Systems and methods for managing bulk material efficiently at a well site are provided. The disclosure is directed to a container support frame that is integrated into a blender unit. The support frame is used to receive one or more portable containers of bulk material, and the blender unit may include a gravity feed outlet for outputting bulk material from the containers directly into a mixer of the blender unit. The blender unit with integrated support frame may eliminate the need for any subsequent mechanical conveyance of the bulk material (e.g., via a separate mechanical conveying system or on-blender sand screws) from the containers to the mixer. As such, the integrated blender unit may be lighter weight, take up less space, and have a lower cost and complexity than existing blenders.

The disclosure relates to a labelling machine for applying labels onto containers using cold glue, comprising a glue supply device. The glue supply device is configured to produce the cold glue from several components, in particular at least one liquid and one solid component, so that the cold glue required for applying the labels can be produced by processing the components, in particular mixing them together.

The disclosure relates to a labelling machine for applying labels onto containers using cold glue, comprising a glue supply device. The glue supply device is configured to produce the cold glue from several components, in particular at least one liquid and one solid component, so that the cold glue required for applying the labels can be produced by processing the components, in particular mixing them together.

A computer numerically controlled flow resistance system based on container features and properties of food ingredients comprises a mixing chamber, a stirring element, a pushing plate and a resetting element. The mixing chamber is communicated to sources of food ingredients of various colors, and the stirring element is disposed in the mixing chamber for stirring the food ingredients of various colors, so that the food ingredients after mixing have a desired color. The pushing plate is used to extrude the stirred food ingredients in the mixing chamber to a pastry tip of a pastry extrusion head. The resetting element makes a piston cylinder move to an extruding position according to an extrusion signal of a controller, and when the pushing plate stops displacing, the resetting element makes the piston cylinder move to a flow resistance position according to a flow resistance signal of the controller.

An electrically driven oilfield blender system is configured to utilize electric motors as electric prime movers to prepare frac slurry and move the frac slurry to an oilfield pressure pumping system or pressure pumper that pumps the frac slurry into a subterranean formation. Each of the prime mover electric motors may operate at a fixed or constant rated speed and may be connected to a transmission that can drive a device such as a feed pump for a mixing tub or an auxiliary device at a variable speed. An electro-hydraulic motor start system includes an electric motor that powers a hydraulic pump. The hydraulic pump drives hydraulic motors that pre-rotate the prime mover electric motors to their rated speeds before they are energized.

The present disclosure relates to a milk-of-lime preparation apparatus and preparation method having waste heat recovery line, that may recover waste heat generated during preparation of liquid milk-of-lime and deliver the recovered waste heat to water, so as to supply the water at an optimal temperature necessary for a hydration reaction, thereby increasing the reaction efficiency and reducing the preparation time of the milk-of-lime. Especially, the milk-of-lime preparation apparatus consists of a water tank that receives room temperature water from a water supply pipe and stores the received water inside the water tank; a raw material input pipe that transfers calcine lime powder from one end to the other end through pressure supply from a BCT vehicle that carries the calcine lime powder; a water input pipe of which one end is connected with the water tank, and that receives the water stored inside the water tank and transfers the received water to the other end; a milk-of-lime tank that receives the water from the other end of the water input pipe, that receives the calcine lime powder from the other end of the raw material input pipe, and that stirs the received calcine lime powder and the water by means of a stirrer installed inside the milk-of-lime tank, to prepare and store milk-of-lime; a discharge pipe that is installed at one side of the milk-of-lime tank to discharge the milk-of-lime stored inside the milk-of-lime tank; and a waste heat recovery line that circulates the water such that the water stored inside the water tank exchanges heat with the milk-of-lime stored inside the milk-of-lime tank and then is stored back inside the water tank.

The present disclosure relates to a milk-of-lime preparation apparatus and preparation method having waste heat recovery line, that may recover waste heat generated during preparation of liquid milk-of-lime and deliver the recovered waste heat to water, so as to supply the water at an optimal temperature necessary for a hydration reaction, thereby increasing the reaction efficiency and reducing the preparation time of the milk-of-lime. Especially, the milk-of-lime preparation apparatus consists of a water tank that receives room temperature water from a water supply pipe and stores the received water inside the water tank; a raw material input pipe that transfers calcine lime powder from one end to the other end through pressure supply from a BCT vehicle that carries the calcine lime powder; a water input pipe of which one end is connected with the water tank, and that receives the water stored inside the water tank and transfers the received water to the other end; a milk-of-lime tank that receives the water from the other end of the water input pipe, that receives the calcine lime powder from the other end of the raw material input pipe, and that stirs the received calcine lime powder and the water by means of a stirrer installed inside the milk-of-lime tank, to prepare and store milk-of-lime; a discharge pipe that is installed at one side of the milk-of-lime tank to discharge the milk-of-lime stored inside the milk-of-lime tank; and a waste heat recovery line that circulates the water such that the water stored inside the water tank exchanges heat with the milk-of-lime stored inside the milk-of-lime tank and then is stored back inside the water tank.

A hyperboloid agitator for circulating liquids, in particular water, wastewater or the like, in the centre of which a connection portion (2) for connection to a hollow agitator shaft (1) is provided, characterised in that the hyperboloid agitator is formed as a hollow body, with a central aperture (3) for supplying air being provided in the connection portion (2), and in that an air distribution device (9, 10, 11) for distributing air supplied through the aperture (3) to a plurality of air outlet openings (14) provided in the hollow body is provided downstream of the aperture (3).

A computer numerically controlled flow resistance system based on container features and properties of food ingredients comprises a mixing chamber, a stirring element, a pushing plate and a resetting element. The mixing chamber is communicated to sources of food ingredients of various colors, and the stirring element is disposed in the mixing chamber for stirring the food ingredients of various colors, so that the food ingredients after mixing have a desired color. The pushing plate is used to extrude the stirred food ingredients in the mixing chamber to a pastry tip of a pastry extrusion head. The resetting element makes a piston cylinder move to an extruding position according to an extrusion signal of a controller, and when the pushing plate stops displacing, the resetting element makes the piston cylinder move to a flow resistance position according to a flow resistance signal of the controller.

A computer numerically controlled flow resistance system based on container features and properties of food ingredients comprises a mixing chamber, a stirring element, a pushing plate and a resetting element. The mixing chamber is communicated to sources of food ingredients of various colors, and the stirring element is disposed in the mixing chamber for stirring the food ingredients of various colors, so that the food ingredients after mixing have a desired color. The pushing plate is used to extrude the stirred food ingredients in the mixing chamber to a pastry tip of a pastry extrusion head. The resetting element makes a piston cylinder move to an extruding position according to an extrusion signal of a controller, and when the pushing plate stops displacing, the resetting element makes the piston cylinder move to a flow resistance position according to a flow resistance signal of the controller.