A selenium element detection device for silt dam soil

Abstract

The invention discloses a device for detecting selenium in silt dam soil, comprising a soil drilling component, a driving component is provided at the upper end of the soil drilling component, an auxiliary component is provided on one side of the driving component, and a processing component is provided on the other side of the driving component. The soil drilling component comprises a drill barrel, the upper and lower ends of the drill barrel are both provided with connecting grooves, rotating shafts are provided on both sides of the bottom end of the drill barrel, the rotating shafts are movably sleeved with connecting rods, the bottom end of the connecting rods is fixedly connected with a drill bit, a cavity is provided inside the drill bit, a lower sleeve is movably sleeved in the cavity of the drill bit, and a uniformly distributed lower return spring is fixedly connected between the lower sleeve and the bottom end of the cavity of the drill bit, a lower micro air pump is provided outside the cavity of the drill bit, a drill tooth is provided at the bottom end of the drill bit, and support plates are provided on both sides of the drill bit. The device for detecting selenium in silt dam soil combines the drilling soil sampling and soil processing processes to make the working process more coherent. The device can cut the soil sample at both ends to improve the quality of the soil sample.

Description

Technical Field

[0001] The present invention relates to the technical field of soil element detection, and more particularly to a device for detecting selenium in silt dam soil. Background Art

[0002] Selenium is one of the essential trace elements for the human body. The main source of selenium intake is agricultural and sideline products grown on the soil on which humans depend for survival. Appropriate selenium supplementation can enhance the body's immune function, but excessive selenium can cause poisoning. Therefore, the determination of soil selenium content is crucial.

[0003] The determination of selenium content in soil is primarily done using the atomic fluorescence method. This involves collecting a soil sample, heating it for digestion, adding a reducing agent to reduce hexavalent selenium to tetravalent selenium, then adding potassium borohydride to generate hydrogen selenide. Argon gas is introduced into a quartz atomizer for atomization, and the sample is excited by light emitted by a special selenium hollow cathode lamp to produce fluorescence. The intensity of the fluorescence is proportional to the content of the element being measured in the sample. The fluorescence is then compared with a standard series within a certain concentration range to calculate the selenium content in the sample. However, the above-mentioned detection equipment still has the following deficiencies when used for soil sampling:

[0004] First, traditional soil selenium testing equipment first uses a drill to extract soil samples, and then transfers the soil samples in the drill to a heated digestion container for further processing. The two devices are independent of each other, and the soil processing process is not coherent, making the use process inconvenient.

[0005] Secondly, soil sampling should remove the soil at the surface and deep layers, leaving only the middle soil layer that directly affects the root system of crops. However, the soil sampling process of existing equipment directly processes the soil at the surface and deep layers. Since the surface soil is on the surface, it is greatly affected by external factors and is unstable, while the deep soil is not easy to directly affect the root system of crops. Therefore, when using a drill tube to take samples, the soil at the upper and lower ends needs to be removed, and existing equipment does not have this function.

[0006] Third, existing soil selenium detection equipment cannot directly observe the specific depth of the soil when drilling, which affects the comparison of selenium determination in soils at different depths.

[0007] Therefore, it is necessary to provide a silt dam soil selenium element detection device to solve the above problems. Summary of the Invention

[0008] In order to overcome the above-mentioned defects of the prior art, the present invention provides a selenium element detection device for silt dam soil to solve the problems existing in the above-mentioned background technology.

[0009] The present invention provides the following technical solution: a device for detecting selenium in silt dam soil, comprising a soil drilling assembly, a driving assembly being provided at the upper end of the soil drilling assembly, an auxiliary assembly being provided on one side of the driving assembly, and a processing assembly being provided on the other side of the driving assembly;

[0010] The soil drilling assembly includes a drill barrel, the upper and lower ends of the drill barrel are provided with connecting grooves, both sides of the bottom end of the drill barrel are provided with rotating shafts, the rotating shafts are movably connected with connecting rods, the bottom end of the connecting rod is fixedly connected with a drill bit, the interior of the drill bit is provided with a cavity, the cavity of the drill bit is movably connected with a lower ring, a uniformly distributed lower return spring is fixedly connected between the lower ring and the bottom end of the cavity of the drill bit, a lower micro air pump is provided outside the cavity of the drill bit, the bottom end of the drill bit is provided with drilling teeth, support plates are provided on both sides of the drill bit, the upper end of the support plate is fixedly connected with a connecting plate, and the outside of the connecting plate is provided with uniformly distributed spiral fragments.

