Solid preparation system for mineral analysis

Abstract

The utility model provides a solid material preparation system for mineral analysis, which comprises a pressing assembly, and the pressing assembly comprises a pressing support seat, a clamping driving mechanism, a pressing driving mechanism, a residual powder scraping mechanism and a residual material removing piece; the clamping driving mechanism is arranged on the pressing supporting seat, and a sample ring jig is arranged at the power output end of the clamping driving mechanism; the pressing driving mechanism is arranged above the clamping driving mechanism, and a pressing head is arranged at the power output end of the pressing driving mechanism; the residual powder scraping mechanism is arranged on the pressing supporting base, and the residual material removing piece is arranged on the pressing supporting base. The material blocking mechanism is arranged on the drying assembly, the situation that the number of sample cakes is not enough due to material leakage of the drying cylinder can be prevented, meanwhile, the drying time of materials in the drying cylinder can be controlled, and therefore the temperature and the drying duration are controlled, and the drying requirements under the influences of different ore varieties, different ore particle sizes and the like are met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mineral analysis detection technical field, concretely relates to a solid preparation system for mineral analysis. BACKGROUND

[0002] Grade refers to the content of useful component or useful mineral in ore (or mineral products), and in the mineral processing industry, the grade of production elements in the ore pulp needs to be understood in time to guide production. At present, the conventional grade detection method usually needs to compress the ore pulp into a cake for detection to improve the accuracy of detection. In the existing sample preparation device, the ore pulp usually forms a sample cake for detection after filtering, drying, crushing and pressing processes. The related devices completing the above processes are usually arranged from top to bottom in sequence to transfer the material to the next process equipment through gravity. However, for low-density ore powder, the self-gravity is insufficient during the feeding process, which easily causes material accumulation and blocking in the feeding channel, seriously affecting the normal operation of the device. SUMMARY

[0003] Based on the problems existing in the prior art, the utility model provides a solid preparation system for mineral analysis, aiming to solve the technical problem that in the existing sample preparation device, low-density ore powder is prone to accumulation during the feeding process due to insufficient self-gravity, which seriously affects the normal operation of the device.

[0004] In order to achieve the above purpose, the utility model provides a solid preparation system for mineral analysis, which comprises a pressing assembly for pressing ore powder into a sample cake for detection.

[0005] Further, the pressing assembly comprises a pressing support seat, a clamping driving mechanism, a pressing driving mechanism, a residual powder scraping mechanism and a residual material removing piece. The clamping driving mechanism is arranged on the pressing support seat, and a sample ring jig is arranged on the power output end of the clamping driving mechanism. The pressing driving mechanism is arranged above the clamping driving mechanism, and a pressing head is arranged on the power output end of the pressing driving mechanism. The residual powder scraping mechanism is arranged on the pressing support seat, and the residual material removing piece is arranged on the pressing support seat.

[0006] Further, the sample ring jig is used for clamping the sample ring capable of containing the ore powder. Under the driving action of the clamping driving mechanism, the sample ring jig and the sample ring perform lifting movement, so that the sample ring can move to a feeding position to receive the ore powder falling from the crushing assembly. A sample ring detection switch for detecting the sample ring is arranged on the sample ring jig.

[0007] Preferably, the pressing assembly is used for moving towards the sample ring under the driving action of the pressing driving mechanism to press the ore powder in the sample ring to obtain the sample cake.

[0008] Additionally, the excess powder scraping mechanism is used to scrape the excess ore powder on the sample ring, so that the sample ring has the ore powder which is equal to the inner diameter of the sample ring and equal to the height of the sample ring. The excess material removing member is provided with a plurality of air holes, and the excess material removing member sprays the sample cake through the plurality of air holes to blow away the excess ore powder.

[0009] Preferably, the pressing driving mechanism comprises a housing, a pressing screw rod, a pressing sliding block, a pressing rod and a pressing power assembly, the housing is arranged on the top of the pressing support seat, the pressing screw rod and the pressing sliding block are threadedly connected, the pressing screw rod and the pressing sliding block are arranged in the housing, one end of the pressing rod is connected with the pressing sliding block in the housing, the other end of the pressing rod extends into the pressing support seat and is connected with the pressing head, and the pressing power assembly is used to drive the pressing screw rod to rotate.

[0010] Further, the clamping driving mechanism comprises a clamping upper seat, a clamping lower seat, a lifting rod assembly, a connecting rod self-locking mechanism and a clamping driving member, the clamping upper seat is arranged on the pressing support seat and below the pressing head, the clamping lower seat is arranged on the pressing support seat and below the clamping upper seat, the lifting rod assembly is arranged in the clamping upper seat and can move in the vertical direction, and the connecting rod self-locking mechanism is arranged between the clamping upper seat and the clamping lower seat.

[0011] Preferably, one end of the lifting rod assembly is connected with the sample ring jig above the clamping upper seat, the other end of the lifting rod assembly is hingedly connected with one end of the connecting rod self-locking mechanism below the clamping upper seat, the clamping driving member has a telescopic end, the telescopic end of the clamping driving member is hingedly connected with the other end of the connecting rod self-locking mechanism, the clamping driving member drives the connecting rod self-locking mechanism to drive the lifting rod assembly to ascend and descend through the telescopic end, when the sample ring reaches the feeding position, the connecting rod self-locking mechanism is in the self-locking state, and the lifting rod assembly stops ascending and descending.

[0012] More preferably, the connecting rod self-locking mechanism comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, the first connecting rod is a T-shaped rod, a first connecting end of the first connecting rod is hingedly connected with the telescopic end of the clamping driving member, a second connecting end of the first connecting rod is hingedly connected with the clamping lower seat, a third connecting end of the first connecting rod is hingedly connected with one end of the second connecting rod, the other end of the second connecting rod, one end of the third connecting rod and one end of the fourth connecting rod are hingedly connected, the other end of the third connecting rod is hingedly connected with the clamping lower seat, and the other end of the fourth connecting rod is hingedly connected with the lifting rod assembly.

[0013] Compared with the prior art, the solid material preparation system for mineral analysis provided by the utility model filters the liquid in the ore pulp through the filtering assembly to form ore-containing filter cake, dries the ore-containing filter cake through the drying assembly to obtain dried filter cake, crushes the dried filter cake through the crushing assembly to obtain ore powder, and presses the ore powder into sample cake for detection through the pressing assembly, wherein the crushing assembly conveys the dried filter cake to the crushing disc for crushing treatment through the feeding mechanism, and does not need to rely on gravity, so that the conveying capacity for low-density ore powder can be ensured, and the situation that low-density ore powder cannot rely on gravity to fall into the crushing disc by itself and causes the material accumulation and blocking in the feeding channel, so that the normal operation of the device is effectively ensured. BRIEF DESCRIPTION OF DRAWINGS

[0014] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The detailed description is made with reference to the accompanying drawings.

[0015] Figure 1 It is a structural schematic view of the solid material preparation system for mineral analysis according to the utility model;

[0016] Figure 2 It is a sectional view of the filtering assembly according to the utility model;

[0017] Figure 3 It is a right view of the filtering assembly according to the utility model;

[0018] Figure 4 It is a left view of the filtering assembly according to the utility model;

[0019] Figure 5 It is a top view of the filtering assembly according to the utility model;

[0020] Figure 6 It is a sectional view of the drying assembly according to the utility model;

[0021] Figure 7 It is a front view of the drying assembly according to the utility model;

[0022] Figure 8 It is a sectional view of the crushing assembly according to the utility model;

[0023] Figure 9 It is a front view of the crushing assembly according to the utility model;

[0024] Figure 10 It is a top view of the crushing assembly according to the utility model;

[0025] Figure 11The utility model discloses a pressing assembly's front view according to the utility model;

[0026] Figure 12 The utility model discloses a pressing assembly's side view according to the utility model;

[0027] Figure 13 The utility model discloses a pressing assembly's rear view according to the utility model;

[0028] Figure 14 The utility model discloses a pressing assembly's plan view according to the utility model;

[0029] Figure 15 The utility model discloses a pressing assembly's side view according to the utility model;

[0030] Figure 16 For Figure 15 The enlarged view of A in the middle;

[0031] Figure 17 The utility model discloses a pressing drive mechanism's structure schematic view according to the utility model;

[0032] Figure 18 The utility model discloses a clamping drive mechanism's lifting state schematic view according to the utility model;

[0033] Figure 19 The utility model discloses a clamping drive mechanism's retraction state schematic view according to the utility model.

