A saline-alkali land treatment device and its usage method

Abstract

This application relates to the technical field of saline-alkali land treatment, and particularly relates to a saline-alkali land treatment device and its usage method. A saline-alkali land treatment device includes a horizontal directional drill, a drill pipe connected to the horizontal directional drill, a roller cone bit connected to the drill pipe, a water pumping mechanism connected to the drill pipe, and a blocking mechanism connected to the inside of the drill pipe. The number of drill pipes is multiple, and the multiple drill pipes are connected to each other. The blocking mechanism is located between the drill pipe and the roller cone bit, and the blocking mechanism seals the drill pipe. This application has the effect of improving the treatment effect of saline-alkali land.

Description

Technical Field

[0001] The present application relates to the technical field of saline-alkali land treatment, and in particular to a saline-alkali land treatment device and a method for using the same. Background Art

[0002] Saline-alkali land is a type of salt accumulation, which refers to the situation where the salt content in the soil affects the normal growth of crops. The formation of alkali soil and alkalized soil is mostly related to the accumulation of carbonates in the soil, so the alkalization degree is generally high, and plants can hardly survive in severely saline-alkali soil areas.

[0003] Currently, when treating saline-alkali land, the method of washing salt with salt water is adopted. First, salt water is discharged onto the surface of the saline-alkali land. After the first layer of salt water freezes, more salt water is poured in until the depth of the salt water frozen layer is 20 cm - 25 cm. Then, when the salt water frozen layer melts, the first layer of ice near the ground surface with a higher salt content melts first, and then the water flow formed by the melting of the ice layer with a lower salt content washes the salt into the deep layer of the soil, completing the treatment of the saline-alkali land.

[0004] In view of the above related technologies, after the inventor uses the method of washing salt with salt water, the salt water may be washed into the groundwater layer. Then, under the transpiration effect of the ground surface, as the water is lost, the salt will precipitate again towards the direction close to the ground surface, reducing the treatment effect of the saline-alkali land. Summary of the Invention

[0005] In order to improve the treatment effect of saline-alkali land, the present application provides a saline-alkali land treatment device and a method for using the same.

[0006] A saline-alkali land treatment device and a method for using the same provided by the present application adopt the following technical solutions:

[0007] A saline-alkali land treatment device and a method for using the same include a horizontal directional drill, a drill pipe connected to the horizontal directional drill, a roller cone bit connected to the drill pipe, a water pumping mechanism connected to the drill pipe, and a blocking mechanism connected inside the drill pipe. The number of drill pipes is multiple, and the multiple drill pipes are connected to each other. The blocking mechanism is located between the drill pipe and the roller cone bit, and the blocking mechanism seals the drill pipe.

[0008] By adopting the above technical solutions, when a user uses the salt water method to treat saline-alkali land, the roller cone bit is connected to the drill pipe with a water pumping mechanism and a blocking mechanism. Then, according to the position of the groundwater, the direction of the roller cone bit is controlled. The roller cone bit drives the first section of the drill pipe into the groundwater layer. At this time, the blocking mechanism is opened to disconnect the connection between the roller cone bit and the first section of the drill pipe. Then, the water pumping mechanism is started to pump groundwater from the outside into the drill pipe, so that the groundwater flows out of the drill pipe, reducing the salt content in the saline-alkali land and reducing the possibility of salt precipitation from the ground when the weather warms up, thereby improving the treatment effect of the saline-alkali land.

[0009] Optionally, the water pumping mechanism includes an inlet electric valve connected to the drill pipe, a water pump fixedly connected to the drill pipe, and an outlet electric valve communicated with the water pump. The inlet electric valve and the outlet electric valve are respectively communicated with the inlet and outlet pipes of the water pump.

[0010] By adopting the above technical solution, when the user opens the inlet electric valve, groundwater can enter the drill bit through the water pump and the outlet, achieving the purpose of groundwater entering the drill pipe. Then, the groundwater is collected, reducing water resource waste and at the same time reducing the amount of salt precipitation, improving the effect of saline-alkali land treatment.

