A device for detecting compressive strength factors of pellets

Abstract

The present invention relates to a detection device for the compressive strength factor of pellet ore, belonging to the technical field of ironmaking process, S1: select pellet samples of the same batch, weigh them respectively, record the mass, and mark them; S2: perform porosity detection on the pellet samples of the batch to obtain the porosity index; S3: perform compressive detection on eight groups of pellet samples of the batch through the detection device at the same time. The present invention realizes the separation of the internal pellet samples of the fixed cover into eight equal parts through the cooperation of the feeding component and the driving component, cooperates with the shielding ring and the electric telescopic rod A to realize the one-time delivery of the pellet samples, and then realizes the compressive strength detection of eight groups of samples in one environment through the downward pressure mechanism and the pressure sensor, realizes the cleaning and crushing of the pellet samples and the feeding in sequence through the cooperation of the scraper and the reduction motor, and the pellet samples can be tested again in the same way, so as to realize the continuity of the detection, shorten the overall detection time, and improve the overall detection work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of ironmaking technology, and in particular to a device for detecting the compressive strength factor of pellet ore. Background Art

[0002] Magnetite concentrate usually adopts two agglomeration processes, sintering and pelletizing. By comparing the six core technical parameters of the two agglomeration processes: finished ore strength, finished product rate, process energy consumption, processing fee, pollutant generation per ton of ore and metallurgical properties of finished ore, the pelletizing process is significantly better than the sintering process. Therefore, the use of pelletizing technology for magnetite has become a key development direction of agglomeration technology. There are many factors affecting the quality of pellets, especially the strength and metallurgical performance indicators. Therefore, it is necessary to analyze the influence of various factors on the mineral phase components of pellets and the internal porosity of pellets in order to effectively find solutions to improve the strength of pellets and their metallurgical properties.

[0003] In the production process of pellets, the content of this phase can be controlled by adjusting the raw material ratio, etc., so as to improve the compressive strength of the pellets. Axial pressure is applied to the pellet samples in a specially designed compression test box to obtain the uniaxial compressive strength. This step directly obtains data related to the compressive strength and is the core detection link of the entire measurement method. Generally, staff members conduct material testing one by one. When there are many pellet samples, the detection time is long and the labor intensity is high. In addition, the compressive strength of the pellet samples is also related to the temperature and humidity in the environment. Traditional equipment is difficult to adjust environmental factors, which makes the reference value of the test data low. Therefore, there is still room for improvement in the detection method. Summary of the invention

[0004] The object of the present invention is to provide a device for measuring the compressive strength factor of pellets, so as to solve the problem that the method of feeding pellets one by one during the detection of the existing pellets mentioned in the above background technology is cumbersome and the detection time is long.

[0005] To achieve the above object, the present invention provides the following technical solution: a method for detecting a pellet compressive strength factor detection device, comprising the following steps:

[0006] S1: Select pellet samples from the same batch, weigh them separately, record the mass, and mark them;

[0007] S2: Conduct porosity testing on the batch of pellet samples to obtain a porosity index;

[0008] S3: The eight groups of pellet samples in the batch are subjected to compression testing by a testing device at the same time, and the uniaxial compressive strength of the pellet samples is tested and recorded;

[0009] S4: Clean the crushed pellet samples, feed them again, change a single factor, and achieve batch testing;

[0010] S5: Scan the cross section of the crushed pellet sample and record the composition;

[0011] S6: Analyze the porosity index, compressive strength index and relationship between the mineral phase components and environmental parameters of the pellet sample to determine the factors affecting the compressive strength of the pellet;

[0012] The detection device includes a base, a pressure test box on the upper surface of the base, four groups of brackets are arranged on the upper surface of the base, the outer sides of the pressure test box are fixedly connected to the inner walls of the four groups of brackets, a partition seat is arranged inside the pressure test box, a feed port and a collecting trough are respectively arranged at two ends of the outer surface of the pressure test box, the collecting trough is located directly below the feed port, a receiving groove is arranged at the bottom of the feed port, and two groups of electric telescopic rods A are arranged inside the receiving groove, and a shielding ring is arranged at the output end of the electric telescopic rod A, a breathable plate is arranged on the inner side of the pressure test box, and the lower surface of the breathable plate is fixedly connected to the upper surface of the feed port, a support seat is fixed on the inner wall of the pressure test box, a feeding assembly is arranged on the outer side of the pressure test box, a driving assembly is arranged below the pressure test box, a cleaning assembly is arranged on the outer surface of the pressure test box, a pressing mechanism is arranged on the lower surface of the breathable plate, and the pressing mechanism is located above the cleaning assembly, and a humidifier is arranged on the upper surface of the pressure test box.

