Patent ID: 7820743
Filing Date: 2010-10-26
Classification: B29C,C08L

Abstract:
1. A process for preparing bitumen/asphalt bale comprising the steps of: (a) preparing and loading of the said bituminous products; (b) product storage, heat control and dispensing; (c) encapsulation and forming of the bituminous product strips; and (d) rolling the said strips into bale form; whereby the said bituminous products being introduced into a baling process line by way of an overhead pipeline through which heated bituminous product is pumped at a temperature in excess of 120° C., then cooled to the appropriate temperature for dispensing of the bituminous product in a cool very viscous state by means of a piston; the product being stored in storage/cooling tank (AA), the said tank being filled via nozzle/gate valve (B1) after the piston (C) being raised to the top of tank (AA) by means of a hydraulic ram, winch or any other suitable driving means (D); the product being cooled by skin effect air blowing as soon as the said storage tank (AA) is filled, the said heat transfer being enhanced by fitting a wire mesh (I) around the circumference of the said tank (AA) and the cooling efficiency being enhanced by agitation of the said tank contents by way of a mixer plunger mounted on the plunger piston (C); after cooling to the desired temperature the product being transferred from the said storage tank (AA) connected to a tank (A) by way of the said inter tank nozzles/gate valves (B1) wherein the temperature of the product at this stage being sufficiently high so as to allow transfer from the storage tank (AA) by way of compression created by the downward stroke of the piston (C) installed in tank (AA), the said piston (C) being lowered by the said hydraulic ram, winch or any other suitable driving means (D); encapsulation and forming of the said bituminous product strips having further steps of (i) encapsulation of the said products in polyethylene (PE) sleeves, (ii) automatic loading of the said capsules, (iii) forming of the bituminous product strips and (iv) cooling of the said strips; and rolling the said products into a bale being performed by way of a baler wherein a lead end of the said bitumen strip being picked up by a roller press which guides the strip into the baler and driving force generated by the said roller press pushes the strip into curved smooth guides of the said baler that form the strip into a circular bale, the said products being rolled into spiral forms for ease of stacking and storage in warehouse.