structure in a first open state according to an embodiment of the utility model;

[0035] Figure 2 This is a schematic diagram of the principle of a pipeline switching structure in a second opening state according to an embodiment of the utility model;

[0036] Figure 3 It is a front view of a pipeline switching crushing device according to an embodiment of the utility model.

[0037] Description of reference numerals:

[0038] 1. Feed pipe; 2. First discharge pipe; 201. Bending section; 3. Second discharge pipe; 4. Switching mechanism; 401. Shell; 4011. Shielding part; 402. Connecting channel; 5. Rotating shaft; 6. Hose; 7. Connecting flange; 8. First crushing mechanism; 9. Second crushing mechanism. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0040] In the related art, the process of manufacturing positive electrode materials for lithium batteries mainly includes the following steps: raw material input, metering, mixing, sintering, coarse crushing, fine crushing, batching, screening, iron removal and packaging. Crushing is to reduce the particle size of materials through external force, increase the specific surface area, and help improve ion transmission and reaction rate. However, due to the differences in the characteristics of different products, when the production line needs to switch products, the crusher needs to manually switch the pipeline, resulting in reduced production efficiency.

[0041] In order to solve the above technical problems, the following Figures 1 to 3 , describing an embodiment of the utility model.

[0042] According to an embodiment of the present utility model, on the one hand, as Figure 1 and Figure 2 As shown, a pipeline switching structure is provided, including a feed pipe 1, a first discharge pipe 2, a second discharge pipe 3 and a switching mechanism 4.

[0043] Specifically, Figure 1 and Figure 2 As shown, the first discharge pipe 2 is connected to the discharge end of the feed pipe 1.

[0044] Specifically, Figure 1 and Figure 2 As shown, the second discharge pipe 3 is connected to the discharge end of the feed pipe 1 , and the second discharge pipe 3 is arranged at an angle to the first discharge pipe 2 .

[0045] Specifically, Figure 1 and Figure 2As shown, the switching mechanism 4 is arranged at the connection between the feed pipe 1, the first discharge pipe 2 and the second discharge pipe 3, and the switching mechanism 4 includes a shell 401 and a connecting channel 402, and the connecting channel 402 is opened on the shell 401, wherein the switching mechanism 4 has a first open state and a second open state.

[0046] like Figure 1 As shown, in the first open state, the first discharge pipe 2 is connected to the feed pipe 1 through the connecting channel 402, and the second discharge pipe 3 is separated from the feed pipe 1 by the housing 401. Figure 2 As shown, in the second open state, the second discharge pipe 3 is connected to the feed pipe 1 via the connecting channel 402 , and the first discharge pipe 2 is separated from the feed pipe 1 via the shell 401 .

[0047] This pipeline switching structure connects the first discharge pipe 2 and the second discharge pipe 3 to the discharge end of the feed pipe 1, so that the material in the feed pipe 1 can flow out from the discharge end of the first discharge pipe 2 or the second discharge pipe 3. The switching mechanism 4 is set at the connection between the feed pipe 1, the first discharge pipe 2 and the second discharge pipe 3. In the first open state, the material in the feed pipe 1 enters the first discharge pipe 2 through the connecting channel 402, and the material is transported to the discharge end of the first discharge pipe 2. Since the second discharge pipe 3 and the feed pipe 1 are separated by the shell 401, the material in the feed pipe 1 cannot be transported to the second discharge pipe 3. In the second open state, the material in the feed pipe 1 enters the second discharge pipe 3 through the connecting channel 402, and the material is transported to the discharge end of the second discharge pipe 3. Since the first discharge pipe 2 and the feed pipe 1 are separated by the shell 401, the material in the feed pipe 1 cannot be transported to the first discharge pipe 2. That is, by adjusting the first open state and the second open state of the switching mechanism 4, it is possible to transport the material from the feed pipe 1 to the first discharge pipe 2 or the second discharge pipe 3, thereby increasing the flexibility and functionality of the pipeline system, and eliminating the need to spend a lot of time on pipeline replacement or adjustment, thereby reducing production line downtime and improving production efficiency.

