A screening system for detecting iron concentrate production

Abstract

The application belongs to the technical field of detection, and particularly relates to a screening system for detecting iron concentrate production, which comprises a screening box and a detection box, and a screening assembly and a dredging assembly are arranged in the screening box. The second screening hole or the third screening hole on the second screening cylinder overlaps the first screening hole by rotating the second screening cylinder. When the first screening cylinder and the second screening cylinder rotate, the first screening hole, the second screening hole and the third screening hole on the first screening cylinder and the second screening cylinder rotate into the closed space formed by the partition, the sealing piece and the screening box. The reciprocating member pressurizes the air in the closed space formed by the partition, the sealing piece and the screening box, the compressed air passes through the first screening hole and the second screening hole or the third screening hole stacked with the first screening hole from above the first screening cylinder and the second screening cylinder, and is discharged from the exhaust member.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of detection, and particularly relates to a screening system for detecting iron concentrate powder production. BACKGROUND

[0002] In the iron concentrate powder production process, the detection of the particle size of the iron concentrate powder is a key quality control link. If the particle size distribution of the iron concentrate powder does not meet the requirements, the stability of the subsequent sintering process and the product quality of the sintered ore will be directly affected. At present, the commonly used detection method mainly relies on standard test sieves for analysis. This process usually uses mechanical vibration or manual shaking to make the sample particles pass through a series of sieves with different aperture sizes in turn, so as to divide the powder into several levels according to the particle size. After the screening is completed, the weight of the powder remaining on each sieve surface is weighed, and the mass percentage of each particle size interval is calculated to obtain the quantitative result of the particle size distribution.

[0003] Through retrieval, the Chinese patent with the application number 202120202189.8 discloses an iron concentrate powder screening device, which belongs to the field of iron concentrate powder processing equipment. The device includes a screening cylinder with a plurality of screening holes in the side wall, and a box body. The side wall of the box body is provided with a receiving port, and the bottom wall of the box body away from the receiving port is provided with a first discharge port and a second discharge port. The first discharge port is located on the side of the second discharge port close to the receiving port. The one end surface of the screening cylinder is provided with a feeding port, and the other end surface is provided with a discharging port. The feeding port is located on the end of the box body close to the receiving port, and the discharging port is located directly above the second discharge port. A driving motor is detachably connected to the screening cylinder to drive the screening cylinder to rotate around its own axis. This application has the effect of facilitating the screening of iron concentrate powder with different particle sizes. However, it still has the following defects:

[0004] 1. During the screening process, different particle sizes of iron concentrate powder are screened by replacing the screening cylinder. However, in actual application, replacing the screening cylinder is a relatively tedious step. Moreover, there are many types of iron concentrate powder particle sizes, and replacing the screening cylinder for different sizes of iron concentrate powder results in low screening efficiency.

[0005] 2. During the screening process, the screening holes of the screening cylinder are easily blocked due to the different particle sizes of the iron concentrate powder, which seriously affects the screening quality of the iron concentrate powder. SUMMARY

[0006] The purpose of the present application is to overcome the deficiencies in the prior art, provide a screening system for iron concentrate production detection, by rotating the second screening cylinder to adjust the second screening hole or the third screening hole on the second screening cylinder to overlap the first screening hole, thereby screening out iron concentrate of different particle sizes, when the first screening cylinder and the second screening cylinder rotate, the first screening hole, the second screening hole and the third screening hole on the first screening cylinder and the second screening cylinder rotate into the closed space formed by the partition, the sealing piece and the screening box, the reciprocating member reciprocates to pressurize the air in the closed space formed by the partition, the sealing piece and the screening box, the compressed air passes through the first screening hole and the second screening hole or the third screening hole superimposed with the first screening hole from above the first screening cylinder and the second screening cylinder to the inside of the first screening cylinder and the second screening cylinder, and is discharged from the exhaust member.

[0007] In order to achieve the above purpose, the technical scheme adopted by the present application is:

[0008] A screening system for iron concentrate production detection, comprising a screening box and a detection box, the screening box is arranged on the top of the detection box, and the screening box is communicated with the detection box, an electronic scale and a guide piece are arranged in the inside of the detection box, the guide piece is located at the connection between the screening box and the detection box, and the guide piece is used for guiding the screened iron concentrate, a screening assembly and a dredging assembly matched with the screening assembly are arranged in the inside of the screening box;

[0009] The screening assembly comprises a first screening cylinder, a second screening cylinder and a driving piece, the second screening cylinder is located in the inside of the first screening cylinder, the outer wall of the second screening cylinder is attached to the inner wall of the first screening cylinder, and the first screening cylinder and the second screening cylinder can rotate relatively, a plurality of first screening holes are uniformly opened on the first screening cylinder, a plurality of second screening holes and third screening holes same as the first screening holes are opened on the second screening cylinder, the second screening hole or the third screening hole on the second screening cylinder is adjusted to overlap the first screening hole by rotating the second screening cylinder, the driving piece is arranged on the top of the detection box, and the driving piece is used for driving the first screening cylinder and the second screening cylinder to rotate;

[0010] The dredging assembly comprises a reciprocating member, an air inlet member, an air outlet member, a partition member and a sealing member, the partition member is symmetrically arranged on both sides of the center line of the first screening drum, and is installed on the inner wall of the screening box, the partition member is attached to the outer wall of the first screening drum, the partition member can rotate relative to the first screening drum, the sealing member is arranged in the interior of the second screening drum, the sealing member is attached to the inner wall of the second screening drum, and the second screening drum can rotate relative to the sealing member, a closed space is formed between the partition member, the sealing member and the inner wall of the screening box, the reciprocating member is arranged outside the screening box and is used for pressurizing the air in the closed space, the air inlet member is arranged on the top of the screening box and is in communication with the screening box, and the air outlet member is arranged on one side of the screening box and is located on the top of the sealing member and is in communication with the screening box.

[0011] When the first screening drum and the second screening drum rotate, the first screening holes, the second screening holes and the third screening holes on the first screening drum and the second screening drum rotate into the closed space formed by the partition member, the sealing member and the screening box, the reciprocating member reciprocates to pressurize the air in the closed space formed by the partition member, the sealing member and the screening box, the compressed air passes through the first screening holes and the second screening holes or the third screening holes superimposed with the first screening holes from above the first screening drum and the second screening drum to the interior of the first screening drum and the second screening drum, and is discharged from the air outlet member.

[0012] Preferably, the partition member comprises a partition plate and a first sealing plate, the partition plate is symmetrically arranged on both sides of the first screening drum and the second screening drum, the partition plate is arranged obliquely, one end of the partition plate is connected to the inner wall of the screening box, and the other end of the partition plate is in contact with the outer wall of the first screening drum, the first sealing plate is symmetrically arranged on both sides of the partition plate, and the first sealing plate is located between the first screening drum and the inner wall of the screening box and is attached to the outer wall of the first screening drum.