[0011] Optionally, the water pumping mechanism further includes a safety box fixedly connected to the inner wall of the drill pipe, and the water pump is fixedly connected to the inside of the safety box.

[0012] By adopting the above technical solution, while achieving a firm connection, the safety box can protect the water pump and improve the working life of the water pump.

[0013] Optionally, the blocking mechanism includes a mounting plate fixedly connected to the drill pipe and an opening and closing assembly connected to the mounting plate. The mounting plate is a circular plate, concentric with the drill pipe. The circumferential side wall of the mounting plate is fixedly connected to the inner wall of the drill pipe. The mounting plate is provided with a water passing hole and a sliding groove. The sliding groove is located on the hole wall of the water passing hole, and the sliding groove communicates with the water passing hole. The opening and closing assembly is connected to the inside of the sliding groove. The number of the opening and closing assemblies is two, and the ends of the two opening and closing assemblies move towards each other or away from each other, and the opening and closing assembly blocks the water passing hole.

[0014] By adopting the above technical solution, the opening and closing assembly closes the water passing hole, so that when the water pumping mechanism pumps water, water will not flow back from the direction of the roller cone bit to the groundwater layer, improving the water pumping efficiency; the end of the sealing assembly abuts against the gap between the water passing hole and the opening and closing plate, reducing the possibility of water passing through the gap and improving the water pumping efficiency.

[0015] Optionally, the opening and closing assembly includes a driving motor fixedly connected to the mounting plate, a moving lead screw rotatably connected to the inner wall of the sliding groove, and an opening and closing plate slidably connected to the inner wall of the sliding groove. The output end of the driving motor is fixedly connected to one end of the moving lead screw. One end of the moving lead screw is rotatably connected to the inner wall of the sliding groove, and the other end of the moving lead screw extends towards the water passing hole. The moving lead screw passes through and is threadedly connected to the opening and closing plate. The two opening and closing plates move towards each other or away from each other, and the opening and closing plate blocks the water passing hole.

[0016] By adopting the above technical solution, when the user starts the driving motor, the two opening and closing plates move towards each other or away from each other. When the two opening and closing plates move towards each other and abut, the opening and closing plate blocks the water passing hole. At this time, the possibility of water flowing out from the water eye of the roller cone bit through the water passing hole can be reduced, improving the utilization rate of groundwater.

[0017] Optionally, the barrier mechanism further includes a sealing assembly connected to the mounting plate, and the end of the sealing assembly abuts against the gap between the water passage hole and the opening and closing plate.

[0018] By adopting the above technical solution, the possibility of water flowing away from the gap is reduced, and the water pumping effect is improved.

[0019] Optionally, sealing assemblies are provided on both sides of the opening and closing plate.

[0020] By adopting the above technical solution, the sealing effect is improved, the possibility of water flowing away from the gap is reduced, and the water pumping effect is improved.

[0021] Optionally, the sealing assembly includes a sealing motor fixedly connected to the mounting plate, a sealing lead screw rotatably connected to the mounting plate, a linkage bar threadedly connected to the sealing lead screw, and a sealing strip fixedly connected to the linkage bar. The number of linkage bars is two. Both ends of the linkage bar are slidably connected to the mounting plate, and the two linkage bars are parallel to each other. The sealing lead screw passes through and is threadedly connected to the two linkage bars. The threads of the two linkage bars are threads in opposite directions. The output end of the sealing motor is coaxially and fixedly connected to the sealing lead screw, and the sealing strip abuts against the gap between the water passage hole and the opening and closing plate.

[0022] By adopting the above technical solution, when the sealing motor is started, it drives the two sealing strips to move in opposite directions. The sealing strip is in a stepped shape. Part of the sealing strip is inserted into the gap between the water passage hole and the opening and closing plate, and part of the sealing strip abuts against the end surface of the opening and closing plate, so that the sealing strip abuts against the gap between the water passage hole and the opening and closing plate. The number of sealing lead screws and the number of sealing motors are both two. The two sealing lead screws are respectively located at both ends of the linkage bar, making the movement of the linkage bar more stable.

