Multi-element detection device arranged in field test platform

Abstract

The invention belongs to the technical field of mineral element detection, and provides a multi-element detection device arranged in a field test platform, the device comprises a fixed box, a crushing assembly, a grinding assembly, a transmission assembly and a detection assembly, the crushing assembly is used for crushing minerals into small blocks; the grinding assembly hammers the small blocks through a grinding piece to prepare powdery sand grains; the conveying assembly transversely conveys powder. In the detection assembly, a moving part supports and moves powder; the tabletting piece is used for tabletting the powder into a flaky sample; the sheet-shaped sample is supported by the sheet supporting piece; when the sensing part detects the sheet pressing platform, the sheet supporting part is started to send the sheet-shaped sample to the focus of the element detection part, and the element detection part is started after preset delay to detect various elements in the sample; by integrating multifunctional modules, a one-stop processing assembly line from original ore to elemental analysis results is formed, so that the system can be deployed on a field test platform, and the efficiency of field exploration and on-site decision making is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of mineral element detection, and particularly relates to a multi-element detection device arranged in a field test platform. BACKGROUND

[0002] In the process of field mineral exploration, the instantaneity, accuracy and operation convenience of mineral element detection directly determine the exploration efficiency and decision quality; the conventional technical path seriously depends on a fixed laboratory environment. A typical process is as follows: firstly, representative mineral samples are collected in the field, then the samples are transported to a central laboratory equipped with large and precise instruments, and finally, the samples are sequentially broken, ground by independent devices such as a jaw crusher and a disc grinder, prepared into standard sample tablets by a manual or semi-automatic tablet press, and finally, element qualitative and quantitative analysis is performed by using large analysis equipment such as an X-ray fluorescence spectrometer (XRF);

[0003] However, from sample collection to final data acquisition, transportation, handover, multiple independent process treatment and other links are required, and the whole process takes several days or even weeks. Such serious delay cannot meet the instantaneity requirement of data in the field exploration site, and greatly affects the decision efficiency and deployment speed of subsequent work. Moreover, the functional devices relied on by each process are independent of each other, bulky, heavy, and have strict requirements on the working environment. This not only occupies a large amount of laboratory space, but also fundamentally determines that it cannot be effectively integrated and deployed in the field test platform or mobile exploration vehicle with limited space and variable conditions.

[0004] Meanwhile, in the whole sample pretreatment process, the transfer of materials, the start and stop of equipment, the control of pressure and the placement of sample tablets all highly depend on manual operation. This not only leads to heavy labor intensity, but also inevitably introduces operation errors, so that the preparation conditions of different batches or even the same batch of samples are difficult to keep consistent, and finally directly affect the repeatability and accuracy of detection data.

[0005] Therefore, the technical personnel in the field propose a multi-element detection device arranged in a field test platform, which aims to highly integrate and automatically operate all pretreatment and detection functions, and is particularly suitable for fast and accurate element detection in harsh field environments. SUMMARY

[0006] In order to solve the above technical problems, the application provides a multi-element detection device arranged in a field test platform, to solve the problems of long submission cycle, unsuitability for field environment and low automation integration degree proposed in the background art.

[0007] A multi-element detection device placed in a field testing platform includes a fixed box, the body of which is L-shaped;

[0008] The crushing component is fixedly installed in the upper part of the inner cavity of the fixed box by a sloping bottom plate. The crushing component is used to crush the mineral stone into smaller stones.

[0009] A grinding component is disposed below the slope base plate. The grinding component uses grinding elements to hammer and grind the broken smaller stones to produce powdered sand particles.

[0010] A conveying component, located inside the fixed box and below the grinding element, is used to laterally convey the produced powdered abrasive particles;

[0011] The detection component, located at the bottom of the inner cavity of the fixed box and at the end of the transmission component, includes a moving component, a pressing component, a supporting component, a sensing component, and an element detection component. The moving component receives the conveyed powdered sand particles via the pressing platform and moves them laterally. The pressing component presses the powdered sand particles placed on the moving component to form a sheet sample. The supporting component is mounted on the moving component and supports the sheet sample. When the pressing platform is detected, the sensing component activates the supporting component to the focal area of ​​the element detection component and activates the element detection component after a preset delay time. The element detection component is used to detect multiple elements in the sheet sample.

