An apparatus and method of operation for engineering sand dunes

Abstract

The application belongs to the technical field of engineering sand fixation, and particularly relates to a device and an operation method for engineering sand fixation, which comprises a carrier vehicle and a mechanical grab for sand grabbing, and further comprises a sand fixation agent storage tank, a treatment tank, a pellet preparation box, a spraying assembly, a stirring assembly, a power assembly and a control assembly. The spraying assembly comprises a pressure pump and a conveying pipe. The pressure pump is fixedly installed on the carrier vehicle. The treatment tank is in communication with the sand fixation agent storage tank through the conveying pipe. The sand fixation agent in the sand fixation agent storage tank enters the inside of the treatment tank through the conveying pipe. A spraying head is fixedly installed at one end of the conveying pipe in the inside of the treatment tank. The stirring assembly comprises a rotating rod and a stirring rod. The rotating rod is rotatably installed in the inside of the treatment tank. The stirring rod is fixedly installed on the outer wall of the rotating rod. The above-mentioned structure is used in cooperation to realize local material procurement, reduce the cost of sand fixation engineering, and improve the labor efficiency of the sand fixation process.

Description

Technical Field

[0001] This invention belongs to the field of engineering sand fixation technology, specifically a device and operating method for engineering sand fixation. Background Technology

[0002] Commonly used sand fixation technologies are divided into engineering sand fixation technology, chemical sand fixation technology, and biological sand fixation technology. Corresponding sand fixation materials include mechanical sand barriers, chemical sand fixation materials, and biological sand fixation materials.

[0003] Traditional biological sand-fixing technology mainly relies on vegetation for sand fixation. Vegetation sand fixation is the most effective way to prevent desertification. Compared with other sand-fixing technologies, vegetation sand fixation is long-lasting and stable, suitable for large-scale application; it can effectively improve the geological and chemical properties of sandy land, fully enhancing its productivity potential; at the same time, it can beautify the environment and provide products such as feed, timber, and fuel, offering multiple ecological and economic benefits. However, under normal circumstances, the number of plant species suitable for growth in specific areas is limited, and their growth cycle is long. The harsh environment of the desert cannot provide effective conditions for plant survival, resulting in the failure of many sand-fixing plants to survive, leading to a waste of resources.

[0004] In current sand fixation projects, to achieve the corresponding engineering goals, a comprehensive sand fixation model combining chemical and biological methods is generally adopted, namely, combining sand fixation agents with the planting of sand-fixing plants. However, at present, sand fixation operations mainly involve spraying sand fixation agents onto the sand surface to form a surface-fixed structure. This method can effectively prevent sand from being blown away, but the surface-fixed structure has low permeability after spraying the agent, which is not conducive to the implementation of subsequent planting measures, and the growth of sand-fixing plants is difficult.

[0005] Therefore, the present invention provides equipment and operating method for engineering sand fixation. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the equipment for engineering sand fixation described in the present invention includes a transport vehicle and a mechanical grab bucket for grabbing sand. The transport vehicle and the mechanical grab bucket are common technical means in the prior art, and will not be described in detail here.

[0008] It also includes sand-fixing agent storage tanks, processing tanks, pellet preparation boxes, spraying components, mixing components, power components, and control components;

[0009] The spraying assembly includes a pressure pump and a delivery pipe. The pressure pump is fixedly installed on the transport vehicle. The treatment tank and the sand-fixing agent storage tank are connected through the delivery pipe. The sand-fixing agent inside the sand-fixing agent storage tank enters the interior of the treatment tank through the delivery pipe. A spray head is fixedly installed at one end of the delivery pipe inside the treatment tank.

[0010] By starting the pressure pump, the sand-fixing agent stored in the storage tank can be discharged into the delivery pipe. Through the delivery pipe, the sand-fixing agent can be discharged into the inner cavity of the treatment tank under the pressure of the pressure pump, and mix with the sand entering the inner cavity of the treatment tank to produce a reaction.

