A method produces an acrylic fiber bundle that are cleaned in one or more washing baths including an inflow portion and an outflow portion for a cleaning solution; at least one of the washing baths is a counterflow washing bath in which the cleaning solution flows into from the inflow portion located at a lower stream side position of a traveling direction of coagulated thread bundles, and flows out from the outflow portion located at an upper stream side position of the traveling direction of the coagulated thread bundles; and an average of coefficients of variation CV of linear speeds of the cleaning solution in the inflow portion of the counterflow washing bath is 0.30 or less, and an average of coefficients of variation CV of linear speeds of the cleaning solution in the outflow portion of the counterflow washing bath is 0.30 or less.

An apparatus for cleaning crustacea or game has a container with an interior volume defined by a wall, a fluid inlet extending into the interior volume of the container, and a plurality of nozzles connected to the fluid inlet. The plurality of nozzles are directed in different directions. The plurality of nozzles are positioned adjacent to the wall of the container so as to direct the fluid from the fluid inlet toward another portion of the wall of the container. The fluid inlet is adapted to pass a fluid under pressure into the interior volume of the container. The plurality of nozzles are arranged one above another.

An apparatus for cleaning game, fruit, vegetables, fish, or crustacea in a container has a pipe and a connector connected to the pipe adjacent one end of the pipe. The pipe has a plurality of apertures formed in spaced relation to each other along a length of the pipe. The pipe is adapted to extend generally vertical within the container. The plurality of apertures are adapted to direct a flow of water in a generally cyclonic path in the container. The connector is adapted to introduce water into and through the pipe from a water hose or a conduit. A fastener is affixed to the pipe or the connector so as to removably affix the pipe to the a container. A spacer is affixed to the pipe so as to position the pipe a distance away from a wall of the container.

A mop cleaning system has a mop basin having a floor and a drain, a chamber affixed to the mop basin in a location away from the drain, a water inlet opening within the interior volume of the chamber, and a water source connected to the water inlet. The water inlet is adapted to pass water in an area adjacent to a bottom of the chamber. The water source is adapted to pass water under pressure into the water inlet. The chamber is fixedly mounted to the floor of the mop basin. The chamber has an outlet located at above the water inlet.

A hot-water immersion sanitizing system has a primary basin for receiving an unsanitary tool or machine component; a thermostatically-controlled valve with a first temperature setpoint, configured to conduct water from a hot water water source to the primary basin until a thermocouple senses a temperature within the primary basin has reached at least the first temperature setpoint, to interrupt flow to the primary basin upon the thermocouple sensing at least the first temperature setpoint; and an overflow drain to exhaust water while the thermostatically-controlled valve is open; thereby automatically maintaining temperature of water held in the primary basin for immersion sanitizing tools and parts at a water temperature of the first temperature setpoint or greater while automatically selectively interrupting flow of water from the water source under thermostatic control.

A substrate processing apparatus includes: a processing tank that stores a processing liquid for performing a liquid processing on a plurality of substrates; a substrate support that supports the plurality of substrates such that main surfaces of each of the plurality of substrates follow a vertical direction in the processing tank; a processing liquid ejection unit provided below the plurality of substrates supported by the substrate support, and generates an ascending flow of the processing liquid in the processing tank; and a rectifying section that adjusts flow of the processing liquid in a side space formed between a first side wall of the processing tank and a first substrate having a main surface facing the first side wall of the processing tank among the plurality of substrates.

This method for cleaning wires enables effective descaling and removal of smuts from wires, prevents yellowing after cleaning, and significantly reduces the amount of water discharged as a result of cleaning, said method including, in the stated order: (A) pickling a wire; (B) cleaning the wire with acidic pressurized water, the concentration of which is adjusted with water and collected pickle solution which has adhered to and been recovered by the wire after use in Step (A); and (C) cleaning the wire with water.

A substrate processing apparatus includes a guard that catches liquid scattered outward from a spin chuck, a cup defining a liquid receiving groove to catch liquid that is guided downward by the guard, a guard elevating/lowering unit that moves the guard in an up/down direction, a cleaning liquid supplying unit that supplies cleaning liquid, discharged from a cleaning liquid nozzle, to the liquid receiving groove via the spin chuck and the guard, a cleaning liquid draining unit that drains the cleaning liquid in the liquid receiving groove, and a controller that controls the cleaning liquid supplying unit and the cleaning liquid draining unit to accumulate cleaning liquid in the liquid receiving groove and controls the guard elevating/lowering unit to cause a lower end portion of the cylindrical portion to be immersed in the cleaning liquid in the liquid receiving groove.

A system for and method of improving fluid flow is provided. The system includes a discharge manifold defining a primary flow path partially obstructed by one or more flow diverter. The flow diverter includes an obtrusion pair, each obtrusion of the obtrusion pair extending from a rear wall of the discharge manifold into an interior area of the discharge manifold, thereby creating a void along the primary flow path. The system further includes a first nozzle extending through the primary flow path and into the void such that a nozzle inlet of the first nozzle is positioned at least partially within the void. The system further includes a plurality of subsequent nozzles, each of the first and subsequent nozzles defining a respective secondary flow path for directing fluid away from the discharge manifold. The method includes utilizing obtrusion pairs to reduce or eliminate hydraulic skip.

A substrate processing method includes forming a high surface tension liquid film by supplying high surface tension liquid on a substrate surface, replacing the high surface tension liquid film with low surface tension liquid by supplying the low surface tension liquid to a center area of a substrate so that the low surface tension liquid impinges on the high surface tension liquid film formed on the center area of the substrate, and supplying high surface tension liquid for a predetermined period of time during the supplying the low surface tension liquid.