[0034] Mark explanation:

[0035] 1, filter assembly;

[0036] 11, filter base; 111, filter trough;

[0037] 12, filter container; 121, liquid inlet; 122, liquid level sensor; 123, pressure switch; 124, pulp inlet connector; 1241, air inlet hole; 125, three-way valve; 126, air control box;

[0038] 13, filter plate; 14, knock-off assembly; 141, knock-off mechanism; 142, knock-off mechanism dust cover; 15, locking assembly; 151, locking mechanism; 152, locking dust cover; 16, filter plate drive mechanism; 17, filter plate pin seat; 18, connecting lug; 19, filter drainage groove;

[0039] 2, drying assembly;

[0040] 21, drying support; 211, bottom plate; 212, side support plate; 213, support bearing plate;

[0041] 22, drying cylinder;

[0042] 23. Drying mechanism; 231. Coil sleeve; 232. Heating coil; 233. Coil support plate;

[0043] 24. Initial crushing mechanism;

[0044] 241. Feed trough;

[0045] 242. Initial crushing body; 2421. Initial crushing shaft; 2422. Lever; 2423. Initial crushing bearing seat;

[0046] 243. Conveying component; 2431. Feed conveyor shaft; 2432. Screw conveyor blades;

[0047] 244. Dividing wheel; 245. Primary transmission component; 246. Secondary transmission component;

[0048] 25. Cylinder drive mechanism; 251. Power motor; 252. Power wheel; 253. Transmission belt; 254. Motor support; 255. Motor tensioning plate;

[0049] 26. Material blocking mechanism; 261. Material blocking cover; 262. Material blocking drive component; 263. Material blocking plate;

[0050] 3. Crushing components;

[0051] 31. Broken shell;

[0052] 32. Crushing disc; 321. Crushing blade;

[0053] 33. Crushing drive mechanism; 331. Crushing motor; 332. Crushing motor base; 333. Coupling; 334. Crushing motor bearing; 335. Coupling cover;

[0054] 34. Feeding mechanism; 341. Screw conveyor motor; 342. Conveyor motor bearing; 343. Screw bearing housing; 344. Screw motor protective cover; 345. Conveyor shaft; 346. Screw blade;

[0055] 4. Suppression component;

[0056] 41. Pressing support base; 411. Top plate; 412. Side plate; 413. Back plate; 414. Bottom plate; 415. Support; 416. Front sealing plate; 417. Middle ring positioning plate; 418. Sample ring positioning hole;

[0057] 42. Clamping drive mechanism; 421. Upper clamping seat; 422. Lower clamping seat; 423. Clamping drive component; 424. First connecting rod; 425. Second connecting rod; 426. Third connecting rod; 427. Fourth connecting rod; 428. Lifting rod; 429. Positive and negative lead screws; 4210. Nut; 4211. Guide sleeve;

[0058] 43. Pressing drive mechanism; 431. Housing; 432. Pressing screw; 433. Pressing slider; 434. Pressing rod; 435. Pressing motor; 436. Pressing wheel; 437. Input wheel; 438. Synchronous belt; 439. Motor connecting plate; 4310. Connecting plate seat; 4311. Guide sleeve; 4312. Bearing seat; 4313. Guide block;

[0059] 44. Sample ring fixture;

[0060] 45. Pressure head;

[0061] 46. ​​Excess powder scraping mechanism; 461. Scraping pusher; 462. Scraper; 463. Pusher plate; 464. Guide shaft;

[0062] 47. Scrap material removal parts; 471. Long slotted plate; 472. Perforated plate;

[0063] 48. Sample ring detection switch;

[0064] 49. Residual powder material channel;

[0065] 5. First fixed base; 6. Second fixed base; 7. Sample ring; 8. Liquid collection tank; 9. Drain pipe. Detailed Implementation

[0066] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, embodiments and features of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0067] This invention provides a solid sample preparation system for mineral analysis, comprising a pressing assembly for pressing mineral powder into a sample cake for testing. The pressing assembly includes a pressing support, a clamping drive mechanism, a pressing drive mechanism, a residual powder scraping mechanism, and a residual material removal component. The clamping drive mechanism is mounted on the pressing support, and a sample ring fixture is provided on its power output end. The pressing drive mechanism is positioned above the clamping drive mechanism, and a pressure head is provided on its power output end. The residual powder scraping mechanism and the residual material removal component are both mounted on the pressing support.

[0068] Furthermore, the sample ring fixture is used to secure the sample ring capable of holding the mineral powder. Under the driving action of the clamping drive mechanism, the sample ring fixture and the sample ring move up and down, so that the sample ring can move to the feeding position to receive the mineral powder falling from the crushing component. The sample ring fixture is provided with a sample ring detection switch for detecting the sample ring. Preferably, the pressing component is used to move towards the sample ring under the driving action of the pressing drive mechanism to press the mineral powder in the sample ring to obtain the sample cake. In addition, the excess powder scraping mechanism is used to scrape off the excess mineral powder on the sample ring, so that the sample ring contains mineral powder with the same inner diameter and the same height as the sample ring. The excess material removal component is provided with multiple air holes, and the excess material removal component blows onto the sample cake through the multiple air holes to disperse the excess mineral powder.

[0069] In a preferred embodiment, the pressing drive mechanism includes a housing, a pressing screw, a pressing slider, a pressing rod, and a pressing power assembly. The housing is disposed on the top of the pressing support base. The pressing screw and the pressing slider are threadedly connected and are located inside the housing. One end of the pressing rod is located inside the housing and connected to the pressing slider. The other end of the pressing rod extends into the pressing support base and is connected to the pressing head. The pressing power assembly is used to drive the pressing screw to rotate. Further, the clamping drive mechanism includes an upper clamping seat, a lower clamping seat, a lifting rod assembly, a connecting rod self-locking mechanism, and a clamping drive component. The upper clamping seat is disposed on the pressing support base and located below the pressing head. The lower clamping seat is disposed on the pressing support base and located below the upper clamping seat. The lifting rod assembly passes through the upper clamping seat and is movable in the vertical direction. The connecting rod self-locking mechanism is disposed between the upper clamping seat and the lower clamping seat.

[0070] In another embodiment, one end of the lifting rod assembly is located above the clamping upper seat and connected to the sample ring fixture, and the other end of the lifting rod assembly is located below the clamping upper seat and hinged to one end of the connecting rod self-locking mechanism; the clamping drive has a telescopic end, and the telescopic end of the clamping drive is hinged to the other end of the connecting rod self-locking mechanism. The clamping drive drives the connecting rod self-locking mechanism through the telescopic end to drive the lifting rod assembly to rise and fall. When the sample ring reaches the loading position, the connecting rod self-locking mechanism is in a self-locking state, and the lifting rod assembly stops rising and falling.

[0071] In another embodiment, the linkage self-locking mechanism includes a first link, a second link, a third link, and a fourth link. The first link is a T-shaped rod. The first connecting end of the first link is hinged to the telescopic end of the clamping drive member. The second connecting end of the first link is hinged to the clamping lower seat. The third connecting end of the first link is hinged to one end of the second link. The other end of the second link, one end of the third link, and one end of the fourth link are hinged together. The other end of the third link is hinged to the clamping lower seat, and the other end of the fourth link is hinged to the lifting rod assembly.

[0072] In another embodiment, this embodiment can be combined with the above embodiment. In this embodiment, the solid preparation system for mineral analysis includes a filtration component, a drying component, a crushing component, and a pressing component. The filtration component is used to filter out liquid from the slurry to form mineral-bearing filter blocks. The drying component is used to dry the mineral-bearing filter blocks to obtain dried filter blocks. The crushing component is used to crush the dried filter blocks to obtain mineral powder. The pressing component is used to press the mineral powder into sample cakes for testing. The crushing component includes a crushing shell, a crushing disc, a crushing drive mechanism, and a feeding mechanism. The feeding mechanism is used to convey the dried filter blocks to the crushing disc. The crushing disc is rotatably disposed inside the crushing shell to crush the dried filter blocks conveyed by the feeding mechanism to form mineral powder. The crushing drive mechanism is used to drive the crushing disc to rotate. The feeding mechanism includes a screw feeder and a feeding drive assembly. The crushing shell is provided with an inlet and an outlet at intervals along its length. The screw feeder and the crushing disc are arranged inside the crushing shell. The screw feeder is located below the inlet of the crushing shell, and the crushing disc is located above the outlet of the crushing shell. The feeding drive assembly can drive the screw feeder to rotate so as to transport the dried filter blocks that enter through the inlet of the crushing shell to the crushing disc.

[0073] The screw feeder includes a conveying shaft and helical blades mounted on the conveying shaft, with the helical blades arranged axially along the conveying shaft. Multiple crushing blades are located on the side of the crushing disc near the screw feeder, each located above the discharge port of the crushing housing. The crushing drive mechanism includes a crushing motor, a crushing motor base, a coupling, crushing motor bearings, and a coupling cover. The crushing motor is mounted outside the crushing housing via the crushing motor base. The output shaft of the crushing motor is connected to the coupling, which connects to the crushing disc via the crushing motor bearings. The coupling is covered by a coupling cover. The filtration assembly includes a filter base, a filter container, a pneumatic control component, a metering device, and a filter plate. The filter container is mounted on the filter base, with an inlet and an outlet at its upper and lower ends, respectively. The inlet of the filter container is connected to the metering device, which controls the slurry injection rate into the filter container. The pneumatic control component is connected to the filter container and controls the pressure inside the filter container. The filter plate has filter holes for liquid outflow and is movably positioned below the outlet of the filter container, allowing the filter plate to open or close the outlet of the filter container.

[0074] The metering device includes a metering cylinder and a level sensor. The metering cylinder is connected to the inlet of the filter container and is used to hold a preset injection volume of slurry. The level sensor is installed on the filter container and is used to detect the slurry level inside the filter container. The pneumatic control assembly includes an air compressor and an air control box. The air compressor is connected to both the air control box and the filter container. The filter assembly also includes a rejection assembly and a locking assembly. The rejection assembly includes a rejection mechanism and a dust cover for covering the rejection mechanism. The rejection mechanism is installed on the filter base and located on one side of the filter plate. It is used to reject the ore-containing filter blocks on the filter plate and allow them to fall into the drying assembly. The locking assembly includes a locking mechanism and a locking dust cover for covering the locking mechanism. The locking mechanism is installed on the filter base. When the filter plate is closed, the locking assembly locks the filter plate onto the filter base.

