KR101759331B1 - Device for sorting of grain size - Google Patents

Device for sorting of grain size Download PDF

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Publication number
KR101759331B1
KR101759331B1 KR1020150182730A KR20150182730A KR101759331B1 KR 101759331 B1 KR101759331 B1 KR 101759331B1 KR 1020150182730 A KR1020150182730 A KR 1020150182730A KR 20150182730 A KR20150182730 A KR 20150182730A KR 101759331 B1 KR101759331 B1 KR 101759331B1
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KR
South Korea
Prior art keywords
damper
delete delete
damper plate
conveyor belt
chute
Prior art date
Application number
KR1020150182730A
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Korean (ko)
Other versions
KR20170073928A (en
Inventor
백찬영
Original Assignee
주식회사 포스코
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Priority to KR1020150182730A priority Critical patent/KR101759331B1/en
Publication of KR20170073928A publication Critical patent/KR20170073928A/en
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Publication of KR101759331B1 publication Critical patent/KR101759331B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/04—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to size
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/14—Details or accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/14—Details or accessories
    • B07B13/16—Feed or discharge arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/14—Details or accessories
    • B07B13/18—Control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G11/00—Chutes
    • B65G11/20—Auxiliary devices, e.g. for deflecting, controlling speed of, or agitating articles or solids
    • B65G11/206—Auxiliary devices, e.g. for deflecting, controlling speed of, or agitating articles or solids for bulk
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/04—Bulk
    • B65G2201/045—Sand, soil and mineral ore

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  • Combined Means For Separation Of Solids (AREA)

Abstract

The apparatus for distinguishing particle sizes according to an embodiment of the present invention includes a conveyor belt for conveying sintered ores, a head pulley for rotating the conveyor belt, a chute for providing a space for conveying the sintered ores, a damper tip located in the chute, And a damper plate connected to the damper plate.

Description

DEVICE FOR SORTING OF GRAIN SIZE

The present invention relates to a device for distinguishing a material to be delivered by particle size.

The blast furnace operation is the process of producing iron charcoal. Iron ore containing iron component is selected with appropriate particle size. Coke which plays a role of maintaining the reducing agent and ventilation in the blast furnace is selected in appropriate granularity and layered or mixed into the blast furnace. Then, hot air is blown through the tuyere installed in the lower part of the blast furnace to manufacture the molten iron.

In this blast furnace operation, there is a charging technology for different sizes of sintered ores depending on the size of the sintered ore, and to deposit the sintered ore in a separate position in order to prevent excessive heat load on the wall of the furnace and ensure smooth ventilation and reduction in the center. Grain loading technology is to charge small iron ore to the wall of the blast furnace and charge ore to the middle of the blast furnace. In order to use these granular loading techniques, ores must be sorted by granularity first.

There is a method of sifting by the method of sorting by size. It is a method of distinguishing between confrontation and granularity by using a sieve of scale. In order to change the grain size to be selected during the actual operation, this method of constructing should be temporarily stopped because the body must be changed while the operation is continuously performed.

And to provide a device that can effectively distinguish the articles to be conveyed.

The apparatus for distinguishing grain sizes according to an embodiment of the present invention includes a conveyor belt for conveying a conveyed material, a head pulley for rotating the conveyor belt, a chute for providing a space through which the conveyed material is conveyed, a damper tip And a damper plate connected to the damper tip.

The damper plate may be rotatable along a rotation axis to adjust the position of the damper tip.

The damper tip may be positioned in a drop trajectory of the conveyed object so as to divide the conveyed object along the particle size.

The degree of rotation of the damper plate may be determined according to the conveyance speed of the conveyor belt.

When the conveying speed of the conveyor belt is 110.5 m / sec, the distance from the center of the head pulley to the rotational axis of the damper plate may be 600 mm.

The height from the rotation axis of the damper plate to the center of the head pulley may be 1818 mm.

The distance from the center of the head pulley to the wall surface of the chute may be 1600 mm.

The degree of rotation of the damper plate may be determined according to the conveyance speed of the conveyor belt.

When the conveying speed of the conveyor belt is 110.5 m / sec, the distance from the center of the head pulley to the rotational axis of the damper plate may be 600 mm.

The height from the rotation axis of the damper plate to the center of the head pulley may be 1818 mm.

The distance from the center of the head pulley to the wall surface of the chute may be 1600 mm.

When the speed of the conveyor belt is 110.5 m / sec, the height from the rotation axis of the damper plate to the center of the head pulley may be 1818 mm.

The distance from the center of the head pulley to the wall surface of the chute may be 1600 mm.

