Grid section structure for sintering steel dust and sludge and sintering pallet thereof

Abstract

The utility model relates to the technical field of metal smelting, and discloses a grid section structure for sintering steel dust and sludge and a sintering machine trolley thereof. The buffering assembly comprises a top plate, a first supporting body and a second supporting body, an elastic piece is arranged at the bottom of the top plate, the top plate is elastically connected with the grid section body through the elastic piece, the bottom of the top plate is fixedly connected with the first supporting body and the second supporting body, and the first supporting body abuts against the second supporting body; the top plate can extrude the first supporting body and the second supporting body to deform in the downward moving process, due to the fact that the first supporting body protrudes out of the second supporting body, the first supporting body can firstly make contact with the grid section body and be extruded by the grid section body to deform, the first supporting body can extrude and push the second supporting body, and lateral supporting is provided for the first supporting body through the second supporting body; and in cooperation with the springs, the huge impact of material falling can be reduced, and the durability of the grid section body and the stability in the material receiving process are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of metal smelting, in particular to a grate structure for sintering steel dust and mud and a sintering machine trolley thereof. Background Art

[0002] The sintering machine trolley is one of the important parts of the sintering machine. The grate bars are one of the main accessories on the sintering machine trolley. The grate bars are arranged in sequence on the crossbeam of the trolley to receive the fallen steel dust and mud.

[0003] The prior art discloses a trolley grate (CN202320283315.6), comprising a grate body, the two ends of the grate body extending outward to form a hanging section, the lower parts of the two ends of the grate body extending downward to form a connecting section, the lower part of the connecting section extending outward to form a supporting section, and at least one section between the hanging section, the connecting section, the supporting section and the trolley beam is provided with a heat insulation part.

[0004] In the prior art, grate bars are used to receive steel dust and mud, that is, to bear weight. Steel dust and mud falling on the grate bars produce strong impact, which will affect the service life and stability of the grate bars. In the prior art, there is also a method of installing a plate on the grate bars, and setting a spring between the plate and the grate bars for buffering. The buffering completely relies on the spring, and there is only one level of buffering. There is a certain room for optimization for the life of the buffering component and the buffering effect.

[0005] For this purpose, we propose a grate structure for steel dust sludge sintering and a sintering machine trolley thereof. Utility Model Content

[0006] The utility model mainly solves the technical problem that the impact buffering effect of the grate bars during the material receiving process is limited, and provides a grate bar structure for steel dust sintering and a sintering machine trolley thereof.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme, a grate structure for steel dust slurry sintering and a sintering machine trolley thereof, comprising:

[0008] The grate body has block structures for installing notches on both sides, and the front and rear walls of the grate body are provided with integrally formed reinforcing ribs;

[0009] A filling column is fixedly arranged on the wall surface of the grate bar body and is used to adjust the distance between two adjacent spans of the grate bar body;

[0010] A buffer component is arranged on the top of the grate body and is used to buffer the impact force of falling materials. The buffer component includes a top plate, a first support body and a second support body. An elastic member is provided at the bottom of the top plate. The top plate is elastically connected to the grate body through the elastic member. The first support body and the second support body are fixedly connected to the bottom of the top plate. The first support body abuts against the second support body. The first support body extends toward the bottom of the top plate and abuts against the top surface of the grate body. The downward movement of the top plate can squeeze the first support body and the second support body to deform.

[0011] As a preferred embodiment of the utility model, the buffer assembly further comprises a sliding block and a vertical channel, the sliding block is fixedly arranged at the bottom of the top plate, the vertical channel is opened on the top surface of the grate body, and the sliding block and the elastic member are both located in the vertical channel.

[0012] As a preferred embodiment of the utility model, the sliding block is integrally formed with the top plate, the sliding block and the vertical channel cooperate with each other, the sliding block and the vertical channel are slidably connected, and the elastic member is arranged below the sliding block.

[0013] As a preferred embodiment of the present invention, the sliding block forms a rectangular block structure, the height of the sliding block is less than the depth of the vertical channel, and the elastic member includes a spring but is not limited to a spring.

