JP3761125B2 - Belt conveyor for sorting equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a belt conveyor for a sorting device, and in particular, conveys the workpiece to a sorting device that sorts a workpiece to be processed according to the purpose, such as a mixture of a lightweight workpiece and a heavy workpiece. The present invention relates to a belt conveyor for a sorting device.
[0002]
[Prior art]
In general, building scraps that have been demolished, such as concrete scraps, can be reused as resources such as concrete, stone, sand, and landfills / incineration, such as wood chips, enviroment pipes, vinyl, waste, plastic, paper, etc. Includes those that are disposed of. Therefore, it is necessary to further sort the building waste materials in order to reuse them.
[0003]
As a method for selecting such building waste materials, there is a manual method. However, according to the manual method, the amount of processing is limited due to danger of being caught in a line, work restrictions due to dust, fatigue, and the like. For this reason, apart from a sorting process that can only be performed manually, a sorting process using a machine is currently the mainstream.
[0004]
Conventionally, as a mechanical sorting method, an ink line method, a vibration / wind sorting method, a tilt type sorting method, a rotating brush method, and the like have been developed.
Among these, the ink line type sorting device has a configuration in which an inclined conveyor and a rotary chain curtain are combined. In addition, the vibration / wind sorting system sorter is configured to loosen the object to be processed by vibration and separate and sort by using the jet output / suction force of a blower or a suction machine. Furthermore, the tilt type sorting system sorting device utilizes the ease of rolling of the slope mainly related to the weight of the object to be processed, and separates and sorts using a roller conveyor or disk for climbing conveyance. It is.
[0005]
Japanese Patent Application Laid-Open No. 62-57687 describes a rotary brush type sorting device comprising a pair of rotating brushes. In this sorter, when a workpiece is dropped onto the brush, the lightweight workpiece is conveyed in a tangential direction substantially perpendicular to its axis by the rotating brush, while the workpiece having a high specific gravity is moved between the rotating brushes. Fall from. Thereby, a light to-be-processed object and a to-be-processed object with large specific gravity are sorted out.
[0006]
[Problems to be solved by the invention]
By the way, when sorting the building waste material demolished by using such a sorting device, for example, the building waste material is previously crushed by a crusher, and the sorting object is crushed to a predetermined size or less. In the sorting process. In view of this, a belt conveyor is disposed upstream of the sorting device for transporting the workpiece to be crushed by the crusher and continuously supplying it to the sorting device.
[0007]
However, since the amount of the object to be processed which is crushed and conveyed by the belt conveyor varies, the amount of the object to be continuously supplied to the sorting device also varies. Therefore, in a sorting apparatus that is difficult to cope with fluctuations in the supply amount of the object to be processed, there has been a problem that a good sorting process cannot be performed and the separation and recovery rate is lowered.
In addition, when the object to be treated is a water-containing object, the objects to be treated stick to each other, and the surface of the conveyor belt is seized, so that it is not possible to properly select the light object to be processed and the light object to be processed. There was a problem.
[0008]
In addition, in order to loosen such an object to be processed by vibration, when a separate vibration device is used, the equipment becomes larger and the power equipment is burdened, and considerable capital investment is required in addition to the main body of the device. End up.
Accordingly, an object of the present invention is to solve the above-mentioned problem, and it is possible to impart vibration to the object to be processed without using a special facility that requires a drive source or the like, whereby the object to be processed in the sorting apparatus. It is an object of the present invention to provide a good belt conveyor for a sorting apparatus that can increase the separation and recovery rate.
[0009]
[Means for Solving the Problems]
The above object of the present invention is a belt conveyor for a sorting device that transports an object to be processed placed on the conveyor belt to a sorting device as the conveyor belt moves on a plurality of carrier rollers. At least part of the carrier roller Outside the roller body, which is a flat roller Protrusions of the required shape are provided on the peripheral surface And a step between the outer peripheral surface and the protrusion. Conveyor belt by difference Required for sorting the workpieces Has given vibration, The protrusion is formed of a rod member fixed to the outer peripheral surface of the roller body in parallel to the axial direction at equal intervals, and the vibration roller is disposed on the upstream side in the conveying direction. And a second vibration roller that is installed downstream of the first vibration roller and applies a weaker vibration to the conveying belt than the first vibration roller, and is further fixed to the outer peripheral surface of the first vibration roller. The number and the diameter of the rod members are smaller and larger than the number of the rod members of the second vibrating roller. It is achieved by a belt conveyor for a sorting device characterized by the following.
[0010]
According to the above configuration, the conveyor belt to be driven is imparted with the required vibration by the step between the protruding portion of the vibration roller and the outer peripheral surface, thereby applying the required vibration to the workpiece on the conveyor belt. Therefore, it is not necessary to use a separate vibration device.
And the to-be-processed object on the conveyance belt provided with the vibration is leveled along the conveyance direction, and the supply amount to the sorting device is averaged.