[0011] Furthermore, the upper end of the connecting plate is fixedly connected to a ring sleeve, the ring sleeve is fixedly sleeved with a rotating hub, a cavity is opened inside the rotating hub, the cavity of the rotating hub is movably sleeved with an upper ring, and an evenly distributed upper return spring is fixedly connected between the upper ring and the upper end of the cavity of the rotating hub, and an upper micro air pump is fixedly installed on the outside of the cavity of the rotating hub.

[0012] Furthermore, the drive assembly includes a mounting plate, the mounting plate is movably sleeved with a bearing, the inner ring of the bearing is movably sleeved with the upper end of the rotating hub, the upper end of the mounting plate is fixedly connected with a mounting seat, the upper end of the mounting seat is provided with a drilling motor, the driving shaft of the drilling motor is fixedly connected to the center of the upper end of the rotating hub, support rods are fixedly installed on both sides of the mounting plate, threaded sleeves are fixedly installed at both ends of the upper surface of the mounting plate, the threaded sleeves are threadedly sleeved with threaded rods, the bottom end of the mounting plate is fixedly installed with evenly distributed limit blocks, the side ends of the mounting plate are fixedly installed with shaft support blocks, and connecting rods are fixedly sleeved between the shaft support blocks.

[0013] Furthermore, the auxiliary component includes a connecting plate, which is fixedly connected to the side of the mounting plate, and the connecting plate is provided with a sleeve hole, and the sleeve hole provided by the connecting plate is movably sleeved with a push rod, and the push rod is provided with a scale groove, and the upper end of the push rod is movably sleeved with a hand wheel, and the bottom end of the hand wheel is provided with an engaging rod, and the upper end of the push rod is provided with a coupling hole, and the engaging hole of the engaging rod and the push rod are sleeved with each other.

[0014] Furthermore, the processing component includes a movable plate, the side ends of the movable plate are movably connected to the shaft of the mounting plate, and engaging sleeves are provided on both sides of the upper surface of the movable plate. Vertical plates are fixedly installed on the front and rear ends of the upper surface of the movable plate, and cutting electric cylinders are fixedly installed on the outer side surfaces of the vertical plates. The driving shafts of the cutting electric cylinders are fixedly connected to cutting blades, and the cutting blades pass through the movable plate and are movably connected to it. Two knife sleeve plates are fixedly installed on the bottom of the movable plate, and the knife sleeve plates are respectively connected to the two cutting blades.

[0015] Furthermore, a coupling tube is fixedly installed at the bottom end of the movable plate, a fitting ring is provided at the bottom end of the coupling tube, a coupling groove is provided at the upper end of the coupling tube, an opening and closing electric cylinder is provided at the bottom end of the movable plate, a driving shaft of the opening and closing electric cylinder is fixedly connected to the opening and closing plate, a rubber arc edge is provided at the front end of the opening and closing plate, the opening and closing plate is movably sleeved with the coupling groove, a processing box is fixedly installed at the upper end of the movable plate, a stirring motor is fixedly installed on the outer side of the processing box, a driving shaft of the stirring motor is fixedly connected to a paddle shaft, the paddle shaft is located inside the processing box, and an electric heating rod is fixedly installed inside the processing box.

[0016] Furthermore, the movable plate is provided with a through hole, and the through hole provided by the movable plate enables the pipeline of the connecting pipe to communicate with the internal space of the processing box. The upper end of the processing box is fixedly connected with a liquid injection pipe, and the liquid injection pipe connected to the upper end of the processing box is provided with a solenoid valve. The upper end of the solenoid valve is fixedly connected with a liquid tank, and the interior of the liquid tank is filled with a reducing agent. A solution pipe is fixedly installed on the outside of the processing box, and a valve is provided on the pipe body of the solution pipe.

