KR101038551B1 - Apparatus for removing foreign substances of a belt conveyor - Google Patents

Abstract

PURPOSE: A foreign material removal apparatus for a belt conveyor is provided to remove foreign materials from the carrier belt part and return belt part of a belt conveyor simultaneously. CONSTITUTION: A foreign material removal apparatus for a belt conveyor comprises a pair of foreign material removing units(200), a lifting unit, a frame unit, and a control unit. The foreign material removing units are formed inside a closed loop type belt(20) and driven up and down to contact both inner opposite sides of the belt across a width direction. The lifting unit drives the foreign material removing units up and down. The frame unit supports the lifting unit inside the belt. The control unit controls the operation of the lifting unit.

Description

Apparatus for removing foreign substances of a belt conveyor}

The present invention relates to a foreign material removal device for a belt conveyor. In particular, the present invention relates to a foreign matter removal device for a belt conveyor that can easily remove foreign matters such as rainwater or scattering dust that are introduced into or adhered to an inner surface of a rotating belt in a belt conveyor.

In general, a belt conveyor is a transport facility for carrying a transport object on a belt that rotates in a caterpillar manner.

As shown in FIG. 1, a belt 20 applied to a general belt conveyor 10 is wound around a plurality of driving pulleys 30 and a driving roller 40 to form a closed curve. The belt 20 may be formed of various materials such as leather, rubber, fiber, plastic, etc. according to the kind of the conveyed material (M). (Here, FIG. 1 is a view schematically showing an example of use of a general belt conveyor.)

The belt conveyor 10 can be easily installed even if the installation place of the conveyed material M and the transport place are far apart or there is a difference in height because the installation structure is simple. The belt conveyor 10 having such a feature is widely used as a facility for transferring fuel and raw materials such as coke, raw coal, sintered coal, iron ore, etc. in the steelmaking process of steel mills.

In the belt conveyor 10, foreign matters F, such as rainwater and scattering dust, are introduced into the belt conveyor 10 by spraying to prevent the occurrence of rain or scattering dust during operation. Rainwater, scattering dust, and the like introduced into the belt conveyor 10 are attached or fixed to the inner surfaces S ₁ and S ₃ of the belt 20. Here, the inner surface (S ₁ , S ₃ ) of the belt 20 means a belt surface in contact with the plurality of drive pulley 30 and the drive roller 40, the outer surface (S ₂ ) of the belt ( ₂ ) Means a belt surface on which the conveyed material M is loaded, and the inner surfaces S ₁ and S ₃ of the belt 20 are divided into an upper inner surface S ₁ and a lower inner surface S ₃ . .)

In this way, the foreign matter F that is introduced into or adhered to the inner surfaces S ₁ and S ₃ of the belt 20 is fixed to the belt 20 and the driving pulley 30 during a driving operation of the belt conveyor 10. Or an obstacle to rotational drive between the drive rollers 40. That is, a slip phenomenon or a bounce phenomenon of the belt 20 is generated in the driving pulley 30 or the driving roller 40 to prevent normal operation conditions of the belt conveyor 10.

In order to solve the above problems, conventionally, a method of spraying a slip inhibitor to the drive pulley 30 or the drive roller 40 of the belt conveyor 10 was used. However, this method of spraying the anti-slip agent has a hassle that the repeated spraying operation has to be made because the removal effect of the foreign matter (F) is temporarily shown. In addition, since the injection operation of the anti-slip agent is made by hand, there is a problem that the work efficiency is low, causing a risk of a safety disaster.

On the other hand, the belt conveyor 10 of the related art was provided with a belt cleaner (not shown) for removing the foreign matter (F), such as rain water or fixing matter attached to the upper inner surface (S ₁ ) of the belt 20. The belt cleaner includes a tip or a scraper or the like provided to contact the upper inner surface S _{1 of the} belt 20. The belt 20 is rotated while the belt 20 is rotated by the driving pulley 30. The tip or scraper is in contact with the upper inner surface (S ₁ ) of the rain water or fixing matter attached to the belt 20 is removed.

