JPH0724407Y2 - Asphalt mix production plant - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is an asphalt mixture material in which a recycling plant capable of heating and regenerating waste asphalt pavement is added to an asphalt plant that manufactures an asphalt mixture material for road paving. Regarding manufacturing plant.

[Prior Art] Waste asphalt pavement material (hereinafter referred to as "waste material") dug up due to road construction, etc. has been regenerated by heating and used as an asphalt mixture, but a recycling plant that heats and regenerates this waste material is a factory. It is rarely installed alone on the premises, and usually it is installed in parallel with a new asphalt plant.

This recycling plant is composed of almost the same system as the heating system of an asphalt plant, and is composed of a waste material dryer that heats waste material, a dust collector that captures the dust derived from the waste material dryer, and ancillary equipment. .

[Problems to be solved by the invention] However, even though the amount of waste material processed in the recycling plant is very small compared to the amount of new mix produced in the asphalt plant, the installation area of the recycling plant is the heating system of the asphalt plant. It requires almost the same area as this, and there are many noise sources such as burners in this type of plant, so it is necessary to take noise measures such as keeping a sufficient distance to the site boundary line.
For this reason, a large factory site is required to install both plants, but it is very difficult to secure a large factory site in the suburbs of cities, as land prices have risen in recent years.

Furthermore, there are many cases in which a recycling plant is added to an existing asphalt plant, and the layout is difficult if the site is small, and even if the layout can be completed, there is a problem that the layout is cluttered.

Therefore, in consideration of the above points, the present invention can reduce the installation area as much as possible compared to the installation of both asphalt plant and recycling plant, and can easily perform layout even when adding a recycling plant to an existing asphalt plant. The purpose is to propose a plant for producing asphalt mixture that can be manufactured.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides an asphalt mixture manufacturing plant according to claim 1, wherein an upper space of an aggregate dryer which is an aggregate heating device of the asphalt plant. In addition to stacking waste material dryers that heat and regenerate asphalt pavement waste materials, a dust collection device that captures the dust discharged from each dryer is provided downstream of these dryers.

Further, in the asphalt mixture manufacturing plant according to claim 2, as the dust collector, a dust collector for an aggregate dryer that captures dust derived from an aggregate dryer and a dust derived from a waste material dryer are provided. And a dust collector for a waste material dryer to be captured, and the dust collector for a waste material dryer is provided in an upper space of the dust collector for an aggregate material dryer.

[Operation] According to the asphalt composite material manufacturing plant according to the first aspect of the present invention, since the waste material dryer of the recycling plant is stacked in the upper space of the aggregate dryer of the asphalt plant, the installation area of the dryer is reduced. The number can be reduced and the factory site can be effectively used, and the layout can be easily performed even when the recycling plant is added to the existing asphalt plant.

Further, according to the asphalt composite material manufacturing plant of claim 2, in addition to the above, a dust collector for a waste material dryer is provided in a space above the dust collector for an aggregate dryer, so that the dust collector is installed. The area can be reduced and the factory site can be used more effectively.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

An asphalt plant is an aggregate dryer 1 for heating and drying aggregates, an aggregate dryer dust collecting device 2 for capturing dusts derived from the aggregate dryer 1, a plant body 3 for storing, measuring and mixing heated aggregates, And other incidental equipment.

The aggregate dryer 1 is of a rotary kiln type, in which a cylindrical drum 4 is rotatably supported on a machine base 5 and is rotated at a predetermined speed by a drive unit (not shown). A large number of scraping blades are arranged inside the drum 4, and the new aggregate sent by an aggregate conveying device (not shown) is scraped up by the scraping blades, and the drum 4 is rolled while being dropped like a curtain. During dynamic flow, the aggregate is heated by contacting it with the hot air sent from the burner 6, and the heated aggregate heated to a predetermined temperature is supplied to the plant body 3 via the hot elevator 7.

Further, the exhaust gas discharged from the drum 4 passes through the first flue 8 and is introduced into the inertial dust collector 9 to capture coarse particles of dust contained in the gas, and then the second flue 10 And is introduced into the dust collector 2 for the aggregate dryer, and the fine powder component of the dust in the gas is captured. The gas that has passed through the dust collector and becomes clean is the third flue 11, and the exhaust fan 12 that sucks and exhausts the exhaust gas.
And is emitted into the atmosphere from the chimney 13. A bag filter is mainly used as the dust collector 2 for the aggregate dryer.

On the other hand, a recycling plant that heats and recycles waste material is a waste material dryer 14 that heats and recycles waste material, a dust collector 15 for the waste material dryer that captures dust derived from the waste material dryer 14, a heat reclaimed waste material storage that temporarily stores the heat reclaimed waste material. It consists of a bottle 16 and other auxiliary equipment.

The waste material dryer 14 is of a rotary kiln type having a shape similar to that of the aggregate dryer 1 and is provided so as to be stacked on top of the aggregate dryer. The waste material dryer 14 is configured such that a cylindrical drum 17 having a large number of scraping blades arranged therein is rotatably supported on a mount 18 so as to be rotatable at a predetermined speed by a driving device (not shown). The aggregate dryer 1 is placed on a support table 20 supported by legs 19 standing on both sides of the aggregate dryer 1.
It is arranged almost in parallel with the upper space of the above, and even if the waste material dryer 14 is added, it is almost the same as the area occupied by the aggregate dryer 1.

In addition, a burner 21 is installed on the frame 18 at one end of the waste material dryer 14.
And a combustion chamber arranged in the front part of the burner 21.
The hot air with the flame formed on the drum 22 is sent into the drum 17, and the waste material is conveyed to the drum 17 by a waste material conveying device (not shown).
The waste material is supplied to the inside and is heated up to a predetermined temperature while being temporarily rolled up in the drum while being scraped by the scraping blades and temporarily stored in the waste material hopper 23.

