An ecological restoration device for red mud stockpile

Abstract

This application relates to the technical field of red mud stockpile management, and more particularly to an ecological restoration device for red mud stockpiles. The device includes a frame, on which, from front to back, are sequentially mounted a soil-turning mechanism, a lifting mechanism, a crushing mechanism, and a straw-sorting mechanism. The soil-turning mechanism turns the soil, and the lifting mechanism then transports the soil to the crushing mechanism. The crushed soil falls into the straw-sorting mechanism, which includes a long trough. The long trough is arranged along the length of the frame and slidably connected to it. The sliding direction of the long trough is perpendicular to its length. The crushing mechanism is positioned above one end of the long trough, and the other end of the long trough is inclined upwards. The long trough reciprocates on the frame, and the straw within it moves along the trough as it reciprocates. This application achieves the effect of directional mixing of straw within the red mud, resulting in a porous structure extending downwards from the surface of the red mud.

Description

Technical Field

[0001] This application relates to the technical field of red mud stockpile management, and in particular to an ecological restoration device for red mud stockpile sites. Background Technology

[0002] Red mud is a solid waste generated during the alumina industrial production process. Generally, 1.5 tons of red mud are generated during the production of 1 ton of alumina. The comprehensive utilization rate of red mud is low, and large quantities are simply piled up for storage. Therefore, currently, the majority of red mud is still stored in stockpiles. After a series of processing steps, the accumulated red mud forms a special "soil" with significantly different physicochemical properties from normal "soil" on which plants depend. Red mud typically has a pH value between 10 and 12, is highly saline and alkaline, and has extremely fine particles with low viscosity. When it comes into contact with rainwater, it becomes a thin mud, severely compacted, and has poor aeration, which is extremely detrimental to plant growth. This leads to the overall desertification of red mud storage sites, where virtually no vegetation grows, seriously impacting the local ecological environment. Furthermore, the fine particles of red mud easily generate dust during dry seasons, causing air and surrounding environmental pollution.

[0003] In order to make the surface of red mud in the red mud dump suitable for planting, the soil needs to be modified. This involves soilification of the red mud to create pores inside the red mud. These pores are mainly for the plants planted on the red mud surface to breathe at the roots. During the modification process, wheat straw needs to be added to the red mud. The wheat straw is then mixed with the red mud and the mixture is turned over using a rotary tiller to break up the wheat straw and mix it with the broken red mud.

[0004] However, during the process of adding wheat straw, the length and direction of the wheat straw are quite irregular, making it difficult to accurately form a porous structure from the surface of the red mud downwards. Summary of the Invention

[0005] In order to make the mixing of straw in red mud more directional and to more accurately extend the pore structure from the surface of red mud downwards, this application provides an ecological restoration device for red mud dumps.

[0006] This application provides an ecological restoration device for red mud dumps, which adopts the following technical solution:

[0007] An ecological restoration device for red mud dumps includes a frame. From front to back, a soil-turning mechanism, a lifting mechanism, a crushing mechanism, and a straw-sorting mechanism are sequentially installed on the frame. The soil-turning mechanism turns the soil, and the lifting mechanism then transports the soil to the crushing mechanism. The crushing mechanism breaks up the soil, which then falls into the straw-sorting mechanism. The straw-sorting mechanism includes a long trough, which is arranged along the length of the frame and slidably connected to it. The sliding direction of the trough is perpendicular to the trough. The crushing mechanism is positioned above the end of the trough, and the other end of the trough is inclined upwards. The trough reciprocates on the frame, and the straw within it moves along the trough as it moves.

[0008] By adopting the above technical solution, during use, the vehicle frame moves under the action of the trailer. The soil-turning mechanism at the front of the vehicle frame turns the soil, causing the lifting mechanism to transport the soil to the crushing mechanism. The crushing mechanism breaks the soil into smaller particles, which then flow out of the crushing mechanism and into the straw combing mechanism. The straw combing mechanism includes a long trough that is slidably connected to the vehicle frame. The long trough slides along a direction perpendicular to the long trough, causing the straw in the long trough to be arranged along the direction of the long trough. Then, at the end of the long trough, it mixes with the soil particles falling from the crushing mechanism. Due to the shaking of the long trough, the soil particles can enter into the straw. When one end of the straw slides out of the long trough and falls, the straw will be arranged at an angle in the soil, which makes the mixing of straw in the red mud more directional and better extends the formed pore structure from the surface of the red mud downwards.