[0013] Preferably, the feeding assembly includes a rotating seat rotatably connected to the outside of the pressure resistance testing box, a fixed cover is fixed to the outside of the pressure resistance testing box, and the inner wall of the fixed cover is rotatably connected to the outer wall of the rotating seat, a dividing trough is arranged inside the rotating seat, a discharge port is arranged on the inner wall of the rotating seat, and the discharge port is communicated with the dividing trough, a liquid crystal display is arranged on the outside of the rotating seat, and a single-chip microcomputer is arranged between the liquid crystal display and the rotating seat.

[0014] Preferably, the bottom of the discharge port is arranged in an inclined shape, the size of the discharge port is adapted to the size of the feed port, the inner wall of the rotating seat is fitted with the outer wall of the pressure resistance test box, and the cross-section of the fixed cover is arranged in an inverted trapezoid.

[0015] Preferably, the driving assembly includes a connecting rod A fixed on both sides of the rotating seat, an installation groove is provided inside the base, and a reduction motor is provided inside the installation groove, and the output shaft of the reduction motor is fixedly connected to the connecting rod A, a limiting ring is fixed on the lower surface of the connecting rod A, a limiting groove is provided on the upper surface of the base, and the limiting groove is rotatably connected to the connecting rod A.

[0016] Preferably, the cleaning assembly includes a scraper rotatably connected below the partition seat, a rotating ring is fixed to the outer side of the scraper, and the rotating ring is rotatably connected to the inner wall of the pressure resistance testing box, the scraper and the partition seat are located in the same vertical plane, a connecting shaft is fixed to the lower surface of the scraper, and the lower surface of the connecting shaft is fixedly connected to the upper surface of the connecting rod A, and the interior of the collection tank is slidably connected to the material receiving box.

[0017] Preferably, the upper surface of the scraper is in contact with the lower surface of the partition seat, and the lower surface of the scraper is on the same horizontal plane as the upper surface of the support seat.

[0018] Preferably, the pressing mechanism includes an electric telescopic rod B fixed on the lower surface of the air-permeable plate, the telescopic end of the electric telescopic rod B is fixed with a fixed seat, the outer surface of the partition seat is provided with a slide groove, the upper surface of the partition seat is provided with a circular groove, the pressing mechanism extends into the interior of the partition seat, the fixed seat extends out of the interior of the slide groove, a connecting plate is provided on the outer side of the fixed seat, a pressing plate is provided below the connecting plate, and a detection component is provided on the lower surface of the connecting plate.

[0019] Preferably, the detection assembly includes a pressure sensor arranged on the lower surface of the connecting plate, a connecting rod B is arranged on the upper surface of the lower pressure plate, a through hole is arranged on the surface of the connecting plate, the connecting rod B extends to the top of the connecting plate, a spring is sleeved on the outside of the connecting rod B, and the spring is located between the connecting plate and the lower pressure plate.

[0020] Preferably, the connecting rod B and the spring are symmetrically arranged about the pressure sensor, the feed port and the scraper divide the interior of the pressure test box into eight equal parts, the two sides of the connecting plate are in contact with the partition seat, and the end of the connecting plate away from the fixed seat is tightly in contact with the inner wall of the pressure test box.

[0021] Preferably, ventilation holes of the humidifier group are arranged above the ventilation plate, and the ventilation holes are connected with the inner wall of the partition seat, temperature sensors and humidity sensors are arranged on both sides of the top of the inner wall of the pressure test box, and a heating plate is arranged in the inner wall of the pressure test box.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] In the prior art, the compressive strength of pellet samples is tested by feeding one by one, which has low efficiency. However, the present invention realizes the division of the internal pellet samples of the fixed cover into eight equal parts through the cooperation of the feeding component and the driving component, and realizes the one-time feeding of the pellet samples in cooperation with the shielding ring and the electric telescopic rod A. Then, the compressive strength of eight groups of samples are tested simultaneously under one environment through the pressing mechanism and the pressure sensor. The pellet samples after cleaning and crushing are realized through the cooperation of the scraper and the reduction motor, and the feeding is carried out in sequence. The pellet samples can be tested again in the same way, so as to realize the continuity of the detection, shorten the overall detection time, and improve the overall detection work efficiency. At the same time, the humidity and temperature are adjusted by the humidifier and the heating plate. The adjustment of a single factor is helpful to improve the reference value of the experiment, realize the analysis of the relationship between the porosity index, the compressive strength index and the mineral phase components of the pellet samples and the environmental parameters, and determine the factors affecting the compressive strength of the pellet ore. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of an embodiment of the present invention;

