KR101440317B1 - Distribute chute changing apparatus - Google Patents

Abstract

A dispense suit replacement apparatus is disclosed. According to an aspect of the present invention, there is provided a dispensing chute replacement apparatus comprising: a moving vehicle unit provided movably; A disassembly main body rotatably mounted on the moving vehicle part; And a disassembling operation part provided on the disassembling main body part in a longitudinal direction so as to be elastically stretchable and having a fastening part for replacing the dispense chute provided on the furnace at one side thereof so that the worker directly climbs the furnace, It is possible to automatically perform the replacement work of the distribution chute, thereby preventing a safety accident occurring during the replacement work of the distribution chute. In addition, the present embodiment can easily and quickly perform the replacement work of the distribution chute, thereby preventing the production delay caused by the replacement of the distribution chute, thereby contributing to the improvement of the overall productivity.

Description

{DISTRIBUTE CHUTE CHANGING APPARATUS}

The present invention relates to a dispensing chute replacement apparatus, and more particularly, to an improved dispense chute replacement apparatus capable of facilitating a replacement operation of a dispense chute provided to change the dispensing direction of a charge by rotation.

Generally, in a steel mill furnace, a furnace is provided with a distribution chute for uniform distribution of raw materials.

The dispense chute is provided rotatably within the furnace and is provided to dispense the raw material by rotation upon loading of the raw material. Such a distribution chute is exposed to a high temperature environment by a furnace, so that corrosion or wear progress due to thermal damage or the like, and other smooth functions are sometimes not provided.

Accordingly, conventionally, a manhole is provided on one side of the furnace for replacing the distribution chute, and the distribution chute is maintained or replaced with the manhole opened.

To this end, in the prior art, a scaffold or replacement jig for securing a working space at the upper part of the furnace was installed, and about four chain blocks were installed in a hoist provided at the upper part of the work area. The chain block, the manhole and the distribution chute are connected to disassemble, dismantle and assemble.

Thus, conventionally, when the maintenance or replacement of the dispense chute is performed, the worker performs a complaint work, which may cause an unexpected situation such as a fall, etc., and it takes a long time for replacement and maintenance due to difficulty of work, The amount of outgoing light is reduced, which causes a decrease in productivity.

An embodiment of the present invention provides a dispensing suit replacing apparatus which can automatically perform a replacing operation of a dispensing suit to prevent a safety accident occurring during a replacing operation of the dispense suit, .

According to an aspect of the present invention, there is provided a dispensing chute replacement apparatus comprising: a moving vehicle unit provided movably; A disassembly main body rotatably mounted on the moving vehicle part; And a disassembling operation portion provided on the disassembling body portion in a longitudinal direction so as to be elastically stretchable and having a fastener for replacing a dispense chute provided in the furnace at one side thereof, A front and rear moving wheels or rotating wheels provided on one side of the receiving section for supporting a load according to the elongation and for forward and backward movement or rotational movement and a pair of front and rear moving wheels or rotating wheels, And further comprising a mobile wheel grounding variable unit for adjusting the height so that one is grounded.
According to another aspect of the present invention, there is provided a dispensing chute replacement apparatus comprising: a moving vehicle unit movably provided; A disassembly main body rotatably mounted on the moving vehicle part; And a disassembling operation portion provided on the disassembling body portion in a longitudinal direction so as to be elastically stretchable and having a fastener for replacing a dispense chute provided in the furnace at one side thereof, And a support portion for supporting a load according to the elongation, and the support portion includes a rotation support type mobile wheel that rotates in conjunction with forward / backward movement or rotational movement.
According to another aspect of the present invention, there is provided a dispensing chute replacement apparatus comprising: a moving vehicle unit movably provided; A disassembly main body rotatably mounted on the moving vehicle part; And a disassembling operation part provided on the disassembling main body part in a longitudinal direction so as to be elastically stretchable and having a fastening part for replacing a dispense chute provided on a furnace at one side thereof, And is provided with a foldable structure so as to be stretchable and includes a boom frame and a second actuator connected to stretch and operate the boom frame.
According to another aspect of the present invention, there is provided a dispensing chute replacement apparatus comprising: a moving vehicle unit movably provided; A disassembly main body rotatably mounted on the moving vehicle part; And a disassembling operation portion provided on the disassembling body portion in a longitudinal direction so as to be elastically stretchable and having a fastener for replacing a dispense chute provided on the furnace at one side thereof, And a weight balance unit for holding the weight balance unit.
According to another aspect of the present invention, there is provided a dispensing chute replacement apparatus comprising: a moving vehicle unit movably provided; A disassembly main body rotatably mounted on the moving vehicle part; And a disassembling operation portion provided on the disassembling body portion in a longitudinal direction so as to be able to be retracted and extended, the disassembling operation portion including a fastening portion for replacing a dispensing chute provided on the furnace at one side thereof, The distributing chute is seated and fixed via a replacement jig provided corresponding to the discharge chute.
Preferably, the disassembly body portion may be provided with a height adjusting portion including a first actuator for adjusting the height of the disassembling operation portion.
In addition, the disassembly body portion may include a receiving portion extending forward and supporting a load corresponding to the extension of the disassembling operation portion.