[0075] Optionally, the drying assembly includes a drying support, a drying cylinder, a drying mechanism, a primary crushing mechanism, a cylinder drive mechanism, and a baffle mechanism. The drying cylinder is rotatably mounted on the drying support, and the drying cylinder is equipped with a drying mechanism for heating and drying the minerals inside the drying cylinder. The cylinder drive mechanism is used to drive the drying cylinder to rotate. The drying cylinder has an inlet and a outlet. The primary crushing mechanism is located at the inlet of the drying cylinder and is used to perform primary crushing on the mineral-containing filter blocks and feed the crushed mineral-containing filter blocks into the drying cylinder. The baffle mechanism is located at the outlet of the drying cylinder and is used to block or release the dried filter blocks inside the drying cylinder. The primary crushing mechanism includes a feed trough, a primary crushing body, a conveying component, and a dividing wheel. The feed trough is located at the feed inlet of the drying cylinder, and the primary crushing body is located at the feed inlet of the feed trough. The primary crushing body and the drying cylinder are connected by a linkage assembly, which includes a primary transmission component and a secondary transmission component. The primary transmission component is located on the drying cylinder, and the secondary transmission component is connected to the power input end of the primary crushing body. The rotation of the drying cylinder drives the primary transmission component to rotate, which in turn drives the secondary transmission component to rotate, and the secondary transmission component drives the primary crushing body to rotate. The primary transmission component is a large gear, and the secondary transmission component is a small gear, with the large gear and small gear meshing with each other. The conveyor is located inside the feed trough and below the primary crushing body. It is also connected to the drying cylinder and rotates synchronously with it to transport the material falling from the primary crushing body from the feed inlet of the drying cylinder into the drying cylinder. A dividing wheel is located at the feed inlet of the drying cylinder to divide the inlet into sections. The cylinder drive mechanism includes a power motor, a drive wheel, and a transmission belt. The power motor is mounted on the drying support via a motor bracket, and the drive wheel is mounted on the output shaft of the power motor. The drive wheel is connected to the drying cylinder via a transmission belt. Alternatively, the primary and secondary transmissions can be gear drives, belt drives, sprocket drives, or friction wheel drives.

[0076] The baffle mechanism includes a baffle cover, a baffle drive, and a baffle plate. The baffle cover is located outside the drying cylinder and at the discharge port of the drying cylinder. The baffle drive is located on the baffle cover and is driven to connect with the baffle plate so that the baffle plate can reciprocate between the baffle cover and the drying cylinder.

[0077] The present invention will be further described and explained in detail below with reference to the accompanying drawings.

[0078] See Figure 1 , Figures 8 to 10As shown, this utility model provides a preferred structure for a solid mineral analysis preparation system. The device includes a filtration assembly 1, a drying assembly 2, a crushing assembly 3, and a pressing assembly 4. The filtration assembly 1 filters out liquid from the slurry to form mineral-bearing filter blocks. The drying assembly 2 dries the mineral-bearing filter blocks to obtain dried filter blocks. The crushing assembly 3 crushes the dried filter blocks to obtain mineral powder. The pressing assembly 4 presses the mineral powder into sample cakes for testing. The crushing assembly 3 includes a crushing shell 31, a crushing disc 32, a crushing drive mechanism 33, and a feeding mechanism 34. The feeding mechanism 34 conveys the dried filter blocks to the crushing disc 32, which is rotatably disposed inside the crushing shell 31 to crush the dried filter blocks conveyed by the feeding mechanism 34, thereby crushing the dried filter blocks to form mineral powder. The crushing drive mechanism 33 drives the crushing disc 32 to rotate.

[0079] Specifically, the filter assembly 1, drying assembly 2, and pressing assembly 4 are arranged from top to bottom according to their spatial height (relative to...). Figure 1 (As shown in the diagram) arranged sequentially. The filter assembly 1 is located at the top and can be fixed to the first fixed base 5. The inlet of the filter assembly 1 is located at the top to input the slurry, allowing the slurry to flow downwards and pass through the filter assembly 1 for filtration. This removes the liquid from the slurry, resulting in a slurry with a high initial moisture content and a layered cake state. This allows the solid minerals in the slurry to form mineral-containing filter blocks, thus obtaining mineral-containing filter blocks. The pressing assembly 4 is located at the bottom and can be fixed to the second fixed base 6. The filter assembly 1 and the pressing assembly 4 have a height difference. The drying assembly 2 and the crushing assembly 3 are arranged between the filter assembly 1 and the pressing assembly 4. Both the drying assembly 2 and the crushing assembly 3 can be fixed to the pressing assembly 4. Furthermore, the feed end of the drying assembly 2 can extend into the interior of the filter assembly 1 to receive the mineral-containing filter blocks obtained from the filter assembly 1. The drying assembly 2 then dries the mineral-containing filter blocks to reduce their moisture content, forming dried filter blocks. The crushing component 3 is positioned below the drying component 2. The inlet of the crushing component 3 is connected to the outlet of the drying component 2, allowing the crushing component 3 to crush the dried filter blocks and obtain mineral powder, achieving a uniformly pulverized state. The pressing component 4 is positioned below the crushing component 3, and may be equipped with a sample ring 7. This allows the mineral powder discharged from the outlet of the crushing component 3 to fall into the sample ring 7, where the pressing component 4 presses the mineral powder to obtain a sample cake. The elemental grade of the sample cake can then be detected using existing conventional detection sensors in a non-contact, indirect manner to obtain the elemental grade of the slurry. Figure 1As shown, the crushing shell 31 is located between the drying assembly 2 and the pressing assembly 4, and can be fixed to the top of the pressing assembly 4 by bolts. The crushing disc 32 and the feeding mechanism 34 are disposed inside the crushing shell 31, with the feeding mechanism 34 located on one side of the crushing disc 32. The other side of the crushing disc 32 is connected to the power output end of the crushing drive mechanism 33. The crushing drive mechanism 33 can drive the crushing disc 32 to rotate, thereby crushing the dried filter blocks to obtain mineral powder. The dried filter blocks enter the feeding mechanism 34 through the feed inlet of the crushing assembly 3. The feeding mechanism 34 conveys the dried filter blocks to the crushing disc 32. The feeding mechanism 34 does not rely on the gravity of the mineral powder itself, thus ensuring the conveying capacity for low-density mineral powder and preventing low-density mineral powder from falling into the crushing disc 32 by gravity, which could cause material accumulation and blockage in the feed channel.

[0080] In this embodiment, the first fixed base 5 and the second fixed base 6 serve a supporting function. They can be an integral structure or two independent fixed bases; no limitation is made in this embodiment. A liquid collection tank 8 is also provided below the filter assembly 1 to allow the liquid filtered by the filter assembly 1 to drain into the liquid collection tank 8. A drain pipe 9 can also be connected to the liquid collection tank 8 to drain the liquid or other materials in the liquid collection tank 8 into the slurry tank.

[0081] By applying the above-mentioned technical solution of this utility model, the liquid in the slurry is filtered out by the filter component 1 to form a mineral-containing filter block, the mineral-containing filter block is dried by the drying component 2 to obtain a dried filter block, the dried filter block is crushed by the crushing component 3 to obtain mineral powder, and the mineral powder is pressed into a sample cake for testing by the pressing component 4. The crushing component 3 conveys the dried filter block to the crushing disc 32 for crushing through the feeding mechanism 34. It does not rely on gravity, thus ensuring the conveying capacity of low-density mineral powder and preventing low-density mineral powder from falling into the crushing disc 32 by gravity, which would cause material accumulation and blockage in the feed channel, thereby effectively ensuring the normal operation of the device.

[0082] See Figure 8 , 9As shown in Figure 10, in this embodiment, the feeding mechanism 34 includes a screw feeder and a feeding drive assembly. The crushing shell 31 is provided with an inlet and an outlet at intervals along its length. The screw feeder and the crushing disc 32 are disposed inside the crushing shell 31. The screw feeder is located below the inlet of the crushing shell 31, and the crushing disc 32 is located above the outlet of the crushing shell 31. The feeding drive assembly can drive the screw feeder to rotate so as to transport the dried filter blocks that enter through the inlet of the crushing shell 31 to the crushing disc 32. The crushing shell 31 is a horizontally arranged shell structure. The inlet and outlet of the crushing shell 31 are horizontally arranged at both ends, with a certain distance between them. The screw feeder and the crushing disc 32 are arranged sequentially from the inlet to the outlet. The feeding drive assembly includes a screw conveyor motor 341. The drive shaft of the screw conveyor motor 341 is connected to the screw feeder through a conveyor motor bearing 342, driving the screw feeder to rotate and squeeze the dried filter blocks into the crushing disc 32, thereby effectively preventing material accumulation at the inlet and avoiding material blockage. In this embodiment, the conveyor motor bearing 342 is mounted on one side of the crushing shell 31 through a screw bearing seat 343. The screw conveyor motor 341 is covered by a screw motor protective cover 344 to protect it.

[0083] See Figure 8 As shown, in this embodiment, the screw feeder includes a conveying shaft 345 and screw blades 346 mounted on the conveying shaft 345. The screw blades 346 are arranged along the axial direction of the conveying shaft 345. The crushing disc 32 is provided with a plurality of crushing blades 321 on the side near the screw feeder. Each crushing blade is located above the discharge port of the crushing housing 31. The crushing drive mechanism 33 includes a crushing motor 331, a crushing motor base 332, a coupling 333, a crushing motor bearing 334, and a coupling cover 335. The crushing motor 331 is mounted on the outside of the crushing housing 31 through the crushing motor base 332. The output shaft of the crushing motor 331 is connected to the coupling 333. The coupling 333 is connected to the crushing disc 32 through the crushing motor bearing 334. The coupling 333 is covered by a coupling cover 335 to protect the coupling 333. Specifically, when the dried filter block discharged from the drying assembly 2 enters the feed inlet of the crushing shell 31, it is squeezed by the spiral blades 346 and conveyed to the crushing disc 32. The crushing disc 32 rotates, driving the crushing blades 321 to rotate and crush the dried filter block to obtain mineral powder. The mineral powder is discharged from the discharge outlet of the crushing shell 31 below the crushing blades 321 and enters the pressing assembly 4 to complete the crushing process.