[0048] Specifically, the feed pipe 1, the first discharge pipe 2, and the second discharge pipe 3 can be existing conveying pipes such as square tubes and round tubes. In the embodiments of the present application, there is no specific restriction on the types of the feed pipe 1, the first discharge pipe 2, and the second discharge pipe 3.

[0049] Specifically, the switching mechanism 4 may change the position of the connecting channel 402 by translation, or may change the position of the connecting channel 402 by rotation. In the embodiment of the present application, the adjustment method of the switching mechanism 4 is not specifically limited.

[0050] Specifically, the shape of the shell 401 can be adaptively set according to the internal shapes of the feed pipe 1, the first discharge pipe 2, and the second discharge pipe 3. In the embodiment of the present application, the shape of the shell 401 is not specifically limited.

[0051] In one embodiment, Figure 1 and Figure 2 As shown, the switching mechanism 4 is rotatably arranged in the feed pipe 1 .

[0052] The switching mechanism 4 is rotatably arranged in the feed pipe 1. The switching mechanism 4 can be switched between the first open state and the second open state by rotating the switching mechanism 4. The connection switching between the feed pipe 1 and the first discharge pipe 2 or the second discharge pipe 3 can be quickly realized. The structure is simple and the operation is easy and quick.

[0053] Specifically, the rotational connection method between the switching mechanism 4 and the feed pipe 1 can be achieved through existing rotational connection methods such as hinge connection, bearing connection, etc. In the embodiment of the present application, the rotational connection method between the switching mechanism 4 and the feed pipe 1 is not specifically limited.

[0054] In one embodiment, Figure 1 and Figure 2 As shown, the housing 401 is rotatably disposed in the feed pipe 1 via the rotating shaft 5 .

[0055] The shell 401 is placed inside the pipe via the rotating shaft 5. The rotating shaft 5 is driven to rotate and thus the shell 401 is driven to rotate, so that the position of the connecting channel 402 on the shell 401 changes, so as to switch between the first open state and the second open state.

[0056] In one embodiment, Figure 1 and Figure 2 As shown, a shielding portion 4011 is provided on the housing 401, and the shielding portion 4011 is arranged in an arc shape. In the first opening state, the shielding portion 4011 is in contact with the inner wall of the second discharge pipe 3. In the second opening state, the shielding portion 4011 is in contact with the inner wall of the first discharge pipe 2.

[0057] By providing an arc-shaped shielding portion 4011 on the housing 401, when the switching mechanism 4 is in the first opening state, the arc-shaped shielding portion 4011 can better fit with the inner wall of the second discharge pipe 3, ensure the sealing between the second discharge pipe 3 and the shielding portion 4011, and prevent the material in the feed pipe 1 from entering the second discharge pipe 3. Similarly, when the switching mechanism 4 is in the second opening state, the arc-shaped shielding portion 4011 can better fit with the inner wall of the first discharge pipe 2, ensure the sealing between the first discharge pipe 2 and the shielding portion 4011, and prevent the material in the feed pipe 1 from entering the first discharge pipe 2.

[0058] In one embodiment, Figure 1 and Figure 2 As shown, a bending section 201 is provided at the discharge end of the first discharge pipe 2 and the second discharge pipe 3 .

[0059] A bending section 201 is provided at the discharge end of the first discharge pipe 2 and the second discharge pipe 3, so that the first discharge pipe 2 or the second discharge pipe 3 can be connected to an external device through the bending section 201. The bending section 201 can effectively relieve the stress of the first discharge pipe 2 and the second discharge pipe 3, reduce the risk of leakage at the connection caused by the bending of the first discharge pipe 2 and the second discharge pipe 3, and improve the sealing performance of the system.

[0060] In one embodiment, Figure 3 As shown, the hose 6 is detachably provided on the bent section 201 .

