JPS5821534Y2 - Gutter device for molten fluid granulation equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a gutter device (hereinafter simply referred to as gutter device) for a granulation facility that produces granular objects from a molten fluid.

Granulation equipment that produces granular objects from molten fluid is used for slag, fertilizer, granulated pig iron, etc., but in order to explain the details of the invention, we will focus on field fracking equipment that produces granulated water from blast furnace slag. An example is described below.

To explain using FIG. 1 showing an embodiment of the present invention, this granulation equipment transports slag 1 generated in a blast furnace in a pot 2, passes it through a receiving pot 3, and sends it to a slag or chute (hereinafter referred to as a slag). )
4, and then introduced into a blown box 5 and granulated with jet water 6.

In this equipment, if the replenishment of molten slag to the saucer or supply container 3 is interrupted and the blowing operation is temporarily stopped, the molten slag remaining in the slag trough 4 will solidify and the next molten slag will be removed. Since this becomes a hindrance to the flow of the slag, it is necessary to wait for the solidified slag to cool down before carrying out the slag removal work.

On the other hand, regardless of this slag removal work, slag is generated in the blast furnace and transported, so the slag is removed as quickly as possible to reduce heat loss, and the next blowing process is carried out. It is hoped that this will be done.

However, since the conventional slag gutter 4 is fixedly installed at the position where it is used, it is difficult to remove the slag using work tools such as crowbars, etc. Therefore, care must be taken to prevent solidified slag from getting into the pump or the blown box 5, and the slag must be removed from the gutter.
The slag removal process was extremely time-consuming and could result in heat loss as the next molten slag cooled down.

The purpose of this invention is to eliminate the above-mentioned drawbacks.
To provide a gutter device that facilitates slag removal work and eliminates any suspension of blowing work due to waiting for slag removal from the slag gutter.

The present invention will be explained in detail below with reference to illustrative embodiments.

Figures 2 and 3 are views taken along the line A-A' in Figure 1, which is a conceptual side view of the granulation equipment of this embodiment;
The figure shows the slag gutter arrangement during the blowing operation of the gutter device of this embodiment, and FIG. 3 shows the slag gutter arrangement during the slag removal operation.

This embodiment is an example in which two slags are provided, and as shown in FIG. 2, the slags 4 and 4' are installed on a slag truck 7 by pin joints 8 and fixed supports 9, respectively.

The pin joint 8 is located on the blown box 5 side on the slag trolley γ,
The slag troughs 4, 4' are rotatably mounted.

On the other hand, the support stand 9 is located on the side opposite to the pin joint 8, that is, on the side of the saucer 3, and the slag troughs 4, 4' are maintained in a desired inclined posture depending on the level of engagement between the two.

The positioning of the slag gutter 4 used this time with respect to the catch basin 3, the blown box 5, and the slag gutter maintenance field described later can be obtained by stopping the slag gutter truck 7 at a predetermined position.

The slag trolley 7 is driven by a drive source 12 such as an air motor or an electric motor on a rail 11 laid on a pedestal 10 through a sprocket 13 and a chain 14 in a direction that intersects with the downward direction of the slag flow, preferably in a direction perpendicular to it. Reciprocating movement is possible.

A slag maintenance work area is provided at an appropriate position in the longitudinal direction of the pedestal 10 and in the lateral direction of the basin 2.

As shown in FIG. 4, a slag tilting machine 15 is disposed here.

The slag tilting machine 15 has a shaft 17 equipped with a roller 16 at the tip thereof and is supported slidably in the axial direction of the shaft 17, and can be moved up and down by an air cylinder or a power cylinder 18.

The highest raised position of the roller 15 of the slag tilting machine 15 is
The support stand 9 side of the slag trough 4 is raised to a position where a sufficient slope is obtained so that the slag in the slag trough 4 can easily slide down.

Further, in this slag gutter maintenance workshop, a work deck 19 is installed at a position where it is easy to break the solidified slag of the slag gutter 4 after tilting.

In FIG. 4, it is arranged on the side of the slag tilting machine 15, that is, on the side of the basin 3.

Furthermore, it is preferable to incline the slag trough 4 and install a hopper or packet 20 in advance in the direction of the trajectory along which the slag slides.

The pedestal 10 supports at least all the slags 4 on the slag trolley T,
4' must be long enough to allow the slag trolley 7 to move so that it can be stopped at the blowing work position and the slag maintenance work position.

Next, the action of the gutter device of this embodiment will be described below.
If there is no time to clear the slag from the slag during the next blowing operation 1, move the slag trolley 7 to the right in FIG. make it stop.

Then, the next blowing operation is carried out using the slag 4'.

Therefore, there is no need to wait for the next time to cool the slag and cause heat loss.

