JP2006327697A - Recovery device of conveying matter dust - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To stably recover conveying matter dust on a conveyer surface for a long period of time. <P>SOLUTION: Conveying matter dust on the belt surface is dropped by spraying washing fluid on a belt return side belt 12B surface by washing means 21, 22, and washing fluid and dust dropped from the belt surface is received by a settling tank 25 and the dust is settled in washing fluid. A turning arm 27 having a scoop container 28 attached on a tip thereof is turned around the rear end part, the scoop container is moved between an output port of the settling tank and a belt carrier side, dust settling matter is scooped by the scoop container at the output port of the settling tank, and the dust settling matter is dropped on the belt in the belt carrier side from the scoop container in the belt carrier side. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an apparatus for recovering transported material dust. For example, when transporting transported material such as iron ore or coal by a belt conveyor, the transported material dust adhered to the conveyor surface can be recovered stably over a long period of time. Relates to the device.

  The belt conveyor is the lowest-priced transport machine currently in widespread use, and is widely used in various factories and facilities. However, when the transported material is in the form of powder or contains powdered material. The powder adheres to the belt surface due to moisture on the belt surface, and drops and scatters on the belt return side, deteriorating the environment.

  Therefore, a cleaner is provided on the belt return side to scrape off dust adhering to the belt, and the dry dust collection device that is received by the shooter, or the belt on the belt return side is washed with water, and if necessary, further with a tip roller etc. There have been proposed wet dust recovery devices that scrape off and accumulate dust in the pits.

  However, since the dry dust recovery device is processing in the dry mode, the dust cannot be completely scraped off, and the cleaner is heavily worn, requiring frequent replacement, which hinders continuous operation.

  On the other hand, in the wet dust recovery device, the dust is washed with water and scraped off with a tip roller, etc., so the dust can be scraped off almost completely, but the dust accumulated in the pit is sludge, so it is discarded. There is no choice but to incur high costs.

  On the other hand, the present inventors washed the belt surface dust with water on the belt return side, received it underneath, returned it to the belt carrier side with a transport pipe, and recovered the transported material dust so that it could be reused as a raw material. It came to develop an apparatus (patent document 1).

Japanese Patent Laid-Open No. 05-116736

  However, the transported material dust recovery device described in Patent Document 1 adopts a structure in which a chain conveyor having a scraping blade is built in the transport pipe and the dust is returned to the belt carrier side. The blade rubs against the inner surface of the transport pipe and dust and wears and wears violently, making it impossible to transport the dust immediately, necessitating replacement of the chain conveyor and scraping blade, and it is difficult to put it to practical use in terms of cost. found.

  In view of such problems, an object of the present invention is to provide a transportation dust collection device that can stably collect transportation dust attached to a conveyor surface over a long period of time.

  The transportation dust collection device according to the present invention is configured to collect transportation dust adhering to the belt surface of the belt conveyor on the belt return side and return it to the belt carrier side. The cleaning means sprays the cleaning liquid onto the belt surface of the belt to drop the transported material dust on the belt surface, and receives the cleaning liquid and dust dropped from the belt surface and precipitates the dust in the cleaning liquid, while the dust deposit at the bottom And a scooping vessel attached to the front end of the settling tank so that it can be swiveled around its rear end. And move dust deposits in the scooping container at the outlet of the settling tank, and on the belt carrier side A pivot arm to drop serial scoop from the container the dust precipitate the belt carrier side of the belt, characterized by comprising a.

  One of the features of the present invention is that the transport material dust on the belt surface is dropped by liquid washing on the belt return side, and this is received and settled in a sedimentation tank. The arm is turned to carry the scooping container to the belt carrier side, and dust deposits are returned from the scooping container onto the belt on the belt carrier side.

  As a result, the swivel arm and the scooping container do not generate much wear and wear compared to the transport pipe described in Patent Document 1, and the transported dust adhering to the belt surface is reliably and stably recovered over a long period of time. It can be returned to the carrier side.

  The swivel arm may be provided with a handle on the rotating shaft of the swivel arm so that the operator can manually swivel it. However, the swivel arm may be further provided with a drive device for turning the swivel arm so that it can be automatically operated.

