Multifunctional compression resistance testing device for laterite-nickel ore pellet strength detection

Abstract

The invention discloses a multifunctional compression resistance testing device for laterite-nickel ore pellet strength detection, and particularly relates to the technical field of laterite-nickel ore pellet compression resistance testing, the multifunctional compression resistance testing device comprises a pellet compression testing machine, the pellet compression testing machine comprises a detection table, a stabilizing frame and a pressing head, a supporting seat is fixedly mounted at the top of the detection table, and the supporting seat is fixedly mounted on the supporting seat; and the screening mechanism is used for selecting a plurality of laterite-nickel ore pellets. According to the laterite-nickel ore pellet screening device, through arrangement of the screening mechanism, laterite-nickel ore pellets can be screened before a compression test of the laterite-nickel ore pellets, the laterite-nickel ore pellets reaching the standard can be rapidly screened out, and during use, the multiple laterite-nickel ore pellets in the screening box are rapidly shaken and screened through cooperation of a vibration motor and a shaking elastic piece; and the laterite-nickel ore pellets reaching the standard pass through the screening opening, fall into the guide box and are rapidly discharged, so that the laterite-nickel ore pellets suitable for detection are rapidly screened out in a compression test of the laterite-nickel ore pellets.

Description

Technical Field

[0001] The present invention relates to the technical field of compressive strength testing of laterite nickel ore pellets. More specifically, the present invention relates to a multifunctional compressive strength testing device for

[0002] strength detection. Background Art

[0003] Producing metallized pellets from laterite nickel ore leaching residue: First, the leaching tailings are processed into preheated pellets with a water content of 10%

[0004] -20%, pre-treated with a reducing agent and a flux to form preheated pellets, then roasted and desulfurized to obtain desulfurized pellets, and finally reduced to obtain metallized pellets, which are mainly used in steel production. As blast furnace burden, they can replace part of traditional iron ores, provide elements such as nickel and iron for the blast furnace, and produce products such as nickel-containing pig iron or stainless steel. They are mainly used in steel production. As blast furnace burden, they can replace part of traditional iron ores, provide elements such as nickel and iron for the blast furnace, and produce products such as nickel-containing pig iron or stainless steel.

[0005] In the strength detection of laterite nickel ore pellets, a pellet pressure testing machine is used. The national standard for the compressive strength detection method of laterite nickel ore pellets can refer to GB / T14201-93 "Determination Method for Compressive Strength of Iron Ore Pellets". The specific steps are as follows: Specimen preparation: Select pellet ore with a diameter of 10.0 mm - 12.5 mm as the specimen through a screening device. Before the test, dry the pellet ore in an oven at 105 °C and then cool it to room temperature. Equipment calibration: Use a press with a load capacity greater than 10 kN, and ensure that the pressing plates of the press are parallel to each other, the plate surfaces are flat, and the plate surface parts in contact with the specimen need to be surface hardened. At the same time, calibrate the force value, displacement and other measurement systems of the press to ensure the measurement accuracy. Test operation: Place a single pellet ore between the two pressing plates of the press, and the pressing plates apply pressure at a constant speed of 15 mm / min until the pellet ore breaks, and record the maximum pressure borne by each pellet ore when it breaks. Data processing: Generally, multiple tests are required, usually not less than sixty specimens, to obtain a sufficient amount of data. Calculate the average value of the breaking pressures of all specimens as the compressive strength index of this batch of pellet ore. However, the existing pellet pressure testing machine used in the strength detection of laterite nickel ore pellets cannot automatically screen out suitable laterite nickel ore pellets before detection, reducing its automatic detection efficiency. And during the test of laterite nickel ore pellets, it lacks the function of continuously positioning laterite nickel ore pellets, resulting in that in the compressive strength detection of laterite nickel ore pellets, after each measurement, the laterite nickel ore pellets need to be manually cleaned before the compressive strength detection of the next laterite nickel ore pellet can continue.

[0006] Therefore, a pellet pressure testing machine is designed to screen out laterite nickel ore pellets with appropriate diameters before compressive testing and has a continuous positioning and cleaning structure for laterite nickel ore pellets, so as to continuously conduct compressive tests. Summary of the Invention

[0007] The purpose of the present invention is to provide a multifunctional compressive testing device for detecting the strength of laterite nickel ore pellets, so as to solve the problem in the existing pellet pressure testing machine that it cannot automatically screen out laterite nickel ore pellets with appropriate diameters before detecting laterite nickel ore pellets, so as to continuously conduct compressive tests on laterite nickel ore pellets.

