Iron ore crushing and screening device

Abstract

The utility model belongs to the technical field of iron ore crushing and screening, and particularly relates to an iron ore crushing and screening device which comprises a device shell, a crushing mechanism and a feeding port, the crushing mechanism is installed on the upper surface of the device shell, the feeding port is connected to the top of the crushing mechanism, and a first screening plate is installed on the inner wall of the device shell. The side surface of the device shell located at the lower end of the first sieve plate is connected with a first guide groove, and a second sieve plate is installed on the inner wall of the device shell. Iron ore particles which cannot pass through the sieve holes of the first sieve plate fall on the surface of the baffle through the first guide groove, when the driving motor drives the conveying belt through the roller shaft, the conveying belt drives the iron ore particles to move upwards through the baffle, and the baffle is bent after moving to the feeding groove and being blocked. And at the moment, iron ore particles can fall into the crushing mechanism through the interiors of the feeding groove and the feeding opening to be subjected to secondary crushing, so that secondary crushing can be automatically carried out, the standard particle size is achieved, and the machining efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of iron ore crushing and screening technology, and specifically relates to an iron ore crushing and screening device. Background Technology

[0002] Iron ore crushing and screening equipment is a crucial component in the iron ore processing flow. It primarily breaks large pieces of iron ore into smaller particles and classifies them by screening. Raw iron ore blocks enter the machine through a hopper. Inside the machine, the ore is subjected to various external forces (such as compression, impact, or shearing), breaking it down into smaller particles. This process may utilize different types of crushing equipment, such as jaw crushers and cone crushers, selecting the appropriate crushing method and equipment based on the hardness and particle size requirements of the iron ore. The crushed iron ore is then sorted by size using screening equipment. Screening equipment may include vibrating screens and drum screens, which use different screen sizes and vibration methods to classify the iron ore according to particle size, ensuring that only fragments meeting the required specifications pass through and proceed to subsequent processing stages.

[0003] After crushing, iron ore often retains large particles that do not meet size requirements. These large particles not only hinder subsequent processes but can also lead to inconsistent product quality. Therefore, to ensure production continuity and product quality consistency, these large particles must be collected and fed into secondary crushing equipment for further processing. However, this process increases the complexity of production steps, incurs additional energy consumption, equipment wear and tear, and labor costs, thus raising overall production costs. Utility Model Content

[0004] The purpose of this invention is to provide an iron ore crushing and screening device, aiming to solve the problem that in existing technologies, after iron ore is crushed, a portion of large particles that do not meet the particle size requirements often remain. The presence of these large particles not only affects the smooth progress of subsequent processes but may also lead to unstable product quality. To ensure the continuity of the production process and the consistency of product quality, these large particles must be collected and sent to secondary crushing equipment for further processing. However, this process not only increases the complexity of the production process but also brings additional energy consumption, equipment wear and tear, and labor costs, thus leading to an increase in overall production costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an iron ore crushing and screening device, comprising a device housing, a crushing mechanism, and a feed inlet. The crushing mechanism is installed on the upper surface of the device housing, and the feed inlet is connected to the top of the crushing mechanism. A first screen plate is installed on the inner wall of the device housing, and a first guide chute is connected to the side surface of the device housing located at the lower end of the first screen plate. A second screen plate is installed on the inner wall of the device housing, and a first discharge cylinder is connected to the side surface of the device housing located at the lower end of the second screen plate. A feeding housing is connected to the side surface of the device housing, and a roller shaft runs through the interior of the feeding housing. A bearing is installed between the roller shaft and the feeding housing. A conveyor belt is sleeved on the surface of the roller shaft, and a baffle is connected to the surface of the conveyor belt. A feed chute is connected to the side surface of the feed inlet, and a drive motor is connected to the end of the roller shaft.

[0006] In a preferred embodiment of the iron ore crushing and screening device of this utility model, the first screen plate is located above the second screen plate, and the aperture of the first screen plate is larger than that of the second screen plate.

[0007] As a preferred embodiment of the iron ore crushing and screening device of this utility model, two rollers are provided, and the rollers form a rotating structure with the feeding shell through bearings.

[0008] In a preferred embodiment of the iron ore crushing and screening device of this utility model, the baffle is made of rubber and the baffle and the conveyor belt are an integral structure.

[0009] As a preferred embodiment of the iron ore crushing and screening device of this utility model, a water pipe is connected through the upper surface of the device shell, a nozzle is installed on the surface of the water pipe, a water valve is installed at the bottom of the device shell, a filter plate is connected to the inner wall of the device shell, and a second discharge cylinder is connected to the side surface of the device shell located at the lower end of the filter plate.

