JP6095084B1 - Transport device - Google Patents

Abstract

A transport apparatus capable of stably transporting a product without clogging a transported object is provided. In the apron conveyor 50 of the transport device 80, a right apron portion 59a in which a right scraper 58a continues and a left apron portion 59b in which a left scraper 58b continues scrape a transported object alternately. For this reason, the accumulation state of a conveyed product becomes unbalanced, and clogging hardly occurs. One of the left and right side walls on the supply port 39 side of the supply hopper 30 is constituted by a vertical portion 34 a and the other is an inclined portion 36. As a result, imbalance in the accumulated state is promoted, and clogging of the conveyed product can be further prevented. [Selection] Figure 3

Description

  The present invention mainly relates to a transfer device for biomass fuel, solid waste fuel, and the like.

  In recent years, from the viewpoints of reducing carbon dioxide emissions and environmental issues, biomass fuels using woody materials and livestock waste, RDF (Refuse Delivered Fuel) and RPF (Refuse Paper and) using combustible waste as raw materials The use of solid waste fuel such as Plastic Fuel) has attracted attention. Recycled solid fuel such as biomass fuel and waste solid fuel is generally in the form of chips or pellets, and a conveying device equipped with a supply hopper is often used to supply combustion equipment to a boiler or the like. However, these regenerated solid fuels tend to be clogged in the supply hopper, and there is a problem that it is difficult to stably transport and supply to the combustion equipment. Regarding this problem, the following [Patent Document 1] describes a transfer conveyor provided with protrusions on the surface of the conveyor.

JP 2011-236034 A

  However, simply providing a simple protrusion on the surface of the conveyor cannot completely prevent clogging of the regenerated solid fuel, and further improvement is desired for stable conveyance of the regenerated solid fuel.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a transport apparatus capable of stably transporting the solid fuel without clogging.

The present invention
(1) In a transport apparatus having a supply hopper 30 having an open bottom surface and an apron conveyor 50 provided below the supply hopper 30.
The apron conveyor 50 includes a right apron pan 52a having side wings 56 standing upright at both ends and a right scraper 58a substantially parallel to the long side and provided on the right side from the center, and side wings 56 standing upright at both ends. A left apron pan 52b having a left scraper 58b substantially parallel to the side and provided on the left side from the center, and a right apron portion 59a in which a plurality of the right apron pans 52a are continuously connected, The left apron section 52b in which a plurality of the left apron pans 52b are continuously connected to each other is connected alternately.
Furthermore, the side wall in the long side direction of the supply hopper 30 has a first side wall 32a whose bottom side is vertical (vertical part 34a) and whose upper side is inclined outward (inclined part 34b), and whose bottom side is inclined inward (inclined part 36). The above-mentioned problem is solved by providing a transfer device 80 having the second side wall 32b.
(2) A stirring rod 70 is provided on the downstream side in the supply hopper 30, and the stirring rod 70 is pivotally supported by the vertical portion 34a of the first side wall 32a and the inclined portion 36 of the second side wall 32b. The above-mentioned problem is solved by providing the transport device 80 according to the above (1), wherein the transport object in the supply hopper 30 is rotated so as to be scraped upward from the lower side.
(3) A plurality of stirring rods 70 are provided in the vertical direction, and a long rod-like projection 74a and a short rod-like projection 74b are alternately provided on the circumferential surface of the stirring rod 70. The above problem is solved by providing the transfer device 80 described in (2) above.
(4) The above-mentioned problem is solved by providing a transport device 80 ′ characterized in that two transport devices 80 according to any one of (1) to (3) are connected in parallel.

  In the apron conveyor of the transport device according to the present invention, the right apron portion where the right scraper is continuous and the left apron portion where the left scraper is continuous scrape the conveyed product alternately. For this reason, it is hard to clog a conveyed product, and a conveyed product can be conveyed stably.

It is a schematic block diagram which shows the inside of the conveying apparatus which concerns on this invention from a side surface direction. It is a schematic block diagram which shows the inside of the conveying apparatus which concerns on this invention from the front side. It is a figure which shows the apron pan of the conveying apparatus which concerns on this invention. It is a figure explaining the apron conveyor of the conveying apparatus which concerns on this invention. It is a figure explaining the stirring rod of the conveying apparatus which concerns on this invention. It is a figure which shows the conveying apparatus which concerns on this invention connected 2 units | sets in parallel.