In addition, even when the object to be processed is a water-containing object, the attached objects to be processed are loosened by vibrations and are prevented from being attached to the surface of the conveyor belt. Since the workpiece is lifted to the upper layer, it is possible to satisfactorily perform the sorting process of the lightweight workpiece and the heavy workpiece by the subsequent sorting apparatus.
[0011]
According to the present invention, The vibrating roller is Of the roller body On the outer surface Of the roller body A bar member is fixed in parallel to the axial direction. in this case, On the roller body Since the vibrating roller can be manufactured by a simple process of fixing the rod member, the manufacturing cost of the vibrating roller can be reduced, and a cheaper belt conveyor for the sorting apparatus can be provided. As the bar member, a round bar, a semi-circular bar, a round pipe, or the like can be used.
[0012]
or, According to the present invention, A first vibration roller disposed on the upstream side in the transport direction; a second vibration roller disposed downstream of the first vibration roller and imparting a weaker vibration to the transport belt than the first vibration roller; Have In this case, since the vibration to the object to be processed can be given in the order of relatively strong vibration by the first vibration roller and relatively weak vibration by the second vibration roller, the object to be processed is caused by the strong vibration of the first vibration roller. Separated by the difference in specific gravity, the placement surface of the workpiece is leveled by the slight vibration of the second vibrating roller. By applying vibration stepwise in this way, the lightweight object can be floated efficiently, the mounting surface of the object to be processed can be flattened, and the sorting ability by the subsequent sorting device can be further improved. it can. It should be noted that the amplitude of vibration can be easily changed simply by changing the protruding amount of the protrusion on each vibration roller.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a belt conveyor for a sorting apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is an overall configuration diagram showing a sorting conveyor 100 of a first embodiment in which a sorting device 40 is installed on a sorting device belt conveyor 30 according to an embodiment of the present invention.
[0014]
The sorting conveyor 100 shown in FIG. 1 is a concrete piece, a brick piece, and a reinforcing bar piece. For example, a building waste material is previously crushed by a crusher or the like, and an object to be processed (not shown) crushed to a predetermined size or less. A sorting device 40 that sorts into a relatively heavy thing (hereinafter referred to as a heavy object) and a relatively light weight (hereinafter referred to as a light object) such as a wood chip, a resin material piece, and a paper piece. Preparation Have .
[0015]
The sorting conveyor 100 carries a workpiece, which is a mixture of a lightweight workpiece and a heavy workpiece, on the conveyor belt 31 of the inclined belt conveyor 30 for the sorting apparatus, and conveys the workpiece upward. The conveyor belt 31 is vibrated in the vertical direction by the first and second vibrating rollers 33 and 34, which are rollers, so that the required vibration is applied to the object to be conveyed.
[0016]
Then, the object to be processed on the conveyor belt 31 that is vibrated by the first and second vibrating rollers 33 and 34 is lightly processed due to the difference in specific gravity while the mounting surface is leveled along the conveying direction. Is conveyed upward while being lifted to the upper layer and supplied to the sorting device 40.
A known magnetic separator 36 is installed in the middle of the conveying path of the belt conveyor 30 for the sorting device, and a metal or the like that can be magnetically adsorbed can be selected from an object to be processed on the conveying belt 31.
[0017]
The sorting device 40, which will be described in detail later, is disposed on the side of the conveyor belt 31 of the sorting device belt conveyor 30 by scraping up the light-weight object that has floated to the upper layer by the vibration of the conveyor belt 31 by the rotation of the rotating brush 41. Discharge to a discharge chute (not shown). In addition, the heavy object to be processed that is not scraped up by the rotating brush 41 is discharged from the outlet chute 37 installed at the end of the sorting device belt conveyor 30 and stocked. In this way, the light and heavy objects are sorted.
[0018]
As shown in FIG. 1, the sorting device belt conveyor 30 includes belt pulleys 32a and 32b provided at both ends of the conveyor, a loop-shaped conveyor belt 31 wound around the belt pulleys 32a and 32b, and a conveyor. A flat roller 35 that is provided in the middle of the path and that constitutes a carrier roller, first and second vibrating rollers 33 and 34, and a driving device (not shown) that drives the conveyor belt 31, are mounted on the conveyor belt 31. The processed object is conveyed in the direction of arrow A.
[0019]
The belt pulleys 32a and 32b, the flat roller 35, and the first and second vibrating rollers 33 and 34 are rotatably supported on the conveyor frame 38 in a substantially horizontal state (see FIG. 2). The flat roller 35 is appropriately provided as a return roller, for example, other than the illustrated position.
Further, the inclination angle of the conveying surface of the belt conveyor 30 for the sorting device is set within a range of 18 to 20 degrees according to the type of the object to be processed, but is set to 18.5 degrees in the present embodiment. ing.
[0020]
A plurality of first vibration rollers 33 provided upstream and a plurality of second vibration rollers 34 provided downstream of the first vibration rollers 33 impart required vibrations to the workpieces on the conveyor belt 31. Instead of a flat roller as a carrier roller in a normal belt conveyor, the conveyor frame 38 is rotatably supported.
