Crushing and screening device for sintering ore preparation

Abstract

The crushing and screening device comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a plurality of supporting frames, the top ends of the supporting frames are fixedly connected with a screening box, the bottom of the screening box is vertically communicated with a second vertical pipe, the bottom of the inner wall of the screening box is fixedly connected with a material collecting groove, and the bottom of the inner wall of the screening box is fixedly connected with a first vertical pipe. The top of the material collecting groove is fixedly connected with a plurality of shock absorbers, and the top ends of the shock absorbers are fixedly connected with a triangular screening plate. According to the crushing and screening device for sintering ore preparation, unqualified limestone is guided and discharged through the inclination angle of the surface of a triangular screening plate, the discharged unqualified limestone enters an inner cavity of a second crushing box, secondary crushing can be conducted on the limestone through a second crushing roller set, and the crushing effect of the device on the limestone is improved; and the quality of the crushed limestone is improved, and subsequent preparation, processing and use of sintered ore are facilitated.

Description

A crushing and screening device for sinter preparation Technical Field

[0001] This utility model relates to the field of sinter crushing technology, specifically a crushing and screening device for sinter preparation. Background Technology

[0002] Sintered ore is a major raw material for blast furnace ironmaking. High-temperature sintered ore is made by thoroughly mixing iron ore, coke powder, and some additives, and then evenly distributing the mixture on a sintering machine. The ignition furnace ignites the upper surface of the material layer, and under the negative pressure of the exhaust fan, the material gradually burns downwards along the sintering material layer until it reaches the bottom. After sintering is completed, all the sintered ore in the trolley is unloaded at the tail end of the sintering machine under the action of gravity.

[0003] In the existing technology, limestone needs to be crushed and screened during the preparation of sinter. However, most existing crushing and screening devices for sinter preparation only have a single crushing function, which can easily lead to incomplete crushing and affect the subsequent preparation of sinter. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a crushing and screening device for sinter preparation, which solves the problem that most existing crushing and screening devices for sinter preparation only have a single crushing function and are prone to incomplete crushing.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a crushing and screening device for sinter preparation, comprising a base plate, a plurality of support frames fixedly connected to the upper surface of the base plate, a screening box fixedly connected to the top of the support frames, a second vertical pipe vertically connected to the bottom of the screening box, a material collection bevel fixedly connected to the bottom of the inner wall of the screening box, a plurality of shock absorbers fixedly connected to the top of the material collection bevel, a triangular screening plate fixedly connected to the top of the shock absorbers, and a connecting plate fixedly connected to the rear side of the triangular screening plate;

[0006] The top of the screening box is connected to a screening box, and the top of the screening box is connected to a first crushing box through a first vertical pipe. The first crushing box is equipped with a first crushing roller group inside.

[0007] The bottom of the screening box is connected to a second crushing box at both ends. The second crushing box is equipped with a second crushing roller group. The bottom of the second crushing box is connected to a guide pipe. The bottom of the screening box is connected to a second vertical pipe.

[0008] Furthermore, the bottom end of the second vertical pipe is connected to a material collecting cylinder, and the other end of the guide pipe is connected to the inner cavity of the material collecting cylinder.

[0009] Furthermore, a conveyor belt is provided on the top of the base plate, located below the collecting cylinder, and the width of the conveyor belt is greater than the width of the collecting cylinder.

[0010] Furthermore, a dust removal disc is fixedly connected to the inner wall of the collecting cylinder, and a connecting pipe is connected to the surface of the dust removal disc, with the other end of the connecting pipe extending to the outside of the collecting cylinder.

[0011] Furthermore, the top of the first crushing box is connected to a feed hopper, and the bottom of the base plate is fixedly connected to an anti-slip foot plate.

