CN209867339U - Flowerpot type tundish flow stabilizer for mixing mill - Google Patents

Abstract

The utility model relates to a metallurgical supplementary material technical field provides a current stabilizer among pot type for mixing roll, aims at solving traditional well package current stabilizer and adopts the impingement plate, in the aspect of improving the molten steel cleanliness factor, alleviating the molten steel and to the washing away of package wall, the impingement plate has obvious defect, influences the problem of molten steel pouring quality, including pot type stationary flow shell, the inner wall upper portion of pot type stationary flow shell is equipped with the arc splashproof portion that inwards inclines and be cyclic annular setting, and the inner chamber lower part slidable mounting of pot type stationary flow shell has two impingement plates, two the impingement plate passes through fixed subassembly interconnect, and the upper end of impingement plate is equipped with a plurality of triangle prism teeth, a plurality of expanding spring are installed to the lower extreme of impingement plate, and expanding spring's lower extreme is installed on the interior diapire of pot type stationary flow shell; the utility model discloses be particularly useful for improving the molten steel cleanliness factor, alleviate the molten steel to the erodeing of package wall, have higher social use value and application prospect.

Description

Flowerpot type tundish flow stabilizer for mixing mill

Technical Field

The utility model relates to a metallurgical material technical field of assisting, concretely relates to stable flow device is wrapped to mixing roll in flowerpot formula.

Background

The tundish flow stabilizer is a functional refractory material which is arranged at the bottom of a tundish impact area and used for stabilizing the flow of molten steel in a tundish nozzle area, preventing steel slag from being involved in the molten steel to cause the internal quality defect of a continuous casting billet, promoting inclusions to float upwards and reducing molten steel splashing.

The conventional tundish flow stabilizer mostly adopts an impact plate to slow down the scouring of molten steel on a tundish working layer near an impact area, so that the ladle age is further improved, but the impact plate has obvious defects in the aspects of improving the cleanliness of the molten steel and relieving the scouring of the molten steel on a ladle wall. Because the ladle casting flow has great kinetic energy, the jet flow cannot be completely mixed with surrounding molten steel immediately, the jet flow has great impact force on the ladle bottom, when the impact plate is used, the steel flow directly flows to a tundish nozzle along the ladle bottom to form short-circuit flow, and inclusions in the steel flow have no chance or do not float for enough time, so that the inclusions are discharged from the nozzle, and the pouring quality of the molten steel is influenced.

Therefore, a flowerpot type tundish flow stabilizer for the mixing mill is provided.

SUMMERY OF THE UTILITY MODEL

(1) Technical problem to be solved

An object of the utility model is to overcome prior art's is not enough, adapts to reality needs, provides a well current stabilizer among mixing mill with the flowerpot formula to solve traditional well package current stabilizer and adopt the impingement plate, improve the molten steel cleanliness factor, alleviate the molten steel to the aspect of washing away of package wall, the impingement plate has obvious defect, influences the problem of molten steel pouring quality.

(2) Technical scheme

In order to realize the utility model discloses a purpose, the utility model discloses the technical scheme who adopts does:

the utility model provides a current stabilizer is wrapped to mixing roll for jardiniere, includes jardiniere formula stationary flow shell, the inner wall upper portion of jardiniere formula stationary flow shell is equipped with the leanin and is the arc splashproof portion of cyclic annular setting, and the inner chamber lower part slidable mounting of jardiniere formula stationary flow shell has two impingement plates, two the impingement plate is through fixed subassembly interconnect, and the upper end of impingement plate is equipped with a plurality of triangle prism teeth, a plurality of expanding spring are installed to the lower extreme of impingement plate, and expanding spring's lower extreme is installed on the interior diapire of jardiniere formula stationary flow shell.

Preferably, the fixed assembly comprises a plurality of groups of fixed plates which are respectively arranged at the upper ends of the two impact plates, each group of fixed plates are symmetrically arranged, each group of fixed plates are all penetrated and inserted with screw rods, and fastening nuts are installed at the two ends of each screw rod through threads.

Preferably, the lower ends of the opposite sides of the two impact plates are provided with lower supporting plates, and one end of each lower supporting plate is fixedly installed at the lower end of one of the impact plates through a fastening screw.

Preferably, the lateral wall upper portion cover of flowerpot formula stationary flow shell is equipped with epitaxial step, and two lugs are installed to the symmetry on the epitaxial step.

Preferably, the lower part of the side wall of the flowerpot type flow stabilizing shell is sleeved with a fixed lantern ring, and the edge width of the fixed lantern ring is 10-18 cm.

Preferably, two the impingement plate all is the semicircular structure with flowerpot formula stationary flow shell inner wall assorted, the quantity of triangle prism tooth more than or equal to 10, and a plurality of triangle prism teeth are equidistance parallel arrangement.

