Slope protection structure of sinter single-roller crusher

Abstract

The utility model provides a slope protection structure of a sinter single-roll crusher, and aims to solve the technical problem that an existing slope protection can deform after working for a certain time. According to the slope protection structure, a plurality of partition plates are arranged in a groove body, so that a plurality of filling parts are formed in the groove body, a ceramic block is arranged in each filling part, and the thickness of each ceramic block is at least equal to the depth of the corresponding filling part. Therefore, in the using process, the side, provided with the ceramic blocks, of the groove body faces upwards, the groove body bears impact from sintered ore, and the damage rate of the whole slope protection structure is reduced by means of high-hardness impact resistance of ceramic at the high temperature. In addition, through the arrangement of the partition plates, the periphery of the ceramic block can be protected, and then the impact resistance of the ceramic block is improved. According to the technical scheme, the purpose of improving the structural strength of the whole slope protection structure is achieved by mainly utilizing the characteristics that ceramic is resistant to high temperature and still can keep high hardness in a high-temperature environment.

Description

Technical Field

[0001] This utility model relates to the field of metal smelting technology, specifically to a slope protection structure for a sintered ore single-roll crusher. Background Technology

[0002] In the iron and steel smelting process, the sinter crushing process is a key link between sintering and ironmaking, and the reliability of its equipment directly affects the continuity of production.

[0003] The cake-shaped sinter produced at the tail end of the sintering machine reaches a temperature of 700-1000℃ and falls into the single-roll crusher via the feed chute at a speed of 3-5 m / s. During this process, the steel retaining wall installed between the tail end of the sintering machine and the inlet of the crusher serves a dual function: on the one hand, it controls the material trajectory through guide plates with an inclination angle of 15-25°; on the other hand, it needs to withstand an instantaneous impact load of approximately 500-800 kg / m².

[0004] Existing slope protection structures generally use welded structures made of Q235B carbon steel plates. Under long-term exposure to high-temperature radiation and the impact of hot sintered ore, the yield strength of the steel decreases significantly, leading to localized indentation deformation (maximum deformation up to 50mm) and weld cracking in structural components after only 3-6 months of service. More seriously, slope deformation alters the trajectory of material falling, causing 15%-20% of the sintered ore to deviate from the crushing zone and directly impact the hammer base, exacerbating the abnormal wear rate of the hammer by more than 30%.

[0005] Because the slope protection structure is installed adjacent to the high-temperature sintering ore conveying channel, each maintenance requires an 8-12 hour shutdown for cooling, directly impacting the daily output of a single 500m² sintering machine, which is approximately 4,000 tons. Although some companies have attempted improvements by using 16Mn alloy steel or increasing the steel plate thickness to 40mm, the material cost has increased by 120%, while the service life has only been extended by 20%-30%, failing to fundamentally solve the problem of thermal fatigue failure. Utility Model Content

[0006] To address the technical problem that existing slope protection structures deform after a certain period of operation, this utility model provides a slope protection structure for a sintered ore single-roll crusher. By filling the trough with ceramics, which are resistant to high temperatures and have high hardness, the slope protection structure has the advantages of high temperature resistance and impact resistance, thereby extending the service life of the slope protection.

[0007] The technical solution of this utility model is:

[0008] A slope protection structure for a sintered ore single-roll crusher includes:

[0009] The tank body is sealed with plates on all sides and bottom, and has an open top. The tank body is provided with multiple mounting holes, and baffles are provided around the mounting holes.

[0010] Several partitions are provided in the tank, and several filling sections are separated in the tank;

[0011] Multiple ceramic blocks are respectively disposed in each of the filling sections;

[0012] The thickness of the ceramic block is greater than or equal to the depth of the filling section.

[0013] Optionally, the tank body is provided with multiple lifting lugs around its perimeter.

[0014] Optionally, one end of the tank is an impact zone and the other end is a buffer zone, and the filling density of the impact zone is greater than the filling density of the buffer zone.

[0015] Optionally, the number of mounting holes in the impact zone is twice the number of mounting holes in the buffer zone.

[0016] Optionally, the area of ​​the impact zone is smaller than the area of ​​the buffer zone.

[0017] Optionally, the impact zone has multiple elongated first ceramic blocks arranged side by side.

