Composite structure saddle for transporting hot rolled steel coils

Abstract

The utility model belongs to the technical field of hot rolled steel coil transportation, and discloses a composite structure saddle for hot rolled steel coil transportation, which comprises a saddle, the saddle comprises a first support leg and a second support leg, the top ends of the first support leg and the second support leg are connected with a support surface, the support surface is inclined from the second support leg to the first support leg, and the surface of the support surface is provided with a first bolt hole. The upper surface of the supporting face is connected with the bottom face of the composite pedal, second bolt holes are formed in the composite pedal in a penetrating mode and correspond to the first bolt holes, and the supporting face and the composite pedal are fixedly connected in the mode that bolts penetrate through the first bolt holes and the second bolt holes. The composite pedal is divided into an upper layer and a lower layer, the lower layer is a metal substrate, the upper layer is a heat insulation liner, and the bottom of the heat insulation liner is fixedly connected with the metal substrate. According to the utility model, heat conduction of the hot-rolled steel coil can be blocked, the hot-rolled steel coil is prevented from being cooled too fast at a contact position, the service requirements of impact working conditions of frequent placement and transfer of the steel coil are met, and the hot-rolled steel coil can be used for a long time under high-temperature and high-pressure working conditions.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hot rolled steel coil transportation technical field, specifically relates to a composite structure saddle for hot rolled steel coil transportation. BACKGROUND

[0002] Hot rolled steel coil, also known as hot coil and hot rolled plate, is made of billet as raw material after heating by rough rolling mill unit and finishing rolling mill unit, and is usually cylindrical, which is transported to subsequent production process by transportation system.

[0003] The saddle is a key component for supporting the steel coil in the hot rolled steel coil transportation system, and the steel coil keeps in contact with the saddle tread during the transportation link. The hot rolled steel coil discharged from the coiler is usually controlled at 550-800 DEG C, and is directly placed on the saddle to enter the transportation system. The position of the hot rolled steel coil in high temperature state directly contacting with the saddle will occur heat conduction, and the corresponding position of the steel coil will be cooled too fast, resulting in high strength, and periodic thickness fluctuation after cold rolling, which will cause uneven thickness of thin gauge high strength steel plate, and further affect its mechanical properties and use effect. In addition, such fluctuation will also increase the risk of belt breakage in the production process, and reduce the production efficiency.

[0004] At present, the surface of the saddle contacting with the hot rolled steel coil adopts refractory fiber or asbestos heat insulation pad, which can realize the heat conduction between the hot rolled steel coil and the metal tread. However, the strength of the refractory fiber or asbestos heat insulation pad cannot meet the impact working condition of the frequent placement and removal of the steel coil, and is easily crushed under the working condition of high temperature and high pressure. CONTENT OF THE UTILITY MODEL

[0005] The utility model discloses a composite structure saddle for hot rolled steel coil transportation, which has simple structure, convenient use, high strength and long-term use under the working condition of high temperature and high pressure.

[0006] The utility model discloses a composite structure saddle for hot rolled steel coil transportation, which has simple structure, convenient use, high strength and long-term use under the working condition of high temperature and high pressure.

[0007] The saddle includes a first leg and a second leg, the height of the first leg is smaller than the height of the second leg, the bottom of the second leg extends outward, the top ends of the first leg and the second leg are connected to the supporting surface, the supporting surface is inclined from the second leg toward the first leg, a first bolt hole is provided on the surface of the supporting surface, the upper surface of the supporting surface is connected to the bottom surface of the composite pedal, and the supporting surface and the composite pedal are fixedly connected by bolts passing through the first bolt hole and the second bolt hole.

[0008] Anchors are fixed on the upper surface of the bottom plate of the metal substrate, and the anchors are V-shaped. The thermal insulation pad is suitable for the installation structure of amorphous refractory materials. The amorphous refractory materials are arranged above the bottom plate and anchors of the metal substrate and on the inner side of the side sealing plate to form a thermal insulation pad. The metal substrate and the thermal insulation pad together form a composite pedal through the anchors and side sealing plates.

