Embodiments of the present disclosure involve methods, devices, and systems for hydrating polymers using multiple mixing chambers. Adjacent mixing chambers may be coupled using an under-over baffle, and each mixing chamber may be generally rectangular with rounded corners.

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 device to be installed in a pipeline, characterized by at least one static mixer and at least one pre-mixer arranged in a sleeve, wherein said at least one static mixer is characterized by: a body having a plurality of slots through the body, said slots having one or more sides that are angled with respect to an axis passing through a center of the body; a plurality of arms extending from an outer edge of the body towards a center of the body, wherein the plurality of slots comprising at least one concentric ring of slots.

An exhaust aftertreatment system for use with over-the-road vehicle is disclosed. The exhaust aftertreatment system includes a reducing agent mixer with a mixing can and a flash-boil doser configured to inject heated and pressurized reducing agent into the mixing can for distribution throughout exhaust gases passed through the mixing can.

A single stage clarifier and mixing assembly includes a housing, a mixing section within the housing and a clarifier section within the housing. The mixing section includes a mixing chamber having (a) an inlet, adapted for delivering an inlet stream to the mixing chamber, at an upper end, and (b) a mixing section outlet at a lower end. The clarifier section extends concentrically around the mixing section. The single stage clarifier and mixing assembly also includes an agitator adapted for mixing the inlet stream in the mixing chamber.

A single stage clarifier mixing assembly includes a housing having a circular sidewall and a center axis, a mixing section in the housing, a clarifier section overlying and axially aligned with the mixing section along the center axis within the housing, an inlet delivering an inlet stream to the mixing section and an agitator. The agitator is adapted for mixing the inlet stream in the mixing chamber.

A system and process for removing solids from raw, untreated liquid that combines mechanical techniques, such as via shakers, hydrocyclones and/or centrifuges, with an additive technique for removal of smaller solids. The additive is selected according to the application. In drilling mud applications, preferred additive embodiments are polyaluminum chloride or polyacrylamide flocculants. Preferably, liquid additive precursors are pre-mixed separately and are then blended before injection into the solids removal process. Some embodiments provide an externally-actuated rack and pinion mud screen lock for simplified screen lockdown on shakers. Some embodiments provide a separate preliminary processing and feed system for pretreatment of the raw, untreated liquid.

Disclosed is a method and a device for purification and desulfurization of liquid hydrocarbons, which, compared to sodium dispersion desulfurizing processes like already been disclosed, open up additional fields of application and greatly improves economy and achievable results.

Multi-component fluid mixing devices and methods of manufacturing and using such multi-component fluid mixing devices are provided. The multi-component fluid mixing devices include one or both of a serpentine flow path and an attachment point decoupled from an inlet of the multi-component fluid mixing devices. The method of use includes switching between multi-component fluid mixing devices with different length flow paths, while retaining a constant position of the outlet of the multi-component fluid mixing devices. A manufacturing method includes fusing two halves of a multi-component fluid mixing device together with mixing elements in a serpentine flow path captured in a mixer wall formed between the two halves of the multi-component fluid mixing device.

An extrusion equipment adapted for supercritical foaming and mixing of a raw material includes a mixing unit, an injection unit for injection of supercritical fluid into the mixing unit, and an extrusion unit for extrusion of the raw material. The mixing unit includes a tube for input of the raw material, and a propelling screw rod and an auxiliary screw rod that are disposed side by side in the tube and that cooperatively compress and propel the raw material. The auxiliary screw rod rotates at a speed at least twice that of the propelling screw rod and in a direction opposite to that of the propelling screw rod.