[0018] Optionally, the buffer zone may contain a plurality of second ceramic blocks with an aspect ratio between 1:1 and 1:0.7.

[0019] Optionally, a plurality of third ceramic blocks are respectively provided at the ends of the impact zone and the buffer zone that are far apart from each other.

[0020] Optionally, the aspect ratio of the tank is between 1:1.3 and 1:2, and the length directions of the first ceramic block and the second ceramic block are both consistent with the length direction of the tank.

[0021] Optionally, the second ceramic blocks within the buffer zone are arranged in a grid pattern.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] By installing multiple baffles within the tank, multiple filling sections are formed. A ceramic block is placed within each filling section, with the thickness of the ceramic block being at least the depth of the filling section. During use, the side of the tank containing the ceramic block faces upwards, allowing it to withstand the impact from the sintered ore. The high hardness of the ceramic at high temperatures helps resist impact, reducing the damage rate of the entire slope protection structure.

[0024] In addition, the partitions can protect the ceramic block from all sides, thereby improving its impact resistance.

[0025] In this technical solution, the high temperature resistance of ceramics and their ability to maintain high hardness even under high temperature conditions are mainly utilized to improve the strength of the entire slope protection structure. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 2 This is a schematic diagram of the three-dimensional structure of the tank. Detailed Implementation

[0029] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0030] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0031] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0032] Example:

[0033] See Figure 1 and Figure 2This embodiment discloses a slope protection structure for a sintered ore single-roll crusher, including a trough 10, baffles 20, baffles 30, and ceramic blocks 40. The bottom and sides of the trough 10 are sealed with plates, while the top of the trough 10 is open. Multiple mounting holes 50 are provided on the trough 10, and a baffle 30 is provided around each mounting hole 50. The height of the baffle 30 is the same as the depth of the trough 10. Generally, the mounting holes 50 are located on the edges of the trough 10; therefore, baffles 30 are provided on three sides of the mounting holes 50, and the other side is enclosed by a sealing plate.

[0034] Several partitions 20 are installed inside the tank 10. The height of the partitions 20 is the same as the height of the baffles 30 and the same as the depth of the tank 10. The partitions 20 separate multiple filling sections within the tank 10. A ceramic block 40 is installed in each filling section. The thickness of the ceramic block 40 is greater than or equal to the depth of the filling section, such that the top of the ceramic block 40 is at least flush with the top of the tank 10.

[0035] Typically, the thickness of the ceramic block 40 is slightly greater than the depth of the filling section, so that when the ceramic block 40 is impacted during operation, there will be a wear layer.

[0036] In this embodiment, by providing multiple partitions 20 inside the tank 10, multiple filling sections are formed inside the tank 10, and a ceramic block 40 is provided in each filling section, with the thickness of the ceramic block 40 being at least the depth of the filling section.

[0037] During installation, the slope protection structure is installed in the designated position through multiple mounting holes 50 provided on the trough 10.

[0038] During use, the side of the tank 10 with the ceramic block 40 installed faces upwards, so that it can withstand the impact from the sintered ore. The high hardness of the ceramic at high temperature is used to resist the impact and reduce the damage rate of the entire slope protection structure.

[0039] In addition, the partition 20 can protect the ceramic block 40 from all sides, thereby improving the impact resistance of the ceramic block 40.

[0040] In this technical solution, the high temperature resistance of ceramics and their ability to maintain high hardness even under high temperature conditions are mainly utilized to improve the strength of the entire slope protection structure.

[0041] Preferably, the trough 10, baffle 30 and partition 20 are all made of steel. After ceramic blocks 40 are placed in the filling area, the entire slope protection structure is very heavy and cannot be moved by human power. Therefore, multiple lifting lugs are set (welded) around the trough 10 to facilitate the movement of the slope protection structure by lifting machinery such as electric hoists.

[0042] In one specific embodiment:

[0043] One end of the trough 10 is the impact zone 11, and the other end is the buffer zone 12. When installing the slope protection, the impact zone 11 is set at the position that mainly bears the impact of sintered ore, and the buffer zone 12 is downstream of the impact zone 11. In addition, the filling density of the impact zone 11 is greater than the filling density of the buffer zone 12.

