A casting and rolling equipment for increasing casting and rolling speed

Abstract

The present invention belongs to the technical field of nonferrous metal casting and rolling production, and relates to a casting and rolling equipment for increasing the casting and rolling speed, wherein at least two channels are arranged in parallel in the casting nozzle; a plurality of diverter blocks are arranged in the inner cavity of the casting nozzle; the casting and rolling equipment comprises a front box, which is divided into a plurality of liquid level isolation boxes, each of which is connected to the channel in the casting nozzle through a chute; and a roller is arranged on the liquid outlet side of the casting nozzle. The present invention can form an effective cooling arc length between the casting nozzle and the roller surface of the roller, extend the contact area, and improve the cooling capacity, and can effectively improve the cooling capacity of the casting roller, thereby increasing the casting and rolling production speed, meeting the requirements of efficient casting and rolling production, and ensuring the production quality.

Description

Technical Field

[0001] The invention belongs to the technical field of nonferrous metal casting and rolling production, and relates to a casting and rolling equipment for improving the casting and rolling speed. Background Art

[0002] The casting and rolling production process has become a common understanding of modern industrial production with its advantages of short process, high efficiency and low energy consumption. However, the industrial production of high-speed continuous casting and rolling is not yet mature, and its technology needs to be developed, especially in the casting and rolling equipment, many technical problems still need to be solved. In particular, most researchers have conducted in-depth research on roller cooling devices, but most have not made revolutionary progress, especially in the improvement of production speed. There is no disruptive improvement, either because the equipment is unstable and the production cannot be sustained, or because the product strength level is high and production cannot be carried out. The urgent task for the current aluminum strip production is how to improve production efficiency, how to improve production varieties, and how to quickly produce high-strength alloy aluminum, which has become an urgent need for existing aluminum strip production companies and a requirement of the market situation.

[0003] Based on this, it is necessary to seek methods and means to improve production efficiency and production capacity. However, in the existing casting and rolling mill, when its internal structure and external conditions have been determined, it seems unlikely to improve the cooling capacity of the casting and rolling mill, which has long restricted the improvement and increase of the casting and rolling production speed. However, with the innovation of technology and the urgent demand for products, it is also necessary to explore its deep technology, so as to quickly improve the cooling capacity of the casting and rolling rollers, and then improve production efficiency. Among them, the liquid supply area of ​​the casting and rolling roller is the core area of ​​cooling capacity. Its essence is the contact heat exchange between the aluminum liquid and the roller surface of the two rollers. The size of the contact area directly determines the level of cooling heat exchange capacity. Therefore, the appropriate contact heat exchange area is conducive to improving the cooling capacity, improving the cooling contact arc length from the basic point of view, extending the cooling heat exchange time, and improving the cooling capacity becomes a possibility.

[0004] Since the conventional casting and rolling mills currently in common use adopt the "casting and rolling mill + single short casting nozzle" layout, the cooling capacity is low and the casting and rolling speed is slow, which cannot meet the requirements of increasing production and speeding up. At the same time, this conventional casting and rolling mill is restricted by the limitation of cooling capacity and cannot produce high-strength alloy aluminum, which is not adapted to the requirements of current technological development. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a casting nozzle for increasing the casting and rolling speed and a casting and rolling equipment using the casting nozzle, and to provide a technical solution with a multi-channel casting nozzle to solve the problems of insufficient cooling capacity, low cooling efficiency, slow production speed, high energy consumption, poor economy, etc. in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A casting nozzle for improving the casting and rolling speed, wherein at least two channels are arranged in parallel in the casting nozzle; and a plurality of diverter blocks are arranged in the inner cavity of the casting nozzle.

[0008] Optionally, the inner cavity of the casting nozzle is a shaped cavity distributed according to mathematical laws, and a plurality of diversion blocks form a straight row.

[0009] Optionally, the arrangement of the diverter blocks satisfies the following arrangement:

[0010] L=nS+mx+y+2b

[0011] Where:

[0012] —L is the total length of the inner cavity, in mm;

[0013] —S is the width of the shunt block, S = 6 ~ 12mm;

[0014] —x is the edge gap length, in mm;

[0015] —y is the center gap length, in mm;

[0016] —b is the end gap length, unit is b=40~60mm;

[0017] —n is the number of diversion blocks ；

[0018] —m is the number of edge gaps.

[0019] A casting and rolling equipment for increasing the casting and rolling speed uses the above-mentioned casting nozzle, including a front box, which is divided into a plurality of liquid level isolation boxes, each of which is connected to the channel in the casting nozzle through a chute; a roller is provided on the liquid outlet side of the casting nozzle.

[0020] Optionally, it also includes a frame, and the rollers are installed on the frame.

[0021] Optionally, the front box, chute and casting nozzle are all arranged on the frame by adjusting the locking device.

[0022] Optionally, a casting nozzle seat is also included, and the casting nozzle is fixed in the casting nozzle seat.

[0023] Optionally, an outlet cooling device is further included, wherein the outlet cooling device is arranged on a side of the rolling roller away from the casting nozzle.

[0024] Optionally, the casting nozzle comprises two channels.

[0025] Optionally, the front box is a double liquid level isolation box, which is respectively connected to different channels of the casting nozzle.

[0026] The beneficial effects of the present invention are:

[0027] The present invention forms an effective cooling arc length between the casting nozzle and the roller surface, extends the contact area, improves the cooling capacity, and adopts a triangular diversion block to divide the inner cavity of the casting nozzle into flow distribution nozzles suitable for liquid flow according to certain mathematical laws, which can effectively improve the cooling capacity of the casting roller, thereby increasing the casting and rolling production speed, meeting efficient casting and rolling production, and ensuring production quality.

