KR101355718B1 - Apparatus for measuring an permeability of combination material - Google Patents

Abstract

The present invention relates to a device for measuring the breathability of the blended raw material, the breathable measuring device of the blended raw material according to the present invention, a storage chamber in which a storage container for storing the blended raw material is installed; and connected to the storage room, the compressed air is A first line having a first chamber to be stored and a first opening / closing valve configured to selectively open / close the air stored in the first chamber to be selectively introduced into the storage chamber; and discharged from the first chamber in connection with the storage chamber. And a second line having a second opening / closing valve which opens and closes the air to be selectively opened and closed so that air is selectively introduced therein. According to the present invention as described above, there is an advantage that it is possible to predict the breathability according to the characteristics and operating conditions of the blended raw material at low cost in a short time.

Description

Air permeability measuring device for blended raw materials for sintered ore {APPARATUS FOR MEASURING AN PERMEABILITY OF COMBINATION MATERIAL}

The present invention relates to a device for measuring the air permeability of a blended raw material for sintered ore, and more particularly, to a device for measuring the air permeability of a blended raw material for sintered ore which can predict the air permeability according to the characteristics of the blended raw material at low cost in a short time.

Generally, blast furnace is a facility that repeatedly charges cokes and iron ore, fuel, and blows hot air through a tuyere to melt iron ore to produce charcoal. Iron ore is charged into the blast furnace by crushing and screening to select only the appropriate size. In the blast furnace, not only the above-mentioned iron ores but also sintered ores that are minified in minute iron ores are also used.

Related prior art is Korean Patent Publication No. 10-2002-0029965 (name of the invention: sintered trolley with improved breathability).

It is an object of the present invention to provide an air permeability measuring device for blended raw materials for sintered ore which can predict the air permeability according to the characteristics of the blended raw materials at low cost in a short time.

Still another object of the present invention is to provide an apparatus for measuring air permeability of blended raw materials for sintered ores, which can predict the productivity and quality of the sintered ore based on the measured air permeability of the blended raw materials.

Apparatus for measuring the breathability of the blended raw material for sintered ore according to the present invention for achieving the above object, the storage compartment is installed inside the storage container for storing the compounding material; and the agent is connected to the storage room, the compressed air is stored A first line having a first chamber and a first opening / closing valve configured to selectively open and close the air stored in the first chamber to be introduced into the interior of the storage chamber; and the air discharged from the first chamber connected to the storage chamber. A second line is introduced, the second line is provided with a second opening and closing valve for opening and closing the air selectively.

The apparatus may further include a pressure measuring unit configured to measure a pressure change in the first line and a pressure change in the second line.

In addition, the display unit for displaying the value measured by the pressure measuring unit; characterized in that it further comprises.

The apparatus may further include a third open / close valve installed in the first line, and a compressor for providing compressed air of the first chamber when the third open / close valve is opened.

In addition, a fourth opening and closing valve installed in the second line; and a rotary pump for vacuuming the inside of the second chamber when the fourth opening and closing valve is opened; and a filter installed in the second line; Characterized in that it is included.

In addition, when the air rises to a predetermined pressure in the first chamber, the third opening / closing valve is closed, and when the air inside the second chamber is lowered to the predetermined pressure, the fourth opening / closing valve is closed, and the first chamber is compressed. And a control unit for simultaneously opening the first opening / closing valve and the second opening / closing valve in a stored air condition.

In addition, the storage compartment, the lower body for supporting the storage container, the upper portion is opened, the upper surface is formed with a height adjustment groove; and is coupled to the upper portion of the lower body to seal the storage container, the lower surface of the lower body The upper body is in contact with the upper surface, the upper body is provided with a height adjusting projection is engaged with the height adjustment groove is raised and lowered.

According to the present invention as described above, there is an advantage that it is possible to predict the breathability according to the characteristics and operating conditions of the blended raw material at low cost in a short time.

In addition, there is an advantage that can predict the productivity and quality of the sintered ore based on the measured air permeability of the blended raw materials.

1 is a conceptual view showing a state in which air is provided to the first chamber of the air permeability measuring device for the blended raw material for sintered ore according to an embodiment of the present invention.
FIG. 2 is a conceptual view illustrating air passing through a storage chamber of a breathable measuring device of a blended raw material for sintered ore according to a preferred embodiment of the present invention and flowing into the second chamber.
3 to 4 is a conceptual view showing a state in which the height of the storage chamber of the air permeability measuring device of the blended raw material for sintered ore according to an embodiment of the present invention is adjusted.
Figure 5 is an expected graph of the measured value measured by the air permeability measuring apparatus of the raw material for sintered ore according to the preferred embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The same reference numerals shown in the drawings denote the same members. In describing the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as to avoid obscuring the subject matter of the present invention.

1 to 2 is a conceptual diagram showing the operating state of the air permeability measuring apparatus for the raw material for sintered ore according to a preferred embodiment of the present invention. 1 to 2, the breathable measuring device of the blended raw material for sintered ore according to the preferred embodiment of the present invention includes a storage chamber 100, the first line 200 and the second line (300).