[0044] This embodiment increases the density of ceramic blocks 40 in the impact zone 11 and makes the baffles 20 more densely distributed, resulting in better protection for the ceramic blocks 40 and thus enhancing the slope's impact resistance. Furthermore, even if individual ceramic blocks 40 in the impact zone 11 are damaged, their small size allows for faster replacement.

[0045] In another specific embodiment:

[0046] Since the impact zone 11 bears the greatest impact force, the number of mounting holes 50 in the impact zone 11 is set to twice the number of mounting holes 50 in the buffer zone 12 to improve the connection stability between the impact zone 11 and the mounting area.

[0047] In another specific embodiment:

[0048] Because the contact area between the sintered ore and the slope protection structure is small, the area of ​​the impact zone 11 is designed to be smaller than the area of ​​the buffer zone 12, so as to reduce the amount of installation of the baffle 20 and reduce the amount of welding work between the entire tank 10 and the baffle 20.

[0049] In another specific embodiment:

[0050] The impact zone 11 has multiple elongated first ceramic blocks 41 arranged side by side. The impact force on the impact zone 11 has a downward component. Therefore, designing the first ceramic blocks 41 of the impact zone 11 as elongated can enhance the bearing capacity of the first ceramic blocks 41 in the downward direction.

[0051] The buffer zone 12 contains multiple second ceramic blocks 42 with an aspect ratio between 1:1 and 1:0.7. The second ceramic blocks 42 in the buffer zone 12 are designed with a square-like structure to reduce the difficulty of installation. Preferably, the second ceramic blocks 42 in the buffer zone 12 are arranged in a grid pattern.

[0052] In addition, multiple third ceramic blocks 43 are respectively provided at the ends of the impact zone 11 and the buffer zone 12 that are far apart from each other. By providing the third ceramic blocks 43, the first ceramic block 41 and the second ceramic block 42 can be supported, and the outward expansion force of the first ceramic block 41 and the second ceramic block 42 can be distributed.

[0053] Preferably, the aspect ratio of the tank 10 is between 1:1.3 and 1:2, and the length directions of the first ceramic block 41 and the second ceramic block 42 are both consistent with the length direction of the tank 10. The purpose of designing the tank 10 as a rectangular structure is the same as that of the elongated first ceramic block 41.

[0054] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A slope protection structure for a sintered ore single-roll crusher, characterized in that, include: The tank body is sealed with plates on all sides and bottom, and has an open top. The tank body is provided with multiple mounting holes, and baffles are provided around the mounting holes. Several partitions are provided in the tank, and several filling sections are separated in the tank; Multiple ceramic blocks are respectively disposed in each of the filling sections; The thickness of the ceramic block is greater than or equal to the depth of the filling section.

2. The slope protection structure of the sintered ore single-roll crusher according to claim 1, characterized in that, The tank is equipped with multiple lifting lugs around its perimeter.

3. The slope protection structure of the sintered ore single-roll crusher according to claim 1, characterized in that, One end of the tank is an impact zone, and the other end is a buffer zone. The filling density of the impact zone is greater than that of the buffer zone.

4. The slope protection structure of the sintered ore single-roll crusher according to claim 3, characterized in that, The number of mounting holes in the impact zone is twice the number of mounting holes in the buffer zone.

5. The slope protection structure of the sintered ore single-roll crusher according to claim 3, characterized in that, The area of ​​the impact zone is smaller than the area of ​​the buffer zone.

6. The slope protection structure of the sintered ore single-roll crusher according to claim 3, characterized in that, The impact zone contains multiple elongated first ceramic blocks arranged side by side.

7. The slope protection structure of the sintered ore single-roll crusher according to claim 6, characterized in that, The buffer zone contains multiple second ceramic blocks with aspect ratios between 1:1 and 1:0.

7.

8. The slope protection structure of the sintered ore single-roll crusher according to claim 7, characterized in that, Multiple third ceramic blocks are respectively provided at the ends of the impact zone and the buffer zone that are far apart from each other.

9. The slope protection structure of the sintered ore single-roll crusher according to claim 7, characterized in that, The aspect ratio of the trough is between 1:1.3 and 1:2, and the length directions of the first ceramic block and the second ceramic block are both consistent with the length direction of the trough.

10. The slope protection structure of the sintered ore single-roll crusher according to claim 7, characterized in that, The second ceramic blocks within the buffer zone are arranged in a grid pattern.

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