[0009] The thermal insulation pad is suitable for the installation structure of shaped refractory materials. It has a metal steel mesh inside and inverted L-shaped grooves corresponding to the side sealing plates on both sides and the lower edge. It is connected to the metal base plate through the side sealing plates to form a composite pedal.

[0010] The material of the side sealing plate is Q345R steel, 304 stainless steel or 316L stainless steel.

[0011] The material of the anchor is Q345R steel, 304 stainless steel or 316L stainless steel.

[0012] The wire diameter of the metal steel mesh is 2-6mm, the mesh width is 30-60mm, and the material is Q345R steel, 304 stainless steel or 316L stainless steel.

[0013] This composite structure saddle for transporting hot-rolled steel coils has two saddles symmetrically fixed on both sides of a conveyor belt. The two saddles are mirror-symmetrical and arranged in a V shape, and can be put into use immediately.

[0014] The saddle includes a first leg and a second leg. The height of the first leg is smaller than that of the second leg. The bottom of the second leg extends outward. The contact area of ​​the bottom of the second leg is larger, which can increase the stability of the saddle itself.

[0015] Both monolithic refractory and shaped refractory are common high-strength lightweight refractory materials with a density of 1.0-2.0g / cm 3 , the thermal conductivity is less than 1W / (m·K). This material has the characteristics of light weight and high strength, and can effectively block the heat conduction of hot-rolled steel coils.

[0016] The beneficial effects of this utility model are:

[0017] The utility model has the structural characteristics of light weight and high strength. The heat conduction of the hot-rolled steel coil is blocked by the thermal insulation pad, so that the hot-rolled steel coil is prevented from cooling too quickly at the contact position, resulting in the problem of high strength at the corresponding position. The mechanical properties and use effect of thin-gauge high-strength steel plates are effectively improved, and the production efficiency is improved. It meets the service requirements of the impact conditions of frequent placement and adjustment of steel coils and can be used for a long time under high temperature and high pressure working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the use of the utility model;

[0019] Figure 2 This is a front view schematic diagram of the saddle structure of the present utility model;

[0020] Figure 3 This is a schematic diagram of the support surface structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the composite pedal of the present utility model;

[0022] Figure 5 This is a schematic cross-sectional view of the embodiment 1 of the present utility model;

[0023] Figure 6 This is a schematic diagram of the metal substrate structure of Example 1 of the present utility model;

[0024] Figure 7 This is a schematic cross-sectional view of Example 2 of the present utility model;

[0025] Figure 8 This is a schematic diagram of the heat-insulating liner structure of the second embodiment of the present utility model;

[0026] Figure 9 This is a schematic diagram of the metal steel mesh structure of Example 2 of the present utility model.

[0027] Markings in the figure: 1. Saddle, 11. First leg, 12. Second leg, 13. Support surface, 131. First bolt hole; 2. Composite pedal, 21. Metal base plate, 211. Bottom plate, 212. Side sealing plate, 213. Anchor; 22. Thermal insulation pad, 221. Metal steel mesh, 222. Groove; 23. Second bolt hole; 3. Hot-rolled steel coil. DETAILED DESCRIPTION

[0028] The specific implementation of the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Example 1:

[0030] like Figure 2 and Figure 3As shown, a composite structure saddle for transporting hot-rolled steel coils, the saddle 1 includes a first leg 11 and a second leg 12, the tops of the first leg 11 and the second leg 12 are connected to a support surface 13, the height of the first leg 11 is less than the height of the second leg 12, the support surface 13 is inclined from the second leg 12 to the first leg 11, the surface of the support surface 13 is provided with a first bolt hole 131, and the upper surface of the support surface 13 is provided with a composite pedal 2; Figure 4 As shown, the composite pedal 2 is divided into two layers, the lower layer is a metal base plate 21, and the upper layer is a thermal insulation pad 22. A second bolt hole 23 is provided through the upper surface of the composite pedal 2, and the second bolt hole 23 is arranged corresponding to the first bolt hole 131. The support surface 13 and the composite pedal 2 are fixedly connected by bolts passing through the first bolt hole 131 and the second bolt hole 23.

