摘要:
An assembly for extending the shelf-life of a pressurized resin cartridge. The assembly includes at least one pressurized resin cartridge comprising a first compartment for holding a catalyst and a second compartment for holding a resin mastic. The assembly has a pressurized container sealingly disposed about the pressurized resin cartridge. Such assembly minimizes depressurization of the pressurized resin cartridge and extends the shelf-life of the pressurized resin cartridge. An assembly for extending the shelf-life of a depressurized resin cartridge. The assembly includes at least one depressurized resin cartridge comprising a first compartment for holding a catalyst and a second compartment for holding a resin mastic. The assembly has a pressurized container sealingly disposed about the depressurized resin cartridge. Such assembly increases pressurization of the depressurized resin cartridge and extends the shelf-life of the depressurized resin cartridge.
摘要:
An assembly for extending the shelf-life of a pressurized resin cartridge. The assembly includes at least one pressurized resin cartridge comprising a first compartment for holding a catalyst and a second compartment for holding a resin mastic. The assembly has a pressurized container sealingly disposed about the pressurized resin cartridge. Such assembly minimizes depressurization of the pressurized resin cartridge and extends the shelf-life of the pressurized resin cartridge. An assembly for extending the shelf-life of a depressurized resin cartridge. The assembly includes at least one depressurized resin cartridge comprising a first compartment for holding a catalyst and a second compartment for holding a resin mastic. The assembly has a pressurized container sealingly disposed about the depressurized resin cartridge. Such assembly increases pressurization of the depressurized resin cartridge and extends the shelf-life of the depressurized resin cartridge.
摘要:
A rock dusting composition composed of rock dust, e.g., limestone or other mineral dust, water, pumping aid, and polymer, e.g., acrylamide homopolymers, acrylamide copolymers, and combinations thereof, and a method for applying the composition to the surface of a mine. The composition has a water content and a polymer content sufficient to allow the polymer to (i) disperse water molecules within the composition and, upon drying of the composition, (ii) dissipate forming void spaces in the dried composition. The composition is useful for suppressing propagation of a flame and/or fire caused by ignition of coal dust and/or gas within a coal mine.
摘要:
A rock dusting composition composed of rock dust, e.g., limestone or other mineral dust, water, pumping aid, and polymer, e.g., acrylamide homopolymers, acrylamide copolymers, and combinations thereof, and a method for applying the composition to the surface of a mine. The composition has a water content and a polymer content sufficient to allow the polymer to (i) disperse water molecules within the composition and, upon drying of the composition, (ii) dissipate forming void spaces in the dried composition. The composition is useful for suppressing propagation of a flame and/or fire caused by ignition of coal dust and/or gas within a coal mine.
摘要:
A rock dusting apparatus comprising: a housing; a tank mounted within the housing which comprises a removable top wall member, a sidewall member and a bottom wall member configured to form an internal tank compartment for holding and mixing a rock dust composition; a mixer positioned on the bottom wall member for mixing the rock dust composition; a tank discharge port positioned on the bottom wall member or a lower portion of the sidewall member through which the rock dust composition can be discharged from the tank; a conduit extending from the tank discharge port to a housing discharge port; the conduit comprising a pump for transporting the rock dust composition through the conduit and through a discharge line operatively connected to the housing discharge port; and one or more motors mounted within the housing for powering the mixer and the pump. The apparatus is useful for spraying rock dust compositions for suppressing propagation of a flame and/or fire caused by ignition of coal dust and/or gas within a coal mine.
摘要:
A rock dusting apparatus comprising: a housing; a tank mounted within the housing which comprises a removable top wall member, a sidewall member and a bottom wall member configured to form an internal tank compartment for holding and mixing a rock dust composition; a mixer positioned on the bottom wall member for mixing the rock dust composition; a tank discharge port positioned on the bottom wall member or a lower portion of the sidewall member through which the rock dust composition can be discharged from the tank; a conduit extending from the tank discharge port to a housing discharge port; the conduit comprising a pump for transporting the rock dust composition through the conduit and through a discharge line operatively connected to the housing discharge port; and one or more motors mounted within the housing for powering the mixer and the pump. The apparatus is useful for spraying rock dust compositions for suppressing propagation of a flame and/or fire caused by ignition of coal dust and/or gas within a coal mine.