JP2008087909A - Product conveying device in dechlorination facility - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a small-sized, safe, and highly efficient product conveying device in a dechlorination facility, which almost has no worn portion by the combination of a vertical bucket conveyor with a diagonally feeding pipe. <P>SOLUTION: This product conveying device 1 in the dechlorination facility comprises at least the vertical bucket conveyor 11 and the diagonally feeding pipe 17. A product conveyed from the lower part of the vertical bucket conveyor 11 by a bucket 14 flows down onto a net conveyor 5 through the diagonally feeding pipe 17, separated from water, and fed into a sieving device 6. Consequently, the wear of the product on the device side due to the conveyance can be eliminated. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a product conveying apparatus in a dechlorination facility, and in particular, a novel structure for obtaining a compact, safe and efficient configuration with few wear parts by a combination of a vertical bucket conveyor and an inclined transfer pipe. Regarding improvement.

  In recent years, plastics that have been disposed of in large quantities have been recycled. If plastics that contain chlorine such as vinyl chloride are mixed in these discarded plastics, environmental protection and material improvement can be achieved. From the viewpoint, removal of chlorine, that is, dechlorination is performed. As one method of this dechlorination treatment, a method of using an extruder as a dechlorination machine has been implemented. That is, waste plastics from which impurities such as metals have been removed by pretreatment are supplied to an extruder, melted and kneaded, and impure gas containing gasified chlorine is exhausted and removed, and a granular product is passed through a cutter device. Is produced as.

  The product discharged from this dechlorinator is usually extruded in the form of a string of molten plastics, cut into granules of an appropriate length immediately after extrusion, cooled and solidified with cooling water, and then the cooling water is separated. , Dehydrated, sorted and accumulated. In such a recycling process of waste plastics, the waste plastics are continuously supplied to the dechlorination machine, and recycled products are continuously produced.

  A conventional product conveying apparatus is shown in FIG. In FIG. 2, what is indicated by reference numeral 1 is a product transport device, which includes a receiving water tank 1a, a discharge tank 1c, a transport pipe 1e connecting the receiving water tank 1a and the discharge tank 1c, and a return. It is comprised by the pipe conveyor comprised in the closed loop state by the pipe 1f. In addition, the closed loop constituted by these includes a chain (not shown) connected endlessly, and blades are assembled to the chain at appropriate intervals so that the chain can be driven to move within the closed loop. It is configured.

  The receiving water tank 1a of the product conveying device 1 is disposed near the tip of the dechlorination machine 2, and the cutter device 3 is assembled at the tip. Below the cutter device 3, a chute 4 that is inclined downward is disposed. The chute 4 is provided with spray nozzles 4a above a plurality of locations in the inclined direction so that cooling water can be sprayed on the surface thereof. A discharge port 1d is formed in the discharge tank 1c of the product conveying device 1, and a sieving device 6 is disposed below the discharge port 1d. An auxiliary water tank 1 g is provided on the transfer pipe 1 e of the product transfer apparatus 1.

  In the product conveying apparatus 1 configured as described above, waste plastics are melted and kneaded in the dechlorination machine 2, dechlorinated, and extruded from the tip of the dechlorination machine 2 into a string shape. It is cut into granules and discharged continuously. The product cut into granules is cooled by flowing down the surface of the chute 4 on which the cooling water is sprayed by the spray nozzle 4a. Then, it flows sequentially into the receiving water tank 1a together with the cooling water.

  In addition, a chain (not shown) connected endlessly and assembled with blades at appropriate intervals is driven and moved in the transport pipe 1e and the return pipe 1f, so that the receiving water tank is received together with the cooling water. The product that has flowed into 1a is conveyed by the blade along the conveying pipe 1e to the discharge tank 1c together with the cooling water. During this conveyance, the granular product is gradually cooled by the cooling water, and the cooling water is separated in the discharge tank 1c and discharged from the discharge port 1d to the sieving device 6 in the next step. In addition, since the above-mentioned conventional structure is only an in-house production and the patent application is not filed, the patent document etc. for showing the conventional structure are not disclosed here.

  Since the product conveyance device in the conventional dechlorination facility is configured as described above, the following problems exist. In other words, the product conveying device composed of a pipe conveyor has a long conveying distance (for example, 20 m), and the pipe, which is the main component of the pipe conveyor, bends in a narrow space in the building or between devices appropriately in three dimensions. However, as a result, the route, that is, the transport distance becomes longer and the number of bent portions increases.

  In addition, the pipe becomes longer and the number of bent portions increases, so that the chain having the blade becomes longer, the contact resistance with the inner periphery of the pipe increases, a large amount of driving force is required, and the amount of wear of the member increases. The frequency of parts replacement increases, and productivity is reduced due to maintenance stoppage such as part replacement. Furthermore, when the pipe is installed across the floor of the work passage, it hinders the passage of workers and the like, and the workability is reduced.

  A product conveying apparatus in a dechlorination facility according to the present invention includes at least a vertical bucket conveyor and an inclined transfer pipe, and a chute of a chute in which a receiving port formed at a lower portion of the vertical bucket conveyor is disposed at a front end portion of the dechlorination machine. An outlet formed in an upper part of the vertical bucket conveyor is located above the inlet of the inclined transfer pipe, an outlet of the inclined transfer pipe is located above the wire mesh conveyor, The discharge end is located above the sieving device, and a cooling water spray nozzle is provided in the vertical bucket conveyor and at the inlet of the inclined transfer pipe.

