KR20160134899A - Apparatus for inserting material - Google Patents

Apparatus for inserting material Download PDF

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Publication number
KR20160134899A
KR20160134899A KR1020150066527A KR20150066527A KR20160134899A KR 20160134899 A KR20160134899 A KR 20160134899A KR 1020150066527 A KR1020150066527 A KR 1020150066527A KR 20150066527 A KR20150066527 A KR 20150066527A KR 20160134899 A KR20160134899 A KR 20160134899A
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KR
South Korea
Prior art keywords
raw material
main hopper
hopper
opening
main
Prior art date
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KR1020150066527A
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Korean (ko)
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KR101708688B1 (en
Inventor
강태순
정현돈
Original Assignee
주식회사 포스코
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Priority to KR1020150066527A priority Critical patent/KR101708688B1/en
Publication of KR20160134899A publication Critical patent/KR20160134899A/en
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Publication of KR101708688B1 publication Critical patent/KR101708688B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/0033—Charging; Discharging; Manipulation of charge charging of particulate material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/18—Arrangements of devices for charging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/10—Charging directly from hoppers or shoots
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/10—Charging directly from hoppers or shoots
    • F27D2003/105—Charging directly from hoppers or shoots using shutters

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

A raw material feeding apparatus is disclosed. The raw material feeding apparatus according to an embodiment of the present invention includes a main hopper which is supplied with a raw material to be transported and dropped from a raw material storage chamber, an auxiliary hopper which surrounds the main hopper to receive a raw material which is not supplied to the main hopper, A raw material supply duct for discharging the raw material introduced into the main hopper and a raw material recovery duct for discharging the raw material introduced into the auxiliary hopper in connection with the auxiliary hopper to the raw material storage chamber.

Figure P1020150066527

Description

[0001] APPARATUS FOR INSERTING MATERIAL [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a raw material feeding apparatus, and more particularly, to a raw material feeding apparatus for feeding a raw material stored in a raw material storage chamber to a basket.

Generally, an electric furnace is a furnace in which a metal or an alloy is heated and melted by utilizing a thermal effect of an electric current. An arc furnace connected to an upper part of an electric furnace is used to dissolve a raw material in the electric furnace.

Referring to FIG. 1, a raw material to be charged into the electric furnace is usually introduced using a basket 26, which is a charging container. The raw material is stored in a bay 10, And the tongue 21 is moved up to the upper portion of the basket 26 placed on the carriage 25 moving along the rail 15 and then the gravy is dropped to drop the basket 26, .

Nickel having a small particle size (about 10 to 20 mm) among the raw materials held by the forceps 21 is small in particle size and falls down on the floor during the movement by the forceps 21 or scattered in the process of putting it into the basket 26 Is frequently generated.

As a result, the dimmed raw material is mixed into the bays storing different raw materials, or the quantitative raw material is not allowed to enter into the basket 26, thereby causing a component deviation of the molten steel and an equipment accident due to environmental pollution.

In addition, the method of introducing the raw material into such a basket causes waste of nickel, which is an expensive raw material, resulting in a decrease in productivity due to an increase in manufacturing cost.

Embodiments of the present invention provide a raw material feeding device capable of reducing mixing of raw materials and scattering which may occur during the process of feeding raw materials into a basket.

According to an aspect of the present invention, there is provided a hopper comprising: a main hopper which is supplied with a raw material to be transported and dropped from a raw material storage chamber; an auxiliary hopper which surrounds the main hopper to receive a raw material that is not supplied to the main hopper; A raw material supply duct for discharging the raw material charged into the main hopper, and a raw material recovery device for discharging the raw material into the raw material storage room in cooperation with the auxiliary hopper.

The raw material is transported from the raw material storage room to a gripper crane and dropped into the main hopper. The raw material supply duct is connected to an outlet of the main hopper and is connected to a basket for receiving and transporting the raw material supplied to the main hopper, The raw material recovery duct may be connected to the outlet of the auxiliary hopper, and may receive the raw material input to the auxiliary hopper and discharge the raw material into the raw material storage room.

A main hopper for supporting the main hopper and sensing the weight of the main hopper; an opening / closing device for opening / closing the outlet of the main hopper; And a control unit for controlling opening and closing.

In addition, a raw material transfer device for transferring the raw material may be installed in the raw material supply duct and the raw material recovery duct.

Further, the raw material conveying device includes a conveying chain provided with a bucket for receiving the raw material and orbiting by the driving force of the motor.

The embodiments of the present invention can reduce the mixing of raw materials and scattering which may occur during the process of putting the raw material stored in the raw material storage room into the basket.

In addition, the embodiments of the present invention enable quantitative introduction of raw materials into the basket, thereby reducing the occurrence of component variations.

Further, the embodiments of the present invention prevent contamination of peripheral equipment due to scattering of raw materials, thereby preventing facility accidents.

