High-performance screening device for high-purity iron ore

Abstract

The invention relates to the technical field of iron ore screening, and discloses a good-performance screening device for high-purity iron ore, which comprises a support assembly, a feeding assembly is mounted on one side of the top of the support assembly, a screening assembly is mounted in the middle of the top of the support assembly through a transmission assembly, and a flushing assembly is correspondingly arranged between the feeding assembly and the screening assembly. The flushing assembly is fixedly installed on one side of the top of the support assembly. According to the ore screening device, a flushing assembly is mounted on the device, so that when the device is used, the device can be flushed through the arranged flushing assembly before screening, and the situation that screening errors are caused by the fact that ores are prevented from adhering to soil is avoided.

Description

Technical Field

[0001] This invention relates to the field of iron ore screening technology, specifically to a high-performance screening device for high-purity iron ore. Background Technology

[0002] In the steel industry, high-purity iron ore is a core raw material for ensuring steel quality and reducing smelting energy consumption. Its impurity content (such as sulfur, phosphorus, silicides, and gangue minerals) directly affects the stability of subsequent smelting processes and product qualification rates. Currently, iron ore screening devices mainly separate ore from impurities through gravity screening, magnetic separation, flotation, or vibration classification.

[0003] Application number CN202221260252.4 discloses a high-performance screening device for high-purity iron ore. Its structure includes a top plate, support columns, and a collection hopper. By optimizing the placement of the screening components above the collection hopper, the first and second screens can be moved and shaken reciprocally. This reciprocating motion of the first and second screens increases the screening speed and efficiency of the iron ore. An optimized shock-absorbing lifting component below the support column uses the elastic potential energy of the first, second, and third springs to counteract the vibrations and shaking generated by the device, reducing noise transmitted to the ground. This allows for easy raising and lowering of the screening device after the shock-absorbing springs are damaged, facilitating maintenance and replacement of the springs and ensuring the device's safety. However, a drawback is that the device cannot separate ore clumps with soil during screening, leading to incorrect grading and potentially affecting subsequent use. Summary of the Invention

[0004] The purpose of this invention is to provide a high-performance screening device for high-purity iron ore, which solves the problem that when screening ore, the device cannot separate some ores that are clumped with soil, resulting in incorrect classification during screening and causing certain impacts on subsequent use.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: The present invention is a high-performance screening device for high-purity iron ore, comprising a support assembly, a feeding assembly installed on one side of the top of the support assembly, a screening assembly installed in the middle of the top of the support assembly via a transmission assembly, and a rinsing assembly corresponding to the feeding assembly and the screening assembly, the rinsing assembly being fixedly installed on one side of the top of the support assembly. The rinsing assembly includes an arch support, which is mounted on the top of one side of the positioning frame. A rinsing water gun is installed on the inner wall of the top side of the arch support. A water tank is connected to the top of the rinsing water gun via a water pipe. The water tank is mounted on the outer wall of one side of the support frame via a bracket.

[0006] Furthermore, the support assembly includes a support frame, a positioning frame is installed on the top of the support frame, an isolation discharge plate is installed at the bottom middle of the positioning frame, the positioning frame is inclined, and a discharge slide rail is installed at the inclined end of the positioning frame. The isolation discharge plate is divided into three channels, and a discharge port is installed at the end of the three channels.

[0007] Furthermore, the feeding assembly includes a positioning bracket, which is installed on the top side of the positioning frame. The top of the positioning bracket is equipped with a feeding port, and the bottom of the feeding port is connected to a transmission channel. The top of the transmission channel is provided with a through slot.

[0008] Furthermore, the rinsing water gun is positioned above the through-slot opening.

[0009] Furthermore, the transmission assembly includes a rotating mechanism, which is mounted on the top of the positioning frame via a bracket. The output end of the rotating mechanism is equipped with a transmission box, which has two sides and is symmetrically arranged. The two transmission boxes are connected by a transmission rod. The output end of the transmission box is equipped with a positioning pulley, which is limited to the top of the tripod by a limiting rod. The other end of the limiting rod is equipped with a transmission gear.

