JPS61217688A - Treater for molten slag - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a processing apparatus for processing molten slag produced from, for example, a blast furnace or a takuro.

BACKGROUND ART Conventionally, for example, when processing molten slag produced from a pine furnace, such as cooling and crushing, the molten slag is processed in the following manner. ! ! equipment was used.

■The molten slag is cooled by sprinkling water on it, and then crushed using, for example, a bulldozer.

■Pour the molten slag onto an iron plate and cool it rapidly.

■The molten slag is poured off, etc. At this time, the molten slag is cooled and crushed by blowing air on it.

Problems to be Solved by the Invention In the above-mentioned prior art (2), molten slag with poor thermal conductivity takes a long time even if it is cooled by drinking water. Also, if water is sprinkled continuously, there is a risk of a so-called steam explosion. Furthermore, when crushing with a bulldozer or the like, a large amount of dust is generated, a large amount of labor is required, and the working environment is also deteriorated.

In order for the molten slag to be sufficiently cooled in prior art (1), it is necessary to sufficiently spread the molten slag on the iron plate. On the other hand, depending on the basicity of the molten slag, its viscosity varies greatly. Therefore, in the case of molten slag with high viscosity, spreading by such self-maltenability does not spread sufficiently. In the case of spreading by self-maltenability, the thickness becomes 501 or more, which poses a problem that the cooling time is long.

Further, with such a structure for cooling operation, there was a problem in that it was difficult to recover heat from the molten puffer fish.

Prior art (2) has a problem in that if the viscosity of the molten slag is large, the molten slag becomes lumpy, and if it is small, it becomes fine powder.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a molten slag processing apparatus that can solve the above-mentioned problems and perform desired processing in a short period of time.

Means for Solving the Problems The present invention provides a means for mounting a molten slag having a mounting surface on which a molten puffer fish is mounted, and a pressing means that can approach and move away from the mounting surface of the mounting means. A molten slag processing apparatus characterized by comprising: a lifting means for raising and lowering the pressing means and causing the pressing means to press the molten slag on the mounting surface.

A preferred embodiment of the present invention is characterized in that at least one of the mounting means* and the pressing means is provided with a cooling means.

For production The molten slag is mounted on the mounting surface of the mounting means.

The molten puffer fish on the mounting surface is pressed by the pressing means lowered by the lifting means and spread on the mounting surface. Therefore, the thickness of the molten puffer fish is forcibly reduced, and therefore it can be easily processed such as cooling.

Embodiment FIG. 1 shows W! of an embodiment of the present invention. Melted soot slag treatment! [N
Fig. 1 is a simplified cross-sectional view of Fig. 1, and Fig. 2 is a processing device! 1, and FIG. 3 is a partial sectional view of the mounting means A. The configuration of the processing device 1 will be described with reference to FIG. gi and FIG. A mounting means A of the processing device 1 made of, for example, bonded steel or copper is fixed on the ground 3, for example. *Suppressing means B made of the same material as the mounting hand PiA is arranged opposite to the mounting means A. These mounting means A and one pressing means B are, for example, roughly plate-shaped.

Brackets 5°, 6, 7, and 8 are provided at predetermined positions on the surface of the pressing means B opposite to the mounting means A, respectively. Each of these brackets 5°6.7.8 has
Links 9, 10, 11.12 are pins 13.14.15
, 16, respectively.

The other end 9a of the link 9 is pin-coupled to a rod 18 of the hydraulic sill 17 by a pin 19.

Also, near the other end 9aga of the link 9, when the link 9 or the like is angularly displaced as described later, a portion 9b that becomes the center of the rotation pin is connected by a pin 20, so that it can be freely angularly displaced. Fixed. Further, a bracket 21 is provided on the head side of the hydraulic sill 17, and this bracket 21 is connected with a pin to a connecting piece 22 fixed to the ground 3, for example.