[0010] In a preferred embodiment of the iron ore crushing and screening device of this utility model, both the filter plate and the second discharge cylinder are inclined devices, with the high end of the second discharge cylinder lower than the low end of the filter plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, iron ore particles that cannot pass through the screen holes of the first screen plate will slide onto the surface of the first feed chute and fall onto the surface of the baffle. When the drive motor drives the conveyor belt to rotate through the roller shaft, the conveyor belt can drive the baffle near the first feed chute to move upward. When the baffle moves upward, it can drive the iron ore particles upward. When the baffle moves to the feed chute, it will bend due to the obstruction of the edge of the feed chute. At this time, the iron ore particles on the surface of the baffle can slide into the inside of the feed inlet through the feed chute. The iron ore particles inside the feed inlet can fall into the inside of the crushing mechanism for secondary crushing. In this way, secondary crushing can be performed automatically to achieve the standard particle size and improve processing efficiency.

[0013] In this invention, water from the water pipe can be sprayed through a nozzle to mist the inside of the device housing, which then settles onto the iron ore particles. The iron ore particles, after being screened by the first and second sieves, fall onto the surface of the filter plate. At this time, wastewater can drip through the filter plate onto the bottom of the inner cavity of the device housing. When the water valve is opened, the wastewater inside the device housing can be discharged. This process effectively reduces dust and washes away impurities from the surface of the iron ore particles, thereby improving the purity of the iron ore particles. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the main cross-sectional structure of this utility model;

[0018] Figure 4 This is a cross-sectional view of the internal structure of the device housing of this utility model;

[0019] Figure 5 This is a schematic diagram of the baffle driving structure of this utility model;

[0020] Figure 6 This utility model Figure 3 Schematic diagram of the structure at point A in the middle.

[0021] In the diagram: 1. Device housing; 2. Crushing mechanism; 3. Feed inlet; 4. First screen plate; 5. First guide chute; 6. Second screen plate; 7. First discharge cylinder; 8. Feeding housing; 9. Roller shaft; 10. Bearing; 11. Conveyor belt; 12. Baffle; 13. Feed chute; 14. Water pipe; 15. Nozzle; 16. Water valve; 17. Filter plate; 18. Second discharge cylinder; 19. Drive motor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-6 The present invention provides the following technical solution: an iron ore crushing and screening device, comprising a device housing 1, a crushing mechanism 2, and a feed inlet 3. The crushing mechanism 2 is installed on the upper surface of the device housing 1, and the feed inlet 3 is connected to the top of the crushing mechanism 2. A first screen plate 4 is installed on the inner wall of the device housing 1. A first guide trough 5 is connected to the side surface of the device housing 1 located at the lower end of the first screen plate 4. A second screen plate 6 is installed on the inner wall of the device housing 1. A first discharge cylinder 7 is connected to the side surface of the device housing 1 located at the lower end of the second screen plate 6. A feeding housing 8 is connected to the side surface of the device housing 1. A roller shaft 9 passes through the inside of the feeding housing 8. A bearing 10 is installed between the roller shaft 9 and the feeding housing 8. A conveyor belt 11 is sleeved on the surface of the roller shaft 9. A baffle 12 is connected to the surface of the conveyor belt 11. A feed trough 13 is connected to the side surface of the feed inlet 3. A drive motor 19 is connected to the end of the roller shaft 9.

[0024] First, the iron ore raw material is fed into the feed inlet 3. The iron ore can enter the crushing mechanism 2 through the feed inlet 3. Then, the iron ore is crushed by the crushing roller inside the crushing mechanism 2. After that, it can be screened by the first screen plate 4 and the second screen plate 6.

[0025] Preferably, the first sieve plate 4 is located above the second sieve plate 6, and the aperture of the first sieve plate 4 is larger than the aperture of the second sieve plate 6.

[0026] In practical use, the first sieve plate 4 can screen out large iron ore particles that exceed the standard maximum size, and then the second sieve plate 6 can be used to separate large iron ore particles that are smaller than the standard maximum size.

[0027] Preferably, there are two rollers 9, and the rollers 9 form a rotating structure with the feeding housing 8 through the bearing 10.

[0028] In practical use, the drive motor 19 can drive the roller 9 to rotate inside the roller 9, and the rotation of the roller 9 can drive the conveyor belt 11 to rotate.

[0029] Preferably, the baffle 12 is made of rubber, and the baffle 12 and the conveyor belt 11 are an integral structure.

[0030] In practical use, when the conveyor belt 11 rotates, it can drive the baffle 12 to move simultaneously, so that the iron ore particles can be lifted by the movement of the baffle 12.

[0031] Preferably, a water pipe 14 is connected through the upper surface of the device housing 1, a nozzle 15 is installed on the surface of the water pipe 14, a water valve 16 is installed at the bottom of the device housing 1, a filter plate 17 is connected to the inner wall of the device housing 1, and a second discharge cylinder 18 is connected to the side surface of the device housing 1 located at the lower end of the filter plate 17.

