JP2540373Y2 - 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 pavement material.

[0002]

2. Description of the Related Art An asphalt plant consists of a dryer for heating and drying aggregate, a batch tower equipped with a vibrating sieve, a storage bin, a measuring tank, a mixer, etc. for receiving heated aggregate and producing asphalt mixture, and a dryer. It is composed of a dust collection device that captures generated dust and other auxiliary equipment. This plant is installed on a large site because it has a lot of noise source equipment, measures noise by distance attenuation, adopts low noise equipment and implements various soundproof measures according to the installed area. I have. Considering the landscape of the plant, the batch tower is covered with an exterior material to make it look like a building, and considerations have been made to match the surrounding environment.

[0003]

[Problems to be solved by the invention] However, in the near future, regulations on pollution and the environment are expected to become more severe, and it will be increasingly difficult to install asphalt plants near urban areas.

The present invention has been made in view of the above circumstances, and has as its object to provide an asphalt plant devised so that it can be installed near an urban area.

[0005]

According to the present invention, in order to achieve the above object, a dryer for heating and drying the aggregate is installed in an underground storage unit on or near the ground, and the heated aggregate heated by the dryer. A batch tower comprising a vibrating sieve, a storage bin, a weighing instrument, and a mixer for receiving asphalt mixture is stored in an underground storage section dug below the dryer, and a lower portion of a mixer discharge section of the batch tower and above the ground. A vertical transport device for transporting asphalt mixture is installed between the vehicle and the vehicle loading position .

[0006]

According to the present invention, by disposing a batch tower having a sound source at a high place where noise countermeasures are difficult to be installed in the basement, it is possible to minimize the dispersal of noise around the plant and to reduce the area above the batch tower. Effective use of space can be achieved. Further, since the batch tower is underground, various materials can be supplied by gravity, and a device for lifting various materials to the batch tower as in the related art is not required, so that the cost of the device itself can be reduced.

[0007]

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

Reference numeral 1 denotes a dryer for heating and drying the aggregate, which is installed on the ground, half underground to prevent noise, or the whole apparatus underground. The dryer 1 has a hot hopper 3 and a heating burner 4 at one end of a drum 2 rotatably inclined and supported, and a cold hopper 5 at the other end.
The aggregate supplied from the cold hopper 5 side is heated by the burner 4 and discharged from the discharge chute 6 on the hot hopper 3 side.

Reference numeral 7 denotes an underground storage section formed by digging down the ground below the dryer 1. The underground storage section 7 stores a batch tower 8 as a plant body.

The batch tower 8 has a hierarchical structure in which devices constituted by blocks are stacked according to functions, and a vibration for receiving heated aggregate discharged from the discharge chute 6 of the dryer 1 and sieving for each particle size is provided on the top floor. A sieve 9 is provided, and an aggregate storage bin 10 for storing the sieved heated aggregate for each particle size is provided below the vibrating sieve 9, and an aggregate storage bin 10 is provided below the aggregate storage bin 10. Aggregate weighing tank 11 for weighing is provided.

Reference numeral 12 denotes a stone powder storage bin 12 partially buried in the ground near the batch tower 8.
Batch tower for storing and weighing stone powder to be dispensed, a stone powder bottle, a stone powder measuring tank (not shown), and an asphalt measuring tank (not shown) for measuring molten asphalt supplied from an asphalt tank (not shown) on the ground 8 in the vicinity of the aggregate measuring tank 11. Below these measuring tanks, a mixer 13 for mixing each material is provided.

Numeral 14 denotes a skip elevator, which is a vertical transport device for transporting asphalt mixture produced by the batch tower 8 stored underground to the ground, from below the discharge section of the mixer 13 mounted at the bottom of the batch tower 8. The traveling rail 15 is stretched over the ground material unloading position, the unloading hopper 16 is configured to be able to move up and down along the running rail 15, and the asphalt is transferred to a transport vehicle 17 waiting to be loaded at the vehicle loading position on the ground. The material can be loaded.

A dust collector 19 is connected to the exhaust flue 18 of the dryer 1 and is installed on the ground. An exhaust fan and a chimney (both not shown) are provided downstream of the dust collecting device 19. These devices installed on the ground are preferably collected in one place and enclosed with an exterior material in order to save space.

In the case of manufacturing an asphalt mixture, an aggregate corresponding to the composition of the asphalt mixture to be manufactured is supplied to the dryer 1 and heated, and the heated aggregate is dropped from the discharge chute 6. It is thrown into the vibrating sieve 9 on the top floor of the batch tower 8 underground. The heated aggregate supplied to the vibrating sieve 9 is sieved and stored in the lower aggregate storage bin 10 for each particle size. When there is a request to ship the asphalt mixture, the aggregate having a particle size corresponding to the composition is paid out from the storage bin 10 to the aggregate measuring tank 11 and weighed, and the stone powder measured by the stone powder measuring tank and the asphalt measuring tank (not shown) is used. It is put into the mixer 13 together with the asphalt and mixed and adjusted. The manufactured asphalt mixture is put into a carry-out hopper 16 which stands by below a discharge section of the mixer 13, and the skip elevator 1
By 4, the truck is lifted to the ground, transported to the mixture unloading position where the truck 17 stands by, and sequentially loaded on the carrier of the truck 17.

Although the batch tower 8 is mainly installed underground, it is needless to say that installing all the equipment underground is most preferable in terms of noise pollution and space saving. In the case where a dryer for asphalt pavement waste material is additionally provided, the dryer is installed on or near the ground in the same manner as described above, and a waste material storage bin and a measuring tank for storing waste material heated by the dryer are installed in the underground batch tower. It is preferable that the heating waste material is disposed near the side of the batch tower 8 and the measured heating waste material can be supplied to the mixer 16 of the batch tower 8.

[0016]

As described above, according to the present invention, the batch tower 8 of the asphalt plant is stored in the underground storage unit 7, so that the noise from the batch tower 9 on the surroundings can be minimized. Also, batch tower 9
If the ground surface is used effectively, the plant installation area can be reduced and the land can be used effectively. Furthermore, batch tower 9
Because it is underground, various materials can be supplied by gravity, and a device for lifting various materials to the batch tower as in the conventional case is not required, and the cost of the device itself can be reduced.

[Brief description of the drawings]

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

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Dryer 7 ... Underground storage part 8 ... Batch tower 13 ... Mixer 14 ... Skip elevator (vertical conveyance apparatus)

Claims (1)

(57) [Scope of request for utility model registration] 1. A vibrating sieve, a storage bin, and a weighing machine for installing an dryer for heating and drying aggregates in an underground storage section on or near the ground and receiving the heated aggregates heated by the dryer to produce asphalt mixture. And a batch tower comprising a mixer and the like are stored in an underground storage section dug down below the dryer, and a vertical section for transporting asphalt mixture between a lower part of the mixer discharge section of the batch tower and a vehicle loading position on the ground. An asphalt plant comprising a transfer device.