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the three-dimensional structure of the feeding assembly distribution of the present invention;

[0028] Figure 4 It is a schematic diagram of the three-dimensional structure of the compression test box of the present invention;

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure of the support base distribution of the present invention;

[0030] Figure 6 It is a schematic diagram of the three-dimensional structure of the separator of the present invention;

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the pressing mechanism of the present invention;

[0032] Figure 8 It is a schematic diagram of the three-dimensional structure of the partition seat distribution of the present invention;

[0033] Fig. 9 It is a schematic diagram of the electrical relationship structure of the present invention;

[0034] Fig.10 for Figure 2 Schematic cross-section diagram of .

[0035] Explanation of reference numerals in the figure: 1. base; 2. bracket; 3. pressure test box; 31. partition seat; 311. slide slot; 312. round slot; 32. feed port; 321. shielding ring; 322. electric telescopic rod A; 33. collecting tank; 34. air permeable plate; 35. support seat; 4. feeding assembly; 41. rotating seat; 411. material dividing slot; 412. discharge port; 413. LCD screen; 42. fixed cover; 5. drive Moving component; 51, limit groove; 52, limit ring; 53, connecting rod A; 54, reduction motor; 6, cleaning component; 61, material receiving box; 62, scraper; 63, rotating ring; 64, connecting shaft; 7, pressing mechanism; 71, electric telescopic rod B; 72, connecting plate; 73, pressing plate; 74, detection component; 741, connecting rod B; 742, pressure sensor; 743, spring; 75, fixing seat; 8, humidifier. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments of the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0037] In order to solve the problem that the method of feeding pellets one by one in the prior art is cumbersome and the detection time is long, the following scheme is disclosed, specifically: Figures 1 to 10 As shown:

[0038] A method for detecting a pellet compressive strength factor detection device comprises the following steps:

[0039] S1: Select pellet samples from the same batch, weigh them separately, record the mass, and mark them;

[0040] S2: Conduct porosity testing on the batch of pellet samples to obtain a porosity index;

[0041] S3: The eight groups of pellet samples in the batch are subjected to compression testing by a testing device at the same time, and the uniaxial compressive strength of the pellet samples is tested and recorded;

[0042] S4: Clean the crushed pellet samples, feed them again, change a single factor, and achieve batch testing;

[0043] S5: Scan the cross section of the crushed pellet sample and record the composition;

[0044] S6: Analyze the porosity index, compressive strength index and relationship between the mineral phase components and environmental parameters of the pellet sample to determine the factors affecting the compressive strength of the pellet;

[0045] The detection device includes a base 1, a pressure test box 3 on the upper surface of the base 1, four groups of brackets 2 are arranged on the upper surface of the base 1, the outer sides of the pressure test box 3 are fixedly connected to the inner walls of the four groups of brackets 2, a partition seat 31 is arranged inside the pressure test box 3, a feed port 32 and a collecting tank 33 are arranged at both ends of the outer surface of the pressure test box 3, the collecting tank 33 is located directly below the feed port 32, a receiving tank is arranged at the bottom of the feed port 32, and two groups of electric telescopic rods A322 are arranged inside the receiving tank, and the output of the electric telescopic rod A322 A shielding ring 321 is provided at the end, a breathable plate 34 is provided on the inner side of the pressure resistance testing box 3, and the lower surface of the breathable plate 34 is fixedly connected to the upper surface of the feed port 32, a support seat 35 is fixed to the inner wall of the pressure resistance testing box 3, a feeding assembly 4 is provided on the outer side of the pressure resistance testing box 3, a driving assembly 5 is provided below the pressure resistance testing box 3, a cleaning assembly 6 is provided on the outer surface of the pressure resistance testing box 3, a pressing mechanism 7 is provided on the lower surface of the breathable plate 34, and the pressing mechanism 7 is located above the cleaning assembly 6, and a humidifier 8 is provided on the upper surface of the pressure resistance testing box 3.

