Automatic clamping diameter-adjustable device for waste heat recovery of high-temperature steel coil

Abstract

The utility model provides an automatic clamping diameter-adjustable device for high-temperature steel coil waste heat recovery, and belongs to the technical field of high-temperature steel coil waste heat recovery. A steel coil is placed in a cylindrical heat exchange device composed of four heat exchange arc plates, the four heat exchange arc plates are located at the lower left position, the upper left position, the lower right position and the upper right position respectively, supports II are arranged at the two arc ends of the outer side of each heat exchange arc plate, and a supporting arc plate I is arranged between the two supports II; the two supports I are respectively fixed between the left lower support arc plate I and the right lower support arc plate I; supports III are arranged on the two sides of the platform, and the upper portions of the two supports III are connected to the middle of the upper left supporting arc plate I and the middle of the upper right supporting arc plate I through tensioning oil cylinders correspondingly. The steel coil heat exchange device can be suitable for heat exchange of steel coils of different sizes by replacing the heat exchange arc plates, the steel coils and the heat exchange arc plates basically achieve 100% contact through the clamping devices, and the heat exchange effect is very good through the heat exchange mode of contact heat transfer.

Description

Technical Field

[0001] The utility model relates to an automatic clamping diameter-adjustable device for recovering waste heat of a high-temperature steel coil, and belongs to the technical field of recovering waste heat of a high-temperature steel coil. Background Art

[0002] To curb the adverse impacts of excessive carbon emissions on the global climate, my country proposed implementing a "dual control" policy on both total energy consumption and energy intensity at the Fifth Plenary Session of the 18th Central Committee of the Communist Party of China in 2015. At the 75th United Nations General Assembly in 2020, the goals of reaching carbon peak by 2030 and achieving carbon neutrality by 2060 were set. As the world's largest energy consumer and energy-scarce country, my country's steel industry is a major energy consumer in the industrial sector and one of the sectors with the greatest potential for energy conservation and emission reduction. The steel industry has become both a key and challenging area for energy conservation and emission reduction efforts across society. If the steel industry achieves success in energy conservation and emission reduction, it will also make a significant contribution to overall energy conservation and emission reduction efforts. Seizing the initiative in this energy revolution, developing energy-saving processes and applying waste heat recovery technologies has become an industry consensus.

[0003] China has issued the "Standardized Conditions for Production and Operation in the Steel Industry," which sets out specific requirements for steel companies in areas such as environmental protection, energy consumption and resource recycling, and process equipment. It explicitly mandates that companies that fail to meet these requirements must rectify their actions accordingly, and those that still fail to meet these requirements after rectification should gradually withdraw from steel production.

[0004] National environmental protection laws and regulations have become more stringent, and the task of energy conservation and emission reduction has become more arduous. Among the key development directions of the steel industry, those related to energy conservation and emission reduction account for the majority.

[0005] At present, the recovery rate of waste heat and waste energy in the steel industry is quite low. If this waste heat is reasonably utilized, by effectively recovering the heat loss in production and using the waste heat for heating or power generation, it can not only save energy, reduce operating costs, and improve corporate efficiency, but also protect the environment and reduce thermal pollution.

[0006] Steel coils have a large amount of waste heat that needs to be recovered, but the diameters of steel coils vary slightly. Because the fixed mechanism of traditional heat exchangers cannot adapt to changes in coil diameter, traditional heat exchangers can only exchange heat for coils of a fixed size. Consequently, waste heat from coils of other sizes or slightly varying sizes cannot be recovered. To address this issue, an automatic clamping and diameter-adjustable device has been developed to adapt to changes in coil diameter during the waste heat recovery process. Summary of the Invention

[0007] The purpose of the utility model is to solve the problems existing in the above-mentioned prior art and further provide a high-temperature steel coil waste heat recovery automatic clamping diameter adjustable device.

[0008] The purpose of this utility model is achieved through the following technical solutions:

[0009] A high-temperature steel coil waste heat recovery automatic clamping diameter adjustable device, the high-temperature steel coil waste heat recovery automatic clamping diameter adjustable device comprises a platform, a support I, a support II, a support arc plate I, a support III, an oil cylinder I, a connecting fixed rod, a tensioning oil cylinder, an oil cylinder II, a support IV, a connecting hook plate, a heat exchange arc plate and a heat exchange pin.