As shown in FIGS. 2 and 3A, the first vibrating roller 33 is formed on the outer peripheral surface of a roller body 33a having a diameter of 89.1 mm and a length of 500 mm, for example, in the axial direction of the roller body 33a. On the other hand, a plurality of protrusions 33b are formed at equal intervals on the outer peripheral surface of the roller main body 33a at a total of five locations by fixing a round bar having a diameter of 22 mm in parallel by welding or the like. Here, since the commercially available standard flat roller can be used for the roller body 33a, the vibration roller 33 can be configured relatively easily and inexpensively. And each 1st vibration roller 33 has an attachment pitch L on the upstream side of the conveyance path. ₁ For example, a total of three are arranged with 600 mm.
[0021]
When the conveying belt 31 is driven in a state where the first vibrating roller 33 is in contact with the conveying belt 31, each first vibrating roller 33 rotates with the movement of the conveying belt 31, and the roller body 33. outside a The required vibration is imparted to the conveyor belt 31 by the step between the peripheral surface and each protrusion 33b. Due to this vibration, the object to be processed on the conveyance belt 31 vibrates and is leveled along the conveyance direction. In the magnetic separator 36 The supply to is averaged. Further, even when the object to be treated is a water-containing object, the stuck objects to be treated are loosened by vibrations and to the surface of the conveyor belt 31. Sticking In addition, the lightweight workpiece rises to the upper layer due to the difference in specific gravity of the workpiece. The vibration amplitude of the first vibration roller 33 is relatively large (about 12 mm), and strong vibration can be applied to the conveyor belt 31 in combination with the elastic repulsion force of the conveyor belt 31 due to the long pitch.
[0022]
On the other hand, as shown in FIG. 3B, the second vibrating roller 34 is formed on the outer peripheral surface of the roller body 34a having a diameter of 89.1 mm and a length of 500 mm, for example, with respect to the axial direction of the roller body 34a. A plurality of protrusions 34b are formed at a total of six locations at equal intervals on the outer peripheral surface of the roller body 34a by fixing, in parallel, a round bar having a diameter of 16 mm by welding or the like. As the roller body 34a, a commercially available standard flat roller can be used. And each 2nd vibration roller 34 has an attachment pitch L on the upstream side of the conveyance path. ₂ For example, a total of six are arranged with 500 mm.
[0023]
When the conveying belt 31 is driven in a state where the second vibrating roller 34 is in contact with the conveying belt 31 in the same manner as the first vibrating roller 33, each second vibrating roller 34 rotates as the conveying belt 31 moves. Roller body 34 outside a The required vibration is applied to the conveyor belt 31 due to the step between the peripheral surface and each protrusion 34b. The amplitude of vibration by the second vibrating roller 34 is Small compared to the first vibrating roller Saku (about 8mm ) And waves A short fine vibration can be applied to the conveyor belt 31.
[0024]
That is, vibrations to the object to be processed can be given in the order of relatively strong vibrations by the first vibration roller 33 and relatively weak vibrations by the second vibration roller 34. The object to be processed is separated due to the difference in specific gravity, and the placement surface of the object to be processed is leveled by the slight vibration of the second vibration roller 34. By applying vibration in stages as described above, the lightweight object can be floated efficiently, the mounting surface of the object to be processed can be flattened, and the sorting ability by the subsequent sorting apparatus 40 can be further improved. Can do.
[0025]
Further, in the belt conveyor 30 for the sorting device, the conveyance belt 31 to be driven is a roller body 33a, 34 of the vibration rollers 33, 34. outside a Depending on the level difference between the peripheral surface and each projection 33b, 34b It is possible to set the desired amplitude, There is no need to use a separate vibration device. Therefore, the belt conveyor 30 for the sorting apparatus is increased in size and the power equipment is not burdened, and no equipment investment other than the main body is required.
[0026]
The protrusions 33b and 34b are formed by welding round bars, which are bar members, to roller bodies 33a and 34a made of flat rollers, but as shown in FIG. The rod may be fixed to a roller body 60a made of a flat roller, or as shown in FIG. 7B, the round pipe may be fixed to a roller body 61a made of a flat roller. . Alternatively, a roller body in which a protrusion is integrally formed can be used. Of course, it goes without saying that the protrusions 33b and 34b are appropriately set in accordance with the selection conditions.
[0027]
Also, the vibration pattern of each vibration roller 33, 34 can be synchronized, or can be set to be always asynchronous, or the vibration pattern can be changed by setting the arrangement of the projections 33b, 34b at specific intervals. Also good. Further, the number of vibration rollers 33 and 34 can be changed as appropriate.
[0028]
Furthermore, the vibrating roller support structure shown in FIG. 2 can be changed as appropriate.
For example, the first vibrating roller 33 shown in FIG. 8 and FIG. 9 is formed at both end portions by a pair of support plates 24 and 24 suspended from a lower frame 22 bridged by conveyor frames 38 and 38 extending in the longitudinal direction. The roller shafts 33c and 33c are supported.
