Ripping fence structure for sintering pallet

Abstract

The utility model discloses a breast board structure for a sintering pallet, which comprises a breast board body and a cover board 2 matched with the breast board body, and the cover board 2 is formed on one side far away from sintering ore. And a heat insulation layer is formed between the breast board body and the cover plate 2. The breast board structure for the sintering pallet has high mechanical strength and a good heat preservation effect, and the problem of heat loss is well solved while the service life of the breast board is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of sintering trolleys, and in particular relates to a guardrail structure for a sintering trolley. Background Art

[0002] Iron ore sintering is a process in which a mixture of iron ore raw materials, fuel, flux and other auxiliary materials is completely sintered at high temperature in a sintering machine trolley. The sintering trolley is its main operating equipment. During production, the sintering trolley guardrails are all exposed without any heat insulation measures, which causes the heat of the sintering process to be lost to the surrounding environment. Not only does it cause heat loss, but the average temperature of the outer side of the guardrail is about 300 degrees, and the highest temperature can reach more than 500 degrees. The surrounding operation and inspection environment is relatively harsh, and at the same time, the temperature of the edge of the sintering material layer is reduced, worsening the edge effect, forming one of the main factors limiting the improvement of the sintering yield.

[0003] The utility model application with application number: 202121026630.8 discloses "a sintering trolley guardrail", including a guardrail body, and the upper part of the back of the guardrail body is arranged with concave process grooves, the shape of the process grooves is three convex arcs and three concave arcs, which are smoothly connected at intervals, and the convex arc sections of two adjacent process grooves are adjacent to the concave arc sections, and reinforcing ribs with smooth transitions are formed between the process grooves. The inner side of the guardrail body is fixedly connected to a fixed seat, and a grate clamping device is connected to the fixed seat. The grate clamping device includes a support, a pressure arm, a pressure block, a handle, and a connecting plate. One end of the support is connected to the pressure arm, the bottom of the pressure arm is connected to the pressure block, and the other end of the support is connected to the connecting plate, and the handle is respectively connected to the pressure arm and the connecting plate. A pin sleeve is fixed to the handle, and a fixing pin is inserted in the pin sleeve. A pin hole for inserting the fixing pin is provided on the inner side of the guardrail body.

[0004] The utility model application with application number: 202021038216.4 discloses "a heat-insulating and energy-saving sintering trolley for the sintering process of ultra-thick material layers", including: a trolley body, which has a accommodating cavity for accommodating sintering material, the top of the accommodating cavity is open, and the bottom of the trolley body is provided with wheels suitable for rolling on tracks; insulating material, covering the outer wall of the trolley body; the heat-insulating and energy-saving sintering trolley for the sintering process of ultra-thick material layers of the utility model, by covering the outer wall of the trolley body with insulating material, greatly enhances the thermal insulation effect at the outer wall of the sintering trolley, and can reduce the temperature at the outer wall of the sintering trolley by about 30% during sintering. Utility Model Content

[0005] The utility model aims to provide a guardrail with excellent mechanical properties and heat preservation function.

[0006] In order to achieve the above technical objectives, the utility model provides a guardrail structure for a sintering trolley, and its technical solution is as follows:

[0007] A guardrail structure for a sintering trolley,

[0008] It includes a guardrail body and a cover plate 2 adapted to the guardrail body.

[0009] The cover plate 2 is formed on a side away from the sintered ore;

[0010] A heat insulation layer is formed between the guardrail body and the cover plate 2.

[0011] Further,

[0012] The heat-insulating layer comprises a nano coating 3 and an aerogel heat-insulating layer 4 which are sequentially formed in the direction of transition from the guardrail body to the cover plate 2 .

[0013] Further,

[0014] The thickness of the nano coating is controlled to be above 10 mm.

[0015] Further,

[0016] The thickness of the aerogel insulation layer is controlled to be above 20 mm.

[0017] Further,

[0018] The guardrail body is formed by splicing the ductile iron parts 1 formed by casting, and accordingly, the cover plate 2 is adapted to the ductile iron parts 1.

[0019] Further,

[0020] The spheroidization rate of the cast ductile iron reaches at least 85%.

[0021] Further,

[0022] The cast ductile iron part is a component formed with reinforcing ribs.

[0023] Further,

[0024] The reinforcing ribs are composed of main ribs 5 and auxiliary ribs 6, and the main ribs and auxiliary ribs are distributed at equal intervals along the longitudinal direction.

[0025] Further,

[0026] The guardrail body and the cover plate 2 are screwed.

[0027] Further,

[0028] The screw holes on the cover plate 2 for matching with the bolts are arranged as waist holes 7 .

[0029] The utility model discloses a guardrail structure for a sintering trolley, which has strong mechanical strength and better heat preservation effect, and improves the problem of heat loss well while ensuring the service life of the guardrail. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the utility model;

[0031] Figure 2 It is a schematic diagram of the distribution of the main reinforcement and the auxiliary reinforcement in the utility model;

[0032] Figure 3 It is a schematic diagram of ductile iron parts used for splicing to form the guardrail body in the utility model;

[0033] Figure 4 The utility model is a schematic diagram of a cover plate structure adapted to a ductile iron casting.