[0012] Preferably, the crushing assembly further includes a support plate fixedly disposed on the outside of the fixed box, a first driving member fixedly mounted on the support plate, a first toothed pulley and a second toothed pulley fixedly disposed at the output end of the first driving member, the first toothed pulley and the second toothed pulley being coaxially disposed; a driven pulley is installed at the rear end of the fixed box, a first toothed belt is disposed between the first toothed pulley and the driven pulley, an eccentric shaft is mounted on the middle of the driven pulley via a bearing, a movable jaw plate is mounted on the eccentric shaft, the movable jaw plate is disposed in the inner cavity of the fixed box, an elbow plate seat is movably mounted at the lower end of the movable jaw plate, the other side of the elbow plate seat is installed in the fixed box via a movable shaft, a stationary jaw plate is disposed opposite the movable jaw plate, the stationary jaw plate is fixedly disposed in the fixed box, a gap is provided between the movable jaw plate and the stationary jaw plate, and the gap gradually decreases from top to bottom; a sloped bottom plate is disposed below the movable jaw plate and the stationary jaw plate, and a discharge port is opened below the gap between them.

[0013] Preferably, the grinding assembly further includes a first feeding hopper disposed at the feeding port, a grinding chamber disposed below the first feeding hopper, side plates fixedly disposed on both sides of the inner wall of the grinding chamber, a third toothed pulley installed at the rear end of the fixed box and below the driven pulley, a second toothed belt disposed between the second toothed pulley and the third toothed pulley, the grinding element disposed in the grinding chamber, and multiple sets of arms fixedly installed below it in an arc shape, with a spacing between the arms.

[0014] Preferably, the grinding component includes a drive shaft mounted on the middle of the third toothed pulley via a bearing. Multiple sets of partitions are spaced apart on the drive shaft, and multiple sets of hammer shafts are fixedly arranged between the partitions at circumferential intervals. Hammer blocks are movably mounted on each hammer shaft.

[0015] Preferably, the transmission assembly includes a second hopper disposed below the arm bar, the lower end of the second hopper being provided with a transmission cavity, a second drive component being disposed at the rear end of the fixed box and below the third toothed pulley, a rotating shaft being fixedly installed at the output end of the second drive component, the rotating shaft being located inside the transmission cavity, a spiral conveying blade being fixedly installed on its surface, and the end of the transmission cavity being configured as a downward-facing arc.

[0016] Preferably, the movable component includes slide rails disposed on both sides of the bottom of the inner cavity of the fixed box. The slide rails are T-shaped, and a tablet pressing platform is slidably disposed on the slide rails. A fifth driving component is also installed on the outside of the fixed box. The output end of the fifth driving component is fixedly installed on a third hydraulic rod, and the other end of the third hydraulic rod is fixedly installed on the middle of the outer side of the tablet pressing platform.

[0017] The tablet holder is disposed at the lower middle part of the tablet compression platform. The tablet holder includes a groove formed at the upper middle part of the tablet compression platform. A bottom plate is disposed in the groove. A movable hole is formed through the middle of the bottom plate. A tray is fixedly installed at the lower middle part of the tablet compression platform and outside the bottom plate. A third driving component is placed in the tray. A first hydraulic shaft is fixedly installed at the output end of the third driving component. A tablet holder is fixedly installed at the upper end of the first hydraulic shaft. The first hydraulic shaft is formed through the movable hole. The tablet holder is placed on the bottom plate of the groove in the normal state.

[0018] Preferably, the tablet pressing component includes a fourth driving component fixedly mounted on a fixed box, a second hydraulic shaft fixedly mounted at the output end of the fourth driving component, a pressure plate fixedly mounted at the lower end of the second hydraulic shaft, and the pressure plate being positioned above the tablet support component.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. This invention integrates five major functional modules—crushing, grinding, conveying, tableting, and testing—in a compact manner, breaking through the traditional laboratory model that relies on multiple dispersed devices. It forms a one-stop processing line from raw ore to elemental analysis results, greatly reducing the size of the equipment and enabling its deployment on field testing platforms. It also shortens the testing process, which originally took several days, to be completed on-site within minutes, improving the efficiency of field exploration and on-site decision-making.

[0021] 2. This invention achieves fully automatic and precise timing control of movement, positioning, lifting, and delayed detection through an intelligent control system triggered by sensors. This not only completely avoids human error, but also ensures that each sample can be stably and accurately delivered to the detection focus through a precise lifting mechanism and delay mechanism, thereby significantly improving the repeatability and accuracy of the detection data.

