Iron raw material conveying and screening device
By designing components such as screw conveyors and guide plates, mineral particles that do not meet the requirements are automatically collected and repeatedly broken, the problem of screen clogging in the prior art is solved, and no shutdown cleaning and continuous screening are achieved.
Patent Information
- Application Number
- CN202420768099.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-15
AI Technical Summary
During use, the existing iron ore crushing conveyor cannot effectively collect and clean mineral particles that do not meet the requirements, resulting in clogging of the screen and requiring manual cleaning, affecting the continuity.
A kind of iron raw material conveying screening device is designed, using a screw conveyor, a guide plate, a rebound device and a crushing assembly. Through gravity and vibration, particles that do not meet the requirements are moved into the collection plate, repeatedly crushed, and through the guide The material plate is discharged to avoid shutdown and clean up, and eliminate manual operation.
It can clean particles that do not meet the requirements without shutdown, improve the continuity of screening activities, reduce manual operation, and extend the service life of the equipment.
Smart Images
Figure CN222197302U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ironmaking raw material processing, in particular to an iron raw material conveying and screening device. Background Art
[0002] After being smelted, iron ore usually needs to be crushed into ore particles of a certain size. Smaller sintered ore particle size can improve its solubility and fluidity, which is conducive to forming a uniform flux in the blast furnace. However, excessively fine sintered ore particle size will lead to increased loss of coke and fuel, and increase the viscosity and combustibility of the slag, which will reduce the thermal efficiency and smelting speed in the furnace. Larger sintered ore particle size can increase the basicity of the slag and reduce the loss of coke and fuel to a certain extent, but too large a particle size may reduce the fluidity of the sintered ore, causing cooling of the furnace mouth and blockage of the material line, so the ore particles need to be screened after crushing.
[0003] The existing patent document with publication number CN212856591U discloses a conveying device for iron ore crushing that is convenient for vibratory screening, including a device body, a feed hopper and a conveyor belt. The feed hopper is fixedly installed in the middle of the upper end of the device body, and a dust collector is fixedly installed on the left side of the feed hopper, a guide pipe is installed at the right end of the dust collector, and the lower end of the guide pipe is installed at the middle of the upper end of the dust head, a gear is fixedly installed on the transmission rod, a connecting rod is installed on the right side of the movable plate, and the right end of the connecting rod is installed on the left end of the first screening plate, and the second screening plate is installed at the lower end of the first screening plate, a side plate is fixedly installed on the right end of the device body, and a conveyor belt is installed on the inner side of the side plate.
[0004] However, the above device has the following problems when used:
[0005] When the above device is in use, due to various factors, larger mineral particles that do not meet the requirements will inevitably be mixed in the ore particles. However, the device can only place larger particles on the surface of the screen and cannot collect them. As time goes by, the screen will inevitably be clogged and need to be cleaned manually. The operation is cumbersome and time-consuming, and the machine needs to be stopped for operation, which affects the continuity of the screening activity.
[0006] Therefore, we propose an iron raw material conveying and screening device to solve the above problems. Utility Model Content
[0007] The utility model aims to solve the problems existing in the prior art, and proposes an iron raw material conveying and screening device, in which particles that do not meet the requirements will move to the inside of a collecting plate, and under the action of gravity, will be directly discharged through a guide plate, and cleaning activities can be carried out without stopping the machine, and particles that do not meet the requirements can be directly repeatedly crushed, eliminating the need for manual operation of a collection box.
[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0009] An iron raw material conveying and screening device comprises a housing and a screw conveyor, wherein a conveying component and a crushing component are arranged inside the housing;
[0010] The screw conveyor is respectively provided with a discharge port and a feeding port, and the shell is provided with a feeding port, and the discharge port corresponds to the feeding port;
[0011] Two mounting plates are fixedly installed inside the shell, and rebound devices are evenly and equidistantly arranged on the two mounting plates. A screening device is fixedly installed on the other end of the rebound device, and a collecting plate is fixedly installed on the screening device.
[0012] A material guide plate is installed through the shell body, one end of the material guide plate corresponds to the lower part of the collecting plate, and the other end of the material guide plate corresponds to the feeding port.
[0013] Preferably, the screening device includes side plates and inclined plates, and the number of the side plates and the number of the inclined plates are both two. The two inclined plates are spliced together to form a structure with an isosceles triangle cross-section. The cross-section of the side plate is L-shaped. The side plate is fixedly installed on the side of the inclined plate, and the inclined plate and the part of the side plate parallel to the ground are evenly and equidistantly provided with screening grooves.