[0009] Preferably, the frame is equipped with a cutting mechanism, which includes a storage box, a straw feeding component, and a cutting component. The storage box is used to hold straw, and one end of the storage box is provided with a discharge port. The straw feeding component pushes the straw in the storage box to move towards the discharge port. The cutting component is located at the discharge port to cut the straw. The elongated groove is located below the discharge port to receive the cut straw.

[0010] By adopting the above technical solution, the storage box is used to store straw. The straw is relatively long. Then, the straw feeding component moves the straw to the discharge port. Then, the cutting component cuts the straw to a length of 5-8cm so that the straw can be arranged in the red mud in a directional manner.

[0011] Preferably, the cutting assembly includes a cutting machine, and a translation component for driving the cutting machine to move horizontally and a lifting component for driving the cutting machine to move vertically are provided on the frame, and a saw blade is installed on the cutting machine.

[0012] By adopting the above technical solution, a saw blade is installed on the cutting machine. At the same time, the cutting machine moves horizontally through the translation component and moves vertically through the lifting component, so that the cutting machine can cut straw at different positions, thereby reducing the size of the saw blade, saving costs, reducing the overall size, and making it easier to misalign the saw blade with the discharge port so that the straw can extend out of the discharge port.

[0013] Preferably, the translation component includes a horizontal screw and a horizontal guide rod, which are arranged in parallel. The ends of the horizontal guide rods of the horizontal screw and the horizontal guide rod are provided with vertically sliding blocks connected to the frame. The horizontal screw is threadedly connected to the base of the cutting machine, and the horizontal guide rod is slidably connected to the base of the cutting machine. The horizontal screw is used to drive the cutting machine to move horizontally.

[0014] By adopting the above technical solution, the horizontal screw is threadedly connected to the base of the cutter. When the horizontal screw rotates, the cutter moves horizontally under the action of the horizontal screw and the horizontal guide rod, so that the cutter can move to any position and be fixed under the action of the horizontal screw, which facilitates the cutting of straw.

[0015] Preferably, the lifting assembly includes a swing arm, a worm gear, a worm wheel, and a drive motor. One end of the swing arm is rotatably connected to the frame. The worm wheel is coaxially fixed to the swing arm. The drive motor is fixed to the frame. The worm gear is coaxially fixed to the output shaft of the drive motor. The worm gear meshes with the worm wheel. A sliding groove is provided on the swing arm along the length direction of the swing arm. The moving block is stuck in the sliding groove.

[0016] By adopting the above technical solution, the drive motor drives the worm to rotate, and the worm meshes with the worm wheel, thereby causing the worm wheel to drive the swing arm to rotate. When the worm drives the swing arm to rotate, the sliding block on the swing arm is driven to move in the vertical direction by the sliding groove. At the same time, when the drive motor stops, the swing arm can stay at any position, improving safety.

[0017] Preferably, a drive gear is coaxially fixed at the end of the worm gear, the drive gear meshes with a driving gear, the driving gear is rotatably mounted on the frame, an eccentric shaft is eccentrically mounted on the driving gear, a driving groove is provided at one end of the elongated groove, the driving groove is vertically arranged, and one end of the eccentric shaft is inserted into the driving groove.

[0018] By adopting the above technical solution, a drive gear is coaxially fixed at the end of the worm gear. The drive gear is driven by a drive motor. By utilizing the transmission ratio between the drive gear and the drive gear, the oscillation frequency of the drive gear driving the long groove is matched with the lifting speed of the swing arm, so that the straw has enough time to be combed. As the cutting speed increases, the oscillation frequency of the long groove will also increase.

[0019] Preferably, the straw feeding assembly includes a push plate, a guide rod, and a push screw. The push plate is arranged in the storage box perpendicular to the discharge port. The guide rod is fixed in the storage box along the axis of the storage box. The push plate is slidably connected to the guide rod. The push screw is parallel to the guide rod and a push block is threaded onto the push screw. The push block is fixed on the push plate. A push motor is fixedly installed on the storage box. The output shaft of the push motor is coaxially fixed with the push screw.