[0022] 3. This invention uses a mobile tablet pressing platform and a built-in tablet support to allow the sample to be pressed and shaped at a fixed station, then moved with the platform, and then precisely lifted to the testing point by the hidden tablet support. This avoids the sample shifting during movement, solves the problem of accurate positioning in the field, greatly reduces the technical requirements and labor intensity of operators, and makes professional testing easy to complete in the field. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the rear end structure of the fixed box of the present invention;

[0025] Figure 3 This is a schematic diagram of the crushing component structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the internal structure of the grinding assembly of the present invention;

[0027] Figure 5 This is a schematic diagram of the grinding component structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the transmission component structure of the present invention;

[0029] Figure 7 This is a schematic diagram of the detection component structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the support structure of the present invention.

[0031] In the picture:

[0032] 100. Fixed box; 200. Crushing assembly; 201. Support plate; 202. First driving component; 203. First toothed pulley; 204. Second toothed pulley; 205. Driven pulley; 206. First toothed belt; 207. Eccentric shaft; 208. Moving jaw plate; 209. Toggle plate seat; 210. Movable shaft; 211. Stationary jaw plate; 212. Sloping bottom plate; 213. Discharge port; 300. Grinding assembly; 301. First discharge hopper; 302. Side plate; 303. Third toothed pulley; 304. Second toothed belt; 305. Grinding component; 305a. Drive shaft; 305b. Partition plate; 305c. Hammer shaft; 305d. Hammer block; 306. 400. Arm bar; 401. Conveying assembly; 402. Second feeding hopper; 403. Conveying chamber; 404. Second driving component; 405. Rotating shaft; 406. Screw conveyor blade; 500. Detection assembly; 501. Slide rail; 502. Tableting platform; 503. Tablet holder; 503a. Groove; 503b. Base plate; 503c. Movable hole; 503d. Tablet holder plate; 503e. First hydraulic shaft; 503f. Third driving component; 503g. Tray; 504. Fourth driving component; 505. Second hydraulic shaft; 506. Pressure plate; 507. Fifth driving component; 508. Third hydraulic rod; 509. Sensor; 510. Element detection component. Detailed Implementation

[0033] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0034] Example: This invention provides a multi-element detection device placed in a field testing platform, as shown in the attached figure. Figure 1 As shown, it includes a fixed box 100, the box body of which is L-shaped;

[0035] The crushing component 200 is fixedly installed in the upper part of the inner cavity of the fixed box 100 by the slope bottom plate 212. The crushing component 200 is used to crush mineral stones into smaller stones.

[0036] The grinding component 300 is located below the slope base plate 212. The grinding component 300 uses the grinding element 305 to hammer and grind the smaller stones after crushing them to produce powdered sand particles.

[0037] The conveying component 400 is located inside the fixed box 100 and below the grinding part 305, and is used to laterally convey the produced powdered abrasive particles;

[0038] The detection component 500, located at the bottom of the inner cavity of the fixed box 100 and at the end of the transmission component 400, includes a moving part, a pressing part, a supporting part 503, a sensing element 509, and an element detection component 510. The moving part is used to receive the powdered sand particles conveyed by the pressing platform 502 and move them laterally. The pressing part is used to press the powdered sand particles placed on the moving part into a sheet to obtain a sheet sample. The supporting part 503 is installed on the moving part and is used to support the sheet sample. The sensing element 509 is used to activate the supporting part 503 to the focal area of ​​the element detection component 510 when the pressing platform 502 is detected, and to activate the element detection component 510 after a preset delay time. The element detection component 510 is used to detect multiple elements in the sheet sample.