  Since the product conveyance device in the dechlorination facility according to the present invention is configured as described above, the following effects can be obtained. That is, since the product conveying device is composed of at least a vertical bucket conveyor and an inclined transfer pipe, the product is first moved vertically from the position of the dechlorination machine to a high place in the building by the vertical bucket conveyor. Then, it is conveyed linearly by the inclined transfer pipe to the sieving device. As a result, there are almost no conveyance paths in which the conventional wear action of strength occurs.

  In addition, the inclined transfer pipe has a product that is conveyed by the natural flow of cooling water inside, so that the amount of wear is extremely reduced, there is no drive unit, the frequency of parts replacement is low, and productivity is lowered. Disappears.

  In addition, the product is sufficiently cooled by the provision of the cooling water spray nozzles on the vertical bucket conveyor and the inclined transfer pipe.

  The present invention provides a product conveying apparatus in a dechlorination facility that is small, safe, and efficient with few wear parts by conveying a product by combining at least a vertical bucket conveyor and an inclined transfer pipe. With the goal.

  Hereinafter, preferred embodiments of a product conveying device in a dechlorination facility according to the present invention will be described with reference to the drawings. The same or equivalent parts as those in the prior art will be described using the same reference numerals. In FIG. 1, what is denoted by reference numeral 1 is a product transport device, and this product transport device 1 is mainly composed of at least a vertical bucket conveyor 11 and an inclined transfer pipe 17.

  The vertical bucket conveyor 11 includes a conveyor container 12 installed vertically upright, an endlessly connected chain 13 that is rotatably supported and rotated at the upper and lower portions of the conveyor container 12, and a chain 13 For example, a plurality of buckets 14 assembled at equal intervals are provided at a plurality of locations in the moving direction. A receiving water tank 12a is formed in the lower part of the conveyor container 12, and a receiving port 12b is formed in the upper part of the receiving water tank 12a. A discharge port 12 c is formed in the upper part of the conveyor container 12. Cooling water spray nozzles 15 are provided at a plurality of locations along the wall surface of the conveyor container 12 on which the bucket 14 rises. A product sent from the cutter device 3 of the dechlorination machine 2 is sent to the receiving port 12b through a chute 4 having a spray nozzle 4a disposed above.

  The inclined transfer pipe 17 is formed of a cylindrical member that is disposed so as to be inclined downward, and has a receiving port 17a and a discharge port 17b. The inclined transfer pipe 17 is disposed at a high place in the building, and constitutes a transport passage that communicates between the vertical bucket conveyor 11 and a wire mesh conveyor 5 described later. A cooling water spray nozzle 16 is provided at the receiving port 17 a of the inclined transfer pipe 17. A wire mesh conveyor 5 and a cooling water receiving tank 5 a are provided on the downstream side of the inclined transfer pipe 17, and a sieving device 6 is provided below the wire mesh conveyor 5.

  Next, the operation will be described. First, waste plastics are melted and kneaded in the dechlorination machine 2, dechlorinated, extruded into a string, cut into particles by the cutter device 3, and continuously discharged. The product cut into granules is discharged to one end of the chute 4 where cooling water is sprayed by the spray nozzle 4a and cooled by the cooling water flowing down the surface of the chute 4, and the product is received at the inlet of the conveyor container 12. The cooling water sequentially flows from 12b into the receiving water tank 12a.

  A bucket 14 is rotationally driven in the conveyor container 12 through a chain 13 in the vertical direction, and the bucket 14 scoops up the product and conveys it upward. The product conveyed upward by the bucket 14 is cooled by spraying cooling water from the spray nozzle 15, the bucket 14 is inverted at the upper part of the conveyor container 12, and the conveyed product is discharged together with the cooling water, It is discharged into the inclined transfer pipe 17 from the discharge port 12c.

  In the inclined transfer pipe 17, the product discharged together with the cooling water from the discharge port 12c of the conveyor container 12 is discharged from the receiving port 17a through the discharge port 17b onto the wire mesh conveyor 5, and the cooling water is separated. 6 is discharged.

It is a block diagram which shows the product conveyance apparatus in the dechlorination facility by this invention. It is a block diagram which shows the product conveyance apparatus in the conventional dechlorination equipment.

Explanation of symbols

1 Product conveying device 2 Dechlorination machine (extruder)
3 Cutter device 4 Chute 4a Spray nozzle 5 Wire mesh conveyor 5a Drainage water tank 6 Sieving device 11 Vertical bucket conveyor 12 Conveyor container 12a Receiving water tank
12b receiving port 12c discharging port 13 chain 14 bucket 15 spraying nozzle 16 spraying nozzle 17 inclined transfer pipe 17a receiving port 17b discharging port

Claims (2)

  It has at least a vertical bucket conveyor (11) and an inclined transfer pipe (17), and a receiving port (12b) formed at the lower part of the vertical bucket conveyor (11) is disposed at the tip of the dechlorination machine (2). The discharge port (12c) formed at the upper part of the vertical bucket conveyor (11) is located above the inlet (17a) of the inclined transfer pipe (17), and is located at the outlet of the chute (4). The discharge port (17b) of the inclined transfer pipe (17) is located above the wire mesh conveyor (5), and the discharge end of the wire mesh conveyor (5) is located above the sieving device (6). Product transport equipment in dechlorination facilities.   The escape nozzle according to claim 1, characterized in that a cooling water spray nozzle (15, 16) is provided in the vertical bucket conveyor (11) and in the inlet (17a) of the inclined transfer pipe (17). Product transport equipment in chlorine facilities.

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