The storage room 100 is a sealed space in which the storage container 10 is stored, and the raw material for sintered ore is stored in the storage container 10, and the compounding material is generally finely divided iron ore, limestone, silica sand, serpentine and quicklime. It is prepared by mixing a raw material such as powdered coke or anthracite and fuel in a state having a certain ratio of water. The blended raw material prepared as described above is ignited through a high temperature ignition furnace to sinter the raw materials of the fine powder by the heat of combustion generated by burning the powdered coke or anthracite in the blended raw material.

Although not shown, the sintering step is charged with the sintered assembly in the sintered trolley of the sintering machine, and then the sintered trolley is passed through an ignition furnace to ignite the sintered assembly exposed to the upper surface of the sintered trolley, and the ignition process Thereafter, the sintered trolley is moved along a path, and a sintered ore is manufactured by sintering the sintered assembly while drawing air into a blower disposed under the sintered trolley.

The storage room 100 as described above is preferably adjusted in height according to the height of the storage container 10 is stored therein, as shown in Figures 3 to 4, the storage room 100 is the lower body 110 and The upper body 120 is composed of.

The lower body 110 is manufactured in a box shape having an upper opening in a state in which a storage container 10 is inserted and supported therein, and a height adjusting groove 111 is formed along an upper surface thereof.

In addition, the upper body 120 is coupled to the lower body 110 while moving up and down through a separate lifting means not shown, such an upper body 120 is produced in a shape in which the lower body 110 is inverted. But, the lower surface is provided with a height adjustment protrusion 121 to be fitted to the height adjustment groove (111).

It is preferable that the height adjustment protrusion 121 and the height adjustment groove 111 is coupled to each other, and the coupling portion may be sealed by rubber packing or O-ring.

As shown in FIGS. 1 and 2, the first line 200 includes a first open / close valve V1, a third open / close valve V3, a first chamber 210, and a compressor 220. As one side, one side of the first line 200 is preferably connected to the upper portion of the storage compartment 100 and the other side thereof is connected to the compressor 220.

Since the first opening and closing valve V1 and the third opening and closing valve V3 are opened and closed by the controller 400 to be described later, a detailed description thereof will be described later.

The first chamber 210 is a member installed in the first line 200, the compressed air is stored in the interior of the first chamber 210, the compressed air is provided by the compressor 220.

When air is provided in a state where one side of the first line 200 is connected to the upper portion of the storage chamber 100 as described above, the air is moved to a second line 300 to be described later connected to the lower portion of the storage chamber 100. Accordingly, the storage chamber 100 is implemented in the same virtual space as in the sintering process, the movement of air is to be moved by the differential pressure.

Here, the air moved inside the storage chamber 100 passes through the compounding material stored in the storage container (10).

As shown in FIGS. 1 and 2, the second line 300 includes a second open / close valve V2, a fourth open / close valve V4, a second chamber 310, a filter 330, and a rotary pump ( 320 is included, and the second line 300 is connected to a lower portion of the storage room 100.

Since the second open / close valve V2 and the fourth open / close valve V4 are opened and closed by the controller 400 to be described later, a detailed description thereof will be described later.

The second chamber 310 is formed in a vacuum state by sucking the air in the interior of the second chamber 310 by the rotary pump 320, the reason for making the interior of the second chamber 310 in a vacuum state is described above. This is to allow the air introduced into the storage compartment 100 from the first line 200 to be moved to the second line 300.

Here, the air moved to the second line 300 is air through which the compounding material of the storage container 10 stored in the storage room 100 has passed.

In addition, if the pressure of the air in the second chamber 310 is lower than the pressure in the first chamber 210, it is not necessary to form a vacuum state with the rotary pump 320, the vacuum state and the atmospheric pressure state It may be selectively applied depending on the environment in which it is applied.

Hereinafter, the first to fourth open / close valves V1, V2, V3, and V4 are opened and closed with the control unit 400 of the air permeability measuring device for the blended raw material for sintered ore according to the preferred embodiment of the present invention with reference to FIGS. 1 to 2. The method of measuring the air permeability of the blended raw material for sintered ore will be described.

As described above, the controller 400 may include the first open / close valve V1, the third open / close valve V3 of the first line 200, and the second open / close valve V2 of the second line 300. It controls the opening and closing of the fourth opening and closing valve (V4).

First, as shown in FIG. 1, the controller 400 opens the third opening / closing valve V3 and then drives the compressor 220 to provide air to the inside of the first chamber 210. To make the interior of the first chamber 210 in a high pressure state, the first opening / closing valve V1 installed closer to the storage chamber 100 than the first chamber 210 maintains the closed state.

Thereafter, the control unit 400 closes the third opening / closing valve V3 to maintain the high pressure state inside the first chamber 210. The control unit 400 simultaneously or separately drives the rotary pump 320. The inside of the second chamber 310 is made in a vacuum state, or the pressure is lower than the air pressure inside the first chamber 210, wherein the second chamber 310 is installed closer to the storage chamber 100 than the second The two open and close valves V2 remain closed.