[0008] To achieve the above purpose, the present invention provides the following technical solution: A multifunctional compressive testing device for detecting the strength of laterite nickel ore pellets, including a pellet pressure testing machine. The pellet pressure testing machine includes a detection table, a stabilizing frame and a pressing head. A support seat is fixedly installed on the top of the detection table, and further includes: a screening mechanism for selecting multiple laterite nickel ore pellets;

[0009] The screening mechanism includes a guiding box. The guiding box is fixedly installed on the top of the detection table. A screening box is arranged on the top of the guiding box. A vibrating elastic sheet is connected to the surface of the screening box. The surface of the vibrating elastic sheet contacts the inner wall of the guiding box. Multiple screening openings for screening laterite nickel ore pellets are opened at the bottom of the screening box. The multiple screening openings are evenly distributed in a circular shape at the bottom of the screening box. A vibration motor is fixedly installed at the bottom of the screening box. A continuous feeding structure is installed on the top of the detection table for continuously transporting the positioned laterite nickel ore pellets to the bottom of the pressing head for compressive testing.

[0010] Preferably, the continuous feeding structure includes a rotating rod. The rotating rod is movably connected to the top of the detection table. A connecting rod is connected to the surface of the rotating rod. The end of the connecting rod far from the rotating rod is connected to a positioning sleeve. A sliding platform located at the bottom of the positioning sleeve is fixedly installed on the top of the detection table. The surface of the rotating rod is driven by a transmission member to drive the rotating rod to perform circular motion. The top of the positioning sleeve cleans the residual slag during the compressive testing on the top of the support seat through a cleaning member.

[0011] Preferably, the transmission member includes a transmission gear. The transmission gear is connected to the surface of the rotating rod. A driving rod is movably connected to the top of the detection table. A driving gear meshing with the transmission gear is connected to the surface of the driving rod. The surface of the driving rod is rotationally adjusted by a driving member.

[0012] Preferably, the driving member includes a worm gear. The worm gear is connected to the surface of the driving rod. A worm is meshed with the surface of the worm gear. The rear end of the worm is connected to a driving motor. The driving motor is installed on the top of the detection table.

[0013] Preferably, the cleaning member includes a sliding block which is slidably connected to the top of the positioning sleeve. A cleaning brush is connected to the bottom of the sliding block, and a scraping plate is connected to the bottom of the sliding block and located outside the cleaning brush.

[0014] Preferably, a pressing ring is threadedly connected to the inner wall of the positioning sleeve and is located on the top of the sliding block.

[0015] Preferably, a collection box is arranged on the top of the detection table, and the collection box is located on the back of the support seat.

[0016] Preferably, a limiting rod located inside the jitter spring piece is connected to the surface of the screening box, and the outer side of the limiting rod penetrates to the outside of the guiding box.

[0017] Preferably, a support plate is connected to the top of the guiding box. A fixing rod is connected to the inner side of the support plate, and a baffle is sleeved on the surface of the fixing rod. The baffle is located on the top of the positioning sleeve.

[0018] Preferably, a sealing cover is threadedly connected to the top of the screening box, and the inner wall of the sealing cover is threadedly connected to the top of the surface of the screening box.

[0019] The technical effects and advantages of the present invention:

[0020] 1. Through the setting of the screening mechanism, the present invention can screen the laterite nickel ore pellets before the compressive test of the laterite nickel ore pellets, so that the laterite nickel ore pellets meeting the standards can be quickly screened out. During use, the vibration motor and the jitter spring piece cooperate to quickly jitter and screen a plurality of laterite nickel ore pellets inside the screening box, so that the laterite nickel ore pellets meeting the standards pass through the screening opening and fall into the guiding box and are quickly discharged, so as to quickly screen out the suitable laterite nickel ore pellets for detection during the compressive test of the laterite nickel ore pellets;