[0028] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0030] Figure 1 It is a schematic diagram of the overall structure of a casting and rolling equipment for improving the casting and rolling speed involved in the present invention;

[0031] Figure 2 It is a schematic structural diagram of a casting nozzle for improving the casting and rolling speed involved in the present invention;

[0032] Figure 3 Schematic diagram of the position of the diversion block in the present invention. DETAILED DESCRIPTION

[0033] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0034] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0035] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0036] See also Figure 1-Figure 3 The component numbers in the accompanying drawings represent: front box 1, chute 2, casting nozzle seat 3, double-channel casting nozzle 4, double casting rollers 5, machine base 6, outlet cooling device 7, diverter block 8, adjustment locking device 9.

[0037] This embodiment takes a double channel as an example, wherein the casting nozzle adopts a double channel casting nozzle, the rolling rollers adopt double casting rolling rollers, and the front box adopts a double liquid level isolation box. The present invention is further described below based on this embodiment.

[0038] The casting and rolling equipment for improving the casting and rolling speed involved in this embodiment at least includes: a front box 1, a chute 2, a casting nozzle seat 3, a dual-channel casting nozzle 4, a dual casting roller 5, a machine base 6, an outlet cooling device 6, a diverter block 8, and an adjustment locking device 9. The dual-channel casting nozzle adopts a mathematical liquid flow law to organically divide the inner cavity of the casting nozzle into a two-way channel injection flow channel mode, and is divided into two upper and lower channels, each channel is independent and interdependent; the dual-channel casting nozzle 4 is installed on the casting nozzle seat 3; the casting nozzle seat 3 is installed on the adjustment locking device 9, and the dual-channel casting nozzle 4 is closely matched with the roller surface 5 of the dual casting roller to form an organic body; the adjustment locking device 9 is installed on the machine base 6 of the dual casting roller; the outlet cooling device 7 is installed on the machine base 6 and is closely connected with the casting and rolling machine, and roller type and air cooling can be adopted to force solidification cooling to achieve the purpose of improving the casting and rolling quality; the dual-roller casting roller 5 is installed on the machine base 6.

[0039] In this embodiment, the chute 2 is installed on the front end of the front box 1 and is connected to the dual-channel casting nozzle 4. The dual-channel casting nozzle 4 is installed on the casting nozzle seat 3, and the front box 1 and the casting nozzle seat 3 are installed together on the adjustment locking device 9.

[0040] In this embodiment, the adjusting and locking device 9 is installed on the machine base 6, and the adjusting and locking device 9 is a mechanical screw adjusting and locking mechanism.

[0041] In this embodiment, the dual-channel casting nozzle 4 is installed between the front box 1 of the casting system and the dual casting rollers 5. The inner cavity of the dual-channel casting nozzle is a shaped cavity distributed according to mathematical laws, and each cavity is composed of a number of diverter blocks to meet the following vertical arrangement:

[0042] L=nS+mx+y+2b

[0043] Where:

[0044] —L is the total length of the inner cavity, mm;

[0045] —S is the width of the shunt block, S = 6 ~ 12mm;

[0046] —x is the edge gap length, mm;

[0047] —y is the center gap length, mm;

[0048] —b is the end gap length, b = 40 ~ 60mm;

[0049] —n is the number of diversion blocks;

[0050] —m is the number of edge gaps.

[0051] In this embodiment, the dual-channel casting nozzle 4, the diverter block 8 thereof is a triangular block structure made of special material.

[0052] In this embodiment, the base 6 can be installed in any horizontal and vertical rotation manner, and has the feature of base conversion and variableness.

[0053] The present invention adopts a double-slot double-channel casting nozzle and a double casting roller surface to form an organic cooling arc surface, extend the cooling arc length, increase the cooling contact surface, improve the cooling capacity of the roller surface, and enhance the cooling strength of the casting roller, thereby effectively improving the casting and rolling production speed and improving production efficiency. This new method and equipment for increasing the aluminum strip casting speed can be applied to the requirements of key process equipment in the high-speed roller casting and rolling production of high-strength aluminum alloy thin strips, and can also be applied to the requirements of process equipment in the medium- and low-speed thick strip roller casting and rolling production, especially to the requirements of high-speed thin strip roller casting and rolling production of high-strength aluminum alloys.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A casting and rolling equipment for increasing the casting and rolling speed, characterized in that: The invention comprises a casting nozzle, wherein at least two channels are arranged in parallel in the casting nozzle; a plurality of diverter blocks are arranged in the inner cavity of the casting nozzle; the diverter blocks are triangular block structures; and the arrangement of the diverter blocks satisfies the following vertical arrangement: L=nS+mx+y+2b Where: —L is the total length of the inner cavity, in mm; —S is the width of the shunt block, S = 6 ~ 12mm; —x is the edge gap length, in mm; —y is the center gap length, in mm; —b is the end gap length, unit is b=40~60mm; —n is the number of diversion blocks; —m is the number of edge gaps; It also includes a front box, which is divided into a plurality of liquid level isolation boxes, each of which is connected to the channel in the casting nozzle through a chute; a roller is provided on the liquid outlet side of the casting nozzle; It also includes a frame, and the rolling roller is installed on the frame; the front box, chute, and casting nozzle are all arranged on the frame by adjusting the locking device; it also includes a casting nozzle seat, and the casting nozzle is fixed in the casting nozzle seat; it also includes an outlet cooling device, and the outlet cooling device is arranged on the side of the rolling roller away from the casting nozzle; the casting nozzle includes two channels; the front box is a double liquid level isolation box, which is respectively connected to different channels of the casting nozzle.

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