Belly groove type sintering machine trolley grid section

Abstract

The utility model belongs to the technical field of grate bars for sintering, and particularly relates to a web groove type sintering machine trolley grate bar. The grid section comprises a grid section body which is horizontally arranged, a reinforcing section is arranged at the middle section position of the grid section body, and web grooves are formed in the positions from the reinforcing section to the tops of the grid section bodies at the two ends of the grid section body in the length direction of the grid section body. One section of the web ditch close to the reinforcing section is a groove penetrating through the upper surface and the lower surface of the grid section body, and the rest part of the web ditch is a shallow ditch which does not penetrate through the upper surface and the lower surface of the grid section body. Compared with a traditional trolley grid section, the trolley grid section is simple in structure and convenient to assemble, the air passing area of the trolley grid section can be effectively increased under the matching design of the web groove, and the air passing resistance of the trolley grid section is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of grate bars used for sintering, in particular to a grate bar for a belly groove type sintering machine trolley. Background Art

[0002] my country's annual blast furnace ironmaking capacity is close to 1 billion tons, and sintered ore is the main raw material. The main processing equipment for sintered ore is the sintering machine. Sintering technology is developing in the direction of large-scale and thick material layers. The thickness of the material layer processed by the sintering machine has developed from the original 500mm to 900-1000mm. At present, the thickness of the material layer of most sintering machines is about 900mm.

[0003] Thick-bed sintering can improve the quality of sintered ore, reduce energy consumption and pollutant emissions, but as the bed thickens, the resistance of sintering air passing through the bed increases, and the air permeability of the bed deteriorates, thus affecting the quality of sintered ore. Therefore, solving the air permeability problem of the bed is the core of thick-bed sintering. At present, increasing the proportion of large particles in the raw material and reducing the air resistance of the trolley grate are both effective means to solve the air permeability problem of the raw material. Utility Model Content

[0004] In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is: to provide a grate bar of a belly groove type sintering machine trolley, which can effectively increase the wind passing area of ​​the trolley grate bar and reduce the wind passing resistance of the trolley grate bar.

[0005] The described belly groove type sintering machine trolley grate comprises a horizontally arranged grate body, a reinforcement section is arranged at the middle section of the grate body, belly grooves are provided along the length direction of the grate body from the reinforcement section to the top of the grate body at both ends of the grate body; a section of the belly groove near the reinforcement section is a groove penetrating the upper and lower surfaces of the grate body, and the rest is a shallow groove that does not penetrate the upper and lower surfaces of the grate body.

[0006] Furthermore, locking hooks for fixing to the trolley body are fixed at the bottom of both ends of the grate bar body.

[0007] Furthermore, side blocks are provided on the front and rear side surfaces at both ends of the grate bar body.

[0008] Furthermore, the groove is located in the grate body between the two locking hooks.

[0009] Furthermore, the outer side surface of the side stopper on the same side of the grate body and the outer side surface of the reinforcement section on the same side are on the same vertical plane.

[0010] Furthermore, the two side blocks at each end of the grate body are symmetrically arranged, and the two side blocks on the same side of the grate body are symmetrically arranged.

[0011] Furthermore, the area between the side stopper and the corresponding reinforcement section is a half side channel. When the two grate bars are assembled together, the corresponding two half side channels are combined into one side channel, and the structure of the side channel is consistent with that of the belly groove.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] Compared with the traditional trolley grate bars, the utility model has a simple structure and is easy to assemble. With the coordinated design of the belly groove, the wind passing area of ​​the trolley grate bars can be effectively increased and the wind passing resistance of the trolley grate bars can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

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

[0017] Figure 3 for Figure 2 A schematic diagram of a top view structure;

[0018] Figure 4 for Figure 2 Left view rear enlarged structural diagram;

[0019] Figure 5 This is a schematic diagram of the transverse cross-sectional structure of the utility model;

[0020] Figure 6 This is a schematic diagram of the installation structure of the utility model.

[0021] Figure numerals: 1. grate body; 2. reinforcement section; 3. belly groove; 4. side stopper; 5. locking hook; 6. side channel; 7. trolley baffle; 8. mixture; 9. trolley body. DETAILED DESCRIPTION

[0022] The present disclosure is further described in detail below in conjunction with the accompanying drawings and implementations. It is understood that the specific implementations described herein are only used to explain the relevant content, rather than to limit the present disclosure. It should also be noted that, for ease of description, only the parts related to the present disclosure are shown in the accompanying drawings.

[0023] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure may be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] Example

[0025] The grate bars of a belly groove type sintering machine trolley described in this embodiment are as follows: Figures 1 to 5 As shown, it comprises a horizontally arranged grate bar body 1, wherein a reinforcement section 2 is arranged at the middle section of the grate bar body 1, and a ventral groove 3 is provided along the length direction of the grate bar body 1 from the reinforcement section 2 to the top of the grate bar body 1 at both ends; the ventral groove 3 near the reinforcement section 2 has a section that penetrates the upper and lower surfaces of the grate bar body 1 (see Figure 5 As shown), the rest are shallow grooves that do not penetrate the upper and lower surfaces of the grate body 1.