[0084] See Figures 2 to 5As shown, in this embodiment, the filter assembly 1 includes a filter base 11, a filter container 12, a pneumatic control assembly, a metering device, and a filter plate 13. The filter container 12 is disposed on the filter base 11, and has an inlet and an outlet at its upper and lower ends, respectively. The inlet of the filter container 12 is connected to the metering device, which controls the amount of slurry injected into the filter container 12. The pneumatic control assembly is connected to the filter container 12 and is used to control the pressure inside the filter container 12. The filter plate 13 has filter holes (not shown in the figure) for liquid to flow out. The filter plate 13 is movably disposed below the outlet of the filter container 12, and the filter plate 13 can open or close the outlet of the filter container 12. Specifically, the filter base 11 serves as a support to support the filter container 12 and the filter plate assembly. The top plate of the filter base 11 is provided with a flap clearance hole, the filter container 12 is disposed above the filter base 11, and the outlet of the filter container 12 can extend from the flap clearance hole into the interior of the filter base 11. The inlet at the top of the filter container 12 is a liquid inlet 121, used to inject slurry into the filter container 12. The filter plate 13 has an open state and a closed state, such as... Figure 2 As shown, when closed, the filter plate 13 seals the outlet of the filter container 12. The filter plate 13 is provided with filter holes, so that the liquid in the slurry can flow out from the filter holes and be discharged into the collection tank 8, and then discharged into the slurry pool through the drain pipe 9. The solid minerals in the slurry remain on the filter plate 13 to form mineral-containing filter blocks. When the filter plate 13 is open, the filter plate 13 is in the open position, the outlet of the filter container 12 is unobstructed, and the mineral-containing filter blocks can fall from the filter plate 13 into the drying assembly 2.

[0085] See Figure 3 and Figure 4As shown, in this embodiment, the metering device includes a metering cylinder (not shown) and a level sensor 122. The metering cylinder is connected to the inlet of the filter container 12 and is used to hold a preset injection volume of slurry. The level sensor 122 is installed on the filter container 12 and is used to detect the slurry level in the filter container. The pneumatic control component includes an air compressor (not shown) and a pneumatic control box 128. The air compressor is connected to both the pneumatic control box 128 and the filter container 12. Specifically, the metering cylinder is a container with a preset volume, used to hold the slurry and supply it to the filter container 12. The level sensor 122 can be an electronic level gauge, used to detect the slurry level in the filter container 12. When the slurry level in the filter container 12 reaches the preset level, the input of slurry into the filter container 12 is stopped, thereby controlling the slurry input into the filter container 12 before filtration. By metering the slurry into the filter container and detecting the level of the injected slurry using the level sensor 122, a precise metered supply of slurry can be provided. A pressure switch 123 may also be provided on the filter container 12 to detect the pressure inside the filter container 12. When the pressure inside the filter container 12 reaches or exceeds a preset pressure, the switch opens to connect the filter container 12 to the external atmosphere, thereby controlling the filtration state inside the filter container 12 to avoid insufficient or excessive filtration of the cake. A slurry inlet connector 124 is connected to the liquid inlet 121, which has three connecting channels: a gas channel, a liquid level measurement channel, and a liquid inlet channel. Each connecting channel is connected to the filter container 12. A liquid level sensor 122 is installed on the slurry inlet connector 124, passing through the liquid level measurement channel and extending into the filter container 12 to detect the slurry level inside the filter container 12. The pressure switch 123 is located on the side wall of the slurry inlet connector 124 and is connected to the gas channel to measure the pressure of the gas channel, the liquid inlet 121, and the filter container 12, and to control the connection between the atmosphere and the gas channel. The side wall of the slurry inlet connector 124 is also provided with an air inlet 1241, which is connected to the gas channel. The air inlet 1241 can be equipped with an air inlet connector for connecting an air compressor to provide air pressure (i.e., pressurize) into the filter container 12. The air compressor is also connected to an air control box 128, which is installed on the filter base 11 and is used to control the air compressor to provide air pressure into the filter container 12. A three-way valve 125 is also connected to the liquid inlet channel of the slurry inlet connector 124. Of the other two outlets of the three-way valve 125, one outlet is connected to a metering device, and the other outlet is connected to the liquid collection tank 8.

[0086] See Figures 2 to 5As shown, in this embodiment, the filter assembly 1 further includes a rejection assembly 14 and a locking assembly 15. The rejection assembly 14 includes a rejection mechanism 141 and a rejection mechanism dust cover 142 for covering the rejection mechanism 141. The rejection mechanism 141 is disposed on the filter base 11 and located on one side of the filter plate 13, and is used to reject the mineral-containing filter blocks on the filter plate 13 so that they fall into the drying assembly 2. The locking assembly 15 includes a locking mechanism 151 and a locking dust cover 152 for covering the locking mechanism 151.

[0087] In this embodiment, to ensure that the mineral-containing filter blocks can fall from the filter plate 13 into the drying assembly 2, two rejection mechanisms 141 are provided, respectively arranged on both sides of the filter plate 13. Of course, there can be one or more rejection mechanisms 141, which is not limited here. In this embodiment, the rejection mechanism 141 can be a cake-shaped air knife, which can be inclined and arranged parallel to the filter plate 13 in the open state. When the filter plate 13 is rotated to the open state, it blows the mineral-containing filter blocks off, that is, when the filter plate 13 is in the open state, it sprays air onto the mineral-containing filter blocks on the filter plate 13, applying a blowing force to the mineral-containing filter blocks so that they fall off the filter plate 13 and into the drying assembly 2. Of course, in other embodiments, the rejection mechanism 141 can also be other rejection mechanisms, such as a scraping mechanism, used to apply a scraping force to the cake to make the cake fall. When air-knife blows through the mineral-containing filter blocks, dust may overflow from the gaps in the structural components. A dust cover 142 for the discarding mechanism is installed to prevent this overflow. The dust cover 142 can be made of sheet metal welded or stamped, or it can be integrally machined and installed by screwing it to the main body. Furthermore, the dust cover 142 can have pneumatic or electric transition joints required for the mechanism's operation, facilitating structural maintenance.

[0088] In this embodiment, the filter base 11 is also provided with a locking assembly 15, which includes a locking mechanism 151 and a locking dust cover 152. The locking mechanism 151 is used to lock the filter plate 13 onto the filter base 11 when the filter plate 13 is in the closed state, so as to ensure the stability of the filter plate 13 in sealing and filtering. Specifically, the locking assembly 15 includes a locking mechanism 151, and there can be two locking mechanisms 151, which are respectively arranged on both sides of the filter plate 13 (relative to the filter base 11). Figure 4(As shown in the diagram), it is used to lock and release the filter plate 13. When the filter plate 13 is in the closed state, it is locked along with the filter plate 13. After filtration is completed, the filter plate 13 can be released so that the filter plate 13 can be rotated to the open state. This allows the mineral-containing filter block to fall along the top wall of the filter plate 13 under the action of blowing or scraping, and fall downward under the limiting action of the side plate of the filter base 11. The locking mechanism 151 can be a self-locking pneumatic gripper to clamp the filter plate 13 in the closed state, thereby realizing the pressure locking and release of the filter plate 13. Of course, the filter plate 13 can also be other locking structures, and no limitation is made on them in this embodiment. The locking dust cover 152 is provided on the exposed part of the locking mechanism 151 to prevent dust from overflowing from the filter assembly 1. Optionally, the locking dust cover 152 includes a dustproof shell and a dustproof brush disposed in the dustproof shell.

[0089] See Figure 2 As shown, the filter plate 13 can also be connected to a filter plate drive mechanism 16, which is used to drive the filter plate 13 to rotate so that the filter plate can switch states. Specifically, the filter base 11 can be provided with a filter plate pin seat 17, and the fixing seat of the filter plate drive mechanism 16 can also be installed on the filter base 11. Both the filter plate pin seat 17 and the fixing seat of the filter plate drive mechanism 16 can be fixed to the filter base 11 by bolts or other connecting parts. The power output end of the filter plate drive mechanism 16 can be inserted through the top plate of the filter base 11 and extend into the interior of the filter base 11. The power output end of the filter plate drive mechanism 16 is provided with a connecting ear 18. The filter plate pin seat 17 can also be provided with a connecting ear 18 located inside the filter base 11. The connecting ear on the filter plate pin seat 17 is located between the opening end of the filter container 12 and the connecting ear on the filter plate drive mechanism 16. The filter plate 13 is rotatably connected to the connecting ear on the filter plate pin seat 17 and the connecting ear on the filter plate drive mechanism 16 through a pin shaft. Under the driving action of the power output end of the filter plate drive mechanism 16, the filter plate 13 is driven to rotate around the connecting ear on the filter plate pin seat 17 to realize the switching of states. The filter plate drive mechanism 16 can be a flap cylinder structure with its power output end facing downwards. It is used to push the left end of the filter plate 13 to move up and down, so that the filter plate 13 can rotate around the connecting lug on the filter plate pin seat 17. That is, when filtration is required, the power output end of the flap cylinder structure, i.e. the filter plate drive mechanism 16, extends out, and the filter plate 13 is closed and rotated to the closed state. After filtration is completed, the power output end of the flap cylinder structure, i.e. the filter plate drive mechanism 16, retracts, and the filter plate 13 is opened and rotated to the open state.

