CN103240410A

CN103240410A - Sliding nozzle device for improving molten steel cleanliness by separating and recovering stuffing sand

Info

Publication number: CN103240410A
Application number: CN2013101836567A
Authority: CN
Inventors: 张继虎; 孙庆亮; 何孝文
Original assignee: Laiwu Iron and Steel Group Co Ltd
Current assignee: Laiwu Iron and Steel Group Co Ltd
Priority date: 2013-05-17
Filing date: 2013-05-17
Publication date: 2013-08-14
Anticipated expiration: 2033-05-17
Also published as: CN103240410B

Abstract

The invention discloses a sliding nozzle device for improving molten steel cleanliness by separating and recovering stuffing sand. The sliding nozzle device comprise a ladle brick seat, wherein a water feeding port is sleeved in the ladle brick seat, an upper sliding plate fixed at the bottom of the ladle brick seat is arranged at the lower end of the water feeding port, a steel flowing hole corresponding to the water feeding port is arranged on the upper sliding plate, and a lower sliding plate is arranged at the lower end of the upper sliding plate in sliding mode. The sliding nozzle device is characterized in that a sand flowing hole and a steel flowing hole are arranged on the lower sliding plate, and the distance between the sand flowing hole and the steel flowing hole is larger than the steel flowing hole of the upper sliding plate. A corresponding water draining port is fixed at the lower end of the steel flowing hole, a recovery tank is correspondingly arranged below the sand flowing hole, stuffing sand is filled in the recovery tank and the sand flowing hole, and the remained space of the recovery tank and the stuffing sand is as same as the amount of the stuffing sand filled into a ladle. Compared with the prior art, the sliding nozzle device can separate and recover the stuffing sand and obtain clean molten steel, and has the advantages of being simple in structure and convenient to operate.

Description

Reclaim the sliding nozzle device that drainage sand improves the molten steel cleanliness factor by separating

Technical field

The invention belongs to smelting molten steel running gate system equipment, particularly a kind of slide gate nozzle formula steel ladle by drainage sand drainage molten steel is opened in the process of watering in cast, carries out the drainage sand separation and reclaims, and obtains the sliding nozzle device of purifying of steel.

Background technology

At present, in continuous-cast blank and die casting production line production process, because the cast of slide gate nozzle formula steel ladle is opened when watering, unsintered drainage sand flow goes into to pour into a mould passage, pollutes molten steel, has influenced the cleanliness factor of molten steel.The drainage sand that flows into, quality problems such as inner and surface can produce nonmetal inclusion at product, and local reaction point composition is inconsistent have had a strong impact on quality requirement and the serviceability of product.And drainage sand once uses, and causes and produces waste.

Summary of the invention

The objective of the invention is at above slide gate nozzle formula molten steel unwrap the problem that exists in the process of watering and design a kind of simple in structure, easy to operate, and the drainage sand separation can be reclaimed, obtain a kind of sliding nozzle device of purifying of steel.

For achieving the above object, the present invention by the following technical programs:

A kind of sliding nozzle device by separation recovery drainage sand raising molten steel cleanliness factor comprises the refractory brick seat, is arranged with filling pipe end in the refractory brick seat, and the filling pipe end lower end is provided with the upper slide that is fixed on brick seat bottom, and upper slide is provided with the steel outlet hole corresponding with filling pipe end; Slide and be provided with lower skateboard in the upper slide lower end, be provided with two through holes with steel outlet hole on the described lower skateboard: quicksand hole and steel outlet hole, distance between two holes is greater than the steel outlet hole of upper slide, below, quicksand hole is to there being recycling can, in in the recycling can and the quicksand hole drainage sand is housed, the remaining space of recycling can and drainage sand and join ladle to draw sand carrying capacity identical; Fixedly there is the corresponding following mouth of a river lower end of steel outlet hole.

Further, upper slide is provided with the choked flow side plate.

Further, be provided with asbestos board bottom the described recycling can; The neck of jar is drilled with some tiny steam vents

Operation principle and the beneficial effect of invention show:

Lower skateboard lengthens, and increases a quicksand hole, becomes diplopore by single hole; Below the quicksand hole, adorn a recycling can, be used for reclaiming drainage sand.Filling pipe end and upper slide are fixed on the bag end by mechanism's part; The mouth of a river under the disjunctor that lower skateboard and the following mouth of a river are integral type is fixed in the slip planker together.

Recycling can is the heat-resisting steel structural member that has snap joint, connects fast with the slip planker.The neck of jar is drilled with some tiny steam vents, the jar inner bottom part is placed a soft asbestos board, play the effect of getting jar compensator or trimmer pressure, the steel flow port that the recycling can capacity should satisfy filling pipe end and upper slide is owing to washing away and corroding of molten steel causes internal orifice dimension to become maximum drainage sand addition before scrapping greatly.

