KR101614870B1 - Apparatus for removing sediment - Google Patents

Abstract

The present invention relates to an apparatus to remove precipitates, comprising: a water collection container installed in an outer surface of a blast furnace; a plurality of load detection units installed to detect a load of the water collection container; and a precipitate removal unit to remove the precipitates precipitated in the water collection container based on a signal of the load detection units. Accordingly, the apparatus is capable of minimizing a decline in cooling efficiency of a steel surface; reducing negative effects on the operation, and significantly improving a performance of the equipment by detecting the precipitate condition inside the divided water collection container at an early stage; and remotely removing the same in an easy and rapid manner based on the accumulated amount of detected precipitates.

Description

Apparatus for removing sediment

The present invention relates to a precipitate removing apparatus. More particularly, the present invention relates to a sediment removing apparatus for removing precipitates deposited in a collection tank installed in a blast furnace.

Generally, pig iron is used as a material of a rolled material such as a cold rolled steel sheet manufactured in a steelworks. Such pig iron is heated to a high temperature of about 1500 degrees or more at a blast furnace 2, And exit through the exit to the outside.

Referring to FIG. 1, iron ore and coke used as a raw material are sequentially charged into the blast furnace 2, coke is burnt by high-temperature hot wind, and a reducing gas is generated and the iron ores are reduced and melted. The melted molten material (molten material + slag) is temporarily stored in the nodule. The melt is then discharged to the exit port and the melt and slag can be separated by the specific gravity difference.

The furnace bottom 3 of the blast furnace 2 is a place for temporarily storing the melt at 1500 DEG C and therefore is composed of the refractory 4 and the iron filaments 5. The cooling water W is used for protecting the refractory 4 and the iron filaments 5. [ Is dropped onto the surface of the screed (5) to cool the screed (5). The cooling water W cooled by the scoop 5 collects in the water collecting container 6 and moves to the water collecting tank 8 through the pipe 7.

However, since the cooling water W falls down in a state in which the water storage container 6 is open, the water is cooled and various kinds of foreign substances fall into the water storage container 6 or are mixed with the cooling water W And permeates into the water can 6 to settle. Further, the melt particles scattered when the outlet is closed by using a mud or the like can also be introduced into the collection container 6.

As a result, as shown in FIG. 2, a sediment S is precipitated in the lower part of the collection container 6.

Therefore, as a measure against the above-described phenomenon, the blast furnace 2 is stopped during blast furnace (2) regular repair and the spraying of the side walls is blocked.

3, when the cooling water in the water reservoir 6 is completely drained, the operator confirms the state of the precipitate S with the naked eye of the worker, and then the worker directly enters into the water reservoir 6 to remove the precipitate S It is removed by putting it in bags and bags.

However, the blast furnace 2 is shut down. However, the furnace portion 3 has a problem in that the high-temperature melt is stored and deterioration of the refractory and shortening of the service life of the furnace 3 are prevented during sprinkling of the side wall of the furnace portion 3 have.

In addition, since all work items for removing the precipitate (S) need to be visually confirmed by the operator and removal of the precipitate (S) is also manually performed from beginning to end, early detection of the precipitate (S) ) There is a problem that the risk of safety accidents and workload increases due to the removal work.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method and apparatus for detecting sediments deposited on the bottom of a cistern in a process of collecting and discharging the collected cisterns, And removing the sediment based on the sediment.

According to a preferred embodiment of the present invention, the above object is achieved by a water collecting container provided on an outer surface of a blast furnace. A plurality of load sensing parts installed to sense a load of the collection container; And a sediment removing unit for removing the sediment deposited on the collection container based on the signal of the load sensing unit.

The control unit may further include a controller for analyzing a signal of the load sensing unit and controlling the sediment removing unit to remove the sediment when the load change value of the collection tank reaches a predetermined load value.

Here, the water collection container may include a plurality of collection container units; And a flexible unit connection member provided between each of the collection container units, wherein the collection container unit is installed between the collection container member, the outer surface of the blind hole and the collection container member, and may include a flexible arc-shaped connecting member.