Also, the other ends 10a, 1 of the remaining links 10, 11, 12
1m and 12a are pin-coupled, links 9 and 10 and pressing means B form a parallelogram link, and link 1
1 and 12 form a parallelogram link with the pressing means B.

*The above-mentioned mounting means A and pressing means B are provided with cooling passages 24 and 25 to which a refrigerant such as cooling water is supplied in order to cool the molten slag 23 as described later. Such cooling passages 24, 25 may be constructed by embedding tubes in the mounting means A and the pressing means B, respectively, and when manufacturing the mounting means A and the pressing means B, Structure II1. @Redemo is good.

FIG. 4 shows the processing W explained with reference to FIGS. 1 and 2.
FIG. 3 is a simplified plan view of tr111. In FIG. 4, the suppressor PiB will be explained to simplify the explanation, but the mounting means A may have almost the same configuration as the suppressor PiB.
Along the opposite sides B, ii', Br of B, a header 26, 27 is arranged, respectively.

These headers 26 and 27 are provided with flexible cooling water supply pipes 28 and discharge pipes 29, respectively. Therefore, the pressing means B can be moved up and down while cooling the molten slag 23, as will be described later.

Cooling water supplied to the suppression means B to cool the molten slag is supplied to the header 26 via the supply pipe 28 and sent from the header 26 to the cooling passage 25. cooling passage 25
The cooling water, whose temperature has been raised while flowing through the cooling water, is discharged through the header 27 and the discharge pipe 29. The cooling water that has passed through the mounting means A is supplied to the pressing means B via the supply pipe 28.
The tubes supplying the cooling medium do not have to be visible since they are left stationary.

FIG. 5 is a block diagram showing the configuration of a heat recovery device 30 including the processing device 1 described with reference to FIG. Cooling water is supplied to the mounting means A of the processing apparatus 1 via a pump 31, and the heated cooling water is supplied to the pressing means B via a supply pipe 28. The cooling water whose temperature has been further raised in the pressing means B passes through the discharge pipe 29 to the heat exchanger 3.
The heat exchanger 33 is supplied with the power generation f
A supply pipe 36 and a discharge pipe 37 are connected to a turbine 35 that rotationally drives 1134.

In the heat exchanger 33, the amount of heat of the cooling water supplied via the discharge pipe 29 is given to a heat medium, such as water, supplied to the heat exchanger 33 via the discharge pipe 37. The water heated by the heat exchanger 33 turns into steam, which rotates the turbine 35 through the pipe 36 . This rotational drive causes the generator 34 to generate electricity. The amount of heat recovered in the processing device 1 in this manner can be effectively utilized.

The operation of the molten slag processing apparatus 1 having the above configuration will be explained with reference to FIG. #S1 and FIG. When the molten slag 23 is to be mounted on the mounting surface Aa of the mounting means A, the rod 18 of the hydraulic cylinder 17 is extended. At this time, the links 9゜10, 11, and 12 are connected to the arrow A with the ends 9b, 10m, 11a, and 12m as fulcrums, respectively.
Angular displacement in one direction. The pressing means B is therefore displaced to the position indicated by the imaginary line 38 in FIG. At this time, the molten slag transported in a pot by a crane or the like is dropped onto the mounting surface Aa of the mounting means A.

Next, the rod 18 of the hydraulic cylinder 17 is retracted. At this time, the links 9, 10, 11, and 12 are each angularly displaced in the direction of the arrow A2, which is opposite to the above case, and the pressing means B is moved between the pressing means B and the mounting means A, as shown by the solid line in Figure @1. The molten slag 23 is pressed and spread uniformly and thinly by the force of the pressing means B's own weight superimposed thereon.

At this time, as described above, since cooling water is supplied to the cooling passages 24 and 25 of the mounting means A and the pressing means B, the molten slag 23 is cooled.

