JP2591007Y2 - Asphalt pavement waste material recycling device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an asphalt pavement waste material recycling apparatus for heating and regenerating asphalt pavement waste material excavated by road construction.

[0002]

2. Description of the Related Art When asphalt pavement waste material (hereinafter referred to as "waste material") is reclaimed, the waste material piled up in a waste material yard is scooped up by a shovel loader, thrown into a waste material hopper and temporarily stored therein, and the waste material is stored in a lower portion of the hopper. It is drawn out by a drawer conveyor and sent to a waste material regeneration dryer to regenerate by heating.

[0003] This waste material has an adhesive property because it contains asphalt, and if the shipment is completed on that day, it must be withdrawn from the waste material hopper to be solidified and cannot be discharged. Is returned.

A conventional method of extracting waste material from a waste material hopper is to reverse the drawer conveyor below the waste material hopper and draw waste material in the opposite direction, and use a tilted conveyor arranged at the rear end of the drawer conveyor to raise the height of the shovel loader or dump truck. He lifted it up, loaded it, and returned it to the designated waste yard.

[0005]

[Problems to be Solved by the Invention] However, in the conventional waste material extracting method, it is necessary to install an inclined conveyor at the rear end of the drawer conveyor of the waste material hopper, and the inclined conveyor protrudes and hinders the plant site. Effective space is also reduced.

SUMMARY OF THE INVENTION In view of the foregoing, it is an object of the present invention to provide an asphalt pavement waste material regenerating apparatus which saves space by eliminating the conventional inclined conveyor for extracting waste materials.

[0007]

According to the present invention, in order to achieve the above object, a waste material recycling dryer for heating and recycling waste material is installed on an elevated stand, and the waste material is dried by a vertical transport device on the waste material recycling dryer. In an asphalt pavement waste material recycling device that is lifted and put in, a waste material collection chute is arranged by branching the middle of the input chute of the vertical transport device, and the tip of the waste material collection chute can be loaded into a waste material collection vehicle. It is characterized in that a path changing damper is provided at the branch of the waste material collecting chute so that the path of the passing waste material can be changed to the waste material collecting chute side.

[0008]

According to the present invention, when extracting waste material from the waste material hopper, a transport vehicle such as a shovel loader or a dump truck is kept below the waste material recovery chute branched from the input chute of the vertical transport device, and the waste material recovery chute is provided. By operating the path changing damper provided at the branching portion, the waste material is caused to flow toward the waste material collecting chute and collected by the transport vehicle.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

A waste material regenerating apparatus 1 for heating and regenerating waste materials is installed adjacent to a known asphalt plant body 2 (indicated by a two-dot chain line), and has a dryer 3 for regenerating waste materials for heating the waste materials, and temporarily stores the heated waste materials. A waste material storage bin 4, a waste material measuring tank 5 for measuring a predetermined amount of heated waste material, and other auxiliary equipment.

The waste material recycling apparatus 1 is piled up on an elevated base 6 erected on the side of the asphalt plant main body 2, and is rotatably inclined on a dryer base 8 on an upper floor 7 of the elevated base 6. The waste material recycling dryer 3 is mounted.

A burner 9 is provided in a lower space of the waste material regeneration dryer 3, and a combustion chamber 10 for forming a flame is further provided in front of the burner 9 to recycle the combustion chamber 10. The hot air generated by the burner 9 by being connected to the hot hopper 11 side of the dryer 3 is introduced into the waste material regeneration dryer 3. An exhaust flue 13 for discharging exhaust gas passing through the dryer 5 is connected to a cold hopper 12 disposed downstream of the waste material regeneration dryer 3.

Further, a fan 15 for sucking and exhausting exhaust gas derived from the exhaust flue 13 and a cyclone dust collector 1 for separating dust in the exhaust gas are provided on a lower floor 14 of the elevated platform 6.
6, a part of the exhaust gas passing through the fan 15 via the cyclone dust collector 16 is returned to the combustion chamber 10 through the exhaust flue 17 for heat recovery, and the other exhaust gas is exhaust flue. The dust is sent to the dust collecting device 19 of the asphalt plant via 18.