[0039] As attached Figure 2 and attached Figure 3 As shown, the crushing assembly 200 also includes a support plate 201 fixedly disposed on the outside of the fixed box 100. A first driving component 202 is fixedly installed on the support plate 201. The first driving component 202 includes, but is not limited to, a motor. A first toothed pulley 203 and a second toothed pulley 204 are fixedly disposed at the output end of the first driving component 202. The first toothed pulley 203 and the second toothed pulley 204 are coaxially disposed. A driven pulley 205 is installed at the rear end of the fixed box 100. A first toothed belt 206 is disposed between the first toothed pulley 203 and the driven pulley 205. An eccentric shaft 207 is mounted in the middle of the driven pulley 205 through a bearing. A movable jaw plate 208 is mounted on the spindle 207. The movable jaw plate 208 is located inside the fixed box 100. An elbow plate seat 209 is movably mounted on the lower end of the movable jaw plate 208. The other side of the elbow plate seat 209 is installed inside the fixed box 100 via a movable shaft 210. A stationary jaw plate 211 is arranged opposite to the movable jaw plate 208. The stationary jaw plate 211 is fixedly located inside the fixed box 100. A gap is provided between the movable jaw plate 208 and the stationary jaw plate 211, and the gap gradually decreases from top to bottom. A sloped bottom plate 503b212 is located below the movable jaw plate 208 and the stationary jaw plate 211, and a discharge port 213 is opened below the gap between them.

[0040] When a large mineral block is placed between the moving jaw plate 208 and the stationary jaw plate 211, the first driving component 202 drives the first toothed pulley 203 and the second toothed pulley 204 to rotate. The first toothed pulley 203 drives the driven pulley 205 and the eccentric shaft 207 to rotate through the first toothed belt 206, so that the moving jaw plate 208 reciprocates relative to the fixed stationary jaw plate 211, squeezing the large mineral block that enters between them. Through reciprocating squeezing, the large mineral block is crushed into small stones that meet the grinding requirements. The toggle plate seat 209 is used to limit the movement trajectory of the moving jaw plate 208, ensuring that it only swings along the crushing direction, avoiding deviation that could lead to uneven crushing or material jamming. The sloped bottom plate 212 is used to receive the crushed small stones, and its slope guides the material to slide downwards. The discharge port 213 is located directly below the distance between the moving jaw plate 208 and the stationary jaw plate 211, thereby preventing the crushed material from accumulating below the crushing chamber and ensuring that the small stones fall accurately into the grinding assembly 300.

[0041] As attached Figure 2 and attached Figure 4 As shown, the grinding assembly 300 also includes a first feeding hopper 301 disposed at the feeding port 213. A grinding chamber is disposed below the first feeding hopper 301. Side plates 302 are fixedly disposed on both sides of the inner wall of the grinding chamber. A third toothed pulley 303 is installed at the rear end of the fixed box 100 and below the driven pulley 205. A second toothed belt 304 is disposed between the second toothed pulley 204 and the third toothed pulley 303. The grinding part 305 is disposed in the grinding chamber. Multiple sets of arms 306 are fixedly installed below it in an arc shape. There is a gap between the arms 306.

[0042] As attached Figure 5 As shown, the grinding component 305 includes a transmission shaft 305a mounted on the middle of the third toothed pulley 303 via a bearing. Multiple sets of partitions 305b are spaced apart on the transmission shaft 305a. Multiple sets of hammer shafts 305c are fixedly arranged between the partitions 305b at circumferential intervals. Hammer blocks 305d are movably mounted on each of the hammer shafts 305c.

[0043] Small stones from the feed inlet 213 are received by the first feed hopper 301 and guided into the grinding chamber. The enclosed grinding space, with side plates 302 fixed to both sides of the inner wall of the grinding chamber, restricts the movement of materials within the chamber, preventing stones or powder from splashing out during grinding. This also ensures that the material is concentrated within the effective range of the grinding element 305, improving grinding efficiency. Simultaneously, the second toothed pulley 204, via the second toothed belt 304, drives the third toothed pulley 303, thereby rotating the central drive shaft 305a. The rotation of the drive shaft 305a drives the partition plate 305b and the hammer shaft 305c to rotate synchronously, providing rotational power for grinding and ensuring the overall rotational speed of the grinding element 305 remains stable. Partition plates 305b are spaced apart on the drive shaft 305a, separating multiple sets of hammer shafts 305c. This ensures that the hammer blocks 305d are evenly distributed on the drive shaft 305a, preventing uneven grinding caused by dense localized areas of hammer blocks 305d. The hammer shafts 305c are fixed circumferentially between the partition plates 305b, and the hammer blocks 305d are movably mounted, allowing the hammer blocks 305d to generate centrifugal force as they rotate, thus enhancing the hammering force. The hammer blocks 305d rotate with the hammer shafts 305c, hammering the small stones in the grinding chamber. Through centrifugal hammering, the small stones are ground into fine powdery abrasive particles, meeting the requirements for subsequent tableting. Multiple sets of arms 306 are fixed in an arc shape below the grinding part 305. Gaps are reserved between the arms 306 to receive the ground material and realize automatic screening. Qualified powdered sand particles fall through the gaps between the arms 306, while small, unground stones remain in the cavity for further grinding, ensuring that all materials entering the transmission component 400 are qualified powders.

