The application discloses a mixed-spray firefighting device, which includes a water nozzle and a powder nozzle. The water nozzle is disposed around an outside of the powder nozzle, and a powder spray port of the powder nozzle is provided behind a water spray port of the water nozzle. A fire-extinguishing agent powder sprayed from the powder nozzle and a water flow sprayed from the water nozzle are mixed in air outside the firefighting device. The fire-extinguishing agent powder is preferably sodium polyacrylate resin powder. The application solves the technical bottleneck of using the sodium polyacrylate resin powder as a fire-extinguishing agent in the prior art, so that the sodium polyacrylate resin powder can be sprayed into a fire field smoothly and continuously without blocking the powder spray port.

The invention relates to a device for incorporation of dust-explosive pulverulent materials into readily inflammable liquids, wherein the device includes the following: at least one liquid circuit (10), wherein the liquid circuit comprises at least one liquid vessel (11), a pipeline system (12), and at least one pump (13), and wherein the liquid circuit is designed to accommodate a combustible liquid; at least one powder vessel (30) designed to accommodate at least one pulverulent material (31) to be incorporated into the liquid, and wherein the powder vessel is connected to the liquid circuit, especially to the pipeline system, in a fluid-conducting manner via a powder feed conduit (32).

A continuous flow reactor without any moving parts to facilitate solid-liquid reaction without clogging is disclosed herein. It comprises plurality of identical cavities in series/sequence, each cavity being provided with: a pair of inlets at the top to allow entry of reactants into the reactor; an outlet at the bottom to allow the reactants to the next cavity for mixing; and a jacket covering around the cavities to provide heating or cooling effect as per the requirement. The outlet of the previous cavity is inclined at a suitable angle relative to the outlet of the next cavity to prevent clogging and facilitate efficient mixing of the reactants.

A baby formula mixing assembly includes a housing and a control circuit that is coupled to the housing. A liquid reservoir is positioned within the housing to contain the liquid. A formula reservoir is positioned within the housing to contain baby formula. A mixing chute is positioned within the housing to receive a selected amount of baby formula and a selected amount of liquid for mixing together. A pump is positioned within the housing to pump the mixture of baby formula and liquid. A dispensing unit is movably coupled to the housing and the dispensing unit is in fluid communication with the pump. A carousel is rotatably coupled to the housing for sequentially rotating baby bottles to align each of the baby bottles with the dispensing unit to fill the baby bottles with the mixture of formula and liquid.

A device and method for preparing a sample for solid-liquid or liquid-liquid extraction are provided. In one embodiment, a device includes a sealed container including an opening for receiving a solid sample and a reservoir. The reservoir includes a solvent or is adapted to receive a solvent. The solid sample and the solvent are mixed in the reservoir and to concentrate at least one component of the sample into the solvent within the reservoir. The concentrate is settled into a solvent layer within the container. The solvent layer is sampled via a port. A method includes introducing a solid sample to a solvent; creating a solution by mixing the solid sample with the solvent; allowing the solvent solution to settle into at least one layer; and sampling within at least one layer.

Device 1 for mixing the contents of a tank 10 comprising a first pipe connecting body 20 arranged on a connecting flange 14 of a tank 10; a riser pipe 40 extending through the first pipe connecting body 20 into the tank; a mixing pipe 50 extending through said first pipe connecting body 20 into said tank; and a pump 60 whose outlet 64 can be connected at least to the mixing pipe 50 and whose inlet 62 can be connected both to the first pipe connecting body 20 and to the riser pipe 40. Further a method for mixing the contents of a tank is claimed.

A gel production system and method, in which a powder configured for mixing with an aqueous solvent such as water to form a gel is metered into a pressurized air stream to fluidize the powder, and the fluidized powder is injected into a pressurized water supply. The fluidized powder is at a greater pressure than the water supply, helping to hydrate the fluidized powder in the water, and the water supply plus fluidized powder are subsequently mixed in a mixing chamber to form the gel.

A method and system for forming a liquid mixture utilizes a mixing tank with a tank inlet oriented and configured to create a swirling liquid flow that forms a vortex within the tank. A portion of the swirling liquid is discharged through an outlet formed by an opening in a lower wall of the tank. At least a portion of the opening is offset to one side of a central axis of the lower wall. Liquid is circulated and reintroduced into the tank inlet. A material to be mixed is introduced into the swirling liquid flow within the tank interior to form a liquid mixture.

Systems for managing abrasive media in cavitated fluid include a set of sensors in communication with cavitated fluid in a processing tank and a processor coupled to the set of sensors. The processor is configured to determine a density of an abrasive media in the cavitated fluid in the processing tank and facilitate maintaining the density of abrasive media in the cavitated fluid in the processing tank at a level that is greater than or equal to a threshold level of abrasive media. The processor is further configured to command the abrasive media addition device to add the recycled abrasive media to the processing tank to increase the density of abrasive media in the cavitated fluid in response to determining that an average density of abrasive media is less than the threshold density of abrasive media.

A multi-module system for applying a refractory monolithic onto an object includes a power module and a placement module, separated and distinct from the power module. The power module includes a hydraulic pump and a prime mover drivably coupled to the hydraulic pump. The placement module includes a mixer for receiving a dry refractory material and a liquid, the mixer operative to mix the dry refractory material and liquid to produce a wet monolithic, and a pump coupled to the mixer and configured to move the wet monolithic out of the mixer. A hydraulic conduit is couplable between the hydraulic pump and at least one of the mixer or the pump, whereby the at least one of the mixer or the pump is driven by hydraulic power produced by the hydraulic pump.