[0013] The sealing member comprises a bottom plate, second sealing plates arranged on both sides of the bottom plate and inclined plates located at both ends of the bottom plate, the inclined angle of the inclined plate is the same as that of the partition plate, the second sealing plate is in contact with the inner wall of the second screening drum, and a avoiding groove is formed in the side plate close to the fixed shaft, the bottom plate is fixedly installed at the end of the fixed shaft, a closed space is formed between the partition member, the sealing member and the inner wall of the screening box, and when the reciprocating member compresses the air in the closed space, the compressed air passes through the first screening holes and the third screening holes or the second screening holes matched with the first screening holes in the closed space, so that the first screening holes and the third screening holes or the second screening holes matched with the first screening holes are dredged.

[0014] Preferably, the reciprocating motion piece comprises a support, a motor, a piston cylinder, a piston head, a connecting pipe, a piston rod and a lifting rod, the support is arranged on one side of the screening box, the motor is fixedly installed on the support, a rotating arm is arranged on the output shaft of the motor, the piston cylinder is symmetrically arranged on both sides of the screening box and is fixedly installed on the screening box, the piston head is arranged in the piston cylinder, the piston rod is installed on the piston head and extends to the bottom of the piston cylinder, the connecting pipe is communicated with the piston cylinder and the screening box at both ends, a connecting rod is arranged on the piston rod, the lifting rod is connected with the connecting rods on the piston rods on both sides of the screening box at both ends, a strip-shaped hole is formed in the middle of the lifting rod, a sliding block is arranged in the strip-shaped hole, and the end of the rotating arm is rotatably installed on the sliding block.

[0015] Preferably, the air inlet piece comprises an air inlet cylinder, a filter cylinder, a first spring, a first blocking plate and a first sliding rod, the air inlet cylinder is arranged on the top of the screening box and is communicated with the screening box, a first mounting rod is arranged in the air inlet cylinder, the filter cylinder is sleeved on the air inlet cylinder, the first sliding rod is connected with the filter cylinder and the first blocking plate at both ends, the first spring is sleeved on the first sliding rod and located between the first mounting rod and the filter cylinder, and the arrangement of the air inlet piece can deliver air to the closed space formed between the partition piece, the sealing piece and the inner wall of the screening box, so that the air in the closed space is always sufficient and has enough impact force in the process of compressing air to unblock the first screening hole and the third screening hole matched with the first screening hole or the second screening hole.

[0016] Preferably, the air inlet piece comprises an air inlet cylinder, a filter cylinder, a first spring, a first blocking plate and a first sliding rod, the air inlet cylinder is arranged on the top of the screening box and is communicated with the screening box, a first mounting rod is arranged in the air inlet cylinder, the filter cylinder is sleeved on the air inlet cylinder, the first sliding rod is connected with the filter cylinder and the first blocking plate at both ends, the first spring is sleeved on the first sliding rod and located between the first mounting rod and the filter cylinder, and the arrangement of the air inlet piece can deliver air to the closed space formed between the partition piece, the sealing piece and the inner wall of the screening box, so that the air in the closed space is always sufficient and has enough impact force in the process of compressing air to unblock the first screening hole and the third screening hole matched with the first screening hole or the second screening hole.

[0017] Preferably, a feeding pipe is arranged at the end of the second screening drum, a rotating disc is further arranged at the end of the feeding pipe, a sleeve shaft is arranged at the end of the first screening drum, the sleeve shaft is sleeved on the feeding pipe, a locking piece is arranged on the sleeve shaft, and an unlocking piece is arranged on the rotating disc and matched with the locking piece;

[0018] The screening assembly further comprises a fixed shaft fixedly installed on the inner wall of the screening box, and the first screening drum and the second screening drum are both rotatably installed on the fixed shaft. The feeding pipe is arranged to facilitate the feeding of the material to be screened into the second screening drum, the rotating disc is arranged to facilitate the rotation of the second screening drum and the relative sliding of the first screening drum, and the second screening hole or the third screening hole is matched with the first screening hole according to the need, so that the iron concentrate powder with different particle sizes is screened out.

[0019] Preferably, the locking piece comprises a mounting block and a locking column, a mounting groove is formed in the mounting block, a third spring and a moving block are arranged in the mounting groove, the moving block is slidably arranged in the mounting groove, the third spring is used to provide power for the movement of the moving block along the mounting groove, and the locking column is fixedly installed on the moving block. A limiting hole is formed in the rotating disc, and the locking column is matched with the limiting hole.

[0020] The unlocking piece comprises a fixed column, a foolproof ring, a jacking rod, a pressing plate and a stop block, the fixed column is fixedly installed on the rotating disc, the foolproof ring is arranged at the limiting hole, the center of the foolproof ring coincides with the center of the limiting hole, the jacking rod is fixedly installed on the pressing plate and located in the foolproof ring, and the stop block is fixedly installed at the end of the fixed column. The pressing plate is slidably matched with the fixed column, the pressing plate drives the fixed column to move to the foolproof ring until the locking column is jacked out of the limiting hole. The locking piece is used to fix the first screening drum and the second screening drum together, so that the second screening drum rotates together with the first screening drum in the process of the rotation of the first screening drum driven by the driving piece, thereby achieving the purpose of screening the iron concentrate powder. The unlocking piece is used to release the restriction of the locking piece on the second screening drum, so that the second screening hole or the third screening hole on the second screening drum can be adjusted to coincide with the first screening hole, thereby achieving the purpose of screening the iron concentrate powder with different particle sizes.

[0021] Preferably, the driving piece comprises a driving motor, a backing plate, a first pulley, a second pulley and a belt, the second pulley is fixedly installed on the sleeve shaft, the backing plate is fixedly installed on the top of the detection box, the driving motor is fixedly installed on the backing plate, the first pulley is fixedly installed on the output shaft of the driving motor, the driving motor drives the first pulley to rotate, the first pulley drives the second pulley to rotate through the belt, and the driving piece is used to drive the first screening drum and the second screening drum to rotate, thereby achieving the purpose of stirring the iron concentrate powder and improving the screening efficiency of the iron concentrate powder.

[0022] Preferably, a vertical rod is arranged at the bottom of the partition, the vertical rod is symmetrically arranged on both sides of the center line of the partition, a stirring plate is arranged at the bottom of the vertical rod, the bottom of the stirring plate is in contact with the inner wall of the second screening cylinder, the vertical rod and the stirring plate can stir the iron concentrate powder, prevent the iron concentrate powder from adhering to the inner wall of the second screening cylinder, and improve the screening efficiency of the iron concentrate powder.