[0090] See Figure 2As shown, in this embodiment, a filter drain trough 19 is provided below the filter plate 13 to collect the liquid flowing down from the filter plate 13. Specifically, the filter drain trough 19 is installed below the top plate of the filter base 11, and the filter drain trough 19 can also be installed below the filter plate 13, swinging with the swing of the filter plate 13. In this embodiment, the filter drain trough 19 can be connected to a drain pipe, and its outlet can be set in the collection tank 8, so that the water in the filter container 12 is discharged into the collection tank 8 through the guide of the filter drain trough 19 and the drain pipe by positive pressure, and then discharged into the slurry tank.

[0091] See Figure 2 and Figure 5 As shown, in this embodiment, a filter material trough 111 is also provided on the filter base 11 below the filter plate 13, so that the filter cake falls into the filter material trough 111 and, under the guidance of the filter material trough 111, falls into the drying assembly 2. Specifically, the filter material trough 111 is arranged inside the filter base 11. The mineral-containing filter block can fall along the top wall of the filter plate 13 under the action of blowing or scraping, and falls downward into the filter material trough 111 under the limiting action of the side plate of the filter base 11. The outlet of the filter material trough 111 can be arranged downward so that the mineral-containing filter block falls into the drying assembly 2 under the action of gravity.

[0092] The working principle of this filter assembly is as follows: When operation is required, the flap cylinder, i.e., the filter plate drive mechanism 16, extends to close the filter plate 13 into position, i.e., the filter plate 13 rotates into position. The self-locking pneumatic gripper, i.e., the locking mechanism 151, extends to lock the filter plate 13. The outlet of the three-way valve 125, connected to the metering cylinder, opens, and the pressure switch 123 opens to allow atmospheric air to pass through, or the solenoid valve at the air inlet opens to allow atmospheric air to pass through. The slurry enters the filter container 12 through the three-way valve 125 and the slurry inlet connector 124. When the level sensor 122 detects that the level gauge has reached the preset level, the outlet of the three-way valve 125, connected to the collection tank 8, opens, and excess slurry passes through the three-way valve... The liquid flows out of valve 125 to the collection tank 8 and is discharged into the slurry pool. At the same time, the solenoid valve at the air inlet is activated, and the air is compressed by the air compressor into the filter container 12. The water in the filter container 12 is discharged into the collection tank through the filter drain trough 19 and then discharged into the slurry pool through the positive pressure. When the pressure in the filter container 12 reaches the preset pressure, the solenoid valve at the air inlet is activated to connect the filter container 12 with the atmosphere. At the same time, the self-locking pneumatic gripper and the flip-plate cylinder retract in sequence. After the filter plate 13 is opened, the filter plate 13 rotates to the open state, and the air knives on both sides of the cake block open to spray out the ore-containing filter block, so as to remove the entire cake and let it fall into the filter material tank 111.

[0093] See Figures 6 to 7As shown, the drying assembly 2 in this embodiment includes: a drying support 21, a drying cylinder 22, a drying mechanism 23, and a primary crushing mechanism 24. The drying cylinder 22 is rotatably mounted on the drying support 21, and the drying mechanism 23 is fitted around the outer periphery of the drying cylinder 22 for heating and drying the minerals inside the drying cylinder 22 to obtain dried filter blocks. To improve the drying effect on the filter cake, preferably, a primary crushing mechanism 24 is provided at the inlet of the drying cylinder 22 for primary crushing of the filter cake before it enters the inlet of the drying cylinder 22, and the filter cake obtained from the primary crushing is fed into the drying cylinder 22 from the inlet of the drying cylinder 22.

[0094] See Figure 6 As shown, in this embodiment, the drying assembly 2 includes a drying support 21, a drying cylinder 22, a drying mechanism 23, a primary crushing mechanism 24, a cylinder driving mechanism 25, and a baffle mechanism 26. The drying cylinder 22 is rotatably mounted on the drying support 21, and the drying cylinder 22 is equipped with a drying mechanism 23 for heating and drying the minerals inside the drying cylinder 22. The cylinder driving mechanism 25 drives the drying cylinder 22 to rotate. The drying cylinder 22 has an inlet and a outlet. The primary crushing mechanism 24 is located at the inlet of the drying cylinder 22 and is used to perform primary crushing on the mineral-containing filter blocks and feed the crushed mineral-containing filter blocks into the drying cylinder 22. The baffle mechanism 26 is located at the outlet of the drying cylinder 22 and is used to block or release the dried filter blocks inside the drying cylinder 22. Specifically, the drying support 21 provides support for the drying cylinder 22 and the drying mechanism 23. The drying cylinder 22 can be arranged at an angle on the drying support 21, and the height of the inlet of the drying cylinder 22 is higher than the height of the outlet, i.e. Figure 6 The right end is higher than the left end, so that the material inside the drying cylinder 22 can move towards the discharge port under gravity and be dried by the drying cylinder 22 during the movement. Both the inlet and outlet of the drying cylinder 22 are rotatably supported on the drying support 21. Preferably, to drive the rotation of the drying cylinder 22, a cylinder drive mechanism 25 is connected to drive the drying cylinder 22 to rotate, so that the material inside the drying cylinder 22 rotates within the drying cylinder 22, resulting in uniform drying, improved drying efficiency, and material conveying to the discharge port. In this embodiment, the discharge port of the drying cylinder 22 may be equipped with a baffle mechanism 26 to block or release the drying filter blocks inside the drying cylinder 22, preventing leakage and insufficient sample cake quantity. Simultaneously, the drying time of the material inside the drying cylinder 22 can be controlled, thereby controlling the temperature and drying duration to meet the drying requirements under the influence of different mineral types and particle sizes.

[0095] See Figure 6As shown, in this embodiment, the drying mechanism 23 is sleeved on the outer periphery of the drying cylinder 22, and the drying mechanism 23 can be fixed on the drying support 21. It can heat the drying cylinder 22 to achieve heating and drying of the material inside the drying cylinder 22. The primary crushing mechanism 24 is set at the feed inlet of the drying cylinder 22, and part of it can extend into the filter trough 111 to crush the material cake falling into the filter trough 111. The crushed cake can be fed into the drying cylinder 22 from the feed inlet of the drying cylinder 22 for drying by the drying mechanism 23.

[0096] See Figure 6 and Figure 7 As shown, in this embodiment, the drying support 21 includes a base plate 211, two side support plates 212, and two support bearing plates 213. The two side support plates 212 are spaced apart, and the base plate 211 is inclined between the two side support plates 212. The two sides of the base plate 211 are connected to the two side support plates 212 respectively, forming a fixed support frame. Specifically, the base plate 211 is inclined, and the two side support plates 212 are vertically arranged on both sides of the base plate 211 to provide vertical support. The bottom ends of both side support plates 212 can each extend with a connecting plate arranged at an angle to the side support plates 212 for mounting on the pressing assembly 4. The top ends of both side support plates 212 can be fixed to the base plate 211 by welding or other means. The two support bearing plates 213 are respectively arranged on the other two sides of the base plate 211 (e.g., ...). Figure 6 The left and right sides (as shown) are used to provide rotational support for the inlet and outlet of the drying cylinder 22, respectively. Of course, the number of support bearing plates 213 can also be other, such as one or three; this embodiment does not impose any limitation. In this embodiment, the bottom end of the support bearing plate 213 can be fixed to the base plate 211 by welding or other fixing methods. A bearing can be provided between the support bearing plate 213 and the inlet or outlet of the drying cylinder 22 so that the drying cylinder 22 can rotatably pass through the support bearing plate 213 and can realize the rotation of the drying cylinder 22.

[0097] See Figures 6 to 7 As shown, in this embodiment, the drying mechanism 23 includes a coil sleeve 231 and a heating coil 232. The coil sleeve 231 is sleeved around the outer periphery of the drying cylinder 22, and the heating coil 232 is provided on the coil sleeve 231 for heating the coil sleeve 231, so that the coil sleeve 231 heats and dries the material inside the drying cylinder 22. Specifically, the coil sleeve 231 is fixedly supported above the drying bracket 21. In this embodiment, the coil sleeve 231 can be fixed to the drying bracket 21 by a coil support plate 233. The top of the coil support plate 233 can be sleeved around the outer periphery of the coil sleeve 231 to support the coil sleeve 231, and the bottom end can be fixed to the base plate 211 by bolts, or it can be fixed by other means.