[0029]
The lower frame 22 made of groove steel is fixed by bolting attachment portions 26, 26 formed at both ends to the conveyor frames 38, 38, and the first vibrating roller 33 is bent in a crank shape. By appropriately changing the height of the formed attachment portions 26, 26, the distance between the upper edge of the roller body 33a contacting the conveyor belt 31 and the conveyor frame 38 is made constant regardless of the diameter of the roller body 33a. Can keep. Of course, the second vibrating roller 34 can be supported in the same manner.
[0030]
Further, the effective length with which the vibrating rollers 33 and 34 actually contact the transport belt 31 is about 230 mm, and the length of the roller main bodies 33 a and 34 a can be much shorter than 500 mm of this embodiment. Even in this case, the vibration rollers 33 and 34 can be stably attached to the conveyor frame 38 regardless of the lengths of the roller bodies 33a and 34a by appropriately changing the lengths of the attachment portions 26 and 26.
[0031]
Further, when skirts 27 for preventing falling rocks as shown in FIG. 10 are provided on both sides of the belt conveyor 30 for the sorting device to which the vibration rollers 33 and 34 are attached, the attachment portions of the lower frame 22 are provided. The skirt post 28 can be set up via 26. Therefore, for example, compared to the case where the skirt support 28 is bolted by making a bolt hole in a conveyor frame 38 made of angle steel, the skirt support 28 is bolted through the mounting portion 26 made of grooved steel. The attachment strength of the skirt support 28 is increased, and the skirt 27 does not wobble when the roller vibrates.
[0032]
That is, by setting up the skirt struts 28 on the mounting portion 26, the number of the skirt struts 28 can be increased and the number of the skirt struts 28 can be reduced as compared with the case where the skirt struts 28 are directly fixed to the conveyor frame 38.
Therefore, the vibration rollers 33 and 34 are not covered with the skirt support 28 and the operating condition is not easily seen, and the vibration rollers 33 and 34 and the like can be easily replaced during maintenance. In addition, workability when removing and attaching the skirt 27 for preventing falling rocks is good.
[0033]
Further, in the belt conveyor for the sorting apparatus according to the present invention, instead of the driving system in which the vibration rollers 33 and 34 are driven by the transport belt 31, a separate driving device may be provided to control the vibration pattern in a programmable manner. Moreover, it is good also as a structure which provides a mounting amount sensor in the middle of a conveyance path, and changes a vibration pattern according to a mounting amount. As described above, by appropriately adjusting the vibration pattern, it is possible to obtain a vibration pattern that can efficiently float a light-weight object to be processed according to the type and amount of the object to be processed.
[0034]
Next, the sorting apparatus 40 in this embodiment will be described.
The sorting device 40 is provided above the transport belt 31 on the downstream side in the transport direction A from the second vibrating roller 34 of the sorting device belt conveyor 30. 4 is a front view showing the configuration of the sorting device 40, FIG. 5 is a plan view seen from above FIG. 4, and FIG. 6 is a side view seen from the direction of arrow B in FIG.
As shown in FIGS. 4 to 6, the sorting device 40 is rotatable on a bearing portion 44 supported by a device frame 42 standing on a conveyor frame 38 of the sorting device belt conveyor 30 via a lifting tool 43. A supported rotary brush 41, a brush drive motor 47 which is installed on the bearing portion 44 and rotationally drives the rotary brush 41 via a transmission means 45 including a sprocket and a chain and a speed reducer 46; As a predetermined distance, there is a gap through which the workpiece M flows between the tip of the bristles 48 and the conveyor belt 31, and the cross-sectional shape is a semicircular shape with the rotation shaft 49 of the rotary brush 41 as a substantially central position. The lower casing 50 is formed, and is installed above the lower casing 50. The cross-sectional shape of the lower casing 50 is also an arc, and the scraped material by the rotating brush 41 is discharged to the outside of the casing. And an upper casing 52 having a discharge port for.
[0035]
Further, on the lower surface of the conveyor belt 31 at the entrance and exit of the sorting device 40, as shown in FIG. 6, the belt protection is made so that the belt is curved along the outer periphery of the rotating brush 41 and the inner periphery of the lower casing 50. A roller 53 is provided.
Further, below the rotating brush 41 of the sorting device 40, as shown in FIG. 4, if necessary, the same as the first vibrating roller 33 that abuts the lower surface of the conveying belt 31 and vibrates the conveying belt 31. At least one third vibrating roller 55 having a shape (three in this embodiment) is provided. The third vibration roller 55 may have the same shape as the second vibration roller 34. Other shapes may be obtained by changing the diameter and number of the round bars. Further, the third vibrating roller 55 can also have a support structure as shown in FIGS.
[0036]
The rotary brush 41 is formed by implanting brush hairs 48 in a spiral shape on the outer peripheral surface of the cylindrical core 6 inserted through the rotary shaft 49, and is rotated by a brush drive motor 47. As a result, the light-weight object floating on the upper layer on the conveyor belt 31 is scraped up between the lower casing 50 and the upper casing 52 by the rotating brush 41 and discharged from the outlet of the upper casing 52. Further, the rotating shaft 49 of the rotating brush 41 has a predetermined angle θ with respect to the conveying direction A as shown in FIG. ₁ It is provided only with an inclination. As a result, the rotating brush 41 comes into sliding contact over substantially the entire surface of the conveyor belt 31 in the width direction.