Thereafter, as shown in FIG. 2, the control unit 400 simultaneously opens the first open / close valve V1 and the second open / close valve V2, and the first open / close valve V1 and the second open / close valve V2. Is simultaneously opened, the air stored in the first chamber 210 by the differential pressure flows into the second line 300 via the storage chamber 100. The air flowing into the second line 300 is introduced into the second chamber 310, and after a predetermined time, the pressure inside the first chamber 210 and the pressure inside the second chamber 310 become the same pressure. .

Referring to FIG. 5, there is shown a graph indicating that pressure inside the first chamber and inside the second chamber changes over time.

The change in pressure as described above may include, for example, pressure measuring units 211 and 311 installed in the first chamber 210 and the second chamber 310 to form the inside of the first chamber 210 and the second chamber 310. The pressure may be measured, and the measured value may be transmitted to the controller 400 and displayed as a separate display unit 500.

The point where the pressure measuring units 211 and 311 as described above are installed is not limited to the interior of the first chamber 210 and the second chamber 310, and the first line 200 and the second line 300 may be formed. If the pressure of the air passing through it can be measured, the installation point may be moved in various ways.

As shown in (a) of FIG. 5, when the slope of the graph is rapidly changed, the breathability of the blended raw material is good, and as shown in (c) of FIG. 5, when gradually changed, the breathability of the blended raw material is good. It is not possible.

If the air permeability of the blended raw material is too good, sufficient melt is not produced due to the reduction of the sintering time, and thus the quality of the sintered ore may be deteriorated. On the contrary, if the air permeability of the blended raw material is poor, the productivity of the sintered ore is increased due to the increase of the sintering time. Decreases.

5 (a), 5 (b) and 5 (c) are exemplified values for the air permeability of blended raw materials, and by adjusting the amount of coke or anthracite based on the measured values, the quality and productivity of the sintered ore are improved. If the quality or productivity of the sintered ore is improved, the quality and productivity of the molten iron may also be improved.

Meanwhile, as shown in FIGS. 1 and 2, the second line 300 is preferably provided with a filter 330. The filter 330 is a control unit 400 after the measurement of breathability of the blended raw material is completed. Opening the fourth open / close valve V4 serves to filter the blended raw material contained in the air. For example, the filter 330 may operate the rotary pump 320 while measuring the breathability of the new blended raw material. It is also possible to filter out the blended raw material remaining at (310).

Optimal embodiments have been disclosed in the drawings and specification. Although specific terms are used herein, they are used for the purpose of describing the present invention only and are not used to limit the scope of the present invention described in the meaning of the claims or the claims. Therefore, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

V1-first open / close valve V2-second open-close valve
V3- Third Opening Valve V4- Fourth Opening Valve
10-storage
100-storage room 110-lower body
111-Height adjustment groove 120-Upper body
121-Adjustment height
200-first line 210-first chamber
211-Pressure measuring device 220-Compressor
300-second line 310-second chamber
311-pressure measuring device 320-rotary pump
330-filter
400-
500-display

Claims (7)

Storage room in which the container containing the compound material is installed; and
A first line connected to the storage chamber and having a first chamber in which compressed air is stored, and a first opening / closing valve configured to selectively open and close the air stored in the first chamber into the storage chamber;
A second line connected to the storage chamber and having a second opening / closing valve in which air discharged from the first chamber is introduced and opened / closed to selectively introduce air; and
A third open / close valve installed in the first line; and
And a compressor for providing compressed air of the first chamber when the third opening / closing valve is opened. The method according to claim 1,
And a pressure measuring unit for measuring a pressure change inside the first line and a pressure change inside the second line. The method according to claim 2,
Display unit for displaying the value measured by the pressure measuring unit; Breathable measuring device of the blended raw material, characterized in that it further comprises. delete The method according to claim 1,
A second chamber installed in the second line and into which air flowing out of the first chamber flows; and
A fourth open / close valve installed in the second line; and
A rotary pump which vacuums the inside of the second chamber when the fourth opening / closing valve is opened; and
Filter installed in the second line; Breathable measuring device of the blended raw material, characterized in that it further comprises. The method according to claim 5,
When the air rises to a predetermined pressure in the first chamber, the third opening / closing valve is closed; when the air inside the second chamber is lowered to the predetermined pressure, the fourth opening / closing valve is closed, and the air compressed in the first chamber is closed. And a control unit for simultaneously opening the first open / close valve and the second open / close valve in a stored state. Storage room in which the container containing the compound material is installed; and
A first line connected to the storage chamber, the first chamber having compressed air stored therein, and a first opening / closing valve configured to selectively open and close the air stored in the first chamber into the storage chamber;
And a second line connected to the storage chamber, in which air discharged from the first chamber is introduced, and a second opening / closing valve is opened and closed to selectively introduce air.
Wherein,
Supporting the storage container, the upper portion is opened, the lower body is formed in the upper surface height adjustment groove; And
The upper body is coupled to the upper portion of the lower body to seal the container, the lower surface is in contact with the upper surface of the lower body, the upper body is provided with a height adjusting projection to be raised and lowered by the height adjustment groove; Breathable measuring device for blended raw materials.

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