[0014] As a preferred embodiment of the utility model, the first support body and the second support body are both arc-shaped plate structures, the circumferential length of the first support body is greater than the circumferential length of the second support body, the second support body is located on one side of the first support body, the upper end surfaces of the first support body and the second support body are fixedly connected to the bottom of the top plate, the other end surface of the second support body abuts against the convex surface of the first support body, and the lower end of the first support body can abut against the top surface of the grate bar body.

[0015] As a preferred embodiment of the utility model, the buffer assembly also includes a stop groove and an anti-slip rod. The wall surface of the sliding block is provided with the stop groove. The anti-slip rod is detachably connected to the grate bar body. The anti-slip rod extends into the stop groove and limits the sliding block.

[0016] As a preferred embodiment of the utility model, the anti-slip rod forms a rod body structure with a convex U-shaped horizontal cross-section, the wall surface of the grate bar body is provided with an installation channel connected to the vertical channel, the anti-slip rod passes through the installation channel and extends into the vertical channel, the anti-slip rod is locked and fixed to the grate bar body by fasteners, the anti-slip groove forms a rectangular groove, the anti-slip groove is equal in width to the anti-slip rod, and the anti-slip rod slides in the anti-slip groove.

[0017] A sintering machine trolley comprises a trolley body, on which a plurality of grate structures for sintering steel dust and mud are arranged.

[0018] Beneficial Effects

[0019] The utility model provides a grate structure for sintering steel dust and mud and a sintering machine trolley thereof. The utility model has the following beneficial effects:

[0020] 1. The grate body is 7mm apart, which is beneficial to the burning, mineralization rate and air permeability of steel dust. The cloth car guardrail is raised and integrated, which increases the cloth height without affecting the air leakage rate. The ignition temperature is between 950-1020 (lower than the industry), reducing gas consumption, and the air volume is controlled at around 450,000. Coupled with the terminal dust collector, the quality and quantity of steel dust products are guaranteed, and the collection effect of potassium elements is guaranteed.

[0021] 2. The grate structure for sintering steel dust and mud and its sintering machine trolley drive the sliding block to slide down in the vertical channel by squeezing the top plate when the material falls, and the vertical channel squeezes the elastic member. At the same time, the top plate can squeeze the first support body and the second support body to deform during the downward movement. Since the first support body protrudes from the second support body, the first support body will first contact the grate body and be squeezed and deformed by the grate body. The second support body located on one side of the first support body, the inner concave surfaces of the first support body and the second support body, that is, the inner circumferential surfaces face the same direction. Then, when the first support body is deformed and bent, the first support body will squeeze and push the second support body, and the second support body will provide lateral support for the first support body, thereby realizing multi-stage buffering of the falling of the top plate. In combination with the spring, the huge impact of the falling material can be reduced, thereby ensuring the durability of the grate body and the stability during the material receiving process.

[0022] 3. A grate structure for sintering steel dust and mud and a sintering machine trolley thereof, by setting an anti-slip groove, uses fasteners to lock the anti-slip rod and the grate body, the fasteners include but are not limited to bolts, the end of the anti-slip rod will extend into the anti-slip groove, thereby limiting the sliding block, and the length of the anti-slip groove is less than the height of the sliding block, and there is a margin between the upper and lower ends of the anti-slip groove and the top and bottom surfaces of the sliding block, so that the anti-slip rod can limit the sliding block from slipping out of the vertical channel, ensuring the stability of the sliding block after installation, and facilitating the disassembly and assembly of the sliding block to replace the top plate and the sliding block. Secondly, by arranging the anti-slip rod on one side of the sliding block, the top of the top plate remains flat, which is convenient for material connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is one of the overall three-dimensional diagrams of the utility model;

[0024] Figure 2 This is the second overall stereogram of the utility model;

[0025] Figure 3 This is a schematic diagram of a vertical channel provided in the grate bar body of the utility model;

[0026] Figure 4 This is a schematic diagram of the installation of the sliding block and the top plate of the utility model;

[0027] Figure 5 It is a three-dimensional diagram of the anti-drop rod of the utility model.

