JPH0220187Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a water pulverization manufacturing device equipped with a slag shell crushing device.

When making granulated water by spraying water on the slag generated in a blast furnace, etc., it is important to improve the contact between the slag and the blowing water (sprayed water) in order to improve the quality of the granulated water, and also to improve the water ratio. It is also important to reduce costs by reducing the ratio of ``blown water/slag (weight ratio of slag to blown water)''.

As one method, as shown in FIGS. 1 and 2, the upper end of the slag falling port 3 at the end of the slag gutter 2 facing into the fracking gutter 1 is placed at right angles to the downward direction x of the slag flow. A slag widening plate 5 is provided which is pivotally supported on the beam 4 of the slag gutter 2 and is rotatable so that its lower end is separated from the bottom edge 3' of the slag falling port 3. A water spray nozzle 6 is provided below the spout 3, and the slag flowing down the slag gutter 2 collides with the width expanding plate 5, thereby widening the width of the flow by thinning the flow layer. This method has been used to bring the slag into contact with blown water, which has been effective to some extent, but a shell is formed on the surface of the slag.
This shell usually develops from both sides of the slag trough 2 (for example, see reference numeral 7 in FIG. 1) and gradually develops to the center. The shell formed in this way not only becomes a hindrance to expanding the width of the slag, but also
As the above-mentioned shell progresses, in the worst case, slag overflows from both sides of the widening plate 5, and the side wall 1' of the fracking gutter 1.
In such a case, rotate the width expanding plate 5 as shown by the dotted line in FIG.
Separate the lower end of the width expanding plate 5 from the bottom edge 3' of the slag gutter 2,
Although it is possible to eliminate the above-mentioned flow toward the side wall 1' by enlarging the gap, not only is the shell not removed, but there is also the problem that the width expanding plate 5 cannot be closed. Was.
This device is equipped with a slag shell crushing device that can easily destroy the shells using mechanical force and spread the slag smoothly when shells occur as described above. Its purpose is to provide a water granulation manufacturing device.

To explain the configuration in detail based on one embodiment shown in the drawings, as shown in FIGS. 1 and 2, at the slag fall port 3 at the end of the slag gutter 2 facing into the fracking gutter 1,
The upper end is perpendicular to the downward direction x of the slag flow, and the upper end is pivotally supported on a part of the slag gutter 1, for example, the beam 4, and the lower end is freely rotatable so as to be away from the bottom edge 3' of the slag fall port 3. In a water granulation manufacturing apparatus having a slag width expanding plate 5 and a water spray nozzle 6 below the slag falling port 3, the slag falls on both sides of the slag falling port 3, as shown in FIG. 9, each with a breaker 8 at one end.
are respectively pivotally supported on the outside of the side wall 1' of the fracking trough by brackets 1'', and the other ends of the rams 9 are connected to the piston rod 11 of a fluid drive cylinder 10 provided on the outside. The breaker 8 can be rotated and lowered from above the granulation gutter 1 to each corner 12, 12 of the slag fall port 3. Note that 13 in FIG. 1 is a heat shield plate of the fracking gutter 1, and 14 is a bracket for attaching the fluid drive cylinder 10 to the outside of the side wall 1' of the fracking gutter 1.

Since this embodiment has the configuration as described above,
The slag flows down the slag trough 2, hits the slag width expanding plate 5, spreads to the full width of the slag trough 2, and enters the slag fall port 3.
The slag falls to a thickness corresponding to the gap between the bottom edge 3' and the slag widening plate 5, and is crushed and cooled by the water sprayed from the water spray nozzle 6, turning into slag and slag. It falls into gutter 1, but during that time, the slag gutter 2
Observe the formation of shells at the corners on both sides of the slag fall port 3 using, for example, a television camera, and operate the fluid-driven cylinder 10 before the shells grow too large. When 9 is rotated, the breaker 8 will fall and the corner 1 of the slag falling port 3 will fall.
2, so when the breaker 8 is activated, the shells 7, 7 formed at the corner 12 are destroyed and flowed down into the fracking gutter 1. The molten slag does not overflow from the slag gutter 2, and the slag always forms a thin layer with the width of the slag falling port and is sprayed with blowing water.

In this embodiment, the fluid-driven cylinder 10 is used to rotate the other end of the lever 9 equipped with the breaker 8, but the mechanism is not limited to this. May be used. The above-mentioned fluid-driven cylinder 10 and the connecting rod device moved by the electric motor will be referred to as a rotary drive device for the lever 9.

Since this device has the above-mentioned configuration and function, it is possible to always produce high-quality granulated water and reduce the water ratio in a granulated water manufacturing device that is equipped with a slag width expansion plate at the slag fall port of the slag gutter. can be produced economically.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the main parts of the water granulation production device according to this invention, Fig. 2 is a longitudinal sectional front view taken along the - line in Fig. 1, and Fig. 3 is a slag shell crushing apparatus according to this invention. FIG. 1 shows a side view taken along the line - in FIG. 1 of an embodiment of a granulation manufacturing apparatus equipped with a granulation system, in which 1 is a granulation gutter, 1' is a side wall, 2 is a slag gutter, and 3 is a slag gutter. Falling port, 3' is the bottom edge, 5 is the slag widening plate, 6
is a water spray nozzle, 8 is a breaker, 9 is a ram,
10 indicates fluid-driven cylinders, respectively.

Claims (1)

[Scope of utility model registration request] At the slag fall port 3 at the end of the slag trough 2 facing into the slag trough 1, the upper end is pivoted to a part of the slag 1, perpendicular to the downward direction x of the slag flow, and the lower end is supported by the slag A water granulation manufacturing device having a slag width expanding plate 5 which is rotatable away from the bottom edge 3' of the gutter drop opening 3, and a water spray nozzle 6 below the slag lower opening 3. In this step, ramrods 9 provided on both sides of the slag drop port 3 and each equipped with a breaker 8 at one end are pivotally supported on the outside of the side wall 1' of the fracking trough 1, and the ramrods 9 and other The end can be driven by a rotation drive device of the ram 9 provided on the outside, and the breaker 8 is rotatably lowered from above the fracking gutter 1 to each corner 12 of the slag drop port 3. A slag production apparatus having a slag shell crushing device, characterized in that the slag husks generated in front of the width expanding plate 5 can be crushed.