When the speed of the conveyor belt is 110.5 m / sec, the distance from the center of the head pulley to the wall surface of the chute may be 1600 mm.

The damper tip may be positioned in a drop trajectory of the conveyed object so as to divide the conveyed object along the particle size.

When the conveying speed of the conveyor belt is 110.5 m / sec, the distance from the center of the head pulley to the rotational axis of the damper plate may be 600 mm.

The height from the rotation axis of the damper plate to the center of the head pulley may be 1818 mm.

The distance from the center of the head pulley to the wall surface of the chute may be 1600 mm.

When the speed of the conveyor belt is 110.5 m / sec, the height from the rotation axis of the damper plate to the center of the head pulley may be 1818 mm.

The distance from the center of the head pulley to the wall surface of the chute may be 1600 mm.

When the speed of the conveyor belt is 110.5 m / sec, the distance from the center of the head pulley to the wall surface of the chute may be 1600 mm.

According to the present invention, it is possible to effectively separate the conveyed matter from the granular material and the granular material depending on the granularity. Therefore, when blast furnace operation is performed, application of granular charging technology prevents excessive heat load on the furnace wall and smooth ventilation and reduction And the reduction ratio can be reduced.

FIG. 1 is a view schematically showing a particle size discriminating apparatus according to an embodiment of the present invention.
FIG. 2 is an enlarged view of a damper tip and a damper plate of a particle size discriminating apparatus according to an embodiment of the present invention.
3 is a graph illustrating an effect of the particle size discriminating apparatus according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

In addition, since the sizes and thicknesses of the respective components shown in the drawings are arbitrarily shown for convenience of explanation, the present invention is not necessarily limited to those shown in the drawings. In the drawings, the size is enlarged in order to clearly represent a part of the constitution.

Also, throughout the specification, when an element is referred to as "including" an element, it is understood that the element may include other elements as well, without departing from the other elements unless specifically stated otherwise.

The particle discrimination apparatus according to an embodiment of the present invention will now be described in detail with reference to FIGS. 1 to 3. FIG.

FIG. 1 is a view schematically showing a particle size discriminating apparatus according to an embodiment of the present invention. FIG. 2 is an enlarged view of a damper tip and a damper plate of a particle size discriminating apparatus according to an embodiment of the present invention. 3 is a graph illustrating an effect of the particle size discriminating apparatus according to an embodiment of the present invention.

The apparatus for sorting granular particles according to an embodiment of the present invention includes a chute 1, a damper tip 2, a damper plate 3, a conveyor belt 4, and a head pulley 5.

As shown in Fig. 1, the conveyor belt 4 rotated by the head pulley 5 feeds the conveyed object A into the chute 1. The chute 1 provides a space through which the transported object A is transported. The article A delivered into the chute 1 through the conveyor belt 4 falls inside the chute 1. [ The material A may be an sintered ore.

The damper tip 2 is located inside the chute 1 and the tip of the damper tip 2 is located in a drop trajectory drawn while the article A falls. Therefore, the article A which has fallen is divided into the right and left sides of the damper tip 2 by the damper tip 2 in the middle of the falling flow.

The damper plate 3 is connected to the damper tip 2 and the position of the damper tip 1 can be adjusted by adjusting the position of the damper plate 3. The damper plate 3 is rotatable about the axis of rotation z as shown in FIG. 2 so as to adjust the position of the damper tip 1. In Figs. 1 and 2, the rotation axis z is a direction through which the ground penetrates.

When the size of the particles contained in the transported product A is different, the small particles of the particles may escape into the gap between the large opposites, so that the major part is located at the upper part of the transported product A, Located. Therefore, when such a conveyed object A meets the damper tip 2, the opposing portion is mainly divided by the damper tip 2 to the far side from the falling position, and the small portion is classified near to the falling position. That is, referring to Fig. 1, the conveyed object B divided to the left side of the damper tip 2 far from the position where the conveyed object A falls falls mainly in confrontation, and is classified to the right side of the damper tip 2 (C) mainly contains granules.

At this time, it is possible to adjust the rate at which the conveyed object A is separated according to the position of the damper plate 3. Not only the position of the damper plate 3 but also the width of the chute 1 affects the particle size selection.

