JPH0825616B2 - Adhesion scraping and collecting device for belt conveyor - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is arranged in the middle of a traveling path of a belt conveyor for conveying loose ore such as sinter or iron ore, other ore, coal, earth and sand, sand grains or limestone. The present invention relates to a device for scraping and collecting adhering materials for a belt conveyor, which scrapes off powdery or granular material adhering to the reverse side belt surface of the conveyor belt and returns it to the conveyor surface of the belt.

[0002]

2. Description of the Related Art Powdered or granular material such as powder ore adheres to the belt surface of a belt conveyor for conveying bulk materials of this kind, and this is dropped or scattered by the turning or vibration of the belt conveyor to significantly deteriorate the environment around the conveyor. In order to do so, conventionally, a scraping plate that is in sliding contact with the belt surface is provided in the vicinity of the turning position of the belt conveyor, and the powder particles that adhere to the belt surface are scraped by the scraping plate, and the hopper at the conveyor conveying end is scraped. An apparatus adapted to be loaded with a conveyed product has been put into practical use.

[0003]

However, it is not possible to sufficiently remove the particulate matter adhering to the belt surface only by the scraping operation of only the turning portion by the scraping plate of the conventional device as described above. The powder particles that have remained on the belt surface will fall off due to vibration and the like when the belt surface on the reversal side passes over the return roller. Therefore, conventionally, there has been a problem that a labor-intensive work and a labor-intensive work for removing the fallen powdery granular material are required.

In order to omit such an operation, for example, after substantially scraping off the powdery particles adhering to the belt surface by the scraping device, a reverse side is provided by a shower device provided immediately after the scraping device. By spraying water on the belt surface, a method of cleaning the conveyor belt that removes the powder and particulate matter remaining on the belt surface has been partially implemented, but in this case, the water flow injected from the shower device Since it is sprayed on the belt surface, there is a problem in that the cost required for post-treatment of shower water after removal of deposits is considerably high.

The present invention has been made in order to solve such a problem, and the deposits remaining on the belt conveyor after the deposits on the belt conveyor are removed by a well-known scraping device or the like. It is an object of the present invention to provide a device for scraping and collecting deposits for a belt conveyor, which is capable of scraping off and removing the scraps and returning them to the conveyor belt.

[0006]

In order to achieve the above object, an apparatus for scraping and collecting deposits for a belt conveyor according to the present invention is, as shown in the drawings corresponding to the embodiments, an intermediate portion of a traveling path of the belt conveyor 1. , A rotary ring body 13 surrounded so as to pass through the belt conveyor 1, a plurality of bucket portions 19, 19, ... 19 are formed on the inner peripheral surface of the rotary ring body 13, and the belt conveyor 1 A scraping member that is in sliding contact with the belt surface in the space between the reversing side belt surface 4b and the rotating ring body 13.
It is characterized by a structure in which 14 is arranged so as to cross the belt surface 4b.

In the above structure, the bucket portions 19, 19 ... 19 are provided by providing means for intermittently applying an impact to the rotary ring body 13 when the rotary ring body 13 is driven to rotate.
The deposits remaining inside can be effectively returned to the conveyor side belt surface 4a of the belt conveyor 1.

Further, the driving means of the rotary ring body 13 roll-supports the rotary ring body 13 on a pair of rolling wheels 22 and 23 arranged with a distance between axes shorter than the diameter thereof. The rotary ring body 13 can be configured to rotate in accordance with the drive rotation of one of the rolling wheels 22 and 23, and in the one having such a rotary drive means, as a means for imparting an impact to the rotary ring body 13. , Either one of the rolling wheels 22 and 23 is in contact with the rotary ring body 13 by a circumferential cam 27a provided on the outer peripheral surface having a radial step, or is in rolling contact with the rolling wheels 22 and 23. Rotating ring body
The cam projection 38 may be formed on the outer peripheral surface of the step 13 and has a step in the radial direction.

Further, the scraping member 14 has a rotating shaft 32 arranged below the reversing side belt surface 4b in a direction traversing the reversing side belt surface 4b. A plurality of brush bundles 33, 33, 33 having a length extending over each other are arranged at predetermined intervals radially in the circumferential direction and with a gap 33a between adjacent brush bundles 33, 33. Is desirable.