The load sensing unit may be at least two load cells disposed under each of the collection container units.

Wherein the load cell detects a load of each of the collection container units and sends a signal to the control unit, and the control unit analyzes the signal of the load cell to remove the deposit of the collection container unit having a predetermined load change value And the precipitate removing unit is controlled.

In addition, the sediment removing unit moves along the collection receptacle and removes the sediment.

The sediment removing unit may include: a rail installed along the collection tube; A conveyor portion having a basket installed along the conveyor belt and a lift portion for lifting one side; A support moving part installed between the rail and the conveyor part to move the conveyor part along the rail; And a storage unit installed at the other side of the conveyor unit and storing the sediment transferred by the conveyor unit.

The support moving unit may include a support unit installed to support the conveyor unit and a moving unit installed between the support unit and the rail to move the support unit. The moving unit includes a wheel guided and moved by the rail, And a motor for driving the wheels.

The conveyor unit may include a first conveyor unit for conveying the sediment by purging the sediment with a lifting unit for lifting one side and a first basket for pumping the sediment from the sump. And a second conveyor unit having a second basket for receiving the sediment from the first basket and moving the sediment to the storage unit, wherein each of the first basket and the second basket includes a first conveyor unit and a second conveyor unit, A plurality of conveyor belts are provided along a conveyor belt provided in each of the conveyor units.

Here, the elevating unit may include a hydraulic cylinder and a rod.

Meanwhile, the storage unit may include a storage tank main body; A discharge port provided at one side of the storage tank main body; A water drainage mesh installed at the discharge port to discharge only the cooling water; A level gauge provided in the reservoir body; And a gate for discharging the sediment to the gate according to a signal of the level gauge which senses a predetermined amount of sediment accumulated in the reservoir body.

The apparatus for removing sediments according to one preferred embodiment of the present invention having the above-described structure can detect the state of the internal sludge in the divided cisterns in an early stage and can easily and rapidly remove the sludge easily and remotely based on the detected accumulated sediment amount, It is possible to minimize the deterioration of the cooling efficiency of the blood, reduce the adverse effects on the operation, and significantly improve the facility performance.

That is, since the sediment removing device can remove the sediment even during the leaving operation, the productivity can be further improved.

Fig. 1 is a view showing a conventional collector pipe in a blast furnace,
FIG. 2 is a view showing a precipitate settled in the collection container of FIG. 1,
FIG. 3 is a view showing a conventional method of removing sediment in a collection container,
FIG. 4 is a plan view showing a collecting container of a sediment removing device according to a preferred embodiment of the present invention, FIG.
5 is a perspective view showing the area A in Fig. 4,
FIG. 6 is a conceptual view showing a sediment removing apparatus according to a preferred embodiment of the present invention,
7 is a view showing a first conveyor unit of the apparatus for removing sediments according to a preferred embodiment of the present invention,
8 is a view showing a second conveyor unit of the apparatus for removing sediments according to a preferred embodiment of the present invention,
9 is a view showing a storage unit of the apparatus for removing sediments according to a preferred embodiment of the present invention.

The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated and described in the drawings. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms including ordinal, such as second, first, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the second component may be referred to as a first component, and similarly, the first component may also be referred to as a second component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings, wherein like or corresponding elements are denoted by the same reference numerals, and redundant description thereof will be omitted.

1 and 4 to 9, an apparatus 1 for removing sediments according to one preferred embodiment of the present invention includes a collector 100 installed along an outer surface of a blast furnace 2, a collector 100 A sediment removing unit 300 for removing the precipitate S deposited on the collection container 100 based on a signal from the load sensing unit 200, And may include a control unit 400.

The water storage tank 100 serves to collect the cooling water W that has cooled the screed 5 and the cooling water W that has cooled the screed 5 collects in the water storage container 6 and the pipe 7 To the water collecting tank (8).

Referring to FIG. 4, the collecting container 100 may include a plurality of collecting container units 110 and a unit connecting member 120.