(3) Has the advantages that:

1. through the integrated configuration of flowerpot formula stationary flow shell and arc splashproof portion, flowerpot formula stationary flow shell combines arc splashproof portion, and the effectual strong vortex restriction that causes the jet impact reduces the probability that the sediment was rolled up to the molten steel in the local region, promotes the come-up of inclusion in the molten steel, and the inner wall of simultaneously jet impact striking flowerpot formula stationary flow shell cooperates arc splashproof portion, and the effectual molten steel that prevents sputters away and injures the people, guarantees the processing personnel safety.

2. Through the combined structure of the impact plate, the triangular prism teeth and the fixing component, the fixing component effectively combines the two semicircular impact plates together to be matched with the inner wall of the flowerpot type steady flow shell, the triangular prism teeth are arranged at the upper end of the impact plate to present a washing plate shape, and after molten steel is poured on the washing plate shape, most of the impact force of the molten steel on the molten steel around can be counteracted, so that the occurrence of eddy current is reduced, and the fluctuation of the liquid level of the molten steel is reduced.

3. Through the combined structure of the impact plate and the telescopic spring, when molten steel in the mixing machine enters the tundish and impacts the inner cavity of the flowerpot type flow stabilizing shell, the molten steel impacts the impact plate firstly, the impact plate is driven to move downwards by being matched with the compression retraction of the telescopic spring, the impact force is effectively relieved, the impact plate and the inner wall of the flowerpot type flow stabilizing shell are protected, and the service life of the equipment is prolonged.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view of the structure of the present invention;

FIG. 3 is a schematic view of a combination structure of the striking plate, triangular prism teeth and fixing component according to the present invention;

fig. 4 is an enlarged schematic view of the structure a in fig. 2.

In the figure: the flowerpot type flow stabilizing device comprises a flowerpot type flow stabilizing shell 1, an extending step 2, a lifting lug 3, a fixing lantern ring 4, an arc-shaped splash-proof part 5, an impact plate 6, triangular prism teeth 7, a fixing assembly 8, a fixing plate 81, a screw rod 82, a fastening nut 83, a lower supporting plate 85, a fastening screw 86 and a telescopic spring 9.

Detailed Description

The invention will be further described with reference to the following figures 1-4 and examples:

the utility model provides a current stabilizer is wrapped to flowerpot formula for mixing roll, includes flowerpot formula stationary flow shell 1, the inner wall upper portion of flowerpot formula stationary flow shell 1 is equipped with the leanin and is the arc splashproof portion 5 of cyclic annular setting, the molten steel efflux in the mixing roll has very big impact force, flowerpot formula stationary flow shell 1 combines arc splashproof portion 5, the effectual strong vortex restriction that arouses the efflux impact reduces the probability that the sediment was rolled up to the molten steel, promotes the come-up of the interior clip debris of molten steel, the inner wall of efflux impact striking flowerpot formula stationary flow shell 1 simultaneously cooperates arc splashproof portion 5, the effectual molten steel that prevents sputters away and injures the people, guarantees processing personnel safety, the inner chamber lower part slidable mounting of flowerpot formula stationary flow shell 1 has two strikers 6, two the strikers 6 are through fixed subassembly 8 interconnect, and the upper end of strikers 6 is equipped with a plurality of triangular prism teeth 7, the triangular prism teeth 7 are arranged at the upper end of the impact plate 6 and present a washing plate shape, in the using process, particularly in the early stage of self-steel casting, molten steel splashes, the molten steel around is impacted, the molten steel is caused to have eddy, the liquid level is seriously floated, and the constant flow effect of the common impact plate 6 is very poor; the molten steel impact force of the molten steel on the surrounding molten steel can be mostly counteracted after the molten steel is poured on the impact plate 6 similar to a washing plate, so that the occurrence of eddy currents is reduced, and the fluctuation of the molten steel liquid level is reduced, the lower end of the impact plate 6 is provided with a plurality of extension springs 9, the lower ends of the extension springs 9 are arranged on the inner bottom wall of the flowerpot type flow stabilizing shell 1, when the molten steel in the mixing machine enters a tundish to impact the inner cavity of the flowerpot type flow stabilizing shell 1, the molten steel firstly impacts the impact plate 6 and is matched with the compression retraction of the extension springs 9 to drive the impact plate 6 to move downwards, the impact force is effectively relieved, the impact plate 6 and the inner wall of the flowerpot type flow stabilizing shell 1 are protected, and the service life of the equipment is prolonged.

In this embodiment, as shown in fig. 4, the fixing assembly 8 includes a plurality of sets of fixing plates 81 respectively disposed at the upper ends of the two impact plates 6, each set of fixing plates 81 is symmetrically disposed, each set of fixing plates 81 is inserted with a screw rod 82, in this embodiment, each set of fixing plates 81 includes a single fixing plate 81 respectively disposed on the two impact plates 6, fastening nuts 83 are installed at both ends of the screw rod 82, the screw rod 82 is inserted into the fixing plates 81 and is matched with the fastening nuts 83 to fix the two impact plates 6, so that the two impact plates 6 can bear the impact force of molten steel jet flow when combined, and the telescopic spring 9 is matched to buffer the impact force.