  An embodiment of a transfer device 80 according to the present invention will be described with reference to the drawings. Here, FIG. 1 is a schematic configuration diagram showing the inside of the conveying device 80 according to the present invention from the side surface direction. FIG. 2 is a schematic configuration diagram showing the inside of the transport device 80 from the front side (the carry-out side). In this example, the regenerated solid fuel is described as an example of the transported material. However, the transported material is not particularly limited to the regenerated solid fuel. For example, feed, fertilizer, various raw materials, etc. It is possible to apply to a member.

  The transport device 80 according to the present invention is mainly configured by a supply hopper 30 into which a transported product such as a regenerated solid fuel is charged, and a transport unit 60 that is located below the supply hopper 30 and includes an apron conveyor 50. Yes. The supply hopper 30 includes a body portion 32 composed of a straight body portion 38 located at the upper portion, two side walls on the short side, a first side wall 32a on the long side and a second side wall 32b, And a supply port 39 having an open bottom. The first side wall 32a is composed of a vertical portion 34a whose bottom surface side (lower side) is vertical, and an inclined portion 34b which is located above the vertical portion 34a and is inclined so as to expand outward. Further, the second side wall 32b has an inclined portion 36 having at least a bottom surface inclined inward. In FIG. 2, the entire second side wall 32 b is configured by the inclined portion 36, but the second side wall 32 b has at least a portion facing the vertical portion 34 a of the first side wall 32 a as the inclined portion 36. Just do it.

  The transport unit 60 located below the supply hopper 30 includes an apron conveyor 50, a drive motor 62 that rotates and transports the apron conveyor 50, and a rotational driving force of the drive motor 62 at a predetermined gear ratio. And a transmission unit 64 that decelerates and transmits to the apron conveyor 50.

  Next, the apron conveyor 50 of the transport device 80 according to the present invention will be described. First, the apron pan which comprises the apron conveyor 50 of this invention is comprised by the right apron pan 52a shown to Fig.3 (a), and the left apron pan 52b shown in FIG.3 (b). In addition, the white arrow in FIG. 3 and below-mentioned FIG. 4 shows the conveyance direction of the apron conveyor 50. FIG. The right apron pan 52a includes an elongated plate-like bread body portion 54, side wings 56 standing upright at substantially both ends of the bread body portion 54, and substantially parallel to the long side of the bread body portion 54. And a right scraper 58a provided upright on the portion. The left apron pan 52b includes an elongated plate-like bread main body portion 54, side wings 56 standing upright at substantially both end portions of the bread main body portion 54, and substantially parallel to the long side of the bread main body portion 54. And a left scraper 58b provided upright on the part. In addition, the side wing 56 of the apron pan is formed with an inclination or a step so as to partially overlap at the time of connection and close the side of the apron conveyor 50.

  In the apron conveyor 50, as shown in FIG. 4, a right apron portion 59a in which a plurality of right apron pans 52a are continuously connected and a left apron portion 59b in which a plurality of left apron pans 52b are continuously connected are alternately arranged. Concatenated and configured. The continuous number of the right apron pan 52a and the left apron pan 52b varies depending on the scale of the apparatus, the length of the apron conveyor 50, and the like, but preferably 3 to 8 sheets each, and more preferably 3 to 5 sheets.

  Furthermore, the conveying device 80 according to the present invention may have a stirring bar 70 on the downstream side (unloading side) in the supply hopper 30. A plurality of stirring bars 70 are preferably provided in the vertical direction, and most preferably two are provided. Further, the stirring rod 70 is preferably provided below the supply hopper 30, and therefore the stirring rod 70 is preferably supported by the vertical portion 34a of the first side wall 32a and the inclined portion 36 of the second side wall 32b. . Further, the rotation direction of the stirring bar 70 is preferably rotated so as to scrape the conveyed product in the supply hopper 30 from the lower side to the upper side as indicated by the white arrow in FIG. The rotation of the stirring rod 70 is preferably performed by the drive motor 62 of the transport unit 60 in terms of the equipment configuration.

