JP2000247444A - Vertical conveyance device for asphalt composite material silo - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the periphery of a bucket from becoming dirty by atomizing oil for preventing adhesion of a composite material to only inner wall of the bucket. SOLUTION: A support column 24 is erected in a basic part of a frame 6 which is an asphalt composite material loading position to a bucket 9, and an arm 25 is fixed on the support column 24 so as to turn freely in the vertical direction. A support bar 27 capable of being tightened or loosened freely by a fixing fitting 28 is arranged in a tip part of the arm 25, and an oil atomizing nozzle 35 is attached to a tip part of the support bar 27. The other end part of the arm 25 is connected to a tip of a piston rod 37 of a cylinder 36 arranged in the support column 24, and the arm 25 is turned around a shaft fixing part due to the expansion and shrinkage of the piston rod 37 so that the oil atomizing nozzle 35 comes in and out of an inner side of the bucket 9 standing by in the basic part of the frame 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical silo vertical transfer device for temporarily storing asphalt mixture used as a pavement material and heated asphalt waste.

[0002]

2. Description of the Related Art Conventionally, a vertical conveyance device for conveying asphalt mixture to a silo for storing asphalt mixture and waste asphalt waste (hereinafter, referred to as asphalt mixture silo) has been known as a material for transferring material from the ground surface to the upper part of a silo body. A guide rail is provided on a frame erected over the loading port, a transport bucket is provided on the guide rail so as to be able to move up and down, and a lifting rope connected to the bucket is rolled up or extended by a winch to pull out the bucket. The asphalt mixture loaded at the mixture loading position on the ground is raised and lowered, and the asphalt mixture is introduced from the mixture introduction port on the upper part of the silo body.

In the transport bucket, oil is sprayed on the inner wall of the bucket so as to prevent the asphalt mixture from adhering to the bucket in order to receive and transport the adhesive asphalt mixture.

[0004]

However, in the above-described conventional vertical transport device, the oil is sprayed toward the inner wall of the transport bucket. However, since the bucket moves up and down along the guide rail, the oil is sprayed. Although the spray nozzle faces the inside of the bucket, it must be sprayed from a position farther from the bucket so as not to hinder the movement of the bucket. Scattered around the bucket and soiled the area around the bucket, leaving room for improvement.

The present invention has been made in view of the above circumstances, and provides an asphalt mixture silo vertical transport apparatus in which oil for preventing mixture adhesion is sprayed only on the inner wall of the bucket so that the periphery of the bucket is not stained. Make it an issue.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an asphalt mixture transport bucket capable of ascending and descending along a guide rail extending from a ground surface to a material inlet in the upper part of a silo. In a vertical conveying device of an asphalt mixture silo that is moved up and down by reeling in and out of an ascending and descending rope by forward / reverse rotation of a winch, an oil spray nozzle that sprays oil onto an inner wall of the bucket stopped at a base of the guide rail. It is characterized in that it is disposed so as to be able to enter and exit the inside of the bucket from the vicinity of the bucket.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the vertical conveying device for asphalt mixture silos according to the present invention, when loading asphalt mixture on a transport bucket and moving it up and down along guide rails, first, the bucket is asphalt mixed. It is made to stand by at the base of the guide rail where the mixture is loaded. Then, before loading the asphalt mixture, the oil spray nozzle disposed at a predetermined position near the bucket is made to enter the inside of the bucket so that the oil spray nozzle faces the inner wall of the bucket. Oil for preventing the asphalt mixture from adhering is sprayed toward the inner wall from the oil spray nozzle. When the spraying of the oil is completed, the oil spray nozzle is retracted from the inside of the bucket, and waits at the original position near the bucket. When the oil spray nozzle is separated from the bucket, the asphalt mixture is loaded, ascends along the guide rails, and transports the loaded asphalt mixture into the mixture silo. When the bucket returns to the base of the guide rail again and stops at the loading position of the asphalt mixture, the oil spray nozzle advances into the bucket and sprays the oil on the inner wall of the bucket in the same manner as described above.
In this manner, the oil is sprayed by bringing the oil spray nozzle close to the inner wall of the bucket that moves up and down along the guide rail, so that the oil does not scatter around the bucket and does not stain the periphery of the bucket.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vertical conveying device for an asphalt mixture silo according to the present invention.