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In an embodiment of the present invention, the operator does not need to go directly to the blast furnace to perform the distribution chute operation, and can automatically perform the replacement operation of the distribution chute, thereby preventing a safety accident occurring during the replacement operation of the distribution chute. In addition, the present embodiment can easily and quickly perform the replacement work of the distribution chute, thereby preventing the production delay caused by the replacement of the distribution chute, thereby contributing to the improvement of the overall productivity.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view of a furnace provided with a distribution chute.
2 is a perspective view of a dispensing suit replacement apparatus in accordance with an embodiment of the present invention;
3 is a side view of a dispense chute replacement device in accordance with an embodiment of the present invention.
4 is a plan view of a dispense chute replacement device in accordance with an embodiment of the present invention.
5 is a perspective view of a dispense chute replaced by a dispense chute replacement device in accordance with an embodiment of the present invention;
FIG. 6 to FIG. 10 are a side view sequentially showing a process of replacing a dispense chute according to an embodiment of the present invention; FIG.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. The shape and the size of the elements in the drawings may be exaggerated for clarity and the same elements are denoted by the same reference numerals in the drawings.

1 is a sectional view showing a furnace provided with a distribution chute. FIG. 2 is a perspective view of a dispensing suit replacing apparatus according to an embodiment of the present invention, FIG. 3 is a side view of a dispensing suit replacing apparatus according to an embodiment of the present invention, and FIG. And FIG. 5 is a perspective view of a dispense chute replaced by a dispense chute replacement device in accordance with an embodiment of the present invention.

Referring to Figures 1-5, the dispense chute replacement apparatus 100 of the present embodiment can be provided to withdraw and move the dispense chute 20 for replacement or repair of the dispense chute provided in the furnace 1.

Referring to Fig. 1, a raw material charging facility 10 for charging a raw material is provided on the furnace 1.

The raw material charging equipment 10 is provided with a furnace hopper 12 in which raw materials to be charged are stored and an upper gate 14 for controlling the supply of raw materials such as iron ore and cokes supplied from the conveyor belt 30 is provided on the furnace hopper 12, Is provided.

When the supply of the raw material is completed, the upper gate 14 is closed and the interior thereof is raised to the same pressure as the internal pressure of the blast furnace 1, and then the lower gate 16 is opened. ) Falls into the blast furnace.

At this time, the raw materials to be charged into the blast furnace 1 are charged in a state of being separated by the distribution chute 20, and the distribution chute 20 is rotated 360 degrees, The raw material can be evenly distributed from the inner wall of the blast furnace to the center portion.

The distribution chute 20 is exposed to the high-temperature and high-pressure environment of the blast furnace, and thus needs to be replaced or repaired. To this end, the replacement chute replacement apparatus 100 of the present embodiment is used to replace the distribution chute 20 .

The distribution shoe replacement apparatus 100 of the present embodiment may include a moving vehicle section 110 provided movably so as to be adjacent to the blast furnace 1.

The furnace 1 is a large structure having a large overall size and is provided with a work space P for the upper work or the like of the blast furnace 1 and the distribution chute replacement apparatus 100 of this embodiment uses the moving vehicle section 110 And can be located adjacent to the blast furnace (1).