[0098] See Figure 6As shown, in this embodiment, the primary crushing mechanism 24 includes a feed trough 241, a primary crushing body 242, a conveyor 243, and a dividing wheel 244. The feed trough 241 is located at the feed inlet of the drying cylinder 22, and the primary crushing body 242 is located at the feed inlet of the feed trough 241. The primary crushing body 242 and the drying cylinder 22 are connected by a linkage assembly, which includes a primary transmission component 245 and a secondary transmission component 246. The primary transmission component 245 is located on the drying cylinder 22, and the secondary transmission component 246 is connected to the power input end of the primary crushing body 242. Rotation of the drying cylinder 22 drives the primary transmission component 245 to rotate, which in turn drives the secondary transmission component 246 to rotate, and the secondary transmission component 246 drives the primary crushing body 242 to rotate. The conveyor 243... 43 is located inside the feed trough 241 and below the primary crushing body 242. The conveyor 243 is also connected to the drying cylinder 22 and rotates synchronously with it to transport the material fragments falling from the primary crushing body 242 from the feed inlet of the drying cylinder 22 into the drying cylinder 22. A dividing wheel 244 is located at the feed inlet of the drying cylinder 22 to divide the feed inlet into sections. The cylinder drive mechanism 25 includes a power motor 251, a power wheel 252, and a transmission belt 253. The power motor 251 is mounted on the drying support 21 via a motor support 254. The power wheel 252 is located on the output shaft of the power motor 251 and is connected to the drying cylinder 22 via a transmission belt to achieve rotational input. Specifically, the feed trough 241 is used to collect the slag from the primary crushing body 242, preventing the slag from falling and affecting the operation of other components. The primary crushing body 242 is rotatably disposed above the inlet of the feed trough 241. The primary crushing body 242 extends into the filter trough 111 to crush the mineral-containing filter blocks in the filter trough 111. The feed trough 241 is located directly below the outlet of the filter trough 111. The crushed mineral-containing filter blocks fall downwards from the outlet of the filter trough 111 into the feed trough 241. In this embodiment, the power input end of the primary crushing body 242 is connected to the drying cylinder 22 so that the primary crushing body 242 rotates when the drying cylinder 22 rotates, thereby achieving primary crushing of the mineral-containing filter blocks. Preferably, the power input end of the primary crushing body 242 and the drying cylinder 22 can be connected through a linkage component. The conveyor 243 is installed in the feed trough 241 and located directly below the primary crushing body 242. The conveyor 243 is also connected to the drying cylinder 22 and rotates synchronously with the drying cylinder 22 to transport the mineral-containing filter blocks that fall after primary crushing of the primary crushing body 242 from the feed inlet of the drying cylinder 22. Of course, the conveyor 243 can also be rotatably installed in the feed trough 241 in other ways to transport the mineral-containing filter blocks in other ways.To further improve the drying effect of conveying the mineral-containing filter blocks into the drying cylinder 22, preferably, the feed inlet of the drying cylinder 22 is provided with a dividing wheel 244, which can be fixed at the feed inlet of the drying cylinder 22 to divide the feed inlet of the drying cylinder 22 into multiple feed compartments, so that the mineral-containing filter blocks can enter the interior of the drying cylinder 22 from the feed compartments. When the mineral-containing filter blocks are large, they can be further crushed and squeezed.

[0099] See Figure 7 As shown, in this embodiment, the drum drive mechanism 25 further includes a motor tensioning plate 255, a motor support 254 mounted on the drying bracket 21, and a power motor 251 mounted on the motor support 254 via the motor tensioning plate 255. By adjusting the mounting position of the motor tensioning plate 255 on the motor support 254, the distance between the power wheel 252 and the drying drum 22 can be adjusted, thereby tightening or loosening the transmission belt 253. The motor support 254 has multiple threaded holes along its height direction, and the motor support 254 and the motor tensioning plate 255 are connected by tensioning screws. The mounting position of the motor tensioning plate 255 can be adjusted by moving the tensioning screws.

[0100] See Figure 6 As shown, the primary crushing body 242 includes a primary crushing shaft 2421 and a lever 2422 disposed on the primary crushing shaft 2421. Specifically, a primary transmission component 245 is connected to the drying cylinder 22, and a secondary transmission component 246 is connected to both the primary transmission component 245 and the primary crushing shaft 2421. The rotation of the drying cylinder 22 drives the primary transmission component 245 to rotate, which in turn drives the secondary transmission component 246 to rotate. The primary crushing shaft 2421 rotates under the action of the secondary transmission component 246, thereby causing the lever 2422 to rotate around the axis of the primary crushing shaft 2421 above the feed trough 241, thus performing primary crushing on the mineral-containing filter blocks. In this embodiment, the drying cylinder 22 is provided with a primary crushing bearing seat 2423 for rotatably supporting the primary crushing shaft 2421. That is, the primary crushing shaft 2421 is rotatably disposed in the primary crushing bearing seat 2423, and a bearing may also be provided between the two. There are multiple levers 2422, which are distributed in a radiating pattern along the circumference of the initial crushing axis 2421.

[0101] See Figure 6 As shown, in this embodiment, the conveying component 243 is a spiral conveyor, including a feed conveying shaft 2431 and spiral conveying blades 2432 disposed on the feed conveying shaft 2431. Specifically, the feed conveying shaft 2431 can be coaxially arranged with the dividing wheel 244, and the left end of the feed conveying shaft 2431 can be fixedly connected to the dividing wheel 244 so as to rotate synchronously with the feed dividing wheel 244 and the drying cylinder 22, thereby realizing the input of materials through the spiral conveying blades 2432. In this embodiment, the feed conveying shaft 2431, the dividing wheel 244, and the drying cylinder 22 can be an integral structure.

[0102] See Figure 6 As shown, in this embodiment, the primary transmission component 245 is a large gear, and the secondary transmission component 246 is a small gear, with the large gear meshing with the small gear. Specifically, the primary transmission component 245, i.e., the large gear, is sleeved on the outer wall of the drying cylinder 22, and the secondary transmission component 246, i.e., the small gear, is installed at the power input end of the primary crushing shaft 2421. The rotation of the drying cylinder 22 drives the large gear to rotate, and the meshing of the large gear and the small gear realizes the rotation of the primary crushing shaft 2421. The outer diameter of the large gear is larger than the outer diameter of the small gear.

[0103] Optionally, the primary transmission component 245 and the secondary transmission component 246 can also be belt drives, sprocket drives, etc. Alternatively, the primary and secondary transmissions can be gear drives, belt drives, sprocket drives, or friction wheel drives.

[0104] See Figure 6 As shown, in this embodiment, the material blocking mechanism 26 includes a material blocking cover 261, a material blocking drive 262, and a material blocking plate 263. The material blocking cover 261 is disposed outside the drying cylinder 22 and located at the discharge port of the drying cylinder 22. The material blocking drive 262 is disposed on the material blocking cover 261. The material blocking drive 262 is drivenly connected to the material blocking plate 263 so that the material blocking plate 263 can reciprocate within the material blocking cover 261 and the drying cylinder 22. In this embodiment, the baffle 261 is used to collect the dried mineral-containing filter blocks to prevent them from dispersing and leaking. A discharge port is formed at the bottom of the baffle 261, which is located above the feed port of the crushing shell 31. The discharge port of the drying cylinder 22 is provided with a baffle plate 263, which is used to control whether the dried filter blocks are discharged. When the baffle plate 263 is inside the baffle 261, that is, outside the discharge port of the drying cylinder 22, the dried filter blocks can be discharged from the discharge port to the outside of the drying cylinder 22 and fall into the crushing assembly 3. When the baffle plate 263 moves from the discharge port to the inside of the drying cylinder 22, it prevents the dried filter blocks from being discharged. The baffle drive 262 can be a cylinder or an electric telescopic rod, etc.

[0105] See Figures 11 to 15As shown, in this embodiment, the pressing assembly 4 includes a pressing support 41, a clamping drive mechanism 42, a pressing drive mechanism 43, a residual powder scraping mechanism 46, and a residual material removal component 47. The clamping drive mechanism 42 is mounted on the pressing support 41, and a sample ring fixture 44 is mounted on the power output end of the clamping drive mechanism 42. The sample ring fixture 44 is used to secure the sample ring 7, which can hold mineral powder. Under the driving action of the clamping drive mechanism 42, the sample ring fixture 44 and the sample ring 7 move up and down, so that the sample ring 7 can move to the feeding position to receive the mineral powder falling from the crushing assembly 3. The sample ring fixture 44 is equipped with a sample ring detection switch 48 for detecting the sample ring 7. The pressing drive mechanism 43 is mounted on the clamping support 41, a clamping drive mechanism 42, a pressing drive mechanism 43, a residual powder scraping mechanism 46, and a residual material removal component 47. Above the driving mechanism 42, the power output end of the pressing drive mechanism 43 is equipped with a pressure head 45, which moves towards the sample ring 7 under the driving action of the pressing drive mechanism 43 to press the mineral powder inside the sample ring 7 to obtain a sample cake. The excess powder scraping mechanism 46 is set on the pressing support base 41 to scrape off excess mineral powder on the sample ring 7 so that the sample ring 7 contains mineral powder with the same inner diameter and height as the sample ring. The excess material removal component 47 is set on the pressing support base and has multiple air holes. The excess material removal component 47 blows onto the sample cake through the multiple air holes to disperse excess mineral powder, ensuring the surface of the sample cake and sample ring 7 is clean, and reducing dust accumulation on the sample ring 7 during various stages of handling. Specifically, the pressing support base 41 provides support for the clamping drive mechanism 42, the pressing drive mechanism 43, the drying component 2, and the crushing component 3. The clamping drive mechanism 42 and the pressing drive mechanism 43 are arranged vertically along the same vertical line. Furthermore, the clamping drive mechanism 42 and the pressing drive mechanism 43 can be arranged opposite each other, allowing the sample ring fixture 44 to move upwards, i.e., towards the pressing head 45, thereby driving the sample ring 7 upwards to the feeding position. This allows the mineral powder falling from the crushing assembly 3 to fall into the sample ring 7. The pressing head 45 can then move downwards, i.e., closer to the sample ring fixture 44, to press the mineral powder within the sample ring 7. To control the pressing density of the sample cake, preferably, the pressing support 41 is equipped with an excess powder scraping mechanism 46, used to scrape away excess cake powder from the sample ring 7, ensuring that the sample ring 7 contains mineral powder equal to its inner diameter and height. This controls the volume of mineral powder before each pressing, thereby controlling the obtained sample cake. The thickness of the sample cake can be controlled by controlling the pressing drive mechanism 43. In this embodiment, the excess mineral powder is removed by blowing the pressed sample cake through the residual material removal component 47, thus ensuring the quality of the sample cake. The sample ring detection switch 48 is used to detect whether the sample ring 7 is placed on the sample ring fixture 44. When the sample ring 7 is detected to be in the sample ring fixture 44, the clamping drive mechanism 42 drives the sample ring fixture 44 and the sample ring 7 to move up and down, so that the sample ring 7 can move to the feeding position to receive the mineral powder falling from the crushing component 3.

