KR101518556B1 - Apparatus for uniformity cooling sintering ore - Google Patents

Abstract

A sintered light uniform cooling device in which the shape of the inner side of the inside of the cooling drum is improved to prevent the cold wind from flowing excessively to the inner side of the inside of the cooling drum and induces the cold wind to flow in the central portion of the cooling drum to uniformly cool the sintered light Is introduced.
In order to accomplish the above object, the present invention provides a refrigerator comprising: a cooling bogie (100) having both side walls formed in a corrugated shape corresponding to the shape of sintered light so as to prevent deflection of the cool air flowing into the inside into both side walls; A refrigerator (200) for spraying cool air to the cooling truck (100); A cooling induction plate 300 installed on both side walls of the cooling bogie 100 to guide cool air to the center of the cooling bogie 100; .

Description

[0001] APPARATUS FOR UNIFORMITY COOLING SINTERING ORE [0002]

The present invention relates to a sintered light uniform cooling apparatus, and more particularly, to a sintered light uniform cooling apparatus, and more particularly, to an apparatus for uniformly cooling an sintered light, And to cool the sintered light uniformly as a whole by inducing cool air to flow in the central portion of the cooling drum.

In general, as shown in FIG. 1, the sintering machine is such that the upper light emitted through the upper light hopper 1 is charged into the bogie 6, the bogie 6 loaded with the upper light moves, The raw material discharged through the surge hopper 2 installed in the rear of the optical hopper 1 is charged into the upper part of the carriage 6 after a certain amount of moisture is added and discharged from the drum feeder 3. [

At this time, the bogie 6 loaded with the upper light and the blend material passes through the lower portion of the ignition furnace 4, and the sintered surface layer portion is ignited by the hot gas.

On the other hand, when the blower motor 10 located below the bogie 6 operates, the suction force is generated as the main blower 9 rotates.

This suction force is transmitted to the wind box 7 through the chamber 8 located at one side of the blower motor 10. The suction force transmitted to the wind box 7 is again sucked from the lower portion of the bogie 6, The sintering process is performed while passing from the upper side of the sintered layer charged in the bogie 6 to the lower side.

Then, the fired sintered ores are discharged again from the light emitting portion, and the temperature of the sintered ores reaches about 800 ° C.

Generally, the blended raw material charged into the down-suction sintering machine is ignited at the surface layer by the ignition furnace (4) and is moved to the light-emitting portion of about 100 m by the driving wheel, and is subjected to combustion, melting and bonding processes, And is discharged from the minerals.

At this time, the quartz light emitted from the light-splitting unit is crushed by a crusher (not shown), and then supplied to a sintering cooler (not shown) to perform a cooling process.

Such a sintered cooler blows cooling air (cold air) from the lower part to the upper part while carrying a sintered light of high temperature on the cooling conveyor, and the sintered light is cooled by air for about one hour. After the cooling, Moved to the conveyor.

On the other hand, the sintered ores produced in the sintering machine have various particle sizes of about 50 to 150 mm, and since they have heat set at about 800 ° C even at room temperature, they need cooling in the sintering cooler.

A process of cooling the sintered light by the sintering cooler 20 will be described with reference to FIG.

The sintered ores shattered by the crusher are moved through the supply chute 21 and the lower end of the supply chute 21 is installed in the light emitter of the sintered cooler 20, Is charged.

The cooling truck 100 is continuously rotated while being guided by the turntable rail provided in the sintering cooler 20 and the truck wheel 31 provided below the cooling truck 100 is in contact with the upper surface of the fixed rail 32 So that the sintering light is sequentially charged into the plurality of cooling trucks 100 installed in the sintering cooler 20 through this process.

If the cooler fan 40 operates when the cooling truck 100 loaded with the sintered ores is rotated, the outside air flows into the inside of the air duct 50, So that the sintered light charged into the cooling truck 100 is cooled and then discharged to the outside while passing through the upper part of the cooling truck 100.

When the cooling truck 100 loaded with the sintered light moves to the light distribution portion of the sintering cooler 20, the sintered light charged into the cooling truck 100 is discharged through the hopper 60 for discharging the sintered ores.