In order to determine the position of the damper plate 3 and the width of the chute 1, the conveying speed of the conveyor belt 4 should be considered. When the conveying speed is high, the radius of the drop trajectory becomes large when the conveyed object A falls through the head pulley 5, and when the conveying speed is low, the radius of the fall trajectory becomes small. The damper plate 3 is rotated and adjusted so that the end of the damper tip 2 is positioned in the drop trajectory in consideration of the drop trajectory of the article A to be conveyed. The position of the damper plate 3 and the width of the chute 1 are determined in consideration of such a feature so that the article A can be effectively sorted by the particle size through the damper tip 2 and the damper plate 3. [

Considering this characteristic, when the speed of the conveyor belt 4 is 110.5 m / sec, the distance Di from the center of the head pulley 5 to the rotational axis z of the damper plate 3 is 600 mm, The distance Dd from the rotational axis z of the head pulley 5 to the center of the head pulley 5 is 1818 mm and the distance Sd from the center of the head pulley 5 through the damper plate 3 to the wall surface of the chute 1 is 1600 mm, the conveyed object A can be effectively classified by the particle size through the damper tip 2 and the damper plate 3. [

3 is a sectional view of the apparatus for distinguishing grain size according to an embodiment of the present invention when the speed of the conveyor belt 4 is 110.5 m / sec, the distance from the center of the head pulley 5 to the rotational axis z of the damper plate 3 The height Dh from the rotational axis z of the damper plate 3 to the center of the head pulley 5 is 1818 mm and the distance Di between the center of the head pulley 5 and the damper plate 3 1) is 1600 mm, and the distance Sd to the wall surface is 1600 mm.

In Fig. 3, the two graph lines represent a conveyance B divided into the left side of the damper tip 2 and a conveyance C divided to the right in the chute 1 of Fig. 1, respectively. The abscissa indicates the particle size (mm), that is, the particle size, and the ordinate axis indicates the weight (kg) of a particle having a certain size, that is, the particle having a certain size.

In the case of the article B classified on the left side of the shoot 1, the amount of particles having a particle size of 15 mm or more is relatively larger than the amount of particles having a particle size of 15 mm or less and the article C classified on the right side of the chute 1, The amount of particles having a particle size of 15 mm or less is relatively larger than the amount of particles having a particle size of 15 mm or more. In other words, it can be confirmed that the conveyed object A is effectively classified into the opposing and small portions through the damper tip 2 and the damper plate 3.

In the case of using the granularity discriminating device, it is not necessary to stop the operation even when the granularity to be sorted is changed in actual continuous operation, and the transferred material can be effectively separated into granularity and confrontation, And a sintering method in which the sintered ores are charged according to their particle sizes. Accordingly, it is possible to prevent excessive heat load on the wall of the furnace, to ensure smooth ventilation and reduction in the center portion, to efficiently operate the blast furnace, and to reduce the reduction ratio.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the following claims. Those who are engaged in the technology field will understand easily.

1: Suit 2: Damper tip
3: damper plate 4: conveyor belt
5: head pulley 10: particle size discriminating device

Claims (21)

A conveyor belt for conveying the conveyed object,
A head pulley for rotating the conveyor belt,
A chute for providing a space through which the conveyed object is conveyed,
A damper tip located inside the chute;
And a damper plate connected to the damper tip,
The damper plate is rotatable along a rotation axis so as to adjust a position of the damper tip.
The distance from the center of the head pulley to the rotational axis of the damper plate is 600 mm when the conveying speed of the conveyor belt is 110.5 m / sec, the height from the rotational axis of the damper plate to the center of the head pulley is 1818 mm, And the distance from the wall of the chute to the wall surface is 1600 mm. delete The method of claim 1,
Wherein the damper tip is located in a drop trajectory of the conveyed object so that the conveyed object can be divided according to the particle size. 4. The method of claim 3,
Wherein the degree of rotation of the damper plate is determined by the conveying speed of the conveyor belt. delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete
KR1020150182730A 2015-12-21 2015-12-21 Device for sorting of grain size KR101759331B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150182730A KR101759331B1 (en) 2015-12-21 2015-12-21 Device for sorting of grain size

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150182730A KR101759331B1 (en) 2015-12-21 2015-12-21 Device for sorting of grain size

Publications (2)

Publication Number Publication Date
KR20170073928A KR20170073928A (en) 2017-06-29
KR101759331B1 true KR101759331B1 (en) 2017-07-18

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002355577A (en) * 2001-05-31 2002-12-10 Seihoo:Kk Sorter
JP2003311216A (en) * 2002-04-25 2003-11-05 Sumitomo Metal Ind Ltd Method for sorting grain size of raw material and sorter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002355577A (en) * 2001-05-31 2002-12-10 Seihoo:Kk Sorter
JP2003311216A (en) * 2002-04-25 2003-11-05 Sumitomo Metal Ind Ltd Method for sorting grain size of raw material and sorter

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