[0012] Furthermore, a dust sensor is installed on the collecting cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: After limestone is introduced into the first crushing box, it can be crushed by the first crushing roller group. The crushed limestone is then screened by a triangular screen plate. The qualified limestone is guided into the inner cavity of the second vertical pipe through the collection bevel. The unqualified limestone is guided by the inclined angle of the triangular screen plate and fed into the inner cavity of the second crushing box, where it can be crushed again by the second crushing roller group. This improves the crushing effect of the device on limestone, improves the quality of the crushed limestone, and is beneficial for the subsequent preparation and processing of sintered ore. Furthermore, after the vibrating motor is working, the triangular screen plate can be driven to vibrate through the connection of the connecting plate and the support of the shock absorber, thereby improving the screening efficiency of the triangular screen plate on limestone. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the front structure of this utility model;

[0015] Figure 2 is a front sectional view of the present invention.

[0016] Figure 3 is a schematic diagram of the triangular sieve plate and the vibrating motor in this utility model.

[0017] In the diagram: 1. Base plate; 2. Support frame; 3. Screening box; 4. First crushing box; 5. First crushing roller group; 6. Feed hopper; 7. First vertical pipe; 8. Gathering bevel; 9. Shock absorber; 10. Triangular screening plate; 11. Connecting plate; 12. Vibration motor; 13. Second vertical pipe; 14. Guide pipe; 15. Second crushing roller group; 16. Gathering cylinder; 17. Dust removal disc; 18. Connecting pipe; 19. Second crushing box; 20. Dust sensor; 21. Conveyor belt; 22. Anti-slip foot plate. Detailed Implementation

[0018] 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.

[0019] Please refer to Figures 1-3. This utility model provides a technical solution: a crushing and screening device for sinter preparation, including a base plate 1, a plurality of support frames 2 fixedly connected to the upper surface of the base plate 1, a screening box 3 fixedly connected to the top of the support frame 2, and a second vertical pipe 13 vertically connected to the bottom of the screening box 3.

[0020] A material collection bevel 8 is fixedly connected to the bottom of the inner wall of the screening box 3. Several shock absorbers 9 are fixedly connected to the top of the material collection bevel 8. A triangular screening plate 10 is fixedly connected to the top of the shock absorber 9. A connecting plate 11 is fixedly connected to the rear side of the triangular screening plate 10.

[0021] The top of the screening box 3 is connected to the screening box 3, and the top of the screening box 3 is connected to the first crushing box 4 through the first vertical pipe 7. The first crushing box 4 is equipped with a first crushing roller group 5.

[0022] The bottom of the screening box 3 is connected to the two ends of the second crushing box 19. The second crushing box 19 is equipped with the second crushing roller group 15. The bottom of the second crushing box 19 is connected to the guide pipe 14. The bottom of the screening box 3 is connected to the second vertical pipe 13.

[0023] After the limestone is introduced into the first crushing box 4, it can be crushed by the first crushing roller group 5. The crushed limestone is then screened by the triangular screen plate 10.

[0024] After passing the screening, the limestone enters the inner cavity of the second vertical pipe 13 through the guide of the aggregate slope 8. The unqualified limestone is guided by the inclined angle of the surface of the triangular screen plate 10 and then enters the inner cavity of the second crushing box 19.

[0025] The second crushing roller group 15 performs secondary crushing of the limestone inside the second crushing box 19, improving the crushing effect of the device on limestone, improving the quality of the crushed limestone, and facilitating the subsequent preparation, processing and use of sintered ore.

[0026] After the vibrating motor 12 starts working, it can drive the triangular screening plate 10 to vibrate through the connection of the connecting plate 11 and the support of the shock absorber 9, thereby improving the screening efficiency of the triangular screening plate 10 for limestone.

[0027] The bottom end of the second vertical pipe 13 is connected to the collecting cylinder 16, and the other end of the guide pipe 14 is connected to the inner cavity of the collecting cylinder 16. The collecting cylinder 16 facilitates the collection and feeding of crushed limestone.