For example, the moving vehicle section 110 includes a vehicle body 112 including a driving section such as a motor, and the vehicle body 112 is provided with a wheel section 112 for moving the moving vehicle section 110 as it is rotated by the driving section, (114) may be provided. Also, in this embodiment, the wheel portion 114 may be provided as a wheel or the like, and may be provided as a caterpillar device 114, for example, a caterpillar to prevent stable operation and slip.

The dismounting body part 130 may be provided on the moving vehicle part 110 and the disassembling operation part 150 having the fastening part 160 for replacing the dispensing chute 20 may be provided on the disassembling body part 130. [ ) May be provided.

In this embodiment, the disassembling main body portion 130 is rotatably provided to the moving vehicle portion 110 so as to withdraw the distribution chute 20 from the furnace 1 or the like, . For this purpose, a swivel unit 120 may be provided between the moving vehicle unit 110 and the disassembly body unit 130.

Also, the disassembling operation part 150 can be provided in the disassembling main body part 130 so as to be stretchable in the longitudinal direction. Therefore, the disassembling operation part 150 is located adjacent to the moving vehicle part 110 and the disassembling body part 130, and then enters the furnace 1 to fasten the dispense chute 20, The distribution chute 20 can be taken out of the blast furnace 1.

In addition, the disassembly main body 130 may be provided with a height adjusting portion including a first actuator 132 for adjusting the height of the disassembling operation portion 150. The first actuator 132 may include a cylinder 133 and an actuating rod 134 provided to the cylinder 133 so as to be retractable and extendable to the cylinder 133. The cylinder 133 may be provided with a supply pressure A hydraulic pump (not shown)

One end of the cylinder 133 may be rotatably mounted on one side of the disassembling main body 130 and the end of the operating rod 134 provided on the cylinder 133 may be disassembled And may be rotatably installed in the housing 150. The first actuator 132 can adjust the height of the dismounting operation part 150 in association with expansion and contraction of the operation rod 134 by the fluid pressure supplied by the hydraulic pump.

Meanwhile, the disassembly main body 130 may include a receiving portion 140 for supporting the load so as to prevent the load from being directed forward or the like in accordance with the extension of the disassembling operation portion 150.

Here, the receiving portion 140 may be provided to extend forward from one side of the disassembling body portion 130, and the load of the disassembling body portion 130 can be stably supported as the end portion is grounded. Preferably, the receiving portion 140 may be provided at a predetermined angle inclined from the front side to the side so as to correspond to the rotation of the disassembling body portion 130 and the like.

The front and rear moving wheels 142 or the rotating wheel 144 may be provided at one side of the receiving portion 140 for stable grounding and support when the moving vehicle 110 moves back and forth or when the disassembling body 130 rotates. have.

Here, the front and rear moving wheels 142 can be provided rotatably in the forward and backward directions corresponding to the back and forth movement of the moving vehicle unit 110. [ That is, in the present embodiment, since the rotation of the front and rear mobile wheel 142 is restricted in the forward and backward directions, the rotation of the disassembling main body 130 can not guide the movement of the receiving unit 140 at the same time, The rotation driving wheel 144 rotatable in a direction corresponding to the rotating direction when the disassembling main body 130 is rotated can be provided on the main body 140. [

Preferably, the receiving portion 140 is provided with a corresponding one of the front and rear moving wheels 142 and 144 corresponding to the back and forth movement of the moving vehicle portion 110 or the rotational movement of the disassembling body portion 130 It is possible to provide a mobile wheel ground varying unit 146 for the mobile wheel.

The mobile wheel earthing variable unit 146 is provided between the front and rear mobile wheel 142 or the rotating mobile wheel 144 in the receiving portion 140 and is configured such that either the front or rear mobile wheel 142 or the rotating mobile wheel 144 is grounded As shown in FIG.

To this end, the mobile wheel earth-changing unit 146 may include an actuator (not shown) that is expanded and contracted by hydraulic pressure or the like.