[0017] The technical effects and advantages of the present invention are as follows:

[0018] 1. The present invention comprises a soil drilling assembly and a processing assembly. After the soil drilling is completed, the movable plate rotates to a vertical state with the connecting rod as the axis, and the limit block provides a limiting support function. After the cutting is completed, the position of the drill barrel is adjusted and it is rotated with the rotating shaft as the axis so that it can be docked with the connecting tube. The chimeric ring is embedded in the connecting groove to make the docking more stable. The push rod is removed from the connecting plate and inserted into the drill barrel. The push rod is used to push the soil sample in the drill barrel. The soil sample feed amount can be judged by observing the scale groove. After the soil enters the processing box through the connecting tube, the opening and closing electric cylinder drives the opening and closing plate to push the pipe of the connecting tube to close. The rubber arc edge improves the airtightness. The stirring motor drives the blade shaft to rotate and stir the sample soil. After the solenoid valve is opened, the reducing agent in the liquid tank is injected into the processing box and mixed with the sample soil. Under the heating of the electric heating rod, the soil is heated and digested and the selenium element is reduced. After the valve is opened, the sample solution enters the solution tube for the next step of selenium element determination. This method connects the soil drilling and soil processing processes with each other, makes the working process coherent, and makes the work more convenient.

[0019] 2. The present invention is provided with a soil drilling assembly and a processing assembly. The rotation of the hub can drive the bottom drill barrel and the drill bit to rotate together. With the thrust given by the spiral fragments during the rotation, the drill barrel can be drilled into the soil during the rotation, and the soil will be filled into the interior of the drill barrel, thereby completing the sampling work. During the drilling process, the lower micro air pump and the upper micro air pump are started to blow air into the internal cavity of the drill bit and the internal cavity of the hub respectively, thereby pushing the lower collar and the upper collar to engage with the corresponding connecting grooves respectively. After the soil drilling is completed, the lower micro air pump and the upper micro air pump are turned off. Under the rebound action of the lower return spring and the upper return spring, the lower collar and the upper collar are reset and stored in the corresponding cavity. At this time, the soil layers at the upper and lower ends of the drill barrel will leak out. At this time, the upper cutting blade is aligned with the upper end of the drill barrel, and the lower cutting blade is aligned with the lower end of the drill barrel. Under the drive of the cutting electric cylinder, the upper and lower cutting blades are pushed to cut the soil leaking from the upper and lower ends of the drill barrel, removing the surface and deep soil of the soil sample, making the two ends of the sample more flat, and improving the sample quality.

[0020] 3. The present invention is provided with an auxiliary component. During the soil drilling and sampling process, the movable plate is rotated to a horizontal state, so that the threaded rod is threadedly connected with the coupling sleeve to fix it. At the same time, when the drill tube is fed downward, the shaft of the push rod also moves upward in the connecting plate. By observing the moving position of the scale groove, the depth of soil drilling can be judged. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic structural diagram of the soil drilling assembly of the present invention.

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the soil drilling assembly of the present invention.

[0024] Figure 4 Schematic diagram of the drive assembly structure of the present invention.

[0025] Figure 5 Schematic diagram of the auxiliary component structure of the present invention.

[0026] Figure 6 Schematic diagram of the processing component structure of the present invention.

[0027] Figure 7 It is a schematic diagram of the cross-sectional structure of the processing component of the present invention.

[0028] Figure 8 It is a schematic structural diagram of the cutting state of the present invention.

[0029] Figure 9 It is a structural schematic diagram of the soil sample feeding state of the present invention.

