Vessels can be become fouled due to normal operation thereof, for example, during lignocellulosic biomass hydrolysis, and the vessel will become inoperable unless the fouling is removed from the vessel. Accordingly, methods are disclosed herein for removing fouling substances from the interior surfaces of fouled pressurized vessels. The methods utilize a brief rapid change of pressure in the vessel. In some embodiments, the rapid pressure change is a decrease, and the rapid pressure change causes, for example, increased velocity of the fluid flowing in the vessel, flashing of a portion of the fluid to vapor, and removal of the fouling substance adhered to the interior surface of the vessel.

Cleaning fixtures for a component(s) are disclosed. The cleaning fixtures may include a first and second component recess configured to receive a first and second component, respectively. Each component recess may be defined between a first and second member of the cleaning fixture. The cleaning fixture may also include a first solvent conduit in fluid communication with the first component recess, and a second solvent conduit in fluid communication with the second component recess. The first and second solvent conduit may include physical characteristic(s) configured to control delivery of solvent into the respective component recess at desired fluid parameter(s). The cleaning fixture may also include a first gas conduit in fluid communication with the first component recess, and a second gas conduit in fluid communication with the second component recess. Each of the first and second gas conduit may deliver a pressurized gas to the respective component recess.

A method is provided for cleansing a hot beverage dispensing device (1), the device including at least one water inlet (11), a hot beverage preparation module (2) located downstream of the water inlet, and a beverage outlet (26) downstream of the beverage preparation module, a second rinsing step (S2) The method includes a first rinsing step (S1), a second rinsing step (S3). In the first rinsing step at least part of the beverage preparation module and the beverage outlet are rinsed with a rinsing fluid having a first rinsing fluid temperature. In the treatment step (S2) at least part of the beverage preparation module and the beverage outlet are treated with a treatment fluid, the treatment fluid having a temperature that is higher than the first rinsing fluid temperature. In the second rinsing step (S3) at least part of the beverage preparation module and the beverage outlet are rinsed with a rinsing fluid having a second rinsing fluid temperature.

A cleaning apparatus for use with a water source, the cleaning apparatus including a handheld cleaning device that includes a transducer therein that is capable of stimulating water located inside a body of the handheld cleaning device, such that bubbles created by the excitation of the water via the transducer can be used to provide a cleaning effect, for example to clean the surface of a soiled object by way of bubbles bursting at, on or near the surface of the object.

An underwater cavitation jet cleaning system provided with an automatic metering feeder for cleaning solution organically integrates a cavitation jet technology with the improvement of cleaning solutions, which can not only increase bubbles can be during jet, but also is beneficial for removing hull dirt. An eddy segment of a nozzle is arranged as a spiral passage, and the eddy segment is gradually reduced from a water inlet to a water outlet, so that a speed of fluid becomes further faster. A volume of an in-pipe chamber of a barrel is different, and the fluid is pulsed while flowing through the barrel, so that the fluid is finally ejected from the nozzle of a cleaning gun, which efficiently improves the cavitation rate, and increases the generation of cavitation nucleus.

Disclosed herein a workpiece, a workpiece processing method and a workpiece processing system. To achieve hermetic sealing in a workpiece, it is often desirable to remove contaminants from channels and to seal up the channels. The workpiece processing method comprising applying a low surface energy solution on a surface of the workpiece, the low surface energy solution includes a carrier solvent and a filler material dissolved in the carrier solvent; allowing the low surface energy solution to impregnate into a channel in the workpiece; removing the solvent from the low surface energy solution to remain the filler material in the channel to hermetically seal the channel.

A process for support material removal for 3D printed parts wherein the part is placed in a media filled tank and support removal is optimized in a multi-parameter system through an artificial intelligence process which may include, but is not limited to, the use of historical data, parametric testing data, normal support removal data, and outputs from other support removal AI models to generate optimally efficient use of each parameter in terms of pulse repetition interval (PRI) and cycle time as defined by pulse width (PW). The input parameters may include heat, circulation, ultrasound and chemical reaction, which are used in sequence and/or in parallel, to optimize efficiency of support removal. Sequentially and/or in parallel, heat, pump circulation and ultrasound may vary in application or intensity. Selection of means of agitation depends on monitored feedback from the support removal tank and application of a statistically dynamic rule based system (SDRBS).

Systems and methods for washing and thawing objects, such as vegetables and fruits, where large amounts of lifting of heavy items is minimized, complex and expensive pumping and manifold systems and structures are not required; and system cost and daily maintenance is reduced. The system includes a structure for holding a volume of fluid, a vertical motion structure driven by an electric motor or the like that raises and lowers a basket carrier between an elevated position and a lowered position. In the lowered position, one or more baskets are positioned on a basket carrier and are repeatedly lowered into and raised from the volume of fluid.

The invention is generally a system for drying, recycling, and washing off residual resin from three-dimensionally (3D) printed objects. Exemplary systems may include a wash reservoir, a fan module, and one or more air exchange vents. The wash reservoir contains a wash solvent and a propeller fully or partially submerged into the wash solvent. The propeller splashes the wash solvent upwards to disperse on the 3D printed object, thereby largely washing away the resin residue present in the 3D printer object. The fan module is connected to the wash reservoir to create a positive or negative air pressure inside the wash reservoir, thereby redirecting the airflow to the wash reservoir. The air exchange vents are provided between a splash guard and a platform/lid of the wash reservoir to act as an air intake when the fan module blows air out of the wash reservoir and as an exhaust vice versa.

The present disclosure provides systems and methods for automating the cleaning and sanitizing processes of a food dispensing machine. The systems and methods may be set to run automatically and may keep a dispensing system cleaned and sanitized for an extended time. The systems and methods disclosed are designed to make cleaning easier for the operator, shorten the overall cleaning time, reduce the amount of labor involved, and improve the convenience, reliability, and repeatability of the cleaning processes.