[0011] The mixing assembly includes a rotating rod and a stirring rod. The rotating rod is rotatably installed inside the treatment tank, and the stirring rod is fixedly installed on the outer wall of the rotating rod. A second motor is fixedly connected to the bottom end of the rotating rod. The second motor is located inside the transport vehicle. When sand is poured into the treatment tank by a mechanical grab bucket, the second motor is started to drive the rotating rod to rotate, which in turn drives the stirring rod to mix the sand. At this time, the sand-fixing agent is sprayed onto the sand under the action of a pressure pump, which makes the sand adhere.

[0012] A baffle plate is slidably installed on the side wall of the pellet preparation box near the processing tank. By sliding the baffle plate upward, the sand inside the processing tank enters the pellet preparation box. The sliding of the baffle plate is controlled by a control component.

[0013] The processing tank and the pellet preparation box are separated by a baffle plate. The baffle plate can be controlled to slide upward by a control component, which will then connect the pellet preparation box with the inner cavity of the processing tank. The processing tank is positioned higher than the pellet preparation box, so the bonded sand can flow into the inner cavity of the processing tank for further processing.

[0014] The pellet preparation box has multiple pellet preparation rods rotatably mounted inside. The outer wall of each pellet preparation rod has a circular groove. The rotation of the multiple pellet preparation rods is controlled by a power component.

[0015] There are two pellet preparation rods, one above the other. The synchronous rotation of the two pellet preparation rods is controlled by a power component. The sand entering the pellet preparation box flows between the two pellet preparation rods. The sand is squeezed by the rotation of the two pellet preparation rods, and the sand can then be contained in the circular grooves opened on the surface of the pellet preparation rods to form pellets, thus completing the preparation of sand pellets.

[0016] The pellet preparation box has a discharge port at the end away from the processing tank. The sand pellets are discharged through the discharge port. After preparation, the sand pellets are discharged through the inclined discharge port. The pellets can be collected.

[0017] The power assembly includes a first motor and a rotating rod. The rotating rod is fixedly installed at one end of the pellet preparation rod and fixedly connected to the output shaft of the first motor. Multiple pellet preparation rods are driven by pulleys.

[0018] Both granulation rods are equipped with rotating rods on their side walls. Each rotating rod has a driving wheel and a driven wheel, which are connected by a belt. The rotating rods are driven to rotate by a first motor. When the rotating rods rotate, they drive the driving wheel to rotate, which in turn drives the driven wheel to rotate under the action of the belt. At this time, the two granulation rods can rotate synchronously to granulate the sand.

[0019] The control assembly includes a control lever and a pull rope. The control lever is rotatably mounted on the top of the pellet preparation box. One end of the pull rope is fixedly connected to the outer wall of the control lever, and the other end of the pull rope is fixedly connected to a baffle plate.

[0020] Rotating the control lever can wind up the pull rope, which in turn causes the control lever to slide upwards along the side wall of the pellet preparation box. This removes the obstruction to the sand inside the treatment tank, allowing the sand to flow into the inner cavity of the pellet preparation box for pelleting.

[0021] A filter plate is fixedly installed at the top of the treatment tank, and the filter plate is located above the conveying pipe.

[0022] Sand grabbed by the mechanical grabber can be placed above the filter plate for filtration. This effectively filters out stones, branches, and debris, greatly improving the quality of the sand clumps.

[0023] An elastic rod is fixedly installed inside the treatment tank, a striker is fixedly installed at the bottom of the filter plate, and a push rod is fixedly installed on the outer wall of the rotating rod.

[0024] The rotation of the rotating rod drives the push rod to rotate. The rotating push rod then pushes and presses against the elastic rod, causing it to deform and swing. The elastic potential energy released by the elastic rod collidees with the impact rod, causing the filter plate to vibrate. The vibration of the filter plate can reduce the risk of mesh clogging and further improve the filtration effect.

[0025] The top of the rotating rod is fixed with a scraper, and the bottom of the scraper is in contact with the top of the filter plate.