[0037]
The material used for the bristles 48 of the rotating brush 41 is selected so as to obtain the repulsive force and strength necessary for scraping the lightweight workpiece on the conveyor belt 31 in the circumferential direction of the rotating brush 41. For example, it is made of a hard nylon fiber bundle (in addition, vinyl chloride, polystyrene).
Then, the spiral rotation direction is set to be a direction reverse to the traveling direction of the conveyance belt 31, so that the lightweight workpiece can be prevented from moving downstream due to the rotation of the rotating brush 41.
[0038]
Specifically, the brush bristle 48 of the present embodiment has a wire diameter of 0.7 mm, a wire length of 230 mm, and a spiral pitch of 30 mm. Furthermore, it is preferable in terms of practical sorting efficiency that the overall length of the rotary brush 41 along the rotation axis 49 is 900 to 1500 mm.
[0039]
The brush bristles 48 of the rotating brush 41 may be planted equally in both the circumferential direction and the longitudinal direction of the rotating shaft 49, and at least one of the circumferential direction or the axial direction of the rotating shaft 49, You may provide the part from which the planting density differs partially. Further, the length of the brush bristles 48 to be implanted may be changed in part in the circumferential direction, or the bristles 48 on the outlet side of the sorting device 40 may be longer than the inlet side. Good. Further, the elastic force of the bristle 48 and the tip of the bristle 48 and the conveying belt 31 are set so that the exclusion force due to the scraping of the bristle 48 of the rotating brush 41 increases toward the downstream side in the conveying direction of the workpiece M. You may make it adjust the clearance gap between them. Thereby, the scraping effect with respect to a lightweight to-be-processed object can be improved.
The rotating brush 41 is configured to be easily detachable from the rotating shaft 49, thereby facilitating mounting and exchanging work.
[0040]
The brush drive motor 47 has a torque required for the rotation of the rotary brush 41, and the rotation speed is appropriately adjusted according to the type of the object to be processed M, the loading amount on the conveyor belt 31, and the like. In the present embodiment, a 0.4 kW motor is driven at 80 to 120 rpm.
[0041]
The lower casing 50 is provided below the rotating brush 41 so that the conveying belt 31 is along the inner peripheral surface, and a predetermined gap is provided between the tip of the bristle 48 of the rotating brush 41 and the conveying belt 31. Is set.
The upper casing 52 is provided with an inner peripheral surface that is continuous with the inner peripheral surface of the lower casing 50, and further scrapes the lightweight workpiece that has been scraped up by the rotating brush 41 on the lower casing 50 side along the inner peripheral surface. It discharges from the discharge port formed in the upper casing 52. In this embodiment, as shown in FIG. 6, the upper and lower casings 50 and 52, which are substantially cylindrical when combined, are opened as a discharge port at the upper left quarter corner in FIG. Is set to about 300 mm.
[0042]
Further, when the conveyor belt 31 sinks due to the weight of the workpiece M, the lower casing 50 slides on and supports the lower surface of the conveyor belt 31.
Further, as shown in FIG. 5, a plurality of (four in this embodiment) fan-shaped plate members 57 are predetermined along the conveying direction A above the conveying belt 31 on the inner peripheral surface of the lower casing 50. The light-weight object urged in the transport direction A as the transport belt 31 moves is picked up by the inner surface of the casing and then flowed in the transport direction for selection. It is prevented from being discharged from the outlet of the device 40 without being sorted. Note that the number of the stoppers 57 and the inclination angle can be freely changed according to the amount of conveyance and the condition of living.
[0043]
Further, a scraping member 59 is extended from the stopper 57 at the lower end of each stopper 57 so that both side end portions of the workpiece M placed on the conveyor belt 31 can be scraped up. The scraping member 59 is a lightweight cover positioned in both end regions of the conveyor belt 31 where the distance between the rotating brush 41 and the workpiece M on the conveyor belt 31 is large and interference between the two may be insufficient. This is for forcibly scooping up the processed material on the conveyor belt 31. Thereby, the opportunity to make it interfere with the rotating brush 41 can be increased, and a lightweight to-be-processed object can be selected more reliably.
[0044]
Accordingly, the material of the scraping member 59 is provided with an elastic force and wear resistance that can scrape the workpiece M up above the conveyor belt 31 while being in contact with both end portions of the workpiece M. For example, an elastic material such as rubber or hard sponge can be suitably used. A small disc brush may be used.
[0045]
As shown in FIGS. 4 and 6, the belt protection roller 53 is provided at each of an inlet portion and an outlet portion of the sorting device 40, and is a single horizontal roller that guides the conveyance belt 31 horizontally with respect to the lower casing 50. And two inclined rollers for guiding both end portions of the conveyor belt 31 to a state where they are lifted obliquely upward by a predetermined amount. FIG. 6 shows the outlet side of the sorting device 40, but three rollers are similarly provided on the inlet side.
