KR20030052071A - Apparatus for preventing the slip of the belt conveyor - Google Patents

Abstract

PURPOSE: A slip preventing apparatus of a belt conveyer is provided to prevent a slip of the belt conveyer by removing water and foreign materials adhered on a lagging surface of a driving pulley and a rear surface of the belt conveyer with injection of high pressure air. CONSTITUTION: A slip preventing apparatus of a belt conveyer comprises an air injection portion to inject high pressure air to a rear surface of the belt conveyer and a driving pulley and a guide portion to sense change of a serpentine width of the belt conveyer. The air injection portion has a nozzle line(28) installed along the width of the belt conveyer and supported by a support rod(23) on both sides. Injection nozzles(29) are installed to the nozzle line to inject high pressure air to the rear surface of the belt conveyer and a lagging surface of the driving pulley. An air line(26) is connected to the nozzle line to communicate air. A compressor(25) supplies high pressure air for the injection nozzle through the air line. Therefore, water and foreign materials on the rear surface of the belt conveyer and the lagging surface of the driving pulley are removed by high pressure air injected from injection nozzles.

Description

Apparatus for preventing the slip of the belt conveyor}

The present invention relates to a slip prevention device for preventing slip phenomenon between the belt conveyor and the driving pulley of the raw material processing equipment, and more particularly, the slip due to the water film phenomenon between the belt conveyor and the driving pulley during rain and water spraying operations. The present invention relates to a slip prevention device for a belt conveyor for preventing problems such as trouble and belt damage that may occur.

In general, belt conveyor equipment is used to transport large quantities of transport materials such as coal, which is a fuel used in steel mills, and iron ore, which is a raw material. However, as shown in FIG. 1, in the process of transporting the transport material by the belt conveyor 10, water or foreign matter, etc., on the rear surface of the belt conveyor 10 due to rain water incorporation, type of water, and specific gravity of the transport material. When the same attachment 14 is attached, a water film phenomenon occurs between the belt conveyor 10 and the driving pulley 11, and as a result, a slip phenomenon occurs, the belt conveyor 10 is damaged due to friction or the like, or an overload or the like. Problem occurs.

In order to solve this problem, in order to remove moisture and deposits on the rear part of the belt conveyor, as shown in FIG. 2, a cleaner 12 having a luba 13 in contact with the rear part of the belt conveyor 10 is installed at the upper end thereof. Was installed along the width direction of the belt conveyor 10. The lumbar 13 in contact with the rear part of the belt conveyor 10 was able to remove the moisture of the rear part of the belt conveyor while the belt conveyor 10 moved. However, as the wear of the luba 13 in contact with the belt conveyor rear part proceeds, the water removal efficiency decreases, and in this case, the deposit penetrates between the belt conveyor 10 and the driving pulley 11 so that the belt conveyor 10 Cause slippage.

Meanwhile, referring to FIGS. 3A and 3B, fasteners 18 are provided on both sides of the drive pulley 11 provided with the lagging surface 15, respectively, and the manila rope 16 is formed of the drive pulley 11. Connect fasteners 18 across the width. The friction coefficient of the belt conveyor 10 is increased by the manila rope 16 to prevent slippage between the belt conveyor 10 and the driving pulley 11. Reference numeral 17 is a flowchart block.

However, this drive pulley causes the following problems.

The manila rope 16 provided on the lagging surface 15 of the drive pulley 11 is subjected to pressure and friction applied between the lagging surface 15 of the drive pulley and the belt conveyor 10 when the drive pulley rotates for a predetermined time. It does not absorb the applied tension and is broken. At this time, the worker puts a new rope 16 between the drive pulley 11 and the belt conveyor 10 in order to replace the manila rope 16 in a narrow space while driving the belt conveyor 10 alone while driving the pulley ( 11) Since the rope 16 is fastened, the fastening work of the rope is very difficult and excessive work time is required, there is always a risk of safety accident.

The present invention has been made in order to solve the conventional problems as described above, there is a deposit such as moisture or foreign matter on the back of the belt conveyor for transporting a large amount of transport materials, such as coal, which is a fuel used in steel mills and iron ore as raw materials. Providing a slip prevention device for the belt conveyor that can be attached and eliminates problems such as belt damage and overload, which can be caused when the belt conveyor slips due to the water film phenomenon generated between the belt conveyor and the driving pulley by such an attachment. Its purpose is to.