In this embodiment, as shown in fig. 2 and 4, the lower ends of the opposite sides of the two impact plates 6 are provided with lower support plates 85, one ends of the lower support plates 85 are fixedly mounted at the lower end of one of the impact plates 6 through fastening screws 86, and the lower support plates 85 are arranged to facilitate assembly of the two lower support plates 85, so that the two impact plates 6 are combined into a whole, and the fixing assembly 8 is mounted conveniently.

In this embodiment, as shown in fig. 1 and 2, the lateral wall upper portion cover of flowerpot type stationary flow shell 1 is equipped with epitaxial step 2, and the symmetry is installed two lugs 3 on the epitaxial step 2, and the effectual flowerpot type stationary flow shell 1 that consolidates of epitaxial step 2 combines two lugs 3 to be convenient for install and change the middle package current stabilizer of flowerpot type.

In this embodiment, as shown in fig. 1 and 2, a fixed lantern ring 4 is sleeved on the lower portion of the side wall of the flowerpot type flow stabilizing shell 1, the edge width of the fixed lantern ring 4 is 10-18 cm, and the fixed lantern ring 4 is connected with the inner bottom wall of the tundish when the flowerpot type flow stabilizing shell 1 is installed on site, so that the flowerpot type flow stabilizing shell 1 is prevented from floating after molten steel is poured into the tundish.

In this embodiment, as shown in fig. 3, the two impact plates 6 are both in a semicircular structure matched with the inner wall of the flowerpot type flow stabilizing housing 1, the number of the triangular prism teeth 7 is more than or equal to 10, the triangular prism teeth 7 are arranged in parallel at equal intervals, the two impact plates 6 in the semicircular structure are combined into a complete circular structure to match the inner cavity structure of the flowerpot type flow stabilizing housing 1, so that the impact plates 6 can bear jet impact of molten steel in the mixing machine and protect the flow stabilizing device, and meanwhile, after the molten steel is poured onto the triangular prism teeth 7 arranged in parallel at equal intervals, most of impact force of the molten steel on the molten steel around can be counteracted, so that occurrence of eddy currents is reduced, fluctuation of the liquid level of the molten steel is reduced, and the flow stabilizing effect is better.

The embodiment of the present invention discloses a preferred embodiment, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention according to the above embodiment, and make different extensions and changes, but do not depart from the spirit of the present invention, all of which are within the protection scope of the present invention.

Claims (6)

1. The utility model provides a current stabilizer is wrapped to mixing roll for jardiniere, includes jardiniere formula stationary flow shell, its characterized in that, the inner wall upper portion of jardiniere formula stationary flow shell is equipped with the leanin and is the arc splashproof portion of cyclic annular setting, and the inner chamber lower part slidable mounting of jardiniere formula stationary flow shell has two impingement plates, two the impingement plate is through fixed subassembly interconnect, and the upper end of impingement plate is equipped with a plurality of triangular prism teeth, a plurality of expanding spring are installed to the lower extreme of impingement plate, and expanding spring's lower extreme is installed on the interior diapire of jardiniere formula stationary flow shell.

2. The pot type tundish flow stabilizer for the mixing mill according to claim 1, wherein: the fixed assembly comprises a plurality of groups of fixed plates which are arranged at the upper ends of the two impact plates respectively, each group of fixed plates are symmetrically arranged, each group of fixed plates is penetrated through and inserted with a screw rod, and fastening nuts are installed at the two ends of the screw rod in a threaded mode.

3. The pot type tundish flow stabilizer for the mixing mill according to claim 1, wherein: the lower end of one side opposite to the two impact plates is provided with a lower supporting plate, and one end of the lower supporting plate is fixedly arranged at the lower end of one of the impact plates through a fastening screw.

4. The pot type tundish flow stabilizer for the mixing mill according to claim 1, wherein: the lateral wall upper portion cover of flowerpot formula stationary flow shell is equipped with epitaxial step, and two lugs are installed to the symmetry on the epitaxial step.

5. The pot type tundish flow stabilizer for the mixing mill according to claim 1, wherein: the lower part of the side wall of the flowerpot type flow stabilizing shell is sleeved with a fixed lantern ring, and the edge width of the fixed lantern ring is 10-18 cm.

6. The pot type tundish flow stabilizer for the mixing mill according to claim 1, wherein: two the impingement plate all is and flowerpot formula stationary flow shell inner wall assorted semicircular structure, the quantity of triangle prism tooth more than or equal to 10, and a plurality of triangle prism teeth are equidistance parallel arrangement.