The belt protection roller 53 prevents the belt from being slidably contacted with the peripheral edge of the lower casing 50 to damage or wear the belt, and the workpiece M is curved by curving the belt 31 in an arc shape. There is also an effect of increasing the area for causing the rotating brush 41 to interfere and improving the scraping efficiency.
[0046]
Next, the operation of sorting by the sorting conveyor 100 of this embodiment will be described.
In the sorting conveyor 100, first, the workpiece M is supplied to the workpiece supply section 70 on the lower side of the inclination of the sorting conveyor 100 shown in FIG. 1, and is placed on the conveyor belt 31 of the sorting device belt conveyor 30. The workpiece M is transported along the transport direction A.
[0047]
When the object to be processed M is conveyed to the position of the first vibration roller 33, the object to be processed M on the conveyor belt 31 is given strong vibration by the rotation of the first vibration roller 33, and is leveled along the conveyance direction. Is done. In addition, a lightweight object to be processed having a small specific gravity rises, and a heavy object to be processed having a large specific gravity sinks.
Further, even when the object to be processed M is a water-containing processed object, the stuck objects to be processed M are loosened by vibration, and the presence on the surface of the conveyor belt 31 is prevented, and the reduction of the sorting efficiency due to the presence is prevented. It is possible to maintain the entire apparatus.
[0048]
Next, the magnetic separator 36 is operated as necessary to sort out iron scraps and the like in the workpiece M.
When the object to be processed M is conveyed to the position of the second vibration roller 34, the object to be processed M on the conveyor belt 31 is given a slight vibration due to the rotation of the second vibration roller 34, and the object M to be processed. In addition to smoothing the mounting surface, the bar or the like piercing the workpiece M is leveled.
As described above, the workpiece M is placed on the conveyor belt 31 in a state where the lightweight workpiece to be removed is easily sorted by the sorting device 40 due to the vibration of the first vibrating roller 33 and the second vibrating roller 34. Is done.
[0049]
Then, the workpiece M transported to the position of the sorting device 40 is vibrated by the third vibrating roller 55 so that mainly the lightweight workpiece jumps on the conveyor belt 31. Then, by rotating the rotating brush 41, the lightweight workpiece is selectively scraped up and sorted by being discharged from a discharge chute (not shown). This jumping operation of the lightweight workpiece produces an effect of easily catching on the bristle 48 of the rotating brush 41, and can further improve the sorting ability.
As described above, in the sorting conveyor 100 of the present embodiment, the lightweight workpieces in the workpiece M can be removed with a high separation and recovery rate, and the sorting capability is greatly improved. It can be obtained stably.
[0050]
In the sorting conveyor 100 of the first embodiment, in order to verify how much the separation and recovery rate of the object to be processed has been improved, the colored wood scrap is mixed with the weight object as a light object to be processed. The percentage of wood scrap that could be eliminated was visually determined. Here, wood scraps having a length of about 100 mm, a width of 20 to 30 mm, and a thickness of 10 to 20 mm were used.
As a result, in the sorting conveyor 100 of the first embodiment, about 70% of the mixed wood waste is eliminated, and about 50% of the case where a normal conveyor is used without using the sorting apparatus conveyor 30 according to the present invention. As a result, it was confirmed that it was possible to sort at a higher separation and recovery rate.
[0051]
In the sorting conveyor 100 in the above embodiment, the sorting device 40 is installed on the sorting device conveyor 30 according to the present invention. However, the present invention is not limited to this, and other sorting devices are combined. It is good also as a structure.
FIG. 11 is a schematic side view showing a main part of a sorting conveyor 200 according to a second embodiment in which the sorting device 40 and the sorting device 1 are installed on the sorting device belt conveyor 30 according to the embodiment of the present invention.
[0052]
The sorting conveyor 200 has the sorting conveyor 100 of the first embodiment described above as a first-stage sorting unit, and a second-stage sorting unit is provided after the first-stage sorting unit. The separation / recovery rate is further improved by re-sorting the workpieces sorted by the eye sorting unit in the second-stage sorting unit.
[0053]
Hereinafter, the second-stage sorting unit will be described with reference to FIGS. Specifically, as shown in FIG. 12, the sorting device 1 in the second stage sorting unit includes a device frame 2 that is appropriately suspended by a lifting tool 18 on the upper mounting portion 16 of the processing facility, and the like. A rotating brush 5 in which a shaft 4 having brush bristles 3 implanted on the outer periphery thereof is rotatably supported by a bearing portion 2a mounted on the apparatus frame 2, and a rotating brush 5 installed on the apparatus frame 2 to form a sprocket or A gap S is provided between the brush drive motor 7 that is driven to rotate via a transmission means 19 such as a chain and the tip of the brush bristles 3 as a predetermined distance from the rotary brush 5, and the crossing is performed. The surface shape is formed in a substantially arc shape centering on the axis 4 of the rotating brush 5, and the substantially bowl-shaped selecting chute 9 disposed below the rotating brush 5, and the selecting chute 9 vibrates in the axial direction of the rotating brush 5. A vibration motor 11 as a vibrating means to be caused; And a processing object hopper 14 for the workpieces M had a treatment object supply opening 13 for supplying the upstream end of another chute 9.