The sintered light emitted to the hopper 60 for sintered light discharge is supplied to the belt conveyor 80 while being guided by the sintered light inner feeder 70, and then moved to the destination.

The high-temperature sintered light, which is crushed by the crusher (not shown), is cooled by the low temperature sintered light while being transferred to the cooling truck 100, and then supplied to the belt conveyor 80.

At this time, the sintering cooler 20 should cool the sintered light having a high temperature of about 800 DEG C to 100 DEG C or less. If the sintered light is not sufficiently cooled, the sintered light is heated by the sintered light of the high temperature to the belt conveyor 80 or the screen ), Which results in a problem of overall productivity deterioration.

The problem of lowering the efficiency of the cooling process in the sintering cooler including the cooling bogie and the cooling fan located under the cooling boggle will be described with reference to FIG.

The cooling air (cool air) supplied from the lower part of the cooling bogie 100 has a property of flowing to a good ventilation space, which is a space where the air can flow, like a normal air. On the contrary, I have.

The sintered light stored in the cooling bed 100 is composed of various particles and the cold air introduced into the cooling bed 100 is cooled by 50% or more of the cold air along the inner side of the cooling bed 100, .

This is because the space between the inner surface of the cooling bogie 100 and the particle surface of the sintered ores is wider than the central portion of the cooling bogie 100 and the cool air flows through the inner surface of the cooling bogie 100 more than the central portion.

However, the portion to be mainly cooled in the cooling bogie 100 is a central portion where a large amount of sintered light is accumulated than the peripheral portion of the cooling bogie 100, and the cold air A flows mainly along the inner side of the cooling bogie 100, The sintered light inside the cooling truck 100 can not be uniformly cooled.

As a result, the sintered light accumulated in the vicinity of the inner side of the cooling rack 100 is subcooled by the inflow of the excessive cold air A, and the temperature of the sintered light is lowered to about 7 DEG C. On the other hand, The sintered ores are maintained at a temperature higher than approximately 300 ° C.

As a result, when the sintered ores are supplied to the belt conveyor 80 without being sufficiently cooled in the cooling truck 100, the sintered light causes a fire due to the sintering of the high temperature. To prevent this, conventionally, cooling water is sprayed onto the sintered high- Has been cooled below the set temperature.

However, such cooling water is supplied from the upper side to the lower side of the sintered ores, and the cold air A is supplied from the lower side to the upper side of the sintered ores and the flow directions of the cooling water and the cooling air are opposite to each other, And the time required for the cooling water supplied from the upper part to reach the sintered light in the lower part is also delayed, thereby causing a problem that the production amount of the sintered ores is reduced.

A variety of devices or systems including a cooling device for a sinter orbit cooler and a sealing and cooling efficiency device for a sinter orbit cooling device, which are disclosed in Korean Patent Registration No. 10-0950399 and Korean Patent Registration No. 10-0543299, However, no apparatus has been proposed in which the shape of the inside surface of the cooling drum is simply improved as in the present invention, and the cooling of the sintered ores is uniformly performed even at a small cost.

Korean Registered Patent No. 10-0950399 (registered on March 23, 2010) Korean Registered Patent No. 10-0543299 (registered on Jan. 2006, 2006)

In order to solve such a conventional problem, the present invention forms the inner surface of the cooling truck so as to correspond to the surface shape of the sintered light so as to minimize the air gap between the sintered ores located around the inner side of the cooling rack to prevent the excessive cold air from flowing. It is a matter of course to provide uniform cooling of the sintered light by inducing cold wind flow toward the central portion of the cooling drum and to prevent breakage of the belt conveyor due to the uneven cooling of the conventional sintered light and to improve the overall productivity of the sintered light It has its purpose.

In order to accomplish the above object, a sintered light uniform cooling apparatus according to the present invention is a cooling device for cooling a sidewall of a sidewall of a sidewall, ; A refrigerator (200) for spraying cool air to the cooling truck (100); A cooling induction plate 300 installed on both side walls of the cooling bogie 100 to guide cool air to the center of the cooling bogie 100; .