[0028] The top of the base plate 1 is provided with a conveyor belt 21 located below the collecting cylinder 16. The width of the conveyor belt 21 is greater than the width of the collecting cylinder 16. The conveyor belt 21 is existing technology and will not be described in detail here. The conveyor belt 21 facilitates the transportation of limestone.

[0029] A dust collector 17 is fixedly connected to the inner wall of the collecting cylinder 16. A connecting pipe 18 is connected to the surface of the dust collector 17, and the other end of the connecting pipe 18 extends to the outside of the collecting cylinder 16.

[0030] The connecting pipe 18 facilitates the connection between the external dust removal components and the dust removal disk 17, making it easier to collect and treat the dust generated during material feeding.

[0031] The top of the first crushing box 4 is connected to the feed hopper 6, and the bottom of the base plate 1 is fixedly connected to the anti-slip foot plate 22. The dust sensor 20 is installed on the collecting cylinder 16, which facilitates the detection of dust inside the collecting cylinder 16.

[0032] During operation, after limestone is introduced into the first crushing box 4, it can be crushed by the first crushing roller group 5. The crushed limestone is then screened by the triangular screen plate 10. The qualified limestone is guided into the inner cavity of the second vertical pipe 13 through the aggregate slope 8. The unqualified limestone is guided by the inclined angle of the surface of the triangular screen plate 10 and discharged. The unqualified limestone is discharged into the inner cavity of the second crushing box 19, where it can be crushed again by the second crushing roller group 15. This improves the crushing effect of the device on limestone, improves the quality of the crushed limestone, and is beneficial for the subsequent preparation and processing of sintered ore.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A crushing and screening device for sinter preparation, comprising a base plate (1), characterized in that: Several support frames (2) are fixedly connected to the upper surface of the base plate (1). A screening box (3) is fixedly connected to the top of the support frame (2). A second vertical pipe (13) is vertically connected to the bottom of the screening box (3). A material collection bevel (8) is fixedly connected to the bottom of the inner wall of the screening box (3). Several shock absorbers (9) are fixedly connected to the top of the material collection bevel (8). A triangular screening plate (10) is fixedly connected to the top of the shock absorber (9). A connecting plate (11) is fixedly connected to the rear side of the triangular screening plate (10). The top of the screening box (3) is connected to the screening box (3), and the top of the screening box (3) is connected to the first crushing box (4) through the first vertical pipe (7). The first crushing box (4) is equipped with a first crushing roller group (5). The bottom ends of the screening box (3) are connected to the second crushing box (19). The second crushing box (19) is equipped with a second crushing roller group (15). The bottom of the second crushing box (19) is connected to the guide pipe (14). The bottom of the screening box (3) is connected to the second vertical pipe (13).

2. The crushing and screening device for sinter preparation according to claim 1, characterized in that: The bottom end of the second vertical pipe (13) is connected to the collecting cylinder (16), and the other end of the guide pipe (14) is connected to the inner cavity of the collecting cylinder (16).

3. The crushing and screening device for sinter preparation according to claim 2, characterized in that: The bottom plate (1) is provided with a conveyor belt (21) located below the collection cylinder (16) on its top, and the width of the conveyor belt (21) is greater than the width of the collection cylinder (16).

4. The crushing and screening device for sinter preparation according to claim 2, characterized in that: The inner wall of the collecting cylinder (16) is fixedly connected to a dust removal disc (17), and the surface of the dust removal disc (17) is connected to a connecting pipe (18), the other end of which extends to the outside of the collecting cylinder (16).

5. The crushing and screening device for sinter preparation according to claim 1, characterized in that: The top of the first crushing box (4) is connected to a feed hopper (6), and the bottom of the base plate (1) is fixedly connected to an anti-slip foot plate (22).

6. The crushing and screening device for sinter preparation according to claim 2, characterized in that: A dust sensor (20) is installed on the collecting cylinder (16).

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