ES1070188U - Doser of solid additives for asphalt plants (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Dispenser of solid additives for asphalt plants, of which they incorporate a pair of hoppers supplying respective additives, a scale and a pneumatic propeller towards the corresponding mixer, characterized in that it incorporates a supporting frame of all its components, in which it is defined a base and flat bottom of direct support on the ground and that has eyebolts for lift and handling with the aid of a crane, establishing in one of the ends of said frame a couple of hoppers for the additives, which discharge on respective augers that from said end and at the lower level thereof they go to the opposite end and to the upper level, unloading on the scale under which the pneumatic impeller is located, said chassis incorporating at this same end and in an arrangement adjacent to said impeller, a compressor assisted by a pressure accumulation tank or tank, which supplies it to the aforementioned pr oppressor. (Machine-translation by Google Translate, not legally binding)

Description

Solid additive dispenser for plants asphalt

Object of the invention

The present invention relates to a solid additive dispenser, which has been especially conceived to be used in asphalt plants, as a complement of the general installation for product elaboration asphalt that will later be applied on the road.

The object of the invention is to achieve a mobile dispenser, which is easily transportable from a plant asphaltic to another, and may even change position within the same plant, depending on certain requirements or space availability

Background of the invention

As is known, in the production of products Asphaltic certain solid additives are used among which It should be noted adhesives activators, additives anti-ice, natural asphalt, cellulose fiber, NFU rubber, pigments, synthetic binders, polymers, etc.

These additives are used selectively according to the cases, in order to improve resistance, delay icing, harden the mixtures, stabilize them, modify rheology, etc.

Despite this considerable number of additives, in practice and in a certain asphalt plant they are usually used Only two of them.

Asphalt plants known to date consist of fixed installations, which require a foundation previous, to which the different components are fixed, such as the hoppers that supply the aforementioned additives, the elements conveyors and dispensers, the mixer, etc.

This fixed character of the plant brings with it a complex installation of it, and consequently expensive, what same happens with its disassembly when its Transfer to a new location.

Description of the invention

The dispenser proposed by the invention resolves in a fully satisfactory way the problem previously exposed, so that said dispenser, with its accessories, it constitutes a mobile unit, of reduced volumetry, easily transportable on the loading platform of a normal truck, it is say without needing to place special transports, with the consequent costs that this would entail.

More specifically the dispenser than the proposed invention is constituted from a frame, in the that a flat support base is defined directly on the ground, base that dimensionally adapts to the demands of a normal road transport, the said frame being the fixing means for a couple of hoppers supplying the additives, which pour over respective augers conveniently motorized and speed adjustable, for get the dosage in regards to the proportions in which both additives must participate in the mixture, augers that pour on a scale located at the upper level and that remains superimposed on a propellant, on which it discharges each dose of suitably heavy additives, for said propellant to send the said dose to the mixer of the installation, outside the device.

This propulsion of the additive mixture is carried out pneumatically, with the collaboration of a compressor also installed on the frame and assisted by a boiler of considerable capacity, from which the necessary pressure to said propellant.

The structure described is complemented by a cat ladder that extends from the base of the frame to the upper level of the hoppers, for inspection of them from an area conveniently protected by a railing.

In this way a compact set is achieved which not only occupies a floor area of minimum dimensions, but its height is also substantially reduced, which facilitates both loading and unloading on a transport vehicle, As the transport itself.

Description of the drawings

To complement the description that is being performing and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical realization of it, is accompanied as an integral part of said description, a set of drawings where with character Illustrative and not limiting, the following has been represented:

Figure 1.- Shows a representation side elevation schematic of a solid additive dispenser for asphalt plants made in accordance with the purpose of the present invention

Figure 2.- Sample, also according to a schematic representation, the set of the previous figure seen in plant.

Preferred Embodiment of the Invention

In view of the figures outlined you can be observed as the doser that the invention proposes is constituted from a frame (1) in which they participate stringers, crossbars and uprights, and in which it is defined a lower base (2), substantially flat, in turn structured by stringers (3) and crossbars (4), duly welded, with a structural rigidity that ensures a perfect settlement Direct on the ground.

The frame thus structured, prismatic rectangular and elongated, incorporates in one of its ends a couple of hoppers (5-5 '), for respective additives solids, hopper that through respective conical bases (6-6 ') pour over respective augers (7-7 '), conveniently operated by respective electric motors (8) with their corresponding reducers (9).

As can be seen in figure 1, those mentioned engines (8) occupy a lower extreme position, within the frame, as well as the corresponding limb of the augers (7-7 '), so that the height of the additive hoppers (5-5 ') be minimal.

With the sharply inclined provision that shows the aforementioned figure 1, the augers (7-7 ') are extend to the upper area of the other end of the frame, where they unload on a scale (10), so that while proportions of both additives are determined by the speed of rotation of the respective motor-reducers  (8-9), the scale (10) has the function establish each dose of the additive mixture that is supplied to the kneader

Under the scale (10) there is a propeller (11), duly connected to said scale (10) and in charge of sending each dose of additives to the kneader, specifically through a flexible and wear-resistant hose connected to its outlet (12).

The propulsion of the additive mixture is performs pneumatically, for what at this same end of the frame (1) and occupying the space that the propeller leaves free (11), there is a compressor (13) assisted by a boiler of pressure (14) of considerable capacity and that, as noted especially in figure 2, it occupies the middle area of the frame, specifically the one left free by the two augers (7-7 '), among which a cat ladder is placed (15) that allows staff access to a higher platform (16), located next to the hoppers (5-5 ') and assisted by a guardrail (17), as seen in turn Figure 1

As follows from the above and It follows from the observation of the drawings, you get a Very compact dispenser, small in size, with high benefits and with a mobile character, so that with the collaboration of a crane and with the appropriate provision on the frame (1) of lifting eyebolts, not shown, results easily loadable in a vehicle and downloadable on a vehicle New workplace.

Claims (3)

1. Solid additive dispenser for asphalt plants, including a pair of hoppers that supply respective additives, a scale and a pneumatic propeller to the corresponding mixer, characterized in that it incorporates a support frame of all its components, in which it is defined a lower and flat base of direct support on the ground and that has eyebolts for support and manipulation with the contest of a crane, establishing in one of the ends of said frame a pair of hoppers for the additives, that unload on respective augers that from said end and at the lower level of it they go to the opposite end and at the upper level, unloading on the scale under which the pneumatic propeller is located, incorporating said frame at this same end and in an adjacent arrangement to said propeller, a compressor assisted by a boiler or pressure accumulation tank, which supplies it to said prop ulsor 2. Solid additive dispenser for asphalt plants, according to claim 1, characterized in that said augers are assisted by respective variable speed motor-reducers, which allow dosing the proportions of the different additives that reach the scale. 3. Solid additive dispenser for asphalt plants, according to previous claims, characterized in that the boiler is located at the mid-level of the base of the frame, occupying the free space left by the augers, while between them there is a ladder of jack for ascent to an upper platform, inspection of the hoppers of the additives, platform assisted by a safety railing.