[0010] The steel coil is placed in a cylindrical heat exchange device composed of four heat exchange arc plates. The four heat exchange arc plates are located at the lower left, upper left, lower right and upper right positions respectively. Supports II are set at both ends of the outer arc of each heat exchange arc plate, and a supporting arc plate I is set between the two supports II.

[0011] Two supports I are fixed in the middle area of the platform. The two supports I are respectively fixed in the middle of the lower left and lower right support arc plates I. Supports III are set on both sides of the platform. The upper parts of the two supports III are respectively connected to the middle of the upper left and upper right support arc plates I through tensioning cylinders.

[0012] The two adjacent supports II on the upper left and lower left heat exchange arc plates are connected by connecting and fixing rods, and the two adjacent supports II on the upper right and lower right heat exchange arc plates are connected by connecting and fixing rods, and the bottom of the fixed rod is connected to the tensioning cylinder; the two adjacent supports II on the upper left and upper right heat exchange arc plates are connected by connecting hook plates; the heat exchange pin is connected to the support II on the left side of the upper right support arc plate I, one end of the connecting hook plate is fixed on the piston rod of the cylinder II, the middle of the connecting hook plate is fixed to the support II of the upper left heat exchange arc plate, and the other end of the connecting hook plate is hooked on the heat exchange pin; the top of the connecting hook plate is connected to the support IV through the cylinder II, and the bottom of the support IV is fixed on the upper left support arc plate I.

[0013] The utility model discloses an automatic clamping diameter-adjustable device for recovering waste heat of a high-temperature steel coil, wherein the heat exchange arc plate is a steel plate.

[0014] The utility model discloses an automatic clamping diameter-adjustable device for recovering waste heat of a high-temperature steel coil. End heat exchange devices are arranged on the front and rear sides of the heat exchange device.

[0015] The utility model discloses an automatic clamping diameter-adjustable device for recovering waste heat from a high-temperature steel coil. Each heat exchange arc plate is provided with a heat exchange tube.

[0016] The utility model discloses an automatic clamping diameter-adjustable device for recovering waste heat of a high-temperature steel coil. A heat exchange tube is provided on the end heat exchange device.

[0017] The utility model discloses an automatic clamping diameter-adjustable device for recovering waste heat of a high-temperature steel coil. The curvature of the heat exchange arc plate is the same as that of the steel coil.

[0018] The utility model discloses an automatic clamping diameter-adjustable device for recovering waste heat from high-temperature steel coils. By replacing the heat exchange arc plate, it can be used for heat exchange of steel coils of different sizes. The clamping device makes the steel coil and the heat exchange arc plate basically achieve 100% contact. Within a certain range, the size change of the steel coil will not affect the close contact between the steel coil and the heat exchange arc plate. The heat exchange effect of the contact heat transfer method is very good, and the heat of the steel coil can be exchanged out through the heat exchange arc plate within a few hours. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the main view of the automatic clamping diameter adjustable device for high-temperature steel coil waste heat recovery of the utility model.

[0020] Figure 2 This is a side view of the utility model of the automatic clamping diameter adjustable device for recovering waste heat from high-temperature steel coils.

[0021] The reference numerals in the figure are: 1 for the bracket platform; 2 for the support I; 3 for the support II; 4 for the supporting arc plate I; 5 for the support III; 6 for the cylinder I; 7 for the connecting fixed rod; 8 for the tensioning cylinder; 9 for the cylinder II; 10 for the support IV; 11 for the connecting hook plate; 12 for the heat exchange tube; 13 for the heat exchange arc plate; and 14 for the heat exchange pin. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings: This embodiment is implemented based on the technical solution of the present invention, and a detailed implementation method is given, but the protection scope of the present invention is not limited to the following embodiments.

[0023] Example 1: Figure 1 and Figure 2 As shown, the embodiment involves a high-temperature steel coil waste heat recovery automatic clamping diameter adjustable device, which includes a platform, support I, support II, support arc plate I, support III, cylinder I, connecting and fixing rod, tensioning cylinder, cylinder II, support IV, connecting hook plate, heat exchange arc plate and heat exchange pin.

[0024] The steel coil is placed in a cylindrical heat exchange device composed of four heat exchange arc plates. The four heat exchange arc plates are located at the lower left, upper left, lower right and upper right positions respectively. Supports II are set at both ends of the outer arc of each heat exchange arc plate, and a supporting arc plate I is set between the two supports II.

