A device and method for improving and repairing desert soil using river and lake bottom mud

Abstract

The present invention relates to the technical field of desert control, and specifically to a device and method for improving and repairing desert soil by using river and lake bottom mud. The repair device comprises a crawler walking base, and a mixing and conveying mechanism for mixing sand and river and lake bottom mud is arranged above the crawler walking base. The repair device also comprises a lifting mechanism for driving the mixing and conveying mechanism to move up and down. The number of the lifting mechanisms is two and they are symmetrically arranged on the crawler walking base. By stirring and mixing the sand and river and lake bottom mud during the travel process and then re-laying the mixture on the route after the travel, the operation space in the process of improving the desert soil can be reduced, so that the consistency between the various operations is higher, and by integrating the collection, mixing and laying, the efficiency of desert soil improvement can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of desert control, and in particular to a device and a method for improving and repairing desert soil by utilizing river and lake bottom mud. Background Art

[0002] Desert control refers to the process of curbing the expansion of deserts and restoring and protecting the ecological environment through a series of engineering, biological and technological means. This process aims to reduce the occurrence of sandstorms, protect cultivated land and residential areas, and promote the restoration and sustainable development of the ecosystem.

[0003] There are many ways to control desertification. Mixing river and lake mud with sand can improve the physical and chemical properties of the sand, enhance the water retention capacity and stability of the sand, thereby promoting the growth of vegetation and preventing further desertification of the sand. River and lake mud contains a variety of organic matter, which promotes the soilification of sand and facilitates the survival of vegetation.

[0004] At present, when using river and lake bottom mud to improve desert soil, it is usually necessary to first mix a certain amount of river and lake bottom mud with sand, and then spread the mixture of sand and river and lake bottom mud on the desert again. This method of desert soil improvement first requires a relatively large operating space, which makes the continuity between the various operations not strong. At the same time, the method of mixing first and then spreading will result in low efficiency in desert soil improvement. Summary of the invention

[0005] Therefore, the present invention provides a device and method for improving and repairing desert soil using river and lake bottom mud, which solves the above technical problems.

[0006] On one hand, the present invention provides a desert soil improvement and restoration device using river and lake bottom mud, comprising a crawler-type walking base, a mixing and conveying mechanism for mixing sand and river and lake bottom mud is arranged above the crawler-type walking base, the restoration device also comprises a lifting mechanism for driving the mixing and conveying mechanism to move up and down, the number of the lifting mechanisms is two and they are arranged symmetrically on the crawler-type walking base, the restoration device also comprises a river and lake bottom mud feeding mechanism for supplying river and lake bottom mud to the inside of the mixing and conveying mechanism, the river and lake bottom mud feeding mechanism is arranged on the mixing and conveying mechanism, a sand taking unit for supplying sand to the inside of the mixing and conveying mechanism is arranged on the front side of the mixing and conveying mechanism, the restoration device also comprises a paving mechanism for paving the mixture of sand and river and lake bottom mud, the paving mechanism is arranged on the rear side of the crawler-type walking base;

[0007] The paving mechanism comprises a connecting piece arranged at the rear side of the crawler-type walking base, and a surface hollow paving roller is rotatably connected to the connecting piece.

[0008] The mixing and conveying mechanism comprises a stirring and conveying bin fixedly connected to the lifting mechanism, wherein two left-right symmetrical stirring and conveying shafts are rotatably connected inside the stirring and conveying bin, and a plurality of blades are intermittently distributed in a spiral shape on the circumferential surface of the stirring and conveying shaft, and the two stirring and conveying shafts rotate in opposite directions.

[0009] The river and lake bottom mud feeding mechanism comprises a loading bin fixedly connected to the upper surface of the stirring and conveying bin, the upper surface of the loading bin is fixedly connected with a feeding port, and the loading bin is provided with a pushing piece for pushing the river and lake bottom mud into the stirring and conveying bin.

[0010] During the journey, sand and soil are collected and pushed by the pushing parts to transport the river and lake bottom mud to the inside of the mixing and conveying bin for mixing and conveying, and then the mixture is re-laid at the position where the sand and soil were collected on the route for backfilling.

[0011] According to an embodiment of the present invention, a feed pipe is fixed to and connected through the rear side of the lower surface of the stirring and conveying shaft, and a groove opening member is provided on the lower surface of the stirring and conveying bin and located in front of the feed pipe.