Determining of yield: untapped lower skateboard quicksand hole is placed on the recycling can, and the drainage sand that preheating is good is filled it up with recycling can and quicksand hole (also can control the height of adding as required) from the quicksand hole, and this total amount is yield.Before the tapping, the drainage sand in the yield is added in the ladle, remaining staying in the jar loaded onto recycling can again.Open when watering, the mouth of a river makes lower skateboard quicksand hole and upper slide steel outlet hole UNICOM under the disjunctor under the dragging of slip planker, and unsintered drainage sand flows into recycling can rapidly; Instantaneous, the slip planker drags under the disjunctor mouth of a river to lower skateboard steel outlet hole and upper slide steel outlet hole UNICOM, and automatic casting obtains clean molten steel.

Description of drawings

In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, the accompanying drawing that describes below only is some embodiment that put down in writing among the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings;

Fig. 1 is the vertical view of upper slide of the present invention;

Fig. 2 is the vertical view of lower skateboard of the present invention;

Fig. 3 is structural principle schematic diagram of the present invention;

Fig. 4 sets up the spoiler schematic diagram for upper slide of the present invention;

In the accompanying drawing, 1---steel base brick, 2---the upper slide steel outlet hole, 3---lower skateboard quicksand hole, 4---lower skateboard, 5---the snap joint on the planker, 6---steam vent, 7---recycling can, 8---soft asbestos board, 9---the following mouth of a river, 10---the lower skateboard steel outlet hole, 11---the slip planker, 12---the upper slide fixed head, 13---alignment pin, 14---connecting plate, 15---upper slide, 16---filling pipe end.

The specific embodiment

The correlation technique content of not addressing below all can adopt or use for reference prior art.

In order to make those skilled in the art person understand technical scheme among the application better, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all should belong to the scope of the application's protection.

As Figure 1-3, reclaim the sliding nozzle device that drainage sand improves the molten steel cleanliness factor by separating, comprise filling pipe end 16, filling pipe end 16 is packed in the steel base brick 1, upper slide 15 in the upper slide fixed head 12 of packing into, is fixed in the bag end by the alignment pin 13 that is fixed in the connecting plate 14 as shown in Figure 1; Lower skateboard 4 as shown in Figure 2, with the following mouth of a river 9 be the mouth of a river under the disjunctor, in the slip planker 11 of packing into; The drainage sand that preheating is good fills up quicksand hole 3 and recycling can 7; determine that drainage sand reclaims height; again the drainage sand in this amount of inserting is added in the ladle; remaining staying in the jar; the snap joint of recycling can connects with snap joint 5 on the planker; load onto recycling can 3, guarantee yield and addition equivalent.

Fig. 4 is a choked flow side plate of setting up on the upper slide basis of using at present; Its objective is shutoff is carried out in lower skateboard drift sand hole that guarantee that slide plate slides is smooth and easy up and down, shutoff is tight.

Open when watering, lower skateboard 4 makes lower skateboard quicksand hole 3 and upper slide steel outlet hole 2 UNICOMs under the dragging of slip planker 11, and unsintered drainage sand flows into recycling can 7 and quicksand hole 3 rapidly; Instantaneous, slip planker 11 drags lower skateboard 4 to lower skateboard steel outlet hole 10 and upper slide steel outlet hole 2 UNICOMs, and molten steel flows out, and obtains the purifying of steel that does not have drainage sand to pollute.

The above only is the application's preferred embodiment, makes those skilled in the art can understand or realize the application.Multiple modification to these embodiment will be apparent to one skilled in the art, and defined General Principle can realize under the situation of the spirit or scope that do not break away from the application in other embodiments herein.Therefore, the application will can not be restricted to these embodiment shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.

Claims

1. the sliding nozzle device by separation recovery drainage sand raising molten steel cleanliness factor comprises the refractory brick seat, is arranged with filling pipe end in the refractory brick seat, and the filling pipe end lower end is provided with the upper slide that is fixed on brick seat bottom, and upper slide is provided with the steel outlet hole corresponding with filling pipe end; Sliding and be provided with lower skateboard in the upper slide lower end, it is characterized in that: be provided with two through holes with steel outlet hole on the described lower skateboard: quicksand hole and steel outlet hole, and the distance between two holes is greater than the steel outlet hole of upper slide; Fixedly there is the corresponding following mouth of a river lower end of steel outlet hole.

2. according to claim 1 by separating the sliding nozzle device that reclaims drainage sand raising molten steel cleanliness factor, it is characterized in that: below, quicksand hole is to there being recycling can, in in the recycling can and the quicksand hole drainage sand is housed, the remaining space of recycling can and drainage sand and join ladle to draw sand carrying capacity identical.

3. according to claim 1 by separating the sliding nozzle device that reclaims drainage sand raising molten steel cleanliness factor, it is characterized in that: upper slide is provided with the choked flow side plate.

4. according to claim 1 by separating the sliding nozzle device that reclaims drainage sand raising molten steel cleanliness factor, it is characterized in that: described recycling can bottom is provided with asbestos board.

5. according to claim 1 or 4 described sliding nozzle devices by separation recovery drainage sand raising molten steel cleanliness factor, it is characterized in that: the neck of jar is drilled with some tiny steam vents.