[0020] By adopting the above technical solution, the pusher plate is located inside the storage box, the straw is placed inside the storage box and the pusher plate is at one end of the straw, so that when the pusher motor drives the pusher screw to rotate, the pusher screw can move the pusher block, thereby the pusher block drives the pusher plate to push the straw towards the discharge port.

[0021] Preferably, the upper part of the storage box is provided with a cover plate, one side of the cover plate is hinged to the storage box, and the lower part of the cover plate abuts against the push plate.

[0022] By adopting the above technical solution, the cover is used to place straw when it is open. When the cover is closed on the storage box, the cover presses on the straw and at the same time abuts against the push plate, so that the push plate can push all the straw towards the discharge port at the same time.

[0023] Preferably, the crushing mechanism includes a cylinder, a crushing shaft, and a crushing motor. The lower diameter of the cylinder is smaller than the upper diameter of the cylinder. The crushing shaft is vertically installed inside the cylinder. The crushing motor is fixed on the cylinder and used to drive the crushing shaft to rotate. A crushing rod is provided on the upper part of the crushing shaft, and a spiral blade that cooperates with the lower part of the cylinder is provided on the lower part of the crushing shaft.

[0024] By adopting the above technical solution, a crushing shaft is installed inside the cylinder. When the crushing motor drives the crushing shaft to rotate, the crushing rod and the spiral blade on the crushing shaft rotate simultaneously. The spiral blade is used to make the soil inside the cylinder flow out automatically according to the speed, while avoiding the flow out too fast, which would result in less soil at the crushing rod.

[0025] Preferably, a box for storing the modifier is fixedly installed on the frame, and the lower part of the box is connected to the crushing mechanism through a hose.

[0026] By adopting the above technical solution, a box is fixedly installed on the frame, and the soil conditioner inside the box is introduced into the crushing mechanism through a hose. During the crushing process of the soil, the conditioner is mixed with the soil conditioner, thereby improving the soil conditioner's effect. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0028] Figure 2This is a schematic diagram of the crushing mechanism in the embodiments of this application;

[0029] Figure 3 This is a schematic diagram showing the position of the cutting component in an embodiment of this application;

[0030] Figure 4 This is an exploded view of the connection between the drive gear and the elongated groove in an embodiment of this application;

