KR102176340B1 - Apparatus for charging raw material in sintering machine - Google Patents

Abstract

In order to prevent uneven flow of blended raw materials in the process of removing the adhesion light to the chute, a chute installed in the raw material supply unit to guide the discharged raw material to the sintering machine cart, and the adhesion light attached to the chute is removed. Including a removal unit to remove, the removal unit is fixedly installed on the facility and the material charging device of the sintering machine bogie including a scraper to scrape off the attached light in contact with the chute and a driving unit to move the chute with respect to the scraper. to provide.

Description

Raw material loading device of sintering machine cart {APPARATUS FOR CHARGING RAW MATERIAL IN SINTERING MACHINE}

Disclosed is a raw material charging device for a sintering machine bogie capable of removing adhering light from a chute.

The sintering machine is the main facility of the sintering plant that produces sinter ore, the main raw material of the blast furnace. The blended raw materials are discharged from the hopper and charged into the sintering machine cart that moves in a caterpillar form. As the sintering machine cart loaded with the blended material passes the lower part of the ignition furnace, the surface of the blended material loaded on the cart is ignited. After igniting the blended raw materials as described above, the sintering process proceeds while the bogie is driven to the light distribution unit, and the sintered ore is crushed in a crusher and discharged.

The blended material is discharged from the hopper by the drum feeder and charged on the bogie through the chute. The chute is disposed in an inclined manner to uniformly load the blended material discharged from the drum feeder on the lower cart, and may be formed in a square plate structure with low friction.

Since the blended material contains moisture and has viscosity, the blended material slowly adheres to the chute in the process of flowing down through the chute. If blended raw materials are attached to the chute, smooth flow of blended raw materials decreases, and there is a problem that the blended raw materials are unevenly loaded on the cart. Accordingly, it is necessary to remove the raw material adhering to the chute.

Accordingly, a scraper was provided in the chute, and the scraper was moved along the chute to remove the adhered raw material. However, in the case of such a conventional structure, as the scraper removes the adhering light while moving along the chute, there is a problem that the charging of the blended material is temporarily interfered by the scraper. Therefore, there is a problem that the blending material is unevenly charged in the chute width direction while the flow of the blended material is obstructed by the scraper.

Provides a raw material loading device for a sintering machine bogie that can prevent uneven flow of blended raw materials in the process of removing light adhering to the chute.

In the process of scraping the chute, a raw material loading device for a sintering machine bogie is provided to prevent interference between the scraper and the blended raw material.

The charging device of this embodiment may include a chute installed in the raw material supply unit to guide the discharged raw material to the sintering machine cart, and a removal unit installed on the chute to remove adhesion light attached to the chute.

The removal unit may include a scraper having a fixed position on the facility and contacting the chute to scrape off the attached light, and a driving unit that moves the chute with respect to the scraper.

Two of the scrapers may be disposed at intervals.

The spacing of the scrapers may correspond to the length of the sintering machine bogie in the width direction.

The chute may be formed relatively larger than the length of the sintering machine bogie in the width direction.

The driving unit may include a female screw hole formed through the chute, a transfer screw shaft screwed into the female screw hole to reciprocate the chute, and a drive motor connected to the transfer screw shaft to rotate the transfer screw shaft forward and backward.

The driving unit may further include a guide hole spaced apart from the female screw hole and formed in parallel with the female screw hole, and a guide bar inserted into the guide hole to guide the chute.

The driving unit may further include a control unit for controlling driving of the driving motor.

The control unit may include a limit switch that is spaced apart from both tip ends along the movement direction of the chute to detect the tip of the chute, and a controller that applies a control signal to the driving motor according to the detection signal of the limit switch.

According to the present embodiment as described above, unlike the structure in which the scraper is moved with respect to the conventional fixed chute, by moving the chute with respect to the fixed scraper to remove the adhesion light of the chute, the scraper and the compounding material in the process of removing the adhesion light It is possible to prevent interference between the liver.

Accordingly, the blended raw material descending along the chute flows smoothly without being disturbed by the scraper, so that it can be uniformly loaded in the cart.

1 is a schematic view showing a raw material charging device of a sintering machine bogie according to the present embodiment.
2 is a schematic view showing a chute movement configuration of the raw material charging device of the sintering machine bogie according to the present embodiment.
3 is a schematic view for explaining the operation of the raw material charging device of the sintering machine bogie according to the present embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement the present invention. As those of ordinary skill in the art to which the present invention pertains can be easily understood, the embodiments to be described later may be modified in various forms without departing from the concept and scope of the present invention. As far as possible, the same or similar parts are indicated using the same reference numerals in the drawings.

