JP2006132129A - Method and apparatus for manufacturing asphalt plied timber - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and an apparatus for manufacturing asphalt plied timber, which enable the asphalt plied timber with mixed new plied timber to be also manufactured by making equipment costs as low as possible, in a factory where only a recycle plant is installed. <P>SOLUTION: The recycle plant 16 is annexed, and new plied timber accepting equipment 17 for accepting the new plied timber transported from an asphalt plant 1 is installed. The new plied timber is temporarily stored in storage bins 40a, 40b and 40c of the equipment 17. In the shipment of the plied timber in which the new plied timber and the recycled plied timber are mixed together, the new plied timber is paid out from any one of the storage bins 40a, 40b and 40c; a predetermined amount of plied timber is measured by a lower measuring tank 42 and charged into a mixer 43; a predetermined amount of recycled waste material is paid out from a storage silo 24 and supplied to a mixer 43 via a belt conveyor 49; and a predetermined amount of additive is added according to need, so that the desired asphalt plied timber can be manufactured. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a method and an apparatus for producing asphalt composite material which is a road pavement material.

  In order to reuse asphalt pavement waste material (hereinafter referred to as “waste material”) excavated by road construction, etc., the waste material is heated, and this heated and regenerated waste material (hereinafter referred to as “recycled composite material”) is designated as a new aggregate. It is practiced to produce asphalt composites by mixing in proportions. Therefore, a recycled composite material production plant (hereinafter referred to as “recycling plant”) that heats and recycles waste materials, and a new composite material production plant (hereinafter referred to as “asphalt plant”) that heats new aggregates to produce asphalt composites. Are mixed in the same site, and the regenerated mixture produced at the recycling plant is supplied to the mixer mounted on the plant body of the asphalt plant in a predetermined amount, mixed while adding asphalt, and the regenerated mixture is mixed. It is common practice to produce asphalt composites with a desired composition (Patent Document 1).

By the way, the asphalt mixture is usually heated to around 160 ° C., and this is transported to the pavement site with a transport vehicle, but the temperature of the asphalt mixture decreases with the passage of transport time. There is a limitation of the distance that can be transported, and there is an area that can supply asphalt compound from one plant factory. For this reason, another plant factory that supplies asphalt composites to an area where supply is not possible is established to expand the supply area.
Utility Kaihei 6-63606

  However, as mentioned above, when a fully equipped plant factory equipped with both an asphalt plant that produces new asphalt composites (hereinafter referred to as “new composites”) and a recycling plant that produces recycled composites, Then, there was a problem that a large amount of equipment costs were required.

  Therefore, in view of the above points, the present invention provides a method and apparatus for manufacturing an asphalt mixture capable of manufacturing an asphalt mixture in which a new mixture is mixed with a facility cost as low as possible in a factory where only a recycling plant is installed. It is an issue to provide.

  In order to solve the above problems, an asphalt composite material manufacturing apparatus of the present invention is provided in a recycling plant for manufacturing a recycled composite material, and a storage bin for receiving and storing a new composite material transported from the asphalt plant; , A measuring tank disposed below the storage bin, a mixer disposed below the measuring tank, an additive supply device for supplying the additive into the mixer, and a recycling plant And a transporting means for transporting the recycled composite material manufactured by the above method to the mixer.

  According to the present invention, a storage bin for receiving and storing a new composite material transported from an asphalt plant alongside a recycling plant for producing a recycled composite material, and a measuring tank disposed under the storage bin, In addition, a mixer disposed in the lower part of the measuring tank and an additive supply device for supplying the additive into the mixer are disposed, and the recycled mixture produced in the recycling plant is transferred to the mixer. This means that instead of having an asphalt plant on the same site as the recycling plant, only a new material receiving facility and other auxiliary facilities that accept new materials transported from the asphalt plant are installed. As a result of the installation, the equipment cost can be reduced, and asphalt composites can be produced by mixing recycled composites and new composites.

  According to the present invention, a new composite material receiving facility for receiving a new composite material transported from a remotely installed asphalt plant is installed alongside a recycling plant for producing recycled composite materials. The new composite material receiving facility includes a storage bin having a heating and heat insulation structure for storing the new composite material, and a measuring tank and a mixer for measuring and mixing the new composite material are disposed below the storage bin. . Further, an additive supply device for supplying an appropriate additive is provided in the mixer, and further, a transfer means for transferring the recycled composite material produced in the recycling plant to the mixer is provided.

  And when manufacturing the asphalt composite material mixed with the new composite material in the recycling plant factory, first, the new composite material manufactured in the asphalt plant for manufacturing the new composite material is transported to the recycling plant factory by the transport vehicle, Once stored in the storage bin of the new compound receiving facility. Then, at the time of shipment, a new composite material is dispensed from the storage bin, and after a predetermined amount is metered, it is put into a mixer, and a recycled composite material manufactured at a recycling plant is put into the mixer, and a predetermined amount of additive is added as necessary. A predetermined asphalt mixture is produced by mixing while charging.

