Tunnel waste slag crushing and screening device

Abstract

The utility model belongs to the technical field of tunnel construction, and discloses a tunnel waste slag crushing and screening device which can automatically carry out primary crushing and multiple screening circular treatment on materials through cooperation of a crushing assembly and a screening assembly. Wherein the cooperative work of the driving crushing roller and the driven crushing rollers ensures that materials are fully crushed, the vibration driving part drives the box body to vibrate, unqualified materials which do not meet the grading requirement are effectively separated out and sent to the discharging opening, and the unqualified materials are directly recycled through the material returning part and sent to the feeding opening again to be treated again. Therefore, the tunnel waste slag crushing and screening device ensures the quality of discharged materials, meets the strict requirements of roadbed filling construction on the materials, can automatically screen and recover unqualified materials, crush the materials again, ensure that the discharged materials meet the grading requirements and reuse the waste tunnel waste slag, and is simple in structure, easy to operate, convenient to maintain and low in cost. And the cost is low.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, and in particular to a tunnel waste crushing and screening device. Background Technology

[0002] In highway construction, roadbed filling requires a large amount of materials. Currently, high-quality, high-strength waste generated during tunnel construction can be used as roadbed filling material. Through proper screening and processing, qualified tunnel waste can replace natural stone for roadbed filling. This reduces the land occupation problem caused by waste dumping and lowers the procurement cost of roadbed filling materials. At the same time, using tunnel waste to replace natural resources reduces the mining of sand and gravel, thus saving resources.

[0003] However, current crushing equipment often suffers from inconsistent output particle size and inability to meet gradation requirements during ore crushing. Operators need to manually collect and re-crush substandard materials, which is time-consuming, labor-intensive, and severely impacts work efficiency. Furthermore, most existing crushing equipment has a complex structure, including multiple large mechanical components, making maintenance and repair difficult and costly. Utility Model Content

[0004] The purpose of this utility model is to provide a tunnel waste crushing and screening device that can automatically screen and recycle unqualified materials for further crushing to ensure that the output meets the gradation requirements. At the same time, the device has a simple structure, is easy to operate, convenient to maintain, and has a low cost.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A tunnel waste crushing and screening device includes a housing, with a feeding port at the top and a discharging channel at the bottom. The device further comprises:

[0007] The crushing assembly includes an active crushing roller, multiple driven crushing rollers, and a first drive motor. The active crushing roller and the multiple driven crushing rollers are located between the feed inlet and the discharge channel. The output end of the first drive motor is connected to the active crushing roller to drive the active crushing roller to rotate the multiple driven crushing rollers.

[0008] A screening assembly includes a screening element, a vibration drive element, and a return element. The screening element is disposed inside the housing and located between the crushing assembly and the feeding channel. A discharge port is provided on the side plate of the housing and is located between the screening element and the crushing assembly. The return element is disposed on one side of the housing. The output end of the vibration drive element is connected to the housing to drive the housing to vibrate. Material that does not pass through the screening element can be discharged through the discharge port to the return element and then conveyed from the discharge port to the feeding port via the return element.

[0009] Furthermore, the screening component is inclinedly disposed inside the box, and the height of the screening component gradually increases from one side of the discharge port to the opposite side of the discharge port.

[0010] Furthermore, the screening component includes a screen mesh, which is detachably connected to the housing.

[0011] Furthermore, the active crushing roller and the plurality of driven crushing rollers are positioned adjustablely on the housing.

[0012] Furthermore, the active crushing roller is engaged with a plurality of the driven crushing rollers.

[0013] Furthermore, the return material component includes a second drive motor, a return material cylinder, and a spiral blade rod. The return material cylinder is disposed on one side of the housing. The top end of the return material cylinder is connected to the feed port, and the bottom end of the return material cylinder is connected to the discharge port. The spiral blade rod is rotatably connected to the inside of the return material cylinder. The output end of the second drive motor is connected to the spiral blade rod to drive the spiral blade rod to rotate.