In the figure, reference numeral 1 denotes an asphalt mixture silo main body mounted on a gantry 2 for temporarily storing an asphalt mixture at about 160 ° C. manufactured by an asphalt plant (not shown), and keeping the temperature of the asphalt mixture by heating. It has a structure, and has a material inlet 3 at the upper part and a material outlet 4 at the lower part.

Reference numeral 5 denotes a vertical transfer device, which has a frame 6 extending from the ground surface to the upper portion of the silo body 1, and a pair of guide rails having a substantially U-shaped inner surface as a sliding surface. 7 are arranged to face each other along the longitudinal direction of the frame 6.

A transport bucket 9 having a roller 8 rotatably disposed on the guide rail 7 in sliding contact with the sliding surface.
One end of a lifting rope 10 is fastened to the bucket 9, and the lifting rope 10 is wound around a winch 12 via a pulley 11 that is rotatably disposed, and the winch 1
The transporting bucket 9 is moved up and down along the guide rails 7 by rotating and lifting up the hoisting rope 10 by rotating the drive motor 13 forward and backward.

The bucket 9 has a material receiving port 14 at its upper part.
Has a discharge port 15 in the lower portion, and the discharge port 15 in the lower portion.
Is provided with an opening / closing gate 16 for opening and closing the discharge port 15. The opening / closing gate 16 is rotatably pivoted by a pivot pin 17 fixed to the side wall of the bucket 9.
A stopper 1 is provided behind the opening / closing gate 16 as a gate opening preventing means so that the opening / closing gate 16 does not rotate backward even if the opening / closing gate 16 rotates forward from the position closing the discharge port 15.
8 is fixed.

A cylinder 19 is disposed on the upper portion of the frame 6, and a pressing plate 22 for pressing a gate roller 21 attached to the side surface of the opening / closing gate 16 is provided at the tip of a piston rod 20 of the cylinder 19. Attached.

Numeral 23 denotes an oil spraying device arranged at the base of the frame 6, and as shown in FIG. 3, a pair of right and left support columns 24 are arranged on the frame 6 near the stop position of the bucket 9 so as to sandwich the bucket 9. And each arm 24 has an arm 2
5 is rotatably supported by a shaft 26. At the distal end of the arm 25, there is provided a fixing fitting 28 for fixing the support rod 27. As shown in FIG. 4, the fixing fitting 28 fits into a through hole 29 formed at the tip of the arm 25. A short pipe 31 into which the support rod 27 is inserted is fixed to one end of the shaft 30, and the support rod 27 is attached to the short pipe 31.
Is provided with a fixing screw 32 for fixing. At the other end of the shaft 30, a screw 33 is screwed to fix the shaft 30 to the arm 25, and a tightening nut 34 is screwed to the screw 33. . An oil spray nozzle 35 for spraying oil is provided at the tip of the support rod 27.
Is installed.

The left and right columns 24 have a cylinder 3
6, the distal end of the piston rod 37 of the cylinder 36 is rotatably mounted on the base end of the arm 25, and the arm 25 is rotated by the expansion and contraction of the piston rod 37 of the cylinder 36. Thus, the oil spray nozzle 35 attached to the tip of the support bar 27 at the tip of the arm 25 can freely enter and exit the bucket 9.

Reference numeral 38 denotes a bucket detecting sensor disposed at the base of the frame 6 for detecting that the bucket 9 is stopped at a predetermined position on the base of the frame 6.

Next, a case where the asphalt mixture is transported by the vertical transport device for asphalt mixture silos according to the present invention will be described.

First, when the asphalt mixture is transported, the winch 12 is fed out and the transport bucket 9 is made to stand by at the base of the frame 6. When the bucket detecting sensor 38 disposed on the base of the frame 6 detects the bucket 9, the piston rod 37 of the cylinder 36 disposed on the column 24 on both sides of the frame 6 is extended.