[0028] Legend: 10, grate bar body; 11, reinforcing ribs; 12, filling column; 20, top plate; 21, sliding block; 22, first support body; 23, second support body; 24, vertical channel; 30, anti-slip groove; 31, anti-slip rod. DETAILED DESCRIPTION

[0029] A grate structure for steel dust sintering and a sintering machine trolley thereof, such as Figure 1 and Figure 2 As shown, including:

[0030] The grate body 10 has block structures for installing notches on both sides, and the front and rear walls of the grate body 10 are provided with integrally formed reinforcing ribs 11;

[0031] like Figure 2 , Figure 3 and Figure 4 As shown, the filling column 12 is fixedly arranged on the wall surface of the grate bar body 10 and is used to adjust the spacing between two adjacent spans of the grate bar body 10. Specifically, the filling column 12 is made of nickel-chromium alloy. Two filling columns 12 are symmetrically arranged on one side wall of the grate bar body 10. The spacing between the two filling columns 12 is 120 mm. The grate structure is formed by abutting a plurality of grate bar bodies 10 in sequence. The spacing between two adjacent grate bar bodies 10 is 7 mm, which is beneficial to the burning, mineralization rate and air permeability of steel dust mud, which will not be described in detail here.

[0032] The buffer assembly is arranged on the top of the grate body 10 and is used to buffer the impact of the falling steel dust and mud. The buffer assembly includes a top plate 20, a first support body 22 and a second support body 23. An elastic member is arranged at the bottom of the top plate 20. The top plate 20 is elastically connected to the grate body 10 through the elastic member. The first support body 22 and the second support body 23 are fixedly connected to the bottom of the top plate 20. The first support body 22 abuts against the second support body 23. The first support body 22 extends downward from the top plate 20 and abuts against the top surface of the grate body 10. The top plate 20 moves downward to squeeze The first support body 22 and the second support body 23 are deformed by pressing, and the sliding block 21 forms a rectangular block structure. The height of the sliding block 21 is less than the depth of the vertical channel 24. The elastic member includes a spring but is not limited to a spring. The first support body 22 and the second support body 23 are both arc-shaped plate structures. The circumference of the first support body 22 is greater than the circumference of the second support body 23. The second support body 23 is located on one side of the first support body 22. The upper end surfaces of the first support body 22 and the second support body 23 are fixedly connected to the bottom of the top plate 20. The other end surfaces of the second support body 23 One end face abuts against the convex surface of the first support body 22, and the lower end of the first support body 22 can abut against the top surface of the grate bar body 10. The elastic member is a spring for example. The steel dust mud falls and pushes the top plate 20 to drive the sliding block 21 to slide down in the vertical channel 24. The vertical channel 24 squeezes the elastic member. At the same time, the top plate 20 can squeeze the first support body 22 and the second support body 23 to deform during the downward movement. Since the first support body 22 protrudes from the second support body 23, the first support body 22 will first contact the grate bar body 10 and be squeezed by the grate bar body 10. The second support body 23 is located on one side of the first support body 22, and the inner concave surfaces of the first support body 22 and the second support body 23, that is, the inner circumferential surfaces face the same direction. Then, when the first support body 22 is deformed and bent, the first support body 22 will squeeze and push the second support body 23, and the second support body 23 will provide lateral support for the first support body 22, thereby realizing multi-stage buffering of the falling of the top plate 20, and cooperating with the spring, it can reduce the huge impact of the falling steel dust and mud, thereby ensuring the durability of the grate bar body 10 and the stability during the material connection process.