[0026] The filter plate can filter out impurities. When the rotating rod rotates, it can drive the scraper to slide on the surface of the filter plate, pushing away the impurities accumulated on the surface of the filter plate. An opening for impurities to be discharged is provided on one side of the filter plate. The impurities can be discharged by the scraper, improving the use effect of the filter plate.

[0027] An extension rod is elastically installed inside the scraper, and a push block is fixedly installed on the side wall of the extension rod. The bottom end of the push block is attached to the top end of the filter plate.

[0028] One end of the scraper has the same radius as the filter plate. When the extension rod extends out of the scraper, it can achieve the effect of extending the distance. When the scraper rotates to the opening, the extension rod that is elastically set inside the scraper can drive the push block to slide out, pushing the debris accumulated on the surface of the filter plate out of the opening, thus cleaning the filter plate. At the same time, the end of the scraper that rotates is tilted, so that the extension rod can be pushed back into the scraper through the rotation of the scraper for easy use next time.

[0029] An operating method for an engineering sand-fixing device, applicable to the aforementioned engineering sand-fixing device, includes the following steps:

[0030] S1: The sand is grabbed by a mechanical grab bucket and placed above the filter plate for filtration. At this time, the pressure pump is started to spray the sand-fixing agent in the storage tank into the sand inside the treatment tank through the delivery pipe. The rotating rod drives the stirring rod to stir and mix the sand and sand-fixing agent, causing the sand to clump. The rotating control rod drives the pull rope to control the baffle plate to slide down. At this time, the sand clumped on the inner wall of the treatment tank can enter the granulation box. The first motor drives multiple sets of granulation rods to rotate. The sand granules are granulated through the circular grooves on the surface of the granulation rods and finally discharged from the discharge port.

[0031] S2: By rotating the rotating rod, the push rod can be driven to rotate. At this time, the rotating push rod pushes and presses the elastic rod, causing it to deform and swing. The elastic potential energy released by the elastic rod can collide with the impact rod, causing the filter plate to vibrate.

[0032] The beneficial effects of this invention are as follows:

[0033] 1. The equipment and operating method for engineering sand fixation described in this invention involves using a mechanical grab bucket to grab sand and place it above a filter plate for filtration. Then, a pressure pump is activated to spray sand-fixing agent from a storage tank onto the sand inside the treatment tank via a delivery pipe. A rotating rod drives a stirring rod to mix the sand and sand-fixing agent, causing the sand to clump together. A rotating control rod drives a pull rope to slide the baffle plate upwards. The clumps of sand clumped inside the treatment tank then enter the granulation preparation box. A first motor drives multiple sets of granulation preparation rods to rotate, completing the preparation of granulated sand. Finally, the granules are discharged from the outlet, enabling the use of locally sourced raw materials, reducing the cost of sand fixation projects, and improving the labor efficiency of the sand fixation process.

[0034] 2. The equipment and operating method for engineering sand fixation described in this invention, by rotating the rotating rod, can drive the push rod to rotate. At this time, the rotating push rod pushes and presses the elastic rod, causing it to deform and swing. The elastic potential energy released by the elastic rod can collide with the impact rod, causing the filter plate to vibrate. The vibration of the filter plate can reduce the risk of mesh clogging and further improve the filtration effect.

[0035] 3. The equipment and operating method for engineering sand fixation described in this invention, by controlling the scraper to rotate to the opening, the extension rod elastically set inside the scraper can drive the push block to slide out, pushing the debris accumulated on the surface of the filter plate out of the opening, thus cleaning the filter plate. At the same time, one end of the scraper is tilted, so that the extension rod can be pushed back into the interior of the scraper by the rotation of the scraper, which is convenient for the next use and can clean the debris accumulated on the surface of the filter plate. Attached Figure Description

[0036] The invention will now be further described with reference to the accompanying drawings.