[0046] The feeding assembly 4 includes a rotating seat 41 rotatably connected to the outside of the pressure test box 3, a fixed cover 42 is fixed to the outside of the pressure test box 3, and the inner wall of the fixed cover 42 is rotatably connected to the outer wall of the rotating seat 41, a material distribution groove 411 is arranged inside the rotating seat 41, and a discharge port 412 is arranged on the inner wall of the rotating seat 41, and the discharge port 412 is communicated with the material distribution groove 411, a liquid crystal display screen 413 is arranged on the outside of the rotating seat 41, and a single-chip microcomputer is arranged between the liquid crystal display screen 413 and the rotating seat 41, the bottom of the discharge port 412 is arranged in an inclined shape, the size of the discharge port 412 is adapted to the size of the feed port 32, the inner wall of the rotating seat 41 is fitted with the outer wall of the pressure test box 3, the cross-section of the fixed cover 42 is arranged in an inverted trapezoid, and the driving assembly 5 includes a fixed The connecting rod A53 on both sides of the rotating seat 41, the base 1 is provided with an installation groove inside, and the installation groove is provided with a reduction motor 54 inside, and the output shaft of the reduction motor 54 is fixedly connected to the connecting rod A53, the lower surface of the connecting rod A53 is fixed with a limiting ring 52, the upper surface of the base 1 is provided with a limiting groove 51, and the limiting groove 51 is rotatably connected to the connecting rod A53, the cleaning component 6 includes a scraper 62 rotatably connected to the bottom of the partition seat 31, the outer side of the scraper 62 is fixed with a rotating ring 63, and the rotating ring 63 is rotatably connected to the inner wall of the pressure resistance detection box 3, the scraper 62 and the partition seat 31 are located in the same vertical air permeable plate plane, the lower surface of the scraper 62 is fixed with a connecting shaft 64, and the lower surface of the connecting shaft 64 is fixedly connected to the upper surface of the connecting rod A53, the collection tank The interior of 33 is slidably connected to the receiving box 61, the upper surface of the scraper 62 is fitted with the lower surface of the partition seat 31, the lower surface of the scraper 62 and the upper surface of the support seat 35 are on the same horizontal plane, the pressing mechanism 7 includes an electric telescopic rod B71 fixed to the lower surface of the air-permeable plate 34, the telescopic end of the electric telescopic rod B71 is fixed with a fixed seat 75, the outer surface of the partition seat 31 is provided with a slide groove 311, the upper surface of the partition seat 31 is provided with a circular groove 312, the pressing mechanism 7 extends into the interior of the partition seat 31, the fixed seat 75 extends out of the interior of the slide groove 311, the outer side of the fixed seat 75 is provided with a connecting plate 72, the lower side of the connecting plate 72 is provided with a lower pressing plate 73, the lower surface of the connecting plate 72 is provided with a detection component 74, the detection component 74 includes a connection plate 72 arranged on the connecting plate A pressure sensor 742 is arranged on the lower surface of 72, a connecting rod B741 is arranged on the upper surface of the lower pressure plate 73, a through hole is arranged on the surface of the connecting plate 72, the connecting rod B741 extends to the top of the connecting plate 72, a spring 743 is sleeved on the outer side of the connecting rod B741, and the spring 743 is located between the connecting plate 72 and the lower pressure plate 73, the connecting rod B741 and the spring 743 are symmetrically arranged about the pressure sensor 742, the feed port 32 and the scraper 62 divide the interior of the pressure test box 3 into eight equal parts, the two sides of the connecting plate 72 are fitted with the partition seat 31, and the end of the connecting plate 72 away from the fixed seat 75 is tightly fitted with the inner wall of the pressure test box 3, 8 groups of air holes of the humidifier are arranged above the air permeable plate 34, and the air holes are all connected with the inner wall of the partition seat 31,Temperature sensors and humidity sensors are respectively arranged on both sides of the top of the inner wall of the pressure test box 3, and a heating plate is arranged in the inner wall of the pressure test box 3.