  In this way, since new composite materials are carried into the recycling plant factory from an asphalt plant installed remotely, only new composite material receiving equipment that accepts new composite materials and other necessary incidental facilities are installed. No need for heating and drying equipment to produce new composites, and the equipment cost is low, so it can be easily expanded. It is also convenient to ship asphalt composites in which new composites and recycled composites are mixed.

  Embodiments of the present invention will be described below with reference to the drawings.

  In the figure, 1 is a known asphalt plant that becomes a new composite material supply base, which is a dryer 2 for heating and drying new aggregate, a dust collector (not shown) for capturing dust scattered from the dryer 2, and heating. It consists of a plant body 3 for storing, weighing and mixing aggregates, and other auxiliary equipment.

  The dryer 2 rotatably supports a cylindrical drum having a large number of scraping blades around its inner periphery, and scrapes the new aggregate supplied from the aggregate hopper 4 via the belt conveyor 5. The new aggregate is heated to a desired temperature by bringing it into contact with the hot air fed from the burner 6 while rolling down the drum while being rolled up and dropped, and then supplied to the plant body 3 via the bucket elevator 7. ing.

  The plant body 3 includes a storage bin 9 provided with a vibrating sieve 8 that screens the heated aggregate supplied from the bucket elevator 7 according to particle size, a stone powder storage bin 11 for storing stone powder supplied from the stone powder elevator 10, and these storage bins. It is composed of an aggregate measuring tank 12, a stone powder measuring tank 13, an asphalt measuring tank 14, a mixer 15 and the like disposed below.

  Reference numeral 16 denotes a known recycling plant which is a recycled compound manufacturing plant installed at a location away from the asphalt plant 1 serving as a new compound supply base. The recycling plant 16 has a new compound plant transported from the asphalt plant 1. A new composite material receiving facility 17 for receiving and storing the material is installed.

  The recycling plant 16 includes a waste material hopper 18 for storing waste materials, a dryer 19 for heating and drying waste materials supplied from the waste material hopper 18, a dust collector (not shown) for capturing dust scattered from the dryer 19, and a dryer. A mixer 20 that accepts the recycled composite material discharged from 19, an asphalt supply device 21 and an additive supply device 22 that supply asphalt and additives to the recycled composite material charged into the mixer 20, and a recycled composite material discharged from the mixer 20. It includes a skip elevator 23 that transports the material, a storage silo 24 that stores the recycled composite material, and the like.

  The dryer 19 rotatably supports a cylindrical drum provided with a large number of scraping blades on the inner periphery thereof, and scrapes scraped material scraped from the scrap hopper 18 via the belt conveyor 25 by the scraping blades. The waste material is brought into contact with hot air fed from the burner 26 while it is rolling down while being dropped, and the waste material is heated to a desired temperature and then discharged to the mixer 20 by a predetermined amount.

  An asphalt supply device 21 and an additive supply device 22 for supplying asphalt and an additive into the mixer 20 include an asphalt tank 27 and an additive tank 28 for storing the asphalt and the additive, respectively, and a pump 29 , 30 are supplied to the respective weighing tanks 31, 32, and the pumps 33, 34 are driven at a predetermined timing to be supplied to the mixer 20. The recycled composite material mixed and adjusted by adding asphalt and additives in the mixer 20 is discharged to the transfer bucket 35 of the skip elevator 23 and stored in the storage silo 24 by the reciprocating travel of the transfer bucket 35.

  The new composite material receiving facility 17 provided near the side of the recycling plant 16 includes a receiving hopper 36 having a heat and heat insulation structure that receives the new composite material supplied from the asphalt plant 1, and the new composite material received by the receiving hopper 36. A predetermined amount of material is discharged to the transfer bucket 39 of the skip elevator 38 by the screw conveyor 37, and is transferred to an upper part of an appropriate number of storage bins 40a, 40b, 40c having a heat and heat insulation structure by the transfer bucket 39 for movement. The trolley 41 is put into a predetermined storage bin and stored.

  Below the storage bins 40a, 40b, and 40c, a weighing tank 42 that moves between the storage bins is disposed, and a mixer 43 is disposed below that. Further, an additive supply device 44 is provided to supply the additive into the mixer 43, and the additive in the additive tank 45 is supplied to the measuring tank 47 by the pump 46, and a predetermined amount is measured. The additive is supplied into the mixer 43 by driving the pump 48 on the discharge side of the measuring tank 47. In addition, suitable transport means such as a belt conveyor 49 for transporting the recycled composite material stored in the recycled silo storage silo 24 of the recycling plant 16 to the mixer 43 is provided, and the recycled composite material is mixed into the new composite material. I can do it.