[0106] See Figures 11 to 15 As shown, the pressing support 41 includes a top plate 411, two side plates 412, a back plate 413, a bottom plate 414, a support 415, and a front sealing plate 416. The bottom plate 414, side plates 412, back plate 413, and top plate 411 are assembled sequentially from bottom to top in a spatial arrangement. The back plate 413 is arranged vertically, and the two side plates 412 are respectively located on the two vertical sides of the back plate 413. The top plate 411 and bottom plate 414 are arranged horizontally at the top and bottom of the back plate 413 and the two side plates 412, respectively. The top of the two side plates 412 is also provided with a front sealing plate 416 arranged parallel to the back plate 413, which allows the top plate 411, the two side plates 412, and the front sealing plate 416 to form a top working area for feeding and pressing. The support 415 is located on the side of the back plate 413 facing away from the two side plates 412 (e.g., Figure 12 (As shown on the right), the drying assembly 2 can be supported. The drying assembly 2 is fixedly mounted on the support 415 by two side support plates 212. The clamping drive mechanism 42 can be fixed on the top plate 411, and the pressing drive mechanism 43 can be fixed on the bottom plate 414.

[0107] See Figure 15 As shown, a central ring positioning plate 417 may be provided on the pressing support base 41, and a sample ring positioning hole 418 is provided on the central ring positioning plate 417 for positioning the sample ring 7 so that the sample ring 7 moves to the sample ring positioning hole 418 under the action of the clamping drive mechanism 42 to receive the mineral powder flowing out of the crushing component 3. Specifically, a central ring positioning plate 417 is provided at the middle height position of the pressing support base 41, that is, at the position between the clamping drive mechanism 42 and the pressing drive mechanism 43. The central ring positioning plate 417 can be installed at the bottom of the top working area and can be fixed to the side plate by bolts. It can receive the mineral powder flowing out of the crushing component 3. Furthermore, the central ring positioning plate 417 has a sample ring positioning hole 418 directly above the clamping drive mechanism 42. The sample ring positioning hole 418 can be a round hole, so that the sample ring 7 moves upward to the sample ring positioning hole 418 under the driving action of the clamping drive mechanism 42, that is, it is in the feeding position. The feeding position can be positioned through the sample ring positioning hole 418 to ensure that the sample ring 7 is positioned in the feeding position, thereby ensuring the stability of receiving mineral powder and ensuring that mineral powder can be received. The central ring positioning plate 417 also has a residual powder hole, which is connected to the residual powder channel 49, so that the excess cake powder on the sample ring 7 is scraped into the residual powder hole and the residual powder channel 49 under the action of the residual powder scraping mechanism 46. In this embodiment, the pressure head 45, the sample ring positioning hole 418 of the middle ring positioning plate 417, and the sample ring fixture 44 are arranged coaxially, and the axis is arranged vertically.

[0108] See Figure 13 and Figure 15As shown, the residual powder scraping mechanism 46 includes a scraping pusher 461 and a scraper 462; the scraper 462 is disposed at the power output end of the scraping pusher 461 and is used to perform reciprocating linear motion under the driving action of the scraping pusher 461 to scrape off excess cake powder in the sample ring 7. Specifically, the scraping pusher 461 can be a scraping cylinder, and one end of the rod of the scraping cylinder (e.g., Figure 14 The right end shown is provided with a push plate 463, which is located on one side of the back plate 413 (e.g., the push plate 463 is located on the right end shown). Figure 14 On the right side), the push plate 463 has guide shafts 464 on both sides, and linear bearings are mounted on the back plate 413. At the front ends of the two guide shafts 464 on the other side of the back plate 413 (e.g., Figure 15 The scraper 462 is installed on the left end shown; the guide shaft 464, scraper 462, and push plate 463 move along the axial direction of the scraper cylinder as it extends and retracts.

[0109] See Figure 15 and Figure 16 As shown, in this embodiment, the residual material removal component 47 is a scraper air knife, which includes a long groove plate 471 and a perforated plate 472. The long groove plate 471 is provided with a ventilation groove, and the perforated plate 472 is covered above the groove. The perforated plate 472 is provided with multiple air holes, which are connected to the ventilation groove.

[0110] See Figure 14 and Figure 17 As shown, in this embodiment, the pressing drive mechanism 43 includes a housing 431, a pressing screw 432, a pressing slider 433, a pressing rod 434, and a pressing power assembly. The housing 431 is disposed on the top of the pressing support base 41. The pressing screw 432 and the pressing slider 433 are threadedly connected and are located inside the housing 431. One end of the pressing rod 434 is located inside the housing 431 and connected to the pressing slider 433. The other end of the pressing rod 434 extends into the pressing support base 41 and is connected to the pressing head 45. The pressing power assembly is used to drive the pressing screw 432 to rotate. The power output end of the pressing power assembly is connected to the pressing screw 432, driving the pressing screw 432 to rotate, causing the pressing slider 433 to move up and down along the pressing screw 432. This causes the pressing slider 433 to drive the pressing rod 434 and the pressing head 45 to move up and down, thereby pressing the mineral powder in the sample ring 7.

[0111] See Figure 14 and Figure 17As shown, in this embodiment, the clamping power assembly includes a clamping motor 435, a clamping wheel 436, an input wheel 437, and a timing belt 438. The clamping motor 435 is disposed on one side of the housing 431. The output shaft of the clamping motor 435 is connected to the input wheel 437. The input wheel 437 and the clamping wheel 436 are connected via the timing belt 438. The clamping wheel 436 is connected to the clamping screw 432. Specifically, a motor connecting plate 439 is provided on one side of the housing 431. The clamping motor 435 is mounted on the motor connecting plate 439 via a connecting plate seat 4310. A guide sleeve 4311 for the clamping rod 434 to pass through is installed at one end of the housing 431 near the top plate 411, and a bearing seat 4312 for supporting the rotation of the clamping screw 432 is installed at the other end of the housing 431 away from the top plate 411. The rotation of the pressing motor 435 drives the input wheel 437 to rotate. The input wheel 437 drives the pressing wheel 436 to rotate via the synchronous belt 438. The pressing wheel 436 drives the pressing screw 432 to rotate. The pressing screw 432 drives the pressing slider 433 to move up and down, which causes the dynamic pressure rod 434 and the pressure head 45 to move up and down, thereby pressing the mineral powder in the sample ring 7.

[0112] See Figure 17 As shown, in this embodiment, a guide block 4313 is provided along the axial direction of the outer shell 431. The guide block 4313 extends into the interior of the outer shell 431 and is slidably connected to the pressing slider 433. The guide block 4313 can guide the pressing slider 433 and prevent the pressing slider 433 from rotating, thereby making the movement of the pressing slider 433 more stable.

[0113] See Figure 18 and Figure 19As shown, in this embodiment, the clamping drive mechanism 42 includes a clamping upper seat 421, a clamping lower seat 422, a lifting rod assembly, a connecting rod self-locking mechanism, and a clamping drive member 423. The clamping upper seat 421 is disposed on the pressing support seat 41 and located below the pressing head 45. The clamping lower seat 422 is disposed on the pressing support seat 41 and located below the clamping upper seat 421. The lifting rod assembly passes through the clamping upper seat 421 and can move in the vertical direction. The connecting rod self-locking mechanism is disposed between the clamping upper seat 421 and the clamping lower seat 422. One end of the lifting rod assembly is located above the clamping upper seat 421 and connected to the sample ring fixture 44. The other end of the lifting rod assembly is located below the clamping upper seat 421 and hinged to one end of the connecting rod self-locking mechanism. The clamping drive 423 has a telescopic end, which is hinged to the other end of the connecting rod self-locking mechanism. The clamping drive 423 drives the connecting rod self-locking mechanism through the telescopic end to raise and lower the lifting rod assembly. When the sample ring 7 reaches the loading position, the connecting rod self-locking mechanism is in a self-locking state, and the lifting rod assembly stops raising and lowering. The clamping drive 423 drives the connecting rod self-locking mechanism, which in turn controls the lifting rod assembly to raise the sample ring fixture 44 and the sample ring 7. When the sample ring 7 reaches the loading position, the connecting rod self-locking mechanism becomes self-locking, preventing the sample ring 7 from moving downwards. Furthermore, the connecting rod self-locking mechanism can lock when the pressure head 45 is pressing, thereby preventing the mechanism from loosening or displacing under pressure and improving the safety and reliability of the device. Optionally, the clamping drive 423 can be a cylinder, an electric telescopic rod, etc.