The collection receptacle unit 110 is provided on the outer circumferential surface of the scoop 5, and a unit connection member 120 is installed between the collection receptacle units 110.

The receptacle unit 110 may include a receptacle member 111 and a connecting member 112.

Here, the collection container member 111 may be formed of an inflexible material.

4 and 5, the connecting member 112 may be installed between the metal foil 5, which is the outer surface of the blast furnace 2, and the catchment cylinder member 111. [ That is, the connecting member 120 may be formed in a shape of a arc provided along the metal foil 5.

Since the connecting member 112 can be formed of a flexible material, it is possible to detect the load of the water receptacle 100 through the load sensing part 200 provided at the lower part of the water receptacle 100 Let's do it.

The unit connecting member 120 can be installed between the respective collection receptacle units 110, as shown in Figs.

The unit connecting member 120 may be formed of a flexible material. Therefore, the unit connecting member 120 can detect the load of the collecting container unit 110 through the load sensing unit 200.

That is, since the collection receptacle unit 110 is installed so as to be surrounded by the flexible connection member 112 and the unit connection member 120, the load sensing unit 200 can sense the load of each of the collection receptacle units 110 Can be detected.

Here, the connecting member 112 and the unit connecting member 120 may be made of a flexible steel plate made of steel.

The collection cans 100 may be divided into a plurality of pieces by a unit connecting member 120 installed between the plurality of collection cans 110 and the collection cans 110. [

Therefore, a flexible iron plate such as the connecting member 112 and the unit connecting member 120 is used as the rim of each of the collection cans 100 divided by the unit connecting member 120, Since each region is inclined by the load of the load sensing unit 200, the load can be precisely measured in each of the regions inclined by the load sensing unit 200.

The load sensing unit 200 may be installed to sense the load of the collection container 100. More specifically, the load sensing unit 200 may be installed at a lower portion of the collecting container unit 110 so that the load of each collecting container unit 110 can be detected.

Referring to FIG. 6, it is preferable that at least two load sensing units 200 are installed in the lower part of the collecting container unit 110. Here, the reservoir unit 110 shown in Fig. 6 is only partially shown in order to clarify the operation of the sediment removing apparatus 1. [

4, when at least two load sensing units 200 are installed in each of the collection container units 110, the deposition amount of the sediment S Can be detected accurately. The control unit 400 receives the signal from the load sensing unit 200 and removes the sediment S using the sediment removing unit 300.

However, when the collection receptacle 100 is divided into a large number of collection receptacle units 110, one load sensing unit 200 may be installed.

Here, the load sensing unit 200 may be a load cell.

Accordingly, the more the container 100 is divided into more than four container units 110, the higher the load measurement accuracy is.

The sediment removing unit 300 removes the precipitate S precipitated in the cans 100 by the control unit 400.

6 to 9, the sediment removing unit 300 includes a rail 310 installed to be spaced or attached along the collection container 100, a conveyor 320 for conveying the deposit S, A support moving part 350 installed between the rail 310 and the conveyor part 320 so as to move the conveyor part 320 along the rail 310 and a conveyor part 320 installed on one side of the conveyor part 320, And a storage unit 360 for temporarily storing the sediment S transferred by the sludge storage unit 360. [

The rail 310 guides the conveyor part 320 when the conveyor part 320 moves along the collection container 100. Any one of the rails 310 may be welded to the metal foil 5.

6, the rail 310 is shown as an example spaced apart from the catchment 100. However, the present invention is not limited thereto, and any one of the rails 310 may be installed on the side of the catchment 100 And the other one may be installed on the screed 5 to guide the conveyor part 320. FIG.

6 shows a technique of removing the sediment S in one region of the sump 100. The sludge removing device 1 moves along the sump 100 shown in Fig. It is obvious to a person skilled in the art to remove the precipitate S precipitated in any one of the entire region of the water bottle 100.

The conveyor unit 320 may include a first conveyor unit 330 and a second conveyor unit 340.