By the way, in the conventional belt cleaner, the foreign material (F) by contacting the tip or scraper, etc. only in the belt portion (hereinafter referred to as the 'carrier belt 22 portion') located on the upper side of the driving pulley 30 and the driving roller 40. Was removed. That is, the foreign material F was removed for the upper inner surface S ₁ . Since the belt 20 has a closed curve shape, the foreign matter F removed from the carrier belt 22 portion is located at the lower portion of the driving pulley 30 and the driving roller 40 (hereinafter referred to as 'return belt 24'). ), And the foreign matter F dropped into the lower part of the belt 20 is reintroduced and reattached to the lower inner surface S ₃ of the belt 20, thereby reducing the removal effect of the foreign matter.

Therefore, in the related art, it is not possible to completely remove the foreign matters F and the like which hinder normal operation conditions of the belt conveyor 10. In other words, there is a problem in the operation such as the time required to transfer fuel, raw materials and the like is delayed. In addition, there is a problem in that the management cost required for the maintenance and repair of the equipment of the belt conveyor 10 is increased by foreign matters F, such as rainwater or scattering dust flowing into or fixed to the belt conveyor 10.

The present invention provides a debris removal device for a belt conveyor that can easily remove debris, such as rain water or scattering dust that is introduced into the inner surface of the belt to rotate in the belt conveyor.

The present invention provides a debris removal device for a belt conveyor that can simultaneously remove debris attached to both inner surfaces of the belt by driving a pair of contact plates up and down in the inner space of the belt to closely contact the carrier belt portion and the return belt portion. do.

The foreign material removal device for a belt conveyor according to an embodiment of the present invention is a device for removing foreign matter that is introduced into and attached to a rotating belt wound in a closed curve shape, and is provided in an inner space of the closed belt shape and has a width of the belt. A pair of debris removal units which are driven up and down so as to be in close contact with opposite inner surfaces of the belt across the direction, a lift drive unit which drives the pair of debris removal units up and down, and the lift drive unit in the inner space of the belt It includes a frame for supporting the control unit for controlling the driving of the lift drive unit.

According to an embodiment of the present invention, the foreign material removal device for the belt conveyor is automatically driven through remote control or sensor detection to prevent the occurrence of a safety hazard by manual labor.

In addition, it is possible to simultaneously remove foreign substances from both sides of the belt in the belt conveyor, that is, the carrier belt portion and the return belt portion. Therefore, it is possible to prevent reflow and reattachment of foreign matters, thereby improving the removal efficiency of the foreign matters.

In addition, it is possible to reduce the management cost required for the maintenance and repair of the belt conveyor according to the improvement of the foreign matter removal efficiency.

Therefore, the productivity of the transfer facility using a belt conveyor can be improved.

Hereinafter, with reference to the accompanying drawings will be described embodiments of the present invention; However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, only the embodiments are to make the disclosure of the present invention complete, the scope of the invention to those skilled in the art It is provided to inform you completely. Like numbers refer to like elements on the drawings.

Figure 2 is a perspective view showing a foreign material removal device for a belt conveyor according to an embodiment of the present invention, Figure 3 is a view showing a state in which the rain detection sensor is installed in the foreign material removal device for a belt conveyor shown in Figure 2, Figure 4 is a drive state diagram of the foreign matter removal apparatus for a belt conveyor according to an embodiment of the present invention.

2 to 4, the foreign material removing apparatus 100 for a belt conveyor according to an embodiment of the present invention is a closed curve on a plurality of drive pulleys 30 (see Fig. 1) and drive rollers (40; 40a, 40b) It is a device that removes foreign matter that is introduced into the belt 20 is wound in a shape and attached.

In one embodiment of the present invention, the foreign material removing apparatus 100 for the belt conveyor is provided _in the inner space (S _in ; see Fig. 1) of the belt 20 of the closed curve shape, the width direction (y direction of the belt 20) ) And a pair of foreign matter removal portion 200 which is driven up and down so as to be in close contact with each of the inner side surfaces (S ₁ , S ₃ ; see FIG. 1) facing the belt 20, and a pair of foreign matter removal portions ( Control unit for controlling the driving of the lifting and lowering drive unit 300 for driving the up and down 200, the frame unit 400 for supporting the lifting and lowering drive unit 300 _in the inner space (S _in ) of the belt 20. (Not shown).