[0014] Preferably, the screening device and the collecting plate are both installed at an angle, the screening device is installed in a manner of being higher on the left and lower on the right, and the collecting plate is installed in a manner of being higher at the back and lower at the front.
[0015] Preferably, the rebound device includes a fixed rod, which is evenly and equidistantly fixed on the mounting plate, a sliding rod is slidably installed inside the fixed rod, a spring is fixedly installed on the fixed rod, and the other end of the spring is fixedly installed on the side plate.
[0016] Preferably, a connecting rod is rotatably installed inside the shell, the connecting rod is connected to the power source of the crushing assembly through a synchronous belt, and two ejector blocks are fixedly installed on the connecting rod.
[0017] Preferably, the installation angles of the two push blocks differ by 180°, and both push blocks can directly contact the bottom of the corresponding side plate.
[0018] Compared with the prior art, the utility model has the following beneficial effects:
[0019] (1) The utility model is provided with a feed inlet, a screw conveyor, a discharge port, a feeding port, a guide plate, a crushing assembly, a mounting plate and a screening device. Large particles that do not meet the requirements will remain on the surface of the screening device. Then, under the action of gravity, the particles that do not meet the requirements will move to the inside of the collecting plate. Under the action of gravity, they will be directly discharged through the guide plate. Then, the particles that do not meet the requirements will be directly discharged into the feeding port. In the subsequent links, they will re-enter the crushing assembly to perform the crushing activity. There is no need to stop the machine for cleaning activities, and the particles that do not meet the requirements can be directly crushed repeatedly, eliminating the link of manually operating the collection box.
[0020] (2) The utility model is provided with a collecting plate, a rebound device, a side plate and an inclined plate. The crushed ore particles will fall directly on the tips of the two inclined plates. On the one hand, the ore particles will fall through different positions of the inclined plates, so that each part of the conveying component can receive the ore particles, thereby avoiding different degrees of wear of each part of the conveying component. On the other hand, the larger the particle size, the heavier it is, and the greater the kinetic potential energy converted, so that the moving distance is greater. The smaller particles that meet the requirements have a shorter moving distance, so that the larger particles that do not meet the requirements can be concentrated on the side plates on both sides, thereby facilitating subsequent collection activities.
[0021] (3) The utility model is provided with a crushing assembly, a synchronous belt, a connecting rod and a push block. When the crushing assembly is started, the connecting rod and the two push blocks thereon rotate synchronously, and the two side plates are intermittently pushed by the push blocks, so that the height of the side plates is constantly changed, and the screening device is constantly vibrated. Without the need for an external power source, the device can be kept in a stable vibration state, thereby ensuring the screening effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 This is a schematic diagram of an iron raw material conveying and screening device proposed by the utility model;
[0023] Figure 2 This is a schematic diagram of the back side of the shell of an iron raw material conveying and screening device proposed by the utility model;
[0024] Figure 3 This is a schematic diagram of the internal cross-section of a shell of an iron raw material conveying and screening device proposed by the utility model;
[0025] Figure 4 This is a schematic diagram of a collecting plate and a screening device for conveying and screening iron raw materials proposed by the utility model;
[0026] Figure 5 This is a schematic diagram of a rebound device for an iron raw material conveying and screening device proposed by the utility model;
[0027] Figure 6 The utility model provides a schematic diagram of the installation position of the top moving block of the iron raw material conveying and screening device.
[0028] In the figure: 1. Shell; 2. Feed inlet; 3. Conveying assembly; 4. Screw conveyor; 5. Discharge port; 6. Feeding port; 7. Guide plate; 8. Crushing assembly; 9. Synchronous belt; 10. Connecting rod; 11. Mounting plate; 12. Screening device; 13. Collecting plate; 14. Rebound device; 15. Side plate; 16. Inclined plate; 17. Fixed rod; 18. Sliding rod; 19. Spring; 20. Pushing block. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0030] See also Figures 1 to 6 , an iron raw material conveying and screening device, comprising a housing 1 and a screw conveyor 4, wherein a conveying component 3 and a crushing component 8 are arranged inside the housing 1;
[0031] The crushing assembly 8 is used to crush larger ores to make them into a size that meets the requirements of ore refining, and the conveying assembly 3 is used to convey the crushed and screened ores.