[0012] According to an embodiment of the present invention, the lifting mechanism on the right side includes two front-to-rear symmetrical mounting seats fixedly connected to the right side of the mixing and conveying bin, the mounting seats slide up and down and are connected with a limiting slide rod, the bottom end of the limiting slide rod is fixedly connected to the crawler walking base, and two upper-lower symmetrical connecting plates are fixedly connected to the right side of the mixing and conveying bin and located between the two mounting seats, a hydraulic telescopic cylinder is fixedly connected to the two connecting plates, and the telescopic end of the hydraulic telescopic cylinder is fixedly connected to the crawler walking base.

[0013] According to an embodiment of the present invention, the connecting member includes two left-right symmetrical connecting ear plates fixedly connected to the rear side of the crawler walking base, the rear end of the connecting ear plate is hinged with a connecting strip, the rear opposite surfaces of the two connecting strips are rotatably connected to the surface hollow paving roller, the upper surfaces of the two connecting strips are commonly fixedly connected to a support frame, the upper surface of the support frame is hinged with two left-right symmetrical elastic telescopic rods, one end of the elastic telescopic rod away from the support frame is hinged to the rear surface of the loading bin, the rear surface of the support frame is hinged with a cleaning claw, a torsion spring is arranged between the cleaning claw and the support frame, the lower surface of the cleaning claw is slidably matched with the circumferential surface of the surface hollow paving roller.

[0014] According to an embodiment of the present invention, the trenching member includes two left-right symmetrical connecting sleeves fixedly connected to the lower surface of the stirring and conveying bin, the lower surfaces of the two connecting sleeves slide up and down together and are penetrated by a connecting frame, and the connecting sleeve is provided with a limiting bolt for fixing the connecting frame inside the connecting sleeve, and the connecting frame is fixedly connected to a trenching plow.

[0015] According to an embodiment of the present invention, an adjusting member for adjusting the amount of river and lake bottom mud entering the mixing and conveying bin is provided on the front side of the lower surface of the loading bin, and the adjusting member includes a connecting square tube fixedly connected to the lower surface of the loading bin, and the upper and lower ends of the connecting square tube are open, and the left and right side surfaces of the connecting square tube are both sliding and penetrated by baffles, and the end of the baffle away from the center of the connecting square tube is fixedly connected to a connecting block, and the two connecting blocks are commonly threaded with a bidirectional threaded rod.

[0016] According to an embodiment of the present invention, the pushing member includes two groups of symmetrical limiting slide grooves opened on the left and right sides of the loading bin, the interiors of the two groups of limiting slide grooves are slidably connected to the limiting sliders, a plurality of limiting sliders are commonly fixedly connected with a pushing plate, the pushing plate is slidably connected to the inner surface of the loading bin, a winch is fixedly connected at the middle position of the upper surface of the loading bin, a variable guide wheel is fixedly installed on the upper surface of the loading bin and in front of the winch, the winch is driven by an external motor to perform forward and reverse rotation, two symmetrical guide pulley groups are fixedly connected to the front and rear sides of the loading bin, and a traction rope is fixedly connected to the front surface of the pushing plate.

[0017] According to an embodiment of the present invention, one end of the traction rope away from the push plate passes through the front side of the loading bin and sequentially bypasses the guide pulley group and the variable guide wheel on the front side, then is wrapped around the winch for multiple turns and bypasses the guide pulley group on the rear side and then passes through the rear side of the loading bin to the interior of the loading bin and is fixedly connected to the rear surface of the push plate.

[0018] According to an embodiment of the present invention, a through hole corresponding to the connecting square tube is opened on the lower surface of the loading bin, and a through hole corresponding to the connecting square tube is opened on the upper surface of the stirring and conveying bin.

[0019] On the other hand, the present invention provides a method for improving and repairing desert soil using river and lake sediments, which is completed in cooperation with the above-mentioned repair device and includes the following steps: S1. First, the collected river and lake sediments are transported to the inside of the loading bin through external transport equipment.

[0020] S2. Then, the flow rate of the river and lake bottom mud from the loading bin into the mixing bin is adjusted through the adjusting member.

[0021] S3. After the adjustment is completed, the crawler-type walking base moves at a designated position in the desert, and the lifting mechanism is used to adjust the appropriate working height according to the required sand taking amount. During the moving process, the sand taking unit collects the sand into the mixing bin.