[0010]

The scraping member 14 provided so as to traverse the reverse side belt surface 4b of the belt conveyor 1 is brought into sliding contact with the belt surface as the belt conveyor 1 circulates and scrapes off the deposits on the belt surface. . In this case, since the gap 33a exists between the brush bundles 33, 33 of the scraping member 14, the scraped powder and particulate deposits do not remain in the brush bundles 33, 33, 33 and the gap 33a.
Escape to and fall by gravity action, and the rotating ring body 13
, 19 are sequentially dropped and collected. When the deposits collected in the bucket portions 19, 19, ... 19 reach the upper position of the belt conveyor 1 by the rotational driving of the rotary ring body 13, they fall on the conveyor side belt surface 4a of the conveyor 1 due to gravity. It is conveyed together with the conveyed object B.

When the rotating ring body 13 rotates, the rotating ring body 13 rises due to the rotational displacement of the circumferential cam 27a due to the driving rotation of the drive wheels 22, 22, and then suddenly drops, and vibration due to the impact at that time occurs. Then, the deposits in the bucket portions 19, 19 ... 19 are peeled off and returned to the transport side belt surface 4a without remaining.

[0012]

Embodiments of the present invention will now be described in detail with reference to the drawings. In FIG. 1, reference numeral 1 denotes a belt conveyor, which is wound around an endless belt 4 made of rubber or polyamide synthetic fiber between a drive pulley 2 and a tail pulley 3 and is driven by a drive pulley 2 to rotate. The endless belt 4 has a well-known structure in which the belt surface 4a is rotated so as to move from the tail pulley 3 side to the drive pulley 2 side. The endless belt 4 is appropriately tensioned by a tension pulley 5 arranged in the vicinity of the drive pulley 2. And the transport-side belt surface 4a is in contact with the idler 6, 6 ...
6 is supported in a curved state in which the central portion hangs down, and the reversing side belt surface 4b is supported horizontally by the return rollers 7, 7 ... It is configured to be sent to the next-stage conveyor 9 arranged below the exit end of the hopper 8 via the hopper 8 which is opened facing the above.

Reference numeral 10 denotes a scraping device according to a known technique, which is arranged near the turning position of the endless belt 4.
Is one in which one row or two rows of front and rear scraping plates 11, 11 which are in sliding contact with the reversing side belt surface 4b are arranged across the reversing side belt surface 4b.

In FIGS. 2 to 4, reference numeral 12 is a belt conveyor deposit scraping and collecting apparatus according to this embodiment, which is surrounded by the conveyor 1 in the middle of the traveling path of the conveyor 1. The rotating ring body 13 arranged in
And a scraping member slidingly contacting the reverse side belt surface 4b of the conveyor 1.
14 and.

The rotating ring body 13 is integrally provided with a peripheral bottom wall 16 over the entire circumference between the outer peripheral portions of a pair of ring-shaped side walls 15, 15 facing each other in an upright posture, and a peripheral groove 17 is formed on the inner peripheral surface side. 18 are formed in the circumferential groove 17, and a large number of partition plates 18, 18, ... 18 are attached at regular intervals, and a large number of bucket portions 19, 18 are provided between the partition plates 18, 18 ,.
19 are defined and the outer peripheral edges of both ring-shaped side walls 15 and 15 are made to project slightly from the outer peripheral surface of the peripheral bottom wall 16 to form flange portions 20 and 20.

On the other hand, below the conveyor 1, a frame 21 made of framed steel or the like is arranged, and a pair of rolling wheels 22 and 23 are attached to both sides of the frame 21. The distance between the shaft centers of these rolling wheels 22, 23 is set slightly shorter than the diameter of the rotating ring body 13, and one of the rolling wheels 22, 22 is reduced as a driving wheel via a belt-pulley transmission mechanism 24. It is linked to a drive device 25 such as a motor. By mounting the rotating ring body 13 on each of the pair of rolling wheels 22 and 23, the outer peripheral surface of the peripheral bottom wall 16 of the rotating ring body 13 is
Rolling contact with 22 and 23, each rolling wheel by the flange portions 20 and 20 on both sides
It is rotatably supported in a state where it is regulated to be separated from 22, 23,
The driving rotation of the driving wheels 22, 22 causes the other rolling wheels 23, 23 to rotate in conjunction with the rotating ring body 13 as driven wheels, whereby the rotating ring body 13 is shown in FIG. 2 at a slow speed of, for example, about 2 rpm. It is driven to rotate in the direction of arrow a.