[0044] As attached Figure 6 As shown, the transmission assembly 400 includes a second hopper 401 disposed below the arm 306. The lower end of the second hopper 401 is provided with a transmission cavity 402. A second drive component 403 is disposed at the rear end of the fixed box 100 and below the third toothed pulley 303. The second drive component 403 includes, but is not limited to, a motor. A rotating shaft 404 is fixedly installed at the output end of the second drive component 403. The rotating shaft 404 is located inside the transmission cavity 402, and a spiral conveying blade 405 is fixedly installed on its surface. The end of the transmission cavity 402 is configured as a downward arc.

[0045] The second hopper 401 is installed below the arm 306, receiving powdered sand particles passing through the gaps in the arm 306 and guiding them into the transmission chamber 402. By activating the second drive unit 403, the spiral conveying blades 405 rotate within the enclosed transmission chamber 402. Utilizing the friction between the spiral blades and the material, the powdered sand particles are conveyed and propelled laterally. Even with slightly high powder moisture content or bumpy outdoor conditions, the pushing force of the spiral blades can stably move the powdered sand particles towards the detection component 500, preventing them from accumulating. The end of the transmission chamber 402 is curved downwards to guide the powder falling from the end of the conveying process.

[0046] As attachedFigure 7 and attached Figure 8 As shown, the moving component includes slide rails 501 disposed on both sides of the bottom of the inner cavity of the fixed box 100. The slide rails 501 are T-shaped, and a tablet pressing platform 502 is slidably disposed on the slide rails 501. A fifth driving component 507 is also installed on the outside of the fixed box 100. The fifth driving component 507 includes, but is not limited to, a hydraulic cylinder. The output end of the fifth driving component 507 is fixedly installed on a third hydraulic rod 508, and the other end of the third hydraulic rod 508 is fixedly installed on the outer middle of the tablet pressing platform 502. By extending and retracting the third hydraulic rod 508, the platform is smoothly dragged along the slide rails 501 to avoid the tablet pressing platform 502 shaking and causing the sample to shift.

[0047] A tablet holder 503 is disposed at the lower middle of the tablet compression platform 502. The tablet holder 503 includes a groove 503a formed at the upper middle of the tablet compression platform 502. A base plate 503b is disposed in the groove 503a. An movable hole 503c is formed through the middle of the base plate 503b. A tray 503g is fixedly installed at the lower middle of the tablet compression platform 502 and outside the base plate 503b. A third driving component 503f is placed in the tray 503g. The third driving component 503f includes, but is not limited to, a hydraulic cylinder. A first hydraulic shaft 503e is fixedly installed at the output end of the third driving component 503f. A tablet holder 503d is fixedly installed at the upper end of the first hydraulic shaft 503e. The first hydraulic shaft 503e is formed through the movable hole 503c. The tablet holder 503d is placed on the base plate 503b of the groove 503a in normal operation. The groove 503a is used to accommodate the powder conveyed by the transmission component 400. By positioning the powder, it ensures that the powder is concentrated in the center of the platform, facilitating precise extrusion by the pressure plate 506. The base plate 503b is set in the groove 503a, with a movable hole 503c in the center. The base plate 503b supports the tray plate 503d and provides a lifting channel for the first hydraulic shaft 503e. The tray 503g fixes the third drive component 503f to the platform, ensuring that the drive component does not wobble when moving with the platform. The tray plate 503d is normally placed on the base plate 503b in the groove 503a. When rising, it lifts the sheet-like sample in the groove 503a, thereby accurately delivering the sheet-like sample to the focal area of ​​the element detection component 510, ensuring that the detection component can obtain a clear and accurate detection signal.