[0022] S4. During the continuous movement of the crawler walking base, the trenching member opens a trench on the front side of the discharge pipe, and the sand and river and lake bottom mud simultaneously enter the mixing bin for mixing and transportation, and then the mixture falls from the discharge pipe and is backfilled into the trench.

[0023] S5. During the movement of the crawler walking base, the mixture of sand and river and lake bottom mud that falls back onto the movement path of the crawler walking base is paved through the paving mechanism.

[0024] The technical solution of the present invention is as follows: 1. By stirring and mixing sand and river and lake bottom mud during the journey, and then re-laying the mixture on the route after the journey, the operation space in the process of desert soil improvement can be reduced, so that the consistency between various operations is higher, and by integrating collection, mixing and laying, the efficiency of desert soil improvement can be improved.

[0025] 2. By setting up the river and lake bottom mud feeding mechanism, the river and lake bottom mud can be simultaneously transported to the inside of the mixing and conveying bin during the process of the sand taking unit collecting sand, thereby improving the mixing efficiency of the sand and the river and lake bottom mud, and simultaneously entering the inside of the mixing and conveying bin. When entering, the sand and the river and lake bottom mud can be preliminarily mixed, which is convenient for a more uniform mixing when the sand and the river and lake bottom mud are subsequently stirred and mixed.

[0026] 3. By setting up the trenching parts, a trench can be opened on the route after travel before the mixture of sand and river and lake bottom mud is re-laid on the route after travel, so that the mixture of sand and river and lake bottom mud can spread to both sides as little as possible when laid on the route after travel.

[0027] 4. Through the setting of the paving mechanism, after the mixture of sand and river and lake bottom mud is repaved on the route after traveling, the raised position in the middle can be paved, and at the same time, the sand pushed to both sides by the trenching parts when trenching can be merged with the mixture of sand and river and lake bottom mud, so that the mixture of sand and river and lake bottom mud can be more closely integrated with the desert after repaving, thereby improving the improvement effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the device for improving and repairing desert soil by utilizing river and lake bottom mud provided by the present invention.

[0030] Figure 2 It is a three-dimensional structural schematic diagram of the stirring and conveying mechanism provided by the present invention.

[0031] Figure 3It is a three-dimensional structural schematic diagram of the river and lake bottom mud feeding mechanism provided by the present invention.

[0032] Figure 4 It is a schematic diagram of the three-dimensional structure of the adjusting member provided by the present invention.

[0033] Figure 5 It is a three-dimensional structural schematic diagram of the lifting mechanism provided by the present invention.

[0034] Figure 6 It is a schematic diagram of the three-dimensional structure of the groove opening member provided by the present invention.

[0035] Figure 7 It is a three-dimensional structural schematic diagram of the paving mechanism provided by the present invention.

[0036] Figure 8 It is a schematic diagram of the three-dimensional structure of the surface hollowed-out paving roller provided by the present invention.

[0037] Figure numerals: 1. crawler-type walking base; 2. lifting mechanism; 3. paving mechanism; 4. mixing and conveying mechanism; 5. river and lake bottom mud feeding mechanism; 6. sand taking unit; 21. connecting plate; 22. hydraulic telescopic cylinder; 23. mounting seat; 24. limit slide bar; 31. connecting piece; 32. surface hollow paving roller; 41. mixing and conveying bin; 42. mixing and conveying shaft; 43. trenching piece; 44. feeding pipe; 51. loading bin; 52. adjusting piece; 53. pushing piece; 54. feeding Mouth; 311, connecting ear plate; 312, connecting strip; 313, supporting frame; 314, elastic telescopic rod; 315, cleaning claw; 431, connecting sleeve; 432, connecting frame; 433, trenching plow; 521, connecting block; 522, baffle; 523, connecting square tube; 524, two-way threaded rod; 531, limiting slider; 532, pushing plate; 533, changing guide wheel; 534, capstan; 535, guide pulley block; 536, limiting slide groove; 537, traction rope. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0039] like Figure 1As shown, a device for improving and repairing desert soil using river and lake bottom mud comprises a crawler walking base 1, a mixing and conveying mechanism 4 for mixing sand and river and lake bottom mud being arranged above the crawler walking base 1, the repairing device further comprises a lifting mechanism 2 for driving the mixing and conveying mechanism 4 to move up and down, the number of the lifting mechanisms 2 is two and they are arranged symmetrically on the crawler walking base 1, the repairing device further comprises a river and lake bottom mud feeding mechanism 5 for supplying river and lake bottom mud to the inside of the mixing and conveying mechanism 4, the river and lake bottom mud feeding mechanism 5 is arranged on the mixing and conveying mechanism 4, a sand taking unit 6 for supplying sand to the inside of the mixing and conveying mechanism 4 is arranged on the front side of the mixing and conveying mechanism 4, the repairing device further comprises a paving mechanism 3 for paving the mixture of sand and river and lake bottom mud, and the paving mechanism 3 is arranged on the rear side of the crawler walking base 1.