[0023] Optionally, the sealing strip is in a stepped shape. Part of the sealing strip is inserted into the gap between the water passage hole and the opening and closing plate, and part of the sealing strip abuts against the end surface of the opening and closing plate.

[0024] By adopting the above technical solution, the contact area between the mounting plate and the opening and closing plate is increased, and the sealing effect is improved.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. By providing a water pumping mechanism in the present application, the extraction of groundwater is realized, the transfer of salt is realized, the possibility of salt precipitation is reduced, and the effect of saline-alkali land treatment is improved;

[0027] 2. By providing a barrier mechanism in the present application, the utilization rate of the groundwater channel is improved. Description of the Drawings

[0028] Figure 1It is a schematic structural diagram of a saline-alkali land treatment device;

[0029] Figure 2 It is a partial cross-sectional view emphasizing the connection relationship of the water extraction mechanism;

[0030] Figure 3 It is a partial cross-sectional view emphasizing the connection relationship of the barrier mechanism.

[0031] Explanation of reference numerals: 1. Horizontal directional machine; 2. Drill pipe; 3. Roller cone bit; 4. Water extraction mechanism; 41. Inlet electric valve; 42. Water pump; 43. Outlet electric valve; 44. Safety box; 5. Barrier mechanism; 51. Installation plate; 511. Water passing hole; 512. Sliding groove; 52. Opening and closing assembly; 521. Driving motor; 522. Moving lead screw; 5221. Sealing extrusion block; 523. Opening and closing plate; 53. Sealing assembly; 531. Sealing motor; 532. Sealing lead screw; 533. Linking bar; 534. Sealing strip. Detailed implementation manners

[0032] The following further elaborates on this application in conjunction with the attached Figures 1 - 3 drawings.

[0033] The embodiments of this application disclose a saline-alkali land treatment device and its usage method.

[0034] Referring to Figures 1 - 3 , a saline-alkali land treatment device includes a horizontal directional machine 1, a drill pipe 2 connected to the horizontal directional machine 1, a roller cone bit 3 connected to the drill pipe 2, a water extraction mechanism 4 connected to the drill pipe 2, and a barrier mechanism 5 connected inside the drill pipe 2. The number of drill pipes 2 is multiple, and the multiple drill pipes 2 are connected to each other. The barrier mechanism 5 is located between the drill pipe 2 and the roller cone bit 3, and the barrier mechanism 5 seals the drill pipe 2. When a user treats saline-alkali land by means of washing salt with salt water or flooding with fresh water, the roller cone bit 3 is connected to the drill pipe 2 with the water extraction mechanism 4 and the barrier mechanism 5, and the drill pipe 2 is connected to the horizontal directional machine 1. The horizontal directional machine 1 drives the roller cone bit 3 and the first drill pipe 2 into the ground, and then, according to the position of the groundwater, the direction of the roller cone bit 3 is controlled, and ordinary drill pipes 2 are connected at the same time, so that the roller cone bit 3 drives the first drill pipe 2 into the groundwater layer. At this time, the barrier mechanism 5 is opened to disconnect the connection between the roller cone bit 3 and the first drill pipe 2, and then the water extraction mechanism 4 is started to pump groundwater from the outside into the drill pipe 2, so that the groundwater flows out of the drill pipe 2, reducing the salt content in the saline-alkali land and reducing the possibility of salt precipitating from the ground when the weather warms up, thereby improving the effect of treating saline-alkali land.

[0035] Moreover, the user can collect the groundwater pumped out by the water pumping mechanism 4. When treating saline-alkali land by washing salt with saline water on other farmlands, the groundwater containing a large amount of salt can be used as brine, improving the utilization rate of resources. Or when the user treats the land by means of fresh water flooding, it may cause the groundwater level to rise, resulting in salt return, which instead reduces the treatment effect. By discharging and utilizing the groundwater in this application, the possibility of salt return is reduced, and the treatment effect of saline-alkali land is improved.