[0023] Preferably, the guide piece comprises a rotating shaft, a rotating rod, a guide plate and a locking bolt, the rotating shaft is rotatably arranged on the side wall of the detection box and extends to the outside of the detection box, the guide plate is fixedly arranged on the rotating shaft, the rotating rod is arranged outside the detection box and is fixedly arranged on the rotating shaft, and the locking bolt is threadedly arranged on the rotating rod; a plurality of fixing grooves are formed in the side wall of the detection box, the fixing grooves are circularly arranged around the rotating shaft with the center of the rotating shaft as the center, and the fixing grooves are matched with the locking bolt; the guide piece can convey the iron concentrate powder with different particle sizes to different electronic scales in the detection box, so that the iron concentrate powder with different particle sizes can be weighed.

[0024] Preferably, an arc-shaped guide plate is arranged on the outer wall of the detection box, the arc-shaped guide plate has the center of the rotating shaft as the center, a guide groove is formed in the rotating rod, and the guide groove is matched with the arc-shaped guide plate in sliding mode; the arc-shaped guide plate can guide the rotating rod and limit the rotating rod, prevent the rotating rod from shaking during rotation, and ensure the safety of the rotating rod during work.

[0025] Preferably, limiting grooves are formed in the opposite inner walls of the screening box, and the limiting grooves are matched with the ends of the guide plate; the limiting grooves are used for limiting the ends of the guide plate, preventing the iron concentrate powder from sliding along the inner wall of the screening box into the detection box, ensuring that the iron concentrate powder can fall onto the guide plate and be conveyed to the designated electronic scale under the action of the guide plate.

[0026] Preferably, a stirring block is arranged at the end of the rotating rod, the stirring block is used for stirring the rotating rod and adjusting the guide plate.

[0027] The present application has the following advantages:

[0028] 1) This device adjusts the second screening hole or the third screening hole on the second screening cylinder to overlap with the first screening hole by rotating the second screening cylinder, thereby screening out iron concentrate of different particle sizes. When the first screening cylinder and the second screening cylinder rotate, the first screening hole, the second screening hole and the third screening hole on the first screening cylinder and the second screening cylinder rotate into the closed space formed by the separator, the sealing element and the screening box. The reciprocating motion component pressurizes the air in the closed space formed by the separator, the sealing element and the screening box. The compressed air passes through the first screening hole and the second screening hole or the third screening hole superimposed on the first screening hole from the top of the first screening cylinder and the second screening cylinder and comes into the interior of the first screening cylinder and the second screening cylinder, and is discharged from the exhaust component.

[0029] 2) The partition, sealing component and inner wall of the screening box of this device form a closed space, which ensures that when the reciprocating moving part compresses the air in the closed space, the compressed air will pass through the first screening hole and the third screening hole or the second screening hole that cooperates with the first screening hole in the closed space, so as to achieve the purpose of clearing the first screening hole and the third screening hole or the second screening hole that cooperates with the first screening hole.

[0030] 3) The reciprocating motion of this device can reciprocate to compress the air in the sealed space formed between the separator, the sealing component and the inner wall of the screening box, ensuring that the compressed air passes through the first screening hole and the third or second screening hole that cooperates with the first screening hole in the sealed space, and is finally discharged from the exhaust component, thus achieving the purpose of the first screening hole and the third or second screening hole that cooperates with the first screening hole.

[0031] 4) The air intake component of this device can deliver air to the space between the separator, the seal and the inner wall of the screening box to form a closed space, ensuring that the air in the closed space is always sufficient, and ensuring that the air has enough impact force to clear the first screening hole and the third or second screening hole that cooperates with the first screening hole during the subsequent air compression process.

[0032] 5) The exhaust system of this device ensures that compressed air can pass through the first screening hole and the third or second screening hole that cooperates with the first screening hole from the outside of the first screening cylinder and the second screening cylinder, and enter the interior of the first screening cylinder and the second screening cylinder, thereby achieving the purpose of unblocking the first screening hole and the third or second screening hole that cooperates with the first screening hole.

[0033] 6) The feed pipe of this device is designed to facilitate the conveying of materials to be screened into the interior of the second screening cylinder. The rotating disc is designed to facilitate the relative sliding between the second screening cylinder and the first screening cylinder. It is also designed to allow the second or third screening hole to be matched with the first screening hole as needed, thereby screening out iron concentrate of different particle sizes.

[0034] 7) The locking component of this device is used to fix the first screening cylinder and the second screening cylinder together, ensuring that the second screening cylinder rotates along with the first screening cylinder as the drive component drives it to rotate, thereby achieving the purpose of screening iron concentrate. The unlocking component is used to release the restriction of the locking component on the second screening cylinder, thereby allowing the second screening hole or the third screening hole on the second screening cylinder to coincide with the first screening hole, achieving the purpose of screening iron concentrate particles of different sizes.

[0035] 8) The drive motor of this device drives the first pulley to rotate, and the first pulley drives the second pulley to rotate through the belt. The drive unit is used to drive the first screening cylinder and the second screening cylinder to rotate, thereby driving the iron concentrate to turn over and improving the screening efficiency of iron concentrate.

[0036] 9) The uprights and material-pushing plates of this device can be used to push the iron concentrate powder, preventing the iron concentrate powder from sticking to the inner wall of the second screening cylinder, thus improving the screening efficiency of the iron concentrate powder.

[0037] 10) The guide components of this device can transport iron concentrate of different particle sizes to different electronic scales in the testing box, thus facilitating the weighing of iron concentrate of different particle sizes. The arc-shaped guide plate can guide the rotating rod and also limit the rotation of the rotating rod to prevent it from shaking during rotation, ensuring the safety of the rotating rod during operation. The limiting groove is used to limit the end of the guide plate to prevent the iron concentrate from sliding down the inner wall of the screening box into the testing box, ensuring that all the iron concentrate falls onto the guide plate and is transported to the designated electronic scale under the action of the guide plate. Attached Figure Description

[0038] Appendix Figure 1 This is a schematic diagram of the structure of the present invention.

[0039] Appendix Figure 2 This is a side view of the present invention.

[0040] Appendix Figure 3 This is the present invention. Figure 2 Cross-sectional view along the BB direction.

[0041] Appendix Figure 4 This is a schematic diagram of the structure of the sealing element and the separator in this invention.

[0042] Appendix Figure 5 This is a schematic diagram of the reciprocating motion component in this invention.

[0043] Appendix Figure 6 This is the present invention. Figure 3 Enlarged view of point A in the middle.

[0044] Figure 1 is a schematic view of the internal structure of the air inlet member in the present application. Figure 7

[0045] Figure 2 is a schematic view of the internal structure of the air outlet member in the present application. Figure 8

[0046] Figure 3 is a schematic view of the structure of the first and second screening drums in the present application. Figure 9

[0047] Figure 4 is a schematic view of the mounting structure of the guide member in the present application. Figure 10

[0048] Figure 5 is a schematic view of the structure of the locking member in the present application. Figure 11 Figure 9 Figure 6 is an enlarged view of D in the present application.

[0049] Figure 7 is an enlarged view of B in the present application. Figure 12 Figure 1 Figure 8 is an enlarged view of C in the present application.