[0032] Preferably, both the filter plate 17 and the second discharge cylinder 18 are inclined devices, with the high end of the second discharge cylinder 18 being lower than the low end of the filter plate 17.

[0033] In actual use, the iron ore particles roll downwards on the surface of the filter plate 17, and at this time the water can fall into the bottom of the inner cavity of the device housing 1 through the filter plate 17.

[0034] Working principle: When using this crushing and screening device, the crushed iron ore particles can fall onto the surface of the first screen plate 4. At this time, iron ore exceeding the standard maximum size cannot pass through the screen holes of the first screen plate 4 and will slide onto the surface of the first guide chute 5. Then, the iron ore particles on the inner wall of the first guide chute 5 will fall onto the surface of the baffle 12. When the drive motor 19 runs, it can drive the bottom roller 9 to rotate. The rotation of the roller 9 can drive the conveyor belt 11 to rotate. During the rotation of the conveyor belt 11, it can drive the baffle 12 near the first guide chute 5 to move upward. When the baffle 12 moves upward, it can drive the iron ore particles to move upward. When the baffle 12 moves to the end of the feed chute 13, the baffle 12 will bend due to the obstruction of the edge of the feed chute 13. At this time, the iron ore particles on the surface of the baffle 12 can fall onto the surface of the feed chute 13 and slide into the inside of the feed inlet 3. The iron ore particles inside the feed inlet 3 can fall into the inside of the crushing mechanism 2 for secondary crushing.

[0035] Iron ore particles falling through the sieve holes of the first sieve plate 4 will land on the surface of the second sieve plate 6 and be screened. Iron ore particles that cannot pass through the sieve holes of the second sieve plate 6 can slide onto its surface and be discharged into the first discharge cylinder 7. At the same time, water from the water pipe 14 can be sprayed out through the nozzle 15. The sprayed water mist can perform dust suppression treatment inside the device housing 1. Iron ore particles that pass through the sieve holes of the second sieve plate 6 can land on the surface of the water filter plate 17. When the iron ore particles slide on the surface of the water filter plate 17, the sewage can drip onto the bottom of the inner cavity of the device housing 1 through the water filter plate 17. Iron ore particles on the surface of the water filter plate 17 can slide onto the surface of the second discharge cylinder 18 and be discharged. When the water valve 16 is opened, the sewage inside the device housing 1 can be discharged.

[0036] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An iron ore crushing and sizing device comprising a device housing (1), a crushing mechanism (2) and a feed inlet (3), characterized in that: The upper surface of the device shell (1) is provided with a crushing mechanism (2), the top of the crushing mechanism (2) is connected with a feeding port (3), the inner wall of the device shell (1) is provided with a first sieve plate (4), the side surface of the device shell (1) at the low end of the first sieve plate (4) is connected with a first material guide groove (5), the inner wall of the device shell (1) is provided with a second sieve plate (6), the side surface of the device shell (1) at the low end of the second sieve plate (6) is connected with a first discharge cylinder (7), the side surface of the device shell (1) is connected with a feeding shell (8), the inside of the feeding shell (8) is penetrated by a roller shaft (9), the roller shaft (9) and the feeding shell (8) are provided with a bearing (10), the surface of the roller shaft (9) is sleeved with a conveyor belt (11), the surface of the conveyor belt (11) is connected with a baffle (12), the side surface of the feeding port (3) is connected with a feeding groove (13), and the end of the roller shaft (9) is connected with a driving motor (19).

2. An iron ore crushing and screening device as claimed in claim 1, wherein: The first sieve plate (4) is located above the second sieve plate (6), and the aperture of the first sieve plate (4) is larger than that of the second sieve plate (6).

3. An iron ore crushing and screening device as claimed in claim 1, wherein: The roller shaft (9) is provided with two, and the roller shaft (9) and the feeding shell (8) constitute a rotating structure through the bearing (10).

4. The iron ore crushing and screening device as claimed in claim 1, wherein: The baffle (12) is made of rubber material, and the baffle (12) and the conveyor belt (11) are integrated.

5. The iron ore crushing and screening device as claimed in claim 1, wherein: The upper surface of the device shell (1) is penetrated and connected with a water pipe (14), the surface of the water pipe (14) is provided with a spray head (15), the bottom of the device shell (1) is provided with a water valve (16), the inner wall of the device shell (1) is connected with a water filter plate (17), and the side surface of the device shell (1) at the low end of the water filter plate (17) is connected with a second discharge cylinder (18).

6. An iron ore crushing and sizing apparatus as claimed in claim 5 wherein: The water filter plate (17) and the second discharge cylinder (18) are both inclined devices, and the high end of the second discharge cylinder (18) is lower than the low end of the water filter plate (17).

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