[0061] By detachably arranging the hose 6 on the bending section 201 , the bending section 201 can be connected to an external device through the hose 6 . During the connection with the external device, only the bending angle of the hose 6 needs to be adjusted without adjusting the bending section 201 .

[0062] Specifically, the diameter of the hose 6 can be set to match the diameter of the bending section 201, so that the hose 6 can be detachably set on the bending section 201. In the embodiment of the present application, there is no specific restriction on the type of the hose 6. Similarly, the hose 6 can be detachably set on the bending section 201, and the hose 6 can be installed on the bending section 201 by existing detachable methods such as clamps and buckles. In the embodiment of the present application, there is no specific restriction on the detachable method of the hose 6 and the bending section 201.

[0063] In one embodiment, Figure 1 and Figure 2 As shown, a connecting flange 7 is provided at the feed inlet of the feed pipe 1 .

[0064] The connection flange 7 is arranged at the feed port of the feed pipe 1, so that the feed pipe 1 can be conveniently connected to the upstream equipment quickly and stably without the need to customize a special interface, simplifying the equipment integration and maintenance work. When the feed pipe 1 needs to be inspected, cleaned, replaced or repaired, the flange connection is convenient for quick disassembly and reinstallation, shortening the downtime and improving the availability of the equipment.

[0065] In one embodiment, Figure 1 and Figure 2 As shown, the feed pipe 1, the first discharge pipe 2 and the second discharge pipe 3 are connected in a "Y" shape.

[0066] The "Y" type connection avoids the increase in material conveying resistance caused by right-angle elbows or sharp turns, reduces energy loss during material conveying, and is beneficial to improving the energy efficiency of the entire system.

[0067] According to an embodiment of the present utility model, on the other hand, Figure 3 As shown, a pipeline switching crushing device is also provided, including a first crushing mechanism 8, a second crushing mechanism 9 and a pipeline switching structure.

[0068] Specifically, the discharge end of the first discharge pipe 2 is communicated with the first pulverizing mechanism 8 , and the discharge end of the second discharge pipe 3 is communicated with the second pulverizing mechanism 9 .

[0069] In this pipeline switching crushing device, in the first open state, the material in the feed pipe 1 enters the first discharge pipe 2 through the connecting channel 402, and the material is transported to the discharge end of the first discharge pipe 2, so that the material enters the first crushing mechanism 8 for crushing. In the second open state, the material in the feed pipe 1 enters the second discharge pipe 3 through the connecting channel 402, and the material is transported to the discharge end of the second discharge pipe 3, so that the material enters the second crushing mechanism 9 for crushing. That is, by adjusting the first open state and the second open state of the switching mechanism 4, it is possible to realize the conveyance of the material from the feed pipe 1 to the first discharge pipe 2 or the second discharge pipe 3, which increases the flexibility and functionality of the pipeline system, and does not need to spend a lot of time on pipeline replacement or adjustment, thereby reducing the downtime of the production line and improving production efficiency.

[0070] Specifically, the first pulverizing mechanism 8 can select existing pulverizing mechanisms such as air flow pulverizers, and the second pulverizing mechanism 9 can select existing pulverizing mechanisms such as mechanical pulverizers. In the embodiment of the present application, there is no specific restriction on the types of the first pulverizing mechanism 8 and the second pulverizing mechanism 9.

[0071] In one embodiment, a fan (not shown in the figure) is also included, which is connected to the feed pipe 1 and is used to clean the feed pipe 1, the first discharge pipe 2 and the second discharge pipe 3.

[0072] Before switching the first on state to the second on state, the feed pipe 1, the first discharge pipe 2 and the second discharge pipe 3 are cleaned by using a fan to thoroughly clean the inside of the pipes and remove the material residues inside the pipes, thereby effectively avoiding the contamination of the next batch of materials by the previous batch of materials and ensuring product quality and production safety.

[0073] Specifically, the fan may be a centrifugal fan, an axial flow fan or other existing fan mechanisms. In the embodiments of the present application, no specific limitation is imposed on the type of the fan.