[0032] The screw conveyor 4 is respectively provided with a discharge port 5 and a feeding port 6, and the housing 1 is provided with a feeding port 2, and the discharge port 5 corresponds to the feeding port 2;
[0033] By feeding the ore raw materials into the feeding port 6 , the ore raw materials can be discharged through the discharge port 5 through the movement of the auger inside the screw conveyor 4 , and then transported to the inside of the feeding port 2 .
[0034] Two mounting plates 11 are fixedly installed inside the housing 1, and rebound devices 14 are evenly and equidistantly arranged on the two mounting plates 11. A screening device 12 is fixedly installed on the other end of the rebound device 14, and a collecting plate 13 is fixedly installed on the screening device 12.
[0035] The presence of the rebound device 14 can keep the screening device 12 in a continuous vibration state, so that the vibration drives the ore particles to move, thereby performing screening activities.
[0036] The ore particles crushed by the crushing component 8 fall directly onto the surface of the screening device 12. The ore particles that meet the requirements fall through the holes on the screening device 12 and then fall directly onto the conveying component 3. The larger particles that do not meet the requirements will stay on the surface of the screening device 12 and then, under the action of gravity, the particles that do not meet the requirements will move to the inside of the collecting plate 13 for collection.
[0037] A material guide plate 7 is installed through the shell 1 , one end of the material guide plate 7 corresponds to the lower part of the collecting plate 13 , and the other end of the material guide plate 7 corresponds to the feeding port 6 .
[0038] Particles that do not meet the requirements will move into the collecting plate 13, and then be discharged directly through the guide plate 7 under the action of gravity. In order to further ensure the conveying effect, the guide plate 7 can be configured as a vibrating device, so that the particle blocks that do not meet the requirements can be smoothly conveyed through the guide plate 7, and then the particles that do not meet the requirements will be directly discharged into the feeding port 6, and then in the subsequent links, the particles that do not meet the requirements can re-enter the crushing component 8 to perform the crushing activity, without stopping for cleaning activities, and the particles that do not meet the requirements can be directly repeated The crushing activity eliminates the need for manual operation of the collection box.
[0039] The screening device 12 includes a side plate 15 and an inclined plate 16. There are two side plates 15 and two inclined plates 16. The two inclined plates 16 are spliced together to form a structure with an isosceles triangle cross section. The cross section of the side plate 15 is L-shaped. The side plate 15 is fixedly installed on the side of the inclined plate 16. The inclined plate 16 and the part of the side plate 15 parallel to the ground are evenly and equidistantly provided with screening grooves.
[0040] The crushed ore particles will directly fall on the tips of the two inclined plates 16, and then move to the lower two ends. On the one hand, the ore particles will be distributed at different positions of the inclined plates 16, and then the ore particles will fall through different positions of the inclined plates 16, so that each part of the conveying component 3 can receive the ore particles, avoiding different degrees of wear on each part. On the other hand, the larger the particle size, the heavier it is, and the greater the kinetic potential energy converted, so the moving distance is greater, and the smaller the particle size that meets the requirements, the shorter the moving distance, so the larger particle size that does not meet the requirements can be concentrated on the side plates 15 on both sides, thereby facilitating subsequent collection activities.
[0041] The screening device 12 and the collecting plate 13 are both installed at an angle. The screening device 12 is installed in a manner of being higher on the left and lower on the right, and the collecting plate 13 is installed in a manner of being higher at the back and lower at the front.
[0042] The inclined installation method allows the ore particles to move in a concentrated manner under the action of gravity.
[0043] The rebound device 14 includes a fixed rod 17, which is evenly and equidistantly fixed on the mounting plate 11. A sliding rod 18 is slidably installed inside the fixed rod 17. A spring 19 is fixedly installed on the fixed rod 17, and the other end of the spring 19 is fixedly installed on the side plate 15.
[0044] When ore particles continue to fall from the screening device 12, the sliding rod 18 will move inside the fixed rod 17. With the cooperation of the spring 19, the height of the rebound device 14 will continuously change, so that the screening device 12 is in a state of continuous vibration, which is convenient for screening activities.
[0045] A connecting rod 10 is rotatably mounted inside the housing 1 . The connecting rod 10 is connected to a power source of the crushing assembly 8 via a synchronous belt 9 . Two push blocks 20 are fixedly mounted on the connecting rod 10 .
[0046] When the crushing assembly 8 is started, the connecting rod 10 will rotate, and the rotation of the connecting rod 10 causes the two push blocks 20 thereon to rotate synchronously.
[0047] The installation angles of the two push blocks 20 differ by 180°, and both of the two push blocks 20 can directly contact the bottom of the corresponding side plate 15 .