[0114] See Figure 18 and Figure 19As shown, in this embodiment, the linkage self-locking mechanism includes a first linkage 424, a second linkage 425, a third linkage 426, and a fourth linkage 427. The first linkage 424 is a T-shaped rod. The first connecting end of the first linkage 424 is hinged to the telescopic end of the clamping drive member 423. The second connecting end of the first linkage 424 is hinged to the clamping lower seat 422. The third connecting end of the first linkage 424 is hinged to one end of the second linkage 425. The other end of the second linkage 425, one end of the third linkage 426, and one end of the fourth linkage 427 are hinged together. The other end of the third linkage 426 is hinged to the clamping lower seat 422, and the other end of the fourth linkage 427 is hinged to the lifting rod assembly. When the sample ring reaches the loading position, the third linkage 426, the fourth linkage 427, and the lifting rod assembly are located on the first straight line, and the second linkage 425 and the horizontal bar of the T-shaped rod are located on the second straight line. The first straight line is perpendicular to the second straight line. Specifically, the first end of the first connecting rod 424 is located on the vertical bar of the T-shaped rod, and the second and third ends are located on the horizontal bar of the T-shaped rod. The telescopic end of the clamping drive 423 is hinged to the first end by a pin. The main body of the clamping drive 423 is rotatably mounted on the clamping lower seat 422. The second end of the first connecting rod 424 is hinged to the clamping lower seat 422 by a pin. The third end of the first connecting rod 424 is hinged to one end of the second connecting rod 425 by a pin. The other end of the second connecting rod 425, one end of the third connecting rod 426, and one end of the fourth connecting rod 427 are hinged together by pins. The other end of the third connecting rod 426 is hinged to the clamping lower seat 422, and the other end of the fourth connecting rod 427 is hinged to the lifting rod assembly by a pin. When the clamping drive 423 is in the retracted position, i.e., when the sample ring reaches the loading position, the third link 426, the fourth link 427, and the lifting rod assembly are aligned on the first straight line, forming a self-locking mechanism in the vertical direction. The second link 425 and the horizontal bar of the T-shaped rod are aligned on the second straight line, forming a self-locking mechanism in the horizontal direction. Because self-locking is formed in both the horizontal and vertical directions, when the pressure head 45 clamps, the position of the sample ring fixture 44 remains unchanged, improving the stability of the mechanism. When the telescopic end of the clamping drive 423 retracts, the first link 424 drives the second link 425 to rotate, the second link 425 drives the third link 426 and the fourth link 427 to rotate, and the fourth link 427 drives the lifting rod assembly to move downwards, causing the sample ring fixture 44 to move away from the pressure head 45.

[0115] In addition to the rotation of the first link 424 and the second link 425, and the second link 425 driving the third link 426 and the fourth link 427, the link self-locking mechanism can also be equipped with more links to achieve power transmission, which is not limited here.

[0116] See Figure 18 and Figure 19As shown, in this embodiment, the lifting rod assembly includes a lifting rod 428, a positive and negative lead screw 429, and a nut 4210. The lifting rod 428 has an internal thread or a negative thread. One end of the positive and negative lead screw 429 is threadedly connected to the lifting rod 428, and the other end of the positive and negative lead screw 429 is connected to the nut 4210. The nut 4210 is connected to the sample ring fixture 44. By turning the positive and negative lead screw 429, the height position of the sample ring fixture 44 can be adjusted. In another embodiment, the lifting rod 428 is connected to the sample ring fixture 44, in which case the sample ring fixture has a positive thread.

[0117] See Figure 18 and Figure 19 As shown, in this embodiment, a guide sleeve 4211 is provided on the top of the clamping upper seat 421, and the lifting rod 428 passes through the guide sleeve 4211, allowing the lifting rod 428 to slide within the guide sleeve 4211. The guide sleeve 4211 has a guiding function.

[0118] The working principle of the pressing assembly is as follows: When the sample ring 7 is placed in the sample ring fixture 44, the clamping drive mechanism 42, i.e., the clamping drive component 423, drives the self-locking mechanism of the connecting rod to clamp the sample ring 7, raising the sample ring 7 and clamping it in the sample ring positioning hole 418 of the middle ring positioning plate 417, with the upper end face of the sample ring 7 flush with the upper plane of the middle ring positioning plate 417; at the same time, the scraper cylinder extends, the scraper 462 extends, and the crushed mineral powder flows into the sample ring 7. After installation, the scraper cylinder is activated, and the scraper 462 pushes the sample ring 7 into the sample ring. Excess powder above sample ring 7 is scraped to excess powder channel 49. At this time, sample ring 7 contains mineral powder with the same inner diameter and height as sample ring 7. After the mineral powder is the same height as sample ring 7, the pressing drive mechanism 43, i.e. the pressing power component, drives the pressure rod 434 to compact the mineral powder through the pressure head 45. Then, the pressing drive mechanism 43 drives the pressure head 45 to retract to its original position. The excess material removal component 47 blows dust off the pressed sample cake. After the blowing is completed, the lower ring clamping cylinder retracts. At this time, sample ring 7 is removed, and the inside of the ring contains a dense sample cake.

[0119] In summary, the solid preparation system for mineral analysis provided in this embodiment has the following beneficial effects:

[0120] (1) The crushing component 3 conveys the dried filter block to the crushing disc 32 for crushing through the feeding mechanism 34. It does not rely on gravity, thus ensuring the ability to convey low-density mineral powder. This avoids the situation where low-density mineral powder cannot fall into the crushing disc 32 by gravity, causing material blockage in the feed channel, thus effectively ensuring the normal operation of the device.

[0121] (2) The filtration component 1 can precisely control the slurry input into the filtration container 12 through a metering device;

[0122] (3) The filter assembly 1 can effectively prevent dust from overflowing by setting a dust cover 142 for the rejection mechanism and a dust cover 152 for locking;

[0123] (4) The drying assembly can prevent material leakage from the drying cylinder 22 by setting the baffle mechanism 26, which can prevent insufficient sample cake quantity. At the same time, it can control the drying time of the material in the drying cylinder 22, thereby controlling the temperature and drying time to meet the drying requirements under the influence of different mineral varieties and different mineral particle sizes.

[0124] (5) By setting a self-locking mechanism for the linkage, it can be locked, thereby preventing the mechanism from loosening or displacing under pressure, thus improving the safety and reliability of the device.

[0125] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0126] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0127] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A solid preparation system for mineral analysis, characterized in that, It includes a pressing assembly for pressing mineral powder into a sample cake for testing; the pressing assembly includes a pressing support, a clamping drive mechanism, a pressing drive mechanism, a residual powder scraping mechanism, and a residual material removal component; The clamping drive mechanism is mounted on the pressing support base, and a sample ring fixture is provided on the power output end of the clamping drive mechanism; the pressing drive mechanism is mounted above the clamping drive mechanism, and a pressure head is provided on the power output end of the pressing drive mechanism; the residual powder scraping mechanism is mounted on the pressing support base, and the residual material removal component is mounted on the pressing support base; the residual material removal component has multiple air holes, and the residual material removal component sprays onto the sample cake through the multiple air holes to disperse excess mineral powder; The scraping component is a scraping air knife, which includes a long groove plate and a perforated plate. The long groove plate is provided with a ventilation groove, and the perforated plate is placed above the groove. The perforated plate is provided with multiple air holes, which are connected to the ventilation groove.

2. The solid preparation system for mineral analysis according to claim 1, characterized in that, The sample ring fixture is used to secure a sample ring that can hold mineral powder. Under the driving action of the clamping drive mechanism, the sample ring fixture and the sample ring move up and down so that the sample ring can move to the feeding position to receive the mineral powder falling from the crushing component. The sample ring fixture is equipped with a sample ring detection switch for detecting the sample ring.

3. The solid preparation system for mineral analysis according to claim 2, characterized in that, The pressing component is used to move toward the sample ring under the driving action of the pressing drive mechanism to press the mineral powder in the sample ring to obtain a sample cake.

4. The solid preparation system for mineral analysis according to claim 3, characterized in that, The excess powder scraping mechanism is used to scrape off excess mineral powder from the sample ring so that the sample ring contains mineral powder that is the same size as the inner diameter of the sample ring and the same height as the sample ring.

5. The solid preparation system for mineral analysis according to claim 2, characterized in that, The pressing drive mechanism includes a housing, a pressing screw, a pressing slider, a pressing rod, and a pressing power assembly. The housing is located on top of the pressing support base. The pressing screw and the pressing slider are threaded together and are located inside the housing. One end of the pressing rod is located inside the housing and connected to the pressing slider. The other end of the pressing rod extends into the pressing support base and is connected to the pressing head. The pressing power assembly is used to drive the pressing screw to rotate.

6. The solid preparation system for mineral analysis according to claim 5, characterized in that, The clamping drive mechanism includes an upper clamping seat, a lower clamping seat, a lifting rod assembly, a connecting rod self-locking mechanism, and a clamping drive component. The upper clamping seat is mounted on the pressing support seat and located below the pressing head. The lower clamping seat is mounted on the pressing support seat and located below the upper clamping seat. The lifting rod assembly passes through the upper clamping seat and can move in the vertical direction. The connecting rod self-locking mechanism is located between the upper clamping seat and the lower clamping seat.

7. The solid preparation system for mineral analysis according to claim 6, characterized in that, One end of the lifting rod assembly is located above the clamping seat and connected to the sample ring fixture, while the other end of the lifting rod assembly is located below the clamping seat and hinged to one end of the connecting rod self-locking mechanism. The clamping drive has a telescopic end, which is hinged to the other end of the connecting rod self-locking mechanism. The clamping drive drives the connecting rod self-locking mechanism through the telescopic end to raise and lower the lifting rod assembly. When the sample ring reaches the loading position, the connecting rod self-locking mechanism is in a self-locking state, and the lifting rod assembly stops raising and lowering.

8. The solid preparation system for mineral analysis according to claim 7, characterized in that, The linkage self-locking mechanism includes a first link, a second link, a third link, and a fourth link. The first link is a T-shaped rod. The first connecting end of the first link is hinged to the telescopic end of the clamping drive component. The second connecting end of the first link is hinged to the clamping lower seat. The third connecting end of the first link is hinged to one end of the second link. The other end of the second link, one end of the third link, and one end of the fourth link are hinged together. The other end of the third link is hinged to the clamping lower seat, and the other end of the fourth link is hinged to the lifting rod assembly.

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