[0025] Two supports I are fixed in the middle area of the platform. The two supports I are respectively fixed in the middle of the lower left and lower right support arc plates I. Supports III are set on both sides of the platform. The upper parts of the two supports III are respectively connected to the middle of the upper left and upper right support arc plates I through tensioning cylinders.

[0026] The two adjacent supports II on the upper left and lower left heat exchange arc plates are connected by connecting fixed rods, and the two adjacent supports II on the upper right and lower right heat exchange arc plates are connected by connecting fixed rods, and the bottom of the fixed rods is connected to the tensioning cylinder; the two adjacent supports II on the upper left and upper right heat exchange arc plates are connected by connecting hook plates; the heat exchange pin is connected to the support II on the left side of the upper right support arc plate I, one end of the connecting hook plate is fixed to the piston rod of the cylinder II, the middle of the connecting hook plate is fixed to the support II of the upper left heat exchange arc plate, and the other end of the connecting hook plate is hooked to the heat exchange pin; the top of the connecting hook plate is connected to the support IV through the cylinder II, and the bottom of the support IV is fixed to the upper left support arc plate I. Within a certain range, the size change of the steel coil will not affect the close contact between the steel coil and the heat exchange arc plate. Within a certain range, the size change of the steel coil will not affect the close contact between the steel coil and the heat exchange arc plate.

[0027] The utility model discloses an automatic clamping diameter-adjustable device for recovering waste heat of a high-temperature steel coil, wherein the heat exchange arc plate is a steel plate.

[0028] This utility model discloses an automatic clamping diameter-adjustable device for recovering waste heat from high-temperature steel coils. The heat exchanger is provided with end heat exchangers on both the front and rear sides of the heat exchanger. The heat exchanger and the end heat exchangers on both sides form a cylindrical structure into which the steel coil is placed. Heat exchange arc plates and heat exchange tubes within the end heat exchangers absorb the waste heat from the steel coil.

[0029] The utility model discloses an automatic clamping diameter-adjustable device for recovering waste heat from a high-temperature steel coil. Each heat exchange arc plate is provided with a heat exchange tube.

[0030] The utility model discloses an automatic clamping diameter-adjustable device for recovering waste heat of a high-temperature steel coil. A heat exchange tube is provided on the end heat exchange device.

[0031] The utility model discloses an automatic clamping diameter adjustable device for recovering waste heat from high-temperature steel coils. The curvature of the heat exchange arc plate is the same as that of the steel coil. The heat exchange arc plate of the same size can accommodate steel coils of the same size or slightly larger and smaller steel coils.

[0032] Example 2: Figure 1 and Figure 2 As shown, the embodiment involves a high-temperature steel coil waste heat recovery automatic clamping diameter adjustable device. In the initial state, the four heat exchange arc plates 13 are respectively located at the lower left, upper left, lower right and upper right positions of the heat exchange device;

[0033] Device opening process:

[0034] After the piston rod of cylinder I6 is extended, the piston rod of cylinder II9 is retracted, the hook side of the connecting hook plate 11 is lifted, exceeding the connecting pin, and the upper left and upper right support arc plates are separated; then the piston rod of cylinder I6 is retracted, and it stops after it is retracted until the upper right and upper left support arc plates 4 are opened and the size of the opening exceeds the diameter of the heat exchange device, and the steel coil is placed in the heat exchange device, and the steel coil falls on the two heat exchange arc plates below by gravity.

[0035] Device shutdown process:

[0036] The piston rod of the oil cylinder I6 extends until the upper left and upper right heat exchange arc plates 13 are connected, and the piston rod of the oil cylinder II9 extends to connect the connecting hook plate 11 and the positioning pin 14; then the piston rod of the oil cylinder I6 contracts to tighten the upper left and upper right support arc plates 4; then the piston rod of the tensioning oil cylinder 8 contracts to tighten the upper left and lower left and upper right and lower right heat exchange arc plates 13 respectively, so that the heat exchange arc plates 13 are in close contact with the steel coil, and the medium in the heat exchange tube 12 exchanges heat with the steel coil, and the heat exchange tube 12 is connected to the heat exchange device to perform subsequent heat exchange work (the subsequent heat exchange work belongs to the prior art and is not within the scope of protection of this application, so it is not described in this application).