The terminology used below is only for referring to specific embodiments, and is not intended to limit the present invention. Singular forms as used herein also include plural forms unless the phrases clearly indicate the opposite. The meaning of “comprising” as used in the specification specifies a specific characteristic, region, integer, step, action, element and/or component, and other specific characteristic, region, integer, step, action, element, component and/or group It does not exclude the existence or addition of

All terms including technical and scientific terms used below have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. The terms defined in the dictionary are additionally interpreted as having a meaning consistent with the related technical literature and the presently disclosed content, and are not interpreted in an ideal or very formal meaning unless defined.

1 and 2 show a raw material charging device of the sintering machine bogie according to the present embodiment.

As shown in FIG. 1, the sintering apparatus 100 includes a plurality of sintering machine bogies 10 and a raw material supply unit 20 disposed on the sintering machine bogies 10 to supply raw materials to the sintering machine bogies. I can. In addition, although not shown, the sintering device is an ignition furnace for igniting the upper surface of the raw material, a plurality of windboxes continuously disposed under the sinterer cart to sinter the raw material by suctioning air into the lower part of the sintering machine cart, and the sintered ore A crusher or the like may be further provided for processing.

The sintering machine bogie 100 has a structure in which a plurality of bogies are continuously combined, and proceeds in a caterpillar shape along a rail, so that the processes of loading, sintering, and light distribution of blended materials are repeatedly performed.

A raw material supply unit 20 for charging the blended raw materials into the inside of the sintering machine cart 10 is disposed at the upper side of the inlet along the traveling direction of the sintering machine cart 10. The raw material supply unit 20 is a surge hopper 22 that is loaded and discharged to the bottom of the mixed raw material, a drum feeder 24 disposed at the lower end of the surge hopper 22 to discharge the mixed raw material, and the mixed raw material discharged through the drum feeder. It may include an inclined chute 30 that guides to the sintering machine bogie 10.

Accordingly, the blended raw material contained in the surge hopper 22 is continuously loaded on the sintering machine bogie 10 that is moved down the chute 30 and flows down the chute 30.

The chute 30 is disposed below the exit side of the dream feeder 24. The chute 30 is disposed obliquely to guide the blended raw material discharged from the drum feeder 24 to the sintering machine bogie 10 below.

The sintering apparatus may further include a removal unit installed on the chute 30 to remove the adherent light attached to the chute 30.

The removal unit of this embodiment may include a scraper 40 that is fixedly installed on the facility and scrapes off the attached light in contact with the chute 30, and a driving unit that moves the chute 30 with respect to the scraper 40. have.

Accordingly, the removal unit of the present embodiment moves the chute 30 with respect to the fixed scraper 40 to remove the light attached to the chute 30. Therefore, it is possible to prevent interference between the scraper 40 and the blended material in the process of removing the adhesion light. In contrast, in the case of the conventional structure, the scraper is moved with respect to the fixed chute, so that interference occurs between the blended material moving along the chute and the scraper crossing the chute.

In this embodiment, the chute 30 is moved in the width direction perpendicular to the traveling direction of the sintering machine bogie 10, that is, in the y-axis direction in FIG. 2. For convenience of description below, the width direction may mean the y-axis direction in FIG. 2.

The scraper 40 extends from the surface of the chute 30 along the traveling direction of the sintering machine bogie 10, and the lower end forms a sharp edge and adheres to the chute 30. The scraper 40 is fixedly installed on one side of the equipment constituting the sintering apparatus 100. Accordingly, as the chute 30 is moved with respect to the fixed scraper 40, adhesion light is removed by the scraper 40.

As shown in FIG. 2, two scrapers 40 may be disposed at intervals in the width direction. The gap L between the scrapers 40 may be formed according to the length of the sintering machine bogie 10 in the width direction. For example, the gap L between the scrapers may be formed equal to the length of the sintering machine in the width direction. Accordingly, the blended raw material discharged from the drum feeder 24 to the chute 30 is charged into the sintering machine bogie 10 along the chute 30 between the two scrapers 40. The two scrapers 40 are sufficiently spaced apart by the width of the sintering machine bogie 10, so that the charged raw material does not interfere with the scraper 40 and uniformly flows down in the width direction of the sintering machine bogie 10 to reach the bogie 10. It is charged.

In this embodiment, even in the process of removing the adhering light by scraping the surface of the chute 30 with the scraper 40, the scraper 40 maintains a fixed state, so that there is no change in its position or interval. Accordingly, the charged raw material can be continuously flowed down uniformly along the chute 30 between the two scrapers 40.

The drive unit is for moving the chute 30 with respect to the scraper 40, and is a female screw hole 32 formed through the chute 30, and is screwed into the female screw hole 32 to move the chute 30 back and forth. It may include a screw shaft 34 and a drive motor 36 connected to the transfer screw shaft 34 to rotate the transfer screw shaft 34 forward and backward.