Next, when the blowing work is suspended and the time required to remove the slag from the used slag gutter 4 is obtained, the slag gutter truck 7 carrying the slag gutter 4 is moved to the slag gutter maintenance work area, as shown in Figure 3. The centers of the slag tilting machine 15 and the slag trough 4 are aligned and stopped as shown below.

Next, as shown in Fig. 4, the slag sluice tilting cylinder 18 is operated to tilt the slag sluice 4 around the pin joint 8, and the slag sluice 4 is
Change from posture to O posture.

In order to safely and quickly discharge the solidified slag, the inclination angle of the slag gutter is preferably 300 or more.

The sludge removal work is carried out by the operator 21 from the direction shown in FIG.

Next, Table 1 shows a comparison of the slag removal processing time of the slag gutter by the conventional device and the slag removal processing time of the slag gutter by the device of this embodiment in 10 blowing operations.

From this table, it can be seen that the average slag processing time in the apparatus of this embodiment is 1/2 of that of the conventional apparatus, and the processing time of the apparatus of this embodiment is shorter because the work is easier.

In the above embodiment, there are two slags, but the number can be two or more depending on operational conditions.

Further, in the embodiment, there is one slag trolley, but two or more can be provided.

For example, when two slag gutter trucks are loaded with two slag gutter trucks each, if each car carries four slag gutter trucks, four slag drains are processed between the blowing processing bodies. In contrast, it is only necessary to treat two units (the other two units can be treated for slag while the other two units are being blown).

Further, in the embodiment, the slag maintenance area was provided only on one side of the saucepan, but it can be provided on both sides.

Since the saucepan remains at a high temperature for a long time, it is preferable to set up a slag gutter maintenance area in a location far away from the saucepan where the influence of the saucepan's temperature is minimal. The slag maintenance area may be located closer to the saucepan.

As explained in the embodiments, the present invention provides a track and a drive mechanism for reciprocating a slag trolley in which a plurality of slag culverts are arranged in parallel in a direction intersecting the flowing direction of molten fluid. Since the slag is installed after one blowing process, if the slag in the slag has solidified, but there is no time to wait for the solidified slag to cool and remove it, and the next blowing process is scheduled. Another advantage is that the used slag trough can be moved and another slag trough can be brought to the receiving pot position, and blowing can be carried out without extra heat loss of the molten fluid.

In addition, by arranging the slag maintenance workshop in a direction that intersects the direction of flow of the molten fluid, the slag maintenance work area is not exposed to the high heat of the saucepan, and the slag removal work is easy to perform, and the solidified slag is not stored in blown boxes or Since the slag does not get into the pump, a crowbar or hammer can be used to sufficiently remove the slag, which has the effect of improving work efficiency.

Furthermore, one end of the slag gutter is pivoted with a pin joint so that it can be tilted in the longitudinal direction, and a slag gutter tilting machine is installed in the slag gutter maintenance workshop, so that the slag gutter can be tilted at the desired angle during slag removal work. Can be tilted.

This inclination prevents the assimilated slag crushed with a hammer or the like from scattering toward the worker, resulting in safer work.

Since the crushed and solidified slag flows down by gravity, there is the advantage that there is no need to pump out the crushed and solidified slag from the slag trough unlike in conventional devices.

According to the device of the present invention, the heat loss of the molten fluid can be reduced, contributing to shortening of the slag removal work time from the slag gutter and safety of the work.

[Brief explanation of drawings]

Fig. 1 is a conceptual diagram of the slag production equipment showing the vicinity of the slag gutter arrangement position according to the present invention, and Fig. 2 is a view taken along arrows A-A' in Fig. 1 during blowing work of the slag gutter equipment of the present invention. , FIG. 3 shows the state during the sludge disposal operation compared to FIG. 2. Figure 4 shows the third state of the slag removal operation using the device of the present invention.
Figure B-B' arrow view. 1... Slag, 2... Pot, 3... Pot (supply container)
, 4... Slag gutter or chute, 5... Blown box (granulation device), 6... Jet water, 7... Slag gutter truck, 8...
・Pin joint, 9... Support stand, 10... Slug gutter device mount, 11... Rail for tailing gutter truck, 12... Drive source, 1
3... Sprocket, 14... Chain, 15...
・Slag gutter tilting machine, 16... The receiver is a roller, 17... Shaft, 18... Slag gutter tilting cylinder, 19... Working deck, 20... Hopper or packet, 21...
·worker.

Claims (1)

[Scope of utility model registration request] Between the molten fluid supply container and the granulation device, a slag trolley is installed in parallel with a plurality of slag slugs, one end of which is pivotally supported by a pin joint so that it can tilt in the longitudinal direction of the slag slugs, in the direction of flow of the molten fluid. A gutter device for molten fluid granulation equipment, characterized in that a track and a drive mechanism are provided for reciprocating movement from a slag gutter use position toward a slag gutter maintenance workshop having a slag gutter tilting machine in a direction intersecting with the slag gutter.