[0031] like Figure 5 and Figure 6 As shown, the metal substrate 21 includes a bottom plate 211 and side sealing plates 212 arranged on both side edges and the lower edge of the bottom plate 211. The side sealing plates 212 are in an inverted L shape. A second bolt hole 23 is penetrated through the surface of the bottom plate 211. An anchor 213 is fixedly arranged on the upper surface of the bottom plate 211. The anchor 213 is V-shaped. The top of the metal substrate 21 is connected to the thermal insulation pad 22. The thermal insulation pad 22 is suitable for the installation structure of amorphous refractory materials and is cast from common amorphous materials. During production, a template is first set on the outside of the side sealing plate 212 to form a cavity together with the bottom plate 211, and then a high-strength and lightweight refractory material is injected into the cavity to form the thermal insulation pad 22. The formed thermal insulation pad 22 is provided with inverted L-shaped grooves 222 corresponding to the side sealing plates 212 on both side edges and the lower edge, and has a V-shaped hole corresponding to the anchor 213 at the bottom. The thermal insulation pad 22 is fixedly connected to the metal substrate 21 through the side sealing plates 212 and the anchor 213.

[0032] High-strength lightweight refractory material is a common unshaped refractory castable with a density of 1.5g / cm 3 , the thermal conductivity is 0.4W / (m·K).

[0033] The material of the side sealing plate 212 is Q345R steel, and the material of the anchor is 304 stainless steel.

[0034] like Figure 1 As shown, when in use, two composite structure saddles for transporting hot-rolled steel coils are arranged in a mirror-symmetrical manner and in a V-shape, and the steel coils 3 are placed on the composite pedal 2.

[0035] Example 2:

[0036] like Figure 2 and Figure 3As shown, a composite structure saddle for transporting hot-rolled steel coils, the saddle 1 includes a first leg 11 and a second leg 12, the tops of the first leg 11 and the second leg 12 are connected to a support surface 13, the height of the first leg 11 is less than the height of the second leg 12, the support surface 13 is inclined from the second leg 12 to the first leg 11, the surface of the support surface 13 is provided with a first bolt hole 131, and the upper surface of the support surface 13 is provided with a composite pedal 2; Figure 4 As shown, the composite pedal 2 is divided into two layers, the lower layer is a metal base plate 21, and the upper layer is a thermal insulation pad 22. A second bolt hole 23 is provided through the upper surface of the composite pedal 2, and the second bolt hole 23 is arranged corresponding to the first bolt hole 131. The support surface 13 and the composite pedal 2 are fixedly connected by bolts passing through the first bolt hole 131 and the second bolt hole 23.

[0037] like Figure 7 、 Figure 8 and Figure 9 As shown, the metal substrate 21 includes a bottom plate 211 and side sealing plates 212 arranged on both side edges and the lower edge of the bottom plate 211. The side sealing plates 212 are in an inverted L-shape. A second bolt hole 23 is provided through the surface of the bottom plate 211. The metal substrate 21 is connected to the thermal insulation pad 22. The thermal insulation pad 22 is suitable for the installation structure of shaped refractory materials. A metal steel mesh 221 is buried inside the thermal insulation pad 22. The two side edges and the lower edge of the thermal insulation pad 22 are provided with inverted L-shaped grooves 222 corresponding to the side sealing plates 212. The thermal insulation pad 22 is fixedly connected to the side sealing plates 212 through the grooves 222, and then together with the metal substrate 21 constitutes a composite pedal 2.

[0038] The material of the thermal insulation pad 22 is a common high-strength lightweight refractory material with a density of 1.65g / cm 3 , the thermal conductivity is 0.5W / (m·K).

[0039] The side sealing plate 212 is made of 304 stainless steel.

[0040] The heat-insulating pad 22 of the shaped structure is made by a process of machine pressing or casting.

[0041] The wire diameter of the metal steel mesh is 5 mm, the mesh width is 40 mm, and the material is Q345R steel.

[0042] The heat-insulating liner 22, the bottom plate 211 and the side sealing plate 212 of the fixed structure are bonded stably by applying fire mud on the contact surfaces.

