Bags for dry powder transportation with a fluidization system

Abstract

A flexible container for containing a flowable material, including a primary chamber having an inlet at an upper part of the primary chamber through which the flowable material is loaded into the flexible container and a secondary chamber extending from a first side of the primary chamber at a lower part thereof and containing an outlet through which the flowable material exits the flowable container, the secondary chamber being configured to fold against the first side and be secured thereto, and when unsecured from the first side, the flowable material is allowed to exit the flexible container wherein the primary chamber and secondary chamber are each formed of an inner layer and an outer layer, wherein an inner layer comprises a laminate layer; and the outer layer comprises raffia.

1 . A flexible container for containing a flowable material, comprising:
 a primary chamber having an inlet at an upper part of the primary chamber through which the flowable material is loaded into the flexible container; and   a secondary chamber extending from a first side of the primary chamber at a lower part thereof and containing an outlet through which the flowable material exits the flowable container, the secondary chamber being configured to fold against the first side and be secured thereto, and when unsecured from the first side, the flowable material is allowed to exit the flexible container;   wherein the primary chamber and secondary chamber are each formed of an inner layer and an outer layer, wherein an inner layer comprises a laminate layer; and the outer layer comprises raffia.   
     
     
         2 . The flexible container of  claim 1 , wherein the laminate layer is configured to prevent the transfer of moisture. 
     
     
         3 . The flexible container of  claim 1 , wherein the inner layer constitutes 1 to 20 wt % of the combined inner and outer layers. 
     
     
         4 . The flexible container of  claim 1 , wherein the laminate layer comprises laminated polypropylene, polyethylene or combinations thereof. 
     
     
         5 . The flexible container of  claim 4 , wherein the polypropylene is a polypropylene homopolymer. 
     
     
         6 . The flexible container of  claim 4 , wherein the polyethylene is low density polyethylene. 
     
     
         7 . The flexible container of  claim 1 , wherein the laminate layer is formed from a polymer having a melt flow rate of more than 10 g/10 min according to ASTM D1238 measured at 230° C. and 2.16 kg. 
     
     
         8 . The flexible container of  claim 1 , wherein the raffia comprises a polypropylene homopolymer. 
     
     
         9 . The flexible container of  claim 1 , wherein the raffia is formed from a polymer having a melt flow rate of less than 10 g/10 min according to ASTM D1238 measured at 230° C. and 2.16 kg. 
     
     
         10 . The flexible container of  claim 1 , wherein the outer layer constitutes 80 to 99 wt % of the combined inner and outer layers. 
     
     
         11 . The flexible container of  claim 1 , further comprising:
 at least one support disposed on at least the primary chamber.   
     
     
         12 . The flexible container of  claim 11 , wherein the at least one support is one of a hook, handle or strap. 
     
     
         13 . The flexible container of  claim 1 , wherein the inlet is a cylindrical structure extending above a top surface of the flexible container. 
     
     
         14 . The flexible container of  claim 1 , wherein at least one fastener secures the secondary chamber against the primary chamber. 
     
     
         15 . The flexible container of  claim 1 , wherein the primary chamber further comprises internal supports configured to secure a fluidizing system. 
     
     
         16 . The flexible container of  claim 15 , wherein the primary chamber further comprises an opening through which the fluidizing system extends into the primary chamber. 
     
     
         17 . The flexible container of  claim 15 , wherein the fluidizing system comprises a partially perforated hose configured to expel a fluidizing agent into the flowable material. 
     
     
         18 . The flexible container of  claim 17 , wherein the fluidizing agent is compressed air. 
     
     
         19 . The flexible container of  claim 1 , wherein the content is cement. 
     
     
         20 . The flexible container of  claim 1 , wherein the primary chamber and secondary chamber form an L-shaped design when the secondary chamber is unsecured.