A heat collecting device in the process of continuous casting billet transportation

Abstract

The present invention discloses a heat collecting device for the continuous casting billet conveying process, wherein heat collecting plates with heat preservation and heat collecting functions are arranged on the upper, lower, left and right sides of the continuous casting roller conveying the continuous casting billet, and the heat collecting plates on the four sides form a sealed heat collecting cover to collect and keep heat from the continuous casting billet conveyed inside, thereby reducing heat loss; the setting of the heat collecting cover can effectively maintain the temperature of the continuous casting billet, realize hot delivery of the hot billet, control the temperature drop of the continuous casting billet within 100°C, and effectively prevent heat loss; the heat collecting plate includes a middle glass fiber interlayer and upper and lower aerosol material outer layers, and has the advantages of good heat collection effect, light weight, smooth surface, etc., simple manufacturing process, good economy; the lower heat collecting cover includes a plurality of self-weight type tilting devices that can automatically clean iron oxide scale, which are arranged between and below two adjacent continuous casting rollers. Under the condition of heat preservation and heat collection, the self-weight type tilting device can freely clean the iron oxide scale by gravity, without the need for external force drive or manual cleaning, and the cleaning is efficient and saves costs.

Description

Technical Field

[0001] The present invention relates to the technical field of continuous casting production equipment in the metallurgical industry, and in particular to a heat collecting device during the continuous casting billet transportation process. Background Art

[0002] Continuously cast billets are products obtained by casting molten steel from a steelmaking furnace through a continuous casting machine. The production process of a continuous casting machine is to continuously pour high-temperature molten steel into one or a group of water-cooled copper crystallizers. The molten steel gradually solidifies into a billet shell along the periphery of the crystallizer. After the steel liquid level rises to a certain height and the billet shell solidifies to a certain thickness, the billet is pulled out by a straightening machine and cooled by water spray in the secondary cooling zone to completely solidify the billet. The cutting device then cuts it into fixed lengths according to the requirements of steel rolling. This process of directly pouring high-temperature molten steel into billets is called continuous casting.

[0003] During the transportation of continuous casting billets from a steel mill to a heating furnace via the continuous casting rollers, the billets experience a temperature drop of approximately 300°C. Once in the heating furnace, they must be reheated to a temperature of 400°C to 600°C before entering the subsequent rolling process. This temperature drop during transportation results in significant heat loss. Currently, all major steel mills use bare conveyor technology with no insulation measures. In particular, the underground channel beneath the rollers channels the slag flushing water, resulting in significant heat loss on all four sides of the billet.

[0004] As a result, a heat collection device for the continuous casting billet transportation process was invented. The device adopts a four-sided closed heat collection cover to cover the entire continuous casting billet in the heat collection device from the top, bottom, left and right directions, effectively preventing heat loss in various areas of the billet and controlling the temperature drop of the billet within 100°C. Summary of the Invention

[0005] The present invention discloses a heat collecting device for the continuous casting billet conveying process, which insulates the billet conveyed on the continuous casting roller through a four-sided closed heat collecting cover to prevent heat loss and reduce the temperature drop before the billet enters the heating furnace; and the iron oxide scale dropped on the deadweight type tilting device at the bottom of the billet during the roller conveying process can be automatically tilted by relying on the weight of the iron oxide scale, and the iron oxide scale can be discharged into the underground ditch, and can be automatically rotated and reset according to the eccentric gravity; this device can greatly reduce the temperature drop of the billet, realize hot delivery of hot billets, and reduce energy loss.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A heat collection device for use in a continuous casting billet conveying process comprises a plurality of continuous casting rollers on a continuous casting roller conveying the continuous casting billet. The rotating continuous casting rollers convey the upper continuous casting billet. The heat collection device comprises heat collection plates arranged on the upper, lower, left and right sides of the continuous casting roller conveyor. The heat collection plates on the four sides form a sealed heat collection cover to collect heat and keep the continuous casting billet conveyed inside warm, thereby reducing heat loss.

[0008] As a further solution of the present invention: the heat collecting plate adopts a composite multilayer plate material, and the heat collecting plate includes a middle glass fiber interlayer and upper and lower aerosol material outer layers.