  For example, a sprocket can be attached to the output shaft on the drive motor side and the rotating shaft of the swivel arm, and the drive device can be configured by connecting the sprockets with a chain for transmitting a driving force. Further, the drive device can be configured by providing a transmission gear group between the output shaft on the drive motor side and the rotation shaft of the swivel arm.

  Furthermore, the swivel arm can be driven using the movement of the conveyor belt. That is, the driven roller can be brought into contact with the conveyor belt and rotated, and the rotation of the driven roller can be transmitted to the rotating shaft of the swivel arm by a chain, a sprocket or the like to rotate the swivel arm. It is also possible to provide one or a plurality of tension rollers on the side opposite to the driven roller with respect to the conveyor belt so that the driven roller and the conveyor belt come into contact with each other evenly and stably.

  The swivel arm swivels around the rear end to move the scooping container at the tip between the take-out port of the settling tank and the belt carrier side, and return the dust sediment from the scooping container onto the carrier side belt. What is necessary is just to be comprised. For example, the swivel arm may be swung in a plane inclined with respect to the vertical plane so that the swivel arm is positioned above the carrier side belt at a position on the belt carrier side. Is heavy on the swivel arm. Therefore, it is preferable that the swivel arm is swung in a vertical plane so that the swivel arm is tilted to the belt carrier side when the scooping container of the swivel arm comes to the belt carrier side.

  That is, the guide member further includes a guide member that guides the turning of the turning arm, and the guide member guides the turning arm to turn in one turning plane in the turning region other than the belt upper region on the belt carrier side. In the upper belt region on the carrier side, the swivel arm may be guided so as to return to the swivel plane after falling from the swivel plane to the belt carrier side.

  The swivel arm may be entirely collapsed toward the belt carrier side, but requires a large tilting space. Therefore, it is preferable to fold the turning arm into two in the middle so that the tip end side falls down to the belt carrier side. In this case, the turning can be guided using the housing of the turning arm.

  That is, the swivel arm is configured to be foldable in the middle, while the guide member is composed of a housing and a guide bar, and the housing covers the outer peripheral edges of two circular side plates arranged in parallel to each other with a cover plate. The upper part of the circular side plate on the belt carrier side is formed with a notch so that the swivel arm can tilt above the belt on the belt carrier side, and the guide bar is provided in front of the housing notch and tilted. It is preferable to have a shape that receives the swivel arm and returns it to the housing along with the swivel.

  Further, since the swivel arm swirls within the housing, it is preferable that the lower end portion of the housing is communicated with the dust sediment outlet of the sedimentation tank.

  Hereinafter, the present invention will be described in detail based on specific examples shown in the accompanying drawings. 1 to 6 show a preferred embodiment of a transported dust collection apparatus according to the present invention. In the figure, working steps 10A and 10B are provided on both sides of the conveyor frame 10 so as to extend in the longitudinal direction, and driving rollers (not shown) and driven rollers 11 are provided at both longitudinal ends of the conveyor frame 10. Is supported.

  A conveyor belt 12 is stretched between the driving roller and the driven roller 11 in an endless manner. The driving force is transmitted to the driving roller by a driving source to convey the conveyor belt 12, and the carrier-side belt 12A has iron ore. In addition, transportation such as coal is mounted and transported.

  The conveyor frame 10 also supports a transported material dust collection device 20 for collecting dust adhering to the belt surface.

  As shown in FIGS. 3 and 4, a pipe (cleaning means) 21 extending in the belt width direction is attached to the conveyor frame 10 below the belt 12B on the belt return side. A plurality of injection nozzles (cleaning means) 22 are attached to the pipe 21, and cleaning water is supplied to the pipe 21 by a solenoid valve (cleaning means) 21A. The cleaning water is supplied from the injection nozzle 22 to a predetermined injection angle, for example, left and right The spray nozzle 22 is sprayed to the belt 12B on the belt return side with a spray angle of 50 ° and the central spray nozzle 22 with a spray angle of 65 °, so that the transported dust adhering to the belt surface is dropped. .