[0014] Furthermore, a return channel is provided at the top of the box body, the return channel is staggered from the feed port, and the top of the return cylinder is connected to the return channel.

[0015] Furthermore, the material feeding channel is configured as a ramp, and the height of the ramp gradually increases from the outside of the box to the inside of the box.

[0016] Furthermore, the tunnel waste crushing and screening device also includes a collection box, which is detachably disposed on one side of the box body and located at the lower edge of the ramp, for collecting the material passing through the screening component.

[0017] Furthermore, the enclosure also includes a base and a vibration damping component. The base is located at the bottom of the enclosure and can be fixedly connected to the ground. The vibration damping component is located between the base and the enclosure.

[0018] The beneficial effects of this utility model are:

[0019] This invention provides a tunnel waste crushing and screening device. Through the coordinated operation of the crushing and screening components, it can automatically perform initial crushing and multiple screening cycles on materials, efficiently crushing and grading tunnel waste, automatically screening and recovering unqualified materials, and ensuring that the output meets the required gradation requirements. The coordinated work of the active crushing roller and multiple driven crushing rollers ensures thorough crushing of the materials. The combination of the screening component and the vibration drive component ensures accurate gradation of the materials, while the vibration drive component drives the vibration of the housing, enhancing the screening efficiency. The qualified materials are smoothly output through the feeding channel, effectively separating the unqualified materials that do not meet the gradation requirements to the discharge port. These unqualified materials are then directly recovered by the return component and fed back into the feeding port for further processing, avoiding waste of waste materials and achieving sustainable resource recycling. At the same time, the device realizes automatic recycling of unqualified materials, reducing the need for human intervention and improving the automation level and production efficiency of the device. Therefore, the tunnel waste crushing and screening device ensures the quality of the output material, meets the strict requirements of roadbed filling construction for materials, can automatically screen and recycle unqualified materials, and perform further crushing to ensure that the output material meets the gradation requirements, reuses abandoned tunnel waste, and at the same time, the device has a simple structure, is easy to operate, convenient to maintain, and has a low cost. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the tunnel waste crushing and screening device of this utility model from one perspective;

[0021] Figure 2 This is a structural schematic diagram of the tunnel waste crushing and screening device of this utility model from another perspective;

[0022] Figure 3 This is a schematic diagram of the internal structure of the tunnel waste crushing and screening device of this utility model.

[0023] In the picture:

[0024] 1. Box body; 11. Feeding port; 12. Discharge channel; 13. Discharge port; 14. Return channel;

[0025] 2. Crushing assembly; 21. Active crushing roller; 22. Driven crushing roller; 23. First drive motor;

[0026] 3. Screening assembly; 31. Screening component; 32. Vibration drive component; 33. Return component; 331. Second drive motor; 332. Return cylinder; 333. Spiral blade rod;

[0027] 4. Material collection box; 5. Base; 6. Vibration damping components. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0032] Please refer to Figures 1 to 3As shown, this utility model provides a tunnel waste crushing and screening device, which can automatically screen and recycle unqualified materials for further crushing to ensure that the output meets the gradation requirements. The device has a simple structure, is easy to operate and maintain, and has low cost. The tunnel waste crushing and screening device includes a housing 1, a crushing component 2, and a screening component 3. The housing 1 has a feed inlet 11 at its top and a discharge channel 12 at its bottom. The crushing component 2 includes an active crushing roller 21, multiple driven crushing rollers 22, and a first drive motor 23. The active crushing roller 21 and the multiple driven crushing rollers 22 are located between the feed inlet 11 and the discharge channel 12. The output of the first drive motor 23 is connected to the active crushing roller 21 to drive the active crushing roller 21 to rotate the multiple driven crushing rollers 22. The screening component 3... It includes a screening component 31, a vibration drive component 32, and a return component 33; the screening component 31 is disposed inside the housing 1 and is located between the crushing component 2 and the discharge channel 12; a discharge port 13 is provided on the side plate of the housing 1, and the discharge port 13 is located between the screening component 31 and the crushing component 2; the return component 33 is disposed on one side of the housing 1; the output end of the vibration drive component 32 is connected to the housing 1 to drive the housing 1 to vibrate, and the material that does not pass through the screening component 31 can be discharged through the discharge port 13 to the return component 33, and then conveyed from the discharge port 13 to the feed port 11 via the return component 33.