[0021] 2. Through the setting of the continuous feeding structure, the transmission member and the driving member mechanism, the driving member drives the worm and the worm gear to rotate through the driving motor, so that the worm gear drives the driving rod and the driving gear to rotate, so that the transmission gear drives the rotating rod to perform a circular motion, so that the laterite nickel ore pellets received by the positioning sleeve under the guidance of the guiding box can slide on the sliding platform and then move to the top of the support seat, so that after the pressing head is started, it can enter the positioning sleeve to perform a compressive test on the laterite nickel ore pellets positioned inside the positioning sleeve;

[0022] 3. In the present invention, through the arrangement of the cleaning member, during the process of the positioning sleeve driving the sliding block to move, the cleaning brush and the scraping plate are simultaneously driven to move. The cleaning brush and the scraping plate can clean the residual red clay nickel ore pellet fragments on the top of the support seat during the compressive strength detection of the red clay nickel ore pellets when the positioning sleeve rotates, so that the residual red clay nickel ore pellet fragments will not affect the strength of the compressive strength detection of the red clay nickel ore pellets during the next compressive strength detection of the red clay nickel ore pellets on the top of the support seat, and the phenomenon of misjudging that the compressive strength of the red clay nickel ore pellets is not high will not occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a schematic front view structure diagram of the present invention.

[0025] Figure 3 It is a schematic diagram of the continuous feeding structure of the present invention.

[0026] Figure 4 It is a three-dimensional schematic diagram of the screening mechanism of the present invention.

[0027] Figure 5 It is a three-dimensional schematic diagram of the cleaning member structure of the present invention.

[0028] Figure 6 It is a three-dimensional schematic diagram of the driving member structure of the present invention.

[0029] Figure 7 It is a schematic front view sectional diagram of the screening mechanism of the present invention.

[0030] Reference numerals are: 101, detection table; 102, stabilizing frame; 103, pressing head; 104, support seat; 21, guiding box; 22, screening box; 23, vibrating spring plate; 24, screening opening; 25, vibration motor; 31, rotating rod; 32, connecting rod; 33, positioning sleeve; 34, sliding platform; 41, transmission gear; 42, driving rod; 43, driving gear; 51, worm gear; 52, worm; 53, driving motor; 61, sliding block; 62, cleaning brush; 63, scraping plate; 7, pressing ring; 8, collection box; 9, limiting rod; 10, support plate; 11, fixing rod; 12, baffle; 13, sealing cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Embodiment 1

[0033] Reference Figure 1 、 Figure 2 、 Figure 4 and Figure 7 ,A multifunctional compressive test device for detecting the strength of laterite nickel ore pellets according to an embodiment of the present invention includes a pellet pressure testing machine, which includes a detection table 101, a stabilizing frame 102 and a pressing head 103. A support seat 104 is fixedly installed on the top of the detection table 101. The downward pressing motor on the stabilizing frame 102 is connected to a threaded sleeve plate and a fixing plate through a screw. The lifting plate at the bottom of the fixing plate can realize multiple pressurizations of the pressing head 103, and can perform a compressive strength test on the impact of laterite nickel ore pellets on the support seat 104. It further includes a screening mechanism for selecting multiple laterite nickel ore pellets;

[0034] The screening mechanism includes a guiding box 21, which is fixedly installed on the top of the detection table 101. A screening box 22 is arranged on the top of the guiding box 21. A vibrating elastic sheet 23 is connected to the surface of the screening box 22, and the surface of the vibrating elastic sheet 23 is in contact with the inner wall of the guiding box 21. A plurality of screening openings 24 for screening laterite nickel ore pellets are opened at the bottom of the screening box 22. The plurality of screening openings 24 are evenly distributed in a circular shape at the bottom of the screening box 22. A vibration motor 25 is fixedly installed at the bottom of the screening box 22. A continuous feeding structure for continuously transporting the positioned laterite nickel ore pellets to the bottom of the pressing head 103 for compressive testing is installed on the top of the detection table 101. A limiting rod 9 located inside the vibrating elastic sheet 23 is connected to the surface of the screening box 22. The outer side of the limiting rod 9 penetrates to the outside of the guiding box 21. The limiting rod 9 can limit a plurality of vibrating elastic sheets 23 and limit the screening box 22, so that the screening box 22 is stably placed inside the guiding box 21 to screen the laterite nickel ore pellets. A sealing cover 13 is threadedly connected to the top of the screening box 22. The inner wall of the sealing cover 13 is threadedly connected to the top surface of the screening box 22. The sealing cover 13 is threadedly connected to the screening box 22 to seal the top of the screening box 22, preventing the dust from flying during the screening of laterite nickel ore pellets from affecting the surrounding environment.

