A method for unloading a payload at a loading station includes selecting the payload to be unloaded from different payloads and registering a total target quantity of the selected payload to be unloaded at the loading station as a target quantity unit, a current total quantity of the selected payload that has already been unloaded at the loading station as an actual quantity unit, a number of already performed unloading procedures corresponding to a quantity of the selected payload that has already been unloaded at the loading station, or a difference between the target quantity unit and the actual quantity unit.

A method for unloading a payload at a loading station includes selecting the payload to be unloaded from different payloads and registering a total target quantity of the selected payload to be unloaded at the loading station as a target quantity unit, a current total quantity of the selected payload that has already been unloaded at the loading station as an actual quantity unit, a number of already performed unloading procedures corresponding to a quantity of the selected payload that has already been unloaded at the loading station, or a difference between the target quantity unit and the actual quantity unit.

A proppant container facilitates the transportation of wet sand for use in a hydraulic fracturing operation. The proppant container is provided with a system for dislodging the wet sand for subsequent use. This may be done by use of a vibrator or an umbrella valve. In another aspect, the proppant container may be used in combination with a rack having a wash system that slurries the proppant for delivery to a blender tub without necessarily resorting to use of a conveyor belt.

A powder rotary fluidization device and a method thereof are provided. The powder rotary fluidization device includes a support device, the support device is provided with an installing plate, the installing plate is provided with a power device and a fluidization device, and the power device is in transmission connection with the fluidization device. After a position of the fluidization device on the installing plate is adjusted through the support device, the power device is started to drive the fluidization device to rotate, and meanwhile gases are introduced into the fluidization device to process powder. and therefore the problem of poor processing effect on fine powder with high viscosity is solved through the rotatable fluidization device.

A method for unloading a payload at a loading station includes selecting the payload to be unloaded from different payloads and registering a total target quantity of the selected payload to be unloaded at the loading station as a target quantity unit, a current total quantity of the selected payload that has already been unloaded at the loading station as an actual quantity unit, a number of already performed unloading procedures corresponding to a quantity of the selected payload that has already been unloaded at the loading station, or a difference between the target quantity unit and the actual quantity unit.

A method for unloading a payload at a loading station includes selecting the payload to be unloaded from different payloads and registering a total target quantity of the selected payload to be unloaded at the loading station as a target quantity unit, a current total quantity of the selected payload that has already been unloaded at the loading station as an actual quantity unit, a number of already performed unloading procedures corresponding to a quantity of the selected payload that has already been unloaded at the loading station, or a difference between the target quantity unit and the actual quantity unit.

A bulk tank trailer including an interior storage compartment, at least one straight rear wheel axle supporting a plurality of ground-engaging wheels and a longitudinally aligned discharge pipe in operative communication with the interior storage compartment is disclosed. The entire discharge pipe may be positioned above a transverse plane of the at least one straight rear wheel axle. A method of discharging particulate materials is also disclosed. The method includes filling an interior storage compartment on a bulk tank trailer with the particulate materials, positioning a straight discharge pipe above a straight rear wheel axle on the bulk tank trailer, moving the particulate materials from the interior storage compartment along the straight discharge pipe and discharging the particulate materials from the discharge pipe.

A bulk tank trailer including an interior storage compartment, at least one straight rear wheel axle supporting a plurality of ground-engaging wheels and a longitudinally aligned discharge pipe in operative communication with the interior storage compartment is disclosed. The entire discharge pipe may be positioned above a transverse plane of the at least one straight rear wheel axle. A method of discharging particulate materials is also disclosed. The method includes filling an interior storage compartment on a bulk tank trailer with the particulate materials, positioning a straight discharge pipe above a straight rear wheel axle on the bulk tank trailer, moving the particulate materials from the interior storage compartment along the straight discharge pipe and discharging the particulate materials from the discharge pipe.

A powder rotary fluidization device and a method thereof are provided. The powder rotary fluidization device includes a support device, the support device is provided with an installing plate, the installing plate is provided with a power device and a fluidization device, and the power device is in transmission connection with the fluidization device. After a position of the fluidization device on the installing plate is adjusted through the support device, the power device is started to drive the fluidization device to rotate, and meanwhile gases are introduced into the fluidization device to process powder. and therefore the problem of poor processing effect on fine powder with high viscosity is solved through the rotatable fluidization device.

A flange assembly comprises an annular mounting ring and a gate. The annular mounting ring is configured to be welded to the equipment and to connect an air cannon thereto. The mounting ring comprises threaded bolt holes and a slot and encircles a fluid passageway. The gate comprises a blocking portion that is frangibly connected to a flange portion. The gate is at least partially insertable through the slot such that the blocking portion is able to at least partially prevent fluid flow through the fluid passageway. The flange portion is configured to be securely attached to the annular mounting ring after the blocking portion of the gate has been frangibly disconnected from the flange portion.