[0033] Through the coordinated operation of the crushing component 2 and the screening component 3, the material can be automatically crushed and screened in multiple stages, efficiently crushing and classifying tunnel waste, automatically screening and recycling unqualified materials, and ensuring that the output meets the required gradation requirements. The coordinated operation of the active crushing roller 21 and multiple driven crushing rollers 22 ensures that the material is fully crushed. The combination of the screening component 31 and the vibration drive component 32 ensures accurate gradation of the material, and the vibration drive component 32 drives the vibration of the housing 1, which enhances the screening efficiency. The qualified material is smoothly output through the feeding channel 12, and the unqualified material that does not meet the gradation requirements is effectively separated to the discharge port 13. The unqualified material is directly recycled through the return component 33 and sent back to the feeding port 11 for further processing, avoiding the waste of waste materials and realizing sustainable resource recycling. At the same time, the device realizes the automatic recycling of unqualified materials, reduces the need for human intervention, and improves the automation level and production efficiency of the device. Therefore, the tunnel waste crushing and screening device ensures the quality of the output material, meets the strict requirements of roadbed filling construction for materials, can automatically screen and recycle unqualified materials, and perform further crushing to ensure that the output material meets the gradation requirements, reuses abandoned tunnel waste, and at the same time, the device has a simple structure, is easy to operate, convenient to maintain, and has a low cost.

[0034] like Figure 3As shown, in order to improve the recycling efficiency of unqualified materials, in some embodiments, the screening element 31 is inclinedly arranged inside the box 1, and the height of the screening element 31 gradually increases from one side of the discharge port 13 to the opposite side of the discharge port 13. By inclinedly arranging the screening element 31 inside the box 1 towards the discharge port 13, some of the material that does not pass through the screening element 31 can slide directly to the discharge port 13 and enter the return material 33 by its own gravity. Therefore, the inclined design of the screening element 31 allows the unqualified material to slide down naturally by gravity. Combined with the vibration of the vibration drive 32, the efficiency of unqualified material being discharged to the return material 33 is further improved, making the return process smoother and more efficient. At the same time, due to the inclination of the screening element 31, the flow path of the material during the screening process is smoother and will not stagnate on the screen, reducing the risk of screen blockage and contributing to the continuous and stable operation of the equipment.

[0035] Continue as Figure 3 As shown, in order to improve the flexibility and adaptability of the tunnel waste crushing and screening device, in some embodiments, the screening component 31 includes a screen mesh, which is detachably connected to the housing 1. The detachable screen mesh design makes screen mesh replacement more flexible, and the screen mesh aperture can be adjusted as needed to adapt to screening tasks with different particle size requirements, thereby improving the versatility of the equipment. At the same time, this also makes the maintenance and cleaning of the device more convenient. Operators can easily remove the screen mesh for cleaning, unclogging, and replacement, ensuring that the screen mesh maintains good performance and avoiding affecting the screening efficiency.

[0036] Furthermore, the active crushing roller 21 and multiple driven crushing rollers 22 are adjustablely positioned on the housing 1. By adjusting the distance between the active crushing roller 21 and the driven crushing rollers 22, the working state of the crushing rollers can be adjusted according to the size or hardness of the material to meet the needs of various material processing. It can also precisely control the force on the material during the crushing process, improve crushing efficiency, and reduce unnecessary energy consumption and material loss. The adjustable design also makes it easier to maintain or replace the active crushing roller 21 and the driven crushing rollers 22 without disassembling the entire device, reducing maintenance difficulty and downtime, and improving operational convenience. Specifically, multiple limiting holes or limiting grooves can be opened on the inner wall of the housing 1. The active crushing roller 21 and the driven crushing roller 22 can be selectively connected to different limiting holes or limiting grooves according to actual working conditions to achieve positional adjustment. Furthermore, the active crushing roller 21 is meshed with multiple driven crushing rollers 22. Through this meshing connection, the active crushing roller 21 drives the multiple driven crushing rollers 22 to operate synchronously, ensuring that all crushing rollers apply crushing force to the material at the same time, thereby improving crushing efficiency and consistency. This ensures that the material is squeezed and crushed simultaneously in multiple directions, increasing the contact area between the material and the crushing rollers, thus achieving uniform crushing and ensuring that the crushed material particles are more uniform in size, meeting production requirements.

