Belt type roasting machine trolley and sealing device thereof

Abstract

The utility model provides a belt type roasting machine trolley and a sealing device thereof. The sealing device of the belt type roasting machine trolley comprises a falling rod sealing device and a sealing plate located below the falling rod sealing device, the falling rod sealing device comprises a falling rod and a bracket for supporting the falling rod, and an open groove is formed in the sealing plate to be matched with the bottom face of the falling rod. According to the sealing device of the belt type roasting machine trolley, an original flat sealing plate is designed into a plate with a groove, a new sealing layer is formed, the sealing effect is better, the air leakage loss of the trolley can be greatly reduced, and the sealing effect is further improved by arranging the refractory fiber cotton between the two falling rods.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing devices for pallet cars of roasting machines, and particularly relates to a pallet car of a traveling grate roasting machine and a sealing device thereof. Background Art

[0002] The traveling grate roasting method for pelletizing iron ore is a method for roasting iron ore pellets using a traveling grate. When roasting pelletized ore, the green pellets are relatively stationary on the traveling grate (pallet car), and heat and mass are transferred to the green pellets by the gas medium flowing from the top and the bottom, so as to complete the drying, roasting and cooling of the pelletized ore. The pallet car of the traveling grate roasting machine is the main operating component of the traveling grate roasting machine and plays an indispensable role in the entire technological process. The pallet car mainly consists of a pallet car body, wheels, a drop rod sealing device, grate bars, retaining plates, heat insulation pads, etc.

[0003] The body structure of the pallet car of the traveling grate roasting machine is a fully machined and flat car body. At present, most of the sealing devices of the traveling grate roasting machine adopt drop rod seals. The drop rod sealing device is hung and installed at the lower part of the side wall of the hood system, and slides in contact with the sealing plates on both sides of the pallet car through the drop rod device to achieve the sealing of the working area of the roasting machine.

[0004] However, in the prior art, since the main structure of the drop rod device is a welded part, machined part and connecting fastener, and it is in hard friction with the pallet car sealing plate. Since the sealing is mainly achieved by the friction between metals, there are many gaps, resulting in insufficient sealing, serious air leakage, heat loss of the materials in the pallet car, affecting the overall heat preservation effect of the pallet car, and it is also easy to have a jamming phenomenon. Summary of the Utility Model

[0005] The main purpose of the utility model is to provide a pallet car of a traveling grate roasting machine and a sealing device thereof, aiming to improve the sealing performance of the pallet car.

[0006] To achieve the above purpose, the utility model provides a sealing device for a pallet car of a traveling grate roasting machine, which includes a drop rod sealing device and a sealing plate located below the drop rod sealing device. The drop rod sealing device includes a drop rod and a bracket for supporting the drop rod. A slot is formed on the sealing plate to cooperate with the bottom surface of the drop rod.

[0007] Preferably, refractory fiber cotton is embedded above the slot.

[0008] Preferably, the drop rod sealing devices are arranged on both sides of the pallet car, and each drop rod sealing device includes at least two drop rods. Refractory fiber cotton is installed in the gap between the two drop rods.

[0009] Preferably, the refractory fiber cotton is installed between the two drop rods through bolts.

[0010] Preferably, the ends of the refractory fiber cotton between the two drop rods extend 10 mm to 20 mm outside the drop rods.

[0011] Preferably, the width of the gap between the side wall of the slotted opening and the outer side surface of the dropping rod is 6 mm to 10 mm.

[0012] Preferably, the depth of the slotted opening is 10 mm to 50 mm.

[0013] Preferably, the two dropping rods of the dropping rod sealing device are connected by an elastic member.

[0014] The present utility model further provides a pallet car of a traveling grate, which includes the above-mentioned sealing device.

[0015] The sealing device of the pallet car of the traveling grate provided by the present utility model has the following beneficial effects:

[0016] 1) By designing the original flat sealing plate into a plate with grooves, a new sealing layer is formed, so that the sealing effect is better, and the air leakage loss of the pallet car can be greatly reduced;

[0017] 2) By arranging refractory fiber cotton between the two dropping rods, the sealing effect is further improved;

[0018] 3) This sealing device can greatly reduce the air leakage loss of the pallet car and the heat loss of the materials in the pallet car, and has an energy-saving effect to a certain extent, meeting the national requirements for green energy conservation in the iron and steel industry. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the pallet car of the traveling grate of the present utility model;

[0020] Figure 2 is a partial structural schematic diagram of the pallet car of the traveling grate of the present utility model.