[0030] The accompanying drawings are marked as follows: 1. Drilling assembly; 101. Drill barrel; 102. Connecting groove; 103. Rotating shaft; 104. Connecting rod; 105. Drill bit; 106. Lower collar; 107. Lower return spring; 108. Lower micro air pump; 109. Drill teeth; 110. Support plate; 111. Connecting plate; 112. Spiral fragment; 113. Ring sleeve; 114. Rotating hub; 115. Upper collar; 116. Upper return spring; 117. Upper micro air pump; 2. Driving assembly; 201. Mounting plate; 202. Bearing; 203. Mounting seat; 204. Drilling motor; 205. Support rod; 206. Threaded sleeve; 207. Threaded rod; 208. Limit block; 209. Shaft support 3. Auxiliary components; 301. Connecting plate; 302. Push rod; 303. Scale groove; 304. Hand wheel; 305. Engaging rod; 4. Processing component; 401. Movable plate; 402. Engaging sleeve; 403. Vertical plate; 404. Cutting cylinder; 405. Cutting blade; 406. Knife plate; 407. Engaging tube; 408. Engaging ring; 409. Engaging groove; 410. Opening and closing cylinder; 411. Opening and closing plate; 412. Rubber arc edge; 413. Processing box; 414. Stirring motor; 415. Paddle shaft; 416. Heating rod; 417. Solenoid valve; 418. Liquid tank; 419. Solution tube; 420. Valve. DETAILED DESCRIPTION

[0031] The technical solutions of the present invention will be described clearly and completely below in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The silt dam soil selenium detection equipment involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] Reference Figure 1 The present invention provides a selenium detection device for silt dam soil, comprising a soil drilling component 1, a driving component 2 being provided at the upper end of the soil drilling component 1, an auxiliary component 3 being provided on one side of the driving component 2, and a processing component 4 being provided on the other side of the driving component 2;

[0033] In this embodiment, the driving component 2 can drive the drilling component 1 to rotate, and the drilling component 1 can rotate and drill into the soil, thereby realizing soil sampling, and then cooperate with the auxiliary component 3 and the processing component 4 to perform related soil processing work. The specific structure and working principle of the above components will be described in detail later.

[0034] Reference Figure 2 and Figure 3The soil drilling assembly 1 includes a drill barrel 101, and the upper and lower ports of the drill barrel 101 are both provided with connecting grooves 102. A rotating shaft 103 is provided on both sides of the bottom end of the drill barrel 101. The rotating shaft 103 is movably sleeved with a connecting rod 104. The bottom end of the connecting rod 104 is fixedly connected to a drill bit 105. The interior of the drill bit 105 is provided with a cavity. The cavity of the drill bit 105 is movably sleeved with a lower collar 106. A uniformly distributed lower return spring 107 is fixedly connected between the lower collar 106 and the bottom end of the cavity of the drill bit 105. A lower micro air pump 108 is provided outside the cavity of the drill bit 105. The bottom end of the drill bit 105 is provided with a drill tooth 109. Support plates 110 are provided on both sides of the drill bit 105. The upper end of the support plate 110 is fixedly connected to a connecting plate 111. The outer side of the connecting plate 111 is provided with evenly distributed spiral fragments 112. The upper end of the connecting plate 111 is fixedly connected to a ring sleeve 113. The ring sleeve 113 is fixedly sleeved with a rotating hub 114. The interior of the rotating hub 114 is provided with a cavity. The cavity of the rotating hub 114 is movably sleeved with an upper ring 115. Evenly distributed upper return springs 116 are fixedly connected between the upper ring 115 and the upper end of the cavity of the rotating hub 114. An upper micro air pump 117 is fixedly installed on the outer side of the cavity of the rotating hub 114.

[0035] In this embodiment, the rotation of the hub 114 can drive the bottom drill barrel 101 and the drill bit 105 to rotate together. Combined with the thrust given by the spiral fragment 112 during the rotation, the drill barrel 101 and the drill bit 105 can be drilled into the soil during the rotation, and the soil will be filled into the interior of the drill barrel 101, thereby completing the sampling work. During the drilling process, the lower micro air pump 108 and the upper micro air pump 117 are started to blow air into the internal cavity of the drill bit 105 and the internal cavity of the hub 114, respectively, thereby pushing the lower collar 106 and the upper collar 115 to engage with the corresponding connecting groove 102. After the soil drilling is completed, the lower micro air pump 108 and the upper micro air pump 117 are turned off. Under the rebound action of the lower return spring 107 and the upper return spring 116, the lower collar 106 and the upper collar 115 are reset and stored in the corresponding cavity. At this time, the soil layers at the upper and lower ends of the drill barrel 101 will leak out, thereby facilitating the subsequent removal of the surface and bottom layers of the soil sample.