[0037] Continue as Figure 3 As shown, in order to improve the material return efficiency of the return component 33, in some embodiments, the return component 33 includes a second drive motor 331, a return cylinder 332, and a spiral blade rod 333. The return cylinder 332 is disposed on one side of the housing 1. The top end of the return cylinder 332 is connected to the feed port 11, and the bottom end of the return cylinder 332 is connected to the discharge port 13. The spiral blade rod 333 is rotatably connected to the inside of the return cylinder 332. The output end of the second drive motor 331 is connected to the spiral blade rod 333 so as to drive the spiral blade rod 333 to rotate. Through the rotation of the spiral blade rod 333, the unqualified material is transported from the discharge port 13 back to the feed port 11, realizing the automatic material return of the device, ensuring that the unqualified material can re-enter the crushing and screening process without manual intervention, thus improving the automation level and production efficiency of the equipment. The stable rotation of the spiral blade rod 333 can realize the continuous conveying of materials, ensuring the continuity of material return, avoiding interruptions in the production process, and helping to maintain a high-efficiency and continuous working state.

[0038] Combination Figure 2 and Figure 3 As shown, in order to optimize the material circulation path, in some embodiments, a return channel 14 is provided at the top of the box 1. The return channel 14 is staggered from the feed port 11. The top of the return cylinder 332 is connected to the return channel 14, so that the material that has not passed through the screening element 31 can re-enter the box 1 through the return channel 14. By staggering the return channel 14 from the feed port 11, when the material enters the device through the return channel 14, it can avoid interference from the newly fed material, ensure the rapid processing of the returned material, speed up the circulation processing speed, and improve the overall processing efficiency of the equipment. At the same time, it can also ensure that the newly fed material and the returned material will not accumulate in the same position, prevent material blockage or overload, ensure smoother material flow in the equipment, and improve production efficiency.

[0039] Combination Figure 2 and Figure 3 As shown, in some embodiments, the feeding channel 12 is configured as a ramp, with the ramp height gradually increasing from the outside of the box 1 to the inside of the box 1. Through the ramp design, qualified materials can smoothly slide down under their own weight, reducing material retention and accumulation within the feeding channel 12, improving feeding efficiency, and ensuring the continuity of the production process. Furthermore, the tunnel waste crushing and screening device also includes a collection box 4, which is detachably mounted on one side of the box 1 and located at the lower edge of the ramp. This collection box collects materials passing through the screening components. By positioning the collection box 4 at the lower edge of the ramp, materials sliding down from the ramp can be collected directly, preventing materials from scattering around the device, maintaining a clean working environment, and facilitating subsequent processing or transportation. Simultaneously, the detachable design of the collection box 4 allows operators to quickly remove the box and move the collected materials to a designated location for processing or transfer, improving production efficiency.

[0040] like Figure 1 As shown, in some embodiments, the housing 1 further includes a base 5 and a vibration damper 6. The base 5 is located at the bottom of the housing 1 and can be fixedly connected to the ground. The vibration damper 6 is located between the base 5 and the housing 1. The vibration damper 6, located between the base 5 and the housing 1, can effectively absorb and isolate the vibration generated during the operation of the device, preventing the vibration from being transmitted to the ground or the surrounding environment, thus protecting the equipment and facilities. By setting the vibration damper 6 between the base 5 and the housing 1, the transmission of mechanical vibration and impact force is effectively reduced, significantly reducing the vibration impact inside the housing 1 caused by changes in the external environment. This not only protects the components inside the housing 1 from damage but also extends the service life of the tunnel waste crushing and screening device, ensuring the efficient and stable operation of the device. The base 5 and the ground can be fixed by anchor bolts, but are not limited to this; the vibration damper 6 can be, but is not limited to, multiple spring dampers or rubber pads, etc., but are not limited to this.