[0036] Refer to Figure 2 and Figure 3 , the water pumping mechanism 4 is connected to one end of the drill pipe 2 close to the roller bit 3. When the roller bit 3 brings the drill pipe 2 into a certain part, the groundwater can be pumped out through the water pumping mechanism 4 without excessive movement of the roller bit 3, reducing energy consumption. The water pumping mechanism 4 includes an inlet electric valve 41 connected to the drill pipe 2, a safety box 44 fixedly connected to the inner wall of the drill pipe 2, a water pump 42 fixedly connected inside the safety box 44, and an outlet electric valve 43 communicated with the water pump 42. The inlet electric valve 41 is connected to the drill bit, and the outlet electric valve 43 is connected to the side wall of the safety box 44 to achieve a stable connection. The inlet electric valve 41 and the outlet electric valve 43 are respectively communicated with the inlet and outlet pipes of the water pump 42. The inlet electric valve 41 is communicated with the outside and the drill pipe 2. When the user opens the inlet electric valve 41, the groundwater can enter the drill pipe 2 through the water pump 42 and the outlet. When the user pumps water with the water pump 42, first turn on the water pump 42 and the inlet electric valve 41. When the operation of the water pump 42 is stable, turn on the outlet electric valve 43 to protect the water pump 42 and improve the working life of the water pump 42.

[0037] Refer to Figure 2 and Figure 3, the blocking mechanism 5 includes a mounting plate 51 fixedly connected to the drill pipe 2, an opening and closing assembly 52 connected to the mounting plate 51, and a sealing assembly 53 connected to the mounting plate 51. The mounting plate 51 is a circular plate, concentric with the drill pipe 2. The circumferential side wall of the mounting plate 51 is fixedly connected to the inner wall of the drill pipe 2. The mounting plate 51 is provided with a water passing hole 511 and a sliding groove 512. The water passing hole 511 is used for the circulation of water, so that water flows out at the water eye of the roller bit 3, realizing the basic function of the roller bit 3. The sliding groove 512 is located on the hole wall of the water passing hole 511 and communicates with the water passing hole 511. The opening and closing assembly 52 is connected to the inside of the sliding groove 512. The number of the opening and closing assemblies 52 is two, and the ends of the two opening and closing assemblies 52 move towards each other or away from each other. The opening and closing assembly 52 blocks the water passing hole 511, and the sliding groove 512 plays a limiting role in the blocking movement of the opening and closing assembly 52, making the movement of the opening and closing assembly 52 smoother. The opening and closing assembly 52 can also close the water passing hole 511, so that when the water pumping mechanism 4 pumps water, water will not flow back from the direction of the roller bit 3 into the groundwater layer, improving the efficiency of water pumping. The end of the sealing assembly 53 abuts against the gap between the water passing hole 511 and the opening and closing plate 523, reducing the possibility of water passing through the gap and improving the efficiency of water pumping.

[0038] Refer to Figure 2 and Figure 3 , the number of the opening and closing assemblies 52 is two. The two opening and closing assemblies 52 are respectively located on both sides of the water passing hole 511. The opening and closing assembly 52 includes a driving motor 521 fixedly connected to the mounting plate 51, a moving lead screw 522 rotatably connected to the inner wall of the sliding groove 512, and an opening and closing plate 523 slidably connected to the inner wall of the sliding groove 512. The output end of the driving motor 521 can be coaxially and fixedly connected to one end of the moving lead screw 522 by means of a coupling, driving the rotation of the moving lead screw 522. One end of the moving lead screw 522 is rotatably connected to the inner wall of the sliding groove 512, and the other end of the moving lead screw 522 extends towards the water passing hole 511. The axial direction of the moving lead screw 522 is parallel to the groove direction of the sliding groove 512. The two moving lead screws 522 are parallel to each other. The moving lead screw 522 passes through and is threadedly connected to the opening and closing plate 523. The opening and closing plate 523 is slidably connected to the sliding groove 512 along the direction parallel to the axis of the moving lead screw 522. The sliding groove 512 plays a limiting role on the opening and closing plate 523, realizing the sliding movement of the opening and closing plate 523. When the user starts the driving motor 521, the two opening and closing plates 523 move towards each other or away from each other. When the two opening and closing plates 523 approach each other and abut, the opening and closing plate 523 blocks the water passing hole 511. At this time, the possibility of water flowing into the water eye of the roller bit 3 through the water passing hole 511 and flowing out can be reduced, improving the utilization rate of groundwater. When the two opening and closing plates 523 do not contact, water can flow out from the water eye, realizing the basic function of the roller bit 3.

