Grid section for improving sintering air permeability, sintering machine trolley and sintering process
A technology of air permeability and machine trolley, which is applied in the field of grate, sintering machine trolley and sintering process, which can solve the problems of poor sintering air permeability, heat concentration of trolley beams, thermal fatigue damage, and low thickness of material layer, etc., and achieve low cost , Increase sintering air permeability, high sintering efficiency
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Embodiment 1
[0030] This embodiment provides a grate bar for improving sintered gas permeability, including a grate bar body 1, which is a traditional grate bar body 1 in a plate shape, and a beam clamp structure is provided on the grate bar body 1. It is used to set the grates on the trolley body 5. There is a gap between adjacent grate bars. The sintered material is arranged on a platform composed of multiple grate bars. The negative pressure is drawn under the platform, and then the air passes through the sintered material. Access under the platform through the gap between adjacent grates. The air permeability affects the vertical sintering speed, the sintering productivity, and the quality of the sintered ore. The thickness of the sintered material is affected by the air permeability of the material layer. If the air permeability is poor, the sintering speed is slow and the quality of the sintered ore is not good. Increasing the thickness of the sintered material will increase the outp...
Embodiment 2
[0045] This embodiment provides a sintering machine trolley, refer to image 3 , the sintering machine trolley includes a trolley body 5, and a plurality of first grate bars 6 are arranged on the trolley body 5. The first grate bars 6 are traditional grate bars, and the trolley body 5 is also provided with a plurality of 1 grate bar, multiple grate bars and traditional grate bars are laid on the trolley body 5 according to the requirements of the trolley, and further, the number of the first 6 grate bars spaced between adjacent grate bars is the same, so that the grate bars can be spaced Set on the trolley body 5.
[0046] When in use, the sintered material is submerged on the top of the air intake plate 2 of the grate, so that the air flow can pass through the sintered material and then enter the cavity of the air intake plate 2. At this time, the sintered material not only has enhanced vertical air permeability, but also has Horizontal air permeability, high sintering effic...
Embodiment 3
[0049] This embodiment provides an air-guided sintering process, which includes:
[0050] Step 1: laying the sintered material on the sintering machine trolley, so that the sintered material does not pass the top of the air inlet plate 2;
[0051] Step 2: Start sintering until the sintering is completed. During the sintering process, move the sintering trolley to draw air under negative pressure under the platform of the sintering trolley. The air enters the bottom of the platform through the gap between the grate bars and the exhaust channel of the air intake plate 2.
[0052] In this embodiment, the interior of the sintering material on the sintering machine trolley not only has the vertical airflow channels provided by the sintering machine trolley, but also has multiple horizontal airflow channels provided by the air inlet plate 2 . The single horizontal airflow channel is centered on the air intake plate 2, and the airflow can enter the air intake plate 2 in an approximat...
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