7, the first conveyor unit 330 includes a first frame 331, a first conveyor belt 332, a plurality of first baskets 333 installed along the first conveyor belt 332, At least two of the first conveyor belts 332 and the second conveyor belts 332 are provided on both inner sides of the first conveyor belt 332 so that the driving force of the elevating part 334, the first motor 335 and the first motor 335 can be transmitted to the first conveyor belt 332 1 < / RTI >

7, the first frame 331 includes a first conveyor belt 332, a plurality of first baskets 333 installed along the first conveyor belt 332, a lift portion 334, and the like Respectively. The first frame 331 is mounted on the support moving part 350 and moves according to the movement of the support moving part 350.

The first conveyor belt 332 is installed to be supported by the first frame 331 and the first pulley 336 installed at both inner ends of the first conveyor belt 332 is rotated by the first motor 335 So that a rotational motion is performed. Here, the first pulley 336 is rotatably installed on the first frame 331 using a bearing or the like, and rotates the first conveyor belt 332 by a frictional force.

The first pulley 336 installed adjacent to the collection receptacle 100 is raised and lowered by the lifting portion 334. As a result, one side of the first conveyor belt 332 is raised and lowered.

The plurality of first baskets 333 are installed along the first conveyor belt 332 and the sediment S precipitated in the collecting receptacle 100 during the rotation of the first conveyor belt 332 passes through the plurality of first baskets 332 333 and transported. At this time, the elevating portion 334 descends one side of the first conveyor belt 332 so that the precipitate S precipitated in the collection container 100 can be deposited. When the sediment S is removed, the elevating portion 334 raises one side of the first conveyor belt 332.

Here, the elevating portion 334 may include a hydraulic cylinder and a rod reciprocating linear motion by the hydraulic cylinder.

8, the second conveyor unit 340 includes a second frame 341, a second conveyor belt 342, a plurality of second baskets 343 installed along the second conveyor belt 342, At least two second pulleys 346 installed at the inner sides of the first conveyor belt 342 to transmit the driving force of the second motor 345 and the second motor 345 to the second conveyor belt 342 .

The second frame 341 is installed to support a second conveyor belt 342, a plurality of second baskets 343 installed along the second conveyor belt 342, and the like, as shown in FIG. The second frame 341 is installed on the support moving part 350 and moves according to the movement of the support moving part 350.

The second conveyor belt 342 is installed to be supported by the second frame 341 and the second pulley 346 installed at both inner ends of the second conveyor belt 342 is rotated by the second motor 345 So that a rotational motion is performed. Here, the second pulley 346 is rotatably installed on the second frame 341 using a bearing or the like, and rotates the second conveyor belt 342 by a frictional force.

The plurality of second baskets 343 are installed along the second conveyor belt 342 and transfer the precipitate S transferred according to the rotation of the first conveyor belt 332 to the storage unit 360.

The support moving part 350 is installed between the rail 310 and the conveyor part 320 so that the conveyor part 320 can move along the water receptacle 100. The support moving part 350 moves the conveyor part 320 to a position where the precipitate S should be removed by the signal of the controller 400. [

The support moving part 350 may include a support part 351 and a moving part 352.

The support portion 351 is installed between the conveyor portion 320 and the moving portion 352 so that the support portion 351 can move while supporting the conveyor portion 320.

The moving part 352 is provided between the supporting part 351 and the rail 310 and moves the supporting part 351. Here, the moving part 352 may include a wheel guided and moved by the rail 310 and a motor for driving the wheel.

9, the storage unit 360 for temporarily storing the sediment S transferred by the conveyor unit 320 includes a reservoir body 361, a reservoir body 361, and a support moving unit 350 A drainage port 363 provided at one side of the storage tank main body 361, a drainage network 364 provided at the discharge port 363, a level gauge 365 installed in the storage tank main body 361, And a gate 366.

The sediment S is transferred together with the cooling water W and temporarily stored in the reservoir body 361 so that only the cooling water W is discharged to the discharge port 363 using the water dropping network 364. [

When the sediment S is accumulated in the reservoir body 361, the sediment S is sensed by the level gauge 365 and the sediment S is discharged to the reservoir body 361 using the gate 366 when a predetermined amount is deposited . Here, the gate 366 can be controlled to open and close by a lever or the like.