[0050] Figure 9 is a sectional view of the locking member in the present application. Figure 13 Figure 10 Figure 10 is a schematic view of the structure of the unlocking member in the present application.

[0051] Figure 11 is a schematic view of the structure of the detection box in the present application. Figure 14 Figure 12 is a schematic view of the structure of the guide member in the present application.

[0052] Figure 15 Figure 13 is a schematic view of the structure of the unlocking member in the present application.

[0053] Figure 1 is a schematic view of the internal structure of the air inlet member in the present application.

[0054] 1. detection box;

[0055] 2. guide member; 201. rotating rod; 202. guide groove; 203. push block; 204. locking bolt; 205. fixing groove; 206. arc-shaped guide plate; 207. rotating shaft; 208. material guide plate;

[0056] 3. screening box; 301. limiting groove;

[0057] 4. dredging assembly; 401. reciprocating member; 402. air outlet member; 403. air inlet member; 404. partition member; 405. sealing member;

[0058] 406. first sealing plate; 407. partition plate;

[0059] 408. second sealing plate; 409. inclined plate; 4010. bottom plate;

[0060] ​​​​​​​​4011, motor; 4012, lifting rod; 4013, strip-shaped hole; 4014, rotating arm; 4015, sliding block; 4016, connecting rod; 4017, piston rod; 4018, piston cylinder; 4019, support; 4020, connecting pipe; 4021, piston head;

[0061] 4022, sliding rod; 4023, air inlet cylinder; 4024, filter cylinder; 4025, first sliding rod; 4026, first spring; 4027, first mounting rod; 4028, first blocking plate;

[0062] 4029, air outlet cylinder; 4030, second blocking plate; 4031, second mounting rod; 4032, second sliding rod; 4033, second spring; 4034, baffle; 4035, limiting rod; 4036, groove;

[0063] 5, screening assembly; 501, sleeve shaft; 502, first screening cylinder; 503, first screening hole; 504, fixed shaft; 505, second screening cylinder; 506, second screening hole; 507, third screening hole; 508, feeding pipe; 509, rotating disc;

[0064] 5010, backing plate; 5011, driving motor; 5012, belt; 5013, second pulley; 5014, first pulley;

[0065] 5015, limiting hole; 5016, vertical rod; 5017, stirring plate;

[0066] 6, locking piece; 601, mounting block; 602, mounting groove; 603, third spring; 604, moving block; 605, locking column;

[0067] 7, unlocking piece; 701, pressing plate; 702, ejector rod; 703, foolproof ring; 704, fixed column; 705, stop block;

[0068] 8, electronic scale. DETAILED DESCRIPTION

[0069] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0070] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0071] As shown in Figure 1 , Figure 3 , a screening system for detecting fine iron powder, comprising a screening box 3 and a detection box 1, the screening box 3 is arranged at the top of the detection box 1, and the screening box 3 is communicated with the detection box 1, an electronic scale 8 and a guide 2 are arranged in the inside of the detection box 1, the guide 2 is located at the connection of the screening box 3 and the detection box 1, and the guide 2 is used for guiding the screened fine iron powder, a screening assembly 5 and a dredging assembly 4 matched with the screening assembly 5 are arranged in the inside of the screening box 3; the screening assembly 5 is arranged to screen different size fine iron powder particles, and the dredging assembly 4 is arranged to dredge the screening assembly 5, so as to ensure the normal work of the screening assembly 5.

[0072] The electronic scale 8 is arranged to weigh the screened fine iron powder, thereby improving the detection efficiency of the fine iron powder.

[0073] In this embodiment, as shown in Figure 9 , the screening assembly 5 comprises a first screening cylinder 502, a second screening cylinder 505 and a driving member, the second screening cylinder 505 is located in the inside of the first screening cylinder 502, the outer wall of the second screening cylinder 505 is attached to the inner wall of the first screening cylinder 502, and the first screening cylinder 502 and the second screening cylinder 505 can rotate relative to each other, a plurality of first screening holes 503 are uniformly opened on the first screening cylinder 502, a plurality of second screening holes 506 and third screening holes 507 which are the same as the first screening holes 503 are opened on the second screening cylinder 505, the second screening holes 506 or the third screening holes 507 on the second screening cylinder 505 are adjusted to overlap with the first screening holes 503 by rotating the second screening cylinder 505, and the driving member is arranged at the top of the detection box 1, and is used to drive the first screening cylinder 502 and the second screening cylinder 505 to rotate.

[0074] The first screening cylinder 502 and the second screening cylinder 505 are arranged to screen fine iron powder particles of different sizes without replacing the screening cylinder, and the driving member drives the first screening cylinder 502 and the second screening cylinder 505 to rotate, which can prevent the fine iron powder from adhering to the inner wall of the second screening cylinder 505, and also can achieve the purpose of stirring the fine iron powder, thereby improving the screening efficiency of the fine iron powder.

[0075] In this embodiment, as shown in Figure 2 , Figure 3 The dredging assembly 4 includes a reciprocating member 401, an air inlet member 403, an air outlet member 402, a partition member 404, and a sealing member 405. The partition member 404 is symmetrically arranged on both sides of the center line of the first screening drum 502 and is installed on the inner wall of the screening box 3. The partition member 404 is in close contact with the outer wall of the first screening drum 502 and can rotate relative to the first screening drum 502. The sealing member 405 is arranged inside the second screening drum 505 and is in close contact with the inner wall of the second screening drum 505. The second screening drum 505 can rotate relative to the sealing member 405. A closed space is formed between the partition member 404, the sealing member 405, and the inner wall of the screening box 3. The reciprocating member 401 is arranged outside the screening box 3 and is used to pressurize the air in the closed space. The air inlet member 403 is arranged on the top of the screening box 3 and is in communication with the screening box 3. The air outlet member 402 is arranged on one side of the screening box 3 and is located on the top of the sealing member 405. The air outlet member 402 is in communication with the screening box 3.

[0076] When the first screening drum 502 and the second screening drum 505 rotate, the first screening holes 503, the second screening holes 506, and the third screening holes 507 on the first screening drum 502 and the second screening drum 505 rotate into the closed space formed by the partition member 404, the sealing member 405, and the screening box 3. The reciprocating member 401 reciprocates to pressurize the air in the closed space formed by the partition member 404, the sealing member 405, and the screening box 3. The compressed air passes through the first screening holes 503 and the second screening holes 506 or the third screening holes 507 that overlap the first screening holes 503 from above the first screening drum 502 and the second screening drum 505 to the inside of the first screening drum 502 and the second screening drum 505 and is discharged from the air outlet member 402.