On the other hand, the foreign material removal apparatus 100 for a belt conveyor according to the present embodiment may further include a rain detection sensor 510 for detecting rain water on one side of the frame portion 400. That is, the lift driver 300 may be automatically driven through the measurement of the rain detection sensor 510 without a driver's driving command (remote command) input to the controller. Here, the rain detection sensor 510 is provided to protrude on the upper side of the frame portion 400 so as not to be disturbed by other structures when the rain water is detected, a plurality may be installed.

For example, in the process of transferring the conveyed material using the belt conveyor 10 (see FIG. 1), when rainwater is detected by the rain detection sensor 510, the controller starts driving of the lifting driving unit 300 to display the belt conveyor ( 10) can remove foreign substances. In addition, if the rain water is no longer detected, the driving of the lift driver 300 may be stopped immediately or after a predetermined time.

The controller may include a keyboard, a keypad, and the like as an input means for receiving a driving command of an operator, and an output means such as a monitor for checking an input command.

The pair of foreign material removal unit 200 is driven up and down to be in close contact with both inner surfaces (S ₁ , S ₃ ) of the belt 20, foreign matter attached or fixed to the belt 20 by friction when the contact Drop out. In the present embodiment, the pair of foreign matter removing unit 200 is disposed below the first foreign matter removing unit 210 and the first foreign matter removing unit 210 in close contact with the upper inner surface S ₁ of the belt 20. It includes and the second foreign matter removing unit 220 in close contact with the lower inner surface (S ₃ ) of the belt (20).

In addition, the first foreign matter removing unit 210 and the second foreign matter removing unit 220 are interlocked in the up and down direction (z ₁ direction or z ₂ direction). For example, when the first foreign matter removing unit 210 is raised in the upper direction (z ₁ direction), the second foreign matter removing unit 220 is lowered in the lower direction (z ₂ direction), and the first foreign matter removing unit 210 is formed. ) Is lowered in the lower direction (z ₂ direction), the second foreign matter removing unit 220 is raised in the upper direction (z ₁ direction).

Here, each of the foreign matter removing unit 210, 220 is a horizontal bar (212, 222), both ends are provided in the lifting drive unit 300 so as to cross the width direction (y direction) of the belt 20, the belt 20 Fixing plates 214 and 224 protruding from the horizontal bars 212 and 222 so as to face one surface S ₁ or S ₃ which is in close contact among both inner surfaces S ₁ and S ₃ of) and the fixing plates 214 and 224. ) to the high side end is fixed, the amount the inside surface the other end (S _1, S ₃₎ in close contact from one surface (S _1, or comprises a contact plate (216, 226) made of a shape corresponding to the shape of the S ₃₎ do.

Here, the horizontal bar 212, the fixing plate 214, the contact plate 216 constituting the first foreign matter removing unit 210, the first horizontal bar 212, the first fixing plate 214, the first contact plate The horizontal bar 222, the fixing plate 224, and the contact plate 226 constituting the second foreign matter removing unit 220 are referred to as 216, the second horizontal bar 222, the second fixing plate 224, and the first 2 is called the contact plate (216).)

A plurality of drive rollers 40 (40a, 40b), which are installed to rotate the belt 20 having a closed curve shape in a caterpillar manner, are supported at both ends by roller support frames 42 (42a, 42b). The roller support frames 42; 42a and 42b are spaced apart from the upper side and the lower side along the extending longitudinal direction (z direction) of the pair of vertical frames 410; 410a and 410b provided in the frame part 400, respectively. Connected horizontally. At this time, the upper roller support frame 42a and the lower roller support frame 42b are connected to the carrier direction (x ₁ direction) and the return direction (x ₂ direction) of the belt 20, respectively. That is, the pair of vertical frames 410 are connected in opposite directions to each other.

