A mobile aggregate hopper for a volumetric and gravimetric mixer having arcuate longitudinal walls for holding and isolating aggregate. The mobile aggregate hopper has a base integral with the arcuate longitudinal walls with an aggregate transfer conveyor and means for attachment to a trailer or chassis having wheels. The single sheet structure of the longitudinal arcuate side walls minimizes welding and mechanical joints during manufacturing and provides a hopper with high strength and capacity and low overall weight.

The present invention discloses electro-hydraulic hybrid drive sand-mixing equipment, including a skid base, an electric motor, a hydraulic pump, a discharge centrifugal pump, a suction centrifugal pump, a mixing tank, a dry additive system, a liquid additive system, and a sand auger system. The electric motor, the hydraulic pump, the discharge centrifugal pump, the suction centrifugal pump, the mixing tank, the dry additive system, the liquid additive system, and the sand auger system are integrally skid mounted on the skid base. There are two electric motors, including a first electric motor and a second electric motor. The first electric motor drives the discharge centrifugal pump, and the second electric motor actuates the hydraulic pump, to drive the suction centrifugal pump, the mixing tank, the dry additive system, the liquid additive system, and the sand auger system. The electric motor is an integrated variable-frequency drive electric motor. Beneficial effects: Two integrated variable-frequency drive electric motors are applied. First, the setup of an independent variable-frequency drive cabinet is effectively omitted, that is, the overall size of the sand-mixing equipment is effectively reduced, so that it is more flexible and convenient to transport the equipment and arrange a well site. Next, a control system is simpler, thus optimizing the power matching of the sand-mixing equipment.

A device for processing oil or gas well waste solids, the device including a pressurizing discharge unit having a casing. The casing includes a solids inlet and a water inlet. The solids inlet receives treated solids into a front end of the casing, where the treated solids are exposed to a reduced pressure in an internal chamber of the casing of less than atmospheric pressure. The water inlet receives water and adds the water to the treated solids in the internal chamber. The casing includes an extruder screw unit, the extruder screw unit having progressive screw sections located inside the internal chamber and corresponding to conveying mixing and pressurizing screw sections. The conveying screw section conveys the treated solids along a long axis length of the extruder screw unit from the solids inlet towards a discharge end of the casing while the reduced pressure is maintained, the mixing screw section mixes the treated solids and the water together to form a paste, and the pressurizing screw section conveys the paste towards the discharge end and generates, in a portion of the casing downstream from the mixing screw section, a backpressure that is greater than atmospheric pressure. The casing includes a die assembly to extrude the paste through an orifice of the die assembly located at the discharge end while maintaining the backpressure on the paste in the internal chamber. Method and system embodiments for processing oil or gas well waste solids are also disclosed.

The invention relates generally to a mixing system for mixing a dry material with a liquid. The mixing system includes a supply of dry material and a supply of liquid. An infinitely variable metering device meters the dry material into the liquid. A sensor senses the ratio of dry material to liquid. The sensor is operatively connected to the metering device to control the metering device to obtain a desired ratio of dry material to liquid. The dry material is dispensed volumetrically by volume of liquid to form the desired ratio of dry material to liquid.

Provided is an automatic continuous weighing/raw material supply system of a flooring tile manufacturing apparatus, and more particularly to an automatic continuous weighing/raw material supply system of a flooring tile manufacturing apparatus, which can stably supply a raw material to the flooring tile manufacturing apparatus.

Agitation assemblies for a spreader having a rotatable feeding mechanism are provided that utilize the rotation of the feeding mechanism to oscillate an agitation member within the spreader. A crank is coupled to the feeding mechanism and a connecting linkage connects between the agitation member and the crank so that as a drive mechanism rotates the feeding mechanism to dispense spreading material towards a dispensing opening, the connecting linkage oscillates the agitation member. The agitation member can be a baffle or agitation plate. The oscillation of the agitation member can be pivoting or sliding oscillation.

The invention is a weighing and mixing system for the preparation of mixtures of components required by processing machines for the manufacture of plastic products. In particular the invention is suitable for the preparation of weighed mixtures comprised of at least two different masterbatches in order to obtain the color shade desired for a specific plastic product.

A liquid polymer or chemical activation system, having a chamber; a top cover plate, a middle cover plate and a bottom cover plate; wherein such configuration creates a hollow space inside the chamber that is flanked by the top cover plate and the bottom cover plate; a blending reactor with one or more inlets for receiving one or more substances; an upper multistage mixing cup configured to receive the one or more substances from the one or more inlets; at least one high shear mixer for mixing the one or more substances; at least one submersible actuator for actuating the high shear mixer; an intermediate blending section for receiving the one or more substances from the upper multistage mixing cup; a lower multistage aging cup for further mixing of the one or more substances; and at least one outlet on the bottom cover plate for releasing the one or more substances.

The present disclosure includes embodiments of a recirculation system and methods for mitigating release of silica dust at a hydrocarbon well site. The embodiments of the recirculation system may include a blender hopper, one or more proppant silos, a footed hood, a conveyor, one or more amplifiers, one or more compressed air sources, one or more vacuum hoses, an augur, and a blender. In one or more embodiments, the methods of recirculating silica dust to mitigate the release of silica dust includes conveying sand proppant on a conveyor from the one or more proppant silos to a blender hopper, directing sand proppant from the conveyor into the blender hopper, supplying compressed air to one or more amplifiers, directing sand proppant from the blender hopper to a blender via an augur, and adjusting the extent of at least one of the two or more leg segments and the leg adjustment arrangement.

A nanobubble-infused liquid is mixed into a dry concrete mix to form an infused wet concrete, where the nanobubble-infused liquid includes a concentration of nanobubbles of a gas at least double a natural concentration of nanobubbles of the gas within a natural state of the liquid. The nanobubble-infused liquid is preferably liquid water infused with a desired concentration of carbon-dioxide (CO.sub.2) nanobubbles sized within a certain prescribed range. The infused wet concrete is then transported to the mold of a concrete products forming machine to form a molded product that has enhanced qualities including increased carbon capture within the resulting concrete product, improved curing times, increased flowability, self-healing, and improved release from the product mold.