[0077] In this embodiment, as shown in Figure 4As shown, the partition 404 comprises a partition plate 407 and a first sealing plate 406, the partition plate 407 is symmetrically arranged on both sides of the first screening drum 502 and the second screening drum 505, the partition plate 407 is arranged obliquely, one end of the partition plate 407 is connected with the inner wall of the screening box 3, and the other end of the partition plate 407 is in contact with the outer wall of the first screening drum 502, the first sealing plate 406 is symmetrically arranged on both sides of the partition plate 407, and the first sealing plate 406 is located between the first screening drum 502 and the inner wall of the screening box 3, and the first sealing plate 406 is attached to the outer wall of the first screening drum 502; the first sealing plate 406 can block the gap between the first screening drum 502 and the inner wall of the screening box 3, prevent compressed air from flowing out of the gap between the first screening drum 502 and the inner wall of the screening box 3, affect the quality of the first screening hole 503, the second screening hole 506 and the third screening hole 507, and ensure that the compressed air can clear the first screening hole 503, the second screening hole 506 and the third screening hole 507.

[0078] In order to prevent air leakage between the outer wall of the first screening drum 502 and the first sealing plate 406, a rubber pad can also be arranged between the outer wall of the first screening drum 502 and the first sealing plate 406, which can maximize the loss of compressed air without affecting the normal rotation of the first screening drum 502, and ensure the quality of the first screening hole 503, the second screening hole 506 and the third screening hole 507.

[0079] In this embodiment, as shown in the figure, Figure 4 The sealing member 405 comprises a bottom plate 4010, a second sealing plate 408 arranged on both sides of the bottom plate 4010, and an inclined plate 409 located at both ends of the bottom plate 4010, the inclination angle of the inclined plate 409 is the same as that of the partition plate 407, the second sealing plate 408 is in contact with the inner wall of the second screening drum 505, and a avoiding groove (not shown in the figure) is opened on the side plate close to the fixed shaft 504, the bottom plate 4010 is fixedly installed at the end of the fixed shaft 504, a closed space is formed between the partition 404, the sealing member 405 and the inner wall of the screening box 3, so that when the reciprocating member 401 compresses the air in the closed space, the compressed air can pass through the first screening hole 503 and the third screening hole 507 or the second screening hole 506 matched with the first screening hole 503 in the closed space, so as to achieve the purpose of clearing the first screening hole 503 and the third screening hole 507 or the second screening hole 506 matched with the first screening hole 503.

[0080] The inclined plate 409 is designed to cooperate with the partition plate 407 to ensure that the gas entering the interior from the outside of the first screening cylinder 502 and the second screening cylinder 505 flows out between the inclined plate 409 and the partition plate 407, thus ensuring the smooth flow of the device through the first screening hole 503, the second screening hole 506, and the third screening hole 507.

[0081] To prevent the loss of compressed air, rubber pads can be installed at the connection between the inclined plate 409 and the second screening cylinder 505, and at the connection between the partition plate 407 and the inner wall of the first screening cylinder 502, to ensure that the compressed air can clear the first screening hole 503 and the third screening hole 507 or the second screening hole 506 that cooperates with the first screening hole 503.

[0082] In this embodiment, as Figure 5 As shown, the reciprocating motion component 401 includes a support 4019, a motor 4011, a piston cylinder 4018, a piston head 4021, a connecting pipe 4020, a piston rod 4017, and a lifting rod 4012. The support 4019 is disposed on one side of the screening box 3. The motor 4011 is fixedly mounted on the support 4019, and a rotating arm 4014 is disposed on the output shaft of the motor 4011. The piston cylinders 4018 are symmetrically disposed on both sides of the screening box 3 and are fixedly mounted on the screening box 3. The piston head 4021 is disposed inside the piston cylinder 4018, and the piston rod 4017 is mounted on the piston head 4021 and extends to the bottom of the piston cylinder 4018. The two ends of the connecting pipe 4020 are respectively connected to the piston cylinder 4018 and the screening box 3. A connecting rod 4012 is disposed on the piston rod 4017. The connecting rod 4016 connects the two ends of the lifting rod 4012 to the connecting rods 4016 on the piston rods 4017 on both sides of the screening box 3. A strip hole 4013 is opened in the middle of the lifting rod 4012, and a slider 4015 is provided in the strip hole 4013. The end of the rotating arm 4014 is rotatably mounted on the slider 4015. The reciprocating motion component 401 can reciprocate to compress the air in the sealed space formed between the separator 404, the sealing component 405 and the inner wall of the screening box 3, ensuring that the compressed air passes through the first screening hole 503 and the third screening hole 507 or the second screening hole 506 that cooperates with the first screening hole 503 in the sealed space, and is finally discharged from the exhaust component 402, thereby achieving the purpose of the first screening hole 503 and the third screening hole 507 or the second screening hole 506 that cooperates with the first screening hole 503.

[0083] The motor 4011 drives the rotating arm 4014 to rotate. The rotation of the rotating arm 4014 causes the slider 4015 to slide along the strip hole 4013 on the lifting rod 4012, thereby driving the lifting rod 4012 to move up and down. During the up and down movement of the lifting rod 4012, it will drive the piston rod 4017 to push the piston head 4021 to move up and down reciprocally in the piston cylinder 4018.

[0084] When the piston head 4021 moves upward in the piston cylinder 4018, it compresses the air in the piston cylinder 4018 into a sealed space formed between the separator 404, the seal 405, and the inner wall of the screening box 3, thereby achieving the purpose of compressing the air in the sealed space. When the air in the sealed space is compressed to the extent that it can move, the exhaust device 402 will automatically open. In order to discharge the gas in the sealed space, the compressed air will enter the interior of the first screening cylinder 502 and the second screening cylinder 505 from the outside of the first screening cylinder 502 and the second screening cylinder 505 through the first screening hole 503 and the second screening hole 506 or the third screening hole 507 that cooperates with the first screening hole 503, thereby clearing the first screening hole 503 and the second screening hole 506 or the third screening hole 507 that cooperates with the first screening hole 503, and finally being discharged from the exhaust device 402.

[0085] When the piston head 4021 moves downward, the sealed space becomes negative pressure. Under the action of atmospheric pressure, the air intake 403 will open, and air will enter the sealed space through the air intake 403, ensuring that the air in the sealed space is always full, thus ensuring the dredging quality of the first screening hole 503 and the second screening hole 506 or the third screening hole 507 that cooperates with the first screening hole 503.

[0086] In this embodiment, as Figure 7 As shown, the air intake component 403 includes an air intake cylinder 4023, a filter cylinder 4024, a first spring 4206, a first sealing plate 4028, and a first sliding rod 4025. The air intake cylinder 4023 is located on top of the screening box 3 and is connected to the screening box 3. A first mounting rod 4027 is provided inside the air intake cylinder 4023. The filter cylinder 4024 is sleeved on the air intake cylinder 4023. The two ends of the first sliding rod 4025 are respectively connected to the filter cylinder and the first sealing plate 4028. The first spring 4026... 206 is sleeved on the first slide rod 4025, and the first spring 4206 is located between the first mounting rod 4027 and the filter cylinder 4024. The air inlet 403 can deliver air to the space between the separator 404, the seal 405 and the inner wall of the screening box 3 to form a closed space, ensuring that the air in the closed space is always sufficient, and ensuring that the air has sufficient impact force to clear the first screening hole 503 and the third screening hole 507 or the second screening hole 506 that cooperates with the first screening hole 503.