  Further, as shown in FIG. 3, a thick plate-like wiping cleaner 23 is disposed on the downstream side of the injection nozzle 22 below the belt 12B on the belt return side, and is attached to the bare frame 10 by an attachment arm 23A. The transport material dust remaining on the belt 12B is wiped off. For the wiping cleaner 23, heat-resistant and wear-resistant rubber (for example, chloroprene rubber), polyethylene (for example, ultra-high molecular weight polyethylene), wear-resistant sponge (for example, rubber sponge, polyethylene sponge) or the like is used. .

  Further, a bowl-shaped receiving plate 24 is disposed under the belt return side belt 12B so as to cover the lower side of the spray nozzle 22 and the wiping cleaner 23, and is suspended from the conveyor frame 10 by the stay 24A. Is attached so as to be lowered with respect to the traveling direction of the belt 12B on the belt return side, and a pipe 24A is attached to the inclined upper end side of the receiving plate 24 so as to extend in the width direction. An injection nozzle 24C is attached, and washing water is injected so that the transported material dust on the receiving plate 24 flows down to the inclined lower end side.

  A sedimentation tank 25 is disposed on the inclined lower end side of the receiving plate 24 and is supported by the conveyor frame 10. The inclined downstream end side of the receiving plate 24 has a passage width reduced by an inclined wall surface 24 </ b> D. While the dust and the washing water are guided to the settling tank 25, the settling tank 25 has a constricted shape and receives the transported material dust and the cleaning water from the receiving plate 24 to precipitate the transported material dust. ing.

  In addition, a dust sediment outlet 25A is formed at the bottom of the sedimentation tank 21, an overflow pipe 25B is provided at a predetermined water level in the sedimentation tank 25, and a partition plate 25D is provided at the bottom of the sedimentation tank 25. A gap is provided between the edge and the bottom surface of the sedimentation tank 25 so that the transport material dust and the washing water from the receiving plate 24 are once received by the partition plate 25D, and the transport material dust flows directly into the overflow pipe 25B. On the other hand, only the wash water that has passed through the lower side of the partition plate 25D is guided to the overflow pipe 25B.

  A housing (guide member) 26 is disposed on one side of the settling tank 25 and the conveyor frame 10 and attached to the conveyor frame 10. The housing 26 is configured by arranging two circular side plates 26A at a distance from each other and covering the outer peripheral edge thereof with a cover plate 26B. In the housing 26, two swivel arms 27 are aligned with each other. In addition, the rotary shaft is pivotally supported so as to be able to turn around the rear end portion, and the rotary shaft of the turning arm 27 is attached with a sprocket 27A.

  An output shaft of a drive motor 29 with a transmission gear is connected to the rotation shaft of the turning arm 27, the turning arm 27 is turned by the driving motor 29, and the turning arm 27 is configured to be foldable in the middle. A bucket (scooping container) 28 is attached to the tip of the arm 27. Instead of the direct drive system of the drive motor 29, a drive system using the above-described chain and sprocket, or a drive system using a conveyor belt and driven rollers can be employed.

  A lower end portion of the housing 26 is connected to an outlet 25A of the settling tank 25. A swivel arm 27 is placed on the belt carrier side of the belt 26 on the belt carrier side of the housing 26 due to the weight of the bucket 28 and dust. A notch 26B is formed so as to be able to incline above the belt 12A.

  A guide bar (guide member) 30 is provided on the belt carrier side of the notch 26B. The guide bar 30 receives the tilted swing arm 27, and the swing arm 27 is moved into the housing 26 as the swing arm 27 rotates. It is shaped to return.

  When transporting the transported goods F, the driving roller is driven by the drive source to transport the conveyor belt 12 and the transported goods F are loaded on the belt carrier side belt 12A. Is done.

  At that time, transport material dust adheres to the surface of the conveyor belt 10, and when it comes to the belt return side, cleaning water is sprayed from the spray nozzle 22 toward the belt 12B on the belt return side, and transport material dust on the belt surface. Falls downward and is received by the receiving plate 24.

