KR20140045000A - A convert slag powder classfication apparatus - Google Patents

Abstract

The present invention relates to a particle assorting device of a steel slag, comprising: a first screen in a rotating cylindrical net form having a predetermined mesh; a second screen in a net form formed to be cylindrically rotatable, including a mesh relatively smaller than the first screen for the first screen to be located inside the second screen; a first inlet for inserting the steel slag toward one side of the first screen; a first outlet arranged on a lower side of the second screen for storing the steel slag passed through the mesh of the second screen; and a second outlet guiding the steel slag toward the other side of the second screen.

Description

Grain separator for steelmaking slag {A Convert Slag Powder Classfication Apparatus}

TECHNICAL FIELD The present invention relates to an apparatus for sorting steel slag, and more particularly, to a steel-making slag particle sorting apparatus for sorting steel slag by size and separating usable particles and usable particles.

In the past, iron and steel irregularities of more than 80mm in diameter, which have been recovered in steel recovery process of steelmaking slag, have been used as steel scrap in steelmaking process together with scrap. Sintering is used as a sintering source for low value added sintering ore.

In recent years, some methods have been developed for the utilization of high added value of iron powders prepared by magnetic separator during iron recovery process of steelmaking slag. However, these methods have been used for the purpose of selecting iron powders by grain sorting, crushing and sorting The purpose of this research is to utilize briquetted husk hatched through the process as a substitute for scrap iron or scrap metal such as steelmaking process.

In order to utilize steel as a substitute for scrap iron or scrap iron in the steelmaking process, the higher the content of iron in the train, the better. This is because the ingredients other than iron are injected into the electric furnace and melted and generated as slag, This is because the thermal conductivity is lowered and the consumption of dissolution time and electric power is increased, resulting in an increase in production cost.

However, the conventional method for separating particles has the following problems.

Especially, less than 0.3mm, which is low in the amount of trains in the trains, has a bad effect on the productivity, which is a problem because there is no way to separate it.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide an apparatus for sorting steel slag which easily separates fine particles of 0.3 mm or less.

Another object of the present invention is to provide an apparatus for sorting steel slag, which can separate fractions of particles of various sizes.

In order to accomplish the above object, the present invention provides a particle sorting apparatus for a steelmaking slag, comprising: a cylindrical first rotating screen having a mesh shape; a first screen having a relatively small mesh relative to the first screen, A second screen having a mesh shape formed so as to be rotatable in a cylindrical shape so that one screen is provided inside the first screen, a first inlet through which the steelmaking slag is introduced into one side of the first screen, A first outlet for receiving a steelmaking slag passing through the mesh of the second screen and a second outlet for guiding the steelmaking slag to the other side of the second screen.

Another embodiment of the apparatus for fractionating steel slag according to the present invention comprises a cylindrical first rotating screen having a mesh and a mesh having a relatively small mesh relative to the first screen, A first screen having a mesh-shaped second screen rotatably formed therein so as to be rotatable in a cylindrical shape, a first inlet through which steel-making slag is introduced into one side of the first screen, and a second inlet provided below the second screen, A first discharge port for receiving a steelmaking slag passing through the mesh of the first screen and a second discharge port extending toward the other side of the first discharge port with respect to the second screen and formed relatively larger than the mesh of the first screen, And a third screen provided below the third screen to receive a steelmaking slag passing through the mesh of the third screen The can comprise a fourth outlet that steel slag guide side to the other of said third screen and an outlet 3,.

And the mesh of the first screen is 4 to 6 mm.

And the mesh of the second screen is 0.3 mm.

The first screen may be manufactured by punching fine holes in a cylindrical iron plate.

The present invention has the following effects in the apparatus for fractionating steel slag.

By installing a screen with a large mesh inside and a screen with a small mesh outside thereof, it is possible to prevent large particles from coming into contact with the screen of a fine mesh, which is easily damaged, thereby increasing durability.

Each of the screens is continuously formed in a cylindrical shape so that the steelmaking slag can continuously separate the particles, and the production is continuously performed, thereby increasing the production amount.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a preferred embodiment of an apparatus for separating a steel making slag according to the present invention. FIG.
2 is a view showing another example of a preferred embodiment of the apparatus for fractionating steel slag according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in Fig. 1, the apparatus for fractionating steel slag according to the present invention comprises a first screen 10 of a cylindrical rotating net structure having a certain mesh, A second screen 20 having a small mesh and formed so as to be rotatable in a cylindrical shape such that the first screen 10 is provided therein, A first discharge port 30 provided below the second screen 20 to receive a steelmaking slag passing through the mesh of the second screen 20 and a second discharge port 40 provided below the second screen 20, And a second discharge port (50) through which the steelmaking slag is guided to the other side of the screen (20).

First, a body part 2 is provided in a particle sorting apparatus for steelmaking slag according to the present invention. The body part 2 constitutes the body of the steel-making slag particle sorting apparatus of the present invention and serves to provide a space in which various devices to be described below are installed.

