With respect to an especially efficient use of energy required for drying, a drier for drying items to be dried, comprising a receptacle for the items to be dried, an air guide for guiding air to the receptacle and a heating device for heating the air is designed and further developed in such a way that the receptacle comprises a plurality of modules (1, 2, 3, 4), arranged one behind the other, for heating, drying or cooling the items to be dried, and that at least one module (1, 2, 3, 4) is associated with a conveying device (5) for conveying the items to be dried from this module (1, 2, 3) or any module (1, 2, 3) to the next module (2, 3, 4).

A laundry machine includes first and second washing units including first and second tubs, respectively. First and second drums are mounted inside the first and second tubs, and first and second drive units drive rotations of the first and second drums around first and second rotational shafts, respectively. The second washing unit is arranged above the first washing unit and has a smaller laundry treating capacity than the first washing unit. The first rotational shaft is not parallel to the second rotational shaft. A first recess projects downward from a rear lower surface of the second tub and is configured to heat wash water in the second tub. A metal plate member is provided on an outside lower surface of the second tub, and partially extends to the rear of the second tub to expose a bottom surface of the first recess.

The present disclosure discloses a control method of a multi-drum washing machine. The control method includes setting an oscillating program in the multi-drum washing machine. The oscillating program is a program in which oscillation generated by at least one washing device is used as an oscillating source to drive washing water and laundries in another at least one washing device to generate an interaction and achieve a washing effect. When at least one washing device oscillates, another at least one washing device and washing water and laundries in the washing device are driven to oscillate; and the vibration or jumping of the washing water in a drum is used to realize a function of soft washing of laundries and solve the problem of washing damage to soft laundries due to agitating type washing or beating type washing.

A filtration-free liquid sampling system may be used to extract particulate or debris-containing liquid samples that may otherwise plug a filter over its service life. For example, such a system may be used to extract liquid sample from an industrial textile washer to monitor and/or validate the quality of wash conditions within the washer. In some examples, the system includes a pump that creates a vacuum on a backstroke, drawing liquid into a sensor housing positioned between the pump and the washer. After holding the liquid in the sensor housing long enough to measure its properties, the pump can be driven in a reverse stroke to pressurize the contents in the sensor housing and force the liquid back into the washer. This vacuum fill/pressure purge can keep the sensor housing free of debris.

A shell structure of a clothing treating device comprises a rear U-shaped plate, the rear U-shaped plate being bent at two vertical lines to form a left side wall, a right side wall and a rear side wall of a shell, with a cross section being U-shaped. The left side wall and the right side wall are respectively provided with at least one handle part, and the rear U-shaped plate is provided with an air vent communicating with an inside of the shell. As a result, the shell structure of a machine body of the clothing treating device is simplified, the strength is improved, and the assembly efficiency is improved. Also, an air duct arranged in the clothing treating device communicates with the air vent, so that the purpose of exchanging air with the outside through the air vent is realized.

A combination washing and drying apparatus includes a housing defining a singular interior area. A washing assembly positioned in the housing includes a washer drum having a first and second concentric washer sleeves movable between a closed configuration at which a bottom opening defined by the first washer sleeve is blocked by the second washer sleeve and an open configuration in which the bottom opening is not blocked for releasing the clothing from the first washer sleeve. A drying assembly is positioned in the housing and includes a dryer drum having first and second concentrically aligned dryer sleeves defining a side opening and being movable between a closed configuration blocking the side opening and an open configuration allowing the clothing to be inserted into the dryer drum. A conveyor assembly includes a continuous belt operably movable when energized for conveying the clothing between the washing and drying assemblies.

A method of washing fabric articles in a tunnel washer that includes moving the fabric articles from the intake of the washer to the discharge of the washer and through multiple modules or sectors. Liquid can be counter flowed in the washer interior along a flow path that is generally opposite the direction of travel of the fabric articles. A dual use zone includes multiple of the modules or sectors. In a dual use zone, a module or modules can be used to both wash and thereafter rinse the fabric articles. While counterflow rinsing, the flow rate can be maintained at a selected flow rate or flow pressure head. One or more booster pumps can optionally be employed to maintain constant counterflow rinsing flow rate or constant counterflow rinsing pressure head. During rinsing, extracted water or reuse water is first used to rinse followed by a clean water rinse.

A washing system includes a housing, a drain line, and a recirculation line. The housing receives, via a fluid inlet, fresh water during one or more wash cycles of a wash session. The drain line is coupled to the housing and includes a valve and is also configured to receive soiled water from the housing during the wash session. The recirculation line is coupled to and extends from the valve of the drain line and is configured to receive a portion of the soiled water via the valve. The recirculation line includes an integrated fluid sanitizer module configured to at least partially sanitize the portion of the soiled water, and the recirculation line is configured to deliver sanitized water from the integrated fluid sanitizer module to the fluid inlet of the housing.

The present invention relates generally to an effluent treatment device including in one embodiment a skid configuration. The method and apparatus of the present invention can use only two fluid pump units and including individual or multiple membrane modules in a stacked longitudinally arranged configuration. The stacked or in series modules can be either vertical or horizontal forming a column. The membrane modules are contained in large diameter pipes with enough space around each module so that filtered permeate water collects in the pipe and backwash water can flow in the pipe to backwash the modules and contained membranes. The present invention includes one or more hollow fiber ceramic membrane modules which each includes multiple hollow fibers bundled together by end or band caps (e.g., ceramic, epoxy of glass material end caps) to form a complete membrane module. A complete hollow fiber membrane module can comprise multiple symmetric individual hollow fibers between about 2.0 to 4.00 millimeters inside diameter and can be made of aluminium oxide (Al.sub.2O.sub.3) substrate material. The geometry of the individual ceramic fiber walls can be between about 1.0 to 2.0 millimeters in thickness, known as the membrane wall. Such ceramic hollow fibers can have pores including a range of nominal 1 nanometer to 1400 nanometers. The ceramic hollow fibers can comprise selective membranes pores including a range of nominal 1 nanometer to 1400 nanometers which may include individual or multiple separating layers attached to the fiber walls of nominal 1 to 100 nanometers. The separating layers can each be a porous polymeric material. In one embodiment, a skid mounted treatment device is operable to pass water through an individual hollow fiber ceramic membrane module or multiple membrane modules in series known as a membrane loop. Filtration is inside to out flow filtration through the hollow fiber membranes. The apparatus is also operable to pass water through the hollow fiber ceramic filter module or multiple membrane modules in an outside to in flow direction, so as to remove material from the separation layer of the hollow fiber ceramic membrane fibers, a process known as backwashing or back flushing. Contaminant materials (retentate) having been deposited during inside-out filtration of the commercial or industrial laundry effluent is removed with such back flushing.

A method of washing fabric articles in a tunnel washer that includes moving the fabric articles from the intake of the washer to the discharge of the washer and through multiple modules or sectors. Liquid can be counter flowed in the washer interior along a flow path that is generally opposite the direction of travel of the fabric articles. A dual use zone includes multiple of the modules or sectors. In a dual use zone, a module or modules can be used to both wash and thereafter rinse the fabric articles. While counterflow rinsing, the flow rate can be maintained at a selected flow rate or flow pressure head. One or more booster pumps can optionally be employed to maintain constant counterflow rinsing flow rate or constant counterflow rinsing pressure head.