[0035] During actual use, when it is necessary to automatically screen multiple laterite nickel ore pellets before the compressive test of laterite nickel ore pellets, it can quickly screen out the laterite nickel ore pellets with a suitable diameter for compressive testing. During use, the vibration motor 25 is started, so that the vibration motor 25 vibrates the screening box 22 supported by the vibrating elastic sheet 23, so that the plurality of screening openings 24 on the screening box 22 can quickly vibrate and screen the multiple laterite nickel ore pellets, so that the qualified laterite nickel ore pellets pass through the screening openings 24 and fall into the guiding box 21 and are quickly discharged, so that the suitable laterite nickel ore pellets for detection can be quickly screened out during the compressive test of laterite nickel ore pellets;

[0036] In summary, through the setting of the screening mechanism, multiple laterite nickel ore pellets can be quickly screened before the compressive strength test of the laterite nickel ore pellets, so as to screen out the laterite nickel ore pellets with suitable diameters from the multiple laterite nickel ore pellets for the compressive strength test.

[0037] Embodiment 2

[0038] In order to automatically and continuously convey laterite nickel ore pellets onto the support seat 104 for continuous compressive strength detection, therefore, this embodiment improves the device described in the above embodiment.

[0039] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 6 , it further includes a continuous feeding structure, including a rotating rod 31. The rotating rod 31 is movably connected to the top of the detection table 101. A connecting rod 32 is connected to the surface of the rotating rod 31. One end of the connecting rod 32 away from the rotating rod 31 is connected to a positioning sleeve 33. A sliding platform 34 located at the bottom of the positioning sleeve 33 is fixedly installed on the top of the detection table 101. The surface of the rotating rod 31 is driven by a transmission member to drive the rotating rod 31 to perform a circular motion. The top of the positioning sleeve 33 cleans the residual slag during the compressive strength detection on the top of the support seat 104 through a cleaning member. The transmission member includes a transmission gear 41. The transmission gear 41 is connected to the surface of the rotating rod 31. A driving rod 42 is movably connected to the top of the detection table 101. A driving gear 43 meshing with the transmission gear 41 is connected to the surface of the driving rod 42. The surface of the driving rod 42 is rotationally adjusted by a driving member. The driving member includes a worm gear 51. The worm gear 51 is connected to the surface of the driving rod 42. A worm 52 is meshed with the surface of the worm gear 51. The rear end of the worm 52 is connected to a driving motor 53. The driving motor 53 is installed on the top of the detection table 101. After the driving motor 53 is started, it drives the worm 52 and the worm gear 51 to rotate, so that the worm gear 51 drives the driving rod 42 and the driving gear 43 to rotate, so that the transmission gear 41 drives the rotating rod 31 to perform a circular motion, so that the positioning sleeve 33 can slide on the sliding platform 34 after receiving the laterite nickel ore pellets guided by the guiding box 21 and move to the top of the support seat 104, so that after the pressing head 103 is started, it enters the positioning sleeve 33 to perform a compressive strength test on the laterite nickel ore pellets positioned inside the positioning sleeve 33. The top of the guiding box 21 is connected to a support plate 10. The inner side of the support plate 10 is connected to a fixing rod 11. A baffle 12 is sleeved on the surface of the fixing rod 11. The baffle 12 is located on the top of the positioning sleeve 33.