In addition to such a suspended configuration, an installation table or an installation structure on the ground may be used.
[0054]
The rotary brush 5 is supported by the bearing portion 2a in a posture in which the shaft 4 is inclined at a predetermined inclination angle. The rotating brush 5 is configured in substantially the same manner as the rotating brush 41 of the sorting device 40.
The sorting chute 9 is substantially the same as the shaft 4 of the rotating brush 5 so that the workpiece M slides at an appropriate speed in the direction of the axis 4 of the rotating brush 5 in a state where it is vibrated by the exciting force of the vibration motor 11. It is arranged below the rotating brush 5 in an inclined state.
[0055]
Then, the sorting chute 9 is upstream of the area where the rotating brush 5 is present, and before the scraping by the rotating brush 5 starts, the lightweight processing object is raised above the workpiece M by the vibration of the sorting chute 9 itself. The pre-conveying part 9c for advancing the separation state to some extent is provided with an appropriate length. Further, as shown in the figure, the sorting chute 9 has a sorting hole 9a for dropping a heavy object to be processed whose particle diameter is equal to or smaller than a predetermined diameter.
[0056]
The sorting chute 9 has a center of gravity position adjustable by a balance weight 21 connected to the upper end of the sorting chute 9. The vibration motor 11 is installed at the center of gravity position.
Furthermore, as shown in FIG. 13, the sorting chute 9 has an upper edge portion 9 b on both sides so that the light-weight workpieces scraped in the circumferential direction by the rotational force of the rotating brush 5 do not inadvertently scatter around. The gap between the tip of the brush bristles 3 is narrowed. Then, on the scraping side of the object to be processed, which is the rotation direction of the rotating brush 5 shown by the arrow (A) in FIG. 13, the lightweight processing object in which the brush bristles 3 are scraped slightly above the upper edge 9 b of the sorting chute 9. A scraper 23 for dropping an object in a predetermined direction / position indicated by an arrow (b) is provided. The scraper 23 is supported by a column 25 suspended from the apparatus frame 2.
[0057]
Next, the operation of the sorting device 1 will be described.
In the sorting apparatus 1, the workpiece M sorted by the first stage sorting unit is supplied to the sorting chute 9 from the workpiece feed port 13, and the sorting chute 9 is vibrated by the vibration motor 11, The rotating brush 5 is rotationally driven by a brush drive motor 7. In other words, the light processing object in the processing object M is scraped in the circumferential direction of the sorting chute 9 by the vibration of the sorting chute 9, the sliding action on the sorting chute 9, and the scraping action by the rotating brush 5. The scraper 23 collects the outside of the sorting chute 9 outside the side, and the particles having a particle diameter smaller than the sorting hole 9a are dropped from the sorting hole 9a below the sorting chute 9 and collected. On the other hand, those having a particle size larger than the sorting hole 9 a and relatively heavier are collected at the lower end outlet of the sorting chute 9.
[0058]
In addition, when the sorting chute 9 has a structure having a sorting hole for dropping a heavy workpiece having a particle size of a predetermined value or less, the sorting chute 9 not only separates the heavy workpiece from the lightweight workpiece but also recycles it. It becomes possible to sort for each particle size according to the intended use, and it is possible to achieve multiple functions and high performance of the sorting.
[0059]
The specific structure of the components of the sorting apparatus 1 according to the present embodiment including the support structure of the sorting apparatus 1 and the opening / closing mechanism of the gate 15 is not limited to the illustrated example. It goes without saying that the design can be changed as appropriate without departing from the spirit of the present invention.
[0060]
In addition, when processing a construction waste material having a size of 0 to 40 mm as a workpiece to be input, the amplitude of the vibration motor 11 as a vibration means is 2 to 5 mm, the frequency is 20 to 30 Hz, and the acceleration at this time Is suitably about 3.6G, which can promote separation of light and relatively heavy items. Further, the rotational speed of the rotating brush 5 depends on the rigidity and length of the brush bristles 3, but if the diameter of the rotating brush 5 is 500 mm, rotation of about 50 to 100 rpm is an appropriate range.
[0061]
Here, in the sorting conveyor 200 of the second embodiment, in order to verify how much the separation / recovery rate of the object to be processed has been improved, the sorting is performed in the same manner as in the sorting apparatus 10 of the first embodiment described above. The wood scrap was mixed with the heavy workpiece as a lightweight workpiece, and the percentage of the wood scrap that could be finally removed was visually determined.
As a result, it was confirmed that about 85% of the mixed wood waste was eliminated, and it was possible to sort at a higher separation and recovery rate.