As shown in FIGS. 5 and 6, each drive wheel is
A cam member 27 is attached to the outer peripheral surface of a boss member 26 provided coaxially with the drive shaft 22a by bolts 28, 28, and is detachably attached to the unit 22. That is, the boss member 26 has a cut circle shape in which a part of a circle is cut out, and the cutout portion is provided with a cam attachment portion 26a having a step and an outer periphery of the cut circle portion, and the cam attachment portion 26a is provided with the bolt 28, A cam member 27 having a diameter larger than that of the boss member 26 is fastened by 28. The cam member 27 is formed in a shape that substantially follows the outer shapes of the boss member 26 and the cam attachment portion 26a, and the outer periphery of the cam member 27 serves as the circumferential cam 27a and serves as a rotating ring body.
By rollingly contacting the outer peripheral surface of 13 to raise the rotating ring body 13 and then rapidly dropping it, a constant impact is given to the entire rotating ring body 13. Incidentally, when the inner diameter D0 of the rotary ring body 13 is preferably 2000 mm, the diameter D1 of the boss member 26 of the drive wheels 22, 22 is about 200 mm, and the cam mounting portion 26a.
The level difference H is about 20 mm. Further, the cam member 27 may be provided on the driven wheel 23 side, but in this case, the rotating ring body 13
Since there is a risk that the driven wheel 23 will idle due to resistance when the vehicle rides over the cam surface, design considerations are required.

Reference numerals 29 and 29 designate a belt surface 4a on the conveying side and a rotary ring body.
A mounting frame 3 which is a guide member remodeled into a space S1 between 13 and has lower end portions 29a, 29a disposed on both sides of the conveyor 1, respectively.
The intermediate portions 29b and 29b are supported by 0 and 30, and the bucket portions 19 and 19 are
... Bent along the opening surface of 19 and the curved portion
It is provided with guide surfaces 29c, 29c extending from the upper ends of 29b, 29b toward the conveyor belt surface 4a in an inclined manner, and the curved portion 29b of the guide member 29 on the front side in the rotation direction of the rotating ring body 13 is formed.
Is elastically brought into close contact with the opening of the rotary ring body 13 to prevent the powdery and granular deposits collected in the bucket portions 19, 19 ... 19 from falling. Also, the rotating ring body
Each of the partition plates 18, 18 ... 18 of 13 has an opening end side so as not to spill out until reaching the front guide surfaces 29c, 29c of the guide members 29, 29 due to the rotation of the rotary ring body 13. It is attached in a tilted state so as to be located forward of the bottom wall 16 side in the rotational direction.

The scraping member 14 is arranged in the space S2 between the reversing belt surface 4b of the conveyor 1 and the rotary ring body 13. The scraping member 14 in this embodiment is the mounting frame 30,
A rotating shaft 32 is mounted between the bearing members 31, 31 hung from 30 in a direction traversing the belt surface 4b below the reversing side belt surface 4b, and a straight line is provided on the rotating shaft 32 along its length direction. A plurality of brush bundles 33, 33, 33 arranged in a line are attached at predetermined intervals in a radial direction in the circumferential direction with a gap 33a between adjacent brush bundles 33, 33. In addition, brush bundle 33, 3
The arrangement of 3, 33 on the outer peripheral surface of the rotary shaft 32 can be set appropriately, but it is considered that it is optimal to prevent clogging of the brush bundles 33, 33, 33 if they are arranged in three equal positions as shown in the figure. To be Further, as the configuration of the brush bundle 33, various ones can be applied, but among them, a large number of fine wires made of stainless steel formed in a fine corrugation in the length direction, densely arranged in the same direction, It is excellent in elastic restoring force and abrasion resistance and can be suitably used.

A scraping mechanism including the scraping member 14 as described above.
34 is a scraping member that connects the rotating shaft 32 to a driving device 36 such as a reduction motor through a belt / pulley transmission mechanism 35.
14 is rotationally driven in the direction c opposite to the traveling direction b of the reversing side belt surface 4b of the conveyor 1 shown in FIG.
The endless belt 4 at a position opposite to the endless belt 4 with the endless belt 4 interposed therebetween.
The receiving roller 37 for receiving the
It is rotatably supported between the two.

Next, the operation of the above-mentioned structure will be explained. Immediately after the endless belt 4 carrying the continuously supplied conveyed material B is turned around the drive pulley 2, the endless belt 4 is attached to the belt surface by a well-known scraping device 10. After substantially removing the kimono, the adhering matter remaining on the belt surface is scraped off by the scraping and collecting apparatus 12 of the present invention while returning to the tail pulley 3 side.