[0036] Reference Figure 4, the drive assembly 2 includes a mounting plate 201, the mounting plate 201 is movably sleeved with a bearing 202, the inner ring of the bearing 202 is movably sleeved with the upper end of the rotating hub 114, the upper end of the mounting plate 201 is fixedly connected with a mounting seat 203, the upper end of the mounting seat 203 is provided with a drilling motor 204, the driving shaft of the drilling motor 204 is fixedly connected to the upper end center of the rotating hub 114, and support rods 205 are fixedly installed on both sides of the mounting plate 201. Threaded sleeves 206 are fixedly installed at both ends of the upper surface of the mounting plate 201, and the threaded sleeves 206 are threadedly sleeved with threaded rods 207. The bottom end of the mounting plate 201 is fixedly installed with evenly distributed limit blocks 208, and the side ends of the mounting plate 201 are fixedly installed with shaft support blocks 209, and connecting rods 210 are fixedly sleeved between the shaft support blocks 209;

[0037] In this embodiment, the drilling motor 204 is used to drive the bottom hub 114 to rotate, and the handrail 205 provides support. When in use, the staff can hold the handrails 205 at both ends to support the equipment, so that the bottom equipment can perform soil drilling and sampling work.

[0038] Reference Figure 5 The auxiliary component 3 includes a connecting plate 301, which is fixedly connected to the side of the mounting plate 201. The connecting plate 301 is provided with a sleeve hole, and a push rod 302 is movably sleeved in the sleeve hole provided in the connecting plate 301. The push rod 302 is provided with a scale groove 303. The upper end of the push rod 302 is movably sleeved with a hand wheel 304. The bottom end of the hand wheel 304 is provided with a fitting rod 305. The upper end of the push rod 302 is provided with a coupling hole. The fitting rod 305 and the coupling hole of the push rod 302 are sleeved together.

[0039] In this embodiment, the shaft of the push rod 302 can move in the sleeve hole opened in the connecting plate 301, and the engaging rod 305 and the engaging hole opened in the upper end of the push rod 302 can be separated, thereby separating the push rod 302 from the handwheel 304, so that the push rod 302 can be removed from the connecting plate 301.

[0040] Reference Figure 6-Figure 9The processing component 4 includes a movable plate 401, the side end of the movable plate 401 is movably connected to the shaft of the mounting plate 201, and both sides of the upper surface of the movable plate 401 are provided with a joint sleeve 402. The front end and the rear end of the upper surface of the movable plate 401 are fixedly mounted with a vertical plate 403, and the outer side of the vertical plate 403 is fixedly mounted with a cutting cylinder 404. The driving shaft of the cutting cylinder 404 is fixedly connected with a cutting blade 405, and the cutting blade 405 passes through the movable plate 401 and is in contact with the cutting blade 405. The movable sleeve has two knife sleeve plates 406 fixedly installed at the bottom of the movable plate 401, and the knife sleeve plates 406 are respectively sleeved with the two cutting blades 405. The bottom end of the movable plate 401 is fixedly installed with a joint tube 407, the bottom end of the joint tube 407 is provided with a fitting ring 408, and the upper end of the joint tube 407 is provided with a joint groove 409. The bottom end of the movable plate 401 is provided with an opening and closing electric cylinder 410, and the driving shaft of the opening and closing electric cylinder 410 is fixedly connected with the opening and closing plate 411. The front end of the plate 411 is provided with a rubber arc edge 412, the opening and closing plate 411 is movably connected to the coupling groove 409, the upper end of the movable plate 401 is fixedly installed with a processing box 413, the outer side of the processing box 413 is fixedly installed with a stirring motor 414, the driving shaft of the stirring motor 414 is fixedly connected with a blade shaft 415, the blade shaft 415 is located inside the processing box 413, the interior of the processing box 413 is fixedly installed with an electric heating rod 416, the movable plate 401 is provided with a through hole, the through hole provided in the movable plate 401 enables the pipeline of the coupling pipe 407 to communicate with the internal space of the processing box 413, the upper end of the processing box 413 is fixedly connected with a liquid injection pipe, the liquid injection pipe connected to the upper end of the processing box 413 is provided with a solenoid valve 417, the upper end of the solenoid valve 417 is fixedly connected with a liquid tank 418, the interior of the liquid tank 418 is filled with a reducing agent, the outer side of the processing box 413 is fixedly installed with a solution pipe 419, the pipe body of the solution pipe 419 is provided with a valve 420;