[0031] Figure 5 This is an internal structural diagram of the storage box in an embodiment of this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Fixing ring; 12. Support wheel; 13. Box; 14. Hose; 2. Tillage mechanism; 3. Lifting mechanism; 4. Crushing mechanism; 41. Cylinder; 42. Crushing shaft; 43. Crushing motor; 44. Collection hopper; 45. Crushing rod; 46. Spiral blade; 5. Straw combing mechanism; 51. Long trough; 52. Drive gear; 53. Active gear; 54. Drive groove; 55. Eccentric shaft; 6. Cutting mechanism; 61. Storage box; 611. Discharge port; 612. Long... 62. Trough; 62. Straw feeding assembly; 621. Push plate; 622. Guide rod; 623. Push screw; 624. Push block; 625. Push motor; 63. Cutting assembly; 631. Cutting machine; 632. Saw blade; 64. Translation assembly; 641. Horizontal screw; 642. Horizontal guide rod; 643. Moving block; 6431. Cylindrical part; 65. Lifting assembly; 651. Swing arm; 6511. Slide groove; 652. Worm gear; 653. Worm wheel; 654. Drive motor; 7. Baffle; 8. Cover plate. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0034] This application discloses an ecological restoration device for red mud dumps, with reference to... Figure 1The system includes a frame 1, with a fixing ring 11 at the front for connection to a trailer. A support wheel 12 is located at the lower part of the vehicle body, at the end of the frame 1 furthest from the fixing ring 11, supporting the frame 1 and allowing it to move under the action of the trailer. The frame 1 also includes a soil-turning mechanism 2, a lifting mechanism 3, a crushing mechanism 4, and a straw-sorting mechanism 5. The soil turning mechanism 2 is located at the front of the vehicle frame 1. The soil turning mechanism 2 is used to excavate the red mud stockpile to a depth of 20-30cm. The lifting mechanism 3 is set at an angle, with one end extending to the rear of the soil turning mechanism 2. The lifting mechanism 3 is used to lift the soil excavated by the soil turning mechanism 2 upwards, so that the soil enters the crushing mechanism 4 through the lifting mechanism 3. The crushing mechanism 4 crushes the soil into the required particles. The soil then flows out of the crushing mechanism 4 and enters the straw combing mechanism 5, where the soil and straw are mixed. Then, the soil flows out of the straw combing mechanism 5 at the same time. Since the straw is oriented in the straw combing mechanism 5, one end of the straw falls first, and the other end tilts upwards. Thus, during continuous movement, the straw is buried in the soil with an upward tilt, which allows the straw to have a good aeration effect between the lower part and the surface of the soil. Furthermore, after the straw decomposes in the soil, the space left by the straw is also tilted upwards, reducing the possibility of collapse due to rainwater seepage. A box 13 is also fixedly mounted on the frame 1. The box 13 contains a soil conditioner containing organic matter, binder, water-retaining agent, and slow-release fertilizer necessary for plant growth. The box 13 is connected to the crushing mechanism 4 via a hose 14, allowing the crushing mechanism 4 to mix the soil with the conditioner during the crushing process, thereby improving the deep soil layers and promoting plant rooting and survival. A cutting mechanism 6 is also mounted on the frame 1 to cut the straw to a suitable length; in this embodiment, the cut straw length is 5-8 cm. Straw shorter than 5 cm has less vertical length, making it less likely to intertwine with other straw. Overly long straw does not mix sufficiently with the crushed soil, making it difficult to form a uniform soil-straw mixture, leading to easy separation and hindering continuous soil improvement.

[0035] refer to Figure 2The crushing mechanism 4 includes a cylinder 41, a crushing shaft 42, and a crushing motor 43. The cylinder 41 is vertically arranged, with its lower diameter smaller than its upper diameter. A collection hopper 44 is connected to the upper part of the cylinder 41, and the lower part of the collection hopper 44 is connected to the cylinder 41. The soil transported by the lifting mechanism 3 is received in the upper part of the collection hopper 44 and then enters the cylinder 41 from the collection hopper 44. Multiple crushing rods 45 are fixedly installed on the side wall of the crushing shaft 42, and the crushing rods 45 are located in the upper part of the cylinder 41. A spiral blade 46 is also fixedly installed on the crushing shaft 42. The spiral blade 46 cooperates with the lower part of the cylinder 41 to transport the soil. The spiral blade 46 can also control the falling speed of the soil, so that enough soil remains in the upper part of the cylinder 41, so that the crushing rods 45 can crush the soil by the rotation of the crushing shaft 42. The crushing motor 43 is fixed to the top of the cylinder 41, and the output shaft of the crushing motor 43 is coaxially and fixedly connected to the crushing shaft 42, so that the crushing motor 43 drives the crushing shaft 42 to rotate. The crushed soil flowing out from the lower part of the cylinder 41 enters the straw combing mechanism 5.

[0036] refer to Figure 3 The cutting mechanism 6 includes a storage box 61, a straw feeding assembly 62, and a cutting assembly 63. The storage box 61 is used to store wheat straw, and one end of the storage box 61 is provided with a discharge port 611. The straw feeding assembly 62 is used to move the wheat straw continuously in the direction of the discharge port 611. The cutting assembly 63 is located at the discharge port 611 and is used to cut the straw pushed out by the straw feeding assembly 62 to form the straw to the required length. In this embodiment, the discharge port 611 is set to be circular, but it can also be set to be square. The cutting assembly 63 includes a cutting machine 631. The frame 1 is provided with a translation assembly 64 that drives the cutting machine 631 to move horizontally along a path parallel to the discharge port 611, and a lifting assembly 65 that drives the cutting machine 631 to move vertically along a path parallel to the discharge port 611. The discharge port 611 is horizontal, and the wheat straw is automatically dropped after being cut by the cutting machine 631. Figure 1 Baffles 7 are provided on both sides of the discharge port 611. The baffles 7 are used to block the cut straw and guide the straw into the straw combing mechanism 5. The straw combing mechanism 5 is located below the discharge port 611 and the lower part of the baffles 7 extends to the upper opening of the straw combing mechanism 5.