That is, the endless belt 4 which returns to the tail pulley 3 side and travels has its back surface rollingly contacted with the receiving roller 37 to prevent upward escape, and in this state, scraping is performed at a position directly below the receiving roller 37. Each brush bundle 33, 33, 33 of the member 14 has a scraping mechanism 34.
Is rotated in the reverse direction c with respect to the belt running direction b, and rolls in a pressure contact state. As a result, the dust particles remaining on the reverse side belt surface 4b of the belt 4 are scraped off. Is scraped off by. By this scraping operation, the granular material enters between the fine lines constituting each brush bundle 33, but in this embodiment, since each brush bundle 33 has wide gaps 33a on both sides, While the scraping member 14 is rotating, most of the powdery particles are discharged to the outside from the gap 33a, which effectively prevents clogging of the brush bundle 33.

The deposit scraped off from the reversing side belt surface 4b falls by gravity, falls into the bucket portions 19, 19 ... 19 of the rotating rotary ring body 13, and is collected. It rises with the rotation of the rotary ring body 13. Partition plate 1 for partitioning each bucket portion 19, 19 ... 19 according to this rise
The positions of 18, 18 ... 18 are gradually displaced, and when reaching the opening between the guide members 29, 29, the buckets 19, 19 ... , 19
The adhering matter in 19 is guided to the front guide surface of the guide members 29, 29, whereby the adhering matter collected in the bucket portions 19, 19 ... 19 passes through the guide members 29, 29 and the conveyor side belt surface of the conveyor 1 Returned to 4a.

Further, the rotary ring body 13 driven and rotated by the drive wheels 22, 22 rides on the circumferential cams 27a, 27a provided on the drive wheels 22, 22, and then the stepped portion of the circumferential cam 27a. By suddenly falling at, the impact is periodically received and the impact causes the rotating ring body 13 to vibrate.
The powder and particulate matter adhering to the bottom and the like inside 19, 19, ... 19 hardly separates and remains in the bucket portions 19, 19 ,.
It is returned to the conveyor side belt surface 4a.

8 to 10 show another embodiment of the device of the present invention. Although the basic construction of the rotary ring body 13 and its rotary driving means in this embodiment is common to the above embodiment. The configurations of the impact applying means for the rotating ring body 13 and the scraping mechanism 34 are different. That is, the impact imparting means of this embodiment projects cam projections 38, 38 ... 38 having steps in the radial direction on the outer peripheral surface of the rotary ring body 13 at appropriate intervals in the circumferential direction. 38 is applied to the rotating ring body 13 by a sudden drop when the step portion passes through the rolling wheels 22 and 23 after the rolling contact of the rolling wheels 22 and 23 on the rolling wheels 38 and 38.

Further, in the scraping mechanism 34, a fixed shaft 39 is mounted between bearing members 31, 31 hung from the mounting frames 30, 30 and slidably brought into contact with the reversing belt surface 4b on the fixed shaft 39. A plurality of scraping members 14 are mounted in a line so as to cross the belt surface, and a receiving member for receiving the belt 4 from the back surface side at a position facing the scraping member 14 with the belt 4 interposed therebetween. A stop roller 37 is rotatably supported between the mounting frames 30 and 30. The scraping member 14 is, for example, as shown in FIG.
A scraping portion 14b formed of a tip made of a cemented carbide or ceramic material having excellent wear resistance is detachably fixed to 14a, and the base plate 14a is attached from the peripheral surface of the fixed shaft 39. It can be configured to be detachably attached to the portion 39a via an elastic body 40 such as a rubber plate. The mounting angle of the scraping member 14 can be appropriately adjusted by changing the mounting angle of the fixed shaft 39 with respect to the bearing members 31, 31. 41 is a bolt for fixing the shaft end of the fixed shaft 39 to the bearing members 31, 31.

[0027]

As described above, when the apparatus for scraping and collecting adhering materials for a belt conveyor according to the present invention is used, a plurality of inner peripheral surfaces are provided.
The rotary ring body obtained by forming a number of bucket portion in the middle portion of the travel path of the belt conveyor, disposed in a state of being surrounded to pass the belt conveyor, the rotary ring member
Belt conveyor in the space above the bucket on the lower circumference side
A scraping member that comes into sliding contact with the belt surface of the reversing side is disposed so as to traverse the belt surface, and the scraping member is provided on the outer periphery of the rotating ring body.
Impact force applying means for intermittently applying impact force to the rolling ring body
The scraping member, which is in contact with the belt surface, can scrape off the adhered matter remaining on the belt surface almost completely, and the scraping portion.
The material is the space above the bucket on the lower circumference side of the rotating ring.
Since it is installed in the
Directly and surely remove all the deposits on the rotating ring
It can be collected by dropping it inside the container.
Lift the kimono upward by rotating the rotating ring and
It can be efficiently returned to the belt side of the transport side of the conveyor belt.
It can be done.