On the other hand, the upper drive roller (40a) is composed of a multi-joint roller inclined to both sides, the belt 20 is wound in a "V" shape or "U" shape. Through this, it is possible to prevent the conveyed material is easily scattered or dropped out of the conveyed material during transport. In addition, the lower drive roller 40b is made of a cylindrical roller is rotated in a state where the belt 20 is a horizontal plane. Here, the portion of the belt 20 wound around the upper drive roller 40a is called a carrier belt portion or a transfer belt portion, and the portion of the belt 20 wound around the lower drive roller 40a is called a return belt portion or a recovery belt portion. do. That is, the conveyed material is carried on the carrier belt part, and the driving pulley 30 (see FIG. 1) is returned to pass through the return belt part.

In the present embodiment, since the lower surface of the upper driving roller 40a is formed in a “U” shape, the upper end of the first contact plate 216 also has a “U” shape correspondingly. In addition, since the upper surface of the lower driving roller 40b is flat, the lower end of the second contact plate 226 also has a planar shape corresponding thereto.

The first contact plate 216 and the second contact plate 226 are made of a hard rubber material to increase the adhesion between the inner surfaces S ₁ and S ₃ of the belt 20. Of course, if the degree of adhesion with the belt 20 can be maintained, it may be made of other materials.

The first contact plate 216 and the second contact plate 226 may be mounted to the first fixing plate 214 and the second fixing plate 224 by various methods such as a screw fastening method and a clip fastening method. In this embodiment, the fixing plates 214 and 224 are partially inserted into the contact plates 216 and 226, and the screws are penetrated through the partially inserted parts to fix the fixing plates 214 and 224 and the contact plates 216 and 226. Screw fastening was used.

The lift driver 300 transmits a driving force in a gear manner to drive the pair of foreign matter removal unit 200 up and down.

In this embodiment, the elevating drive unit 300 has a drive source 310 that provides a driving force _in the inner space S _{in of the} belt 20, and both ends thereof cross the width direction (y direction) of the belt 20. The frame portion 400 is installed horizontally on the pregnant part 400 and intersects with the power transmission rod 320 at both sides of the power transmission rod 320 and the belt 20 which mesh with the driving source 310 and rotate in the first gear system. Installed vertically), a pair of height adjusting rods 330 (340; 340, 350) for driving the pair of foreign matter removal units 200 up and down by engaging and rotating the power transmission rod 320 and the second gear system. Include.

In this embodiment, a drive motor is used as the drive source 310. The drive motor may freely change the rotation direction of the drive shaft 311 of the drive motor by the forward rotation R ₁ and the reverse rotation R ₂ . In addition, since the drive shaft 311 of the drive motor can be controlled to rotate at the correct rotation speed, the distance L ₁ and L _{2 at} which the pair of foreign matter removing units 200 and 210 and 220 are vertically driven can be accurately controlled. . On the other hand, the first bevel gear 312 is connected to the end of the drive shaft 311 of the drive motor.

The power transmission rod 320 is mounted to rotate freely between the pair of vertical frames 410 (410a, 410b) vertically facing each other on both sides of the belt 20 (R ₃ ). The center portion of the power transmission rod 320 is provided with a second bevel gear 322 engaged with the first bevel gear 312 coupled to the drive shaft 311 of the drive motor.

That is, when the drive motor in which the drive shaft 311 protrudes in the travel direction (x direction) of the belt 20 is rotated (R ₁ or R ₂ ), the direction crossing the travel direction (x direction) of the belt 20 ( The power transmission rod 320 extending in the y direction is rotated R _{3 in a} bevel gear manner.

Of course, in the present embodiment, the power transmission rod 420 is rotated by the bevel gear method, but as long as it can accurately control the rotation (R ₃ ) of the power transmission rod 320, the power transmission rod 320 may be applied to other methods. Of course, you can rotate).

On the other hand, the portions adjacent to both ends of the power transmission rod 320 is provided with worm gears (326, 327) that can transmit the rotational movement between the two axes perpendicularly meet in different planes.

The pair of height adjusting rods 330 (340, 350) are vertically supported to face each other in the pair of vertical frames (410; 410a, 410b). At this time, both ends are supported by the vertical frame 410 so that the pair of height adjustment rods 340 and 350 can also be freely rotated (R ₄ ).