[0037] Figure 1 This is a perspective view of the present invention;

[0038] Figure 2 This is a schematic diagram of the pressure pump in this invention;

[0039] Figure 3 This is a schematic diagram of the rotating rod in this invention;

[0040] Figure 4 In this invention Figure 3 Enlarged view of point A in the image;

[0041] Figure 5 In this invention Figure 3 Enlarged view of point B in the image;

[0042] Figure 6 This is a schematic diagram of the structure of the pellet preparation rod in this invention;

[0043] Figure 7 In this invention Figure 6 Enlarged view of point C in the image;

[0044] Figure 8 This is a schematic diagram of the discharge port structure in this invention;

[0045] Figure 9 This is a schematic diagram of the extension rod in this invention;

[0046] Figure 10 This is a flowchart of the operation method in this invention.

[0047] In the diagram: 1. Transport vehicle; 2. Mechanical grab bucket; 3. Push block; 4. Sand-fixing agent storage tank; 5. Processing tank; 6. Pellet preparation box; 7. First motor; 8. Discharge port; 9. Filter plate; 10. Pressure pump; 11. Rotating rod; 12. Control rod; 13. Pellet preparation rod; 14. Baffle plate; 15. Pull rope; 16. Conveying pipe; 17. Stirring rod; 18. Push rod; 19. Impact rod; 20. Elastic rod; 21. Scraper; 22. Extension rod; 23. Circular groove; 24. Rotating rod. Detailed Implementation

[0048] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0049] Example 1: As Figures 1 to 7 As shown in the figure, an engineering sand-fixing device according to an embodiment of the present invention,

[0050] It includes a transport vehicle 1 and a mechanical grab bucket 2 for grabbing sand. Both the transport vehicle 1 and the mechanical grab bucket 2 are common technologies in the prior art, so they will not be described in detail here.

[0051] It also includes a sand-fixing agent storage tank 4, a processing tank 5, a pellet preparation box 6, a spraying assembly, a mixing assembly, a power assembly, and a control assembly;

[0052] The spraying assembly includes a pressure pump 10 and a delivery pipe 16. The pressure pump 10 is fixedly installed on the transport vehicle 1. The treatment tank 5 is connected to the sand-fixing agent storage tank 4 through the delivery pipe 16. The sand-fixing agent inside the sand-fixing agent storage tank 4 enters the interior of the treatment tank 5 through the delivery pipe 16. A spraying head is fixedly installed at one end of the delivery pipe 16 inside the treatment tank 5.

[0053] By activating the pressure pump 10, the sand-fixing agent stored in the sand-fixing agent storage tank 4 can be discharged into the delivery pipe 16. Through the delivery pipe 16, the sand-fixing agent can be discharged into the inner cavity of the treatment tank 5 under the pressure of the pressure pump 10, and mix with the sand entering the inner cavity of the treatment tank 5 to produce a reaction.

[0054] The mixing assembly includes a rotating rod 11 and a mixing rod 17. The rotating rod 11 is rotatably installed inside the treatment tank 5, and the mixing rod 17 is fixedly installed on the outer wall of the rotating rod 11. A second motor is fixedly connected to the bottom end of the rotating rod 11. The second motor is located inside the transport vehicle 1. The sand is poured into the treatment tank 5 by the mechanical grab bucket 2. At this time, the second motor can be started to drive the rotating rod 11 to rotate, and at the same time drive the mixing rod 17 to mix the sand. At this time, the sand-fixing agent is sprayed on the sand under the action of the pressure pump 10, so that the sand adheres.

[0055] A baffle plate 14 is slidably installed on the side wall of the pellet preparation box 6 near the processing tank 5. By sliding the baffle plate 14 upward, the sand inside the processing tank 5 enters the interior of the pellet preparation box 6. The sliding of the baffle plate 14 is controlled by the control component.

[0056] The processing tank 5 and the pellet preparation box 6 are blocked by a baffle plate 14. The baffle plate 14 can be controlled to slide upward by the set control component, so that the pellet preparation box 6 will be connected to the inner cavity of the processing tank 5. The position of the processing tank 5 is higher than that of the pellet preparation box 6, so the bonded sand can flow into the inner cavity of the processing tank 5 for further processing.

[0057] Multiple granulation rods 13 are rotatably mounted inside the granulation preparation box 6. The outer wall of the granulation preparation rods 13 is provided with a circular groove 23. The rotation of the multiple granulation preparation rods 13 is controlled by a power component.