[0037] A saw blade 632 is mounted on the cutting machine 631. The size of the saw blade 632 is smaller than the size of the discharge port 611 to reduce the size of the saw blade 632. The translation component 64 includes a horizontal screw 641 and a horizontal guide rod 642. The horizontal screw 641 and the horizontal guide rod 642 are arranged horizontally and parallel. The horizontal screw 641 is arranged horizontally and perpendicular to the orientation of the discharge port 611. Moving blocks 643 are provided at both ends of the horizontal screw 641 and the horizontal guide rod 642. The moving blocks 643 are vertically slidably connected to the frame 1. The lifting component 65 is used to drive the moving blocks 643 to move in the vertical direction. 41 is connected to the base screw of the cutting machine 631, and the horizontal guide rod 642 is slidably connected to the base of the cutting machine 631. The horizontal screw 641 needs to be connected to a servo motor so that when the horizontal screw 641 rotates, it drives the cutting machine 631 to move horizontally along the direction of the horizontal guide rod 642. Then, in conjunction with the lifting component 65, it drives the cutting machine 631 to move vertically. Thus, a smaller saw blade 632 can cut the straw at the larger discharge port 611, reducing the size of the saw blade 632 and making it easier to completely offset the saw blade 632 from the discharge port 611, so that the straw can be pushed out from the discharge port 611 at the same time.

[0038] The lifting assembly 65 includes a swing arm 651, a worm gear 652, a worm wheel 653, and a drive motor 654. The drive motor 654 is fixed on the frame 1, the worm wheel 653 is rotatably mounted on the frame 1, and one end of the swing arm 651 is coaxially fixed with the worm wheel 653. The other end of the swing arm 651 is provided with a groove 6511 along the length of the swing arm 651. The moving block 643 is provided with a cylindrical part 6431, which is inserted into the groove 6511. When the output shaft of the drive motor 654 is coaxially fixedly connected with the worm gear 652, the worm gear 652 meshes with the worm wheel 653. When the drive motor 654 drives the worm gear 652 to rotate, the worm wheel 653 drives the swing arm 651 to swing, thereby enabling the moving block 643 to be adjusted in the vertical direction. The drive motor 654 is located below the storage box 61. Due to the self-locking effect of the worm gear 652 and the worm wheel 653, the swing arm 651 can drive the cutting machine 631 to move stably. Even if the drive motor 654 stops running, the cutting machine 631 can stop at any position, reducing the occurrence of dangerous situations.

[0039] refer to Figure 3 and Figure 4The straw combing mechanism 5 includes a long groove 51, which is horizontally slidably connected to the frame 1. The sliding direction of the long groove 51 is perpendicular to the orientation of the discharge port 611, so that the straw in the long groove 51 is arranged along the length of the long groove 51. A drive gear 52 is connected to the long groove 51 and is rotatably connected to the frame 1. At the same time, a drive gear 53 is coaxially connected to the worm gear 652. The diameter of the drive gear 53 is larger than the diameter of the drive gear 52, so that the drive gear 52 meshes with the drive gear 53. When the drive gear 53 rotates, it can drive the drive gear 52 to rotate. The long trough 51 reciprocates on the frame 1, causing the straw to sway within the trough 51 and collide with the side wall of the trough 51, with its direction parallel to the trough 51. The upper part of the long trough 51 is open, making it easy for the straw to fall into the trough 51. At the same time, the crushing mechanism 4 is located above the rear part of the long trough 612, adjusting the straw to be parallel to the long trough 51 before mixing with the soil. During the vibration of the long trough 51, the soil enters into the straw. The long trough 51 is set at an angle, with the end of the long trough 51 closer to the cutter 631 being higher, so that the straw gradually moves to the other end of the long trough 51 during the swaying process. A drive groove 54 is fixedly installed at one end of the elongated groove 51. The drive groove 54 is vertically arranged, and an eccentric shaft 55 is installed on the drive gear 52. The eccentric shaft 55 is offset from the center of the drive gear 52 and is inserted into the drive groove 54, so that the elongated groove 51 can be driven to sway left and right when the drive gear 52 rotates. Since the drive motor 654 drives the cutter 631 and the elongated groove 51 simultaneously through the drive gear 53 and the worm gear 652, the cutting speed of the cutter 631 can be matched with the swaying speed of the elongated groove 51, so that the straw can be sorted in the elongated groove 51 in a timely manner. Furthermore, since the transmission between the drive gear 53 and the drive gear 52 is an acceleration, and the transmission between the worm gear 652 and the worm wheel 653 is a deceleration, the elongated groove 51 has enough time to complete the sorting of straw during the movement of the cutter 631.