The center portion of each of the height adjustment rod (340 or 350) is provided with worm wheels (342, 352) engaging the pair of worm gears (326, 327) provided in the power transmission rod (320). In addition, screw grooves 344 and 354 are formed on the outer circumferential surface along the longitudinal direction (z direction) of the height adjusting rods 340 or 350. At this time, the thread grooves 344 and 354 formed in the height adjusting rods 340 and 350 with the worm wheels 342 and 352 as the boundary are formed in the opposite direction.

On the other hand, the horizontal bar connection to slide up and down along the screw grooves (344, 354) on the upper and lower sides of the worm wheel (342, 352) is fixed to the center portion of the height adjustment rods (340, 350) to rotate (R ₄ ) Rings 345, 346; 355, 356 are provided.

That is, the worm wheels 343 and 352 meshed with the worm gears 326 and 327 by the rotation R ₃ of the power transmission rod 320 receive a driving force to rotate the pair of height adjusting rods 340 and 350. (R ₄ ). At this time, both ends of the pair of height adjustment rods (340, 350) is fixed to the frame portion 400, the horizontal bar connecting ring formed on the outer peripheral surface of the pair of height adjustment rods (340, 350) (345, 346; 355) , 356 are vertically driven around the worm wheels 342 and 352. Accordingly, the first horizontal bar 212 and the second horizontal bar 222 which are horizontally connected to the horizontal bar connection rings 345 and 346 and 355 and 356 are driven up and down.

Rotation of the rotation (R ₃₎ and a height adjustment rod 330, the rotation of the drive motor drive shaft 311, the forward rotation (R ₁₎ that the reverse rotation (R ₂₎ that the thus power transmission rod (320) to (R ₄ ) Direction is different.

For example, when the rotation of the drive shaft 311 of the drive motor is the forward rotation (R ₁ ), the horizontal bar connecting rings (345, 355) supporting both ends of the first horizontal bar 212 is raised, the second Horizontal bar connection rings 346 and 356 supporting both ends of the horizontal bar 222 are lowered. That is, the first contact plate 216 and the second contact plate 226 are in close contact with both inner surfaces S ₁ and S ₃ of the belt 20, respectively. At this time, foreign matter attached to or fixed to the belt 20 is removed by friction with the rotating belt 20.

On the other hand, when the rotation of the drive shaft 311 of the drive motor is the reverse rotation (R ₂ ), the horizontal bar connecting rings (345, 355) supporting both ends of the first horizontal bar 212 is lowered, the second horizontal bar Horizontal bar connecting rings 346 and 356 supporting both ends of 222 are raised. That is, the first contact plate 216 and the second contact plate 226 release the contact on both inner surfaces S ₁ and S ₃ of the belt 20.

By driving the pair of foreign matter removal unit 200 in the above-described driving manner up and down _in the inner space (S _in ) of the belt 20 can be easily removed foreign matter.

According to the present invention, the distances L ₁ and L _{2 at} which the pair of the foreign matter removing units 200 are vertically driven may be constantly determined according to the command value input to the controller. However, the first contact plate 216 and the second contact plate 226 made of a rubber material may be worn in the process of removing foreign substances, and thus may have a different size, or deformation may occur due to factors of the external environment. In this case, the contact plates 216 and 226 may not be in close contact with both inner surfaces S ₁ and S ₃ of the belt 20. That is, the foreign matter removal efficiency may decrease.

In order to solve the above difficulties, a pair of foreign matter removal unit 200 and a pair of height adjustment rods 330, that is, close to one side of the horizontal bar connection ring (345, 346; 355, 356) A sensor (not shown) may be further provided. By the proximity sensor, the degree of contact between the _first and second contact plates 216 and 226 on both inner surfaces S ₁ and S ₃ of the belt 20 can be checked. The contact plates 216 and 226 are replaced.

The foreign material removing apparatus 100 for a belt conveyor according to the embodiment of the present invention as described above may be provided with one or more on the belt conveyor 10 (see FIG. 1).

