Provided are a refractory article, an anti-redox coating composition, and a method of manufacturing the refractory article. The refractory article includes: a platinum (Pt)-based substrate; and a coating layer for preventing a redox reaction on a surface of the Pt-based substrate, wherein the coating layer for preventing a redox reaction includes on an oxide basis SiO.sub.2 in an amount of about 40 wt % to about 70 wt %, Al.sub.2O.sub.3 in an amount of about 20 wt % to about 52 wt %, B.sub.2O.sub.3 in an amount of about 3 wt % to about 6 wt %; and CaO in an amount of about 2.4 wt % to about 4.8 wt %.

The present invention relates to a mixing vessel (10) for mixing liquid or fluid filling goods, with a cylindrical vessel wall (12) and a disc-shaped lower vessel bottom (14).

For producing said mixing vessel (10) in an inexpensive way and for enabling its quick preparation for reuse, it is provided according to the invention that the mixing vessel (10) comprises at least four individual, detachably connected vessel components, namely a cylindrical vessel wall (12), a disc-shaped lower vessel bottom (14), a liner bag (16) made of thin-walled synthetic foil which is inserted into said vessel wall, and a clamping ring (18) which connects the disc-shaped lower vessel bottom (14) with the vessel wall (12), whereby said inserted liner bag (16) comprises a cylindrical liner wall (20) and a disc-shaped liner bottom (22), and whereby said liner bag (16) is firmly affixed in the lower area of the cylindrical vessel wall (12) or/and of the disc-shaped lower vessel bottom (14).

A bucket lid assembly for mixing contents of a closed bucket includes a lid that has flat portion and a channel portion is integrated into the flat portion. The channel portion releasably engages a bucket for closing the bucket. The flat portion is comprised of a translucent material to facilitate contents of the bucket to be visible through the lid. The lid has a mixer opening extending therethrough such that a mixing wand is insertable through the mixer opening. In this way the lid facilitates the contents of the bucket to be mixed while the bucket is closed with the lid.

A blender system includes a blender base that is selectively and operably engaged with a container. The blender base may include a housing that houses a motor operatively driving a mixing blade, and a fan. The fan may operate independent of the motor. The fan may force air through the blender base to cool the motor and other operative components of the blender base.

A fluid mixing system includes a flexible bag having a first end, an opposing second end, and an interior surface bounding a compartment; a retainer coupled to the second end of the flexible bag, the retainer having a retention cavity formed thereon that communicates with the compartment of the flexible bag; and an elongated member having a first end rotatably coupled to the first end of the flexible bag and an opposing second end freely disposed within the retention cavity of the retainer so that the second end of the elongated member can rotate within the retention cavity relative to the retainer.

A mixing device for mixing a liquid plastics component with a gas, includes a liquid feed, a gas feed, and a discharge opening for discharging the mixture generated in the mixing device. Each of the liquid feed, gas feed, and discharge opening is connected to a mixing chamber in which a rotatable agitator device is arranged. A shaft for driving the agitator device projects out of the mixing chamber, and the mixing chamber is sealed off, in the region of the shaft, by a seal. On that side of the seal which is averted from the mixing chamber, there is a reservoir which is connected to the liquid feed and which is connected by a passage to the mixing chamber.

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.

Embodiments of the present invention include a blending system that delivers granular material directly from designated storage containers into a blender based on the liquid flow rate into the blender and the blender slurry flow rate exiting the blender. The blending system utilizes a blender controller system in communication with a blender slurry flow meter, a blender liquid flow meter, a conveyor load cell, a conveyor motor, and a conveyor speed sensor, wherein the blender control system is configured to regulate the amount of granular material entering the hopper based on the entrance rate of liquid into the blender and the exit rate of the fracturing fluid slurry from the blender.

A mixing machine includes a mixing head and at least one connection means for connecting a mixing container containing material to be mixed to said mixing head for forming a closed mixing container. The mixing head, as part of a pivotable assembly, is pivotably mounted with respect to a frame such that the closed mixing container formed from the mixing head and the mixing container can be pivoted relative to the frame for performing the mixing process. The mixing head carries at least one rotationally-driven mixing tool. The mixing head comprises a head plate having a connecting flange molded thereon which is configured as an annular disc and comprises a planar contact surface. At least two ring seals of differing diameters are arranged in said contact surface of the connecting flange at a spacing between each other, such that mixing containers with different connection diameters of their mixing head side can be connected to said mixing head. The at least one connection means is configured for gripping mixing containers which differ in the diameter of their connection sides.

A system includes a recirculation line, a mainline flow meter operable to measure a flowrate of fluid flowing through the recirculation line, a mixing chamber, an inlet line coupled between the recirculation line and the mixing chamber, at least one chemical injection port coupled to the inlet line, a dedicated feed pump operably associated with each chemical injection port, and an outlet line coupled between the mixing chamber and the recirculation line. The mixing chamber includes a plurality of mixing zones, a mixing blade assembly that includes at least one blade within each mixing zone, and a motor coupled to the mixing blade assembly and operable to rotate the mixing blade assembly. Each of the dedicated feed pumps is coupled to a separate chemical supply and is operable to pump a chemical to the corresponding chemical injection port for injection into the inlet line.