Abstract: A secondary silo on a second portable frame is independently portable relative to a primary silo and a vertical conveyor on a first portable frame. The vertical conveyor conveys flowable proppant material from an intake hopper below the primary silo into either one of the silos. The silos have gravity discharge chutes that are gravity fed directly into a proppant blender unit. An unloader on wheels is self-propelled and steerable relative to the silos. The unloader can be lowered relative to the wheels to sit on the ground to allow vehicles to drive over the unloader for discharge. Intake hoppers of the unloader can be raised up against the vehicle to form a closed duct discharging from the vehicles into the unloader. A discharge of the unloader forms a closed passage with the intake hopper of the vertical conveyor.

Abstract: A secondary silo on a second portable frame is independently portable relative to a primary silo and a vertical conveyor on a first portable frame. The vertical conveyor conveys flowable proppant material from an intake hopper below the primary silo into either one of the silos. The silos have gravity discharge chutes that are gravity fed directly into a proppant blender unit. An unloader on wheels is self-propelled and steerable relative to the silos. The unloader can be lowered relative to the wheels to sit on the ground to allow vehicles to drive over the unloader for discharge. Intake hoppers of the unloader can be raised up against the vehicle to form a closed duct discharging from the vehicles into the unloader. A discharge of the unloader forms a closed passage with the intake hopper of the vertical conveyor.

Abstract: An ozone treatment apparatus for grain uses first and second storage bins and an auger conveyor for conveying the grain from a first end in communication with the bottom of the first bin to a second end that can be directed into either one of the top of the first bin or the top of the second bin. An ozone injector injects ozone into the auger conveyor for mixing with and treating the conveyed grain. In a first mode, the conveyor discharges the grain from the second end of the conveyor through a first discharge outlet into the first storage bin to recycle the grain during treatment. In a second mode, the conveyor discharges the grain through a second discharge outlet into the second storage bin once treatment is complete.

Abstract: A collapsible storage system for flowable material, for example granular material, includes a base frame and an upper frame which is movable between a collapsed position and a working position spaced above the collapsed position. A plurality of storage silos are supported in a row, each including a hopper discharge cone on the base frame and a collapsible tubular wall assembly connected between the discharge cone and the upper frame. Redundant loading conveyors are provided in communication with the silos across the upper frame for loading and redundant unloading conveyors are provided in communication with the silos across the base frame.

Abstract: A portable conveyor system receives and conveys particulate material to downstream equipment. The system includes a base frame, a material handling assembly carried on the base frame for depositing the material into the downstream equipment, and at least one adjustable feed conveyor to convey the material from a source onto the material handling assembly. The feed conveyor is movable in various manners relative to the base frame between a working position and a stored position. The material handling assembly includes a main conveyor assembly to convey material along the base frame from the feed conveyors to an elevating assembly at one end of the base frame. The elevating assembly is collapsible in height relative to the base frame for transport.

Abstract: A secondary silo on a second portable frame is independently portable relative to a primary silo and a vertical conveyor on a first portable frame. The vertical conveyor conveys flowable proppant material from an intake hopper below the primary silo into either one of the silos. The silos have gravity discharge chutes that are gravity fed directly into a proppant blender unit. An unloader on wheels is self-propelled and steerable relative to the silos. The unloader can be lowered relative to the wheels to sit on the ground to allow vehicles to drive over the unloader for discharge. Intake hoppers of the unloader can be raised up against the vehicle to form a closed duct discharging from the vehicles into the unloader. A discharge of the unloader forms a closed passage with the intake hopper of the vertical conveyor.

Abstract: An ozone treatment apparatus for grain uses first and second storage bins and an auger conveyor for conveying the grain from a first end in communication with the bottom of the first bin to a second end that can be directed into either one of the top of the first bin or the top of the second bin. An ozone injector injects ozone into the auger conveyor for mixing with and treating the conveyed grain. In a first mode, the conveyor discharges the grain from the second end of the conveyor through a first discharge outlet into the first storage bin to recycle the grain during treatment. In a second mode, the conveyor discharges the grain through a second discharge outlet into the second storage bin once treatment is complete.

Abstract: A portable conveyor system receives and conveys particulate material to downstream equipment. The system includes a base frame, a material handling assembly carried on the base frame for depositing the material into the downstream equipment, and at least one adjustable feed conveyor to convey the material from a source onto the material handling assembly. The feed conveyor is movable in various manners relative to the base frame between a working position and a stored position. The material handling assembly includes a main conveyor assembly to convey material along the base frame from the feed conveyors to an elevating assembly at one end of the base frame. The elevating assembly is collapsible in height relative to the base frame for transport.

Abstract: A collapsible storage system for flowable material, for example granular material, includes a base frame and an upper frame which is movable between a collapsed position and a working position spaced above the collapsed position. A plurality of storage silos are supported in a row, each including a hopper discharge cone on the base frame and a collapsible tubular wall assembly connected between the discharge cone and the upper frame. Redundant loading conveyors are provided in communication with the silos across the upper frame for loading and redundant unloading conveyors are provided in communication with the silos across the base frame.

Abstract: A modular storage tank has a secondary containment receptacle defined by a plurality of rigid floor panels which are joined to one another to form a continuous floor and a plurality of rigid, upright wall panels joined to one another to form a continuous perimeter wall extending upwardly from the continuous floor, and a primary containment receptacle defined by a flexible line membrane within the secondary containment receptacle. The wall panels are joined to one another using a gasket and threaded fasteners such that the wall panels are readily separable from one another for reuse at different site after disassembly. The floor panels are joined to one another and to the perimeter wall by welded seams.