1 is a view showing a state in which a slip phenomenon occurs between the belt conveyor and the drive pulley;

2 is a view illustrating a state in which a cleaner is installed on a rear surface of a belt conveyor according to a conventional embodiment;

Figure 3a is a view showing a drive pulley with a rope installed in accordance with another conventional embodiment, Figure 3b is a view showing a state in which the belt conveyor is mounted to the drive pulley of Figure 3a;

Figure 4 is a view showing a state in which the air spray nozzle is installed on the back of the belt conveyor in accordance with the present invention;

5 is a plan view of a slip prevention device for a belt conveyor according to the present invention;

Figure 6 is a side view of the slip prevention device for a belt conveyor according to the present invention.

<Description of Symbols for Major Parts of Drawings>

19: guide roller

20: rotating roller

21: Guide Bar

22: rotating shaft

23: support

25: compressor

26: air piping

28: nozzle piping

29: injection nozzle

In order to achieve the above object, according to the present invention, an attachment such as moisture or foreign matter is attached to the rear portion of the belt conveyor for transporting a large amount of transport materials such as coal, which is a fuel used in steel mills, and iron ore, which is a raw material, The device for preventing slipping of the belt conveyor which may be caused by the water film phenomenon between the belt conveyor and the driving pulley is equipped with a plurality of injection nozzles for injecting air toward the back of the belt conveyor and the driving pulley. The nozzle pipe is arranged along the width direction of the belt conveyor on the rear surface of the, characterized in that consisting of air supply means for supplying air to the air communication is connected to the nozzle pipe.

Hereinafter, exemplary embodiments of the present invention will be described with reference to FIGS. 4 to 6, and the same components are assigned the same reference numerals.

According to the present invention, an anti-slip device for a belt conveyor largely includes an air injection unit for injecting high pressure air into the back of the belt conveyor and a driving pulley, and the meander width of the belt conveyor such that the air injection unit moves along the width direction of the belt conveyor. It is made with a guide unit for detecting a change.

The guide portion has a rotating roller 20 that is in close contact with the back of the belt conveyor 10 to rotate. The rotating shaft of the rotary roller 20 is provided with a guide roller 19 installed vertically upward. The rotary roller 20 is composed of two rollers installed along the longitudinal direction of the belt conveyor 10. The end of the rotating shaft of the rotary roller 20 is supported by the support 23. The support 23 connects the rotating shaft with the nozzle pipe 28 described below.

The rotary shaft 22 of the rotary roller 20 installed adjacent to the drive pulley 11 in two rotary rollers protrudes outwards through the long hole formed in the upper part of the guide bar 21 installed vertically upward. do. The guide bar 21 is formed in a rectangular shape and is located at both outer sides of the belt conveyor 10.

Reference numeral 24 is a return roller for supporting the return belt conveyor, 31 is a drive motor for driving the drive pulley 11, 30 is a speed reducer for reducing the drive speed of the drive pulley 11 to be.

Therefore, when the side surface of the belt conveyor 10 in meandering operation is brought into contact with the guide roller 19, the guide roller 19 moves in one direction of the width direction of the belt conveyor 10, and in conjunction with the support 23 Moves in the same direction, the nozzle pipe 28 described below moves in the same direction.

On the other hand, the air injection unit has a nozzle pipe 28 is installed along the width direction of the belt conveyor 10, both sides are supported by the support 23. The nozzle pipe 28 is provided with a plurality of injection nozzles 29 for injecting high pressure air toward the back surface of the belt conveyor 10 and the lagging surface 15 of the drive pulley 11.

In addition, the air injection unit has a compressor 25 for supplying high pressure air to the injection nozzle 29 through the air pipe 26 and the air vessel 26 to enable air communication to the nozzle pipe 28.

The injection nozzle 29 is provided to the nozzle pipe 28 to inject air toward the outside from the nozzle pipe 28. On one side of the nozzle pipe 28 to which the support 23 is connected, a bellows 27 that is contractable in the longitudinal direction is attached. At this time, the bellows 27 compensates that the connection between the air pipe 26 and the nozzle pipe 28 is separated by the moving width guided by the guide roller 19 moving left and right by the belt conveyor 10. To act.

Hereinafter, the operation of the slip prevention device for a belt conveyor according to the present invention will be described.

