Split type hot box top device

Abstract

The utility model discloses a split type hot box top device which comprises a top plate body arranged on the top of a hot box frame, and the top plate body is fixedly connected with the hot box frame through a plurality of fasteners. A water inlet and a water return hole are formed in the top of the top plate body, a cooling liquid channel is formed in the bottom of the top plate body, one end of the cooling liquid channel is connected with the water inlet, the other end of the cooling liquid channel is connected with the water return hole, and the water inlet is communicated with the water return hole. The top of the top plate body is further fixedly connected with a hot box cover plate used for pressing the top plate body, and hydraulic cylinders used for overturning the hot box cover plate are arranged on the two sides of the hot box cover plate. According to the utility model, the top plate main body and the hot box frame body form a detachable assembly by arranging the fastener and the sealing strip, so that the replacement of the top plate main body and the development of various maintenance work in the hot box are facilitated, the maintenance efficiency and the installation quality are improved, the labor intensity can be reduced, and the top plate can be widely applied to continuous casting equipment.

Description

Technical Field

[0001] The utility model belongs to the technical field of continuous casting equipment, and in particular relates to a split type hot box top device. Background Art

[0002] Continuous casting equipment refers to the general term for all equipment used in the process of steel forming. Each equipment forms a production line in the process of working. Among them, hot-rolled strip has a certain market demand. The ultra-thin strip production line of this technology is characterized by liquid molten steel being injected into the molten pool formed by two casting rollers rotating in opposite directions through the flow distribution system, directly producing cast strips with a thickness of less than 3 mm, and then a single hot rolling can produce hot-rolled thin strips with a thickness of less than 2 mm. However, this process will cause energy waste, so the hot box came into being and played a key role in the production of hot-rolled strip.

[0003] For example, the existing hot boxes on the market, the Chinese patent with application number 201911391937.5 published, "A new type of hot box required for producing hot-rolled strip with high surface quality without online descaling", can reduce energy consumption, thereby improving production stability. However, the device still has the following disadvantages: according to the actual use on site, since the top structure of the hot box is in a high temperature environment for a long time, the top structure of the hot box is prone to deformation and bulging, and in severe cases, it will leak and cannot be used anymore; and on the basis of high temperature, if the chloride ion content in the water is too high, it will evaporate and produce crystals, which will block the internal water cooling structure channel, thus causing the internal water cooling structure to have disadvantages. When the above situation occurs, it is necessary to replace the top structure of the hot box or open the top structure of the hot box to repair the inside of the hot box. When replacing or opening the hot box, the weld needs to be cut off, and it is also necessary to ensure that the hot box frame is not cut. The welding requirements are also high when reinstalling, which not only wastes time, but also affects the normal development of work. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a split type heat box top device.

[0005] In order to solve the above technical problems and achieve the above technical effects, the present invention is implemented through the following technical solutions:

[0006] A split-type hot box top device comprises a top plate body arranged on the top of the hot box frame, the top plate body being fixedly connected to the hot box frame by a plurality of fasteners; a water inlet hole and a water return hole are provided on the top of the top plate body, a coolant channel is provided on the bottom of the top plate body, one end of the coolant channel is connected to the water inlet hole, the other end of the coolant channel is connected to the water return hole, and the water inlet hole and the water return hole are communicated; a hot box cover plate for pressing the top plate body is also fixedly connected to the top of the top plate body, and hydraulic cylinders for flipping the hot box cover plate are provided on both sides of the hot box cover plate.

[0007] Furthermore, three sides of the top plate body and the upper surface of the heat box frame are correspondingly provided with fastener mounting holes, and the fasteners pass through the fastener mounting holes of the top plate body and are connected to the fastener mounting holes of the heat box frame.

[0008] Furthermore, the top plate body and the other side of the heat box frame are connected by a sealing strip.

[0009] Furthermore, the water inlet hole and the water return hole are both threaded connectors, a threaded hole is opened at a set position on the upper surface of the top plate body, and the water inlet hole and the water return hole are both threadedly connected to the upper surface of the top plate body.

[0010] Furthermore, the water inlet hole is connected to the low-temperature cooling water pipe inlet pipe, and the water return hole is connected to the high-temperature cooling water pipe return pipe.