FIG. 1 schematically shows a process of introducing a raw material into an existing basket.
FIG. 2 illustrates a process for introducing a raw material using the raw material input apparatus according to an embodiment of the present invention.
3 is an enlarged view of a portion A in Fig.
4 is a control block diagram of an opening and closing apparatus according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below are provided by way of example so that those skilled in the art will be able to fully understand the spirit of the present invention. The present invention is not limited to the embodiments described below, but may be embodied in other forms. In order to clearly explain the present invention, parts not related to the description are omitted from the drawings, and the width, length, thickness, etc. of the components may be exaggerated for convenience. Like reference numerals designate like elements throughout the specification.

FIG. 2 is an enlarged view of a portion A of FIG. 2, and FIG. 4 is a cross-sectional view illustrating a control of the opening and closing device according to an embodiment of the present invention. Block diagram.

2 to 4, a raw material feeding device 30 according to an embodiment of the present invention includes a rack 25 disposed adjacent to a raw material storage room 10 storing raw materials and moving along a rail 25, To the basket (26) placed on the basket (26).

The raw material feeding device 30 includes a main hopper 40, an auxiliary hopper 50, a raw material supply duct 60 and a raw material recovery duct 70.

The raw material (for example, nickel) stored in the raw material storage chamber 10 is dropped into the main hopper 40 by the forceps 21 of the clamping cranes 20 and the raw material accommodated in the main hopper 40 is supplied to the raw material supply duct 60 into the basket 26 seated on the carriage 25.

The main hopper 40 is provided in the shape of a container opened at the top so as to feed the material dropped by the forceps 21 and has a conical cone shape in which the diameter decreases from the open top to the bottom in order to smoothly feed and discharge the raw material As shown in FIG.

At the lower end of the main hopper 40, an opening / closing device 80 for opening / closing the outlet through which the raw material stored in the main hopper 40 is discharged is provided. The opening / closing device 80 may be provided in the form of a slide gate which is opened or closed according to a control signal of the control unit 85.

The main hopper 40 can accommodate the raw material dropped by the forceps 21 and supply a predetermined amount of raw material to the raw material supply duct 60.

To this end, a weight sensing part 90 for sensing the weight of the main hopper 40 containing the raw material is installed below the main hopper 40.

The weight sensing unit 90 includes a load cell for sensing the weight of the main hopper 40 containing the raw material in real time. The load cell is electrically connected to the control unit 85 and transmits the sensed signal.

The control unit 85 opens the outlet of the main hopper 40 through the opening and closing device 80 to detect the weight of the main hopper 40 ) To the raw material supply duct (60).

The raw material supply duct 60 receives the raw material dropped from the outlet of the main hopper 40 and delivers the raw material to the basket 26 seated on the carriage 25 through the raw material feed device 61 provided therein.

The raw material conveying device 61 includes a conveying chain 63 provided with a plurality of buckets 62 for receiving the raw material falling from the main hopper 40 into the raw material supply duct 60.

The transfer chain 63 is supported by at least one sprocket (not shown) that rotates by the driving force of the motor 64 and is adapted to orbiting the transfer chain 63, The raw material can be transported toward the discharge port 65 of the raw material supply duct 60.

The raw material supply duct 60 has one side communicated with the outlet of the main hopper 40 and the other side extending toward the upper side of the basket 26 seated on the carriage 25, The raw material can be prevented from being leaked to the outside of the basket 26 by the feed of the raw material.

The raw material supply duct 60 disposed at the upper portion of the basket 26 may be constituted by a rotary chute 66 provided rotatably via a rotary joint 67.

The rotating chute (66) rotates to adjust the position of the raw material in accordance with the position of the basket (26), so that it is possible to feed the raw material into the basket (26) stably.

The rotary chute 66 can also be pivoted to avoid interference in the process of introducing other raw materials into the basket 26 via the gripper crane 20.

The auxiliary hopper 50 may be provided in the form of a container that surrounds the main hopper 40 so as to accommodate raw materials scattered in the course of the raw material being fed into the main hopper 40 from the tongs 21.

The auxiliary hopper 50 is configured such that the raw material is scattered without being injected into the main hopper 40 during the course of feeding the raw material into the main hopper 40 to contaminate the peripheral equipment or the scattered raw material is mixed into the other raw material storage chamber 10 prevent.

The auxiliary hopper 50 may be provided in a conical container shape in which the diameter of the raw hopper 40 is reduced from the upper part to the lower part so as to smoothly introduce and discharge the raw material not supplied to the main hopper 40.

The raw material accommodated in the auxiliary hopper 50 is again discharged to the raw material storage chamber 10 by the raw material recovery duct 70.

One side of the material recovery duct 70 may communicate with the outlet of the auxiliary hopper 50 and the other side may extend toward the upper side of the raw material storage chamber 10.

The raw material recovery duct 70 disposed on the upper side of the raw material storage chamber 10 may be constituted by a rotary chute 73 which is rotatably installed via a rotary joint 70.