[0087] When the negative pressure is formed in the closed space between the partition 404, the sealing member 405 and the inner wall of the screening box 3, the atmospheric pressure will drive the filter cylinder 4024 to move towards the side close to the screening box 3, and the filter cylinder 4024 will compress the first spring 4206 in the process of moving, and at the same time, the first blocking plate 4028 will move downward until a gap is formed between the first blocking plate 4028 and the air inlet cylinder 4023, so that air can be transported from the air inlet cylinder 4023 to the closed space through the filter cylinder 4024. When the pressure in the closed space is equal to the atmospheric pressure, the spring returns to drive the filter cylinder 4024 and the first blocking plate 4028 to reset, so as to achieve the purpose of blocking the air inlet cylinder 4023 again.

[0088] Among them, the setting of the filter cylinder 4024 can filter out the impurities in the air, prevent the impurities in the air from blocking the first screening hole 503 and the third screening hole 507 or the second screening hole 506 matched with the first screening hole 503 again, and ensure the dredging quality of the device to the first screening hole 503 and the third screening hole 507 or the second screening hole 506 matched with the first screening hole 503.

[0089] As shown in Figure 7 In order to prevent the filter cylinder 4024 and the first blocking plate 4028 from rotating in the process of working, sliding rods 4022 are further arranged on both sides of the first sliding rod 4025, both ends of the sliding rod 4022 are connected with the filter cylinder 4024 and the first blocking plate 4028 respectively, and the sliding rod 4022 is in sliding cooperation with the first mounting rod 4027.

[0090] In this embodiment, as shown in Figure 8As shown, the exhaust member 402 comprises an exhaust cylinder 4029, a second spring 4033, a second blocking plate 4030 and a second sliding rod 4032, the exhaust cylinder 4029 is arranged on the side wall of the screening box 3 and communicates with the screening box 3, a second mounting rod 4031 is arranged in the exhaust cylinder 4029, the second sliding rod 4032 is slidingly arranged on the second mounting rod 4031, one end of the second sliding rod 4032 is fixedly arranged on the second blocking plate 4030, a baffle 4034 is fixedly arranged on the other end of the second sliding rod 4032, the second spring 4033 is sleeved on the second sliding rod 4032 and located between the baffle 4034 and the second mounting rod 4031, the arrangement of the exhaust member 402 ensures that the compressed air can pass through the first screening hole 503 and the third screening hole 507 matched with the first screening hole 503 or the second screening hole 506 from the outside of the first screening cylinder 502 and the second screening cylinder 505 to the inside of the first screening cylinder 502 and the second screening cylinder 505, so as to achieve the purpose of dredging the first screening hole 503 and the third screening hole 507 matched with the first screening hole 503 or the second screening hole 506.

[0091] When the reciprocating member 401 compresses the air in the closed space formed between the partition member 404, the sealing member 405 and the inner wall of the screening box 3, when reaching a certain pressure value, the air in the closed space will push the second blocking plate 4030 outward, so that the second blocking plate 4030 moves away from the screening box 3, until a gap for air flow is formed between the second blocking plate 4030 and the screening cylinder, the compressed air will pass through the first screening hole 503 and the third screening hole 507 matched with the first screening hole 503 or the second screening hole 506 from the outside of the first screening cylinder 502 and the second screening cylinder 505 to the inside of the first screening cylinder 502 and the second screening cylinder 505 and finally discharged from the exhaust cylinder 4029, when the compressed air passes through the first screening hole 503 and the third screening hole 507 matched with the first screening hole 503 or the second screening hole 506, the first screening hole 503 and the third screening hole 507 matched with the first screening hole 503 or the second screening hole 506 will be dredged.

[0092] When the pressure in the closed space formed between the partition member 404, the sealing member 405 and the inner wall of the screening box 3 returns to normal, the second blocking plate 4030 will be reset under the action of the second spring 4033, until the second blocking plate 4030 blocks the exhaust cylinder 4029 again.

[0093] The reciprocating member 401 cooperates with the air inlet member 403 and the air outlet member 402 to continuously clear the first screening holes 503, the second screening holes 506 and the third screening holes 507 on the first screening drum 502 and the second screening drum 505, thereby ensuring the screening efficiency of the device.

[0094] To prevent the second blocking plate 4030 from sliding during operation, a limiting rod 4035 is arranged on the second blocking plate 4030, and a groove 4036 is formed on the inner wall of the air outlet cylinder 4029, the limiting rod 4035 and the groove 4036 being in sliding cooperation.

[0095] In this embodiment, as shown in Figure 9 , a feeding pipe 508 is arranged at the end of the second screening drum 505, a rotating disc 509 is arranged at the end of the feeding pipe 508, a sleeve shaft 501 is arranged at the end of the first screening drum 502, the sleeve shaft 501 is sleeved on the feeding pipe 508, the feeding pipe 508 is arranged to facilitate the feeding of the material to be screened into the second screening drum 505, the rotating disc 509 is arranged to facilitate the rotation of the second screening drum 505 and the relative sliding of the first screening drum 502, and the second screening holes 506 or the third screening holes 507 are matched with the first screening holes 503 according to the requirement, thereby screening the different particle iron concentrate.

[0096] The sleeve shaft 501 is arranged to facilitate the installation of the second pulley 5013, thereby ensuring the normal operation of the driving member.

[0097] In this embodiment, as shown in Figure 1 , Figure 9 , a locking member 6 is arranged on the sleeve shaft 501 to facilitate the rotation of the second screening drum 505 together with the first screening drum 502, and an unlocking member 7 is arranged on the rotating disc 509 to release the restriction of the locking member 6 on the second screening drum 505, thereby achieving the purpose of adjusting the second screening drum 505, the unlocking member 7 being matched with the locking member 6.

[0098] In this embodiment, as shown in Figure 9 , the screening assembly 5 further comprises a fixed shaft 504, the fixed shaft 504 being fixedly installed on the inner wall of the screening box 3, and the first screening drum 502 and the second screening drum 505 being rotatably installed on the fixed shaft 504.

[0099] In this embodiment, as shown in Figure 14As shown, the locking piece 6 comprises a mounting block 601 and a locking column 605, the mounting block 601 is provided with a mounting groove 602, a third spring 603 and a moving block 604 are arranged in the mounting groove 602, the moving block 604 is slidingly arranged in the mounting groove 602, the third spring 603 is used to provide power for the moving block 604 to move along the mounting groove 602, the locking column 605 is fixedly arranged on the moving block 604, the rotating disc 509 is provided with a limiting hole 5015, and the locking column 605 is matched with the limiting hole 5015; the locking piece 6 is used to fix the first screening cylinder 502 and the second screening cylinder 505 together, so that the second screening cylinder 505 rotates together with the first screening cylinder 502 in the process that the driving piece drives the first screening cylinder 502 to rotate, thereby achieving the purpose of screening the iron concentrate powder.