[0048] The tablet compression unit includes a fourth drive component 504 fixedly mounted on the fixed housing 100. The fourth drive component 504 includes, but is not limited to, a hydraulic cylinder. A second hydraulic shaft 505 is fixedly mounted on the output end of the fourth drive component 504, and a pressure plate 506 is fixedly mounted on the lower end of the second hydraulic shaft 505. The pressure plate 506 is positioned above the tablet support component 503. The fourth drive component 504 outputs downward telescopic force to compact the powdered sand particles with the pressure plate 506, while controlling the downward stroke of the pressure plate 506 to avoid excessive pressure damaging the platform or insufficient pressure causing the sample to become loose. The pressure plate 506 moves downward with the second hydraulic shaft 505, squeezing the powder on the tablet compression platform 502 and compressing the loose powder into a uniformly dense and regularly shaped tablet sample. The tablet structure is more conducive to X-ray penetration during elemental detection, reducing the deviation of detection data.

[0049] The powdered sand particles are laterally conveyed to the tableting platform 502 by the transmission component 400. At this time, the fourth drive component 504 is activated, which drives the pressure plate 506 on the second hydraulic shaft 505 to press down, so that the powdered sand particles are pressed into the groove 503a by the pressure plate 506 to form a sheet sample. After the sheet sample is made, the fifth drive component 507 is activated, which drives the third hydraulic rod 508 to drag the tableting platform 502 along the slide rail 501, so that the tableting platform 502 moves to the element detection area. The sensor 509 is a photoelectric sensor. When the sensor 509 detects that the tablet pressing platform 502 has moved to the element detection area, it shuts down the fifth drive 507 and activates the third drive 503f in the tablet support 503 that moves with the tablet pressing platform 502. This drives the first hydraulic rod to extend out of the movable hole 503c and raises the tablet support plate 503d, thereby lifting the sheet sample in the groove 503a to the focal area of ​​the element detection device 510. Furthermore, when the sensor 509 detects the tablet pressing platform 502, it also synchronously delays the activation of the element detection device 510. After a preset delay, it performs multi-element detection on the sheet sample lifted to the focal area to identify the internal element composition. The element detection device 510 includes, but is not limited to, an ore element analyzer. It emits a detection beam to the sheet sample and detects the characteristic X-rays generated after the sample is excited, thereby analyzing the types and contents of elements in the sample. The preset delay time ensures that the tray 503d has enough time to fully rise and stabilize the sample in the focal area before the detection begins, avoiding detection failure or data error caused by the sample not being in place or shaking.

[0050] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible without substantially departing from the novel teachings and advantages of the subject matter described in this application. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the invention is not limited to the particular embodiments but extends to a variety of modifications that still fall within the scope of the appended claims.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A multi-element detection device placed in a field testing platform, characterized in that: Includes a fixed box (100), the box body of which is L-shaped; The crushing component (200) is fixedly installed on the upper part of the inner cavity of the fixed box (100) by a sloped bottom plate (212). The crushing component (200) is used to crush the mineral stone into smaller stones. The grinding component (300) is located below the slope base plate (212). The grinding component (300) uses the grinding element (305) to hammer and grind the smaller stones after crushing to produce powdered sand particles. A conveying assembly (400), located inside the fixed box (100) and below the grinding element (305), is used for lateral conveying of the produced powdered abrasive particles; The detection component (500), located at the bottom of the inner cavity of the fixed box (100) and at the end of the transmission component (400), includes a moving part, a pressing part, a supporting part (503), a sensing part (509), and an element detection part (510). The moving part is used to receive the powdered sand particles transported by the pressing platform (502) and move them laterally. The pressing part is used to press the powdered sand particles placed on the moving part into a sheet to obtain a sheet sample. The supporting part (503) is installed on the moving part and is used to support the sheet sample. The sensing part (509) is used to activate the supporting part (503) to the focal area of ​​the element detection part (510) when the pressing platform (502) is detected, and to activate the element detection part (510) after a preset delay time. The element detection part (510) is used to detect multiple elements in the sheet sample.