Hot hopper 11 of dryer 3 for recycling waste material
A bucket elevator 20, which is a vertical transport device, is disposed on the side of the bucket elevator. On the ground, a waste material hopper 22 for temporarily storing waste material for each grain is provided, and predetermined waste material is drawn out from the waste material hopper 22 by a drawer 23,
Waste material recycling dryer 3 via bucket elevator 20
I send it to.

The charging chute 21 of the bucket elevator 20 is branched on the way, and a waste material collecting chute 24 for collecting waste material is connected to the branch portion. A discharge gate 2 that is suspended to a height that can be loaded on a transport vehicle such as a shovel loader or dump truck, and that can be freely opened and closed at its tip.
5 is installed.

The chute 2 of the bucket elevator 20
A path changing damper 26 for changing the path of the waste material passing therethrough is disposed at the branch portion 1 so as to be rotatable about a rotation shaft 27. To the dryer 3 for waste material regeneration,
It can be made to flow to the waste material collecting chute 24 side.

When the waste material in the waste material hopper 22 is to be removed after the operation of the day, the bucket elevator 2
Path change damper 2 arranged on the input chute 21
6 is rotated to the position shown by the solid line in FIG. When the waste material in the waste material hopper 22 is pulled out by the draw-out conveyor 23 and transported to the bucket elevator 20, the waste material lifted to the uppermost position by the bucket elevator 20 is discharged by the waste material collection chute by the path changing damper 26 of the input chute 21. It is guided to the 24 side and falls.

In order to collect the waste material guided to the waste material collecting chute 24 side, a transport vehicle is made to stand by below the waste material collecting chute 24, and the discharge gate 25 at the lower end portion of the waste material collecting chute 24 is opened and closed appropriately to operate the waste material collecting chute 24. Is loaded on a truck and returned to the waste yard. When the collection of the waste material is completed, the path change damper 26 is rotated to the position shown by the two-dot chain line in FIG. 3 so that the waste material can be supplied to the waste material regeneration dryer 3 side.

[0019]

As described above, in the present invention, a waste material collecting chute 24 branches off in the middle of the input chute 21 of the bucket elevator 20 that supplies the waste material to the waste material regenerating dryer 3 installed on the elevated platform 6. And the tip of the waste material collecting chute 24 is hung down to a loadable height of the waste material collecting vehicle, and the route of the waste material passing through the branch of the waste material collecting chute 24 can be changed to the waste material collecting chute 24 side. When the waste material remaining in the waste material hopper 22 is extracted, the waste material is guided to the waste material recovery chute 24 by the switching operation of the route change damper 26 and collected by the transport vehicle. As a result, it is not necessary to install an inclined bell-con to load waste materials into a transport vehicle as in the related art, and space can be saved.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of an asphalt pavement waste material recycling apparatus according to the present invention.

FIG. 2 is a partially omitted side view of FIG. 1;

FIG. 3 is an enlarged view of a main part of FIG. 1;

[Description of sign]

DESCRIPTION OF SYMBOLS 1 ... Waste material reproduction apparatus 3 ... Waste material reproduction dryer 6 ... Elevated stand 20 ... Bucket elevator (vertical conveyance device) 21 ... Input chute 22 ... Waste material hopper 24 ... Waste material collection chute 26 ... Path change damper

Claims (1)

(57) [Scope of request for utility model registration] An asphalt pavement waste material recycling apparatus in which a waste material recycling dryer for heating and recycling the waste material is installed on an elevated stand, and the waste material is lifted and introduced into the waste material recycling dryer by a vertical transport device. A waste material collecting chute is installed by branching the middle of the input chute of the device,
A route changing damper is provided which allows the tip of the waste material collecting chute to hang down to a height at which the waste material collecting vehicle can be loaded and allows the route of the passing waste material to be changed to the waste material collecting chute at the branch of the waste material collecting chute. An asphalt pavement waste material recycling device characterized by the following.