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A plurality of the cooling induction plates are installed at regular intervals in the longitudinal direction, and are each provided so as to be inclined downward toward the center of the cooling lorry.

And a plurality of air holes are formed in the cooling induction plate.

And the length of each of the plurality of cooling induction plates decreases sequentially from the lower part of the cooling truck to the upper part thereof.

The present invention can achieve the following various effects due to the technical structure as described above.

First, there is an advantage that the cooling efficiency of the sintered ores is increased by uniformly cooling the sintered light loaded in the cooling drum in the cooler including the cooling drum and the cool air.

Second, the uniform cooling of the sintered ores is achieved, which prevents the belt conveyor and the screen from being damaged by the sintering light of the conventional high temperature.

Third, various advantages such as improved productivity of the sintered ores by the uniform uniform cooling of the sintered ores are provided.

1 is a schematic view showing a general sintering process;
2 is a perspective view showing a conventional sintered cooler including a cooling drum, a belt conveyor, and the like.
3 is a view showing a flow state of cool air supplied from a lower portion of a conventional cooling truck;
Fig. 4 is a front view showing a wrinkle formed on a side surface of the cooling truck of the present invention; Fig.
Fig. 5 is a front view of the cooling bogie according to the present invention in which a cooling induction plate is provided on a side surface thereof; Fig.
6 is a perspective view in which a plurality of air holes are formed in the cooling induction plate;
7 is a front view showing that the length of the cooling induction plate decreases sequentially from the lower part to the upper part.

Hereinafter, a sintered light uniform cooling apparatus according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 4, the sintered light uniform cooling apparatus of the present invention includes a cooling truck 100 and a cooler 200.

A grizzly bar having a plurality of slot grooves is installed on the bottom of the cooling bogie 100 so that the cool air A injected from the cooler 200 located below the cooling bogie 100 flows into the cooling bogie 100.

The cool air A injected from the cool air blower 200 is introduced into the cooling truck 100 to cool the hot sintered light for approximately one hour and transfer the cooled sintered light to the belt conveyor through the discharge chute.

In order to prevent the cold wind A flowing into the inside from being deflected toward the inner side of the cooling car 100, the present invention is characterized in that the inner side implemented in a shape corresponding to the surface shape of the sintered light to be loaded is provided, Thereby reducing the amount of cold air that is deflected toward the inner side.

In other words, the inner surface of the conventional cooling truck 100 is designed in a planar shape, and a kind of gap is formed between the surface and the inner side surface of the sintered light which is placed on the inner side of the sintered body, Is formed to be slightly larger than the gap between the sintered ores located at the center of the cooling bogie (100) due to the flat inner surface, the flow rate of the cool air flowing into the inner side through the gap and the gap becomes larger than the central portion, A problem of flowing occurred.

In order to solve such problems, it is preferable that the present invention is provided such that the shape corresponding to the surface shape of the sintered ores is provided on the inner side of the cooling truck 100, and the surface shape is formed so as to correspond to the average surface shape of the sintered ores. And the inner side surface thereof is formed in a corrugated shape.

At this time, it is preferable that the average particle size of the general sintered ores is 40 mm and the wrinkles are also formed at intervals of 40 mm so that the sintered light can be matched to the grooves provided in the corrugations. However, 100), it is possible to adjust the creasing interval of the cooling truck according to the size of the sintered light grain size.

Furthermore, since sintered light having various sizes can be loaded on the cooling truck 100, it is more preferable that the corrugation formed on the inner side is made of a flexible material.

As shown in the enlarged view of FIG. 4, the grooves formed in the corrugations and the surface shapes of the sintered ores are generally matched so that the sintered light can be pushed in the lateral direction in the cooling rack 100 as compared with the conventional one, The air passage of the cool air is limited, thereby reducing the flow rate of cool air flowing from the lower part.

In other words, the squeezing induction is induced between the wrinkles and the sintered ores, so that the uniform cooling of the entire sintered organs is achieved by substantially similar to the flow of the cold air in the central portion of the cooling truck 100.