[0040] like Figure 2 As shown, the mixing and conveying mechanism 4 includes a stirring and conveying bin 41 fixedly connected to the lifting mechanism 2, and two left-right symmetrical stirring and conveying shafts 42 are rotatably connected inside the stirring and conveying bin 41. A plurality of blades are intermittently distributed in a spiral shape on the circumferential surface of the stirring and conveying shaft 42. A driving motor is arranged on the stirring and conveying bin 41, and the driving motor drives the two stirring and conveying shafts 42 to rotate in opposite directions through gear matching (not shown in the figure). A discharge pipe 44 is fixed to the rear side of the lower surface of the stirring and conveying shaft 42 and is penetrated by it, and a groove opening member 43 is arranged on the lower surface of the stirring and conveying bin 41 and on the front side of the discharge pipe 44.

[0041] like Figure 6 As shown, the trenching member 43 includes two left-right symmetrical connecting sleeves 431 fixedly connected to the lower surface of the mixing and conveying bin 41. The lower surfaces of the two connecting sleeves 431 slide up and down together and are penetrated by a connecting frame 432. The connecting sleeves 431 are provided with limiting bolts for fixing the connecting frame 432 inside the connecting sleeves 431. The connecting frame 432 is fixedly connected to a trenching plow 433.

[0042] like Figure 3 As shown, the river and lake bottom mud feeding mechanism 5 includes a loading bin 51 fixedly connected to the upper surface of the stirring and conveying bin 41, the upper surface of the loading bin 51 is fixedly connected with a feed port 54, the loading bin 51 is provided with a pushing piece 53 for pushing the river and lake bottom mud into the stirring and conveying bin 41, and the front side of the lower surface of the loading bin 51 is provided with an adjusting piece 52 for adjusting the amount of river and lake bottom mud entering the stirring and conveying bin 41.

[0043] During specific use, the collected river and lake bottom mud is first transported from the feed port 54 to the interior of the loading bin 51 through an external conveying device. When the river and lake bottom mud needs to be transported from the interior of the loading bin 51 to the interior of the mixing and conveying bin 41, the outflow of the river and lake bottom mud from the interior of the loading bin 51 is first adjusted by the adjusting member 52, and then the pushing member 53 generates a thrust from the back to the front on the river and lake bottom mud inside the loading bin 51, so as to transport the river and lake bottom mud to the interior of the mixing and conveying bin 41.

[0044] like Figure 3 and Figure 4 As shown, the adjusting member 52 includes a connecting square tube 523 fixedly connected to the lower surface of the loading bin 51, the connecting square tube 523 is opened at the upper and lower ends, the left and right side surfaces of the connecting square tube 523 are both slidable and penetrated with a baffle 522, the end of the baffle 522 away from the center of the connecting square tube 523 is fixedly connected with a connecting block 521, and the two connecting blocks 521 are commonly threaded with a bidirectional threaded rod 524, the lower surface of the loading bin 51 is provided with a through hole corresponding to the connecting square tube 523, and the upper surface of the stirring and conveying bin 41 is provided with a through hole corresponding to the connecting square tube 523.

[0045] During specific use, when the outflow of river and lake bottom mud from the loading bin 51 is adjusted by the adjusting member 52, the bidirectional threaded rod 524 is first rotated, and the bidirectional threaded rod 524 drives the two connecting blocks 521 to move away from each other, and the connecting blocks 521 drive the baffle 522 to move synchronously. At this time, the baffle 522 gradually opens so that the loading bin 51 and the mixing and conveying bin 41 are connected. At this time, the river and lake bottom mud inside the loading bin 51 begins to be transported to the inside of the mixing and conveying bin 41. With the continuous use of the river and lake bottom mud inside the loading bin 51, the river and lake bottom mud inside the loading bin 51 is timely supplemented by external conveying equipment.

