Leakage protection device for downward continuous casting

Abstract

The utility model discloses a liquid leakage protection device for downward continuous casting. The liquid leakage protection device comprises a protection shell with an opening in the top. A casting guide window is formed in the inner bottom of the protective shell; overturning plates are hinged to the two sides of the casting guide window; a guide casting blank is arranged in the guide casting window in a penetrating manner; the two side walls of the guide casting blank are in sliding contact with the two overturning plates; and the inner bottom of the protective shell is also provided with a protective filler. The guide casting window is arranged at the bottom of the protective shell, the overturning plates are hinged to the two sides of the guide casting window, when a guide casting blank is broken, the overturning plates close the guide casting window under the action of the gravity of the overturning plates, and therefore solution leakage is avoided, meanwhile, the protective filler is arranged in the protective shell, and the guide casting blank is prevented from being broken. The protective filler is used for absorbing and removing the metal solution, explosion caused by the metal solution and water is avoided, and therefore the production safety of downward continuous casting is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of metal smelting technology, in particular to a liquid leakage protection device for down-draw continuous casting Background Art

[0002] As one of the common methods of continuous casting, the down-draw method is widely used in the preparation of long-length materials because of its high density of the finished product, controllable grain morphology and the fact that the material can be drawn. However, its current application scenarios are not widespread. The main reason is that if the draw is broken, the molten metal will pour out from the crystallizer mouth, and the leakage of high-temperature molten metal will endanger the safety of life and property.

[0003] However, the excellent grain morphology and finished product performance of down-draw continuous casting make it irreplaceable in special miniaturized applications such as bonding wire (the thinnest is 0.009mm) and ultra-fine stranded wire (single wire is up to 0.014mm).

[0004] Therefore, it is necessary to design a leakage protection device for down-draw continuous casting to eliminate the above-mentioned safety hazards. Utility Model Content

[0005] The utility model aims to solve the potential safety problems in the down-draw continuous casting process in the prior art and to propose a liquid leakage protection device for down-draw continuous casting.

[0006] The technical solution of the utility model is: a leakage protection device for downward continuous casting, comprising a protective shell with an opening at the top; a casting window is provided at the inner bottom of the protective shell; flip plates are hinged on both sides of the casting window; a casting billet is passed through the casting window; the two side walls of the casting billet are in sliding contact with two flip plates; a protective filler is also provided at the inner bottom of the protective shell; a through hole for the casting billet to pass through is provided on the protective filler corresponding to the casting window; when the casting billet breaks, the flip plate closes the casting window under the action of its own gravity.

[0007] The contact surface between the turning plate and the casting blank is configured as an arc surface.

[0008] The protective filler comprises a base layer, a fireproof layer and a liquid absorbing layer which are sequentially arranged on the base layer; the base layer, the fireproof layer and the liquid absorbing layer are sequentially arranged in the protective shell from bottom to top.

[0009] The base layer is a graphite sheet.

[0010] The fireproof layer is refractory bricks.

[0011] The liquid absorbing layer is quartz sand.

[0012] By adopting the above technical solution, the utility model has the following beneficial effects: the utility model is provided with a casting window at the bottom of the protective shell, and flip plates are hinged on both sides of the casting window. When the casting billet breaks, the flip plates close the casting window under the action of their own gravity, thereby avoiding leakage of the solution. At the same time, a protective filler is provided in the protective shell, and the metal solution is absorbed by the protective filler to avoid explosion caused by its reaction with water, thereby ensuring the safety of the bottom-draw continuous casting production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0014] Figure 1 It is a structural diagram of the present utility model.

[0015] The reference numerals in the accompanying drawings are:

[0016] Protective shell 1, casting window 2, turning plate 3, casting blank 4, protective filler 5. DETAILED DESCRIPTION

[0017] (Example 1)

[0018] See Figure 1 , a leakage protection device for downward continuous casting in this embodiment includes a protective shell 1 with an opening at the top; a casting window 2 is provided at the inner bottom of the protective shell 1; flip plates 3 are hinged on both sides of the casting window 2; a casting billet 4 is passed through the casting window 2; the two side walls of the casting billet 4 are in sliding contact with the two flip plates 3; a protective filler 5 is also provided at the inner bottom of the protective shell 1; a through hole for the casting billet 4 to pass through is provided on the protective filler 5 corresponding to the casting window 2; when the casting billet 4 breaks, the flip plate 3 closes the casting window 2 under the action of its own gravity.

[0019] Furthermore, the contact surface between the turning plate 3 and the casting blank 4 is set to an arc surface to ensure that the casting blank 4 will not be stuck between the turning plate 3 when being drawn down, so as to ensure stable casting.

[0020] Furthermore, the protective filler 5 includes a base layer and a fireproof layer and a liquid absorption layer arranged in sequence on the base layer; the base layer, the fireproof layer and the liquid absorption layer are arranged in sequence in the protective shell 1 from bottom to top, and the protective filler 5 adopts a multi-layer structure design to ensure that the protective filler 5 is promptly removed when the metal solution leaks, further improving the safety of production. At the same time, the multi-layer structure design also facilitates the cleaning of the protective filler 5.

[0021] Preferably, the base layer is a graphite sheet.

[0022] Preferably, the fireproof layer is refractory bricks.

[0023] Preferably, the liquid absorbing layer is quartz sand.

[0024] The leakage protection device for downward continuous casting in this embodiment is provided with a casting window 2 at the bottom of the protective shell 1, and flip plates 3 are hinged on both sides of the casting window 2. When the casting billet 4 breaks, the flip plates 3 close the casting window 2 under the action of their own gravity, thereby avoiding leakage of the solution. At the same time, a protective filler 5 is provided in the protective shell 1. The protective filler 5 is used to absorb the metal solution to avoid its reaction with water and causing an explosion, thereby ensuring the safety of the downward continuous casting production.

[0025] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A leakage protection device for downdraw continuous casting, characterized by: The invention comprises a protective shell (1) with a top opening; a casting window (2) is provided at the inner bottom of the protective shell (1); flip plates (3) are hinged on both sides of the casting window (2); a casting blank (4) is passed through the casting window (2); the two side walls of the casting blank (4) are in sliding contact with the two flip plates (3); a protective filler (5) is also provided at the inner bottom of the protective shell (1); a through hole for the casting blank (4) to pass through is provided on the protective filler (5) at a position corresponding to the casting window (2); when the casting blank (4) breaks, the flip plate (3) closes the casting window (2) under the action of its own weight.

2. The liquid leakage protection device for downdraw continuous casting according to claim 1, characterized in that: The contact surface between the turning plate (3) and the lead casting blank (4) is configured as an arc surface.

3. The liquid leakage protection device for downdraw continuous casting according to claim 1, characterized in that: The protective filler (5) comprises a base layer, and a fireproof layer and a liquid-absorbing layer sequentially arranged on the base layer; the base layer, the fireproof layer and the liquid-absorbing layer are sequentially arranged in the protective shell (1) from bottom to top.

4. The liquid leakage protection device for downdraw continuous casting according to claim 3, characterized in that: The base layer is a graphite sheet.

5. The liquid leakage protection device for downdraw continuous casting according to claim 3, characterized in that: The fireproof layer is refractory bricks.

6. The liquid leakage protection device for downdraw continuous casting according to claim 3, characterized in that: The liquid absorbing layer is quartz sand.

Images