[0010] Furthermore, the screening assembly includes a grading screening cylinder. The outer walls of both sides of the grading screening cylinder are equipped with passive toothed rings and limiting rings. The grading screening cylinder is composed of three screen cylinders of different specifications. The two sides of the grading screening cylinder are respectively provided with an inlet and an outlet. The inside of the inlet is provided with a discharge slide rail. Two sets of passive toothed rings and limiting rings are symmetrically arranged. The passive toothed rings mesh with the transmission gears. The limiting rings are positioned on the top of the positioning pulleys on both sides.

[0011] The present invention has the following beneficial effects: (1) By installing a rinsing component on the device, the present invention can perform a rinsing process on the device before screening by the rinsing component when using the device, thus avoiding screening errors caused by the sticky mud on the ore.

[0012] (2) By installing an isolation discharge plate at the bottom of the screening drum in the device, the present invention can ensure that the ore after classification is correctly discharged when the device is used, and avoid mixing together during the discharge process, which would cause secondary classification in the future.

[0013] Of course, any product implementing this invention does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the device; Figure 2 This is a schematic diagram of the feeding assembly and rinsing assembly in the device; Figure 3 This is a schematic diagram of the transmission and screening components in the device. Figure 4 This is a schematic diagram of the cross-sectional structure of the device; The attached diagram lists the components represented by each number as follows: In the diagram: 1. Support assembly; 2. Feeding assembly; 3. Washing assembly; 4. Transmission assembly; 5. Screening assembly; 101. Support frame; 102. Positioning frame; 103. Isolation discharge plate; 104. Discharge port; 105. Discharge slide rail; 201. Positioning bracket; 202. Feed port; 203. Transmission channel; 204. Through slot; 301. Arch bracket; 302. Washing water gun; 303. Water storage tank; 401. Rotary machine; 402. Transmission box; 403. Transmission rod; 404. Positioning pulley; 405. Transmission gear; 501. Grading and screening cylinder; 502. Passive gear ring; 503. Limiting ring; 504. Input port; 505. Discharge port. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figures 1-4 As shown, the present invention is a high-performance screening device for high-purity iron ore, including a support assembly 1, a feeding assembly 2 installed on one side of the top of the support assembly 1, a screening assembly 5 installed in the middle of the top of the support assembly 1 via a transmission assembly 4, and a rinsing assembly 3 correspondingly provided between the feeding assembly 2 and the screening assembly 5, the rinsing assembly 3 being fixedly installed on one side of the top of the support assembly 1. The rinsing assembly 3 includes an arch support 301, which is installed on the top of one side of the positioning frame 102. A rinsing water gun 302 is installed on the inner wall of the top side of the arch support 301. A water storage tank 303 is connected to the top of the rinsing water gun 302 through a water pipe. The water storage tank 303 is installed on the outer wall of one side of the support frame 101 through a bracket.

[0018] By installing a rinsing component 3 on the device, the device can be rinsed before screening, thus avoiding screening errors caused by sticky mud on the ore.

[0019] The support assembly 1 includes a support frame 101, a positioning frame 102 installed on the top of the support frame 101, an isolation discharge plate 103 installed at the bottom middle of the positioning frame 102, the positioning frame 102 is inclined, and a discharge slide rail 105 is installed at the inclined end of the positioning frame 102. The isolation discharge plate 103 is divided into three channels, and a discharge port 104 is installed at the end of the three channels. As the support foundation of the device, the support frame 101 bears the vertical load and provides stable support for the overall structure. The inclined positioning frame 102 provides an installation positioning reference for components such as feeding and transmission, and also assists the movement of raw materials with the inclined angle. The isolation discharge plate 103 at its bottom divides into three channels, which, together with the discharge port 104 at the end, realize the separation and discharge of graded ore. The discharge slide rail 105 at the inclined end guides the pre-treated raw materials to accurately enter the screening assembly 5.