In the meantime, in the present embodiment, it is described that the receiving portion 140 supports the forward and backward movement or the rotational movement by the front and rear mobile wheel 142 and the rotary mobile wheel 144, but the structure for supporting the receiving portion 140 is not limited Do not. For example, the pedestal 140 may be provided with one moving wheel, and the moving wheel may be provided as a rotatably supporting moving wheel that rotates in conjunction with forward and backward movement or rotational movement. That is, the rotation supporting type mobile wheel may be provided so that the rotation direction is changed in conjunction with the back and forth movement or the rotation movement of the receiving portion 140.

Also, in this embodiment, the disassembling operation part 150 may include a boom stand 152 rotatably provided on one side of the disassembling body part 130. Such a boom stand 152 may be provided with a stretchable folding structure, and the boom stand 152 provided so as to be stretchable may be a tele boom structure.

For example, the disassembling operation part 150 may include a second actuator (not shown) linked to extend and operate the boom stand 152. Here, the second actuator may be provided in a configuration of a cylinder, an operating rod and a hydraulic pump.

In this disassembling operation part 150, the operating rod is expanded and contracted by the hydraulic pressure supplied to the cylinder in accordance with the operation of the hydraulic pump in the second actuator, and the boom block 152 associated therewith can be expanded and contracted.

In the meantime, in the present embodiment, the distribution chute replacement apparatus 100 is described as supporting the load, which is changed when the boom stand 152 of the dismount operation section 150 is expanded or contracted, by the receiving section 140, And a weight balance unit for maintaining the balance of the load in association with the operation of the weight balance unit.

This weight balance unit is provided to move in connection with the operation of the disassembling operation part 150 and includes a frame structure extending in the direction opposite to the extending direction of the disassembling operation part 150 for this purpose, The weight balance unit moves and the load balance can be adjusted.

In addition, in this embodiment, the disassembling operation part 150 may be provided with a fastener 160 for engaging with the dispensing chute 20. The fastener 160 can be provided at an end of the disassembling operation part 150 so as to be adjustable by an actuator, that is, a hydraulic cylinder 163 and an operation rod 164 associated therewith.

Preferably, the fastening tool 160 may be provided with a replacement jig 170 for seating and fixing the dispensing chute 20.

The replacement jig 170 includes a rear connection portion that is connected to the upper portion of the upper connection portion at one side of the upper connection portion and is bent downward from the rear of the upper connection portion to support the rear surface of the distribution chute 20, And a lower connection portion for supporting the lower side of the chute 20. As such, the replacement jig 170 may be formed to surround the rear and lower sides of the dispense chute 20, and the overall shape may be provided in a 'C' shape.

The operation of the distribution shoe replacing apparatus 100 of the present embodiment provided as described above will be described as follows.

6 to 10 are side views sequentially illustrating a process of replacing the dispense chute according to an embodiment of the present invention.

6, when the replacement of the dispense chute 20 of the furnace 1 is required, the dispense chute replacement apparatus 100 of this embodiment is moved to the work area P adjacent to the furnace 1 .

That is, the distribution shoe replacement apparatus 100 moves by rotating the drive wheel 114 of the moving vehicle section 110, that is, the caterpillar apparatus 114. At this time, the front and rear mobile wheel 142 and the rotary mobile wheel 144 provided in the receiving portion 140 are lifted by the mobile wheel earthing varying unit 146, and thus do not contact the working area P.

7, when the distribution chute replacement apparatus 100 is adjacent to the blast furnace 1, the hatch of the blast furnace 1 is opened, the boom stand 152 of the disassembling operation section 150 is extended, To the replacement jig 170.

At this time, the height adjusting device 132 of the disassembling main body 130 adjusts the height so that the boom stand 152 of the disassembling operation part 150 is aligned with the replacement jig 170, To adjust the position.

Since the dismounting body portion 130 is lifted forward as the boom stand 152 of the dismounting operation portion 150 is extended to the front of the dismounting operation portion 150, Thereby grounding the front and rear moving wheels 142 in the working space P.

8, when the dispensing chute 20 is fully seated in the replacement jig 170, the fastening member such as a pin for fixing the blast furnace 1 and the dispensing chute 20 is removed and the dispensing chute 20 Is separated from the furnace 1. At this time, the distribution chute 20 is separated from the blast furnace 1 while lowering the height of the float 152 of the disassembling operation part 150.