[0041] In this embodiment, refer to the attached Figure 8 At this time, the drill tube 101 is filled with soil samples. At this time, the movable plate 401 rotates to a vertical state with the connecting rod 210 as the axis, and the limit block 208 provides a limiting support. At this time, the upper cutting blade 405 is aligned with the upper end of the drill tube 101, and the lower cutting blade 405 is aligned with the lower end of the drill tube 101. Under the drive of the cutting electric cylinder 404, the upper and lower cutting blades 405 are pushed to cut the soil leaked from the upper and lower ends of the drill tube 101, removing the surface and deep soil of the soil sample, making the two ends of the sample more flat, and improving the sample quality. After the cutting is completed, refer to the attached Figure 9Adjust the position of the drill tube 101 and rotate it around the rotating shaft 103 so that it docks with the coupling tube 407. The chiseled ring 408 is embedded in the connection groove 102 to make the docking more stable. Remove the push rod 302 from the connection plate 301 and insert the push rod 302 into the drill tube 101. Use the push rod 302 to push the soil sample in the drill tube 101. The amount of soil sample fed can be determined by observing the scale groove 303. After the soil passes through the coupling tube 407 and enters the processing box 413, the opening and closing electric cylinder 410 drives the opening and closing plate 411 to push the pipe of the coupling tube 407 to close. The rubber arc edge 412 improves the airtightness. The stirring motor 414 drives the blade shaft 415 to rotate and stir the sample soil. After the solenoid valve 417 is opened, the reducing agent inside the liquid tank 418 is injected into the processing box 413 and mixed with the sample soil. Under the heating of the electric heating rod 416, the soil is heated and digested and the selenium element is reduced. After the valve 420 is opened, the sample solution enters the solution tube 419 for the next step of selenium element determination. During the process of drilling and sampling the soil, the movable plate 401 is rotated to a horizontal state, and the threaded rod 207 is threadedly connected with the coupling sleeve 402 to fix it. At the same time, when the drill barrel 101 is fed downward, the shaft of the push rod 302 also moves upward in the connecting plate 301. By observing the moving position of the scale groove 303, the depth of soil drilling can be judged.