  The transported dust remaining on the belt surface is wiped off by the wiping cleaner 23 and dropped and received by the receiving plate 24. Wash water is sprayed from the injection nozzle 24C on the inclined upper end side to the receiving plate 24, and the transported dust on the receiving plate 24 flows down toward the inclined lower end side of the receiving plate 24, and further, the inclined wall surface 24D of the receiving plate 24 is inclined. And fall into the sedimentation tank 25. In the sedimentation tank 25, the transported material dust settles in the washing water toward the bottom outlet 25A. The washing water in the settling tank 25 passes through the lower side of the partition plate 25D and is drained from the overflow pipe 25B.

  Further, when the drive motor 29 is actuated so that the swivel arm 27 is swung around the rotation axis in the housing 26 and the bucket 28 of the swivel arm 27 comes to the lower end of the housing 26, it is transported from the outlet 25 </ b> A of the settling tank 25. Scatter dust.

  When the swivel arm 27 further swivels and reaches the upper part of the housing 26, the swivel arm 27 is folded in two by the weight of the bucket 28 and the load dust, and the belt 26 on the belt carrier side above the belt 12A on the belt carrier side. In this way, the transported dust in the bucket 28 is returned onto the belt 12A on the belt carrier side and reused as the transported product F.

  When the swivel arm 27 is further swiveled after being received by the guide bar 30, it is guided back by the guide bar 30 and then gradually returned to the straight state while being returned to the housing 26. Repeat the first action.

It is a front view which shows the principal part structure of preferable embodiment of the collection apparatus of the transported material dust which concerns on this invention. It is a side view which shows the principal part structure of the said embodiment. It is a side view which shows the principal part structure of the said embodiment. It is a figure which shows the injection nozzle in the said embodiment. It is a top view which shows the whole structure in the said embodiment. It is a side view which shows the whole structure in the said embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Conveyor frame 11 Driven roller 12 Conveyor belt 12A Belt carrier side belt 12B Belt return side belt 20 Transported material dust recovery device 21 Piping (cleaning means)
22 Injection nozzle (cleaning means)
24 receiving plate 25 sedimentation tank 25A outlet 26 housing 26B notch 27 swivel arm 28 bucket (ugly container)
29 Drive motor (drive device)
30 Guide bar (guide member)

Claims (5)

In the collection device for the collected material dust that is collected on the belt return side and returned to the belt carrier side, the collected material dust adhering to the belt surface of the belt conveyor.
Cleaning means for dropping the transport dust on the belt surface by spraying cleaning liquid on the belt surface on the belt return side;
While receiving the cleaning liquid and dust dropped from the belt surface and precipitating the dust in the cleaning liquid, a sedimentation tank in which a dust sediment outlet is formed at the bottom,
A scooping container is attached to the front end, and is provided so as to be able to swivel around the rear end part. By the swiveling, the scooping container is moved between the take-out port of the sedimentation tank and the belt carrier side, and the sedimentation tank A swivel arm that causes dust deposits to fall in the scooping container at the outlet of the belt carrier and drops dust deposits from the scooping container on the belt carrier side onto the belt on the belt carrier side;
An apparatus for recovering transported dust, comprising:   The transported dust collection device according to claim 1, further comprising a drive device for turning the turning arm. A guide member for guiding the turning of the turning arm;
The guide member guides the swivel arm to swivel in one swivel plane in a swiveling region other than the belt upper region on the belt carrier side, while the swivel arm is in the belt upper region on the belt carrier side. 3. The transportable dust collection device according to claim 1 or 2, wherein the apparatus is guided so as to return to the inside of the turning plane after falling from the turning plane toward the belt carrier. While the swivel arm is configured to be foldable in the middle, the guide member is composed of a housing and a guide bar,
The housing is configured by covering the outer peripheral edges of two circular side plates arranged in parallel with each other with a cover plate, and the swivel arm tilts above the belt on the belt carrier side on the upper part of the circular side plate on the belt carrier side. A notch is formed to allow
4. The packaged dust collection device according to claim 3, wherein the guide bar is provided in front of the notch of the housing and has a shape that receives the tilted swivel arm and returns to the housing as the swivel is performed. The transported material dust collection device according to claim 4, wherein a lower end portion of the housing communicates with a dust sediment take-out port of the sedimentation tank.

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