In addition, a raw material transfer device 61 for transferring the raw materials input from the auxiliary hopper 50 to the raw material storage chamber 10 may be disposed in the raw material recovery duct 70.

With this configuration, when the carriage 25 on which the basket 26 is placed reaches the loading position for receiving the raw material, the clamping cranes 20 are moved in the direction in which the raw material stored in the raw material storage room 10 And then dropped from the top of the main hopper 40. [

At this time, most of the raw material falling from the tongue 21 is put into the main hopper 40, but a part of the raw material is scattered around the main hopper 40.

The raw material charged into the main hopper 40 is weighted in real time by the weight sensing part 90 and the signal sensed by the weight sensing part 90 is transmitted to the control part 85.

The control unit 85 controls the supply of the raw material stored in the main hopper 40 to the raw material supply duct 60 when the raw material input to the main hopper 40 reaches a predetermined weight based on the sensed signal of the weight sensing unit 90 The opening / closing device 80 is opened.

Accordingly, the raw material supplied to the raw material supply duct 60 is transported through the raw material transfer device 61 to the basket 26, so that a predetermined amount of raw material is supplied to the basket 26 without flowing out of the raw material.

Some raw materials that are scattered without being injected into the main hopper 40 are introduced into the auxiliary hopper 50.

The raw material introduced into the auxiliary hopper 50 is returned to the raw material storage chamber 10 through the raw material recovery duct 70.

Therefore, the auxiliary hopper 50 prevents the raw materials scattered in the raw material inputting process from being locally accumulated around the main hopper 40, and also restores the scattered raw materials to the raw material storage room 10 again, Thereby preventing the raw material from being wasted.

10: raw material storage room, 20: tongue crane,
21: forceps, 26: basket,
30: feedstock feeding device, 40: main hopper,
50: auxiliary hopper, 60: feed duct,
61: feed conveying device, 62: bucket,
63: conveying chain, 70: material recovery duct,
80: opening / closing device, 85: control part,
90: Heavy weight section.

Claims (5)

A main hopper which is fed from a raw material storage room and supplied with a raw material to be dropped;
An auxiliary hopper for wrapping around the main hopper to receive a raw material which is not fed into the main hopper;
A raw material supply duct connected to the main hopper to discharge the raw material introduced into the main hopper; And
And a raw material recovery duct connected to the auxiliary hopper for discharging the raw material to the raw material storage room. The method according to claim 1,
The raw material is transported from the raw material storage room to a gripper crane and dropped into the main hopper. The raw material supply duct is connected to an outlet of the main hopper and is connected to a basket for receiving a raw material supplied to the main hopper,
Wherein the raw material recovery duct is connected to the outlet of the auxiliary hopper and receives the raw material input into the auxiliary hopper and discharges the raw material into the raw material storage chamber. The method according to claim 1,
An opening / closing device for supporting the main hopper and sensing the weight of the main hopper, an opening / closing device for opening / closing the outlet of the main hopper, and an opening / closing device for opening and closing the opening / closing device based on the weight detected by the weight detection device, Further comprising: a control unit for controlling the control unit. 3. The method according to claim 1 or 2,
Wherein the raw material supply duct and the raw material recovery duct are provided with a raw material transfer device for transferring the raw material. 5. The method of claim 4,
Wherein the raw material feeder includes a feed chain in which a bucket for containing the raw material is installed and which is orbital rotated by a driving force of a motor.
KR1020150066527A 2015-05-13 2015-05-13 Apparatus for inserting material KR101708688B1 (en)

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Application Number Priority Date Filing Date Title
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KR20160134899A true KR20160134899A (en) 2016-11-24
KR101708688B1 KR101708688B1 (en) 2017-02-22

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0169782B1 (en) * 1994-03-24 1999-01-15 파투찌 알렉산더, 토이플 아르민 Method of treating fine ore
KR20040005095A (en) * 2002-07-08 2004-01-16 주식회사 포스코 Apparatus for preventing the outflow of the mist using in the blending hopper
US20120028200A1 (en) * 2009-10-20 2012-02-02 James Kenneth Hicks Burnout of residual carbon in coal fly ash using air cyclones
KR101214822B1 (en) * 2012-07-09 2012-12-24 주식회사 한국종합기술 Apparatus for transferring the biomass fuel for mixed fuel burning

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0169782B1 (en) * 1994-03-24 1999-01-15 파투찌 알렉산더, 토이플 아르민 Method of treating fine ore
KR20040005095A (en) * 2002-07-08 2004-01-16 주식회사 포스코 Apparatus for preventing the outflow of the mist using in the blending hopper
US20120028200A1 (en) * 2009-10-20 2012-02-02 James Kenneth Hicks Burnout of residual carbon in coal fly ash using air cyclones
KR101214822B1 (en) * 2012-07-09 2012-12-24 주식회사 한국종합기술 Apparatus for transferring the biomass fuel for mixed fuel burning

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