A first screen 10 is provided inside the body 2. As shown in FIG. 1, the first screen 10 is formed in a cylindrical shape, and the upper and lower surfaces are opened.

The first screen 10 guides the steelmaking slag to the other side of the first screen 10 by allowing the steelmaking slag to flow into one side of the first screen 10.

The first screen 10 may have a mesh structure. This is because as the steelmaking slag moves along the first screen 10, the steelmaking slag, which is relatively smaller than the mesh of the first screen 10, passes through the first screen 10, And particles relatively larger than the mesh structure of the first screen 10 are moved to the other side along the first screen 10.

The mesh of the first screen 10 may be formed in a cylindrical shape by perforation. This makes it possible to firmly manufacture the first screen 10 so that the steelmaking slag flowing into the first screen 10 is irregularly formed and the first screen 10 is contacted with particles having irregular weights This is to prevent the first screen 10 from being damaged.

More specifically, the first screen 10 can be firmly formed by increasing the thickness of the cylindrical structure of the first screen 10 and forming the mesh structure by punching the cylindrical structure. The size of the mesh of the first screen 10 may be configured to a length of 4 to 6mm. Here, it is difficult to make the punching method to 4 mm or less by the punching method described above.

A second screen 20 is provided outside the first screen 10. As shown in FIG. 1, the second screen 20 has a network structure in which the first screen 10 is internally provided, and is rotatable in a cylindrical shape from the outside.

The size of the mesh of the second screen 20 may be smaller than the mesh of the first screen 10. This is to filter out smaller size particles among the steelmaking slag.

The mesh of the second screen 20 may be formed as a mesh structure of thin wires. This is to form a fine mesh structure for forming a screen for filtering fine particles of 0.3 mm or less. It is impossible to fabricate a minute structure by the punching method as in the first screen 10 described above.

The reason why the mesh structure of the second screen 20 can be fabricated with a net structure of thin wires is that the size and weight of the steel making slag passes through the first screen 10, Is filtered to such an extent that it can be accommodated. The mesh of the second screen 20 may be 0.3 mm.

In addition, a first inlet 30 is provided at one side of the first screen 10. The first inlet 30 serves to guide the steelmaking slag into the first screen 10.

A first outlet (40) is provided below the second screen (20). The first outlet (40) serves to guide the steel making slag passing through the mesh of the second screen (20) to the outside.

A second outlet (50) is provided on the other side of the second screen (20). The second outlet (50) serves to guide the steel making slag filtered by the first screen (10) and the second screen (20) to the outside.

Next, the structure of another embodiment of the particle sorting apparatus for steelmaking slag according to the present invention will be described with reference to Fig.

As shown in FIG. 2, the apparatus for sorting steel slag according to the present invention comprises a first screen 10 of a cylindrical rotating net-like structure having a predetermined mesh, A second screen 20 having a small mesh and formed so as to be rotatable in a cylindrical shape such that the first screen 10 is provided therein, A first discharge port 30 provided below the second screen 20 to receive a steelmaking slag passing through the mesh of the second screen 20 and a second discharge port 40 provided below the second screen 20, A third screen of a network structure extending to the other side of the first input port 30 with respect to the screen 20 and formed relatively larger than the mesh of the first screen 10 and rotatably formed in a cylindrical shape, 60), a second screen (60) provided below the third screen A third outlet 70 for receiving steelmaking slag passing through the mesh of the third screen 60 and a fourth outlet 80 for guiding the steelmaking slag to the other side of the third screen 60 .

First, a body part 2 is provided in a particle sorting apparatus for steelmaking slag according to the present invention. The body part constitutes the body of the particle sorting apparatus of the steelmaking slag of the present invention and serves to provide a space in which various devices to be described below are installed.

A first screen 10 is provided inside the body part 2. [ As shown in FIG. 2, the first screen 10 is formed in a cylindrical shape, and the upper and lower surfaces are opened.

The first screen 10 guides the steelmaking slag to the other side of the first screen 10 by allowing the steelmaking slag to flow into one side of the first screen 10.

The first screen 10 may have a mesh structure. This is because as the steelmaking slag moves along the first screen 10, the steelmaking slag, which is relatively smaller than the mesh of the first screen 10, passes through the first screen 10, And particles relatively larger than the mesh structure of the first screen 10 are moved to the other side along the first screen 10.

The mesh of the first screen 10 may be formed in a cylindrical shape by perforation. This is because the steelmaking slag flowing into the first screen 10 has an irregular shape and particles with irregular weights that cause damage to the first screen 10 when they come into contact with the first screen 10 .

More specifically, the first screen 10 can be firmly formed by increasing the thickness of the cylindrical structure of the first screen 10 and forming the mesh structure by punching the cylindrical structure. The size of the mesh of the first screen 10 may be configured to a length of 4 to 6mm. Here, it is difficult to make the punching method to 4 mm or less by the punching method described above.

A second screen 20 is provided outside the first screen 10. As shown in FIG. 2, the second screen 20 has a network structure in which the first screen 10 is internally provided, and is rotatable in a cylindrical shape from the outside.