[0033] like Figure 3 and Figure 4As shown, the buffer assembly also includes a sliding block 21 and a vertical channel 24. The sliding block 21 is fixedly arranged at the bottom of the top plate 20. The top surface of the grate body 10 opens the vertical channel 24. The sliding block 21 and the elastic member are both located in the vertical channel 24. The sliding block 21 and the top plate 20 are integrally formed. The sliding block 21 and the vertical channel 24 cooperate with each other. The sliding block 21 and the vertical channel 24 are slidably connected. The elastic member is arranged below the sliding block 21. The sliding block 21 is pushed down by the top plate 20. The sliding block 21 slides in the vertical channel 24 and squeezes the spring to achieve primary buffering. The vertical channel 24 limits the sliding block 21 to ensure the stability of the vertical displacement of the top plate 20. The sliding block 21 is a rectangular block, and the top plate 20 is a rectangular plate. The cross-section of the top plate 20 is equal to that of the grate body 10. It has the characteristics of buffering and protecting the grate body 10 and replacing the grate body 10 from being hit, thereby extending the service life of the grate body 10 and reducing the maintenance frequency.

[0034] like Figure 4 and Figure 5 As shown, the buffer assembly also includes an anti-slip groove 30 and an anti-slip rod 31. The wall surface of the sliding block 21 is provided with an anti-slip groove 30, and the anti-slip rod 31 is detachably connected to the grate bar body 10. The anti-slip rod 31 extends into the anti-slip groove 30 and limits the sliding block 21. The anti-slip rod 31 forms a rod body structure with a convex cross-section. The wall surface of the grate bar body 10 is provided with an installation channel connected to the vertical channel 24. The anti-slip rod 31 extends through the installation channel into the vertical channel 24. The anti-slip rod 31 is locked and fixed to the grate bar body 10 by fasteners. The anti-slip groove 30 forms a rectangular groove. The anti-slip groove 30 and the anti-slip rod 31 are of the same width. The anti-slip rod 31 slides in the anti-slip groove 30. In this scheme, as a supplement to the above scheme, through An anti-slip groove 30 is provided, and an anti-slip rod 31 is locked to the grate bar body 10 by means of fasteners. The fasteners include but are not limited to bolts. The end of the anti-slip rod 31 will extend into the anti-slip groove 30, thereby limiting the sliding block 21. The length of the anti-slip groove 30 is less than the height of the sliding block 21. There is a margin between the upper and lower ends of the anti-slip groove 30 and the top and bottom surfaces of the sliding block 21, so that the anti-slip rod 31 can limit the sliding block 21 from slipping out of the vertical channel 24, thereby ensuring the stability of the sliding block 21 after installation, and facilitating the disassembly and assembly of the sliding block 21 to replace the top plate 20 and the sliding block 21. Secondly, by arranging the anti-slip rod 31 on one side of the sliding block 21, the top of the top plate 20 is kept flat, which is convenient for material connection.

[0035] A sintering machine trolley comprises a trolley body, on which a plurality of grate structures for sintering steel dust and sludge are arranged. By arranging the grate structures for sintering steel dust and sludge, the top of the trolley body, i.e., the material receiving surface, can have a good multi-level buffering effect, and the protection, replacement and maintenance of the grate body 10 are more comprehensive and convenient.

[0036] The working principle of the utility model is as follows: by laying a plurality of grate bar bodies 10 on the top of the trolley body, a certain gap is formed between two adjacent grate bar bodies 10 for the burning and ventilation of steel dust mud;