[0037] All cylinders in the high-temperature steel coil waste heat recovery automatic clamping and diameter adjustment device are controlled by a controller. This control process is conventional and can be controlled manually or through a program. It is not within the scope of this application and is therefore not described in this application. Each high-temperature steel coil waste heat recovery automatic clamping and diameter adjustment device is only suitable for steel coils with approximately the same curvature as the heat exchange arc plate. If the size difference is significant, the heat exchange arc plate needs to be replaced.

[0038] This contact-type, automatically clamping, diameter-adjustable heat exchanger is unique in that, within a certain range, changes in coil size will not affect the close contact between the coil and the heat exchange arcs. The clamping mechanism ensures 100% contact between the coil and the heat exchange arcs. Because heat transfer is achieved through contact, the heat exchange efficiency is excellent, dissipating heat from the coil through the heat exchange arcs within a few hours.

[0039] During the coil production process, the weight and rolling temperature of each ingot vary, resulting in varying widths and diameters. To address the issue of traditional coil clamping devices preventing the heat exchange arcs from fully contacting the coils as the coil diameter changes, a contact-type, automatic coil clamping, and diameter-adjustable heat exchange device has been developed. This device automatically adjusts to the coil diameter, ensuring full contact with the heat exchange arcs.

[0040] The above descriptions are merely preferred embodiments of the present invention. These embodiments are all different ways of implementing the overall concept of the present invention. The scope of protection of the present invention is not limited to these embodiments. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A high-temperature steel coil waste heat recovery automatic clamping diameter adjustable device, characterized in that: The high-temperature steel coil waste heat recovery automatic clamping diameter adjustable device comprises a platform (1), a support I (2), a support II (3), a support arc plate I (4), a support III (5), an oil cylinder I (6), a connecting fixed rod (7), a tensioning oil cylinder (8), an oil cylinder II (9), a support IV (10), a connecting hook plate (11), a heat exchange arc plate (13) and a heat exchange pin (14). The steel coil is placed in a cylindrical heat exchange device composed of four heat exchange arc plates (13), and the four heat exchange arc plates (13) are respectively located at the lower left, upper left, lower right and upper right positions. Supports II (3) are provided at both ends of the arc outside each heat exchange arc plate (13), and a supporting arc plate I (4) is provided between the two supports II (3); Two supports I (2) are fixed in the middle area of the platform (1), and the two supports I (2) are respectively fixed in the middle of the lower left and lower right support arc plates I (4); supports III (5) are provided on both sides of the platform (1), and the upper parts of the two supports III (5) are respectively connected to the middle of the upper left and upper right support arc plates I (4) through tensioning cylinders (8); The two adjacent supports II (3) on the upper left and lower left heat exchange arc plates (13) are connected by connecting fixed rods (7), and the two adjacent supports II (3) on the upper right and lower right heat exchange arc plates (13) are connected by connecting fixed rods (7), and the bottom of the fixed rods (7) is connected to the tensioning cylinder (8); the two adjacent supports II (3) on the upper left and upper right heat exchange arc plates (13) are connected by connecting hook plates (11); the heat exchange pin (14) is connected to the upper right support arc On the support II (3) on the left side of the plate I (4), one end of the connecting hook plate (11) is fixed to the piston rod of the oil cylinder II (9), the middle of the connecting hook plate (11) is fixed to the support II (3) of the upper left heat exchange arc plate (13), and the other end of the connecting hook plate (11) is hooked on the heat exchange pin (14); the top end of the connecting hook plate (11) is connected to the support IV (10) through the oil cylinder II (9), and the bottom of the support IV (10) is fixed to the upper left support arc plate I (4).

2. The high-temperature steel coil waste heat recovery automatic clamping diameter adjustable device according to claim 1 is characterized in that: The heat exchange arc plate (13) is a steel plate.

3. The high-temperature steel coil waste heat recovery automatic clamping diameter adjustable device according to claim 1 is characterized in that: End heat exchange devices are provided on the front and rear sides of the heat exchange device.

4. The high-temperature steel coil waste heat recovery automatic clamping diameter adjustable device according to claim 1 is characterized in that: A heat exchange tube (12) is provided on each of the heat exchange arc plates (13).

5. The high-temperature steel coil waste heat recovery automatic clamping diameter adjustable device according to claim 3 is characterized in that: The end heat exchange device is provided with a heat exchange tube (12).

6. The high-temperature steel coil waste heat recovery automatic clamping diameter adjustable device according to claim 3 is characterized in that: The curvature of the heat exchange arc plate (13) is the same as the curvature of the steel coil.

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