[0043] like Figure 1 As shown, when in use, two composite structure saddles for transporting hot-rolled steel coils are arranged in a mirror-symmetrical manner and in a V-shape, and the steel coils 3 are placed on the composite pedal 2.

[0044] The utility model has a simple structure and is characterized by light weight and high strength. The composite pedal 2 can block the heat conduction of the hot-rolled steel coil, thereby preventing the hot-rolled steel coil from cooling too quickly at the contact position and causing the problem of high strength at the corresponding position. The utility model effectively improves the mechanical properties and use effect of thin-gauge high-strength steel plates, improves production efficiency, meets the service requirements of impact conditions such as frequent placement and adjustment of steel coils, and can be used for a long time under high temperature and high pressure working conditions.

Claims

1. A composite structure saddle for transporting hot-rolled steel coils, comprising a saddle (1), wherein the upper surface of the saddle (1) is inclined, and characterized in that: A first bolt hole (131) is provided on the upper surface of the saddle (1), and the upper surface of the saddle (1) is connected to the bottom surface of the composite pedal (2). A second bolt hole (23) is provided through the composite pedal (2), and the second bolt hole (23) is arranged corresponding to the first bolt hole (131). The saddle (1) and the composite pedal (2) are fixedly connected by bolts passing through the first bolt hole (131) and the second bolt hole (23); the composite pedal (2) is divided into two layers, the upper layer is a heat-insulating pad (22), and the lower layer is a metal base plate (21), the metal base plate (21) includes a bottom plate (211), and side sealing plates (212) are provided on both sides and the lower edge of the bottom plate (211), and the side sealing plates (212) are in an inverted L shape; the heat-insulating pad (22) is suitable for the installation structure of amorphous refractory materials, or suitable for the installation structure of shaped refractory materials.

2. The composite structure saddle for transporting hot-rolled steel coils according to claim 1, characterized in that: The saddle (1) comprises a first support leg (11) and a second support leg (12), the top ends of the first support leg (11) and the second support leg (12) are connected to a support surface (13), the height of the first support leg (11) is less than the height of the second support leg (12), the bottom end of the second support leg (12) extends outward, the support surface (13) is inclined from the second support leg (12) toward the first support leg (11), a first bolt hole (131) is provided on the surface of the support surface (13), the upper surface of the support surface (13) is connected to the bottom surface of the composite pedal (2), and the support surface (13) and the composite pedal (2) are fixedly connected by bolts passing through the first bolt hole (131) and the second bolt hole (23).

3. The composite structure saddle for transporting hot-rolled steel coils according to claim 1, characterized in that: An anchor (213) is fixedly provided on the upper surface of the bottom plate (211) of the metal substrate (21), and the anchor (213) is V-shaped. The thermal insulation pad (22) is suitable for the installation structure of the amorphous refractory material. The amorphous refractory material is arranged above the bottom plate (211) and the anchor (213) of the metal substrate (21) and the inner side of the side sealing plate (212) to form the thermal insulation pad (22). The metal substrate (21) and the thermal insulation pad (22) together form a composite pedal (2) through the anchor (213) and the side sealing plate (212).

4. The composite structure saddle for transporting hot-rolled steel coils according to claim 1, characterized in that: The heat-insulating pad (22) is suitable for the installation structure of shaped refractory materials, and is provided with a metal steel mesh (221) inside. The two side edges and the lower edge are provided with inverted L-shaped grooves (222) corresponding to the side sealing plates (212). The side sealing plates (212) are connected to the metal base plate (21) to form a whole, and together they constitute a composite pedal (2).

5. The composite structure saddle for transporting hot-rolled steel coils according to claim 1, characterized in that: The material of the side sealing plate (212) is Q345R steel, 304 stainless steel or 316L stainless steel.

6. The composite structure saddle for transporting hot-rolled steel coils according to claim 3, characterized in that: The material of the anchor (213) is Q345R steel, 304 stainless steel or 316L stainless steel.

7. The composite structure saddle for transporting hot-rolled steel coils according to claim 4, characterized in that: The steel wire diameter of the metal steel mesh (221) is 2-6 mm, the mesh width is 30-60 mm, and the material is Q345R steel, 304 stainless steel or 316L stainless steel.

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