2. The multi-element detection device placed in a field testing platform as described in claim 1, characterized in that: The crushing assembly (200) further includes a support plate (201) fixedly disposed on the outside of the fixed box (100). A first driving member (202) is fixedly installed on the support plate (201). A first toothed pulley (203) and a second toothed pulley (204) are fixedly disposed at the output end of the first driving member (202). The first toothed pulley (203) and the second toothed pulley (204) are coaxially disposed. A driven pulley (205) is installed at the rear end of the fixed box (100). A first toothed belt (206) is disposed between the first toothed pulley (203) and the driven pulley (205). An eccentric shaft (207) is mounted on the middle of the driven pulley (205) through a bearing. A moving part is mounted on the eccentric shaft (207). Jaw plate (208), the movable jaw plate (208) is disposed in the inner cavity of the fixed box (100), the lower end of the movable jaw plate (208) is movably mounted with an elbow plate seat (209), the other side of the elbow plate seat (209) is installed in the fixed box (100) through a movable shaft (210), the movable jaw plate (208) is oppositely disposed with a stationary jaw plate (211), the stationary jaw plate (211) is fixedly disposed in the fixed box (100), a gap is provided between the movable jaw plate (208) and the stationary jaw plate (211), and the gap gradually decreases from top to bottom; the slope bottom plate (212) is disposed below the movable jaw plate (208) and the stationary jaw plate (211), and a discharge port (213) is opened below the gap between them.

3. The multi-element detection device placed in a field testing platform as described in claim 2, characterized in that: The grinding assembly (300) further includes a first feeding hopper (301) disposed at the feeding port (213). A grinding chamber is disposed below the first feeding hopper (301), and side plates (302) are fixedly disposed on both sides of the inner wall of the grinding chamber. A third toothed pulley (303) is installed at the rear end of the fixed box (100) and below the driven pulley (205). A second toothed belt (304) is disposed between the second toothed pulley (204) and the third toothed pulley (303). The grinding component (305) is disposed in the grinding chamber, and multiple sets of arm bars (306) are fixedly installed below it in an arc shape. A gap is provided between the arm bars (306).

4. The multi-element detection device placed in a field testing platform as described in claim 3, characterized in that: The grinding component (305) includes a drive shaft (305a) mounted on the middle of the third toothed pulley (303) via a bearing. Multiple sets of partitions (305b) are spaced apart on the drive shaft (305a). Multiple sets of hammer shafts (305c) are fixedly arranged between the partitions (305b) at circumferential intervals. Hammer blocks (305d) are movably mounted on each hammer shaft (305c).

5. The multi-element detection device placed in a field testing platform as described in claim 3, characterized in that: The transmission assembly (400) includes a second hopper (401) disposed below the arm (306), and a transmission cavity (402) disposed at the lower end of the second hopper (401). A second drive unit (403) is disposed at the rear end of the fixed box (100) and below the third toothed pulley (303). A rotating shaft (404) is fixedly installed at the output end of the second drive unit (403). The rotating shaft (404) is located inside the transmission cavity (402), and a spiral conveying blade (405) is fixedly installed on its surface. The end of the transmission cavity (402) is configured as a downward arc.

6. The multi-element detection device placed in a field testing platform as described in claim 1, characterized in that: The movable component includes slide rails (501) disposed on both sides of the bottom of the inner cavity of the fixed box (100). The slide rails (501) are T-shaped. A tablet pressing platform (502) is slidably disposed on the slide rails (501). A fifth driving component (507) is also installed on the outside of the fixed box (100). The output end of the fifth driving component (507) is fixedly installed on the third hydraulic rod (508). The other end of the third hydraulic rod (508) is fixedly installed on the middle of the outer side of the tablet pressing platform (502). The tablet holder (503) is disposed at the lower middle part of the tablet compression platform (502). The tablet holder (503) includes a groove (503a) formed at the upper middle part of the tablet compression platform (502). A base plate (503b) is disposed in the groove (503a). A movable hole (503c) is formed through the middle part of the base plate (503b). A tray (503g) is fixedly installed at the lower middle part of the tablet compression platform (502) and outside the base plate (503b). The tray (503g) contains a third driving component (503f), and the output end of the third driving component (503f) is fixedly mounted with a first hydraulic shaft (503e). The upper end of the first hydraulic shaft (503e) is fixedly mounted with a support plate (503d). The first hydraulic shaft (503e) is disposed through the movable hole (503c). When in normal condition, the support plate (503d) is placed on the bottom plate (503b) in the groove (503a).

7. The multi-element detection device placed in a field testing platform as described in claim 6, characterized in that: The tablet pressing component includes a fourth driving component (504) fixedly mounted on a fixed box (100). A second hydraulic shaft (505) is fixedly mounted on the output end of the fourth driving component (504). A pressure plate (506) is fixedly mounted on the lower end of the second hydraulic shaft (505). The pressure plate (506) is positioned above the tablet support component (503).

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