[0041] It should be noted that the first drive motor 23 and the second drive motor 331 may be, but are not limited to, DC motors, etc., and no specific limitation is made here.

[0042] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A tunnel waste crushing and screening device, comprising a box body (1), wherein a feeding port (11) is provided at the top of the box body (1), and a feeding channel (12) is provided at the bottom of the box body (1), characterized in that, The tunnel spoil crushing and screening device also includes: The crushing assembly (2) includes an active crushing roller (21), a plurality of driven crushing rollers (22) and a first drive motor (23). The active crushing roller (21) and the plurality of driven crushing rollers (22) are located between the feed inlet (11) and the discharge channel (12). The output end of the first drive motor (23) is connected to the active crushing roller (21) to drive the active crushing roller (21) to drive the plurality of driven crushing rollers (22) to rotate. The screening assembly (3) includes a screening component (31), a vibration drive component (32), and a return component (33). The screening component (31) is disposed inside the box (1) and located between the crushing assembly (2) and the feeding channel (12). A discharge port (13) is provided on the side plate of the box (1) and is located between the screening component (31) and the crushing assembly (2). The return component (33) is disposed on one side of the box (1). The output end of the vibration drive component (32) is connected to the box (1) to drive the box (1) to vibrate. Material that does not pass through the screening component (31) can be discharged through the discharge port (13) to the return component (33) and then conveyed from the discharge port (13) to the feeding port (11) via the return component (33).

2. The tunnel spoil crushing and screening device according to claim 1, characterized in that, The screening component (31) is inclinedly disposed inside the box (1), and the height of the screening component (31) gradually increases from the side of the discharge port (13) to the opposite side of the discharge port (13).

3. The tunnel spoil crushing and screening device according to claim 2, characterized in that, The screening component (31) includes a screen that is detachably connected to the housing (1).

4. The tunnel spoil crushing and screening device according to claim 3, characterized in that, The active crushing roller (21) and the plurality of driven crushing rollers (22) are arbitrarily positioned on the housing (1).

5. The tunnel spoil crushing and screening device according to claim 4, characterized in that, The active crushing roller (21) is engaged with a plurality of the driven crushing rollers (22).

6. The tunnel spoil crushing and screening device according to claim 1, characterized in that, The return component (33) includes a second drive motor (331), a return cylinder (332), and a spiral blade rod (333). The return cylinder (332) is located on one side of the housing (1). The top end of the return cylinder (332) is connected to the feed port (11), and the bottom end of the return cylinder (332) is connected to the discharge port (13). The spiral blade rod (333) is rotatably connected to the inside of the return cylinder (332). The output end of the second drive motor (331) is connected to the spiral blade rod (333) to drive the spiral blade rod (333) to rotate.

7. The tunnel spoil crushing and screening device according to claim 6, characterized in that, The top of the box (1) is provided with a return channel (14), which is offset from the feed port (11). The top of the return cylinder (332) is connected to the return channel (14).

8. The tunnel spoil crushing and screening device according to any one of claims 1-7, characterized in that, The material feeding channel (12) is configured as a ramp, and the height of the ramp gradually increases from the outside of the box (1) to the inside of the box (1).

9. The tunnel spoil crushing and screening device according to claim 8, characterized in that, The tunnel waste crushing and screening device also includes a collection box (4), which is detachably disposed on one side of the box (1) and located at the lower edge of the ramp, for collecting the material passing through the screening component (31).

10. The tunnel spoil crushing and screening device according to claim 9, characterized in that, The housing (1) also includes a base (5) and a vibration damping component (6). The base (5) is located at the bottom of the housing (1) and can be fixedly connected to the ground. The vibration damping component (6) is located between the base (5) and the housing (1).

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