[0047] In this embodiment, when it is necessary to test the compressive strength, eight integer multiples of pellet samples of the same batch are put into the interior of the rotating seat 41. Under the action of the fixed cover 42 being tilted, the pellet samples are located at the top of the rotating seat 41. The connecting rod A53 and the rotating seat 41 are driven by the reduction motor 54 to rotate, so that the pellet samples inside the fixed cover 42 are divided, so that the pellet samples inside the dividing trough 411 are arranged upward in sequence, and the scraper 62 and the dividing seat 31 are in the same vertical plane. At this time, the discharge port 412 is close to the compressive strength. The outer wall of the test box 3 is rotated, and the electric telescopic rod A322 is started to move the shielding ring 321 into the receiving groove, the feed port 32 is opened, and the reduction motor 54 is started to rotate the rotating seat 41 and the scraper 62 forty-five degrees. When the discharge port 412 is aligned with the feed port 32, eight pellet samples are put into the interior of the compression test box 3 at one time and separated by the separation seat 31. It should be noted that when the scraper 62 rotates with the rotating seat 41, the discharge port 412 will be aligned with the feed port 32 only after the scraper 62 passes the feed port 32. At this time, by starting the electric telescopic rod B71, the connecting plate 72 and the lower pressure plate 73 are driven to descend as a whole. Under the elastic action of the spring 743, the lower pressure plate 73 is subjected to the action received by the pressure sensor 742 for detection, and the relevant data is transmitted to the single-chip microcomputer for processing and analysis through the pressure sensor 742, and displayed on the LCD screen 413. The reduction motor 54 is started again to rotate the rotating seat 41 and the scraper 62 for forty-five degrees. The crushed pellet samples are pushed by the scraper 62 and fall into the inside of the receiving box 61 along the gap between the support seats 35 for centralized collection. At the same time, eight pellet samples enter the inside of the partition seat 31 again for secondary detection. The same method can be used to detect multiple batches of pellet samples. The humidity and temperature are adjusted by the humidifier 8 and the heating plate. The adjustment of a single factor is helpful to improve the reference value of the experiment, realize the analysis of the porosity index, compressive strength index and the relationship between the mineral phase components and environmental parameters of the pellet samples, determine the factors affecting the compressive strength of the pellet ore, realize continuous detection, and accelerate the detection progress.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the compressive strength factor of pellets, characterized in that: The invention comprises a base (1), a pressure test box (3) on the upper surface of the base (1), four groups of brackets (2) being arranged on the upper surface of the base (1), the outer sides of the pressure test box (3) being fixedly connected to the inner walls of the four groups of brackets (2), a partition seat (31) being arranged inside the pressure test box (3), a feed port (32) and a collection tank (33) being arranged at two ends of the outer surface of the pressure test box (3), the collection tank (33) being located directly below the feed port (32), a receiving tank being arranged at the bottom of the feed port (32), two groups of electric telescopic rods A (322) being arranged inside the receiving tank, and an output end of the electric telescopic rod A (322) being arranged A shielding ring (321), a breathable plate (34) is arranged on the inner side of the pressure test box (3), and the lower surface of the breathable plate (34) is fixedly connected to the upper surface of the feed port (32), a support seat (35) is fixed to the inner wall of the pressure test box (3), a feeding assembly (4) is arranged on the outer side of the pressure test box (3), a driving assembly (5) is arranged below the pressure test box (3), a cleaning assembly (6) is arranged on the outer surface of the pressure test box (3), a pressing mechanism (7) is arranged on the lower surface of the breathable plate (34), and the pressing mechanism (7) is located above the cleaning assembly (6), and a humidifier (8) is arranged on the upper surface of the pressure test box (3); The feeding assembly (4) comprises a rotating seat (41) rotatably connected to the outside of the pressure test box (3); a fixed cover (42) is fixed to the outside of the pressure test box (3); and the inner wall of the fixed cover (42) is rotatably connected to the outer wall of the rotating seat (41); a material distribution trough (411) is arranged inside the rotating seat (41); a material discharge port (412) is arranged on the inner wall of the rotating seat (41); and the material discharge port (412) is communicated with the material distribution trough (411); the bottom of the material discharge port (412) is arranged in an inclined shape; the size of the material discharge port (412) is adapted to the size of the material feed port (32); the inner wall of the rotating seat (41) is fitted with the outer wall of the pressure test box (3); a liquid crystal display screen (413) is arranged on the outside of the rotating seat (41); and the liquid crystal display screen (413) and the rotating seat (41) are connected. A single chip microcomputer is arranged between the two parts, the driving assembly (5) comprises a connecting rod A (53) fixed on both sides of the rotating seat (41), a mounting groove is arranged inside the base (1), a reduction motor (54) is arranged inside the mounting groove, and the output shaft of the reduction motor (54) is fixedly connected to the connecting rod A (53), a limit ring (52) is fixed on the lower surface of the connecting rod A (53), a limit groove (51) is arranged on the upper surface of the base (1), and the limit groove (51) is rotatably connected to the connecting rod A (53), a group of air holes of the humidifier (8) are arranged above the air permeable plate (34), and the air holes are all connected to the inner wall of the partition seat (31), a temperature sensor and a humidity sensor are arranged on both sides of the top of the inner wall of the pressure test box (3), and a heating plate is arranged in the inner wall of the pressure test box (3).

