A control mechanism for self-cleaning filtration systems. One embodiment is a controller for a filtration system that comprises a suction scanner and a screening element having modifiable respective locations therebetween. The controller comprises an input terminal for receiving a relative location signal and additional a differential pressure input terminal. The controller monitors differential pressure and outputs an activation signal after the differential pressure has exceeded a threshold value. The controller outputs a termination signal based on the relative location signal. Another embodiment is a filtration system that comprises: a screening element located within a filtration chamber, and a suction scanner for self-cleaning thereof. A location tracker communicates to a switching mechanism during self-cleaning sessions a signal indicative of a location of the suction scanner with respect to the screening element. The switching mechanism automatically terminates self-cleaning sessions based on the signal.

A screening system for solid removal includes a housing and a screen positioned within the housing. A flow inlet is operatively connected to an interior chamber defined by the screen. A sump is downstream from the flow inlet for capturing solids that do not pass through the screen. A flow outlet is downstream from the screen in fluid communication with the flow inlet. A moveable cleaning assembly may be positioned either within a perimeter of the screen, around the perimeter of the screen or both. The moveable cleaning assembly is moveable with respect to the screen.

A control mechanism for self-cleaning filtration systems. One embodiment is a controller for a filtration system that comprises a suction scanner and a screening element having modifiable respective locations therebetween. The controller comprises an input terminal for receiving a relative location signal and additional a differential pressure input terminal. The controller monitors differential pressure and outputs an activation signal after the differential pressure has exceeded a threshold value. The controller outputs a termination signal based on the relative location signal. Another embodiment is a filtration system that comprises: a screening element located within a filtration chamber, and a suction scanner for self-cleaning thereof. A location tracker communicates to a switching mechanism during self-cleaning sessions a signal indicative of a location of the suction scanner with respect to the screening element. The switching mechanism automatically terminates self-cleaning sessions based on the signal.

A filter apparatus is used for at least partially removing dirt from a pressurized liquid flow passing therethrough. The filter apparatus includes a harvesting utility for harvesting electrical energy from the liquid flow, and at least part of the harvested electrical energy can be used for powering a cleaning mechanism of the apparatus that periodically cleans the filter apparatus.

A filter system of the type having a pressure vessel having an annular filter media therein with a filter wiper piston moved by an air or hydraulic piston actuator. An electrically operated drain valve purges wiped contaminants from the filter media. Pressure sensors provide a signal to a controller of vessel inlet and outlet pressure. Position detectors provide signals to the controller of the drain valve position and filter actuation position. The controller has a computer which computes from the sensor inputs parameters representative, in real time, of entry fluid condition, relative amount of filter contamination, relative amount of filter wear, and relative amount of contaminant removal, and provides signals of the representation to indicators providing visual display thereof.

A filter system of the type having a pressure vessel having an annular filter media therein with a filter wiper piston moved by an air or hydraulic piston actuator. An electrically operated drain valve purges wiped contaminants from the filter media. Pressure sensors provide a signal to a controller of vessel inlet and outlet pressure. Position detectors provide signals to the controller of the drain valve position and filter actuation position. The controller has a computer which computes from the sensor inputs parameters representative, in real time, of entry fluid condition, relative amount of filter contamination, relative amount of filter wear, and relative amount of contaminant removal, and provides signals of the representation to indicators providing visual display thereof.

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.

Provided are a filter cloth recovery device and a copper rod continuous casting and rolling manufacturing system using the same. This device includes a cleaning water tank, a winding mechanism and a cleaning mechanism provided on the cleaning water tank. The winding mechanism includes: a winding shaft provided on the cleaning water tank for winding a filter cloth after being cleaned; a first guiding roller for guiding a filter cloth to be cleaned into a cloth-transmitting path within the cleaning water tank; and a second guiding roller between the first guiding roller and the winding shaft along the cloth-transmitting path for providing a tension force to the filter cloth. One end of the winding shaft is connected with a driving mechanism. The cleaning mechanism is provided with multiple liquid spraying openings for spraying a cleaning fluid to the filter cloth located in the cloth-transmitting path during winding.

A screening system for solid removal includes a housing and a screen positioned within the housing. A flow inlet is operatively connected to an interior chamber defined by the screen. A sump is downstream from the flow inlet for capturing solids that do not pass through the screen. A flow outlet is downstream from the screen in fluid communication with the flow inlet. A moveable cleaning assembly may be positioned either within a perimeter of the screen, around the perimeter of the screen or both. The moveable cleaning assembly is moveable with respect to the screen.

The present invention relates to a brine injection system with a plurality of needles, which are inserted into a product and through which brine is injected into the product, wherein brine which does not end up in the product is collected and recycled and wherein during recycling, the brine flows through a filter.