Sintering machine trolley heat insulation pad for continuous casting production

Abstract

The utility model relates to a sintering machine trolley heat insulation pad for continuous casting production, which comprises a groove-shaped body, an opening of the groove-shaped body faces downwards, a notch is matched with a supporting beam, a protrusion extending along the length direction of the heat insulation pad is arranged on the upper bottom surface of the notch, and the cross section of the protrusion is arc-shaped. Comprising a first transition arc, a protruding arc and a second transition arc which are sequentially connected, the outer side of the first transition arc is in smooth transition with the upper bottom face of the notch, and the outer side of the second transition arc is in smooth transition with the upper bottom face of the notch. The sintering machine trolley heat insulation pad can be subjected to continuous casting machining, the productivity is improved, and the service life of a continuous casting piece is long.

Description

Technical Field

[0001] The utility model relates to a sintering machine trolley, in particular to a heat insulating pad of a sintering machine trolley used for continuous casting production. Background Art

[0002] Sintering is the pre-iron process for preparing sintered ore for blast furnace ironmaking. Sintering machine is the main equipment in the sintering process. It mainly adopts continuous production belt sintering machine and flat sintering machine. The continuous sintering belt is composed of multiple chain grate plate structure sintering machine trolleys, and the iron ore powder mixture is calcined into sintered ore at high temperature. The thermal insulation pad, grate bars and railings on the top of the sintering machine trolley constitute the sintering space. During the operation of the sintering machine trolley, the sintering machine trolley not only periodically bears the mechanical stress of its own weight, materials and exhaust negative pressure, but also periodically bears the thermal stress caused by high temperature baking and heating of material combustion, high temperature flue gas, dust scouring, exhaust cooling and natural cooling. Under the combined effects of mechanical fatigue, thermal fatigue and creep fatigue, oxidation and burning, the thermal insulation pad of the sintering machine trolley is a consumable part of the sintering machine, and its service life has a great impact on the economy and safety of sintering production.

[0003] The existing sintering machine trolley insulation pad is sand-cast. The sand-cast insulation pad has poor density, shrinkage, sand holes, slag inclusions, pores and other casting defects, which lead to failure due to oxidation burning, deformation and cracking during use. Its service life is only about one year. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a sintering machine trolley heat insulation pad used for continuous casting production, so as to solve the problem that the existing heat insulation pad structure cannot be used for continuous casting.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A sintering machine trolley insulation pad for continuous casting production, comprising a groove-shaped body, the opening of the groove-shaped body is downward, the groove is matched with a support beam, a protrusion extending along the length direction of the insulation pad is provided on the upper bottom surface of the groove, the cross-section of the protrusion is arc-shaped, including a first transition arc, a protrusion arc and a second transition arc connected in sequence, the outer side of the first transition arc smoothly transitions to the upper bottom surface of the groove, and the outer side of the second transition arc smoothly transitions to the upper bottom surface of the groove.

[0007] The radius of the first transition arc is 3-5 mm, the radius of the protruding arc is 7-10 mm, and the radius of the second transition arc is 3-5 mm.

[0008] The height H between the vertex of the protrusion and the upper bottom surface of the notch is 7-10 mm.

[0009] The center distance of the protrusions is 135-140 mm.

[0010] Compared with the existing technology, the beneficial effects of the utility model are:

[0011] The utility model enables the sintering machine trolley heat insulation pad to be continuously cast and processed, thereby improving productivity. The continuous casting has fewer defects such as sand holes and pores and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is a schematic diagram of the structure of the protrusion of the utility model.

[0014] In the figure: a groove body 1, a protrusion 2, a first transition arc 3, a protrusion arc 4, and a second transition arc 5. DETAILED DESCRIPTION

[0015] In the description of the present invention, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means more than two.

[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0017] As shown in the figure, a sintering machine trolley insulation pad used for continuous casting production includes a groove-shaped body 1, the opening of the groove-shaped body 1 is downward, the groove is matched with a support beam, and a protrusion 2 extending along the length direction of the insulation pad is provided on the upper bottom surface of the groove. The cross-section of the protrusion 2 is arc-shaped, including a first transition arc 3, a protrusion arc 4 and a second transition arc 5 connected in sequence, the outer side of the first transition arc 3 smoothly transitions to the upper bottom surface of the groove, and the outer side of the second transition arc 5 smoothly transitions to the upper bottom surface of the groove.

[0018] The radius of the first transition arc 3 is 3-5 mm, the radius of the protruding arc 4 is 7-10 mm, and the radius of the second transition arc 5 is 3-5 mm.

[0019] The height H between the vertex of the protrusion 2 and the upper bottom surface of the notch is 7-10 mm.

[0020] The center distance of the protrusions 2 is 135-140 mm.

[0021] In order to make the purpose, technical scheme and technical effect of the utility model clearer, the technical scheme in the embodiment of the utility model is now described clearly and completely. However, the embodiment described below is only a part of the embodiment of the utility model, not all of the embodiments. In combination with the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example

[0023] A thermal insulation pad for a sintering machine trolley used in continuous casting production, comprising a groove-shaped body 1, the opening of the groove-shaped body 1 is downward, the groove cooperates with a support beam, a protrusion 2 extending along the length direction of the thermal insulation pad is provided on the upper bottom surface of the groove, the cross-section of the protrusion 2 is arc-shaped, comprising a first transition arc 3, a protrusion arc 4 and a second transition arc 5 connected in sequence, the outer side of the first transition arc 3 smoothly transitions to the upper bottom surface of the groove, and the outer side of the second transition arc 5 smoothly transitions to the upper bottom surface of the groove.

[0024] The radius of the first transition arc 3 is 3±0.5 mm, the radius of the protruding arc 4 is 7±0.5 mm, and the radius of the second transition arc 5 is 3±0.5 mm.

[0025] The height H between the vertex of the protrusion 2 and the upper bottom surface of the notch is 7±0.5 mm.

[0026] The center distance of the protrusions 2 is 135±0.5 mm.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and basic spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sintering machine trolley insulation pad for continuous casting production, characterized in that: It includes a groove-shaped body, the opening of the groove-shaped body is downward, the groove is matched with the support beam, and a protrusion extending along the length direction of the thermal insulation pad is provided on the upper bottom surface of the groove. The cross-section of the protrusion is arc-shaped, including a first transition arc, a protrusion arc and a second transition arc connected in sequence. The outer side of the first transition arc smoothly transitions to the upper bottom surface of the groove, and the outer side of the second transition arc smoothly transitions to the upper bottom surface of the groove.

2. The sintering machine trolley insulation pad for continuous casting production according to claim 1 is characterized in that: The radius of the first transition arc is 3-5 mm, the radius of the protruding arc is 7-10 mm, and the radius of the second transition arc is 3-5 mm.

3. The sintering machine trolley insulation pad for continuous casting production according to claim 1 is characterized in that: The height H between the vertex of the protrusion and the upper bottom surface of the notch is 7-10 mm.

4. The sintering machine trolley insulation pad for continuous casting production according to claim 1 is characterized in that: The center distance of the protrusions is 135-140 mm.

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