[0040] During actual use, the drive motor 53 starts to drive the worm 52 and the worm wheel 51 to rotate, causing the worm wheel 51 to drive the driving rod 42 and the driving gear 43 to rotate. The driving gear 43 drives the rotating rod 31 to perform a circular motion through meshing with the transmission gear 41. After the positioning sleeve 33 rotates to the bottom position of the red nickel ore pellet discharged from the guiding box 21, due to the blocking of the red nickel ore pellet by the baffle 12, the red nickel ore pellet can fall into the inside of the positioning sleeve 33 after being blocked. The positioning sleeve 33 continues to rotate, enabling the received red nickel ore pellet to slide on the sliding platform 34. After the red nickel ore pellet slides to the support seat 104 through the sliding of the sliding platform 34, the drive motor 53 is powered off, causing the worm wheel 51 and the worm 52 not to rotate, and further causing the driving rod 42 and multiple positioning sleeves 33 to stop using. The positioning sleeve 33 located on the support seat 104 drives the red nickel ore pellet to pause at the top of the support seat 104. So that after the indenter 103 is started, according to the test requirements, relevant parameters are set through the instrument control panel on the pellet pressure testing machine, and the test speed is set. The test speed can be adjusted between 1 - 200 mm / min. The indenter 103 enters the inside of the positioning sleeve 33 and starts to apply pressure to the red nickel ore pellet at the set speed, performing a strength compression test on the red nickel ore pellet positioned inside the positioning sleeve 33. The computer display screen will display the test force, displacement value, time, and the information of the compression deformation curve of the red nickel ore pellet in real time until the red nickel ore pellet breaks. After each red nickel ore pellet crushed by the indenter 103 is crushed and the value no longer rises, immediately close the oil supply valve of the pellet pressure testing machine and open the oil return valve to make the oil in the oil cylinder flow back to the oil tank, and record the test data, including the maximum value, minimum value, etc. of the compressed pellets in each group of tests. The test data can be automatically saved and the historical data can be queried;

[0041] In summary, through the settings of the continuous feeding structure, transmission parts, and driving part mechanism, on the one hand, it can automatically receive the red nickel ore pellets screened by the screening mechanism, position them, and transfer them to the support seat 104 for compressive strength testing. On the other hand, the automatically continuously transported red nickel ore pellets can improve the testing efficiency of the compressive strength of the red nickel ore pellets.

[0042] Embodiment Three

[0043] In order to automatically clean the crushed slag of the red nickel ore pellets after the compressive strength test on the support seat 104, therefore, this embodiment improves the device described in the above embodiment.

[0044] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 5, The cleaning member includes a sliding block 61 which is slidably connected to the top of the positioning sleeve 33. A cleaning brush 62 is connected to the bottom of the sliding block 61, and a scraping plate 63 located outside the cleaning brush 62 is connected to the bottom of the sliding block 61. The sliding block 61 is slidably mounted on the positioning sleeve 33, so that the cleaning brush 62 and the scraping plate 63 can clean the laterite nickel ore pellets remaining on the support seat 104 after the compressive test while the positioning sleeve 33 is moved away from the support seat 104, ensuring that the crushed slag of the laterite nickel ore pellets does not affect the next compressive test of the laterite nickel ore pellets. The inner wall of the positioning sleeve 33 is threadedly connected with a pressing ring 7 which is located on the top of the sliding block 61. The pressing ring 7 can press the sliding block 61, so that the sliding block 61 is pressed on the positioning sleeve 33 for stable use. A collection box 8 is provided on the top of the detection table 101, and the collection box 8 is located on the back of the support seat 104 to collect the crushed slag of the laterite nickel ore pellets swept off the support seat 104;

[0045] During actual use, after the positioning sleeve 33 is driven to rotate by the driving rod 42 and drives the cleaning brush 62 and the scraping plate 63 at the bottom of the sliding block 61 to rotate from the support seat 104, the cleaning brush 62 and the scraping plate 63 can clean the crushed slag of the laterite nickel ore pellets after the compressive test on the support seat 104, ensuring that the crushed slag of the laterite nickel ore pellets is swept off the support seat 104 without affecting the next compressive test of the laterite nickel ore pellets.

[0046] In summary, through the setting of the cleaning member, after the compressive test of the laterite nickel ore pellets, the crushed slag of the laterite nickel ore pellets after the compressive test on the support seat 104 can be cleaned to prevent the crushed slag of the laterite nickel ore pellets from contacting the next laterite nickel ore pellet to be tested and affecting the accuracy of the compressive strength of the laterite nickel ore pellets.