[0037] During the feeding stage, the steel dust and mud falls and pushes the top plate 20, driving the sliding block 21 to slide down in the vertical channel 24. The vertical channel 24 squeezes the elastic member. At the same time, the top plate 20 can squeeze the first support body 22 and the second support body 23 to deform during the downward movement. Since the first support body 22 protrudes from the second support body 23, the first support body 22 will first contact the grate bar body 10 and be squeezed and deformed by the grate bar body 10. The second support body 23 located on one side of the first support body 22, the inner concave surface of the first support body 22 and the second support body 23, that is, the inner circumferential surface faces the same direction. Therefore, when the first support body 22 is deformed and bent, the first support body 22 will squeeze and push the second support body 23. 23, the second support body 23 is used to provide lateral support for the first support body 22, thereby realizing multi-level buffering of the falling of the top plate 20, and the anti-slip rod 31 is locked with the grate bar body 10 by fasteners, and the fasteners include bolts but are not limited to bolts. The end of the anti-slip rod 31 will extend into the anti-slip groove 30, thereby limiting the sliding block 21, and the length of the anti-slip groove 30 is less than the height of the sliding block 21. There is a margin between the upper and lower ends of the anti-slip groove 30 and the top and bottom surfaces of the sliding block 21, so that the anti-slip rod 31 can limit the sliding block 21 from slipping out of the vertical channel 24, thereby ensuring the stability of the sliding block 21 after installation. This solution is suitable for the laying and sintering of steel dust.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A grate structure for sintering steel dust, characterized in that: include: The grate body (10) has block structures for installing notches on both sides, and the front and rear walls of the grate body (10) are both provided with integrally formed reinforcing ribs (11); A filling column (12) is fixedly arranged on the wall surface of the grate bar body (10) and is used to adjust the distance between two adjacent spans of the grate bar body (10); A buffer component is arranged on the top of a grate body (10) and is used to buffer the impact force of falling materials. The buffer component comprises a top plate (20), a first support body (22) and a second support body (23). An elastic member is arranged at the bottom of the top plate (20). The top plate (20) is elastically connected to the grate body (10) through the elastic member. The first support body (22) and the second support body (23) are fixedly connected to the bottom of the top plate (20). The first support body (22) contacts the second support body (23). The first support body (22) extends toward the bottom of the top plate (20) and contacts the top surface of the grate body (10). The downward movement of the top plate (20) can squeeze the first support body (22) and the second support body (23) to deform.

2. The grate structure for sintering steel dust and sludge according to claim 1, characterized in that: The buffer assembly further comprises a sliding block (21) and a vertical channel (24); the sliding block (21) is fixedly arranged at the bottom of the top plate (20); the vertical channel (24) is provided on the top surface of the grate bar body (10); and the sliding block (21) and the elastic member are both located in the vertical channel (24).

3. The grate structure for sintering steel dust and sludge according to claim 2, characterized in that: The sliding block (21) and the top plate (20) are integrally formed, the sliding block (21) and the vertical channel (24) are used in cooperation with each other, the sliding block (21) and the vertical channel (24) are slidably connected, and the elastic member is arranged below the sliding block (21).

4. The grate structure for sintering steel dust and sludge according to claim 2, characterized in that: The sliding block (21) forms a rectangular block structure, the height of the sliding block (21) is less than the depth of the vertical channel (24), and the elastic member includes a spring but is not limited to a spring.

5. The grate structure for sintering steel dust and sludge according to claim 1, characterized in that: The first support body (22) and the second support body (23) are both arc-shaped plate structures, the circumferential length of the first support body (22) is greater than the circumferential length of the second support body (23), the second support body (23) is located on one side of the first support body (22), the upper end surfaces of the first support body (22) and the second support body (23) are fixedly connected to the bottom of the top plate (20), the other end surface of the second support body (23) abuts against the convex surface of the first support body (22), and the lower end of the first support body (22) can abut against the top surface of the grate bar body (10).

6. The grate structure for sintering steel dust and sludge according to claim 2, characterized in that: The buffer assembly further comprises a stop groove (30) and an anti-slip rod (31); the wall surface of the sliding block (21) is provided with the stop groove (30); the anti-slip rod (31) is detachably connected to the grate bar body (10); the anti-slip rod (31) extends into the stop groove (30) and limits the sliding block (21).

7. The grate structure for sintering steel dust and sludge according to claim 6, characterized in that: The anti-slip rod (31) forms a rod body structure with a convex shape in horizontal cross section; a mounting channel connected to the vertical channel (24) is provided on the wall surface of the grate bar body (10); the anti-slip rod (31) passes through the mounting channel and extends into the vertical channel (24); the anti-slip rod (31) is locked and fixed to the grate bar body (10) by a fastener; the anti-slip groove (30) forms a rectangular groove; the anti-slip groove (30) and the anti-slip rod (31) have the same width; and the anti-slip rod (31) slides in the anti-slip groove (30).

8. A sintering machine trolley, comprising a trolley body, characterized in that: The trolley is provided with a plurality of grate structures for sintering steel dust and sludge as described in any one of claims 1-7.

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