JP2574133Y2 - Asphalt plant - 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 plant for producing an asphalt mixture as a road paving material.
In particular, the present invention relates to an aggregate storage bin for storing heated aggregate in a plant body.

[0002]

2. Description of the Related Art In an asphalt plant, heated aggregate heated by a dryer is sieved by a vibrating sieve in the main body of the plant and stored in an aggregate storage bin according to particle size.
It is standard that the aggregate storage bin is divided into four compartments, and the compartment has sand having a particle size of 2.5 mm or less, and 2.5 to
It is common to store crushed stones of 5 mm, 5 to 13 mm, and 13 to 25 mm. The crushed stone having a size of 25 mm or more is discharged to the outside through an separately provided oversize chute without being stored in the aggregate storage bin. As described above, the standard type of aggregate storage bin is partitioned so as to store four types of aggregates, but there are cases where five types of aggregates are stored as special specifications. We are manufacturing an additional room.

[0003]

[Problems to be solved by the invention] However, because the structure of the standard four storage type and the special five storage type are different, the special specification has a different work procedure from the standard product, and the number of manufacturing steps is also extra. This causes cost increase.

[0004] In view of the above, the present invention makes it possible to share a part of the bin shape of the standard four storage types of aggregate storage bins and the five types of special storage bins of the special specification so that they can be easily changed. It is an object of the present invention to provide an asphalt plant designed to increase product productivity.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a vibrating sieve for sieving aggregates heated and dried by a dryer according to particle size, and an aggregate sieved by the vibrating sieve. In an asphalt plant having a separate storage bin provided with an aggregate storage bin in the plant main body, the interior of the upper main body of the aggregate storage bin is partitioned by a partition plate to form one more room than the four standard divisions. In addition, an oversize chute or a lower body of the aggregate storage bin is selected and attached below the compartment located at the most downstream side with respect to the aggregate flow of the vibrating sieve.

[0006]

According to the present invention, the upper body of the aggregate storage bin of the asphalt plant is formed by dividing the inside of the upper body into one more than the standard section. When the aggregate storage bin is used as a standard compartment, an oversize chute is attached to the lowermost position of the compartment located at the most downstream position with respect to the aggregate flow of the vibrating sieve. Also,
When a storage bin of a special specification having one kind more than the standard compartment is provided, a lower body of the aggregate storage bin which is increased by one kind is attached instead of the oversize chute. As a result, the upper body of the aggregate storage bin can be shared irrespective of the standard specification and the special specification, and the production cost can be reduced.

[0007]

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

[0008] Plant body 1 of asphalt plant
Is configured by stacking blocks on which each device is mounted in a hierarchical manner in accordance with the flow of the manufacturing process. Plant body 1
Is the mixer / measuring block 3 placed on the gantry 2
There are provided an aggregate measuring tank 4, a stone powder measuring tank 5, an asphalt measuring tank 6, and a mixer 7 for mixing various materials measured by these measuring tanks to produce an asphalt mixture.

The upper stage of the mixer / weighing block 3 is a storage tank block 8, which is a lower body 9a of an aggregate storage bin 9.
A stone powder storage bin 11 for storing the stone powder lifted by the stone powder elevator 10 is provided. An upper body 9b of the aggregate storage bin 9 is loaded on the storage tank block 8, and the upper body 9b of the aggregate storage bin 9 is heated by a dryer (not shown) and transported by the hot elevator 12. A vibrating sieve 13 for sieving the aggregate by particle size is placed.

The aggregate storage bin 9 is partitioned so that the aggregate sorted by the vibrating sieve 13 can be stored according to the particle size, and the upper main body 9b is formed by partitioning one room more than the standard partition. For example, although the standard number of compartments is generally four, the compartments 15a, 15b, 15c, 15d, 1d are partitioned by partitioning plates 14a, 14b, 14c, 14d.
5e is formed, which is five rooms one room larger than the standard.