[0100] When the locking column 605 moves to the limiting hole 5015 on the rotating disc 509, the moving block 604 will slide along the mounting groove 602 under the action of the third spring 603, so that the locking column 605 is inserted into the limiting hole 5015, and the first screening cylinder 502 and the second screening cylinder 505 are fixed together.

[0101] The third spring 603 always provides power for the locking column 605, so that the first screening cylinder 502 and the second screening cylinder 505 are always in a relatively static state during the working process, and the screening efficiency of the iron concentrate powder is improved.

[0102] In the embodiment, as shown in the figure, Figure 15 The unlocking piece 7 comprises a fixed column 704, a foolproof ring 703, a jacking rod 702, a pressing plate 701 and a stop block 705, the fixed column 704 is fixedly arranged on the rotating disc 509, the foolproof ring 703 is arranged at the limiting hole 5015, and the center of the foolproof ring 703 coincides with the center of the limiting hole 5015, the jacking rod 702 is fixedly arranged on the pressing plate 701, and the jacking rod 702 is located in the foolproof ring 703, the stop block 705 is fixedly arranged at the end of the fixed column 704, and the pressing plate 701 is slidingly matched with the fixed column 704, pressing the pressing plate 701 drives the fixed column 704 to move to the foolproof ring 703 until the locking column 605 is jacked out of the limiting hole 5015, the unlocking piece 7 is used to release the restriction of the locking piece 6 on the second screening cylinder 505, so that the second screening hole 506 or the third screening hole 507 on the second screening cylinder 505 can be adjusted to coincide with the first screening hole 503, and the purpose of screening the iron concentrate powder with different particle sizes is achieved.

[0103] When unlocking is needed, the jacking rod 702 is only needed to be pressed to move along the fixed column 704 to the side close to the rotating disc 509, the jacking rod 702 penetrates through the foolproof ring 703 and extends into the limiting hole 5015 until the locking column 605 is jacked out of the limiting hole 5015.

[0104] In this embodiment, as Figure 10 As shown, the driving component includes a drive motor 5011, a pad 5010, a first pulley 5014, a second pulley 5013, and a belt 5012. The second pulley 5013 is fixedly mounted on a bushing. The pad 5010 is fixedly mounted on the top of the detection box 1. The drive motor 5011 is fixedly mounted on the pad 5010. The first pulley 5014 is fixedly mounted on the output shaft of the drive motor 5011. The drive motor 5011 drives the first pulley 5014 to rotate. The first pulley 5014 drives the second pulley 5013 to rotate via the belt 5012. The driving component is used to drive the first screening cylinder 502 and the second screening cylinder 505 to rotate, thereby agitating the iron concentrate and improving the screening efficiency of the iron concentrate.

[0105] In this embodiment, as Figure 11 As shown, a vertical rod 5016 is also provided at the bottom of the separator 404. The vertical rod 5016 is symmetrically arranged on both sides of the center line of the separator 404. A material-pushing plate 5017 is also provided at the bottom of the vertical rod 5016. The bottom of the material-pushing plate 5017 is in contact with the inner wall of the second screening cylinder 505. The vertical rod 5016 and the material-pushing plate 5017 can play the purpose of pushing the iron concentrate powder, preventing the iron concentrate powder from sticking to the inner wall of the second screening cylinder 505, and improving the screening efficiency of the iron concentrate powder.

[0106] In this embodiment, as Figure 12 , Figure 13 As shown, the guide component 2 includes a rotating shaft 207, a rotating rod 201, a guide plate 208, and a locking bolt 204. The rotating shaft 207 is rotatably mounted on the side wall of the testing box 1 and extends through the testing box 1 to the outside of the testing box 1. The guide plate 208 is fixedly mounted on the rotating shaft 207. The rotating rod 201 is located on the outside of the testing box 1 and is fixedly mounted on the rotating shaft 207. The locking bolt 204 is threaded onto the rotating rod 201. Several fixing grooves 205 are opened on the side wall of the testing box 1. The fixing grooves 205 are arranged in a circular array around the center of the rotating shaft 207. The fixing grooves 205 cooperate with the locking bolt 204. The guide component 2 can transport iron concentrate of different particle sizes to different electronic scales 8 in the testing box 1, thereby facilitating the weighing of iron concentrate of different particle sizes.

[0107] When the guide plate 208 needs to be adjusted, loosen the locking bolt 204, rotate the rotating rod 201 so that the top of the guide plate 208 rotates at an angle and moves into the limiting groove 301 on the side wall of the screening box 3, and then tighten the locking bolt 204.

[0108] The locking bolt 204 is used to fix the rotating rod 201 on the detection box 1 to ensure that the guide plate 208 is always in a stable state during operation.

[0109] In this embodiment, as Figure 12 As shown, an arc-shaped guide plate 206 is also provided on the outer wall of the detection box 1. The arc-shaped guide plate 206 has a guide groove 202 on the rotating rod 201 with the center of the rotating shaft 207 as the center. The guide groove 202 slides in cooperation with the arc-shaped guide plate 206.

[0110] The arc-shaped guide plate 206 can guide the rotating rod 201 and also limit the rotation of the rotating rod 201 to prevent it from shaking during rotation, thus ensuring the safety of the rotating rod 201 during operation.

[0111] In this embodiment, as Figure 3 As shown, limiting grooves 301 are opened on the two opposing inner walls of the screening box 3, and the limiting grooves 301 cooperate with the ends of the guide plate 208.

[0112] The limiting groove 301 is used to restrict the end of the guide plate 208 to prevent the screened iron concentrate from sliding down the inner wall of the screening box 3 into the detection box 1, ensuring that all the screened iron concentrate can fall onto the guide plate 208 and be conveyed to the designated electronic scale 8 under the action of the guide plate 208.

[0113] In this embodiment, as Figure 12 As shown, a toggle block 203 is also provided at the end of the rotating rod 201. The toggle block 203 facilitates the toggle of the rotating rod 201 and the adjustment of the guide plate 208.