When the piston rod 37 extends, the arm 25 rotates so as to fall forward from the shaft attachment portion, and the oil spray nozzle 35 attached to the distal end via the support rod 27 enters the inside of the bucket 9 and the oil The tip of the spray nozzle 35 faces the inner wall of the bucket 9. Thus, when the oil spray nozzle 35 enters the inside of the bucket 9, the oil is sprayed from the oil spray nozzle 35 toward the inner wall of the bucket 9 so that the asphalt mixture is less likely to adhere.

When the spraying of the oil is completed, the cylinder 3
6, the arm 25 is rotated so as to be raised from the shaft attachment portion, and the oil spray nozzle 35 disposed at the tip of the arm 25 is retracted to a position where it does not protrude into the hoistway of the bucket 9. So as not to hinder the vertical movement of the bucket 9.

Adjustment of the position of the oil spray nozzle 35 with respect to the inner wall of the bucket 9 when the oil spray nozzle 35 enters the inside of the bucket 9 is performed by loosening the fixing metal 28 of the support rod 27 disposed at the tip of the arm 25 and by adjusting the position of the support rod 27. Is made to appear and disappear, and is also rotated.

Further, taking into account that the stopping position of the bucket 9 at the base of the frame 6 is slightly shifted due to the extension of the lifting rope 10 suspending the bucket 9, the column 24 to which the oil spray nozzle 35 is attached is attached to the bucket 24. It is preferable to dispose it so that the movement can be adjusted in the movement direction of the reference numeral 9.

When the oil spray nozzle 35 is retracted to a predetermined position, a predetermined amount of asphalt mixture is loaded into the bucket 9 from the asphalt plant (not shown). When the loading of the asphalt mixture is completed, the winding of the winch 12 is started, and the bucket 9 is raised to carry the mixture into the mixture silo 1.

As described above, while the bucket 9 is waiting at the base of the frame 6 which is the position where the mixture is loaded, the oil spray nozzle 35 is advanced to the inside of the bucket 9 and brought as close as possible to the inner wall of the bucket 9. By spraying oil on the inner wall in this state, the periphery of the bucket 9 is not stained.

[0025]

As described above, in the vertical conveying device for asphalt mixture silos according to the present invention, the asphalt mixture can be moved up and down along the guide rails extending from the ground surface to the material inlet at the upper part of the silo. In a vertical conveying device of an asphalt mixture silo in which a material transport bucket is moved up and down by winding up and down ropes by forward / reverse rotation of a winch, oil is sprayed on an inner wall of the bucket stopped at a base of the guide rail. The oil spray nozzle is arranged so as to be able to enter and exit the inside of the bucket from the vicinity of the bucket, so that when spraying oil on the inner wall of the bucket, the oil spray nozzle is advanced to the inside of the bucket so that the oil Oil can be sprayed on the inner wall in a state of being brought close to the periphery of the bucket without scattering the oil around the bucket. Pollute not.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing one embodiment of a vertical conveying device for an asphalt mixture silo according to the present invention.

FIG. 2 is an enlarged view of a main part of FIG. 1;

FIG. 3 is a side view in which a part of FIG. 2 is omitted.

FIG. 4 is an enlarged view taken in the direction of arrow A in FIG. 3;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Asphalt mixture silo main body 3 ... Material input port 5 ... Vertical transfer device 6 ... Frame 7 ... Guide rail 9 ... Transfer bucket 10 ... Lifting rope 12 ... Winch 23 ... Oil spraying device 24 ... Prop 25 ... Arm 27 ... Support rod 28 ... Fixing bracket 34 ... Tightening nut 35 ... Oil spray nozzle 36 ... Cylinder 37 ... Piston rod 38 ... Bucket detection sensor

Claims (1)

[Claims] An asphalt mixture transporting bucket which can be lifted and lowered along a guide rail extending from a ground surface to a material input port on an upper part of a silo is moved up and down by winding and unwinding a lifting rope by forward / reverse rotation of a winch. In the vertical conveying device of the asphalt mixture silo to be made, an oil spray nozzle for spraying oil on the inner wall of the bucket stopped at the base of the guide rail is disposed so as to be able to enter and exit the inside of the bucket from near the bucket. A vertical conveying device for asphalt mixture silos.