[0009] As a further solution of the present invention: the heat collecting cover includes an upper heat collecting cover, a lower heat collecting cover and a lower heat collecting cover, the upper heat collecting cover is arranged on the upper part and the upper parts of both sides of the continuous casting roller, the lower heat collecting cover is arranged on the lower parts of both sides of the continuous casting roller, and the lower heat collecting cover is arranged on the lower part of the continuous casting roller. The upper heat collecting cover, the lower heat collecting cover and the lower heat collecting cover are buckled together to form a complete heat collecting cover.

[0010] As a further solution of the present invention: the lower heat collecting cover includes a plurality of self-weight tilting devices, each of which is arranged between and below two adjacent continuous casting rollers.

[0011] As a further solution of the present invention: the center of the self-weight tilting device includes a rotating shaft, and a first eccentric rotating structure and a second eccentric rotating structure are coaxially rotated on both sides of the rotating shaft. The first eccentric rotating structure and the second eccentric rotating structure can rotate under the action of eccentric gravity. The upper parts of the first eccentric rotating structure and the second eccentric rotating structure are both provided with limit blocks, and the limit blocks are fixedly connected to the roller beam.

[0012] As a further solution of the present invention: the first eccentric rotating structure includes a first heat collecting flap and a first counterweight block, the second eccentric rotating structure includes a second heat collecting flap and a second counterweight block, the center of gravity is on one side of the counterweight block, and the first heat collecting flap and the second heat collecting flap cover the gap between adjacent continuous casting rollers.

[0013] As a further solution of the present invention: the first heat collecting flap and the second heat collecting flap are made of composite multilayer board material, and the first heat collecting flap and the second heat collecting flap include a middle glass fiber interlayer and upper and lower aerosol material outer layers.

[0014] As a further solution of the present invention: the heat collecting plate is composed of a plurality of heat collecting module plates that are detachably spliced ​​together.

[0015] As a further solution of the present invention: the width of the heat collection module plate is equal to the distance between adjacent continuous casting rollers.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. A heat collection device in the process of conveying continuous casting billets: heat collection plates with heat insulation and heat collection functions are arranged on the upper, lower, left and right sides of the continuous casting roller that transports the continuous casting billets. The heat collection plates on all sides form a sealed heat collection cover to collect heat and keep the continuous casting billets conveyed inside, thereby reducing heat loss. After the continuous casting billets are cut to length, they will generate a temperature drop of more than 300°C during the process of being conveyed nakedly from the continuous casting roller to the heating furnace. The setting of the heat collection cover can effectively maintain the temperature of the continuous casting billets, realize hot delivery of hot billets, control the temperature drop of the continuous casting billets within 100°C, and effectively prevent heat loss. The structure of the present invention is novel and reasonable, can realize hot delivery of hot billets, and reduce energy loss.

[0018] 2. The solar collector is made of composite multi-layer board material, which includes a middle glass fiber interlayer and upper and lower aerosol material outer layers. It has the advantages of good heat collection effect, light weight, smooth surface, simple manufacturing process and good economy.

[0019] 3. The upper heat collecting cover, the lower heat collecting cover and the lower heat collecting cover are buckled together to form a complete heat collecting cover. The heat collecting cover is composed of various parts, and each part is independently fixed, which improves the stability of the heat collecting cover. When each part of the heat collecting cover is damaged and needs to be repaired or replaced, each part can be repaired and replaced separately, which is simple, efficient and low in maintenance cost.

[0020] 4. The lower heat collecting cover includes a plurality of self-weight type tilting devices that can automatically clean the oxidized iron scale. Each self-weight type tilting device is arranged between and below two adjacent continuous casting rollers. Each self-weight type tilting device includes a rotating shaft and two eccentric rotating structures. The eccentric rotating structure includes a counterweight block and a heat collecting flap, and the center of gravity is on one side of the counterweight block. A fixed limit block is provided on the upper part of the heat collecting flap, and the heat collecting flap covers the gap between adjacent continuous casting rollers. The plurality of heat collecting flaps realize heat insulation and heat collection for the lower part of the continuous casting roller. The heat collecting flap maintains gap coverage under the action of the counterweight block and the limit block. When the weight of the oxidized iron scale falling from the heat collecting flap is greater than the counterweight block, the eccentric rotating structure automatically flips down to clean the oxidized iron scale, and returns to its original position under the action of the counterweight block after cleaning. The limit block ensures that the heat collecting flap is in the optimal heat collection and insulation position. Under the condition of heat insulation and heat collection, the self-weight type tilting device can use gravity to freely clean the oxidized iron scale. No external force is required, and no manual cleaning is required. The cleaning is efficient and saves costs.