[0114] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the scope defined by the structure of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A screening system for testing iron concentrate production, comprising a screening box and a testing box, wherein the screening box is disposed on top of the testing box and the screening box is connected to the testing box, characterized in that, An electronic scale and a guide are installed inside the testing box. The guide is located at the connection between the screening box and the testing box and is used to guide the iron concentrate that has been screened out. A screening component and a dredging component that cooperate with the screening component are installed inside the screening box. The screening assembly includes a first screening cylinder, a fixed shaft, a second screening cylinder, and a driving component. The second screening cylinder is located inside the first screening cylinder, and its outer wall is in contact with the inner wall of the first screening cylinder. The first and second screening cylinders can rotate relative to each other. A plurality of first screening holes are evenly opened on the first screening cylinder, and a plurality of second screening holes and third screening holes with the same first screening holes are opened on the second screening cylinder. The first and second screening holes have the same diameter, and the third screening holes have a smaller diameter than the first screening holes. The second screening holes or third screening holes on the second screening cylinder can be adjusted to overlap with the first screening holes by rotating the second screening cylinder. The driving component is located on the top of the detection box and is used to drive the first and second screening cylinders to rotate. The fixed shaft is fixedly installed on the inner wall of the screening box, and both the first and second screening cylinders are rotatably mounted on the fixed shaft. A feed pipe is provided at the end of the second screening cylinder, and a rotating disk is also provided at the end of the feed pipe. A sleeve is provided at the end of the first screening cylinder, and the sleeve is sleeved on the feed pipe. A locking component is provided on the sleeve, and an unlocking component is provided on the rotating disk. The unlocking component cooperates with the locking component. The unblocking assembly includes a reciprocating motion component, an air inlet component, an air outlet component, a separator component, and a sealing component. The separator components are symmetrically arranged on both sides of the center line of the first screening cylinder and are installed on the inner wall of the screening box. The separator components are in contact with the outer wall of the first screening cylinder and can rotate relative to the first screening cylinder. The sealing component is located inside the second screening cylinder and is in contact with the inner wall of the second screening cylinder. The second screening cylinder can rotate relative to the sealing component. A sealed space is formed between the separator component, the sealing component, and the inner wall of the screening box. The reciprocating motion component is located on the outside of the screening box and is used to pressurize the air in the sealed space. The air inlet component is located at the top of the screening box and is connected to the screening box. The air outlet component is located on one side of the screening box, above the sealing component, and is connected to the screening box. The locking component includes a mounting block and a locking pin. The mounting block has a mounting groove, and a third spring and a moving block are disposed in the mounting groove. The moving block is slidably disposed in the mounting groove. The third spring is used to provide power for the moving block to move along the mounting groove. The locking pin is fixedly mounted on the moving block. A limit hole is opened on the rotating disk, and the locking pin cooperates with the limit hole. The unlocking component includes a fixed post, a foolproof ring, a push rod, a pressure plate, and a stop block. The fixed post is fixedly installed on the rotating disk. The foolproof ring is located at the limiting hole, and the center of the foolproof ring coincides with the center of the limiting hole. The push rod is fixedly installed on the pressure plate, and the push rod is located inside the foolproof ring. The stop block is fixedly installed at the end of the fixed post. The pressure plate and the fixed post are slidably engaged. Pressing the pressure plate drives the fixed post to move towards the foolproof ring until the locking post is pushed out of the limiting hole.

2. The sieving system for iron concentrate production and testing according to claim 1, characterized in that, The separator includes a separator plate and a first sealing plate. The separator plate is symmetrically arranged on both sides of the first screening cylinder and the second screening cylinder. The separator plate is inclined. One end of the separator plate is connected to the inner wall of the screening box, and the other end of the separator plate is in contact with the outer wall of the first screening cylinder. The first sealing plate is symmetrically arranged on both sides of the separator plate and is located between the inner walls of the first screening cylinder and the screening box. The first sealing plate is in contact with the outer wall of the first screening cylinder. The sealing element includes a base plate, a second sealing plate disposed on both sides of the base plate, and inclined plates located at both ends of the base plate. The inclined plates have the same inclination angle as the partition plates. The second sealing plate is in contact with the inner wall of the second screening cylinder, and a clearance groove is opened on the side plate near the fixed shaft. The base plate is fixedly installed at the end of the fixed shaft.

3. The sieving system for iron concentrate production and testing according to claim 2, characterized in that, A vertical pole is also provided at the bottom of the base plate. The vertical poles are symmetrically arranged on both sides of the center line of the base plate. A material-pushing plate is also provided at the bottom of the vertical pole. The bottom of the material-pushing plate is in contact with the inner wall of the second screening cylinder.

4. The sieving system for iron concentrate production and testing according to claim 1, characterized in that, The reciprocating motion component includes a support, a motor, a piston cylinder, a piston head, a connecting pipe, a piston rod, and a lifting rod. The support is located on one side of the screening box. The motor is fixedly mounted on the support, and a rotating arm is mounted on the output shaft of the motor. The piston cylinders are symmetrically arranged on both sides of the screening box and are fixedly mounted on the screening box. The piston head is located inside the piston cylinder, and the piston rod is mounted on the piston head and extends to the bottom of the piston cylinder. The two ends of the connecting pipe are respectively connected to the piston cylinder and the screening box. A connecting rod is provided on the piston rod. The two ends of the lifting rod are respectively connected to the connecting rods on the piston rods on both sides of the screening box. A strip-shaped hole is opened in the middle of the lifting rod, and a slider is provided in the strip-shaped hole. The end of the rotating arm is rotatably mounted on the slider.

5. A sieving system for iron concentrate production and testing according to claim 1, characterized in that, The air intake component includes an air intake cylinder, a filter cylinder, a first spring, a first sealing plate, and a first sliding rod. The air intake cylinder is located on the top of the screening box and is connected to the screening box. A first mounting rod is provided inside the air intake cylinder. The filter cylinder is sleeved on the air intake cylinder. The two ends of the first sliding rod are respectively connected to the filter cylinder and the first sealing plate. The first spring is sleeved on the first sliding rod and is located between the first mounting rod and the filter cylinder. The exhaust component includes an exhaust cylinder, a second spring, a second sealing plate, and a second sliding rod. The exhaust cylinder is disposed on the side wall of the screening box and is connected to the screening box. A second mounting rod is disposed inside the exhaust cylinder. The second sliding rod is slidably mounted on the second mounting rod. One end of the second sliding rod is fixedly mounted on the second sealing plate, and a baffle is fixedly mounted on the other end of the second sliding rod. The second spring is sleeved on the second sliding rod and is located between the baffle and the second mounting rod.

6. A sieving system for iron concentrate production and testing according to claim 1, characterized in that, The driving component includes a drive motor, a pad, a first pulley, a second pulley, and a belt. The second pulley is fixedly mounted on a bushing. The pad is fixedly mounted on the top of the detection box. The drive motor is fixedly mounted on the pad. The first pulley is fixedly mounted on the output shaft of the drive motor. The drive motor drives the first pulley to rotate. The first pulley drives the second pulley to rotate via the belt.

7. A sieving system for iron concentrate production and testing according to claim 1, characterized in that, The guide component includes a rotating shaft, a rotating rod, a guide plate, and a locking bolt. The rotating shaft is rotatably mounted on the side wall of the testing box and extends through the testing box to the outside of the testing box. The guide plate is fixedly mounted on the rotating shaft. The rotating rod is located on the outside of the testing box and is fixedly mounted on the rotating shaft. The locking bolt is threaded onto the rotating rod. Several fixing grooves are opened on the side wall of the testing box. The fixing grooves are arranged in a circular array around the center of the rotating shaft. The fixing grooves cooperate with the locking bolt.

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