Wear-resistant feeding groove of circular cooler

Abstract

The utility model discloses a wear-resistant circular cooler feed trough, which comprises a cylindrical main body, the top end of the main body is provided with a feed port for receiving sintered ore, and the bottom of the main body is provided with a discharge port; the material containing buffer table is of a U-shaped groove structure, and a U-shaped opening of the material containing buffer table is connected with the discharging opening; a plurality of rectangular flow guide plates which are staggered in the vertical direction are arranged in the main body, three side walls of each flow guide plate are fixedly connected with the inner wall of the main body, the other side wall of each flow guide plate is suspended, and each flow guide plate inclines downwards from one end far away from the suspended side wall to the suspended side wall. According to the wear-resistant feeding groove of the circular cooler, the fall of sintered ore is reduced, the wear resistance is good, the service life can be prolonged, and the production continuity is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of mineral material transportation equipment, in particular to a wear-resistant annular cooler feeding trough. Background Art

[0002] Sintering is the process of transforming powdered iron ore into a material with physical properties and chemical composition that meet the requirements of the subsequent ironmaking process. After the iron ore powder is heated, ignited, ventilated, and burned in the sintering machine's igniter, the resulting sintered ore, along with the rotation of the trolley, is crushed by a single-roll crusher, and continuously falls from the tail of the machine into the feed chute of the ring cooler. The hot sintered ore enters the feed chute at a temperature of approximately 800°C, with a feed particle size of less than 150mm and a bulk density of 1.7t / m³. For example, in a 450㎡ sintering machine, the drop from the tail of the machine to the top of the feed chute is 3.5-4.5m, and the feed chute is 7.5m high. Therefore, the sintered ore causes severe wear and tear in the feed chute, typically requiring maintenance every three months.

[0003] The interior of the existing annular cooler feed trough mainly adopts a mixed structure of ordinary steel plates, steel sections and wear-resistant steel plates. Since the feed trough is directly subjected to the erosion and wear of the high-temperature sintered ore falling from the single-roll crusher at the tail of the machine, the side walls and lower outlet of the feed trough, especially the left and right side walls and the discharge port, are prone to wear, cracking and wear-through problems. The sintering machine system needs to be shut down for maintenance, which seriously affects continuous production and causes production losses. Utility Model Content

[0004] Based on this, it is necessary to provide a wear-resistant ring cooler feed trough to address the above technical problems, which reduces the drop of sintered ore and has good wear resistance, can extend the service life and ensure production continuity.

[0005] The utility model provides a wear-resistant annular cooler feed trough, comprising:

[0006] The main body is cylindrical, with a feed port for receiving sintered ore at the top and a discharge port at the bottom;

[0007] The material buffer table has a U-shaped groove structure, and the U-shaped opening of the material buffer table is connected to the discharge port;

[0008] The main body is provided with a plurality of rectangular guide plates arranged in a staggered manner in the vertical direction. Three side walls of the guide plates are fixedly connected to the inner wall of the main body, and the other side wall is suspended. The guide plates are inclined downward from one end away from the suspended side wall to the suspended side wall.

[0009] The side wall of the main body on which the guide plate is installed is defined as the first side wall, the distance between the two first side walls is L1, the distance between the suspended side wall of the guide plate and the side wall opposite to the suspended side wall is L2, and 1 / 2L1≤L2≤3 / 4L1.

[0010] In one embodiment, one side wall of the material buffer table is an inclined side wall, and the other side wall is a vertical side wall, and the inclined side wall is inclined in a direction away from the vertical side wall along the horizontal direction;

[0011] A side of the vertical side wall close to the inclined side wall is fixed with a wear-resistant layer by bolts.

[0012] In one embodiment, the wear-resistant layer is composed of a plurality of square countersunk wear-resistant blocks.

[0013] In one embodiment, the inclination angles of the guide plate and the inclined side wall are both 30° to 60°.

[0014] In one embodiment, the guide plate and the wear-resistant layer are both made of KmTBCr26 high-chromium wear-resistant white cast iron.

[0015] The beneficial effects of the present invention are as follows: the annular cooler feed trough of the present invention is provided with a plurality of rectangular guide plates arranged in a vertically staggered manner within the main body. Sintered ore can fall downward along the guide plates, which can reduce the drop height of the sintered ore each time it falls, thereby reducing the intensity of the scouring of the sintered ore on the inner wall of the feed trough. In addition, the material buffer table can act as a buffer for the falling sintered ore, reducing the flow rate of the sintered ore, further reducing the intensity of the scouring of the sintered ore on the inner wall of the feed trough. The guide plates and wear-resistant layer can improve the wear resistance of the annular feed trough. The annular feed trough of the present invention has a long service life and can ensure the continuity of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a feed trough for a wear-resistant annular cooler provided in an embodiment of the present invention;

[0017] Figure 2 for Figure 1 One of the cross-sectional structural diagrams along the vertical plane.

[0018] Description of the accompanying drawings: 100, main body; 101, feed port; 102, discharge port; 103, guide plate; 104, first side wall; 200, material buffer platform; 201, wear-resistant layer. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0020] It should be noted that in the description of this utility model, “upper”, “lower”, “top”, “bottom”, orientation or position relationship is based on the attached Figure 1Regarding the orientation or positional relationship shown, it should be understood that these orientation terms are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0021] In one embodiment, Figure 1 Shown and Figure 2 As shown, the wear-resistant annular cooler feed trough of this embodiment includes:

[0022] The main body 100 is cylindrical, with a feed port 101 for receiving sintered ore at the top and a discharge port 102 at the bottom. The material buffer platform 200 is a U-shaped groove structure, with the U-shaped opening of the material buffer platform 200 connected to the discharge port 102.