As shown in FIG. 5, the present invention is characterized in that a cooling induction plate 300 is installed on the inner surface of a cooling bogie 100.

The cooling induction plate 300 reduces the flow rate of the cool air A flowing along the inner side and induces the cool air A introduced from the lower part of the cooling rack 100 to the central portion of the cooling car 100, Cooling is planned.

The cold air A introduced from the lower part is directed to the center of the cooling bogie 100 after hitting the cooling induction plate 300. The sintered light located in the central part, which is the main object to be cooled by the induced cold air A, .

The width of the cooling induction plate 300 is preferably about 150 mm ² , but is not limited thereto. The cooling induction plate 300 can be adjusted to suit the working environment according to the flow rate of the cold air A.

A plurality of the cooling induction plates 300 are installed at predetermined intervals in the longitudinal direction along the inner side of the cooling car 100 so that the cooling air flow to the center of the cooling car 100 can be smoothly performed Each cooling induction plate 300 may be installed to be inclined downward at a predetermined angle toward the center of the cooling lorry 100.

The cold wind A cooling the sintered light flows from the lower portion of the cooling truck 100 so that the cold wind A can smoothly flow to the center of the cooling truck 100 in consideration of the resistance of the cold wind A flowing in from below. It is installed downward at an angle.

The downward inclination angle is preferably about 10 degrees, but the present invention is not limited thereto, and the inclination can be adjusted in consideration of the flow rate and the speed of the cold wind.

6, the cooling guide plate 300 has a plurality of air holes H formed therein.

The reason why the cooling induction plate 300 is formed with a plurality of air holes H is to prevent the cooling airflow A from flowing to the center of the cooling carriage 100 more than necessary due to the cooling induction plate 300, (A) through the air passage hole (H) to flow along the side surface of the cooling bogie (100).

7, the length of each of the plurality of cooling induction plates 300 is gradually decreased from the lower part of the cooling truck 100 to the upper part thereof.

The reason why the extended length of the cooling induction plate 300 is sequentially decreased from the lower part to the upper part is as follows.

The cool air A flowing into the cooling bogie 100 flows from the lower portion of the cooling bogie 100. Since the speed and the flow rate of the cool air A flowing from the lower portion of the cooling bogie 100 are higher than those of the other portions, This is because it is necessary to provide a cooling guide plate 300 having a larger area in order to induce such cold air to the central portion of the carriage 100.

For this reason, the length of the cooling induction plate 300 located at the bottom of the plurality of cooling induction plates 300 is the longest, and the length of the cooling induction plate 300 is sequentially decreased as the distance from the top of the cooling induction plate 300 increases.

According to the sintered light uniform cooling apparatus of the present invention having the above-described structure, the flow of the cold airflow A in the cooling rack 100 is maintained at an appropriate level, A larger amount of cold air A is supplied to the central portion of the heat exchanger 100 to uniformly cool the sintered light as a whole.

100: Cooling tank 200: Cooling fan
300: cooling induction plate H: air passage hole
A: Cold wind

Claims (6)

A cooling bogie 100 having both side walls formed in a corrugated shape corresponding to the shape of the sintered ores so as to prevent the cooling air flowing into the inside from being deflected to both side walls;
A refrigerator (200) for spraying cool air to the cooling truck (100);
A cooling induction plate 300 installed on both side walls of the cooling bogie 100 to guide cool air to the center of the cooling bogie 100; Wherein the sintered light is uniformly cooled.
delete delete The method according to claim 1,
The cooling induction plate (300)
And a plurality of cooling fans are installed at predetermined intervals in the longitudinal direction and each of the cooling fans is installed to be inclined downward toward the center of the cooling car.
The method of claim 4,
Wherein a plurality of air holes (H) are formed in the cooling induction plate (300).
The method according to any one of claims 4 to 5,
Wherein a length of each of the plurality of cooling induction plates (300) decreases sequentially from the lower part to the upper part of the cooling truck (100).

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