Therefore, after removing the deposits on the belt surface by the deposit removing device according to the well-known technique near the turning position of the belt conveyor, the deposits still remaining on the belt surface can be effectively removed. The removed deposits can be returned to the conveyor belt surface without the need for manual labor.Therefore, the granular material that separates from the conveyor belt surface by vibrating when the conveyor belt passes the return roller It can be surely prevented from falling on the surface, and no labor and labor for removing the adhered matter are required. Furthermore, the post-treatment of shower water, which was necessary when removing the deposits using the conventional shower device, is completely unnecessary, and the labor and cost associated with removing the deposits on the belt surface can be greatly reduced. It has demonstrated excellent effects not seen in the past.

Further, since a means for intermittently applying a shock to the rotating ring body during the driving rotation of the rotating ring body is provided, the rotating ring body is periodically shocked and is subject to vibration due to the shock. The deposits in the bucket portion can be peeled off and returned to the transport-side belt surface, and the deposits remaining in the bucket portion can be prevented as much as possible.

In addition, the scraping member has a rotating shaft arranged below the reversing side belt surface in a direction traversing the reversing side belt surface, and a length extending along the lengthwise direction of the rotating shaft. By arranging a plurality of brush bundles in a radial direction in the circumferential direction and arranging them at predetermined intervals with a gap between adjacent brush bundles, the scraped powder and granular deposits can be stored in the brush bundle. It is possible to escape to the gap between the brush bundles without being retained, and to reliably drop and collect in the bucket portion of the rotating ring body.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing the overall configuration of a belt conveyor device equipped with the device of the present invention.

FIG. 2 is a vertical sectional front view of a main part of the device of the present invention.

FIG. 3 is a vertical sectional side view of the main part.

FIG. 4 is a perspective view showing the same portion omitted.

FIG. 5 is an enlarged front view of a drive wheel.

FIG. 6 is an enlarged vertical sectional view of the same.

FIG. 7 is an enlarged cross-sectional view of a scraping member.

FIG. 8 is a vertical cross-sectional front view of essential parts showing another embodiment.

FIG. 9 is a vertical sectional side view of a main part thereof.

FIG. 10 is an enlarged sectional view of an essential part showing a modified example of the scraping member.

[Explanation of symbols]

 1 Belt conveyor 4b Reverse side belt surface 13 Rotating ring body 14 Scraping member 19 Bucket part 22 Rolling wheel 23 Rolling wheel 27a Circumferential cam 31 Bearing member 32 Rotating shaft 33 Brush bundle 38 Cam protrusion S2 space

Claims (3)

[Claims] 1. A plurality of bucket portions are formed on the inner peripheral surface.
A rotating ring body having a shaft shorter than the diameter of the rotating ring body.
The rolling contact is supported on a pair of rolling wheels that are arranged with a distance between the centers.
And make it rotate according to the drive rotation of one rolling wheel.
This rotating ring body is arranged in the middle of the traveling path of the belt conveyor in a state of being surrounded so as to pass through the belt conveyor.
The belt on the reverse side of the belt conveyor in the space above the racket
A scraping member that slides on the surface is placed across the belt surface.
And the outer circumference of the rotating ring body is impacted by the rotating ring body.
It is provided with impact force applying means for applying an impact force intermittently.
An apparatus for scraping and collecting deposits for a belt conveyor, which is characterized in that 2. A means for applying an impact to a rotating ring member is a rotating member.
There is a step on the outer peripheral surface of the rolling wheel for rotation drive of the ring body.
To form a circumferential cam, which is the outer circumferential surface of the rotating ring body.
Belt conveyor deposit scraping recovery system comprising by rolling contact according to claim 1, wherein the. 3. A means for applying an impact to a rotating ring is a rotating means.
Cam projections are projected on the outer peripheral surface of the ring body at regular intervals in the circumferential direction.
This cam protrusion is used to rotate the rotary ring body to drive it.
The apparatus for scraping and collecting adhered substances for a belt conveyor according to claim 1, wherein the device is configured to be brought into rolling contact with a driving wheel .