[0040] refer to Figure 5The straw feeding assembly 62 includes a push plate 621, a guide rod 622, and a push screw 623. The push plate 621 is disposed inside the storage box 61. The top of the storage box 61 is open and equipped with a cover plate 8, which is rotatably connected to the storage box 61. When the cover plate 8 is on the storage box 61, it can press down on the straw. The push plate 621 is located inside the storage box 61 and is vertically arranged, perpendicular to the axis of the storage box 61. The top of the push plate 621 also supports the cover plate 8. The guide rod 622 is parallel to the axis of the storage box 61 and is fixed inside the storage box 61 and located at the top of the storage box 61, allowing the push plate 621 to be slidably connected to the guide rod 622. The push screw 623 is located below the storage box 61. A long slot 612 can be opened at the bottom of the storage box 61 so that the push block 624 threaded on the push screw 623 is fixedly connected to the push plate 621. A push motor 625 is provided at one end of the push screw 623. The push motor 625 is fixed on the storage box 61. The push motor 625 can be a servo motor or a stepper motor. The output shaft of the push motor 625 is coaxially fixed with the push screw 623. The push motor 625 can drive the push plate 621 to move along the length of the storage box 61. So when straw is placed in the storage box 61, the push plate 621 is at one end of the straw, so that the straw gradually moves towards the discharge port 611 under the action of the push plate 621.

[0041] The working process of this embodiment:

[0042] First, place the straw in the storage box 61, then cover it with the cover plate 8. Push the motor 625 to extend the straw 5cm from the discharge port 611, then drive the motor 654 to move the cutter 631 upwards, so that the cutter 631 drives the saw blade 632 to cut the straw. The cut straw falls into the long groove 51. Due to the shaking of the long groove 51, the straw is placed parallel to the long groove 51 and moves along the long groove 51. At the same time, the soil broken by the crushing mechanism 4 will fall from the crushing mechanism 4 into the long groove 51, so that the soil and straw are mixed and move along the long groove 51. When it reaches the end of the long groove 51, one end of the straw first points downwards, so that the straw will tilt upwards. When the straw is buried in the soil, it has an upward tilting direction, which makes it easier for the soil surface to form a porous structure downwards.

[0043] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An ecological restoration device for red mud dumps, characterized in that: The vehicle includes a frame (1), on which a soil turning mechanism (2), a lifting mechanism (3), a crushing mechanism (4), and a straw combing mechanism (5) are installed sequentially from front to back. The soil turning mechanism (2) turns the soil, and then the lifting mechanism (3) transports the soil to the crushing mechanism (4). The crushing mechanism (4) crushes the soil and then it falls into the straw combing mechanism (5). The straw combing mechanism (5) includes a long trough (51), which runs along the frame (1). The long strip (51) is slidably connected to the frame (1) and the sliding direction of the long strip (51) is perpendicular to the long strip (51). The upper end of the long strip (51) is used to set the crushing mechanism (4). The other end of the long strip (51) is inclined upward. The long strip (51) swings back and forth on the frame (1), and the straw in the long strip (51) moves along the long strip (51) as the long strip (51) swings. After the soil and straw are mixed, they move along the long trough (51). When they reach the end of the long trough (51), one end of the straw first goes down, so the straw will tilt upward. When the straw is buried in the soil, it has an upward tilting direction.