Water such as water or rainy season rainwater sprayed on the transport to prevent the scattering of dust generated when transporting a large amount of transport such as fuel used in steel mills and iron ore as raw materials by the belt conveyor 10. When foreign matter enters the belt conveyor or foreign matter enters the belt conveyor during the transport operation of the transport material, the moisture or foreign matter adheres to the rear surface of the belt conveyor, causing slippage between the belt conveyor and the driving pulley 11.

At this time, the high pressure air is supplied to the nozzle pipe 28 via the air pipe 26 as the air compressor 25 installed adjacent to the drive pulley 11 is operated at the same time as the belt conveyor 10 is operated. Thereafter, the spray nozzle 29 is sprayed onto the back surface of the belt conveyor 10 and the lagging surface 15 of the drive pulley 11 to remove deposits attached to the back surface of the belt conveyor 10.

On the other hand, when the traveling state of the belt conveyor 10 is changed from time to time due to side damage and shape change or meandering of the belt conveyor 10, the side guide roller attached to the two rollers 20 connected to the support 23. Along the width direction of the belt conveyor 10, the roller 20 is connected to the rotating shaft 22 which protrudes through the long hole of the guide bar 21 while interfering with the side of the belt conveyor in which the traveling state changes. In conjunction with this, the nozzle pipe 28 connected to the support 23 moves in the same direction so that the injection nozzle 29 injects high pressure air only to the rear surface of the belt conveyor and the interference portion of the driving pulley. .

At this time, the injection nozzle 29 has a predetermined gradient in both directions toward the rear surface of the belt conveyor 10 and the driving pulley with respect to the nozzle pipe 28. Therefore, the high pressure air injected through the injection nozzle 29 moves the attachment 14 attached to the back surface of the belt conveyor 10 and the lagging surface 15 of the drive pulley 11 to the outside of the belt conveyor 10. Remove it by pushing it out. As a result, the deposit 14 removed by the injection of high pressure air does not flow back into the back surface of the belt conveyor 10 and the lagging surface 15 of the drive pulley 11.

As described above, the bellows 27 has the rotating roller 20 and the nozzle pipe 28 connected to the support 23 by the change of the traveling state of the belt conveyor 10 in the horizontal direction along the width direction of the belt conveyor. It acts to accommodate the movement of the movement of the connecting portion of the nozzle pipe 28 and the air pipe 26.

According to the present invention, by preventing the slip phenomenon of the belt conveyor by removing the deposits such as moisture or foreign matter adhering to the back of the belt conveyor and the lagging surface of the drive pulley by the injection of high pressure air, overload or loss of the belt conveyor Etc. can be prevented and as a result there is an effect of minimizing the downtime of the transport transport operation.

The foregoing is merely illustrative of the preferred embodiments of the present invention and those skilled in the art to which the present invention pertains recognize that modifications and variations can be made to the present invention without departing from the spirit and gist of the invention as set forth in the appended claims. shall.

Claims (3)

Attachments such as moisture or foreign matter are attached to the back of the belt conveyor that transports large quantities of transport materials such as coal, fuel, and iron ore, which are used in steel mills, and these attachments cause water film phenomenon between the belt conveyor and the driving pulley. In the device for preventing the slip phenomenon of the belt conveyor can be, A nozzle pipe which is provided with a plurality of injection nozzles for injecting air toward the rear surface of the belt conveyor and the driving pulley, and is disposed along the width direction of the belt conveyor on the rear surface of the belt conveyor; Slip preventing device for a belt conveyor, characterized in that made of an air supply means for supplying air is connected to the nozzle pipe air communication. The method of claim 1, And a driving means for moving the nozzle pipe along a width direction of the belt conveyor in response to a change in the progress of the belt conveyor due to meandering. The method of claim 2, The driving means supports a support shaft installed along the width direction of the belt conveyor on the rear surface of the belt conveyor, a guide roller installed vertically upwardly on the support shaft so as to contact the side surface of the belt conveyor, and both ends of the support shaft. And a support bar connecting the support shaft and the nozzle pipe, wherein the support shaft moves in the width direction of the belt conveyor by a force applied to the guide roller in contact with the side of the meandering belt conveyor. Thus, the nozzle pipe is slip prevention device for a belt conveyor, characterized in that to move along the width direction of the belt conveyor.