[0011] Furthermore, the heat box cover is fixedly connected to the top plate body through a connecting piece.

[0012] Furthermore, the hydraulic cylinder is arranged on both sides of the hot box cover plate through a hydraulic cylinder mounting seat, and a rotating rod is hinged at the output end of the hydraulic cylinder. The rotating rod is arranged in the hot box cover plate mounting seat through a rotating shaft, and the rotating shaft is connected to the hot box cover plate; the hot box cover plate realizes its own flipping through the movement of the hydraulic cylinder.

[0013] Furthermore, the fasteners are high-strength fastening bolts that are resistant to high temperatures.

[0014] Furthermore, the main body of the top plate is formed by welding steel plates.

[0015] Furthermore, the water inlet hole and the water return hole are both located on the same side of the top plate body. Beneficial Effects

[0016] Compared with the prior art, the utility model has a simple structure and is easy to use. By arranging fasteners and sealing strips, the top plate body and the hot box frame become a detachable component. When the top plate body needs to be replaced or opened, it is only necessary to remove the fasteners and sealing strips to easily disassemble the top plate body, and it can also save time and effort during the reinstallation process, so that maintenance personnel can easily disassemble and install the top structure of the hot box. Therefore, the utility model is not only conducive to the replacement of the top plate body and the implementation of various maintenance work in the hot box, but also can effectively avoid unnecessary damage to the hot box frame. While improving maintenance efficiency and installation quality, it can also reduce labor intensity and can be widely used in continuous casting equipment.

[0017] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 It is a top view of the utility model;

[0020] Figure 2 It is the front view of the utility model.

[0021] In the figure: 1. top plate body; 2. water inlet hole; 3. water return hole; 4. fastener; 5. hot box frame; 6. hot box cover; 7. hydraulic cylinder; 8. hydraulic cylinder mounting seat; 9. hot box cover mounting seat; 10. rotating shaft; 11. rotating rod. DETAILED DESCRIPTION

[0022] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. The descriptions herein are used to provide a further understanding of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0023] See also Figure 1-2 As shown, a split type heat box top device mainly includes a top plate body 1 arranged on the top of the heat box frame 5, and the top plate body 1 is fixedly connected to the heat box frame 5 through a plurality of fasteners 4.

[0024] Preferably, the top plate body 1 is formed by welding steel plates; the fasteners 4 are high-strength fastening bolts that are resistant to high temperatures.

[0025] Preferably, fastener mounting holes are correspondingly opened on three sides of the upper surface of the top plate body 1 and the heat box frame 5, and the fastener 4 passes through the fastener mounting hole of the top plate body 1 and is connected to the fastener mounting hole of the heat box frame 5; the other side of the top plate body 1 and the heat box frame 5 are connected by a sealing strip.

[0026] A water inlet hole 2 and a water return hole 3 are provided at the top of the top plate body 1, and a coolant channel is provided at the bottom of the top plate body 1. One end of the coolant channel is connected to the water inlet hole 2, and the other end of the coolant channel is connected to the water return hole 3. The water inlet hole 2 and the water return hole 3 are connected.

[0027] Preferably, the water inlet hole 2 and the water return hole 3 are both located on the same side of the top plate body 1, and the water inlet hole 2 and the water return hole 3 are both threaded connectors. A threaded hole is opened at a set position on the upper surface of the top plate body 1, and the water inlet hole 2 and the water return hole 3 are both threadedly connected to the upper surface of the top plate body 1.

[0028] Preferably, the water inlet hole 2 is connected to the water inlet pipe of the low-temperature cooling water pipe, and the water return hole 3 is connected to the water return pipe of the high-temperature cooling water pipe.

[0029] A heat box cover plate 6 for pressing the top plate body 1 is also fixedly connected to the top of the top plate body 1 , and hydraulic cylinders 7 for flipping the heat box cover plate 6 are provided on both sides of the heat box cover plate 6 .

[0030] Preferably, the heat box cover plate 6 is fixedly connected to the top plate body 1 through a connecting piece.