2. The ecological restoration device for red mud dumps according to claim 1, characterized in that: The frame (1) is provided with a cutting mechanism (6), which includes a storage box (61), a straw feeding component (62), and a cutting component (63). The storage box (61) is used to store straw, and one end of the storage box (61) is provided with a discharge port (611). The straw feeding component (62) pushes the straw in the storage box (61) to move towards the discharge port (611). The cutting component (63) is provided at the discharge port (611) to cut the straw. The long groove (51) is provided below the discharge port (611) to receive the cut straw.

3. The ecological restoration device for red mud dumps according to claim 2, characterized in that: The cutting assembly (63) includes a cutting machine (631), and a translation assembly (64) for driving the cutting machine (631) to move horizontally and a lifting assembly (65) for driving the cutting machine (631) to move vertically are provided on the frame (1). A saw blade (632) is installed on the cutting machine (631).

4. The ecological restoration device for red mud dumps according to claim 3, characterized in that: The translation component (64) includes a horizontal screw (641) and a horizontal guide rod (642). The horizontal screw (641) and the horizontal guide rod (642) are arranged in parallel, and the ends of the horizontal guide rod (642) of the horizontal screw (641) are provided with a moving block (643) that is vertically slidably connected to the frame (1). The horizontal screw (641) is threadedly connected to the base of the cutting machine (631), and the horizontal guide rod (642) is slidably connected to the base of the cutting machine (631). The horizontal screw (641) is used to drive the cutting machine (631) to move horizontally.

5. The ecological restoration device for red mud dumps according to claim 4, characterized in that: The lifting assembly (65) includes a swing arm (651), a worm (652), a worm wheel (653), and a drive motor (654). One end of the swing arm (651) is rotatably connected to the frame (1). The worm wheel (653) is coaxially fixed with the swing arm (651). The drive motor (654) is fixed on the frame (1). The worm (652) is coaxially fixed with the output shaft of the drive motor (654). The worm (652) meshes with the worm wheel (653). A groove (6511) is provided on the swing arm (651) along the length direction of the swing arm (651). The moving block (643) is stuck in the groove (6511).

6. The ecological restoration device for red mud dumps according to claim 5, characterized in that: The end of the worm (652) is coaxially fixed with a drive gear (53), which meshes with a drive gear (52). The drive gear (52) is rotatably mounted on the frame (1). An eccentric shaft (55) is eccentrically mounted on the drive gear (52). A drive groove (54) is provided at one end of the long groove (51). The drive groove (54) is vertically mounted. One end of the eccentric shaft (55) is inserted into the drive groove (54).

7. The ecological restoration device for red mud dumps according to claim 2, characterized in that: The straw feeding assembly (62) includes a push plate (621), a guide rod (622), and a push screw (623). The push plate (621) is arranged in the storage box (61) perpendicular to the direction of the discharge port (611). The guide rod (622) is fixed in the storage box (61) along the axis of the storage box (61). The push plate (621) is slidably connected to the guide rod (622). The push screw (623) is parallel to the guide rod (622) and a push block (624) is threadedly connected to the push screw (623). The push block (624) is fixed on the push plate (621). A push motor (625) is fixedly installed on the storage box (61). The output shaft of the push motor (625) is coaxially fixed with the push screw (623).

8. The ecological restoration device for red mud dumps according to claim 7, characterized in that: The upper part of the storage box (61) is provided with a cover plate (8), one side of the cover plate (8) is hinged to the storage box (61), and the lower part of the cover plate (8) abuts against the push plate (621).

9. The ecological restoration device for red mud dumps according to claim 1, characterized in that: The crushing mechanism (4) includes a cylinder (41), a crushing shaft (42), and a crushing motor (43). The lower diameter of the cylinder (41) is smaller than the upper diameter of the cylinder (41). The crushing shaft (42) is vertically arranged inside the cylinder (41). The crushing motor (43) is fixed on the cylinder (41) and used to drive the crushing shaft (42) to rotate. A crushing rod (45) is provided on the upper part of the crushing shaft (42), and a spiral blade (46) that cooperates with the lower part of the cylinder (41) is provided on the lower part of the crushing shaft (42).

10. The ecological restoration device for red mud dumps according to claim 1, characterized in that: The frame (1) is fixedly provided with a box (13) for storing the modifier, and the lower part of the box (13) is connected to the crushing mechanism (4) through a hose (14).

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