CN2334519Y

CN2334519Y - Automatic pouring device for definited diameter pouring gate in continuous casting

Info

Publication number: CN2334519Y
Application number: CN 98218636
Authority: CN
Inventors: 许晓东; 李涛
Original assignee: Shougang Corp
Current assignee: Shougang Corp
Priority date: 1998-08-25
Filing date: 1998-08-25
Publication date: 1999-08-25
Anticipated expiration: 2008-08-25

Abstract

The utility model provides an automatic pouring device for a determined diameter pouring water gate in continuous casting. A steel blocking ring of the device is placed above a water gate of a pouring box. The steel blocking ring is provided with a steel overflowing hole and a slag blocking ring is arranged on the outer side of the steel blocking ring. A dummy ingot head is pushed into a crystallizer and the dummy ingot head is provided with a steel cup of a dummy ingot. Using the device can realize the automatic pouring casting operation without a swinging slot, eliminate the flow dispersing and freezing phenomenon of the steel flow, reduce the consumption of molten steel and fire resistant material and reduce the cost.

Description

Continuous casting sizing weir turn on and water the device automatically

The utility model relates to a kind of continuous casting sizing weir turn on and water the device automatically.

In the prior art, with metering nozzle cast light section strand be open water before the metering nozzle eye of tundish with blocking up on the cone blocking, sprinkle then and draw sulphur sand and Si-Ca powder, when the molten steel in the tundish is raised to certain altitude, extract stifled eye awl, under the drainage sand flow, molten steel flows out, and is injected in the following pendulum groove, after steel stream is normal, arrange the pendulum groove, molten steel is injected in the crystallizer.Because present dummy ingot device is difficult to satisfy molten steel calmness, cooling requirement, thereby, molten steel injects crystallizer after interior several seconds, also need pendulum groove pendulum is come, pick out the part molten steel, make the molten steel in the crystallizer that sufficient calmness, cool time be arranged, after tens seconds, just can arrange the pendulum groove, open the car throwing, steel is normally watered in beginning.The base head that downcuts needs artificial rotation or cutting just can unload.This pouring technique of opening tends to cause diffusing stream, freezes flow phenomenon, particularly limit stream is even more serious, need with burning the logical upward oxygen of oxygen pipe mediation drainage, very loaded down with trivial details, and waste molten steel and refractory material, hold the liquid steel temperature that waters first stove also can therefore require very high, thereby improve iron and steel stock consumption, waste of manpower, material resources increase cost.

The purpose of this invention is to provide a kind of continuous casting sizing weir turn on and water the device automatically, use this device can put groove, can realize automatic casting, stop the wandering stream of steel, freeze flow phenomenon, reduce molten steel and refractory consumption rate, reduce cost.

The purpose of this utility model is achieved in that the retaining steel ring of continuous casting sizing weir turn on and water the device automatically places the top of middle water containing opening, have steel spilling hole on the retaining steel ring, molten steel in tundish is raised to certain altitude, molten steel flows in the retaining steel ring from steel spilling hole, automatically inject metering nozzle, flow out tundish and inject crystallizer, the pushing off the slag circle places the retaining steel ring outside, purpose is after making molten steel be raised to certain altitude, flows into before the retaining steel ring, plays certain pushing off the slag effect, make scum silica frost not flow into metering nozzle as far as possible, dummy bar head heads in the crystallizer, and the dummy ingot steel bowl is arranged on the dummy bar head, and the dummy ingot steel bowl can cool off molten steel fast.

Retaining steel ring and pushing off the slag circle are hollow cylinder, highly are lower than the retaining steel ring on the pushing off the slag circle vertical direction.

The dummy ingot steel bowl is made up of cup body and cup, and cup and dummy bar head flexibly connect, and several cooling sticks are set in the cup.

The utility model is because of adopting the retaining steel ring, in the time of can making the molten steel of tundish be raised to certain altitude, inject metering nozzle automatically, realize automatic casting, stopped the wandering stream of steel, freeze flow phenomenon, adopt the pushing off the slag circle, make scum silica frost not flow into the mouth of a river as much as possible, after molten steel flows out from the mouth of a river, need not to put groove, can directly inject crystallizer, cooling stick plays cooling effect in the dummy ingot steel bowl, and the molten steel in the crystallizer can be cooled off fast, after the molten steel in the crystallizer is raised to certain altitude, open the car throwing, finish the process of watering of opening very soon, enter smoothly and normally water steel, after strand is pulled out, the base head that downcuts can come off automatically, has reduced iron and steel stock consumption, has reduced cost.