[0046] like Figure 3 and Figure 4 As shown, the pushing member 53 includes two groups of symmetrical limiting slide grooves 536 opened on the left and right sides of the loading bin 51, and each group of limiting slide grooves 536 has two number and are distributed up and down. The interiors of the two groups of limiting slide grooves 536 are slidably connected to the limiting sliders 531, and a pushing plate 532 is fixedly connected to the plurality of limiting sliders 531. The pushing plate 532 is slidably connected to the inner surface of the loading bin 51, and a capstan 534 is fixedly connected at the middle position of the upper surface of the loading bin 51. A variable guide wheel 533 is fixedly installed on the upper surface of the loading bin 51 and in front of the capstan 534. The capstan 534 is driven by an external motor (not shown in the figure) to rotate forward and reverse. Two symmetrical guide pulley groups 535 are fixedly connected to the front and rear sides of the loading bin 51, and a traction rope 537 is fixedly connected to the front surface of the pushing plate 532.

[0047] like Figure 3 and Figure 4As shown, one end of the traction rope 537 away from the push plate 532 passes through the front side of the loading bin 51 and in turn passes around the front guide pulley group 535 and the variable guide wheel 533, then is wrapped around the winch 534 for multiple turns, passes around the rear guide pulley group 535, and then passes through the rear side of the loading bin 51 to the interior of the loading bin 51 and is fixedly connected to the rear surface of the push plate 532.

[0048] During specific use, when it is necessary to push the river and lake bottom mud inside the loading bin 51 to the inside of the mixing and conveying bin 41, the external motor drives the winch 534 to rotate, and the winch 534 pulls the push plate 532 to slide forward inside the loading bin 51 through the traction rope 537. At the same time, the limiting slider 531 on the push plate 532 slides inside the limiting slide groove 536 as the push plate 532 slides, thereby achieving auxiliary limiting of the push plate 532 during the sliding process, avoiding the push plate 532 from deflecting during the sliding process, so that the river and lake bottom mud can be pushed to the inside of the mixing and conveying bin 41 more smoothly.

[0049] It should be noted that since the traction rope 537 is wound around the capstan 534, when the capstan 534 rotates, it drives the traction rope 537 to move. At this time, one end of the traction rope 537 is subjected to tension, which is transmitted to the push plate 532 through the guide pulley group 535. When the capstan 534 rotates forward, the capstan 534 drives the push plate 532 to move from front to back inside the loading bin 51 through the traction rope 537, and vice versa, it drives the push plate 532 to move from back to front inside the loading bin 51.

[0050] like Figure 5 As shown, taking the lifting mechanism 2 on the right side as an example, the lifting mechanism 2 includes two front-to-back symmetrical mounting seats 23 fixedly connected to the right side of the mixing and conveying bin 41, and a limit slide bar 24 is slided up and down on the mounting seat 23 and penetrates and is connected, and the bottom end of the limit slide bar 24 is fixedly connected to the crawler walking base 1, and two upper and lower symmetrical connecting plates 21 are fixedly connected to the right side of the mixing and conveying bin 41 and located between the two mounting seats 23, and a hydraulic telescopic cylinder 22 is fixedly connected to the two connecting plates 21, and the telescopic end of the hydraulic telescopic cylinder 22 is fixedly connected to the crawler walking base 1.

[0051] During specific use, after the loading bin 51 is connected to the mixing and conveying bin 41 through the connecting square tube 523, the crawler walking base 1 starts to move forward, and the hydraulic telescopic cylinder 22 contracts synchronously, driving the mixing and conveying bin 41 to move downward, and synchronously driving the sand taking unit 6 to move downward. At this time, the mixing and conveying bin 41 drives the mounting seat 23 to move downward on the limit slide bar 24. The setting of multiple limit slide bars 24 can ensure that the mixing and conveying bin 41 moves vertically and smoothly. As the crawler walking base 1 continues to move, the sand taking unit 6 starts to collect the sand in front of it and transport it to the inside of the mixing and conveying bin 41. When the sand enters the mixing and conveying bin, the sand taking unit 6 starts to collect the sand in front of it and transport it to the inside of the mixing and conveying bin 41. After the sand and river and lake bottom mud are mixed inside the mixing and conveying bin 41, the driving motor on the mixing and conveying bin 41 drives the two mixing and conveying shafts 42 to rotate in opposite directions. When the two mixing and conveying shafts 42 rotate in opposite directions, the blades on the mixing and conveying shafts 42 rotate synchronously. During the rotation, the sand and river and lake bottom mud inside the mixing and conveying bin 41 are mixed by the blades. At the same time, since the blades are intermittently distributed in a spiral shape on the mixing and conveying shafts 42, the sand and river and lake bottom mud are conveyed from front to back during the mixing process of the blades. After the mixture of sand and river and lake bottom mud is stirred and conveyed by the mixing and conveying shafts 42 to the top of the discharge pipe 44, the mixture of sand and river and lake bottom mud falls downward from the inside of the discharge pipe 44.