The exhaust gas discharged from the drum 17 of the waste material dryer 14 passes through the first flue 24 and is introduced into the waste material dryer dust collector 15, where the dust in the gas is captured. The dust collector 15 for the waste material dryer is provided above the dust collector 2 for the aggregate dryer, and the legs 25 are provided upright on both sides of the dust collector 2 for the aggregate dryer.
The dust collector for aggregates is placed on the support base 26 supported by the above and is arranged in the space above the dust collector 2 for aggregate dryers, and the dust collector for aggregates dryer is added even if the dust collector 15 for waste material dryers is added. It is almost the same as the area occupied by No. 2.
The exhaust gas derived from the dust collector 15 for the waste material dryer passes through the second flue 27, and further passes through the exhaust fan 28 that sucks and exhausts the exhaust gas and is discharged from the chimney 13 into the atmosphere.

The waste heat-recycled material temporarily stored in the waste material hopper 23 at the end of the drum 17 of the waste material dryer 14 is the mixer 30 mounted on the stand 29.
A predetermined amount is paid out to the
It is dropped into the transfer bucket 33 of the transfer device 32 via 31. The transport device 32 is for vertically transporting the heated recycled waste material to the heated recycled waste material storage bin 16 supported by the pedestal 34, and the transport bucket 33 loaded with the mixed and adjusted heated recycled waste material is a winch (not shown). ) And the bucket is attached to the inner sliding surface of the guide rail 35 made of shaped steel.
Ascend while rotating the roller attached to 33 in sliding contact.
Then, when it reaches a position facing the charging portion of the heating / recycled waste material storage bin 16, it is stopped and charged into the heated / recycled waste material bin. The heat-recycled waste material stored in the heat-recycled waste material storage bin 16 is used by being mixed with the asphalt mixture produced in the plant body 3, and the measuring tank 36 provided below the heat-recycled waste material storage bin 16 is used. Weigh a specified amount by
Run 36 along the running rail to the plant body 3,
It is put into a mixer mounted on the plant body 3.

Further, the conveying device 32 may be further extended to convey the heat-recycled waste material to the composite material silo 37. In this way, the heat-recycled waste material is stored in the composite material silo 37 and the heat-recycled waste material is shipped separately. You can also do it.

FIG. 5 shows another embodiment, and the same reference numerals as those in FIG. 1 denote the same components, and the description thereof will be omitted.

A waste material dryer 14 is provided above the aggregate dryer 1 to save space, and the second flue of the aggregate dryer 1 is also provided.
A dust collector 38 capable of merging 10 and the first flue 24 of the waste material dryer 14 to capture both the aggregate dryer 1 and the dust contained in the exhaust gas discharged from the waste material dryer 38.
Alternatively, the dust collecting device may be shared.

Furthermore, as another embodiment, a waste material dryer 14 is provided above the aggregate material dryer 1 to save space, and the dust collector 2 for the aggregate material dryer and the waste material dryer that captures dust derived from the aggregate material dryer 1 are provided. It is also possible to provide each of the waste material dryer dust collectors 15 for capturing the dust derived from the above-mentioned equipment on the ground, and in this case, space can be saved by the amount of the waste material dryer.

[Advantage of the Invention] As described above, in the asphalt mixture manufacturing plant according to claim 1 of the present invention, the waste material dryer 14 is piled up in the upper space of the aggregate dryer 1 to provide asphalt in the factory premises. Even if both the plant and the recycling plant are installed, the space is not much different from the space where the asphalt plant is installed independently, the space can be saved and the factory site can be effectively used, and the orderly factory layout can be achieved.

Moreover, it is possible to install both an asphalt plant and a recycling plant even in a small factory site, and it becomes easy to secure a factory site in the suburbs of the city, and the economic benefit is great.

Furthermore, the dryer, which is the main noise source of the plant, can be centrally placed in one place in the center of the site without being scattered in the factory site, which makes it easier to take noise countermeasures and also for soundproof construction such as soundproof buildings. Can be done easily.

Furthermore, when adding a recycling plant to an existing asphalt plant, it is not necessary to consider how the layout is done on the factory premises, and the layout can be easily determined.

Further, in the asphalt composite material manufacturing plant according to claim 1, by providing the waste material dryer dust collector 15 in the upper space of the aggregate dryer dust collector 2, the dust collector is the same as the dryer. In addition, space saving, ease of location in the suburbs of cities, ease of building construction, and ease of layout can be expected.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of an asphalt mixture manufacturing plant according to the present invention, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is a right side view of FIG. , Fig. 4 shows the first
FIG. 5 is a plan view and FIG. 5 is a front view showing another embodiment. 1 ... Aggregate dryer, 2 ... Dust collector for aggregate dryer, 3 ...
Plant body, 6 ... Burner, 14 ... Waste material dryer, 15 ... Dust collector for waste material dryer, 16 ... Heat recycle waste material storage bin, 21
… Burners

Claims (2)

[Scope of utility model registration request] 1. A waste material dryer that heats and regenerates asphalt paving waste material is provided in a space above an aggregate material dryer that is an aggregate material heating device of an asphalt plant, and dust discharged from each dryer is provided downstream of these dryers. An asphalt mixture manufacturing plant characterized by being provided with a dust collecting device for capturing. 2. A dust collector for an aggregate dryer, which captures dust derived from an aggregate dryer, and a dust collector for a waste material dryer, which captures dust derived from a waste dryer, as the dust collector. The asphalt mixture manufacturing plant according to claim 1, wherein the dust collector for the waste material dryer is provided in an upper space of the dust collector for the aggregate dryer.