Abstract:
The present invention discloses a method for self-cleaning filters without having to open the filter housing. Wash nozzles are integrated with the filter housings such that when the filters are clogged, both back-wash and regular washing can be performed with practically no down time. Moreover, without opening the filter housing, the hazardous components of the fluid to be filtered can be contained and dealt with before they escape the filter housing, thereby significantly reduces the environmental impact and harm to the working crew.
Abstract:
A laundry treating machine is provided. The laundry treating machine may include a tub to receive wash water, a drum rotatably provided in the tub, an air supply device to supply air to the tub, a lint filter to filter lint from the air circulated by the air supply device, a filter cleaning device to supply cleaning water to the lint filter to remove the lint from the lint filter, and a cooling water supply device to supply cooling water to an inner surface of the tub such that moisture contained in air is condensed at the inner surface of the tub.
Abstract:
The invention relates to a method for washing a filter (F) having at least two layers of filtering media (4, 5) for raw water containing components having a tendency to form cakes (M), in particular for seawater, the layers of filtering media being supported by a base (6) comprising pass-through openings and provided with nozzles (6a) enabling air and/or wash water to be injected, the raw water flowing through the layers from top to bottom and the treated water being recovered at the lower portion of the filter, and which comprises at least one spillway (D) at the upper portion thereof for collecting the wash water. The method includes the following series of steps: a) the raw water intake (2) is closed, followed by the filtration outlet valve (13), the filter is depressurized, and the filter cake is broken; b) the water level in the filter is lowered; c) only pressurized air is blown into the lower portion of the filter, said air passing through the layers of the filter from bottom to top and causing the cakes to be reduced to particles, in particular by means of friction; d) rinsing is carried out from bottom to top using only water, the water rinsing time being sufficiently short to ensure that the water level stops below the level of the upper edge of the wash water collection spillway; e) the filter water is emptied once again by discharging same from the lower portion of the filter; f) steps c), d) and e) are repeated at least once, and a final rinsing is carried out by injecting a quantity of backwashing water through the bottom portion of the filter, which is then discharged from the upper portion of the filter via a pipe (14).
Abstract:
A laundry treating machine is provided. The laundry treating machine may include a tub to receive wash water, a drum rotatably provided in the tub, an air supply device to supply air to the tub, a lint filter to filter lint from the air circulated by the air supply device, a filter cleaning device to supply cleaning water to the lint filter to remove the lint from the lint filter, and a cooling water supply device to supply cooling water to an inner surface of the tub such that moisture contained in air is condensed at the inner surface of the tub. A laundry treating machine (100) is provided. The laundry treating machine (100) may include a tub (120) to receive wash water, a drum (130) rotatably provided in the tub (120), an air supply device (160) to supply air to the tub (120), a lint filter (162) to filter lint from the air circulated by the air supply device (160), a filter cleaning device (200) to supply cleaning water to the lint filter (162) to remove the lint from the lint filter (162), and a cooling water supply device (300) to supply cooling water to an inner surface of the tub (120) such that moisture contained in air is condensed at the inner surface of the tub (120).
Abstract:
A laundry treating machine is provided. The laundry treating machine may include a tub to receive wash water, a drum rotatably provided in the tub, an air supply device to supply air to the tub, a lint filter to filter lint from the air circulated by the air supply device, a filter cleaning device to supply cleaning water to the lint filter to remove the lint from the lint filter, and a cooling water supply device to supply cooling water to an inner surface of the tub such that moisture contained in air is condensed at the inner surface of the tub.
Abstract:
The present invention discloses a system and method for self-cleaning filters without having to open the filter housing. Wash nozzles are integrated with the filter housings such that when the filters are clogged, both back-wash and regular washing can be performed with practically no down time. Moreover, without opening the filter housing, the hazardous components of the fluid to be filtered can be contained and dealt with before they escape the filter housing, thereby significantly reduces the environmental impact and harm to the working crew.
Abstract:
Procédé de lavage d'un filtre (F) ayant au moins deux couches de médias filtrants (4, 5) pour une eau brute contenant des composants ayant tendance à former des galettes (M), notamment pour une eau de mer, les couches de médias filtrants étant supportées par un plancher (6) comportant des orifices de passage et muni de buses (6a) permettant une injection d'air et/ou d'eau de lavage, l'eau brute s'écoulant de haut en bas à travers les couches et l'eau traitée étant récupérée en partie basse du filtre, lequel comporte en partie haute au moins un déversoir (D) pour la collecte de l'eau de lavage, procédé selon lequel les étapes successives suivantes sont effectuées : a/ on ferme l'arrivée d'eau brute (2), puis la vanne de sortie filtration (13), on assure une dépressurisation du filtre, et on casse le gâteau de filtration; b/ on abaisse le plan d'eau dans le filtre; c/ on insuffle de l'air seul sous pression en partie basse du filtre, cet air traversant de bas en haut les couches du filtre et provoquant, en particulier par friction, la réduction des galettes en particules; d/ on effectue un rinçage à l'eau seule, de bas en haut, le temps de rinçage à l'eau étant suffisamment court pour que le plan d'eau s'arrête au-dessous du niveau du bord supérieur du déversoir de collecte d'eau de lavage; e/ on vide à nouveau l'eau du filtre par une évacuation en partie basse; f/ on répète au moins une fois les étapes c/, d/ et e/, et on procède à un rinçage final en faisant passer une quantité d'eau de rétro-lavage injectée en partie basse du filtre et évacuée de la partie haute du filtre par une conduite (14).
Abstract:
There is described is a belt cleaning blow-off device having a streamlined inner surface. In one embodiment a fluid outlet nozzle is connectable to a conduit of a blow-off device for cleaning a belt filter. The nozzle comprises a housing having an inner surface and outer surface, wherein the inner surface defines a fluid entry zone to receive fluid into the nozzle and an elongated gap for directing fluid towards the belt. The inner surface is streamlined to facilitate flow of the fluid into the gap. In a second embodiment, the blow-off device comprises a housing connectable to a fluid source and having an inner and outer surface. The housing defines a conduit for transporting the fluid within a channel, wherein the inner surface defines a surface of the channel and an elongated gap for directing the fluid towards the belt. The inner surface is streamlined and typically teardrop-shaped to facilitate flow of the fluid into the gap.
Abstract:
The present invention discloses a system and method for self-cleaning filters without having to open the filter housing. Wash nozzles are integrated with the filter housings such that when the filters are clogged, both back-wash and regular washing can be performed with practically no down time. Moreover, without opening the filter housing, the hazardous components of the fluid to be filtered can be contained and dealt with before they escape the filter housing, thereby significantly reduces the environmental impact and harm to the working crew.