[0058] There are two pellet preparation rods 13, which are arranged one above the other. The synchronous rotation of the two pellet preparation rods 13 is controlled by a power component. The sand entering the pellet preparation box 6 flows between the two pellet preparation rods 13. The sand is squeezed by the rotation of the two pellet preparation rods 13. At this time, the sand can be contained in the circular grooves 23 opened on the surface of the pellet preparation rods 13 to form a clump, thus completing the preparation of the sand clump.

[0059] The pellet preparation box 6 is provided with a discharge port 8 at the end away from the processing tank 5. The sand and soil pellets are discharged through the discharge port 8. After the preparation is completed, the sand and soil pellets are discharged through the inclined discharge port 8. The pellets can be collected.

[0060] The power assembly includes a first motor 7 and a rotating rod 24. The rotating rod 24 is fixedly installed at one end of the pellet preparation rod 13 and fixedly connected to the output shaft of the first motor 7. Multiple pellet preparation rods 13 are driven by pulleys.

[0061] Both granulation rods 13 are equipped with rotating rods 24 on their side walls. Each rotating rod 24 has a driving wheel and a driven wheel, which are connected by a belt. The first motor 7 drives the rotating rods 24 to rotate. When the rotating rods 24 rotate, they drive the driving wheel to rotate, which in turn drives the driven wheel to rotate under the action of the belt. At this time, the two granulation rods 13 can rotate synchronously to granulate the sand.

[0062] The control assembly includes a control lever 12 and a pull rope 15. The control lever 12 is rotatably mounted on the top of the pellet preparation box 6. One end of the pull rope 15 is fixedly connected to the outer wall of the control lever 12, and the other end of the pull rope 15 is fixedly connected to the baffle plate 14.

[0063] By rotating the control lever 12, the pull rope 15 can be wound up. At the same time, the winding of the pull rope 15 can drive the control lever 12 to slide upward on the side wall of the pellet preparation box 6, thereby removing the obstruction of the sand inside the processing tank 5, so that the sand can flow into the inner cavity of the pellet preparation box 6 for pellet preparation.

[0064] A filter plate 9 is fixedly installed at the top of the processing tank 5, and the filter plate 9 is located above the conveying pipe 16.

[0065] The sand grabbed by the mechanical grab bucket 2 can be placed above the filter plate 9 to filter the sand, effectively filtering out stones, branches and debris, and greatly improving the quality of the sand clumps.

[0066] An elastic rod 20 is fixedly installed inside the treatment tank 5, a strike rod 19 is fixedly installed at the bottom of the filter plate 9, and a push rod 18 is fixedly installed on the outer wall of the rotating rod 11.

[0067] Rotating the rotating rod 11 can drive the push rod 18 to rotate. At this time, the rotating push rod 18 pushes and presses the elastic rod 20, causing it to deform and swing. The elastic potential energy released by the elastic rod 20 can collide with the impact rod 19, causing the filter plate 9 to vibrate. The vibration of the filter plate 9 can reduce the risk of mesh clogging and further improve the filtration effect.

[0068] Example 2: Figures 8 to 9 As shown in Example 1, another embodiment of the present invention is as follows:

[0069] like Figures 8 to 9 As shown, the top of the rotating rod 11 is fixed with a scraper 21, and the bottom of the scraper 21 is attached to the top of the filter plate 9.

[0070] The filter plate 9 can filter out impurities. When the rotating rod 11 rotates, it can drive the scraper 21 to slide on the surface of the filter plate 9, pushing away the impurities accumulated on the surface of the filter plate 9. An opening for impurities to be discharged is provided on one side of the filter plate 9. The impurities can be discharged through the scraper 21, improving the use effect of the filter plate 9.

[0071] An extension rod 22 is elastically installed inside the scraper 21, and a push block 3 is fixedly installed on the side wall of the extension rod 22. The bottom end of the push block 3 is attached to the top end of the filter plate 9.