[0031] Preferably, the hydraulic cylinder 7 is arranged on both sides of the hot box cover plate 6 through the hydraulic cylinder mounting seat 8, and a rotating rod 11 is hinged at the output end of the hydraulic cylinder 7. The rotating rod 11 is arranged in the hot box cover plate mounting seat 9 through a rotating shaft 10, and the rotating shaft 10 is connected to the hot box cover plate 6; the hot box cover plate 6 realizes its own flipping through the movement of the hydraulic cylinder 7.

[0032] The working principle of the utility model is as follows:

[0033] See also Figure 1-2 As shown: when the top plate body 1 needs to be replaced, first remove the connecting parts between the hot box cover plate 6 and the top plate body 1, so that the hot box cover plate 6 can be flipped upward following the output end of the hydraulic cylinder 7, and then remove the connecting parts between the hydraulic cylinder 7 and the hot box cover plate 6, so that the hot box cover plate 6 can be removed from the top plate body 1.

[0034] Then, the fasteners 4 and the sealing strips around the top plate body 1 are removed so that the top plate body 1 can be removed from the heat box frame 5, thereby being replaced with a new top plate body 1.

[0035] When replacing the top plate body 1, it is only necessary to fix the new top plate body 1 on the hot box frame 5 with fasteners 4 and sealing strips, and then fix the hot box cover 6 on the top plate body 1 with connecting pieces, and then connect the hot box cover 6 and the hydraulic cylinder 7 with connecting pieces to ensure the normal operation of the device.

[0036] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A split type hot box top device, characterized in that: The invention comprises a top plate body (1) arranged on the top of a heat box frame (5), wherein the top plate body (1) is fixedly connected to the heat box frame (5) by means of a plurality of fasteners (4); a water inlet hole (2) and a water return hole (3) are provided on the top of the top plate body (1), and a coolant channel is provided on the bottom of the top plate body (1), wherein one end of the coolant channel is connected to the water inlet hole (2), and the other end of the coolant channel is connected to the water return hole (3), and the water inlet hole (2) and the water return hole (3) are in communication; a heat box cover plate (6) for pressing the top plate body (1) is also fixedly connected to the top of the top plate body (1), and hydraulic cylinders (7) for flipping the heat box cover plate (6) are provided on both sides of the heat box cover plate (6).

2. A split type heat box top device according to claim 1, characterized in that: The top plate body (1) and the heat box frame (5) are provided with corresponding fastener mounting holes on three sides of their upper surfaces, and the fasteners (4) pass through the fastener mounting holes of the top plate body (1) and are connected to the fastener mounting holes of the heat box frame (5).

3. A split type heat box top device according to claim 2, characterized in that: The top plate body (1) and the other side of the heat box frame (5) are connected via a sealing strip.

4. A split type heat box top device according to claim 1, characterized in that: The water inlet hole (2) and the water return hole (3) are both threaded connectors; a threaded hole is provided at a set position on the upper surface of the top plate body (1); and the water inlet hole (2) and the water return hole (3) are both threadedly connected to the upper surface of the top plate body (1).

5. A split type heat box top device according to claim 1, characterized in that: The water inlet hole (2) is connected to the water inlet pipe of the low-temperature cooling water pipe, and the water return hole (3) is connected to the water return pipe of the high-temperature cooling water pipe.

6. A split type heat box top device according to claim 1, characterized in that: The heat box cover plate (6) is fixedly connected to the top plate body (1) via a connecting piece.

7. A split type heat box top device according to claim 1, characterized in that: The hydraulic cylinder (7) is arranged on both sides of the hot box cover plate (6) through a hydraulic cylinder mounting seat (8); a rotating rod (11) is hinged at the output end of the hydraulic cylinder (7); the rotating rod (11) is arranged in the hot box cover plate mounting seat (9) through a rotating shaft (10); the rotating shaft (10) is connected to the hot box cover plate (6); the hot box cover plate (6) realizes its own flipping through the movement of the hydraulic cylinder (7).

8. The split type heat box top device according to claim 1, characterized in that: The fastener (4) is a high-strength fastening bolt that is resistant to high temperatures.

9. A split type heat box top device according to claim 1, characterized in that: The top plate body (1) is formed by welding steel plates.

10. The split type heat box top device according to claim 1, characterized in that: The water inlet hole (2) and the water return hole (3) are both located on the same side of the top plate body (1).

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