[0039] Refer toFigure 2 and Figure 3 On both sides of the opening and closing plate 523, a sealing assembly 53 is provided. The sealing assembly 53 includes a sealing motor 531 fixedly connected to the mounting plate 51, a sealing lead screw 532 rotatably connected to the mounting plate 51, a linkage bar 533 threadedly connected to the sealing lead screw 532, and a sealing strip 534 fixedly connected to the linkage bar 533. The number of linkage bars 533 is two. Both ends of the linkage bar 533 are slidably connected to the mounting plate 51, and the two linkage bars 533 are parallel to each other. The sealing lead screw 532 passes through and is threadedly connected to the two linkage bars 533. The threads of the two linkage bars 533 are threads in opposite directions. The output end of the sealing motor 531 can be coaxially and fixedly connected to one end of the sealing lead screw 532 by means of a coupling. When the sealing motor 531 is started, it drives the two sealing strips 534 to move in opposite directions. The sealing strip 534 is stepped. Part of the sealing strip 534 is inserted into the gap between the water passing hole 511 and the opening and closing plate 523, and part of the sealing strip 534 abuts against the end surface of the opening and closing plate 523, so that the sealing strip 534 abuts against the gap between the water passing hole and the opening and closing plate 523. The number of sealing lead screws 532 and the number of sealing motors 531 are both two. The two sealing lead screws 532 are respectively located at both ends of the linkage bar 533, making the movement of the linkage bar 533 more stable.

[0040] A method for using a saline-alkali land treatment device includes the following steps:

[0041] S1. When the saline-alkali land is treated by the salt washing method, when the outdoor temperature is less than or equal to minus five degrees, the saline-alkali land is irrigated with brine for the first time. When the brine freezes into ice, the ice layer is irrigated with brine again until the ice layer thickness is 20 cm - 25 cm; or it is treated by the method of flooding with fresh water;

[0042] S2. Connect the roller bit 3 to the drill pipe 2 provided with the water pumping mechanism 4 and the sealing assembly 53, and install the roller bit 3 and the first section of the drill pipe 2 on the horizontal directional drill. Then, start the horizontal directional drill at the designated position. There is a gap between the opening and closing plates 523. Close the inlet electric valve 41 and the outlet electric valve 43, and turn off the water pump 42. As required by the working conditions, connect other ordinary drill pipes 2 to the horizontal directional drill;

[0043] S3. After the water melts, connect the drill pipe 2 to the external collection place, turn on the drive motor 521, and the opening and closing plates 523 move towards each other until the opening and closing plates 523 abut against each other;

[0044] S4. Turn on the sealing motor 531, and the sealing strip 534 abuts against the gap between the water passing hole and the opening and closing plate 523;

