CN2805981Y

CN2805981Y - Apparatus for ejecting drainage sand for continuous casting large ladle gating

Info

Publication number: CN2805981Y
Application number: CN 200520073801
Authority: CN
Inventors: 阮小江; 张国伟; 冷永磊
Original assignee: Jiangyin Xingcheng Special Steel Works Co Ltd
Current assignee: Jiangyin Xingcheng Special Steel Works Co Ltd
Priority date: 2005-07-21
Filing date: 2005-07-21
Publication date: 2006-08-16
Anticipated expiration: 2015-07-21

Abstract

The utility model relates to an apparatus for ejecting drainage sand for continuous casting large ladle gating, which belongs to the technical field of continuous casting metallurgy. The utility model comprises a large ladle (1), a protective sleeve pipe (2) and a tundish (4), wherein the protective sleeve pipe (2) is sheathed at a lower water opening of the large ladle (1), and the tundish (4) is arranged below the large ladle (1). The utility model is characterized in that a sand receiving spoon (3) is arranged between the large ladle (1) and the tundish (4), and the sand receiving spoon (3) aims at a lower opening of the protective sleeve pipe (2) of the lower water opening of the large ladle (1). The utility model has the advantage of safe and convenient operation, the preparation time is increased, the self-open rate is not influenced, normal production is ensured, the drainage sand can be drained outside the tundish and the purity of the molten steel is raised.

Description

The discharging continuous casting is unwrapped greatly and is watered drainage sand device

Technical field:

The utility model relates to a kind of discharging continuous casting and unwraps greatly and water drainage sand device.Belong to the continuous casting metallurgical technology field.

Background technology:

At present, continuous casting is unwrapped greatly and is watered back drainage sand mouth of a river under the big bag and flow into tundish through big bag protective sleeve in the ordinary course of things, and its composition is mainly Cr ₃O ₄, SiO ₂And graphite, severe contamination tundish molten steel forms foreign impurity, influences steel product quality.

Once attempted drainage sand is come outside the tundish, before Da Bao forwards the basket pouring position to, opened big bag slide plate, shut again after having put sand, and forwarded cast again to and open and to water.So promptly increase time, reduced big bag self-opening rate again, increased the stove number that burns oxygen, aggravated the secondary oxidation of molten steel, also had certain danger.

Summary of the invention:

The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of and both drainage sand can be come outside the tundish, can not increase time again, and the discharging continuous casting that does not influence big bag self-opening rate is unwrapped greatly and watered drainage sand device.

The purpose of this utility model is achieved in that a kind of discharging continuous casting is unwrapped greatly and waters drainage sand device; comprise: big bag, protective casing and tundish; protective casing is placed on the mouth of a river under the big bag; tundish places big bag below; it is characterized in that: between described big bag and tundish, be provided with and connect the sand spoon, connect the sand spoon and aim at the big bag protective casing end opening at the mouth of a river down.

Operating process:

Big bag forwards the cast position to, packages protective casing, will connect the sand spoon and aim at the protective casing end opening, opens big bag slide plate, and drainage sand falls into and connects the sand spoon, removes before under molten steel and connects the sand spoon, falls big bag and produces.

Adopt this device discharging continuous casting to unwrap greatly to water drainage sand and have following advantage:

1, handling safety, convenient does not increase time;

2, do not influence big bag self-opening rate, guaranteed to produce normal;

3, drainage sand can be discharged into outside the tundish, improve the molten steel degree of purity.

Description of drawings:

Fig. 1 is a general structure schematic diagram of the present utility model.

Fig. 2 is the sand spoon structural representation that connects of the present utility model.

The specific embodiment:

Referring to Fig. 1, the utility model is that a kind of discharging continuous casting is unwrapped greatly and watered drainage sand device.It mainly by big bag 1, protective casing 2, connect sand spoon 3 and tundish 4 is formed.

Described protective casing 2 is placed on 1 time mouth of a river of big bag, and tundish 4 places big bag 1 below, connects sand spoon 3 and places between big bag 1 and the tundish 4, connects sand spoon 3 and aims at big bag protective casing 2 end openings at the mouth of a river down.

Claims

1, a kind of discharging continuous casting is unwrapped greatly and is watered drainage sand device; comprise: big bag (1), protective casing (2) and tundish (4); protective casing (2) is placed on the mouth of a river under the big bag (1); tundish (4) places Da Bao (1) below; it is characterized in that: between described big bag (1) and tundish (4), be provided with and connect sand spoon (3), connect sand spoon (3) and aim at big bag protective casing (2) end opening at the mouth of a river down.