[0042] The working principle and beneficial effects of the present invention are as follows: the rotation of the hub 114 can drive the bottom drill barrel 101 and the drill bit 105 to rotate together, and the thrust given by the spiral fragment 112 during the rotation process can be made to drill into the soil during the rotation process, and the soil will be filled into the interior of the drill barrel 101, thereby completing the sampling work. During the drilling process, the lower micro air pump 108 and the upper micro air pump 117 are started to blow air into the internal cavity of the drill bit 105 and the internal cavity of the hub 114 respectively, thereby pushing the lower collar 106 and the upper collar 115 to engage with the corresponding connecting groove 102 respectively. After the soil drilling is completed, the lower micro air pump 108 and the upper micro air pump 117 are turned off. Under the rebound action of the lower return spring 107 and the upper return spring 116, the lower collar 106 and the upper collar 115 are reset and stored in the corresponding cavity. At this time, the soil layers at the upper and lower ends of the drill barrel 101 will leak out, thereby cooperating with the subsequent work of removing the surface and bottom layers of the soil sample. Figure 8 At this time, the drill tube 101 is filled with soil samples. At this time, the movable plate 401 rotates to a vertical state with the connecting rod 210 as the axis, and the limit block 208 provides a limiting support. At this time, the upper cutting blade 405 is aligned with the upper end of the drill tube 101, and the lower cutting blade 405 is aligned with the lower end of the drill tube 101. Under the drive of the cutting electric cylinder 404, the upper and lower cutting blades 405 are pushed to cut the soil leaked from the upper and lower ends of the drill tube 101, removing the surface and deep soil of the soil sample, making the two ends of the sample more flat, and improving the sample quality. After the cutting is completed, refer to the attached Figure 9Adjust the position of the drill tube 101 and rotate it around the rotating shaft 103 so that it docks with the coupling tube 407. The chiseled ring 408 is embedded in the connection groove 102 to make the docking more stable. Remove the push rod 302 from the connection plate 301 and insert the push rod 302 into the drill tube 101. Use the push rod 302 to push the soil sample in the drill tube 101. The amount of soil sample fed can be determined by observing the scale groove 303. After the soil passes through the coupling tube 407 and enters the processing box 413, the opening and closing electric cylinder 410 drives the opening and closing plate 411 to push the pipe of the coupling tube 407 to close. The rubber arc edge 412 improves the airtightness. The stirring motor 414 drives the blade shaft 415 to rotate and stir the sample soil. After the solenoid valve 417 is opened, the reducing agent inside the liquid tank 418 is injected into the processing box 413 and mixed with the sample soil. Under the heating of the electric heating rod 416, the soil is heated and digested and the selenium element is reduced. After the valve 420 is opened, the sample solution enters the solution tube 419 for the next step of selenium element determination. During the process of drilling and sampling the soil, the movable plate 401 is rotated to a horizontal state, and the threaded rod 207 is threadedly connected with the coupling sleeve 402 to fix it. At the same time, when the drill barrel 101 is fed downward, the shaft of the push rod 302 also moves upward in the connecting plate 301. By observing the moving position of the scale groove 303, the depth of soil drilling can be judged.

[0043] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0044] Secondly: The drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures may refer to conventional designs. The same embodiment and different embodiments of the present invention may be combined with each other without conflict.