[0023] Specifically, the cross section of the main body 100 is rectangular.

[0024] The interior of the main body 100 is provided with a plurality of rectangular deflectors 103 arranged in a staggered manner along a vertical direction. Three sidewalls of the deflectors 103 are fixedly connected to the inner wall of the main body 100, while the other sidewall is suspended. The deflectors 103 slope downward from the end away from the suspended sidewall to the suspended sidewall. The sidewall of the main body 100 on which the deflectors 103 are mounted is defined as a first sidewall 104. The distance between the two first sidewalls 104 is L1. The distance between the suspended sidewall of the deflector 103 and the sidewall opposite the suspended sidewall is L2, with 1 / 2L1 ≤ L2 ≤ 3 / 4L1.

[0025] Specifically, in this embodiment, the distance between two upper and lower adjacent guide plates 103 is greater than 10 cm.

[0026] Multiple guide plates 103 are arranged in a staggered pattern, allowing the sintered ore to flow along them. This reduces the drop of the sintered ore each time it falls, thereby reducing the impact of the sintered ore on the inner wall of the feed trough. A value of 1 / 2L1 ≤ L2 ≤ 3 / 4L1 prevents the sintered ore from falling directly from the feed port 101 onto the buffer platform 200.

[0027] In one embodiment, one side wall of the material buffer table 200 is an inclined side wall, and the other side wall is a vertical side wall, and the inclined side wall is inclined horizontally away from the vertical side wall; the side of the vertical side wall close to the inclined side wall is fixed with a wear-resistant layer 201 by bolts.

[0028] The inclined side walls of the material buffer platform 200 can accelerate the downward flow of sintered ore. The sintered ore will inevitably collide with the vertical side walls of the material buffer platform 200 during the flow process. A wear-resistant layer 201 is provided on the vertical side walls to well protect the vertical side walls.

[0029] Specifically, wear-resistant layer 201 is composed of multiple square countersunk wear blocks. Each square countersunk wear block is bolted to the vertical sidewall. This provides a tighter connection between the entire wear-resistant layer 201 and the vertical sidewall, making it less likely to fall off. Furthermore, if a square countersunk wear block is impacted, adjacent square countersunk wear blocks can assist in absorbing the impact energy, reducing damage to the impacted square countersunk wear block.

[0030] In one embodiment, the inclination angles of the guide plate 103 and the inclined side wall are both 30° to 60°, which can effectively guide the flow without causing the flow to be too slow.

[0031] Both the guide plate 103 and the wear-resistant layer 201 are made of KmTBCr26 high-chromium, wear-resistant white cast iron. KmTBCr26, a high-chromium, wear-resistant white cast iron with a high carbon content and chromium as the primary alloying element, offers excellent performance, including good hardenability and corrosion resistance, making it suitable for abrasive wear under high impact loads. Using KmTBCr26 high-chromium, wear-resistant white cast iron for the guide plate 103 and the wear-resistant layer 201 enhances the wear resistance of the guide trough and increases its service life.

[0032] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the scope of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A wear-resistant annular cooler feed trough, characterized in that: include: A main body (100), the main body (100) is cylindrical, a top end of the main body (100) is provided with a feed port (101) for receiving sintered ore, and a bottom end of the main body (100) is provided with a discharge port (102); A material holding buffer platform (200), wherein the material holding buffer platform (200) is a U-shaped groove structure, and the U-shaped opening of the material holding buffer platform (200) is connected to the discharge port (102); A plurality of rectangular guide plates (103) arranged in a staggered manner in a vertical direction are provided inside the main body (100), three side walls of the guide plates (103) are fixedly connected to the inner wall of the main body (100), and the other side wall is suspended, and the guide plates (103) are inclined downward from one end away from the suspended side wall to the suspended side wall; The side wall of the main body (100) on which the guide plate (103) is installed is defined as a first side wall (104), the distance between the two first side walls (104) is L1, the distance between the suspended side wall of the guide plate (103) and the side wall opposite to the suspended side wall is L2, and 1 / 2L1≤L2≤3 / 4L1.

2. The wear-resistant annular cooler feed trough according to claim 1, characterized in that: One side wall of the material buffer platform (200) is an inclined side wall, and the other side wall is a vertical side wall, and the inclined side wall is inclined in a direction away from the vertical side wall along the horizontal direction; A wear-resistant layer (201) is fixedly assembled on one side of the vertical side wall close to the inclined side wall by bolts.

3. The wear-resistant annular cooler feed trough according to claim 2, characterized in that: The wear-resistant layer (201) is composed of a plurality of square countersunk wear-resistant blocks spliced ​​together.

4. The wear-resistant annular cooler feed trough according to claim 3, characterized in that: The inclination angles of the guide plate (103) and the inclined side wall are both 30° to 60°.

5. The wear-resistant annular cooler feed trough according to claim 4, characterized in that: The guide plate (103) and the wear-resistant layer (201) are both made of KmTBCr26 high-chromium wear-resistant white cast iron.

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