[0021] In the figure, 1 - dropping rod, 2 - sealing plate, 21 - slotted opening, 3 - bracket, 4 - refractory fiber cotton, 5 - pallet car body, 6 - wheel, 7 - baffle.

[0022] The realization, functional characteristics and advantages of the object of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed Embodiments

[0023] It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0024] It should be noted that in the description of the present utility model, the orientation or positional relationship indicated by terms such as "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] The present utility model provides a sealing device for a pallet of a traveling grate.

[0026] Referring to Figure 1 and Figure 2 In this preferred embodiment, a sealing device for a pallet of a traveling grate includes a drop bar 1 sealing device and a sealing plate 2 located below the drop bar 1 sealing device. The drop bar 1 sealing device includes a drop bar 1 and a bracket for supporting the drop bar 1. A slot 21 is formed in the sealing plate 2 to cooperate with the bottom surface of the drop bar 1.

[0027] Further, a refractory fiber cotton 4 is embedded above the slot 21 to fill the gap between the drop bar 1 and the sealing plate 2, thereby improving the sealing performance between the two. Castable and refractory bricks are common lining sealing materials. Through experiments in this solution, it is found that the fiber cotton board has the best effect.

[0028] Further, drop bar 1 sealing devices are provided on both sides of the pallet. Each drop bar 1 sealing device includes at least two drop bars 1. A refractory fiber cotton 4 is installed in the gap between the two drop bars 1 to form a tight sealing layer. Specifically, multiple pieces of refractory fiber cotton 4 can be filled in sections between the two drop bars 1.

[0029] Specifically, in this embodiment, the refractory fiber cotton 4 is installed between the two drop bars 1 by bolts. The ends of the refractory fiber cotton 4 between the two drop bars 1 extend 10 mm to 20 mm outside the drop bars 1.

[0030] In this embodiment, the width of the gap between the side wall of the slot 21 and the outer side surface of the drop bar 1 is 6 mm to 10 mm. The depth of the slot 21 is 10 mm to 50 mm.

[0031] In this embodiment, the two drop bars 1 of the drop bar 1 sealing device are connected by an elastic member.

[0032] The sealing device for a pallet of a traveling grate proposed in this embodiment has the following beneficial effects:

[0033] 1) By designing the original sealing plate 2 of the flat plate into a grooved plate, a new sealing layer is formed, resulting in a better sealing effect and greatly reducing the air leakage loss of the trolley.

[0034] 2) By arranging refractory fiber cotton 4 between the two dropping rods 1, the sealing effect is further improved.

[0035] 3) This sealing device can greatly reduce the air leakage loss of the trolley and the heat loss of the materials in the trolley, and has an energy-saving effect to a certain extent, meeting the national requirements for green energy conservation in the iron and steel industry.

[0036] The present utility model further provides a trolley of a traveling grate.

[0037] In this preferred embodiment, a trolley of a traveling grate includes a sealing device. The specific structure and beneficial effects of the sealing device are referred to the above embodiments and will not be elaborated herein.

[0038] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A sealing device for a belt roasting machine trolley, characterized in that: The invention comprises a rod-dropping sealing device and a sealing plate located below the rod-dropping sealing device. The rod-dropping sealing device comprises a rod-dropping and a bracket for supporting the rod-dropping. The sealing plate is provided with a groove to match with the bottom surface of the rod-dropping.

2. The sealing device for a belt roasting machine trolley according to claim 1, characterized in that: Refractory fiber wool is embedded above the slot.

3. The sealing device for a belt roasting machine trolley according to claim 1, characterized in that: The rod-dropping sealing devices are arranged on both sides of the trolley, and each rod-dropping sealing device comprises at least two rods, and refractory fiber wool is installed in the gap between the two rods.

4. The sealing device for a belt roasting machine trolley according to claim 3, characterized in that: The refractory fiber wool is installed between two drop rods by bolts.

5. The sealing device for a belt roasting machine trolley according to claim 3, characterized in that: The end of the refractory fiber wool between the two drop rods extends out of the drop rods by 10 mm to 20 mm.

6. The sealing device for a belt roasting machine trolley according to claim 1, characterized in that: The width of the gap between the side wall of the slot and the outer side surface of the rod drop is 6mm-10mm.

7. The sealing device for a belt roasting machine trolley according to claim 1, characterized in that: The depth of the groove is 10 mm to 50 mm.

8. The sealing device for a belt roasting machine trolley according to any one of claims 1 to 7, characterized in that: The two drop rods of the drop rod sealing device are connected via an elastic member.

9. A belt roasting machine trolley, characterized in that: Comprising a sealing device as claimed in any one of claims 1 to 8.

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