[0052] At the same time, when the hydraulic telescopic cylinder 22 drives the mixing and conveying bin 41 to move downward, the trenching plow 433 moves downward synchronously with the mixing and conveying bin 41. When the crawler walking base 1 starts to move forward, a trench is opened on the route after the crawler walking base 1 moves through the trenching plow 433. When the mixture of sand and river and lake bottom mud falls downward from the inside of the discharge pipe 44, part of the mixture of sand and river and lake bottom mud will fall into the inside of the trench, thereby preventing the mixture of sand and river and lake bottom mud from spreading too much to the left and right sides after falling downward.

[0053] It should be noted that the depth of the groove formed by the groove plow 433 can be adjusted by adjusting the relative position between the connecting frame 432 and the connecting sleeve 431 . After the adjustment is completed, the connecting frame 432 is kept fixed inside the connecting sleeve 431 by the limiting bolts.

[0054] like Figure 7 and Figure 8 As shown, the paving mechanism 3 includes a connecting member 31 arranged at the rear side of the crawler-type walking base 1, and a surface hollow paving roller 32 is rotatably connected to the connecting member 31.

[0055] like Figure 7As shown, the connecting member 31 includes two left-right symmetrical connecting ear plates 311 fixedly connected to the rear side of the crawler walking base 1, and the rear end of the connecting ear plate 311 is hinged with a connecting strip 312, and the opposite surfaces of the rear sides of the two connecting strips 312 are rotatably connected to the two ends of the surface hollow paving roller 32, and the upper surfaces of the two connecting strips 312 are commonly fixedly connected to a support frame 313, and the upper surface of the support frame 313 is hinged with two left-right symmetrical elastic telescopic rods 314, and the end of the elastic telescopic rod 314 away from the support frame 313 is hinged to the rear surface of the loading bin 51, and the rear surface of the support frame 313 is hinged with a cleaning claw 315, and a torsion spring is arranged between the cleaning claw 315 and the support frame 313, and the lower surface of the cleaning claw 315 is slidably matched with the circumferential surface of the surface hollow paving roller 32.

[0056] During specific use, when the hydraulic telescopic cylinder 22 contracts and drives the mixing and conveying bin 41 to move downward, the loading bin 51 moves downward synchronously with the mixing and conveying bin 41. When the surface hollow paving roller 32 contacts the ground, as the loading bin 51 continues to move downward, since the connecting strip 312 and the connecting ear plate 311 are hinged, the elastic telescopic rod 314 between the loading bin 51 and the support frame 313 is gradually forced to contract. At the same time, the elastic force of the elastic telescopic rod 314 itself produces a reverse thrust on the surface hollow paving roller 32, so that the surface hollow paving roller 32 is close to the ground. As the crawler walking base 1 moves, the surface hollow paving roller 32 rolls on the ground.

[0057] When the surface hollow paving roller 32 passes through the fallen sand and river and lake bottom mud mixture, the surface hollow paving roller 32 generates thrust on the sand and river and lake bottom mud mixture, and because the surface hollow paving roller 32 is a hollow surface setting, part of the sand and river and lake bottom mud mixture enters the interior of the surface hollow paving roller 32. At this time, with the rolling of the surface hollow paving roller 32, the raised part of the sand and river and lake bottom mud mixture is flattened, and the cleaning claw 315 cooperates with the reset spring between the support frame 313, so that the cleaning claw 315 can be tightly attached to the circumferential surface of the surface hollow paving roller 32, and some of the sand and river and lake bottom mud mixture attached to the surface hollow paving roller 32 is cleaned off, so that the sand and river and lake bottom mud mixture can be integrated with the desert more quickly, and as the crawler walking base 1 continues to move, the desert soil is continuously improved and repaired.

[0058] like Figure 1 , Figure 2 and Figure 3 As shown, a method for improving and repairing desert soil using river and lake sediments includes the following steps: S1. First, the collected river and lake sediments are transported to the interior of a loading bin 51 through an external transport device.