[0062]
As described above, according to each of the above-described embodiments, the first and second vibrating rollers 33 and 34 provided on the sorting device belt conveyor 30 are vibrated to the conveying belt 31, thereby The light-weight object to be processed can be floated on the upper layer, and the light-weight object to be lifted can be picked up by the rotation of the rotating brush 41 and discharged from the conveying belt 31. At this time, further vibration is applied by the third vibrating roller 55 installed below the rotating brush 41, so that the light object to be transported immediately below the rotating brush 41 jumps on the conveying belt 31 and is scraped by the rotating brush 41. The raising effect can be promoted.
[0063]
In this way, the combination of the exciting action by the first and second vibrating rollers 33 and 34 and the third vibrating roller 55 of the sorting apparatus belt conveyor 30 and the scraping action by the rotating brush 41 of the sorting apparatus 40 is used. The separation and recovery rate of the product can be greatly increased.
Even if the supply amount of the object to be processed varies, the object to be processed is leveled along the conveying direction by the vibration action of the first and second vibrating rollers 33 and 34, and the separation recovery rate of the sorting device 40 is increased. The decrease can be suppressed, and a high separation recovery rate can be stably maintained.
Furthermore, since each vibration roller uses the driving force of the conveyor belt 31 as a power source, there is no need to provide a separate driving device, the installation space and the required output of the driving source can be minimized, and the equipment cost is reduced. Can be achieved.
[0064]
【The invention's effect】
As described above, according to the belt conveyor for a sorting apparatus of the present invention, the conveyor belt to be driven is imparted with the required vibration by the step between the protrusion of the vibration roller and the outer peripheral surface, so that Since a required vibration can be applied to the workpiece, it is not necessary to use a separate vibration device.
And the to-be-processed object on the conveyance belt provided with the vibration is leveled along the conveyance direction, and the supply amount to the sorting device is averaged.
[0065]
In addition, even when the object to be processed is a water-containing object, the attached objects to be processed are loosened by vibrations and are prevented from being attached to the surface of the conveyor belt. Since the workpiece is lifted to the upper layer, it is possible to satisfactorily perform the sorting process of the lightweight workpiece and the heavy workpiece by the subsequent sorting apparatus.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram showing a sorting conveyor of a first embodiment in which a sorting device is installed on a belt conveyor for a sorting device according to an embodiment of the present invention.
FIG. 2 is an enlarged perspective view of a main part showing a mounting state of a first vibrating roller in the sorting apparatus belt conveyor shown in FIG. 1;
FIG. 3 is a side view of first and second vibrating rollers of the belt conveyor for the sorting apparatus shown in FIG. 1;
4 is a front view showing the configuration of the sorting apparatus shown in FIG. 1. FIG.
FIG. 5 is a plan view of the sorting device of FIG. 4 as viewed from above.
6 is a side view as seen from the direction of arrow B in FIG. 4. FIG.
7 is a side view showing a modified example of the first vibrating roller shown in FIG. 3. FIG.
8 is an essential part enlarged perspective view showing a modification of the vibrating roller support structure shown in FIG. 2. FIG.
9 is a front view of the vibrating roller support structure shown in FIG. 8. FIG.
10 is an enlarged perspective view of a main part in a state in which a rock fall prevention skirt is disposed on the vibration roller support structure shown in FIG. 8;
FIG. 11 is a schematic side view showing a main part of a sorting conveyor according to a second embodiment in which two sorting devices are installed on the belt conveyor for a sorting device according to an embodiment of the present invention.
12 is a side view of an essential part showing a configuration of a sorting device in the sorting conveyor of the second embodiment shown in FIG. 11. FIG.
13 is a cross-sectional view taken along line AA in FIG.
[Explanation of symbols]
30 Belt conveyor for sorting equipment
31 Conveyor belt
32a, 32b Belt pulley
33 First vibrating roller
33a Roller body
33b Protrusion
34 Second vibrating roller
34a Roller body
34b Protrusion
35 Flat roller
40 sorter
41 Rotating brush
100 sorting conveyor

Claims (1)

With the movement of the conveyor belts (31) of the on multiple carriers rows La (33,34,35), conveying an object to be processed placed on the conveying belt sorting equipment (36, 40) a sorting apparatus belt conveyors to (100),
At least a portion of said carrier rollers, with consists of the roller body is a flat roller (33a, 34a) protruding portions of the required shape out peripheral surface of (33b, 34b) vibrating roller having a (33, 34) and imparts the necessary vibration to selection of the object relative to the conveyor belt by the step difference between the outer peripheral surface and the projection,
The protrusions (33b, 34b) are composed of rod members fixed to the outer peripheral surface of the roller body (33a, 34a) in parallel to the axial direction and at equal intervals.
The vibration roller is provided with a first vibration roller (33) disposed on the upstream side in the conveyance direction, and a second vibration roller disposed downstream of the first vibration roller to apply a weaker vibration to the conveyance belt than the first vibration roller. The vibration roller (34) and
Furthermore, the number of bar member and the diameter which is fixed to the outer peripheral surface of the first vibrating roller, the second sorting device for a belt conveyor, characterized in that it is a small and larger diameter than the number of vibratory roller bar members .

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