As mentioned above, in this embodiment, the molten slag 23 is
It was forcibly pressed by the mounting means A and the pressing means B to spread it out. Therefore, it is important to prevent the processing state of the molten slag 23 from being influenced by the viscosity of the molten slag 23. Also, like this, molten slag 2
3 is forcibly pressed, the cooling time can be significantly shortened even when processing molten slag 23 with poor thermal conductivity.

In this embodiment, cooling water is circulated through the mounting means A and the pressing means B, and heat is recovered using the cooling water, so that heat recovery can be carried out advantageously.

゛As described above, the molten slag 23 that is forcibly cooled while being sandwiched between the loading means A and the pressing means B self-destructs due to this cooling, so as explained in the above embodiment, for example, a bulldozer, etc. Compared to the case of crushing with a machine, the generation of dust etc. can be significantly reduced. Further, since the molten slag 23 is not directly sprinkled with water, dangers such as steam explosion can be avoided.

Further, the radiant heat from the molten slag 23 is blocked by the mounting means A and the pressing means B, and heat dissipation to the surroundings is significantly reduced. Therefore, by reducing the height of the building containing the processing device 1, the building can be made smaller. Furthermore, the influence of radiant heat on the overhead lanes for moving pots and the like is also reduced, improving the work environment. In addition, since operations other than the operation of transferring the molten slag from the pan to the mounting surface 2a of the mounting means A can be carried out automatically, labor can be saved.

FIG. 6 is a sectional view showing the configuration of a processing apparatus 1a according to another embodiment of the present invention. This embodiment is similar to the embodiment described above, and corresponding parts are given the same reference numerals. The color point to be noted in this example is the molten slag 23 on the mounting surface Aa of the mounting means A.
This is because a bushing 40 is provided in the direction of arrow C. The button 40 includes, for example, a hydraulic cylinder 41, a rod 42, and a pusher piece 43. This hydraulic sill 41 is connected to a hydraulic sill 46.4 provided below the hydraulic sill 41 by a bracket 44.45.
7 rods 48, 49. Further, the cooled molten slag 23 removed from the loading means A by the busher 40 is transferred to the belt feeder 51 by the conveying means 50.
It is dropped and transported.

The operation of the processing device 1a having such a configuration will be explained. When the molten slag 23 is flowed down from a pot (not shown) or the like onto the mounting surface Aa of the mounting means A, the rod 1/48.49 is extended and the pusher 40 is held vertically upward. increase. The rod 42 of the butcher 40 is extended, and the pushing piece 43 slides near the surface of the molten slag 23 in the direction of the arrow C, so that the molten slag 23 is spread flat before being pressed by the pressing means B. Then, the bushing 40 is returned to its original state, and the molten slag 23 is pressed by the pressing means B as explained in the previous embodiment.

Next, after the pressing means B is displaced in the direction away from the mounting means A as shown in FIG.
The molten slag 23 on top a is pushed in the direction of the arrow C and is placed on the mounting surface. By providing the bushing 40 that operates in this manner, work efficiency can be significantly improved.

Further, in this embodiment, the pressing means B and the passenger Pi
Although the molten slag 23 is crushed between the molten slag 23 and the molten slag 23, a configuration may be provided in which the cooled molten slag 23 being conveyed by the conveyance means 50 is crushed. It is possible to obtain the same effects as those obtained in the embodiments described with reference to it, and it is also possible to improve work efficiency.

FIG. 7 is a sectional view of a portion of the suppressing means B included in yet another embodiment of the present invention. This embodiment is similar to the previously described embodiment, and corresponding parts are given the same reference numerals. One noteworthy point of this embodiment is that the pressing means B is constructed using a non-prene tube. At this time,
The ring line direction of the cooling passage 25 formed inside the membrane tube is parallel to arrow C in FIG.

By doing this, when the molten slag 23 is pressed by the pressing means B, the molten slag becomes 11[L easier. *When using the pressing means B made of a non-prene tube like an octopus, the shape of the pressing piece 43 of the bushing 40 (see figure $6) is made to correspond to the surface of the membrane tube. In this way, the molten slag 23 on the mounting surface Aa can be easily removed by the busher 40.