[0059] S2. Then, the flow rate of the river and lake bottom mud from the loading bin 51 into the mixing bin 41 is adjusted by the adjusting member 52.

[0060] S3. After the adjustment is completed, the crawler-type walking base 1 moves at a designated position in the desert, and the lifting mechanism 2 adjusts the appropriate working height according to the required sand collection amount. During the movement, the sand collecting unit 6 collects the sand into the mixing bin 41.

[0061] S4. During the continuous movement of the crawler walking base 1, the groove opening member 43 opens a groove on the front side of the discharge pipe 44, and the sand and river and lake bottom mud simultaneously enter the mixing bin 41 for mixing and transportation, and then the mixture falls from the discharge pipe 44 and is backfilled into the groove.

[0062] S5. During the movement of the crawler walking base 1, the paving mechanism 3 is used to pave the mixture of sand and river and lake bottom mud that falls back onto the movement path of the crawler walking base 1.

[0063] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0064] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0065] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for improving and repairing desert soil using river and lake sediments, characterized in that: It comprises a crawler-type walking base (1), and a mixing and conveying mechanism (4) for mixing sand and river and lake bottom mud is arranged above the crawler-type walking base (1); A lifting mechanism (2) for driving the mixing and conveying mechanism (4) to move up and down, and a river and lake bottom mud feeding mechanism (5) for supplying river and lake bottom mud to the inside of the mixing and conveying mechanism (4), wherein the river and lake bottom mud feeding mechanism (5) is arranged on the mixing and conveying mechanism (4), and a sand taking unit (6) for supplying sand and soil to the inside of the mixing and conveying mechanism (4) is arranged at the front side of the mixing and conveying mechanism (4); A paving mechanism (3) for paving a mixture of sand and river and lake bottom mud, the paving mechanism (3) comprising a connecting member (31) arranged at the rear side of a crawler-type walking base (1), and a paving roller (32) with a hollow surface rotatably connected to the connecting member (31); The mixing and conveying mechanism (4) comprises a mixing and conveying bin (41) fixedly connected to the lifting mechanism (2), two left-right symmetrical mixing and conveying shafts (42) being rotatably connected inside the mixing and conveying bin (41), a plurality of blades being intermittently distributed in a spiral shape on the circumferential surface of the mixing and conveying shaft (42), the two mixing and conveying shafts (42) rotating in opposite directions, and a feeding pipe (44) being fixed to and penetrating the rear side of the lower surface of the mixing and conveying shaft (42); The river and lake bottom mud feeding mechanism (5) comprises a loading bin (51) fixedly connected to the upper surface of the stirring and conveying bin (41), a feeding port (54) being fixedly connected to the upper surface of the loading bin (51), and a pushing member (53) for pushing the river and lake bottom mud into the stirring and conveying bin (41) is provided on the loading bin (51); The number of the lifting mechanisms (2) is two and they are symmetrically arranged on the crawler walking base (1); the lifting mechanism (2) on the right side comprises two front-to-back symmetrical mounting seats (23) fixedly connected to the right side of the mixing and conveying bin (41); the mounting seats (23) slide up and down and are connected through a limit slide bar (24); the bottom end of the limit slide bar (24) is fixedly connected to the crawler walking base (1); the right side of the mixing and conveying bin (41) and located between the two mounting seats (23) are fixedly connected to two upper and lower symmetrical connecting plates (21); the two connecting plates (21) are fixedly connected to a hydraulic telescopic cylinder (22); the telescopic end of the hydraulic telescopic cylinder (22) is fixedly connected to the crawler walking base (1); The trenching member (43) comprises two left-right symmetrical connecting sleeves (431) fixedly connected to the lower surface of the stirring and conveying bin (41); the lower surfaces of the two connecting sleeves (431) slide up and down together and are penetrated by a connecting frame (432); the connecting sleeves (431) are provided with a limiting bolt for fixing the connecting frame (432) inside the connecting sleeve (431); and the connecting frame (432) is fixedly connected to a trenching plow (433); The pusher (53) comprises two groups of symmetrical limiting slide grooves (536) provided on the left and right sides of the loading bin (51); the insides of the two groups of limiting slide grooves (536) are both slidably connected to the limiting sliders (531); a plurality of limiting sliders (531) are commonly fixedly connected to a pusher plate (532); the pusher plate (532) is slidably connected to the inner surface of the loading bin (51); a capstan (534) is fixedly connected to the middle position of the upper surface of the loading bin (51); a variable guide wheel (533) is fixedly installed on the upper surface of the loading bin (51) and located in front of the capstan (534); the capstan (534) is driven by an external motor to rotate forward and reversely; two symmetrical guide pulley groups (535) are fixedly connected to the front and rear sides of the loading bin (51); and a traction rope (537) is fixedly connected to the front surface of the pusher plate (532); The sand and soil collected during the journey are synchronously transported to the interior of the mixing and transporting bin (41) for mixing and stirring, and then the mixture is backfilled.