As described above, the foreign material removing apparatus for the belt conveyor according to the exemplary embodiment of the present invention may be automatically driven through remote control or sensor detection to prevent the occurrence of a safety hazard by manual labor.

In addition, it is possible to simultaneously remove foreign substances from both sides of the belt in the belt conveyor, that is, the carrier belt portion and the return belt portion. Therefore, it is possible to prevent reflow and reattachment of foreign matters, thereby improving the removal efficiency of the foreign matters.

In addition, it is possible to reduce the management cost required for the maintenance and repair of the belt conveyor according to the improvement of the foreign matter removal efficiency.

Therefore, the productivity of the transfer facility using a belt conveyor can be improved.

As mentioned above, although this invention was demonstrated with reference to the above-mentioned Example and an accompanying drawing, this invention is not limited to this, It is limited by the following claims. Therefore, it will be apparent to those skilled in the art that the present invention may be variously modified and modified without departing from the technical spirit of the following claims.

1 is a view schematically showing an example of use of a typical belt conveyor.

Figure 2 is a perspective view showing a foreign material removal apparatus for a belt conveyor according to an embodiment of the present invention.

3 is a view showing a state in which the rain detection sensor is installed in the debris removal device for the belt conveyor shown in FIG.

Figure 4 is a driving state of the foreign material removal apparatus for a belt conveyor according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

20: belt 40: driving roller

100: foreign material removal device 200: foreign material removal unit

210: first foreign matter removing unit 216: first contact plate

220: second foreign material removal unit 226: second contact plate

300: lift drive unit 310: drive source

320: power transmission rod 330: height adjustment rod

400: frame portion 510: rain detection sensor

Claims (8)

In the device for removing the foreign matter that is introduced into the rotating belt wound in a closed curve attached to, A pair of foreign material removal units provided in an inner space of the belt in a closed curve shape and vertically driven to be in close contact with opposite inner surfaces of the belt across the width direction of the belt; A lift drive unit configured to vertically drive the pair of foreign material removal units; A frame part which supports the lifting driving part in an inner space of the belt; And A control unit which controls driving of the lifting driving unit; Foreign material removal device for a belt conveyor comprising a. The method according to claim 1, One side of the frame portion is provided with a rain detection sensor for detecting rain water, the rain when the control unit for removing the foreign matter for the belt conveyor for driving the lifting drive unit automatically. The method according to claim 1, The pair of foreign material removal unit, A first foreign matter removing unit in close contact with the upper inner surface of the belt, and a second foreign matter removing unit in contact with the lower inner surface of the belt located under the first foreign matter removing unit, the first foreign matter removing unit And the second debris removing unit is a debris removal device for a belt conveyor that is interlocked in a direction opposite to up and down. The method according to claim 1, The foreign material removing unit, Horizontal bars provided at both ends of the elevating drive unit so as to cross the width direction of the belt; A fixing plate protruding from the horizontal bar so as to face one surface in close contact with the inner surfaces; An adhesion plate having one end fixed to the fixing plate, the other end having a shape corresponding to the shape of one surface of the two inner surfaces in close contact with each other; Foreign material removal device for a belt conveyor comprising a. The method according to claim 4, The contact plate is a foreign material removal device for a belt conveyor made of a hard rubber material. The method according to claim 1, The lifting drive unit, A driving source providing a driving force in an inner space of the belt; A power transmission rod having both ends horizontally installed in the frame portion so as to cross the width direction of the belt, the power transmission rod being engaged with the driving source in a first gear manner and rotating; And A pair of height adjusting rods installed vertically on the frame part to intersect the power transmission rods at both sides of the belt, and engaged and rotated by the second transmission method with the power transmission rods to drive the pair of foreign material removal units up and down; Foreign material removal device for a belt conveyor comprising a. The method according to claim 6, A bevel gear method is applied to the first gear method, and a foreign material removal device for a belt conveyor to which a worm gear method is applied to the second gear method. The method according to claim 6, Connection portion of the pair of debris removal unit and the pair of height adjustment rod is a foreign material removal device for a belt conveyor provided with a proximity sensor for sensing the vertical driving distance of the pair of debris removal unit.

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