摘要:
In accordance with one embodiment, a method is provided that includes providing a liquid nitrogen storage system configured to cool a supply of liquid nitrogen to a temperature below the vapor point of liquid nitrogen; coupling a piping system with the liquid nitrogen storage system to convey a portion of the supply of liquid nitrogen from the liquid nitrogen storage system; coupling the piping system with a liquid nitrogen control valve configured to control a flow of liquid nitrogen to at least one liquid nitrogen dispensing head; disposing the at least one liquid nitrogen dispensing head above a conveyance device operable to convey an aggregate stream of a concrete batching plant during use; and disposing the at least one liquid nitrogen dispensing head in a position to dispense an output flow of liquid nitrogen onto the aggregate stream of the concrete batching plant during use.
摘要:
A fluid heating system includes a tank assembly having an interior surface bounding a chamber, the tank assembly including a sidewall encircling the chamber and extending between a first end and an opposing second end, the first end bounding an opening to the chamber, and a lid movable between a first position wherein the opening to the chamber is exposed and a second position wherein the lid is disposed over the opening. A collapsible bag is removably disposed within the chamber of the tank assembly, the collapsible bag bounding a compartment adapted to hold a fluid. A mechanism is provided for controlling the temperature of fluid within the collapsible bag when the collapsible bag is positioned within chamber of the tank assembly.
摘要:
Method and device for preparing a paste by blending or mixing materials, in particular for making aluminum production electrodes. The method includes the following operations: a) introducing the materials to be blended or mixed into a vat (31) having an inner surface extending along a substantially horizontal axis of revolution (X), b) rotating the vat (31) about the axis of revolution (X) and urging the materials via centrifugation against the inner surface of the vat (31), and c) locally dislodging the centrifuged materials from the inner surface by rotating the vat (31) and causing same to fall onto a crumbling tool (40).
摘要:
A method for inactivating a fluid culture includes inserting a collapsible bag within a chamber of a tank assembly. A fluid is dispensed into a compartment of the collapsible bag, the fluid including a culture containing live cells or microorganisms. A lid is positioned over an opening of the tank assembly so that the collapsible bag is substantially enclosed within the tank assembly. The fluid within the collapsible bag is heated to an inactivation temperature that is sufficiently high to kill all of the live cells or microorganisms within the fluid. In one embodiment, the fluid within the flexible bag is mixed while the fluid is being heated to the inactivation temperature.
摘要:
There are disclosed a regenerated rubber, a method and apparatus for obtaining regenerated rubbers from vulcanized crumb rubber, such as rubber from scrap. The apparatus is a thermokinetic mixer having the particularity to have an air tight stationary chamber with inner non-uniform surface. The method comprises the steps of raising the speed of the rotor shaft in order to increase a temperature of a mixture made of vulcanized crumb rubber and a lubricant, such as oil, until a devulcanizing temperature is reached; and reducing the temperature of the mixture to a lower temperature during a second period of time. The method of the invention is environmentally friendly or “green”, since the regeneration method does not use chemicals, includes a shorter period of treatment at higher temperature avoiding the risks of rubber cracking and spontaneous combustion, and further allowing mass-production of regenerated rubber with lower energy consumption.
摘要:
Apparatus and methods are provided for converting methane in a feed stream to acetylene. A hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream may be treated to convert acetylene to another hydrocarbon process.
摘要:
A device for accelerating mixing and dissolving processes of liquid water and powder. The device includes a main body formed in a bottle cap shape including a top surface and a side periphery surface, and a shaft disposed at a center of an upper portion of the main body in such a manner as to be inserted into a shaft insertion groove formed at a center of an impeller. The top surface of the main body has two or more introducing portions to introduce the liquid water and the powder into the device, and the side periphery surface of the main body has two or more discharging portions to discharge the liquid water and the powder introduced into the device through the two or more introducing portions to the outside of the device.
摘要:
A method and apparatus for cooling a mixture with an injection system. The injection system is adjustable to accommodate the relative position and particular specifications of a given container (e.g., concrete mixer). In one embodiment, the injection system is operable to inject a coolant directly into the mixture while in the mixing process.
摘要:
The invention relates to a device for the partial crystallization of a phase in a solution, comprising at least one pump for circulation of the solution in a circuit of a heat exchanger formed from at least one tube in contact with a cooling circuit, characterized in that the circuit of the exchanger includes static means to mix the solution, so that the crystallized particles of the phase are continuously mixed with the solution during the circulation of said solution. The invention also relates to an assembly including several devices according to the invention or several parts of such a device. The invention also relates to a method to use such a device.
摘要:
An apparatus and method are disclosed for carbonation of liquids, such as beverages like cocktails. The apparatus includes a transparent container having a small opening and a twist-lock large opening. The small opening includes a self-sealing one-way valve to introduce a gas, such as CO2, into the container. The large opening is used to load the liquid and solid ingredients, such as ice and fruit chunks. The large opening includes an O-ring to self-seal the container upon pressurization by the gas. A light port at the bottom of the container may be provided through which a light may be shone for visual effects. In operation, the user fills the container through the large opening with ice and fruit chunks, and twists the large opening shut. The user then injects CO2 through the valve and shakes the container to produce high-quality highly carbonated cocktails that sparkle much like Champagne.