[0026] like Figure 1 , Figure 2 and Figure 4 As shown, in order to facilitate the connection with the trolley body 9, locking hooks 5 for fixing with the trolley body 9 are fixed at the bottom of both ends of the grate bar body 1.

[0027] In order to further improve the air flow capacity of the assembled grate bar body 1 , side blocks 4 are provided on both the front and rear side surfaces at both ends of the grate bar body 1 .

[0028] The groove is located in the grate body 1 between the two locking hooks 5, which is convenient for wind passing in the later stage and effectively reduces wind resistance.

[0029] For easy installation, the outer side surface of the side block 4 on the same side of the grate body 1 is on the same vertical plane as the outer side surface of the reinforcement section 2 on the same side; the two side blocks 4 at each end of the grate body 1 are symmetrically arranged, and the two side blocks 4 on the same side of the grate body 1 are symmetrically arranged.

[0030] like Figure 3 As shown, in order to further ensure the air passing capacity, the area between the side block 4 and the corresponding reinforcement section 2 is a half side channel. When the two grate bars 1 are assembled together, the corresponding two half side channels are combined into a side channel 6, and the structure of the side channel 6 is consistent with the structure of the belly groove 3.

[0031] In the working state of this embodiment, Figure 6As shown, the grate bar body 1 is fixedly mounted on the trolley body 9 by means of the locking hooks 5 provided at both ends thereof, and a number of grate bar bodies 1 are assembled until the entire trolley body 9 is covered. The side blocks 4 of two adjacent grate bar bodies 1 fit each other, and the side channels 6 at the two locations form a complete channel, the structure of which is the same as the ventral groove 3. Trolley baffles 7 are installed on both sides of the trolley body 9, and the trolley baffles 7 are used to block the mixture 8 on both sides. The mixture 8 is placed above the grate bar body 1 with the ventral groove 3, and the thickness is usually 700 to 900 mm. The trolley body 9 is placed on the wind box of the sintering machine as a whole. The wind box forms a negative pressure of 17,000 to 20,000 Pa under the action of the main exhaust fan. Due to the negative pressure, the sintering air enters the mixture 8 from the upper surface of the mixture 8, penetrates the mixture layer, and enters the wind box through the ventral groove 3 and the side channel 6. The structure designed in this embodiment has the belly groove 3, and compared with the traditional trolley grate, the air flow area is increased by about 1 times, which can effectively improve the air flow capacity of the grate and increase the air permeability of the material layer.

[0032] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments / methods or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments / methods or examples described in this specification and the features of the different embodiments / methods or examples, unless they are contradictory.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A grate bar for a belly groove type sintering machine trolley, comprising a horizontally arranged grate bar body (1), characterized in that: A reinforcement section (2) is provided at the middle of the grate bar body (1), and a ventral groove (3) is provided along the length direction of the grate bar body (1) from the reinforcement section (2) to the top of the grate bar body (1) at both ends of the grate bar body (1); a section of the ventral groove (3) near the reinforcement section (2) is a groove penetrating the upper surface and the lower surface of the grate bar body (1), and the rest of the section is a shallow groove that does not penetrate the upper surface and the lower surface of the grate bar body (1).

2. The grate bar of the belly groove type sintering machine trolley according to claim 1, characterized in that: The bottoms of both ends of the grate bar body (1) are fixed with locking hooks (5) for fixing with the trolley body (9).

3. The grate bar of the belly groove type sintering machine trolley according to claim 1 or 2, characterized in that: Side blocks (4) are provided on the front and rear side surfaces at both ends of the grate bar body (1).

4. The grate bar of the belly groove type sintering machine trolley according to claim 2, characterized in that: The groove is located in the grate body (1) between the two locking hooks (5).

5. The grate bar of the belly groove type sintering machine trolley according to claim 3, characterized in that: The outer side surface of the side stopper (4) located on the same side of the grate bar body (1) and the outer side surface of the reinforcement section (2) on the same side are on the same vertical plane.

6. The grate bar of the belly groove type sintering machine trolley according to claim 3, characterized in that: The two side blocks (4) at each end of the grate body (1) are symmetrically arranged, and the two side blocks (4) on the same side of the grate body (1) are symmetrically arranged.

7. The grate bar of the belly groove type sintering machine trolley according to claim 5, characterized in that: The area between the side stopper (4) and the corresponding reinforcement section (2) is a half side channel. When the two grate bars (1) are assembled together, the corresponding two half side channels are combined into a side channel (6). The structure of the side channel (6) is consistent with that of the belly groove (3).

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