[0048] When the two pushing blocks 20 rotate, the two side plates 15 are intermittently pushed by the pushing blocks 20, so that the height of the side plates 15 is constantly changed, and the screening device 12 is constantly vibrated.
[0049] The working process of the utility model is to put the ore raw material into the feeding port 6, and then through the movement of the auger inside the screw conveyor 4, the ore raw material is transported to the inside of the feeding port 2 through the discharge port 5.
[0050] The ore particles crushed by the crushing assembly 8 fall directly onto the surface of the screening device 12. When the crushing assembly 8 is started, the two pushing blocks 20 on the connecting rod 10 rotate synchronously, and the two side plates 15 are intermittently pushed by the pushing blocks 20, so that the height of the side plates 15 is constantly changed, and the screening device 12 is constantly vibrated.
[0051] The crushed ore particles will directly fall on the tips of the two inclined plates 16, and then the ore particles will move to the lower ends. The inclined installation method allows the ore particles to move to the lower place under the action of gravity.
[0052] The ore particles meeting the requirements fall through the holes in the screening device 12 and then directly fall onto the conveying assembly 3 .
[0053] Larger particles that do not meet the requirements will remain on the surface of the screening device 12, and then move to the inside of the collecting plate 13 under the action of gravity. After the particles that do not meet the requirements move to the inside of the collecting plate 13, they are directly discharged through the guide plate 7 under the action of gravity. The particle blocks that do not meet the requirements can be smoothly transported through the guide plate 7, and then the particles that do not meet the requirements will be directly discharged into the feeding port 6, and then in the subsequent links, the particles that do not meet the requirements can re-enter the crushing component 8 to perform the crushing activity.
[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An iron raw material conveying and screening device, comprising a housing (1) and a screw conveyor (4), characterized in that: A conveying component (3) and a crushing component (8) are arranged inside the housing (1); A discharge port (5) and a feeding port (6) are respectively installed on the screw conveyor (4), and a feeding port (2) is opened on the shell (1), and the discharge port (5) corresponds to the feeding port (2); Two mounting plates (11) are fixedly mounted inside the housing (1), and rebound devices (14) are evenly and equidistantly arranged on the two mounting plates (11). A screening device (12) is fixedly mounted on the other end of the rebound device (14), and a collecting plate (13) is fixedly mounted on the screening device (12); A material guide plate (7) is installed through the shell (1), one end of the material guide plate (7) corresponds to the lower part of the collecting plate (13), and the other end of the material guide plate (7) corresponds to the feeding port (6).
2. The iron raw material conveying and screening device according to claim 1, characterized in that: The screening device (12) comprises a side plate (15) and an inclined plate (16). The number of the side plates (15) and the number of the inclined plates (16) are both two. The two inclined plates (16) are spliced together to form a structure with an isosceles triangle cross section. The cross section of the side plate (15) is L-shaped. The side plate (15) is fixedly mounted on the side of the inclined plate (16). The inclined plate (16) and the side plate (15) are parallel to the ground and are evenly and evenly provided with screening grooves.
3. An iron raw material conveying and screening device according to claim 1 or 2, characterized in that: The screening device (12) and the collecting plate (13) are both installed at an angle, the screening device (12) being installed in a manner of being higher on the left and lower on the right, and the collecting plate (13) being installed in a manner of being higher at the back and lower at the front.
4. The iron raw material conveying and screening device according to claim 1, characterized in that: The rebound device (14) comprises a fixed rod (17), the fixed rod (17) being fixedly mounted on the mounting plate (11) at equal intervals, a sliding rod (18) being slidably mounted inside the fixed rod (17), a spring (19) being fixedly mounted on the fixed rod (17), and the other end of the spring (19) being fixedly mounted on the side plate (15).
5. An iron raw material conveying and screening device according to claim 1, 2 or 4, characterized in that: A connecting rod (10) is rotatably mounted inside the housing (1). The connecting rod (10) is connected to a power source of the crushing assembly (8) via a synchronous belt (9). Two push blocks (20) are fixedly mounted on the connecting rod (10).
6. The iron raw material conveying and screening device according to claim 3, characterized in that: A connecting rod (10) is rotatably mounted inside the housing (1). The connecting rod (10) is connected to a power source of the crushing assembly (8) via a synchronous belt (9). Two push blocks (20) are fixedly mounted on the connecting rod (10).
7. The iron raw material conveying and screening device according to claim 5, characterized in that: The installation angles of the two push blocks (20) differ by 180°, and both push blocks (20) can directly contact the bottom of the corresponding side plate (15).