[0047] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0048] Second: In the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0049] Finally: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multifunctional compressive testing device for detecting the strength of laterite nickel ore pellets, comprising a pellet pressure testing machine, the pellet pressure testing machine including a detection table (101), a stabilizing frame (102) and a pressing head (103), a support base (104) being fixedly installed on the top of the detection table (101), characterized in that, It further includes: a screening mechanism for selecting multiple laterite nickel ore pellets; The screening mechanism includes a guiding box (21) fixedly installed on the top of the detection table (101). A screening box (22) is arranged on the top of the guiding box (21). A jitter spring piece (23) is connected to the surface of the screening box (22), and the surface of the jitter spring piece (23) is in contact with the inner wall of the guiding box (21). A plurality of screening openings (24) for screening laterite nickel ore pellets are formed at the bottom of the screening box (22). The plurality of screening openings (24) are evenly distributed in a circular shape at the bottom of the screening box (22). A vibration motor (25) is fixedly installed at the bottom of the screening box (22). A continuous feeding structure for continuously conveying the positioned laterite nickel ore pellets to the bottom of the pressing head (103) for compressive testing is installed on the top of the detection table (101).

2. The multifunctional compressive test device for detecting the strength of laterite nickel ore pellets according to claim 1, characterized in that: The continuous feeding structure includes a rotating rod (31) movably connected to the top of the detection table (101). A connecting rod (32) is connected to the surface of the rotating rod (31). One end of the connecting rod (32) away from the rotating rod (31) is connected to a positioning sleeve (33). A sliding platform (34) located at the bottom of the positioning sleeve (33) is fixedly installed on the top of the detection table (101). The surface of the rotating rod (31) drives the rotating rod (31) to perform circular motion through a transmission member. The top of the positioning sleeve (33) cleans the residues on the top of the support seat (104) during the compressive testing process through a cleaning member.

3. The multifunctional compressive testing device for detecting the strength of laterite nickel ore pellets according to claim 2, characterized in that: The transmission member includes a transmission gear (41) connected to the surface of the rotating rod (31). A driving rod (42) is movably connected to the top of the detection table (101). A driving gear (43) meshing with the transmission gear (41) is connected to the surface of the driving rod (42). The surface of the driving rod (42) is rotationally adjusted through a driving member.

4. The multifunctional compressive testing device for detecting the strength of laterite nickel ore pellets according to claim 3, wherein: The driving member includes a worm gear (51) connected to the surface of the driving rod (42). A worm (52) meshes with the surface of the worm gear (51). The rear end of the worm (52) is connected to a driving motor (53), and the driving motor (53) is installed on the top of the detection table (101).

5. The multifunctional compressive test device for detecting the strength of laterite nickel ore pellets according to claim 4, characterized in that: The cleaning member includes a sliding block (61) slidably connected to the top of the positioning sleeve (33). A cleaning brush (62) is connected to the bottom of the sliding block (61). A scraping plate (63) located outside the cleaning brush (62) is connected to the bottom of the sliding block (61).

6. The multi-functional compressive testing device for detecting the strength of laterite nickel ore pellets according to claim 5, wherein: A pressing ring (7) is threadedly connected to the inner wall of the positioning sleeve (33), and the pressing ring (7) is located on the top of the sliding block (61).

7. The multi-functional compressive test device for detecting the strength of laterite nickel ore pellets according to claim 6, characterized in that: A collection box (8) is arranged on the top of the detection table (101), and the collection box (8) is located on the back of the support seat (104).

8. A multifunctional compressive testing device for detecting the strength of laterite nickel ore pellets according to claim 7, characterized in that: A limiting rod (9) located inside the jitter spring piece (23) is connected to the surface of the screening box (22), and the outside of the limiting rod (9) penetrates to the outside of the guiding box (21).

9. A multifunctional compressive testing device for detecting the strength of laterite nickel ore pellets according to claim 8, characterized in that: The top of the guiding box (21) is connected with a support plate (10), the inner side of the support plate (10) is connected with a fixing rod (11), a baffle plate (12) is sleeved on the surface of the fixing rod (11), and the baffle plate (12) is located at the top of the positioning sleeve (33).

10. A multi-functional compressive testing device for detecting the strength of laterite nickel ore pellets according to claim 9, characterized in that: The top of the screening box (22) is threadedly connected with a sealing cover (13), and the inner wall of the sealing cover (13) is threadedly connected with the top of the surface of the screening box (22).

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