[0072] One end of the scraper 21 has the same radius as the filter plate 9. When the extension rod 22 extends out of the interior of the scraper 21, the distance can be extended. When the scraper 21 rotates to the opening, the extension rod 22, which is elastically set inside the scraper 21, can drive the push block 3 to slide out, pushing the debris accumulated on the surface of the filter plate 9 out of the opening, thus cleaning the filter plate 9. At the same time, one end of the scraper 21 is tilted, so the extension rod 22 can be pushed back into the interior of the scraper 21 by the rotation of the scraper 21, making it convenient for the next use.

[0073] like Figure 10 As shown, an operating method for an engineering sand-fixing device, applicable to the aforementioned engineering sand-fixing device, includes the following steps:

[0074] S1: The mechanical grab bucket 2 grabs the sand and places it above the filter plate 9 for filtration. At this time, the pressure pump 10 is started to spray the sand-fixing agent inside the sand-fixing agent storage tank 4 onto the sand inside the treatment tank 5 through the delivery pipe 16. The rotating rod 11 drives the stirring rod 17 to stir and mix the sand and sand-fixing agent, causing the sand to clump. The rotating control rod 12 drives the pull rope 15 to control the baffle plate 14 to slide upward. At this time, the sand clumped on the inner wall of the treatment tank 5 can enter the granulation box 6. The first motor 7 drives multiple sets of granulation rods 13 to rotate. The sand granules are formed through the circular grooves 23 on the surface of the granulation rods 13 and finally discharged from the discharge port 8.

[0075] S2: By rotating the rotating rod 11, the push rod 18 can be driven to rotate. At this time, the rotating push rod 18 pushes and presses the elastic rod 20, causing it to deform and swing. The elastic potential energy released by the elastic rod 20 can collide with the impact rod 19, causing the filter plate 9 to vibrate.

[0076] Working principle: The mechanical grab bucket 2 grabs the sand and places it above the filter plate 9 for filtration. At this time, the pressure pump 10 is activated to spray the sand-fixing agent inside the sand-fixing agent storage tank 4 onto the sand inside the treatment tank 5 through the delivery pipe 16. The rotating rod 11 drives the stirring rod 17 to stir and mix the sand and sand-fixing agent, causing the sand to clump together. The rotating control rod 12 drives the pull rope 15 to control the baffle plate 14 to slide upward. At this time, the sand clumps on the inner wall of the treatment tank 5 can enter the granulation preparation box 6. The first motor 7 drives multiple sets of granulation preparation rods 13 to rotate, completing the preparation of sand clumps. Finally, it is discharged from the discharge port 8, realizing the local use of raw materials, reducing the cost of sand fixation projects, and improving the labor efficiency of sand fixation process.

[0077] Rotating the rotating rod 11 can drive the push rod 18 to rotate. At this time, the rotating push rod 18 pushes and presses the elastic rod 20, causing it to deform and swing. The elastic potential energy released by the elastic rod 20 can collide with the impact rod 19, causing the filter plate 9 to vibrate. The vibration of the filter plate 9 can reduce the risk of mesh clogging and further improve the filtration effect.

[0078] When the scraper 21 rotates to the opening, the extension rod 22, which is elastically set inside the scraper 21, can drive the push block 3 to slide out, pushing the debris accumulated on the surface of the filter plate 9 out of the opening, thus completing the cleaning of the filter plate 9. At the same time, one end of the scraper 21 is tilted, so the extension rod 22 can be pushed back into the scraper 21 by the rotation of the scraper 21, making it convenient for the next use to clean the debris accumulated on the surface of the filter plate 9.

[0079] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0080] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, 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 limiting the scope of protection of this invention.