2. The device for improving and repairing desert soil using river and lake sediments according to claim 1 is characterized by: A groove opening member (43) is provided on the lower surface of the stirring and conveying bin (41) and located in front of the discharge pipe (44).

3. The device for improving and repairing desert soil by using river and lake sediments according to claim 1 is characterized in that: The connecting member (31) comprises two left-right symmetrical connecting ear plates (311) fixedly connected to the rear side of the crawler walking base (1); a connecting strip (312) is hingedly connected to the rear end of the connecting ear plate (311); the rear opposite surfaces of the two connecting strips (312) are rotatably connected to the surface hollow paving roller (32); the upper surfaces of the two connecting strips (312) are commonly fixedly connected to a support frame (313); the upper surface of the support frame (313) is hingedly connected to two left-right symmetrical elastic telescopic rods (314); one end of the elastic telescopic rod (314) away from the support frame (313) is hingedly connected to the rear surface of the loading bin (51); a cleaning claw (315) is hingedly connected to the rear surface of the support frame (313); a torsion spring is provided between the cleaning claw (315) and the support frame (313); and the lower surface of the cleaning claw (315) is slidably matched with the circumferential surface of the surface hollow paving roller (32).

4. The device for improving and repairing desert soil by using river and lake sediments according to claim 1 is characterized in that: An adjusting member (52) for adjusting the amount of river and lake bottom mud entering the stirring and conveying bin (41) is provided on the front side of the lower surface of the loading bin (51), and the adjusting member (52) comprises a connecting square tube (523) fixedly connected to the lower surface of the loading bin (51), and the connecting square tube (523) is provided with openings at both upper and lower ends, and baffles (522) are slidably connected to and penetrate the left and right side surfaces of the connecting square tube (523), and a connecting block (521) is fixedly connected to one end of the baffle (522) away from the center of the connecting square tube (523), and a bidirectional threaded rod (524) is threadedly connected to the two connecting blocks (521).

5. The device for improving and repairing desert soil by using river and lake sediments according to claim 4 is characterized in that: One end of the traction rope (537) away from the push plate (532) passes through the front side of the loading bin (51), passes around the guide pulley group (535) and the changeable guide wheel (533) on the front side, and then is wound around the capstan (534) for multiple turns, passes around the guide pulley group (535) on the rear side, and then passes through the rear side of the loading bin (51) to the interior of the loading bin (51), and is fixedly connected to the rear surface of the push plate (532).

6. The device for improving and repairing desert soil by using river and lake sediments according to claim 3 is characterized by: A through hole corresponding to the communicating square tube (523) is provided on the lower surface of the loading bin (51), and a through hole corresponding to the communicating square tube (523) is provided on the upper surface of the stirring and conveying bin (41).

7. The device for improving and repairing desert soil by using river and lake sediments according to claim 4 is characterized in that: The method for using the above-mentioned repair device to improve desert soil includes the following steps: S1, firstly, the collected river and lake bottom mud is transported to the inside of the loading bin (51) through external transport equipment; S2, then adjusting the flow rate of the river and lake bottom mud from the loading bin (51) into the mixing and conveying bin (41) through the adjusting member (52); S3, after the adjustment is completed, the crawler-type walking base (1) moves at a designated position in the desert, and the lifting mechanism (2) adjusts a suitable working height according to the required amount of sand to be taken. During the moving process, the sand taking unit (6) collects the sand into the mixing and conveying bin (41); S4. During the continuous movement of the crawler-type walking base (1), the groove opening member (43) opens a groove on the front side of the discharge pipe (44), and the sand and river and lake bottom mud simultaneously enter the mixing and conveying bin (41) for mixing and conveying, and then the mixture falls from the discharge pipe (44) and is backfilled into the groove; S5. During the movement of the crawler walking base (1), the mixture of sand and river and lake bottom mud that falls back onto the movement path of the crawler walking base (1) is paved by the paving mechanism (3).

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