The utility model is described in more detail below in conjunction with accompanying drawing:

Fig. 1 is the structural representation of the utility model continuous casting sizing weir turn on and water the device automatically;

Fig. 2 is the front view and the side view of the retaining steel ring of the utility model continuous casting sizing weir turn on and water the device automatically;

Fig. 3 is the front view of the pushing off the slag circle of the utility model continuous casting sizing weir turn on and water the device automatically;

Fig. 4 is the front view and the vertical view of the dummy ingot steel bowl of the utility model continuous casting sizing weir turn on and water the device automatically;

Fig. 5 is the front view of the dummy bar head of the utility model continuous casting sizing weir turn on and water the device automatically.

As shown in Figure 1: the utility model continuous small-billet casting metering nozzle automatic casting apparatus comprises retaining steel ring 1, pushing off the slag circle 2, dummy ingot steel bowl 6 and dummy bar 8.As Fig. 2, shown in Figure 3: retaining steel ring 1 and pushing off the slag circle 2 are hollow cylinder, retaining steel ring 1 is built and is put above middle water containing opening, pushing off the slag circle 2 places retaining steel ring 1 outside, have steel spilling hole 9 on the retaining steel ring 1, molten steel in tundish is raised to certain altitude, molten steel flows in the retaining steel ring 1 from steel spilling hole 9, automatically inject metering nozzle 4, flow out tundish 3 and inject crystallizer 5, pushing off the slag circle 2 can make progress with the rising of molten steel and float, and purpose is to be raised to certain altitude at molten steel, play the pushing off the slag effect before flowing into retaining steel ring 1, make the scum silica frost in the molten steel not flow into metering nozzle 4 as far as possible, the molten steel that flow in the retaining steel ring 1 flows out metering nozzle 4 automatically, is injected in the following crystallizer 5.Use the utility model can block up eye awl and drainage sand, can realize automatic casting, avoid taking place molten steel and freeze stream and diffusing flow phenomenon.Molten steel need not to put groove after flowing out from the mouth of a river 4, can directly inject crystallizer.Dummy bar 8 is headed into crystallizer 5, it is suitable for reading earlier the dummy bar head above the dummy bar 7 to be stretched out crystallizer 5, as shown in Figure 4: dummy ingot steel bowl 6 is made up of cup body 10 and cup 12, there is the connector 14 of a convex in the cup centre, be complementary with the concave groove 15 on dummy bar head surface, the convex connector 14 of dummy ingot steel bowl is inserted the concave groove 15 of dummy bar head, dummy ingot steel bowl and dummy bar head are linked together, seal with asbestos pad 13 between dummy ingot steel bowl 6 and the dummy bar head 7, and then dummy ingot steel bowl 6 and 7 one of dummy bar heads retracted in the crystallizer 5, the cooling stick 11 that several reinforcing bars are made is set in the dummy ingot steel bowl 6, plays cooling effect, the molten steel in the crystallizer can be cooled off fast, molten steel can reach calm cooling requirement in very short time, after the molten steel in the crystallizer is raised to certain altitude, open the car throwing, finish the process of watering of opening very soon, enter smoothly and normally water steel, after strand was pulled out, the base head of cutting-out can come off automatically, need not manually rotate, cutting.Use the utility model, can put groove, reduce the loss of molten steel and the refractory consumption rate of pendulum groove, realize automatic casting, stop the wandering stream of steel, freeze flow phenomenon, and reduced the tapping temperature of even watering first stove, iron and steel stock consumption can reduce about 1.5 kilograms of/ton steel, can reduce labor strength in addition, reduce cost.

Dummy ingot steel bowl of the present utility model is not limited in continuous casting metering nozzle casting process and uses.

Claims

1, a kind of continuous casting sizing weir turn on and water the device automatically, comprise dummy bar (8), it is characterized in that: retaining steel ring (1) places the top of middle water containing opening (4), and pushing off the slag circle (2) places retaining steel ring (1) outside, have the steel mouth (9) that overflows on the retaining steel ring, dummy ingot steel bowl (6) is arranged on the dummy bar head (7).

2, continuous casting sizing weir turn on and water the device automatically as claimed in claim 1 is characterized in that: retaining steel ring (1) is a hollow cylinder with pushing off the slag circle (2), highly is lower than the retaining steel ring on the pushing off the slag circle vertical direction.

3, continuous casting sizing weir turn on and water the device automatically as claimed in claim 1, it is characterized in that: dummy ingot steel bowl (6) is made up of cup body (10) and cup (12), cup (12) flexibly connects with dummy bar head (7), and several cooling sticks (11) are set in the cup (12).