The size of the mesh of the second screen 20 may be smaller than the mesh of the first screen 10. This is to filter out smaller size particles among the steelmaking slag.

The mesh of the second screen 20 may be formed as a mesh structure of thin wires. This is to form a fine mesh structure for forming a screen for filtering fine particles of 0.3 mm or less. It is impossible to fabricate a minute structure by the punching method as in the first screen 10 described above.

The reason why the mesh structure of the second screen 20 can be fabricated with a net structure of thin wires is that the size and weight of the steel making slag passes through the first screen 10, Is filtered to such an extent that it can be accommodated. The mesh of the second screen 20 may be 0.3 mm.

In addition, a first inlet 30 is provided at one side of the first screen 10. The first inlet 30 serves to guide the steelmaking slag into the first screen 10.

A first outlet (40) is provided below the second screen (20). The first outlet (40) serves to guide the steel making slag passing through the mesh of the second screen (20) to the outside.

A third screen 60 is provided on one side of the second screen 20. The third screen 60 is formed to extend to the other side of the first inlet 30 with respect to the second screen 20, as shown in FIG.

The third screen (60) is formed such that the first screen (10) is relatively larger than the mesh, and is rotatable in a cylindrical shape.

A third outlet (70) is provided below the third screen (60). The third outlet (70) serves to receive steelmaking slag passing through the mesh of the third screen (60).

A fourth outlet (80) is provided on the other side of the third screen (60). The fourth outlet (80) serves to guide the steel making slag filtered by the third screen (60) to the outside.

Hereinafter, the operation of the apparatus for fractionating steel slag according to the present invention having the above-described structure will be described in detail.

First, the operation of the particle sorting apparatus for steelmaking slag according to FIG. 1 will be described.

When the steelmaking slag is introduced into the particle sorting apparatus through the first inlet 30, the particles smaller than the mesh of the first screen 10 by the first screen 10 move to the second screen 20, Particles larger than the mesh of the first screen 10 are discharged through the second outlet 40 and used for manufacturing the product.

Particles smaller than the mesh of the second screen 20 among the particles moved to the second screen 20 are discharged and discarded through the first outlet 40, and the mesh of the second screen 20 is disposed. More relatively large particles are discharged through the second outlet 50 and used for manufacturing the product.

Next, the operation of the particle sorting apparatus for steelmaking slag according to Fig. 2 will be described.

When the steelmaking slag is introduced into the particle sorting apparatus through the first inlet 30, the particles smaller than the mesh of the first screen 10 by the first screen 10 move to the second screen 20, Particles larger than the mesh of the first screen 10 move to the third screen 60.

Particles smaller than the mesh of the second screen 20 among the particles moved to the second screen 20 are discharged through the first outlet 40 and discarded. The mesh of the second screen 20 The relatively larger particles move to the third screen 60.

Particles smaller than the mesh of the third screen 60 among the particles moved to the third screen 60 are discharged to the outside through the third outlet 70 and used for manufacturing the product.

The particles larger than the mesh of the third screen 60 among the particles moved to the third screen 60 are discharged to the outside through the fourth outlet 80 and used for manufacturing the product.

It is to be understood that the invention is not limited to the disclosed embodiment, but is capable of many modifications and variations within the scope of the appended claims. It is self-evident.

2: body part 10: first screen
20: second screen 30: first inlet
40: first outlet 50: second outlet
60: third screen 70: third outlet
80: Fourth outlet

Claims (5)

A first screen of a cylindrical rotating netlike shape having a constant mesh;
A mesh-shaped second screen formed to be relatively small in mesh with respect to the first screen and rotatable in a cylindrical shape so that the first screen is provided therein;
A first inlet through which the steelmaking slag is introduced into one side of the first screen;
A first outlet provided below the second screen for receiving a steelmaking slag passing through the mesh of the second screen; And,
And a second discharge port through which the steel slag is guided to the other side of the second screen. A first screen of a cylindrical rotating netlike shape having a constant mesh;
A mesh-shaped second screen formed to be relatively small in mesh with respect to the first screen and rotatable in a cylindrical shape so that the first screen is provided therein;
A first inlet through which the steelmaking slag is introduced into one side of the first screen;
A first outlet provided below the second screen for receiving a steelmaking slag passing through the mesh of the second screen;
A third screen of a mesh-like shape extending toward the other side of the first input port with respect to the second screen and formed to be relatively larger than the mesh of the first screen and rotatably formed in a cylindrical shape;
A third outlet provided below the third screen for receiving a steelmaking slag passing through the mesh of the third screen; And,
And a fourth outlet through which the steel slag is guided to the other side of the third screen. 3. The method according to claim 1 or 2,
Wherein the mesh of the first screen is 4 to 6 mm. 3. The method according to claim 1 or 2,
And the mesh of the second screen is 0.3 mm. 3. The method according to claim 1 or 2,
The first screen is a particle sorting device of the de-glazing slag, characterized in that manufactured by drilling a fine through hole in the iron plate of the cylinder.

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