Method and tower for batching the aggregates in a plant for producing bituminous concretes and related production plant

A technology of asphalt concrete and coagulation, which is applied in the direction of roads, road repairs, roads, etc., and can solve problems such as the impossibility of standardization of waiting silos

Inactive Publication Date: 2006-05-17
BERNARDI IMPIANTI INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0025] The use of a lower metering hopper that receives the material discharged from all the waiting silos also raises the problem that the standardization of the waiting silos is not possible since the

Method used

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  • Method and tower for batching the aggregates in a plant for producing bituminous concretes and related production plant
  • Method and tower for batching the aggregates in a plant for producing bituminous concretes and related production plant

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Embodiment Construction

[0038] See attached picture, figure 1 A schematic diagram of an apparatus, generally indicated at 10, for the production of asphalt concrete is shown in . The plant 10 includes a zone 11 for preparing the aggregate and a zone or tower 12 for measuring or metering and mixing the formulation ingredients.

[0039] Zone 11 includes, for example, a feed device 13 which receives aggregates of different particle sizes (obtained by buckets from the stockpile 22 ) and feeds them into a known dryer 14 . The hot aggregate coming out of the dryer is lifted by a known elevator 15 , such as a bucket elevator, to the top of the mixing tower in zone 12 .

[0040] The different aggregates are sorted (by known sorting devices 16 ) into a plurality of storage or waiting silos 17 . As is known to those skilled in the art, depending on the mode of aggregate supply from zone 11, the sorting device may be of any known type. For example, if the aggregates had been selected in zone 11 and conveyed ...

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PUM

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Abstract

A method of metering aggregates to be introduced into the mixer of a plant for the production of asphalt concrete, the method comprising the following steps: in order to meter each aggregate, in the metering cycle by computer processing The control system of the control system fills the weighing hopper with the aggregate to be measured and operates to discharge the material in the weighing hopper into the mixer until the weight of the weighing hopper detected by the computerized control system has decreased by a certain amount, wherein the Said quantity has previously been set to correspond to the quantity of aggregate to be introduced into the mixer. A mixing tower (12) according to the method comprises a stirrer (19) and a metering hopper (18) for each aggregate, the metering hopper (18) being provided with a weighing device and fed into the mixture to be metered. Aggregate. The computer processing control system operation in the metering cycle discharges the material in the metering hopper (18) into the agitator (19) until the weight of the metering hopper detected by the computer processing control system decreases by a certain amount, which has been Previously set to correspond to the amount of aggregate to be introduced into the mixer. A plant ( 10 ) equipped with such a mixing column is also described.

Description

technical field [0001] The invention relates to a method and a tower for metering aggregates for the production of asphalt concrete, and also to a plant for the production of asphalt products. Background technique [0002] As is well known, bitumen is essentially formed from several different components such as gravel, sand, filler, binder (usually bitumen) and other substances (cork, cellulose, latex, resins, etc.) The main characteristics of the base product or the enhancement of the above characteristics. [0003] For each particular application (paving, airport runways, embankment covering, ground insulation, sports fields, etc.), asphalt is required to have different physical properties, but once these physical properties are planned and determined by the designer, the period must be complied with. For example, there is a characteristic property that distinguishes and correlates most of the different types of asphalt; this property is a particle size curve, ie a funct...

Claims

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Application Information

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IPC IPC(8): E01C19/10
CPCE01C19/1072
Inventor S·贝洛利
Owner BERNARDI IMPIANTI INT
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