[0074] The working principle of the pipeline switching crushing device in this embodiment is described as follows:

[0075] When the switching mechanism 4 is in the first opening state, the material in the feed pipe 1 enters the first discharge pipe 2 through the connecting channel 402, and the material is transported to the discharge end of the first discharge pipe 2, so that the material enters the first crushing mechanism 8 for crushing. In the second opening state, the material in the feed pipe 1 enters the second discharge pipe 3 through the connecting channel 402, and the material is transported to the discharge end of the second discharge pipe 3, so that the material enters the second crushing mechanism 9 for crushing.

[0076] If it is necessary to switch the switching mechanism 4 to the second on state, before switching to the second on state, first stop feeding into the first crushing mechanism 8 and delay for a period of time to ensure that all the remaining materials in the feed pipe 1 and the first discharge pipe 2 are discharged, then turn on the fan to convey air to the feed pipe 1 and the first discharge pipe 2, thoroughly clean the inside of the pipe, remove the material residue inside the pipe, and then switch the switching mechanism 4 to the second on state, the material in the feed pipe 1 enters the second discharge pipe 3 through the connecting channel 402, and the material is transported to the discharge end of the second discharge pipe 3, so that the material enters the second crushing mechanism 9 for crushing.

[0077] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A pipeline switching structure, characterized in that: include: Feed pipe (1); A first discharge pipe (2) connected to the discharge end of the feed pipe (1); A second discharge pipe (3), connected to the discharge end of the feed pipe (1) and arranged at an angle to the first discharge pipe (2); A switching mechanism (4) is provided at the connection between the feed pipe (1), the first discharge pipe (2) and the second discharge pipe (3), the switching mechanism (4) comprising a shell (401) and a connecting passage (402) provided on the shell (401), and the switching mechanism (4) has a first open state and a second open state; In the first open state, the first discharge pipe (2) is connected to the feed pipe (1) via the connecting passage (402), and the second discharge pipe (3) is separated from the feed pipe (1) via the shell (401); in the second open state, the second discharge pipe (3) is connected to the feed pipe (1) via the connecting passage (402), and the first discharge pipe (2) is separated from the feed pipe (1) via the shell (401).

2. The pipeline switching structure according to claim 1, characterized in that: The switching mechanism (4) is rotatably arranged in the feeding pipe (1).

3. The pipeline switching structure according to claim 2, characterized in that: The housing (401) is rotatably disposed in the feed pipe (1) via a rotating shaft (5).

4. The pipeline switching structure according to claim 2, characterized in that: The shell (401) is provided with a shielding portion (4011), and the shielding portion (4011) is arc-shaped. In the first open state, the shielding portion (4011) fits against the inner wall of the second discharge pipe (3), and in the second open state, the shielding portion (4011) fits against the inner wall of the first discharge pipe (2).

5. The pipeline switching structure according to claim 2, characterized in that: The first discharge pipe (2) and the second discharge pipe (3) are both provided with a bending section (201) at the discharge ends.

6. The pipeline switching structure according to claim 5, characterized in that: The bending section (201) is detachably provided with a hose (6).

7. The pipeline switching structure according to any one of claims 1 to 6, characterized in that: A connecting flange (7) is provided at the feed inlet of the feed pipe (1).

8. The pipeline switching structure according to any one of claims 1 to 6, characterized in that: The feed pipe (1), the first discharge pipe (2) and the second discharge pipe (3) are connected in a "Y" shape.

9. A pipeline switching crushing device, characterized in that: include: A first crushing mechanism (8); A second crushing mechanism (9); In the pipeline switching structure according to any one of claims 1 to 8, the discharge end of the first discharge pipe (2) is connected to the first crushing mechanism (8), and the discharge end of the second discharge pipe (3) is connected to the second crushing mechanism (9).

10. The pipeline switching crushing device according to claim 9, characterized in that: It also comprises a fan, which is connected to the feed pipe (1) and is used for cleaning the feed pipe (1), the first discharge pipe (2) and the second discharge pipe (3).

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