  Next, the stirring rod 70 will be described in more detail with reference to FIG. As shown in FIG. 5A, the stirring rod 70 includes a rotating shaft 72 that is pivotally supported by a vertical portion 34a of the first side wall 32a of the supply hopper 30 and an inclined portion 36 of the second side wall 32b. It has rod-like protrusions 74 a and 74 b protruding from the peripheral surface of the shaft 72. As the stirring rod 70 of the present invention, it is particularly preferable to use a stir bar 70 having a long bar-like projection 74a and a short bar-like projection 74b provided alternately at different angles. As such a stirring rod 70, as shown in FIG. 5B, three long rod-shaped protrusions 74a are radially arranged on the same plane of the rotating shaft 72, and a predetermined distance from the rod-shaped protrusion 74a. In addition, as shown in FIG. 5 (c), it is preferable that the rod-shaped protrusions 74b having a short length are shifted radially by 60 ° and installed in a radial pattern, and these are alternately provided. When a plurality of stirring rods 70 are installed, as shown in FIG. 5 (a), the positions of the rod-like projections 74a and 74b are shifted by a half pitch between the upper and lower stirring rods 70, and the rod-like projections 74a, It is preferable that the position 74b is located between the upper and lower stirring rods 70.

  Further, when a large amount of transported material is transported, as illustrated in FIG. 6, two transport devices 80 according to the present invention may be connected in parallel to form a large capacity transport device 80 '. In this configuration, the capacity of the supply hopper 30 is almost doubled, and the upper limit of the conveyance capability is also improved about twice.

  Next, the operation of the transport device 80 according to the present invention will be described. First, a conveyed product such as a regenerated solid fuel is put into the supply hopper 30. Next, the transfer device 80 is activated. Thereby, the drive motor 62 of the transport unit 60 is driven. The rotational driving force of the drive motor 62 is decelerated to a predetermined torque by the transmission unit 64 and then transmitted to the apron conveyor 50. Thereby, the apron conveyor 50 rotates and conveys a predetermined amount continuously from the supply port 39 of the supply hopper 30.

  At this time, in the apron conveyor 50 of the transport device 80 according to the present invention, the right apron part 59a in which a plurality of right apron pans 52a are continuous and the left apron part 59b in which a plurality of left apron pans 52b are continuous are alternately connected. Therefore, the right apron part 59a and the left apron part 59b operate so as to scrape the conveyed product in the supply hopper 30 alternately on the right side and the left side. Here, if the scraper is not divided into left and right, and it is a single plate along the long side direction, only the transported part of the scraped part is transported in the same way as before to scrape the transported object evenly on the left and right. It is thought that things are clogged. Further, even when the right apron pan 52a and the left apron pan 52b are alternately connected one by one, the conveyed product may be scraped substantially evenly and may be jammed. On the other hand, the apron conveyor 50 according to the present invention has a certain length in which the right apron portion 59a having a certain length in which a plurality of right apron pans 52a are continuous and a plurality of left apron pans 52b are continuous as described above. The left apron parts 59b having are alternately connected. As a result, the right apron portion 59a scrapes the conveyed item on the right side of the supply hopper 30 continuously for the length, and the left apron portion 59b scrapes the conveyed item on the left side of the supply hopper 30 continuously for the length. take. By alternately performing these operations, the conveyed product in the supply hopper 30 is scraped alternately to the right, left, right, and left, and the accumulation state becomes unbalanced on the left and right each time. At this time, a shearing force acts between the left and right transported objects. The left and right alternate scraping, the unbalance of the accumulated state of the conveyed product and the occurrence of shearing stress, etc. prevent clogging of the conveyed product, and the conveying device 80 according to the present invention stably conveys the conveyed item. Can be transported and supplied.

  Still further, in the conveying device 80 according to the present invention, one of the left and right side walls on the supply port 39 side of the supply hopper 30 is configured by a vertical portion 34 a and the other is configured by an inclined portion 36. For this reason, the slip of the conveyed product and the transmission of the scraping force from the apron conveyor 50 are different on the left and right, and this further promotes the unbalance of the conveyed product. Thereby, clogging of a conveyed product can be further prevented.