 The control unit 400 is electrically connected to the load sensing unit 200 and the sediment removal unit 300 of the sediment control device 1 and receives a signal sent from the load sensing unit 200 to control the sediment removal unit 300 ).

More specifically, when a load change value of each of the collection container units 110 sensed by the load cell is detected and when a load variation value of any one of the collection container units 110 reaches a preset value, the control unit 400 Removes the sediment S of the collection receptacle unit 110 in which the load change value is detected by using the sediment removal unit 300. [

The control unit 400 is electrically connected to the level gauge 365. The control unit 400 informs the operator that the predetermined sediment S is accumulated in the reservoir body 361 in accordance with the signal of the level gauge 365, It can be recognized by sound.

In addition, the controller 400 may open the gate 366 to discharge the sediment S accumulated in the reservoir body 361 to the outside.

In summary, the apparatus 1 for removing sediments according to the preferred embodiment of the present invention detects the state of the internal sediment S of the divided cans 100 by using the load sensing unit 200, It is possible to remotely easily and quickly remove the accumulated sediment S based on the amount of accumulated sediment S, thereby minimizing deterioration of the cooling efficiency of the screed 5 and reducing the adverse effect on the operation and significantly improving the facility performance.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

1: sediment removal device 2: blast furnace
3: Root bottom part 5:
100: Collection receptacle 200: Load sensing part
300: Sediment removal unit 400:
S: Sediment W: Coolant

Claims (11)

A receptacle installed on the outer side of the blast furnace;
A plurality of load sensing parts installed to sense a load of the collection container;
A sediment removing unit moving along the collection receptacle and removing the sediment deposited in the collection receptacle;
And a control unit for analyzing the signal of each of the load sensing units and controlling the sediment removing unit,
The water collection container according to claim 1,
A plurality of collection receptacle units; And
And a flexible unit connecting member provided between each of the collection container units,
Wherein the water collecting container unit comprises:
And
And a flexible arc-shaped connecting member provided between the outer surface of the blast furnace and the collection container member,
Wherein the load sensing unit is provided as at least two load cells spaced apart from the bottom of each of the collection container units,
One of the at least two load cells detects a change in the load of the sediment and sends a signal to the control unit as the collector unit is tilted to one side by the load of the sediment,
The control unit analyzes the signal of the load cell to move the sediment removing unit to the position of the sediment deposited on the inclined side of the collection container unit when the load change value reaches a predetermined load value, Thereby removing the sediment. delete delete delete delete delete The method according to claim 1,
The sediment removing unit includes:
A rail installed along the collection container;
A conveyor portion having a basket installed along the conveyor belt and a lift portion for lifting one side;
A support moving part installed between the rail and the conveyor part to move the conveyor part along the rail; And
And a storage unit installed at the other side of the conveyor unit and storing the sediment transferred by the conveyor unit. 8. The method of claim 7,
The supporting /
And a moving part installed between the supporting part and the rail for moving the supporting part,
Wherein the moving unit includes a wheel guided and moved by the rail, and a motor driving the wheel. 8. The method of claim 7,
The conveyor portion
A first conveyor unit for conveying the sediment by purging the sediment, the elevation part having one side elevating and lowering the sediment, and a first basket for conveying the sediment from the collection cask; And
And a second conveyor unit having a second basket for receiving the sediment from the first basket and moving the sediment to the storage unit,
Wherein a plurality of the first basket and the second basket are installed along a conveyor belt provided in each of the first conveyor unit and the second conveyor unit. 10. The method of claim 9,
Wherein the elevating portion includes a hydraulic cylinder and a rod. 8. The method of claim 7,
Wherein,
A storage tank main body;
A discharge port provided at one side of the storage tank main body;
A water drainage network installed at the discharge port to discharge only cooling water;
A level gauge provided in the reservoir body; And
Gate,
Wherein the sediment is discharged to the gate according to a signal of the level gauge which senses a predetermined amount of sediment accumulated in the reservoir body.

Images