2. The device for detecting the compressive strength factor of pellets according to claim 1, characterized in that: The cross-section of the fixed cover (42) is arranged in an inverted trapezoidal shape.

3. The device for detecting the compressive strength factor of pellets according to claim 1, characterized in that: The cleaning assembly (6) comprises a scraper (62) rotatably connected to the bottom of the partition seat (31); a rotating ring (63) is fixed to the outer side of the scraper (62); and the rotating ring (63) is rotatably connected to the inner wall of the pressure resistance testing box (3); the scraper (62) and the partition seat (31) are located in the same vertical plane; a connecting shaft (64) is fixed to the lower surface of the scraper (62); and the lower surface of the connecting shaft (64) is fixedly connected to the upper surface of the connecting rod A (53); and the interior of the collecting tank (33) is slidably connected to the receiving box (61).

4. A device for detecting the compressive strength factor of pellets according to claim 3, characterized in that: The upper surface of the scraper (62) is in contact with the lower surface of the partition seat (31), and the lower surface of the scraper (62) and the upper surface of the support seat (35) are on the same horizontal plane.

5. The device for detecting the compressive strength factor of pellets according to claim 1, characterized in that: The pressing mechanism (7) comprises an electric telescopic rod B (71) fixed on the lower surface of the air permeable plate (34); a fixing seat (75) is fixed to the telescopic end of the electric telescopic rod B (71); a slide groove (311) is provided on the outer surface of the partition seat (31); a circular groove (312) is provided on the upper surface of the partition seat (31); the pressing mechanism (7) extends into the interior of the partition seat (31); the fixing seat (75) extends out of the interior of the slide groove (311); a connecting plate (72) is provided on the outer side of the fixing seat (75); a pressing plate (73) is provided below the connecting plate (72); and a detection component (74) is provided on the lower surface of the connecting plate (72).

6. A device for detecting the compressive strength factor of pellets according to claim 5, characterized in that: The detection assembly (74) includes a pressure sensor (742) arranged on the lower surface of the connecting plate (72), a connecting rod B (741) is arranged on the upper surface of the lower pressure plate (73), a through hole is arranged on the surface of the connecting plate (72), the connecting rod B (741) extends to the top of the connecting plate (72), a spring (743) is sleeved on the outer side of the connecting rod B (741), and the spring (743) is located between the connecting plate (72) and the lower pressure plate (73), the connecting rod B (741) and the spring (743) are symmetrically arranged with respect to the pressure sensor (742), the feed port (32) and the scraper (62) divide the interior of the pressure test box (3) into eight equal parts, the two sides of the connecting plate (72) are in contact with the partition seat (31), and the end of the connecting plate (72) away from the fixed seat (75) is in close contact with the inner wall of the pressure test box (3).

7. A detection method for a pellet compressive strength factor detection device according to any one of claims 1 to 6, characterized in that: The steps include: S1: Select pellet samples from the same batch, weigh them separately, record the mass, and mark them; S2: Conduct porosity testing on the batch of pellet samples to obtain a porosity index; S3: Performing compression test on the eight groups of pellet samples of the batch through the detection device at the same time, detecting the uniaxial compressive strength of the pellet samples and recording the results; S4: Clean the crushed pellet samples, feed them again, change a single factor, and achieve batch testing; S5: Scan the cross section of the crushed pellet sample and record the composition; S6: Analyze the relationship between the porosity index, compressive strength index and mineral phase components of the pellet samples and environmental parameters to determine the factors that affect the compressive strength of the pellets.

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