The lower body 9a of the aggregate storage bin 9 has a partition 16a as a standard section so as to match the upper body 9b.
The four compartments 17a, 1 are partitioned by 16b, 16c.
7b, 17c, and 17d are formed, and discharge gates 18a, 18b, 18c, and 18d are attached to their lower openings.

When the aggregate storage bin 9 is of a standard four-type storage type, the compartment 15e located at the most downstream position with respect to the aggregate flow of the vibrating sieve 13 is used for unused aggregate having a large particle size. Since the water flows separately, the oversize chute 19 for guiding the oversized aggregate to the outside below the plant is attached to the lower opening of the compartment 15e by a fixing means such as welding as shown in FIG.

When the aggregate storage bins 9 are of a five-type storage type, one type more than the standard, the compartment 15e is used.
Since the aggregate to be used having the maximum particle size flows into the lower compartment, the lower compartment which is the lower body of the aggregate storage bin formed in a substantially U-shaped cross section which matches the lower opening of the compartment 15e as shown in FIG. The unit 20 is prepared separately, and is welded to the lower body 9a to make the lower body 9a into five chambers.
The discharge gate 18e is attached to the lower opening of the base by a fixing means such as welding. At this time, the lower compartment unit 2
Lower body 9a without taking the method of separately preparing and attaching 0
May be manufactured in five chambers that match the upper body 9b.

As described above, the interior of the upper main body 9b of the aggregate storage bin 9 is formed so as to be partitioned into one more room than the standard partition.
When the aggregate storage bin 9 is used as a standard compartment, an oversize chute is attached below the compartment 15e,
When the special specification is more than one type of standard section, the upper body 9b of the aggregate storage bin 9 is provided with a standard structure by attaching a lower body 9a having an increased number of compartments 20 instead of the oversize chute 19. They can be shared regardless of special specifications, and can increase product productivity.

[0015]

As described above, according to the present invention, the interior of the upper main body 9b of the aggregate storage bin 9 is formed with one more compartment than the standard compartment, and the upper part of the aggregate storage bin 9 is formed with respect to the aggregate flow of the vibrating sieve 13. Since the oversize chute 19 or the lower body 20 of the aggregate storage bin 9 is selected and attached below the compartment 15e located downstream, the aggregate storage bin 9 is installed.
The upper body 9b can be shared irrespective of the standard specification and the special specification, thereby increasing the productivity of the product.

[Brief description of the drawings]

FIG. 1 is a schematic view showing an asphalt plant of the present invention.

FIG. 2 is a schematic explanatory view of an aggregate storage bin portion to which the oversize chute of the present invention is attached.

FIG. 3 is a side view of FIG. 2;

FIG. 4 is a schematic explanatory view of an aggregate storage bin portion to which a lower main body is attached in place of the oversize chute in FIG. 2;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Plant main body part 9 ... Aggregate storage bin 9a ... Aggregate storage bin lower main body 9b ... Aggregate storage bin upper main body 13 ... Vibrating sieve 14a, 14b, 14c,
14c partition board 15a, 15b, 15c, 15c partition chamber 16a, 16b, 16c, 16c partition board 17a, 17b, 17c, 17c partition chamber 19 oversize chute 20 lower compartment unit (aggregate storage bin) Lower body)

Claims (1)

(57) [Scope of request for utility model registration] A vibrating sieve for sieving aggregates heated and dried by a dryer according to particle size, and an aggregate storage bin provided with a compartment for storing aggregates sieved by the vibrating sieve according to particle size. In an asphalt plant having
The interior of the upper body of the aggregate storage bin is formed by a partition plate with one more compartment than the four compartments in the standard compartment , and the lower portion of the compartment located at the most downstream position with respect to the aggregate flow of the vibrating sieve is formed. An asphalt plant characterized in that either a size chute or a lower body of an aggregate storage bin is selected and attached.