[0020] The feeding assembly 2 includes a positioning bracket 201, which is installed on the top side of the positioning frame 102. The top of the positioning bracket 201 is equipped with a feed inlet 202, and the bottom of the feed inlet 202 is connected to a transmission channel 203. The top of the transmission channel 203 is provided with a through slot 204. The positioning bracket 201 fixes the feed inlet 202 to the top side of the positioning frame 102 to ensure a stable feeding position. After the iron ore to be screened is fed into the feed inlet 202, it moves along the transmission channel 203 connected at the bottom to the screening assembly 5. The through slot 204 at the top of the transmission channel 203 provides working space for the washing assembly 3, so that the raw material can be accurately washed and impurities removed during transmission, completing the conveying before pretreatment.

[0021] The rinsing water gun 302 is positioned above the through slot 204, and the arch support 301 is fixed to the top of the positioning frame 102, thus setting up the rinsing water gun 302 above the through slot 204. The water storage tank 303 is connected to the rinsing water gun 302 through a water pipe to store clean water. When the raw material passes through the through slot 204, the rinsing water gun 302 draws water from the water storage tank 303 and uses high-pressure jet to rinse the raw material, removing surface dirt, dust and other impurities, and improving the purity of the raw material.

[0022] The transmission assembly 4 includes a rotating mechanism 401, which is mounted on the top of the positioning frame 102 via a bracket. The output end of the rotating mechanism 401 is equipped with a transmission box 402, which has two sides and is symmetrically arranged. The two transmission boxes 402 are connected by a transmission rod 403. The output end of the transmission box 402 is equipped with a positioning pulley 404, which is limited by a limiting rod and positioned on the top of the tripod. The other end of the limiting rod is equipped with a transmission gear 405. After the rotating mechanism 401 is started, the power is transmitted through the two symmetrical transmission boxes 402. The transmission rod 403 ensures that the two transmission boxes 402 operate synchronously. The transmission box 402 drives the positioning pulley 404 to rotate, and the transmission gear 405 associated with the positioning pulley 404 rotates accordingly. The transmission gear 405 meshes with the passive gear ring 502 of the screening assembly 5. At the same time, the positioning pulley 404 supports the limiting ring 503, jointly driving the screening assembly 5 to rotate stably.

[0023] The screening assembly 5 includes a grading screening cylinder 501. Passive gear rings 502 and limiting rings 503 are installed on the outer walls of both sides of the grading screening cylinder 501. The grading screening cylinder 501 is composed of three screen cylinders of different specifications. An inlet 504 and an outlet 505 are respectively opened on both sides of the grading screening cylinder 501. A discharge slide rail 105 is correspondingly provided inside the inlet 504. Two sets of passive gear rings 502 and limiting rings 503 are symmetrically arranged. The passive gear rings 502 and the transmission gear 405 interact with each other. The meshing is achieved by a limiting ring 503 positioned on the top of the positioning pulleys 404 on both sides. The grading and screening cylinder 501 consists of three screen cylinders with progressively larger screen holes. It obtains rotational power by meshing with the transmission gear 405 through a passive gear ring 502. The limiting ring 503 is positioned at the upper limit of the positioning pulleys 404 to ensure smooth rotation. After the raw material enters through the inlet 504, ores of different particle sizes fall into the channel through the corresponding screen cylinders in sequence. Oversized impurities remain inside the cylinder and are finally discharged from the outlet 505, thus achieving ore grading and screening.