In this embodiment, the chute 30 moves in the width direction of the sintering machine bogie 10. Even if the chute 30 is moved in the width direction of the sintering machine bogie 10, it must be continuously positioned between the scrapers 40 to serve as the chute 30. Accordingly, the chute 30 may have a length in the width direction that is relatively larger than the length in the width direction of the sintering machine bogie 10, that is, a distance between the two scrapers 40. The length of the chute 30 in the width direction may be sufficiently extended to the outside after passing through the two scrapers 40. The length of the chute 30 extending outside the scraper 40 may be greater than or equal to the interval L between the scrapers 40. Accordingly, even when the area of the chute 30 between the scrapers 40 is completely out of the one side scraper 40 as the scraper 40 moves, the area of the outer chute 30 moves between the two scrapers 40 and the chute 30 You will be able to continue to play the role.

A female screw hole 32 is formed through the chute 30 in the width direction, and a transfer screw shaft 34 is screwed into the female screw hole 32. Accordingly, when the transfer screw shaft 34 rotates in one direction, the chute 30 moves along the width direction along the transfer screw shaft 34. Accordingly, as the chute 30 relatively passes with respect to the fixed scraper 40, the adhesion light is removed.

In order for the chute 30 to move smoothly and accurately, a guide hole 38 spaced apart from the female screw hole 32 and formed in parallel may be further formed in the chute 30. The guide bar 39 is slidably coupled to the guide hole 38. Accordingly, the chute 30 is guided along the guide bar 39 via the guide hole 38 so that it can move stably.

The chute 30 reciprocates according to the forward and reverse rotation of the driving motor 36 and removes the adhesion light on the surface. Accordingly, the driving unit may further include a control unit that controls the driving of the driving motor 36 for reciprocating movement of the chute 30.

As shown in Fig. 3, the control unit is spaced apart from both front ends along the moving direction of the chute 30 to detect the front ends of the chute 30, the limit switch 50, and the detection signal of the limit switch 50 Accordingly, a controller 52 that applies a control signal to the driving motor 36 may be included.

The limit switch 50 may have, for example, a structure that outputs a signal according to whether or not it contacts the tip of the suit 30. The limit switch 50 is installed at a maximum movement limit position in the width direction of the chute 30 to detect movement of the chute 30. As shown in FIG. 3, the limit switch 50 is disposed at both front ends in the width direction of the chute 30 to detect movement of the chute 30 in both directions.

When the chute 30 moves and is detected by the limit switch 50 on one side, the chute 30 has moved to the limit position, and the controller 52 controls the driving motor 36 according to the signal of the limit switch 50. Thus, it stops or rotates in the opposite direction. Accordingly, it is possible to reciprocate the chute 30 in both directions while the drive motor 36 rotates forward and backward according to the signal of the limit switch 50.

Although the exemplary embodiments of the present invention have been shown and described as described above, various modifications and other embodiments may be made by those skilled in the art. These modifications and other embodiments are all considered and included in the appended claims, and will not depart from the true spirit and scope of the present invention.

10: sintering machine balance 20: raw material supply unit
22: surge hopper 24: drum feeder
30: suit 32: female screw hole
34: feed screw shaft 36: drive motor
38: guide hole 39: guide bar
40: scraper 50: limit switch
52: controller

Claims (8)

A chute installed on the raw material supply unit to guide the discharged raw material to the sintering machine cart, and a removal unit installed on the chute to remove the adhering light attached to the chute,
The removal unit includes a scraper that has a fixed position on the facility and is in contact with the chute to scrape off the attached light, and a driving unit that moves the chute with respect to the scraper,
The driving part
A female screw hole formed through the chute,
A transfer screw shaft that is screwed into the female screw hole to reciprocate the chute,
A guide hole spaced apart from the female screw hole and formed through the chute in parallel with the female screw hole, and
A guide bar extending parallel to the transfer screw shaft and inserted into the guide hole to guide the chute
Including,
Two of the scrapers are arranged at an interval so that the raw material is guided only between the scrapers,
The chute is formed larger than the gap between the two scrapers so that the length of the chute extending to the outside of the scraper is greater than the gap between the scrapers, and both ends of the chute in the width direction are located between the scrapers even when the chute moves reciprocally. Raw material loading device of the sintering machine bogie that does not work delete The method of claim 1,
The spacing of the scrapers corresponds to the length of the sintering machine bogie in the width direction. The method of claim 1,
The chute is a raw material charging device of the sintering machine bogie formed relatively larger than the width direction length of the sintering machine bogie. The method of claim 1,
The driving unit is connected to the transfer screw shaft, the raw material charging device of the sintering machine bogie further comprising a drive motor for rotating the transfer screw shaft forward and backward. delete The method of claim 5,
The raw material charging device of the sintering machine bogie further comprising a control unit for controlling the driving of the drive motor. The method of claim 7,
The control unit of the sintering machine bogie including a limit switch that is spaced apart from both tip ends along the movement direction of the chute to detect the tip of the chute, and a controller that applies a control signal to the driving motor according to the detection signal of the limit switch. Raw material charging device.

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