Abstract: A heating assembly for heating a liquid storage tank includes a heat exchanger tank supported in one wall of the storage tank to extend into the storage tank in contact with liquid stored therein. The heat exchanger tank contains a heat exchanger fluid therein which is heated by a burner tube extending through the heat exchanger tank whereby heat is only transferred to the liquid in the storage tank through the heat exchanger fluid. A controller actuates the burner head of the burner tube to maintain temperature of the heat exchanger fluid between upper and lower temperature limits. The operation of the burner head is interrupted in response to temperature of the liquid in the storage tank exceeding an upper limit, or fluid level in the heat exchanger tank being below a lower limit as determined by respective sensors.

Abstract: A modular storage tank has a secondary containment receptacle defined by a plurality of rigid floor panels which are joined to one another to form a continuous floor and a plurality of rigid, upright wall panels joined to one another to form a continuous perimeter wall extending upwardly from the continuous floor, and a primary containment receptacle defined by a flexible line membrane within the secondary containment receptacle. The wall panels are joined to one another using a gasket and threaded fasteners such that the wall panels are readily separable from one another for reuse at different site after disassembly. The floor panels are joined to one another and to the perimeter wall by welded seams.

Abstract: A pile cutting device is used with a work vehicle including a tool supporting arm assembly for cutting a pile. The device has a main frame carried on the arm assembly of the work vehicle. A first clamp on the frame is clamped about the pile for fixing the frame relative to the pile. A cutting assembly on the main frame includes a saw blade supported on a cutter linkage to move the blade about the pile and cut a pile section from the pile when the remaining lower portion of the pile remains secured within the lower clamp. A second clamp on the frame is clamped about the cut pile section of the pile before cutting. The first clamp is released after cutting so that the cut pile section within the second clamp can be moved away from the remaining lower portion of the pile together with work vehicle subsequent to cutting.

Abstract: A dual tank structure includes first and second tanks with a common secondary containment structure which are all integrally supported on a common base frame. The common base frame includes longitudinal skids so as to be suitable for transport using a conventional winch truck. A passageway with an integral valve therein permits selective communication between the tanks. The common containment structure has a containment volume which is greater than a storage volume of a largest one of the first tank and the second tank and which is less than a combined storage volume of both the first tank and the second tank.

Abstract: A grain bin aeration system has inlet ducting in communication with the hollow interior of the storage bin adjacent a perimeter of the storage bin and exhaust ducting in communication with the hollow interior of the storage bin at a central location within the storage bin. A first portion of the inlet ducting is directed to the top end of the bin so that aeration flow therethrough is directed downwardly through the material in the storage bin to the exhaust ducting. A second portion of the inlet ducting is directed to the bottom end of the bin so that aeration flow therethrough is directed upwardly through the material in the storage bin to the exhaust ducting.

Abstract: In an oil storage tank having an interior oil storage chamber and a tank opening in one of the boundary walls, a heating assembly is supported to extend into the interior oil storage chamber from the tank opening. The assembly includes a casing of walls surrounding with a casing mounting flange mountable in sealing engagement relative to a tank mounting flange about the full perimeter of the tank opening such that the casing protrudes into the interior oil storage chamber of the oil storage tank. The heating chamber is suitable sized and configured to operably receive a catalytic heater therein. The heating chamber further accommodates entry of combustion air and combustion fuel into the heating chamber and exhaust of emissions therefrom.

Abstract: A dual tank structure includes first and second tanks with a common secondary containment structure which are all integrally supported on a common base frame. The common base frame includes longitudinal skids so as to be suitable for transport using a conventional winch truck. A passageway with an integral valve therein permits selective communication between the tanks. The common containment structure has a containment volume which is greater than a storage volume of a largest one of the first tank and the second tank and which is less than a combined storage volume of both the first tank and the second tank.

Abstract: A hopper support cone for a grain bin includes a perimeter footing support, upstanding support legs mounted on the footing support, and an inverted cone shaped hopper wall carried by the support legs in a suspended position above a support surface. The hopper support cone features top and bottom junctions respectively located at top and bottom ends of support legs and respectively joining each support leg to each of the hopper wall and the footing support. Each of the top and bottom junctions comprise upper and lower bracing members forming gusset-like structures which provide rigidity for the hopper support cone while leaving a continuous portion of the length of each support leg uninterrupted between the top and bottom junctions and a continuous portion of the hopper wall uninterrupted from the central opening thereof towards the peripheral edge. Thus, access to the continuous portion of the hopper wall is unobstructed.

Abstract: A hopper bottom for a grain bin includes a hopper wall having an inverted cone shape so as to taper downwardly and inwardly towards a central bottom opening and including ventilation openings therein. Perforated ducts extend into the grain bin from the ventilation openings. According to one embodiment upright support legs support the hopper wall above the foundation. Each upright support leg has a hollow interior chamber to direct air from an inlet manifold structure to the ventilation openings in the hopper wall. According to another embodiment, an outer support wall supports the hopper wall above a floor structure which collectively enclose a manifold space which directs air from a blower into the ventilation openings in the hopper wall.

Abstract: A hopper bottom for a grain bin includes a hopper wall having an inverted cone shape so as to taper downwardly and inwardly towards a central bottom opening and including ventilation openings therein. Perforated ducts extend into the grain bin from the ventilation openings. According to one embodiment upright support legs support the hopper wall above the foundation. Each upright support leg has a hollow interior chamber to direct air from an inlet manifold structure to the ventilation openings in the hopper wall. According to another embodiment, an outer support wall supports the hopper wall above a floor structure which collectively enclose a manifold space which directs air from a blower into the ventilation openings in the hopper wall.