[0021] 5. The heat collecting flap includes a middle glass fiber interlayer and upper and lower aerosol material outer layers. It has the advantages of good heat collecting effect, light weight, and smooth surface. The friction between the heat collecting flap and the oxidized iron sheet is small, which makes it easy for the oxidized iron sheet to fall off.

[0022] 6. The solar collector plate is composed of multiple detachable solar collector module plates. The solar collector module plates can be repaired and replaced individually, making on-site inspection, repair and replacement more convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0024] In the attached figure:

[0025] Figure 1 This is a front view of a second embodiment of a heat collection device for conveying continuous casting slabs according to the present invention.

[0026] Figure 2 This is a top view of a second embodiment of a heat collection device during the continuous casting slab transportation process of the present invention.

[0027] Figure 3 This is a side view of a second embodiment of a heat collection device during the continuous casting slab conveying process of the present invention.

[0028] Figure 4 This is a structural schematic diagram of a heat collecting plate of a heat collecting device during the continuous casting billet transportation process of the present invention.

[0029] Reference numerals:

[0030] 1. Continuous casting roller; 2. Heat collecting cover; 3. Self-weight tilting device; 30. Rotating shaft; 31. First eccentric rotating structure; 32. Second eccentric rotating structure; 33. Stop block; 34. First heat collecting flap; 35. First counterweight; 36. Second heat collecting flap; 37. Second counterweight; 4. Heat collecting module board; 5. Glass fiber interlayer; 6. Aerosol material outer layer; DETAILED DESCRIPTION

[0031] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0032] It should be noted that all directional indications in the embodiments (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, in the embodiments, descriptions such as "first" and "second" are only for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0035] Example 1:

[0036] The heat collecting device in the continuous casting billet conveying process includes a plurality of continuous casting rollers on the continuous casting roller conveying the continuous casting billets. The rotating continuous casting rollers convey the upper continuous casting billets. The heat collecting device includes heat collecting plates arranged on the upper, lower, left and right sides of the continuous casting roller conveyor. The heat collecting plates on all sides form a sealed heat collecting cover to collect heat and keep the continuous casting billets conveyed inside warm, thereby reducing heat loss.

[0037] Preferably, the heat collecting plate is made of a composite multilayer plate material, and the heat collecting plate includes a middle glass fiber interlayer and upper and lower aerosol material outer layers.

[0038] The heat collecting cover includes an upper heat collecting cover, a lower heat collecting cover and a lower heat collecting cover. The upper heat collecting cover is arranged on the upper part and the upper part of both sides of the continuous casting roller, the lower heat collecting cover is arranged on the lower part of both sides of the continuous casting roller, and the lower heat collecting cover is arranged on the lower part of the continuous casting roller. The upper heat collecting cover, the lower heat collecting cover and the lower heat collecting cover are buckled together to form a complete heat collecting cover.

[0039] The heat collecting plate is composed of a plurality of heat collecting module plates which are detachably connected. The width of the heat collecting module plates is equal to the distance between adjacent continuous casting rollers.

[0040] In practical applications:

[0041] The heat collecting plates on all sides form a sealed heat collecting cover to collect heat and keep the continuous casting billets transported inside, which can reduce heat loss. After the continuous casting billets are cut to a fixed length, they will be transported naked from the continuous casting roller to the heating furnace, which will produce a temperature drop of more than 300°C. The setting of the heat collecting cover can effectively maintain the temperature of the continuous casting billets, control the temperature drop of the continuous casting billets within 100°C, and effectively prevent heat loss. The structure of the present invention is novel and reasonable, can realize hot delivery of hot billets, and reduce energy loss.

[0042] The solar collector plate adopts composite multi-layer board material, which includes a middle glass fiber interlayer and upper and lower aerosol material outer layers. It has the advantages of good heat collection effect, light weight, smooth surface, simple manufacturing process and good economy.

[0043] The upper heat collecting cover, the lower heat collecting cover and the lower heat collecting cover are buckled together to form a complete heat collecting cover. The heat collecting cover is composed of various parts, and each part is independently fixed, which improves the stability of the heat collecting cover. When each part of the heat collecting cover is damaged and needs to be repaired or replaced, each part can be repaired and replaced separately, which is simple, efficient and has low maintenance costs.