FIG. 8 is a sectional view of suppressing means B according to another embodiment of the present invention. The spirit of the present invention also includes a configuration in which a membrane tube having a configuration as shown in FIG. 8 is used instead of the configuration of the pressing means B described with reference to FIG. 7. At this time, a cooling passage 25 is formed inside the non-plain tube.

$9 Figure is a front view showing the configuration of a molten slag processing apparatus 1b according to still another embodiment of the present invention.0 This embodiment is similar to the previous embodiment, and corresponding parts are designated by the same reference numerals. The noteworthy point of this embodiment is that the suppressing means B is composed of two pressing means Bl and B2. These pressing means Bl.

B2 has basically the same configuration as the presser PiB in the embodiment described with reference to FIG. That is, the pressing means BI is provided with links 52, 53, etc., and the end of the link 52 on the opposite side from the pressing means B1 is connected with a rod 55 of the hydraulic sill 54 by a pin.

Further, the pressing means B2 is provided with links 56 and 57,
The end of the link 57 opposite to the pressing means B2 is pin-coupled to a rod 59 of a hydraulic sill 58. Therefore, by extending/retracting the rods 55, 59 of the hydraulic cylinders 54.58, the pressing means B1. B2 can be moved up and down relative to the loading means A in a so-called double-door shape.

That is, the pressing element HB1 can be displaced in the directions of arrows El and E2, and the pressing means B2 can be displaced in the directions of arrows Al.

It can be displaced in the A2 direction.

Even with such a processing device 1b, effects similar to those described in the above-mentioned embodiments can be obtained. Further, when pressing the molten slag 23 by displacing the pressing means B1 in the E2 direction and pressing the pressing means B2 in the direction of the arrow A2, the gas generated from the molten slag 23 is removed from the gap between the pressing means B1 and B2. be able to.

#S10 Figure shows a processing device 1c according to still another embodiment of the present invention.
This embodiment is similar to the previous embodiment, and corresponding parts are given the same reference numerals. A notable feature of this embodiment is that a plurality of suppressing means are provided as described below.

Pressing means Bal, Ba2, Ba3, -, Ban
(collectively referenced ff Ba) are respectively hydraulic shillings Fa1, Fe2, Fe2 --- Fan
(generally indicated by the reference sign Fa), it is moved up and down.

Each of these hydraulic shillings Fa is connected to a connecting member 6.
Commonly connected to 0m. The connecting member 60a is the wheel 61
m, 62m along the guide member 63 with the arrow rfG1.
It can be freely displaced and positioned in the G2 direction.

On the other hand, the pressing means Bbl, Bb2, Bb3,...
Bbn (generally indicated by the reference mark Bb) has a similar configuration. i.e. hydraulic shilling Phi, Fb2
, Fb3. . . , Fbn (generally indicated by the reference mark Fb) are provided. Each hydraulic shilling Fb has a connecting member 6
Commonly connected to 0b. The communication member 60b is the wheel 61
b.

62b along the guide member 63 with the arrow G f t”
It is freely displaced in the G2 direction. The guide member 63 is connected to the frame 6
It is fixed at 4.65.

FIG. 11 is an enlarged front view illustrating the configuration related to the connecting member 60a of FIG. 10, and FIG. 12 is a t! 411 is a sectional view seen from the section line -■ in FIG. 411.

The configuration of the processing device IC will be described in more detail with reference to FIG. 11 and #S12. The pressing means Ba1 is fixed to the arad Ral of the hydraulic sill Fat. A bracket Ha1 is formed on the hydraulic cylinder Fal, and is connected with a pin to a bracket Ial formed on the connecting member 60m. Further, the connecting member 60a has wheels 61m and 62.
a and connecting pieces 66a and 67m.