  Further, the rotational driving force of the drive motor 62 is transmitted to the stirring rod 70 to rotate the stirring rod 70. Here, the conveyed product in the supply hopper 30 is conveyed first from the upstream side as indicated by the black arrow in FIG. 1 by the conveying operation of the apron conveyor 50. For this reason, when the stirring bar 70 is not provided, the conveyed product is compressed to a high density in the lower part on the downstream side of the supply hopper 30, that is, the region A in FIG. 1, and this causes clogging. In this regard, the conveying device 80 according to the present invention includes the stirring rod 70 in this portion. A plurality of the stirring rods 70 are provided in the vertical direction, and rotate so as to scrape the conveyed product from the lower side to the upper side. Thereby, the conveyed product of A area | region is scraped up and is not compressed. Further, the scraping operation by the stirring rod 70 causes a preferable convection in the direction opposite to the rotation direction of the apron conveyor 50 in the supply hopper 30 for the conveyed product. Thereby, clogging of a conveyed product is prevented further.

  In addition, the conveyed product quantitatively conveyed by the apron conveyor 50 falls at the terminal end of the apron conveyor 50, and is discharged outside through the discharge port 12. The discharged transported material is transported, for example, to a charging port of a combustion device such as a boiler or other equipment and machinery by another belt conveyor or a screw conveyor.

  As described above, in the apron conveyor 50 of the transport device 80 according to the present invention, the right apron portion 59a in which the right scraper 58a is continuous and the left apron portion 59b in which the left scraper 58b are continuous scrape the conveyed product alternately. For this reason, the accumulation state of a conveyed product becomes unbalanced, and clogging hardly occurs. One of the left and right side walls on the supply port 39 side of the supply hopper 30 is constituted by a vertical portion 34 a and the other is an inclined portion 36. As a result, imbalance in the accumulated state is promoted, and clogging of the conveyed product can be further prevented. Furthermore, the conveying device 80 according to the present invention has a stirring rod 70 on the downstream side in the supply hopper 30. Then, the stirring rod 70 rotates so as to scoop up the conveyed product from the lower side to the upper side, so that a preferable convection is generated in the conveyed product in the supply hopper 30. Thereby, clogging of a conveyed product can be prevented further. And the conveying apparatus 80 which concerns on this invention can be stably conveyed and supplied to the equipment machinery apparatus side without clogging a conveyed product by providing said structure.

  In addition, the structure of the conveying apparatuses 80 and 80 ′ shown in this example is an example, and the shape, dimensions, operation mechanism, and the like of each member can be changed and implemented without departing from the gist of the present invention. is there.

30 Supply hopper
32a first side wall
32b second side wall
34a Vertical section
34b inclined part (of first side wall)
36 Inclined part (of second side wall)
50 Apron conveyor
52a Right apron pan
52b Left apron pan
56 side wing
58a right scraper
58b Left scraper
59a Right apron club
59b Left apron part
70 Stir bar
74a, 74b Rod projection
80, 80 'conveyor

Claims (4)

In a transport apparatus having a supply hopper with an open bottom and an apron conveyor provided below the supply hopper,
The apron conveyor includes a right apron pan having side wings standing on both ends and a right scraper provided on the right side from the center substantially parallel to the long side, and side wings standing on both ends and substantially parallel to the long side. A left apron pan having a left scraper provided on the left side from the center, a right apron portion in which a plurality of the right apron pans are continuously connected, and a plurality of the left apron pans in succession The connected left apron parts are connected alternately,
Further, the long side wall of the supply hopper includes a first side wall whose bottom surface is vertical and whose upper side is inclined outward, and a second side wall whose bottom surface is inclined inward. . A stir bar is provided on the downstream side in the supply hopper, and the stir bar is pivotally supported by the vertical portion of the first side wall and the inclined portion of the second side wall. The conveying apparatus according to claim 1, wherein the conveying apparatus rotates so as to be scraped upward. 3. The transport according to claim 2, wherein a plurality of stirring rods are provided in a vertical direction, and a long protrusion and a short protrusion are alternately provided on a peripheral surface of the stirring rod. apparatus. A conveying apparatus comprising two conveying apparatuses according to any one of claims 1 to 3 connected in parallel.

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