[0034] In the figure,

[0035] 1- Ductile iron castings;

[0036] 2-cover plate;

[0037] 3-Nano coating;

[0038] 4- aerogel insulation layer;

[0039] 5-Main tendon;

[0040] 6- auxiliary tendons;

[0041] 7-Waist hole. DETAILED DESCRIPTION

[0042] Next, a guardrail structure for a sintering trolley of the utility model will be further described in detail according to the accompanying drawings and specific implementation methods of the specification.

[0043] Overview of technical composition and design ideas:

[0044] like Figure 1 , 2 , 3, and 4 show a guardrail structure for a sintering trolley. First, the original guardrail is made of ductile iron with reinforcing ribs, and the spheroidization rate of the ductile iron is controlled to be at least 85% to ensure the strength of the material itself and resist and delay the occurrence of thermal cracks. In order to better serve the purpose of strengthening the strength, the reinforcing ribs are divided into main ribs and auxiliary ribs. Secondly, in order to reduce heat loss, an insulation layer is provided on the guardrail. Among them, in order to prevent the insulation layer from falling off, an insulation layer is provided behind the guardrail, and a cover plate is provided behind the insulation layer to form a sandwich arrangement. Here, in order to take into account both the falling-off problem and the insulation effect, the insulation layer adopts a composite arrangement, and the insulation effect is ensured by a nano-coating. In order to prevent the nano-coating from falling off, a layer of aerogel insulation layer is provided. Finally, in order to adapt to certain thermal deformation, the screw holes on the cover plate used to adapt to the bolts are set as waist holes.

[0045] The guardrail structure formed by the arrangement is composed of multiple ductile iron structures, and a single ductile iron structure, such as Figure 1 As shown, it includes a ductile iron casting 1, a nano coating 3, an aerogel insulation layer 4 and a cover plate 2, wherein the ductile iron casting is cast (such as Figure 3 As shown in FIG. 1 , the cover plate is arranged on the side away from the sintered ore and is screwed to the cast ductile iron part. On each cast ductile iron part, main reinforcement bars 5 and auxiliary reinforcement bars 6 are distributed longitudinally at equal intervals (as shown in FIG. Figure 2 As shown in FIG. 1 , the main reinforcement 5 and the auxiliary reinforcement 6 are integrally cast with the cast ductile iron part. The casting is performed in accordance with controlling the spheroidization rate to be at least 85%.

[0046] The reason for adopting the distribution structure of main reinforcement + auxiliary reinforcement is to ensure the mechanical strength of the guardrail body together with the ductile iron with a spheroidization rate of at least 85%, so as to resist or delay the occurrence of thermal cracks and improve and ensure the service life; and the thermal insulation layer is composed of a composite layer of nano coating and aerogel thermal insulation layer, considering the balance between the shedding problem and the thermal insulation performance. Accordingly, the thickness of the nano coating is controlled to be above 10mm, and the thickness of the aerogel thermal insulation layer is controlled to be above 20mm. At the same time, in order to make the prepared guardrail have a certain adaptability to thermal deformation in actual use, the screw holes on the cover plate used to adapt to the bolts are set as waist holes (such as Figure 4 shown).

Claims

1. A guardrail structure for a sintering trolley, characterized in that: It comprises a guardrail body and a cover plate (2) adapted to the guardrail body. The cover plate (2) is formed on a side away from the sintered ore; A heat insulation layer is formed between the guardrail body and the cover plate (2).

2. The guardrail structure for a sintering trolley according to claim 1, characterized in that: The heat-insulating layer comprises a nano coating (3) and an aerogel heat-insulating layer (4) which are sequentially formed in the direction of transition from the guardrail body to the cover plate (2).

3. The guardrail structure for a sintering trolley according to claim 2, characterized in that: The thickness of the nano coating is controlled to be above 10 mm.

4. The guardrail structure for a sintering trolley according to claim 2, characterized in that: The thickness of the aerogel insulation layer is controlled to be above 20 mm.

5. The guardrail structure for a sintering trolley according to claim 1, characterized in that: The guardrail body is formed by splicing cast ductile iron parts (1) formed by casting, and accordingly, the cover plate (2) is adapted to the ductile iron parts (1).

6. The guardrail structure for a sintering trolley according to claim 5, characterized in that: The spheroidization rate of the cast ductile iron reaches at least 85%.

7. The guardrail structure for a sintering trolley according to claim 5, characterized in that: The cast ductile iron part is a component formed with reinforcing ribs.

8. The guardrail structure for a sintering trolley according to claim 7, characterized in that: The reinforcing ribs are composed of main ribs (5) and auxiliary ribs (6), and the main ribs and auxiliary ribs are distributed at equal intervals along the longitudinal direction.

9. The guardrail structure for a sintering trolley according to claim 1, characterized in that: The guardrail body and the cover plate (2) are screwed together.

10. The guardrail structure for a sintering trolley according to claim 9, characterized in that: The screw holes on the cover plate (2) for matching with the bolts are arranged as waist holes (7).

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