[0081] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An engineering sand-fixing device, comprising a transport vehicle (1) and a mechanical grab bucket (2) for grabbing sand; characterized in that It also includes a sand-fixing agent storage tank (4), a processing tank (5), a pellet preparation box (6), a spraying assembly, a mixing assembly, a power assembly, and a control assembly; The spraying assembly includes a pressure pump (10) and a delivery pipe (16). The pressure pump (10) is fixedly installed on the transport vehicle (1). The treatment tank (5) is connected to the sand-fixing agent storage tank (4) through the delivery pipe (16). The sand-fixing agent inside the sand-fixing agent storage tank (4) enters the interior of the treatment tank (5) through the delivery pipe (16). A spraying head is fixedly installed at one end of the delivery pipe (16) inside the treatment tank (5). The stirring assembly includes a rotating rod (11) and a stirring rod (17). The rotating rod (11) is rotatably installed inside the processing tank (5), and the stirring rod (17) is fixedly installed on the outer wall of the rotating rod (11). A baffle plate (14) is slidably installed on the side wall of the pellet preparation box (6) near the processing tank (5). By sliding the baffle plate (14) upward, the sand inside the processing tank (5) enters the interior of the pellet preparation box (6). The sliding of the baffle plate (14) is controlled by a control component. The pellet preparation box (6) is internally equipped with multiple pellet preparation rods (13), and the outer wall of each pellet preparation rod (13) is provided with a circular groove (23). The multiple pellet preparation rods (13) are controlled to rotate by a power component. The pellet preparation box (6) is provided with a discharge port (8) at the end away from the processing tank (5), and the sand and soil prepared into pellets are discharged through the discharge port (8).

2. The apparatus for sand fixation according to claim 1, characterized in that: The power assembly includes a first motor (7) and a rotating rod (24). The rotating rod (24) is fixedly installed at one end of the pellet preparation rod (13) and fixedly connected to the output shaft of the first motor (7). The plurality of pellet preparation rods (13) are driven by pulleys.

3. A device for sand fixation according to claim 2, characterized in that: The control assembly includes a control rod (12) and a pull rope (15). The control rod (12) is rotatably mounted on the top of the pellet preparation box (6). One end of the pull rope (15) is fixedly connected to the outer wall of the control rod (12), and the other end of the pull rope (15) is fixedly connected to the baffle plate (14).

4. The apparatus for sand fixation according to claim 3, characterized in that: A filter plate (9) is fixedly installed at the top of the processing tank (5), and the filter plate (9) is located above the conveying pipe (16).

5. A device for sand fixation according to claim 4, characterized in that: An elastic rod (20) is fixedly installed inside the processing tank (5), a strike rod (19) is fixedly installed at the bottom of the filter plate (9), and a push rod (18) is fixedly installed on the outer wall of the rotating rod (11).

6. The equipment for engineering sand fixation according to claim 5, characterized in that: The top of the rotating rod (11) is fixed with a scraper (21), and the bottom of the scraper (21) is attached to the top of the filter plate (9).

7. The equipment for engineering sand fixation according to claim 6, characterized in that: An extension rod (22) is elastically installed inside the scraper (21), and a push block (3) is fixedly installed on the side wall of the extension rod (22). The bottom end of the push block (3) is attached to the top end of the filter plate (9).

8. A method for operating an engineering sand-fixing device, the method being applicable to the engineering sand-fixing device as described in claim 7, characterized in that: Includes the following steps: S1: The mechanical grab (2) grabs the sand and places it above the filter plate (9) for filtration. At this time, the pressure pump (10) is started to spray the sand-fixing agent inside the sand-fixing agent storage tank (4) onto the sand inside the treatment tank (5) through the conveying pipe (16). The rotating rod (11) drives the stirring rod (17) to stir and mix the sand and sand-fixing agent, so that the sand agglomerates. The rotating control rod (12) drives the pull rope (15) to control the baffle plate (14) to slide upward. At this time, the sand agglomerates on the inner wall of the treatment tank (5) can enter the pellet preparation box (6). The first motor (7) drives multiple sets of pellet preparation rods (13) to rotate. The sand agglomerates are formed through the circular groove (23) on the surface of the pellet preparation rod (13), and finally discharged from the discharge port (8). S2: The rotation of the rotating rod (11) can drive the push rod (18) to rotate. At this time, the rotating push rod (18) pushes and presses the elastic rod (20) to deform and swing. The elastic potential energy released by the elastic rod (20) can collide with the impact rod (19) to make the filter plate (9) vibrate.

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