[0045] S5. Open the inlet water electric valve 41 and the water pump 42. After the water pump 42 works stably, start the outlet water electric valve 43.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A saline-alkali land treatment device, comprising a horizontal directional drill (1), a drill pipe (2) connected to the horizontal directional drill (1), and a roller cone bit (3) connected to the drill pipe (2). The number of drill pipes (2) is multiple, and the multiple drill pipes (2) are connected to each other. Characterized in that: A saline-alkali land treatment device further includes a water pumping mechanism (4) connected to the drill pipe (2) and a blocking mechanism (5) connected inside the drill pipe (2). The blocking mechanism (5) is located between the drill pipe (2) and the roller bit (3), and the blocking mechanism (5) seals the drill pipe (2). The blocking mechanism (5) includes a mounting plate (51) fixedly connected to the drill pipe (2) and an opening and closing assembly (52) connected to the mounting plate (51). The mounting plate (51) is a circular plate, concentric with the drill pipe (2). The circumferential side wall of the mounting plate (51) is fixedly connected to the inner wall of the drill pipe (2). The mounting plate (51) is provided with a water passing hole (511) and a sliding groove (512). The sliding groove (512) is located on the hole wall of the water passing hole (511) and communicates with the water passing hole (511). The opening and closing assembly (52) is connected to the inside of the sliding groove (512). The number of the opening and closing assemblies (52) is two, and the ends of the two opening and closing assemblies (52) move towards each other, and the opening and closing assembly (52) seals the water passing hole (511). The opening and closing assembly (52) includes a driving motor (521) fixedly connected to the mounting plate (51), a moving lead screw (522) rotatably connected to the inner wall of the sliding groove, and an opening and closing plate (523) slidably connected to the inner wall of the sliding groove. The output end of the driving motor (521) is fixedly connected to one end of the moving lead screw (522). One end of the moving lead screw (522) is rotatably connected to the inner wall of the sliding groove (512). The other end of the moving lead screw (522) extends towards the water passing hole (511). The moving lead screw (522) passes through and is threadedly connected to the opening and closing plate (523). The two opening and closing plates (523) move towards each other, and the opening and closing plate (523) seals the water passing hole (511). The blocking mechanism (5) further includes a sealing assembly (53) connected to the mounting plate (51). The end of the sealing assembly (53) abuts against the gap between the water passing hole (511) and the opening and closing plate (523). Sealing assemblies (53) are arranged on both sides of the opening and closing plate (523). The sealing assembly (53) includes a sealing motor (531) fixedly connected to the mounting plate (51), a sealing lead screw (532) rotatably connected to the mounting plate (51), a linkage bar (533) threadedly connected to the sealing lead screw (532), and a sealing strip (534) fixedly connected to the linkage bar (533). The number of the linkage bars (533) is two. Both ends of the linkage bar (533) are slidably connected to the mounting plate (51), and the two linkage bars (533) are parallel to each other. The sealing lead screw (532) passes through and is threadedly connected to the two linkage bars (533). The threads at the connection of the two linkage bars (533) and the sealing lead screw (532) are threads in opposite directions. The output end of the sealing motor (531) is coaxially fixedly connected to the sealing lead screw (532). The sealing strip (534) abuts against the gap between the water passing hole (511) and the opening and closing plate (523).The sealing strip (534) is stepped, and part of the sealing strip (534) is inserted into the gap between the water through hole (511) and the opening and closing plate (523), and part of the sealing strip (534) abuts against the end surface of the opening and closing plate (523).; 2. A saline-alkali land treatment device according to claim 1, Characterized in that: The water extraction mechanism (4) includes an inlet water electric valve (41) connected to the drill pipe (2), a water pump (42) fixedly connected to the drill pipe (2), and an outlet water electric valve (43) communicated with the water pump (42). The inlet water electric valve (41) and the outlet water electric valve (43) are respectively communicated with the inlet and outlet pipes of the water pump (42).

3. A saline-alkali land treatment device according to claim 2, Characterized in that: The water extraction mechanism (4) further includes a safety box (44) fixedly connected to the inner wall of the drill pipe (2), and the water pump (42) is fixedly connected to the inside of the safety box (44).

4. A method for using a saline-alkali land treatment device, applying the saline-alkali land treatment device according to claim 3 above, Characterized in that: It includes the following steps: Connect the roller cone bit (3) to the drill pipe (2) provided with the water extraction mechanism (4) and the sealing mechanism, and start the horizontal directional drill; The saline-alkali land is treated by the method of washing salt with salt water or flooding with fresh water; There is a gap between the opening and closing plates (523). Close the inlet water electric valve (41) and the outlet water electric valve (43), and turn off the water pump (42); Connect multiple ordinary drill pipes (2) to the first drill pipe (2) in sequence according to the working conditions; After the roller cone bit (3) enters the groundwater layer, connect the drill pipe (2) to the external collection place, open the inlet water electric valve (41) and the water pump (42). After the water pump (42) works stably, start the outlet water electric valve (43); Start the driving motor (521), and the opening and closing plates (523) close towards each other; Start the sealing motor (531), and the sealing strip (534) abuts against the gap between the water passing hole and the opening and closing plates (523).

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