  Next, a method for producing an asphalt composite material in which the recycled composite material and the new composite material are mixed in the recycling plant 16 will be described. First, it is necessary to manufacture a new composite material for the factory of the recycling plant 16 in the asphalt plant 1 serving as a new composite material supply base. In this case, a desired new aggregate is cut out from the aggregate hopper 4, heated by the dryer 2, lifted to the upper part of the plant body 3 by the bucket elevator 7, sieved by the vibration sieve 8 and stored in the aggregate storage bin 9. To go. Then, according to the composite shipping instruction, the heated aggregate having a desired particle diameter is dispensed from the aggregate storage bin 9 and weighed in the aggregate measuring tank 12, and stone powder and asphalt are placed in the stone powder measuring tank 13 and the asphalt measuring tank 14. After quantitative weighing, the mixture is sequentially introduced into the mixer 15 and mixed to prepare asphalt composite material having a desired composition.

  The produced new composite material is loaded into a waiting transport vehicle and transported to the factory of the recycling plant 16. The new composite material that has been transported to the recycling plant 16 side is put into the receiving hopper 36, cut out by the screw conveyor 37, loaded into the transfer bucket 39 of the skip elevator 38, and moved upward to the storage bins 40a, 40b, 40c. It is transported, supplied to a predetermined storage bin according to the type of new compound by the moving trolley 41, and temporarily stored.

  In the recycling plant 16, a desired waste material is cut out from the waste material hopper 18, heated by a dryer 19, and a predetermined amount of the recycled recycled material is charged into the mixer 20, and an asphalt supply device 21 or an addition is added as necessary. Asphalt and additives are appropriately added from the agent supply device 22 to adjust the mixing, loaded into the transfer bucket 35 of the skip elevator 23, supplied to the storage silo 24 and stored.

  If there is a request for shipment of asphalt composite material in which the new composite material and the recycled composite material are mixed, the new composite material is dispensed from one of the storage bins 40a, 40b, and 40c, and a predetermined amount is measured in the measuring tank 42. In addition, a predetermined amount of the recycled composite material is discharged from the storage silo 24 and supplied to the mixer 43 by the belt conveyor 49, and the additive measured in a predetermined amount in the measuring tank 47 is added to the mixer 43 as necessary. The desired asphalt mixture is prepared by adding to the mixture.

  In addition, although the example which ships the asphalt which mixed the new compound material and the recycled compound material was demonstrated above, it is also possible to ship 100% new compound material in the new compound material receiving equipment 17, and recycling Of course, the plant 16 can ship 100% recycled composite material.

  In this way, if the new compound receiving equipment 17 is installed in the recycle plant 16 and the new compound transported from the asphalt plant 1 away from the recycle plant 16 is received and stored, the recycle plant 16 Can be easily expanded because the equipment for heating and drying the new aggregate is not required, the equipment cost is low, and the installation space is small. In addition, it is advantageous in the recycled plant factory that it is possible to manufacture not only recycled composite materials but also new composite materials, and asphalt composite materials in which new composite materials and recycled composite materials are mixed.

It is explanatory drawing which shows one Example of the asphalt compound-material manufacturing method which concerns on this invention. It is explanatory drawing which shows one Example of the asphalt compound-material manufacturing apparatus which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Asphalt plant 16 ... Recycling plant 17 ... New mixture receiving equipment 19 ... Dryer 20 ... Mixer 21 ... Asphalt supply device 22 ... Additive supply device 23 ... Skip elevator 24 ... Storage silo 36 ... Receiving hopper 38 ... Skip elevator 40a, 40b, 40c ... Storage bin 41 ... Moving trolley 42 ... Measuring tank 43 ... Mixer 44 ... Additive supply device 47 ... Measuring tank (additive) 49 ... Belt conveyor (transfer means)

Claims (2)

  The new composite material manufactured at the asphalt plant is transported to a recycling plant equipped with a new composite material receiving facility installed away from the asphalt plant by a transport vehicle, and temporarily stored in the storage bin of the new composite material receiving facility. At the time of shipment, a predetermined amount of new composite material is weighed from a storage bin and charged into a mixer, and a recycled composite material manufactured at a recycling plant is mixed at a predetermined ratio to manufacture a predetermined asphalt composite material. Asphalt composite manufacturing method.   A storage bin for receiving and storing a new composite material transported from an asphalt plant, a measuring tank disposed under the storage bin, and a subordinate of the measuring tank, attached to a recycling plant for producing recycled composite materials A mixer, an additive supply device for supplying the additive into the mixer, and a transfer means for transferring the recycled composite material produced in the recycling plant to the mixer. Asphalt composite manufacturing equipment.

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