Then, as shown in Fig. 9, the boom stand 152 of the dismounting operation part 150 is contracted and the dispensing chute 20 is taken out from the blast furnace 1.

10, when the distribution chute 20 is removed from the blast furnace 1, the front and rear moving wheels 142 of the moving vehicle unit 110 and the receiving unit 140 are grounded to the working space P The safe area of the work space P remote from the furnace 1 is moved backward.

The rotating and moving wheel 144 is grounded and rotated in the state in which the front and rear moving wheels 142 of the moving vehicle unit 110 and the receiving unit 140 are raised, ) To the lungs of the lungs.

On the other hand, after the distribution chute replacement apparatus 100 mounts the new distribution chute 20 to the replacement jig 170, the new distribution chute 20 is transferred to the blast furnace 1 in the reverse order of the withdrawal of the new distribution chute 20 Can be mounted.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents. It will be clear to those who have knowledge.

1: furnace 10: raw material charging facility
12: open hopper 14: upper gate
16: bottom gate 20: distribution chute
30: conveyor belt 100: dispense chute replacement device
110: moving vehicle part 112: vehicle body
114: wheel part (endless track device) 120: swiveling unit
130: disassembly body 132: first actuator
133: cylinder 134: working rod
140: receiving portion 142:
144: rotating mobile wheel 146: mobile wheel ground changing unit
150: disassembly operation part 152:
160: fastener 163: hydraulic cylinder
164: working load 170: replacement jig

Claims (8)

A moving vehicle section provided movably; A disassembly main body rotatably mounted on the moving vehicle part; And a disassembling operation portion provided on the disassembly body portion in a longitudinal direction so as to be retractable and provided with a fastener for replacing the dispense chute provided on the furnace at one side,
The disassembly body portion includes a receiving portion extending forward and supporting a load corresponding to the extension of the disassembling operation portion,
A front and rear moving or rotating wheel provided on one side of the receiving portion for forward and backward movement or rotational movement,
Further comprising a mobile wheel earthing variable unit for adjusting the height so that either the front or rear mobile wheel or the rotational mobile wheel is grounded in association with the movement of the disassembly body.
A moving vehicle section provided movably; A disassembly main body rotatably mounted on the moving vehicle part; And a disassembling operation portion provided on the disassembly body portion in a longitudinal direction so as to be retractable and provided with a fastener for replacing the dispense chute provided on the furnace at one side,
The disassembly body portion includes a receiving portion extending forward and supporting a load corresponding to the extension of the disassembling operation portion,
Wherein the receiving portion includes a rotation supporting type mobile wheel rotated in conjunction with forward and backward movement or rotational movement.
A moving vehicle section provided movably; A disassembly main body rotatably mounted on the moving vehicle part; And a disassembling operation portion provided on the disassembly body portion in a longitudinal direction so as to be retractable and provided with a fastener for replacing the dispense chute provided on the furnace at one side,
The disassembling operation portion
A boom bar rotatably provided on one side of the dismantling body and provided in a folded structure so as to be retractable;
And a second actuator coupled to cause the boom bar to expand and contract.
A moving vehicle section provided movably; A disassembly main body rotatably mounted on the moving vehicle part; And a disassembling operation portion provided on the disassembly body portion in a longitudinal direction so as to be retractable and provided with a fastener for replacing the dispense chute provided on the furnace at one side,
And a weight balance unit that moves in association with the disassembling operation unit and maintains a load balance.
A moving vehicle section provided movably; A disassembly main body rotatably mounted on the moving vehicle part; And a disassembling operation portion provided on the disassembly body portion in a longitudinal direction so as to be retractable and provided with a fastener for replacing the dispense chute provided on the furnace at one side,
The disassembling operation portion
And the distribution chute is seated on the fastener through a replacement jig provided corresponding to the distribution chute.
6. The disassembly main body unit according to any one of claims 1 to 5,
And a height adjustment unit including a first actuator for adjusting the height of the main body in association with the disassembly operation unit.
The apparatus according to any one of claims 3 to 5, wherein the disassembly body portion includes a support portion extending forward and supporting a load corresponding to extension of the disassembly operation portion. delete

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