[0045] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A selenium element detection device for silt dam soil, characterized in that: It comprises a soil drilling assembly (1), wherein a driving assembly (2) is provided at the upper end of the soil drilling assembly (1), an auxiliary assembly (3) is provided on one side of the driving assembly (2), and a processing assembly (4) is provided on the other side of the driving assembly (2); The soil drilling assembly (1) comprises a drill barrel (101), the upper and lower ends of the drill barrel (101) are provided with connection grooves (102), the bottom end of the drill barrel (101) is provided with rotating shafts (103), the rotating shafts (103) are movably sleeved with connecting rods (104), the bottom end of the connecting rod (104) is fixedly connected with a drill bit (105), the inside of the drill bit (105) is provided with a cavity, the cavity of the drill bit (105) is movably sleeved with a lower collar (106), and evenly distributed lower return springs (107) are fixedly connected between the lower collar (106) and the bottom end of the cavity of the drill bit (105), the outer side of the cavity of the drill bit (105) is provided with a lower micro air pump (108), and the bottom end of the drill bit (105) is provided with a drill bit. teeth (109), support plates (110) are provided on both sides of the drill bit (105), the upper end of the support plate (110) is fixedly connected to a connecting plate (111), the outer side of the connecting plate (111) is provided with evenly distributed spiral fragments (112), the upper end of the connecting plate (111) is fixedly connected to a ring sleeve (113), the ring sleeve (113) is fixedly sleeved with a rotating hub (114), a cavity is provided inside the rotating hub (114), the cavity of the rotating hub (114) is movably sleeved with an upper ring (115), evenly distributed upper return springs (116) are fixedly connected between the upper ring (115) and the upper end of the cavity of the rotating hub (114), and an upper micro air pump (117) is fixedly installed on the outer side of the cavity of the rotating hub (114); The auxiliary component (3) includes a connecting plate (301), the connecting plate (301) is fixedly connected to the side of the mounting plate (201), the connecting plate (301) is provided with a sleeve hole, the sleeve hole provided in the connecting plate (301) is movably sleeved with a push rod (302), the push rod (302) is provided with a scale groove (303), the upper end of the push rod (302) is movably sleeved with a hand wheel (304), the bottom end of the hand wheel (304) is provided with a fitting rod (305), the upper end of the push rod (302) is provided with a coupling hole, the fitting rod (305) and the coupling hole of the push rod (302) are sleeved with each other; The processing assembly (4) includes a movable plate (401), both sides of the upper surface of the movable plate (401) are provided with coupling sleeves (402), the front end and the rear end of the upper surface of the movable plate (401) are fixedly mounted with vertical plates (403), the outer side surface of the vertical plate (403) is fixedly mounted with a cutting electric cylinder (404), the driving shaft of the cutting electric cylinder (404) is fixedly connected with a cutting blade (405), the cutting blade (405) passes through the movable plate (401) and is movably sleeved therewith, two knife sleeve plates (406) are fixedly mounted on the bottom of the movable plate (401), the knife sleeve plates (406) are sleeved with the two cutting blades (405) respectively, and a coupling tube (407) is fixedly mounted on the bottom end of the movable plate (401), and the bottom end of the coupling tube (407) is provided with an embedded The movable plate (401) is provided with an opening and closing electric cylinder (410), and the driving shaft of the opening and closing electric cylinder (410) is fixedly connected to the opening and closing plate (411). The front end of the opening and closing plate (411) is provided with a rubber arc edge (412). The opening and closing plate (411) is movably connected to the joining groove (409). The upper end of the movable plate (401) is fixedly installed with a processing box (413), and the outer side surface of the processing box (413) is fixedly installed with a stirring motor (414). The driving shaft of the stirring motor (414) is fixedly connected with a blade shaft (415). The blade shaft (415) is located inside the processing box (413), and the inside of the processing box (413) is fixedly installed with an electric heating rod (416).

2. The selenium detection device for silt dam soil according to claim 1, characterized in that: The driving assembly (2) includes a mounting plate (201), the mounting plate (201) is movably sleeved with a bearing (202), the inner ring of the bearing (202) is movably sleeved with the upper end of the rotating hub (114), the upper end of the mounting plate (201) is fixedly connected with a mounting seat (203), the upper end of the mounting seat (203) is provided with a soil drilling motor (204), the driving shaft of the soil drilling motor (204) is fixedly connected to the center of the upper end of the rotating hub (114), and the mounting plate Support rods (205) are fixedly installed on both sides of (201), threaded sleeves (206) are fixedly installed on both ends of the upper surface of the mounting plate (201), and the threaded sleeves (206) are threadedly sleeved with threaded rods (207), and the bottom end of the mounting plate (201) is fixedly installed with evenly distributed limit blocks (208), and the side ends of the mounting plate (201) are fixedly installed with shaft support blocks (209), and connecting rods (210) are fixedly sleeved between the shaft support blocks (209).

3. The selenium detection device for silt dam soil according to claim 2, characterized in that: The side end of the movable plate (401) is movably sleeved with the shaft of the connecting rod (210) on the mounting plate (201).

4. The selenium detection device for silt dam soil according to claim 3, characterized in that: The movable plate (401) is provided with a through hole, and the through hole provided in the movable plate (401) enables the pipeline of the connecting pipe (407) and the internal space of the processing box (413) to communicate with each other. The upper end of the processing box (413) is fixedly connected with a liquid injection pipe, and the liquid injection pipe connected to the upper end of the processing box (413) is provided with a solenoid valve (417). The upper end of the solenoid valve (417) is fixedly connected with a liquid tank (418), and the interior of the liquid tank (418) is filled with a reducing agent. A solution pipe (419) is fixedly installed on the outer side of the processing box (413), and a valve (420) is provided on the pipe body of the solution pipe (419).

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