[0024] This high-purity iron ore screening device uses support assembly 1 as its foundation, with support frame 101 providing vertical load-bearing capacity and positioning frame 102 for component positioning. It follows a "first washing to remove impurities + then grading and screening" logic to ensure efficiency and purity. Upon startup, the rotating mechanism 401 of transmission assembly 4 is activated first, and its power is synchronously transmitted through the two transmission boxes 402 and transmission rod 403, driving the transmission gear 405 associated with the positioning pulley 404 to rotate. Simultaneously, the transmission gear 405 meshes with the passive gear ring 502 of the screening component 5, and the limiting ring 503 rests on the upper limit of the positioning pulley 404, driving the grading screening cylinder 501 to rotate smoothly. It is necessary to simultaneously ensure that the water storage tank 303 of the washing component 3 has sufficient water, which is connected to the washing water gun 302 on the arch support 301 via a water pipe, preparing for washing. After the device is ready, iron ore is fed into the feed inlet 202 of the feeding component 2. The feed inlet 202 is fixed to the positioning frame 102 via the positioning bracket 201, and the raw material moves along the transmission channel 203. When the raw material passes through the through-slot 204, the washing water gun 302 is activated, drawing water from the water storage tank 303 for high-pressure washing to remove impurities such as mud and dust. The pre-treated raw material slides along the discharge rail 105 at the inclined end of the positioning frame 102 into the inlet 504 of the grading screening cylinder 501. The grading screening cylinder 501 consists of three screen cylinders with progressively larger screen holes, completing the grading process during rotation: the smallest particles pass through the first screen cylinder into the first channel of the positioning frame 102, medium particles pass through the second screen cylinder into the second channel, and larger particles pass through the third screen cylinder into the third channel; oversized impurities remain inside the cylinder and are discharged from the outlet 505 as it rotates. The isolation discharge plate 103 at the bottom of the positioning frame 102 divides the space into three channels, each with an outlet 104 at its end. The graded ore is discharged from the corresponding outlet 104 for easy classification and collection. After screening, the washing water gun 302 is turned off first, then the rotating machine 401 is turned off, impurities are cleaned from the outlet 505, and the components are inspected, completing one screening cycle.

[0025] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high-performance screening device for high-purity iron ore, comprising a support assembly (1), wherein a feeding assembly (2) is installed on one side of the top of the support assembly (1), and a screening assembly (5) is installed in the middle of the top of the support assembly (1) via a transmission assembly (4), characterized in that: A rinsing component (3) is provided between the feeding component (2) and the screening component (5), and the rinsing component (3) is fixedly installed on one side of the top of the support component (1); The rinsing assembly (3) includes an arch support (301), which is installed on the top side of the positioning frame (102). A rinsing water gun (302) is installed on the inner wall of the top side of the arch support (301). A water storage tank (303) is connected to the top of the rinsing water gun (302) through a water pipe. The water storage tank (303) is installed on the outer wall of the support frame (101) through a bracket.

2. The high-performance screening device for high-purity iron ore according to claim 1, characterized in that: The bracket assembly (1) includes a support frame (101), a positioning frame (102) is installed on the top of the support frame (101), an isolation discharge plate (103) is installed at the bottom middle of the positioning frame (102), the positioning frame (102) is inclined, and a discharge slide rail (105) is installed at the inclined end of the positioning frame (102). The isolation discharge plate (103) is divided into three channels, and a discharge port (104) is installed at the end of the three channels.

3. The high-performance screening device for high-purity iron ore according to claim 1, characterized in that: The feeding assembly (2) includes a positioning bracket (201), which is installed on the top side of the positioning frame (102). The top of the positioning bracket (201) is equipped with a feeding port (202), and the bottom of the feeding port (202) is connected to a transmission channel (203). The top of the transmission channel (203) is provided with a through slot (204).

4. The high-performance screening device for high-purity iron ore according to claim 1, characterized in that: The flushing water gun (302) is positioned above the through slot (204).

5. A high-performance screening device for high-purity iron ore according to claim 1, characterized in that: The transmission assembly (4) includes a rotating mechanism (401), which is mounted on the top of the positioning frame (102) via a bracket. The output end of the rotating mechanism (401) is provided with a transmission box (402). The transmission box (402) has two sides and is symmetrically arranged. The two transmission boxes (402) are connected by a transmission rod (403). The output end of the transmission box (402) is provided with a positioning pulley (404). The positioning pulley (404) is limited to the top of the tripod by a limiting rod, and the other end of the limiting rod is equipped with a transmission gear (405).

6. The high-performance screening device for high-purity iron ore according to claim 1, characterized in that: The screening assembly (5) includes a grading screening cylinder (501). Passive gear rings (502) and limiting rings (503) are installed on the outer walls of both sides of the grading screening cylinder (501). The grading screening cylinder (501) is composed of three screen cylinders of different specifications. The two sides of the grading screening cylinder (501) are respectively provided with an inlet (504) and an outlet (505). The inlet (504) is provided with a discharge slide rail (105). The two sets of passive gear rings (502) and limiting rings (503) are symmetrically arranged. The passive gear rings (502) mesh with the transmission gears (405). The limiting rings (503) are limited at the top of the positioning pulleys (404) on both sides.

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