CN201071378Y - Hot metal desulfurization propulsion agitator head - Google Patents

Abstract

The utility model discloses a propulsion stirrer head for hot metal desulphurization, which comprises a joint lever (1) and four vertical curved blades (2), wherein, the inner cores of the four vertical curved blades (2) are all metallic material support bodies (3), and outer layers are all flame-proof material layers. The utility model is characterized in that the front faces (2a) and the back faces (2b) of the vertical curved blades (2) are all inclines, and the inner lateral surfaces in helical shape are symmetrically fixed on the lower end of the joint lever (1). As the front faces and the back faces of the vertical curved blades are converted into the inclines, the propulsion stirrer head for hot metal desulphurization not only performs the function of rotating and stirring in the horizontal direction, but also has the convection effect up and down in the vertical direction as well as the vortex effect on the back sides of the vertical curved blades, so that the hot metal and the desulfurizer are stirred evenly, thus preventing the desulfurizer from floating upwards and gathering on the joint lever, enhancing the hot metal desulphurization effect and prolonging the service life of the stirrer head at the same time.

Description

Desulfurizing iron advances stirring-head

Technical field

The utility model relates to a kind of improvement of desulfurization agitator head for hot metal, and specifically a kind of desulfurizing iron that has stirring and propulsion functions simultaneously advances stirring-head.

Background technology

Molten iron stirring desulphurization method is a kind of desulfurizing iron method that adopts the mechanical stirring mode, extensively adopted by domestic Steel Plant, used key equipment is exactly a desulfurization agitator head for hot metal, relies on its fast rotational in the molten iron that dissolves, make sweetening agent and molten iron short mix, fully reaction.At present, the desulfurization agitator head for hot metal that uses, be made of union lever and symmetrically arranged four paddles, the inner of four paddles is fixed on the lower end of union lever symmetrically, becomes " ten " word shape, its inner core is metallic substance, skin is refractory masses, and paddle is a rectangular parallelepiped, and its front and back is vertical surface, its end face and bottom surface are horizontal plane, and its outer side is a vertical surface.During use, stirring-head inserts in the molten iron of iron ladle, in molten iron, squeeze into sweetening agent with compressor, molten iron is carried out desulfurization, squeeze into sweetening agent on one side, rotate on one side and stir, make molten iron and sweetening agent chemical combination, the existing weak point of the stirring-head of this structure is: in rotating whipping process, can only make molten iron horizontally rotate mixing, there is not upper and lower convection current mixing effect, so stir inhomogeneous, particularly lighter owing to sweetening agent, float easily, the gathering that bonds easily on union lever so reduced and molten iron blended chance, influences sweetening effectiveness.

Summary of the invention

The purpose of this utility model is to provide a kind of above the deficiencies in the prior art that overcome, making interior molten iron of iron ladle and sweetening agent not only have to horizontally rotate mixes, also having upper and lower convection current and eddy current mixes, to prevent that sweetening agent from assembling on union lever, the desulfurizing iron that can improve the desulfurizing iron effect advances stirring-head.

For reaching above purpose, the technical scheme that the utility model adopted is: this desulfurizing iron advances stirring-head, constitute by union lever, four paddles, the inner core of four paddles is the metallic substance supporter, skin is refractory masses, the front and back that it is characterized in that paddle is the inclined-plane, medial surface be spiral shape symmetrical be fixed on the lower end of union lever, make paddle medial surface center line and union lever axis that certain oblique angle be arranged, its end face and bottom surface are horizontal plane, and its outer side is a vertical surface.The utility model is also implemented by following measure: the oblique angle in described paddle front is the 10-15 degree, tilts to reverse direction from top to bottom, and the back side of paddle is with positive parallel.

The beneficial effects of the utility model are: compare with the desulfurization agitator head for hot metal of present use, owing to change the front and back of paddle into inclined-plane, in rotation process, make the rotation stirring action of the existing horizontal direction of stirring-head, the upper and lower convection action that vertical direction is arranged again, and in the eddy effect at the paddle back side, so molten iron and sweetening agent are stirred, prevent sweetening agent come-up and the gathering on union lever, improve the desulfurizing iron effect, can also prolong the work-ing life of stirring-head simultaneously.

Description of drawings

Fig. 1 looks synoptic diagram for the utility model structure master.

Fig. 2 is the utility model paddle elevational schematic view.

Fig. 3 analyses and observe enlarged diagram for the utility model along 2A-A.

Embodiment

Make the utility model with reference to accompanying drawing 1,2,3.This desulfurizing iron advances stirring-head, constitute by union lever 1, four paddles 2, the inner core of four paddles 2 is metallic substance supporter 3, skin is refractory masses 4, the positive 2a and the back side 2b that it is characterized in that paddle 2 are the inclined-plane, medial surface be spiral shape symmetrical be fixed on the lower end of union lever 1, its end face 2c and bottom surface 2d are horizontal plane, its outer side 2e is a vertical surface.The oblique angle B of described paddle 2 positive 2a is the 10-15 degree, tilts to reverse direction from top to bottom, and the back side 2b of paddle 2 is parallel with positive 2a.

Claims (2)

1. a desulfurizing iron advances stirring-head, constitute by union lever (1), four paddles (2), the inner core of four paddles (2) is metallic substance supporter (3), skin is refractory masses (4), the front (2a) and the back side (2b) that it is characterized in that paddle (2) are the inclined-plane, medial surface be spiral shape symmetrical be fixed on the lower end of union lever (1).

2. desulfurizing iron according to claim 1 advances stirring-head, it is characterized in that the oblique angle B of described paddle (2) positive (2a) is the 10-15 degree, tilts to reverse direction from top to bottom, and the back side (2b) of paddle (2) is parallel with positive (2a).

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