[0044] The solar collector panel is composed of multiple detachable solar collector module panels, which can be repaired and replaced individually, making on-site inspection, repair and replacement more convenient and efficient.

[0045] Example 2: Figure 1-4 shown

[0046] A heat collecting device in the continuous casting billet conveying process includes a plurality of continuous casting rollers 1 on the continuous casting roller conveying the continuous casting billets. The rotating continuous casting rollers 1 convey the upper continuous casting billets. The heat collecting device includes heat collecting plates arranged on the upper, lower, left and right sides of the continuous casting roller conveyor. The heat collecting plates on all sides form a sealed heat collecting cover 2 to collect heat and keep the continuous casting billets conveyed inside warm, thereby reducing heat loss.

[0047] Preferably, the heat collecting plate is made of composite multilayer board material, including a middle glass fiber interlayer 5 and upper and lower aerosol material outer layers 6. The heat collecting plate is composed of multiple detachable heat collecting module panels 4, and the width of the heat collecting module panels 4 is equal to the distance between adjacent continuous casting rollers 1.

[0048] The heat collecting cover 2 includes an upper heat collecting cover, a lower heat collecting cover and a lower heat collecting cover. The upper heat collecting cover is arranged on the upper part and the upper part of both sides of the continuous casting roller, the lower heat collecting cover is arranged on the lower part of both sides of the continuous casting roller, and the lower heat collecting cover is arranged on the lower part of the continuous casting roller. The upper heat collecting cover, the lower heat collecting cover and the lower heat collecting cover are buckled together to form a complete heat collecting cover 2.

[0049] The lower heat collecting cover includes a plurality of self-weight tilting devices 3 , and each self-weight tilting device 3 is arranged between and below two adjacent continuous casting rollers 1 .

[0050] The center of the self-weight tilting device 3 includes a rotating shaft 30, and a first eccentric rotating structure 31 and a second eccentric rotating structure 32 are coaxially rotated on both sides of the rotating shaft 30. The first eccentric rotating structure 31 and the second eccentric rotating structure 32 can rotate under the action of eccentric gravity. The upper part of the first eccentric rotating structure 31 and the second eccentric rotating structure 32 are both provided with a limit block 33 for limiting positioning, and the limit block 33 is fixedly connected to the roller beam.

[0051] The first eccentric rotating structure 31 includes a first heat collecting flap 34 and a first counterweight block 35, and the second eccentric rotating structure 32 includes a second heat collecting flap 36 and a second counterweight block 37. The center of gravity is on one side of the counterweight block. The first heat collecting flap 34 and the second heat collecting flap 36 cover the gap between adjacent continuous casting rollers 1.

[0052] The first heat collecting flap 34 and the second heat collecting flap 36 are made of a composite multilayer board material. The first heat collecting flap 34 and the second heat collecting flap 36 include a middle glass fiber interlayer 5 and upper and lower aerosol material outer layers 6 .

[0053] In practical applications:

[0054] After the continuous casting billet is cut to a fixed length, a temperature drop of more than 300°C will occur during the process of being transported nakedly from the continuous casting roller to the heating furnace. The setting of the heat collecting cover 2 can effectively maintain the temperature of the continuous casting billet and control the temperature drop of the continuous casting billet within 100°C, effectively preventing heat loss. The structure of the present invention is novel and reasonable, can realize hot delivery of hot billets, and reduces energy loss.

[0055] The heat collecting plate adopts composite multilayer board material, and the heat collecting plate includes a middle glass fiber interlayer 5 and upper and lower aerosol material outer layers 6. It has the advantages of good heat collecting effect, light weight, smooth surface, etc., simple manufacturing process and good economy.

[0056] The upper heat collecting cover, the lower heat collecting cover and the lower heat collecting cover are buckled together to form a complete heat collecting cover 2. The heat collecting cover 2 is composed of various parts, and each part is independently fixed, which improves the stability of the heat collecting cover 2. When each part of the heat collecting cover 2 is damaged and needs to be repaired and replaced, each part can be repaired and replaced separately, which is simple, efficient and has low maintenance costs.