FIG. 13 is a simplified front view illustrating the operation of the treatment S device 1c of FIG. 10. The operation of the processing device 1c will be described with reference to FIGS. 10 to 13.

The molten slag 23 is transported by the pan 71 suspended by the crane equipment fi70, and the molten slag 23 is transported to the ice loading surface A of the loading means A.
It is mounted on a. At this time, the connecting members 60a and 60b are respectively displaced in the directions of arrows G1 and G2 in FIG. 10, so that the molten slag 23 easily flows down from the pot 71 onto the mounting surface Aa.

Next, the connecting member 60m is displaced in the direction of arrow G2, and the connecting member 60b is displaced in the direction of arrow G1. In this way, the connecting members 60a and 60b are connected to the pressing means B, for example, near the center of the swell of zero-order molten slag 23 that is close to each other.
al, Bbl press the molten slag 23, and this pressing means Ba1. Pressing means t3a and Bb in the direction away from Bbl sequentially descend vertically downward to press the molten slag 23.

In this way, the molten slag 23 can be flattened on the mounting surface Aa as shown in FIG. 13(3).

Even with such a processing device IC, effects similar to those described in the above-mentioned embodiments can be obtained.

In the above-described embodiment, the pressing means B, Ba, and Bb are displaced by hydraulic sills, but the present invention is not limited to hydraulic sills, and can be implemented.

Furthermore, although this embodiment has been described in relation to the molten slag 23 from a converter, the present invention can be applied to a wide range of molten slags, such as molten puffer puffer from a blast furnace.

Further, in the above embodiment, cooling water was used as the refrigerant for cooling the molten slag 23, but the present invention is not limited to water, and various refrigerants may be used as the refrigerant.

Effects As described above, according to the present invention, the suppressing means, which can approach and move away from the mounting surface of the zero-order mounting means, which loads the molten slag on the mounting surface of the mounting means, is connected to the lifting means. The molten slag was displaced in a direction intersecting the mounting surface and pressed against the molten slag. Therefore, since the molten slag is forcibly spread flat, the treatment of the molten slag can be completed without being affected by the viscosity of the molten slag.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a processing device 1 for molten slag 23 according to an embodiment of the present invention, FIG. 2 is a perspective view of the processing device t, and FIG. 3 is a sectional view of a portion of the mounting means A of the processing device 1 , Figure 4 shows the processing equipment r! 11 simplified plan view, @5 figure is processing equipment W11
Block diagram of the heat recovery device 30 including
The figure is a cross-sectional view of a processing apparatus 1a according to another embodiment of the present invention.
The figure is a sectional view of a part of the pressing means B of still another embodiment of the present invention, FIG. 8 is a sectional view of a part of the pressing means B of still another embodiment of the invention, and FIG. The front view of the processing device jllllb of another embodiment, figure 10, is a front view of the processing device jllllb of another embodiment of the present invention. 11 is a front view showing the configuration related to the connecting member 60a of the processing device 1c, FIG. 12 is a sectional view taken from the section line π-■ in FIG. 11, and FIG. 13 is a front view of the S station 1c. is a simplified front view illustrating the operation of the processing device [1c]. 1 = 1 a, 1 b* 1 e = processing device,
9,10,11゜12... Link, 17-... Hydraulic sill, 18... Rod, A... Mounting means, A&...
...Passing surface, B...Pressing means agent Patent attorney Saikyo Keiichi Part 3 TG Fig. 7 Fig. 8 BPP pressure means Fig. 9 ■ Fig. 12

Claims (2)

[Claims] (1) A means for mounting molten slag having a mounting surface on which the molten slag is mounted, a pressing means that can approach and move away from the mounting surface of the mounting means, and raising and lowering the pressing means, 1. A molten slag processing apparatus, comprising: elevating means for pressing molten slag on a mounting surface by means of a pressing means. (2) The molten slag processing apparatus according to claim 1, wherein at least one of the mounting means and the pressing means is provided with a cooling means.