[0057] The lower heat collecting cover includes a plurality of self-weight tilting devices 3 that can automatically clean the iron oxide scale. Each self-weight tilting device 3 is arranged between and below two adjacent continuous casting rollers 1. Each self-weight tilting device 3 includes a rotating shaft 30 and two eccentric rotating structures. The eccentric rotating structure includes a counterweight block and a heat collecting flap. The center of gravity is on one side of the counterweight block. A fixed limit block 33 is provided on the upper part of the heat collecting flap. The heat collecting flap covers the gap between adjacent continuous casting rollers 1. Multiple heat collecting flaps realize heat preservation and heat collection on the lower part of the continuous casting roller. The heat collecting flap maintains gap coverage under the action of the counterweight block and the limit block 33. When the weight of the iron oxide scale falling on the heat collecting flap is greater than the counterweight block, the eccentric rotating structure automatically flips down to clean the iron oxide scale. After cleaning, it returns to its original position under the action of the counterweight block. The limit block 33 limits the heat collecting flap to ensure that the heat collecting flap is in the optimal heat collecting and heat preservation position. Under the condition of heat preservation and heat collection, the self-weight tilting device 3 can use gravity to freely clean the iron oxide scale without external force driving or manual cleaning, which is efficient and saves costs.

[0058] The heat collecting flap comprises a middle glass fiber interlayer 5 and upper and lower aerosol material outer layers 6, and has the advantages of good heat collecting effect, light weight, smooth surface, etc. The friction between the heat collecting flap and the oxidized iron sheet is small, which facilitates the falling of the oxidized iron sheet.

[0059] The heat collecting plate is composed of a plurality of heat collecting module plates 4 which can be detachably connected. The heat collecting module plates 4 can be repaired and replaced individually, making on-site inspection, repair and replacement more convenient and efficient.

[0060] Finally, it should be noted that the above disclosure is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention. The scope of this application is limited only by the appended claims.

Claims

1. A heat collecting device for conveying continuous casting billets, wherein a continuous casting roller conveyor for conveying continuous casting billets comprises a plurality of continuous casting rollers (1), and the rotating continuous casting rollers (1) convey the upper continuous casting billets, and the device is characterized in that: The heat collecting device comprises heat collecting plates arranged on the upper, lower, left and right sides of the continuous casting roller, wherein the heat collecting plates on the four sides form a sealed heat collecting cover (2) to collect heat and keep the continuous casting billets transported inside warm, thereby reducing heat loss; The heat collecting cover (2) comprises an upper heat collecting cover, a lower heat collecting cover and a lower heat collecting cover, wherein the upper heat collecting cover is arranged on the upper part and the upper parts of both sides of the continuous casting roller, the lower heat collecting cover is arranged on the lower parts of both sides of the continuous casting roller, and the lower heat collecting cover is arranged on the lower part of the continuous casting roller, and the upper heat collecting cover, the lower heat collecting cover and the lower heat collecting cover are connected up and down to form a complete heat collecting cover (2); The lower heat collecting cover comprises a plurality of self-weight tilting devices (3), each of the self-weight tilting devices (3) being arranged between and below two adjacent continuous casting rollers (1); The center of the self-weight tilting device (3) includes a rotating shaft (30), and a first eccentric rotating structure (31) and a second eccentric rotating structure (32) are coaxially rotated on both sides of the rotating shaft (30). The first eccentric rotating structure (31) and the second eccentric rotating structure (32) can rotate under the action of eccentric gravity. The first eccentric rotating structure (31) and the second eccentric rotating structure (32) are both provided with a limit block (33) on the upper part for limiting the position, and the limit block (33) is fixedly connected to the roller beam; The first eccentric rotating structure (31) includes a first heat collecting flap (34) and a first counterweight (35), and the second eccentric rotating structure (32) includes a second heat collecting flap (36) and a second counterweight (37), the center of gravity of which is on one side of the counterweight, and the first heat collecting flap (34) and the second heat collecting flap (36) cover the gap between adjacent continuous casting rollers (1); The heat collecting plate is made of a composite multilayer plate material, and comprises a middle glass fiber interlayer (5) and upper and lower aerosol material outer layers (6); The first heat collecting flap (34) and the second heat collecting flap (36) are made of a composite multilayer board material. The first heat collecting flap (34) and the second heat collecting flap (36) include a middle glass fiber interlayer (5) and upper and lower aerosol material outer layers (6); The heat collecting plate is composed of a plurality of heat collecting module plates (4) which are detachably spliced ​​together.

2. The heat collection device during continuous casting slab transportation according to claim 1, characterized in that: The width of the heat collection module plate (4) is equal to the distance between adjacent continuous casting rollers (1).

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