Sludge scraping and collecting apparatus
AssigneeFujiwara Sangyo Kabushiki Kaisha
InventorMichihiro Fujiwara
Life of this patent
Estimating the term…
Abstract
The present invention provides a sludge or the like scraping and collecting apparatus. This apparatus has a whole structure more simplified and can realize a cost-down. Further, it is advantageously installed. The scraping and collecting apparatus comprises a carriage having a main body formed from a single long member constant in section in a front and rear direction. The carrier main body has a front end and a rear end provided with sludge scrapers. These front and rear sludge scrapers are adapted to be able to simultaneously and interlockingly move by a pulling and conveying means through a longitudinally and interlockingly moving member which advances and retreats in parallel with the carriage main body.
Claims17
A sludge scraping and collecting apparatus which comprises a guide rail laid on a bottom of a processing basin, rectangular in plan, having side walls opposing to each other, front and rear end walls perpendicular to these side walls and one end provided with a pit, so as to pass through a mid portion between the both side walls in a longitudinal direction which is a front and rear direction, and a carriage having running wheels and provided on the guide rail so that it reciprocally runs in the front and rear direction, the carriage being provided with a sludge scraper which scrapes and collects the sludge to be deposited on left and right sides of the guide rail toward the pit so that the sludge scraper is switchable over vertically and rotatably from a lowered scraping and collecting position to a lifted-up return position and vice versa, there being disposed above the processing basin a driving portion which continuously rotates a driven wheel and switches over its rotation direction to a normal one or a reverse one and vice versa, the sludge scraper being rotated and switched over to either of the upper position and the lower position through a pulling and conveying means wrapped around the driven wheel and a direction-conversion wheel arranged in the processing basin, and then the carriage being pulled forwardly or rearwardly.
A sludge scraping and collecting apparatus which comprises a carriage provided on a bottom of a processing basin, rectangular in section, such as a sedimentation basin and aeration reservoir, having side walls opposing to each other, front and rear end walls perpendicular to these side walls and one end provided with a pit, so as to pass through a mid portion widthwise of the basin, a common shaft projecting from the carriage so as to extend in a left and right direction and running wheels of tire type provided at the left and right projections so as to be rotatable and rollable on the bottom of the basin, a sludge scraper being provided around the common shaft, around which the running wheels are also provided, and being lowered to take a scraping and collecting position for scraping and collecting the sludge toward the pit when it advances and being listed up to take a return position when it retreats, the carriage being arranged to be able to advance and retreat by a means for preventing run-out in the left and rear direction, there being disposed above the processing basin a driving portion which continuously rotates a driven wheel and switches over its rotation direction to a normal one or to a reverse one and vice versa, the sludge scraper being rotated and switched over to either of the upper position and the lower position through a pulling and conveying means wrapped over the driven wheel and a direction-conversion wheel arranged in the processing basin, and then the carriage being pulled forwardly and rearwardly.
A sludge scraping and collecting apparatus rotatably provided with a rake arm having a rake which scrapes and collects the sludge on a bottom surface of a circular sedimentation basin and falls it into a central pit, wherein the rake arm is rotated by a driven wheel equipped in the rake arm, which is rolled along the bottom of the basin while being forcedly rotated through a driving source and makes a rotation movement.
A sludge scraping and collecting apparatus rotatably provided with a rake arm having a rake which scrapes and collects the sludge on a bottom of a circular sedimentation basin and falls it into a central pit and adapted to rotate over the water and to forward the floating scum outwardly and radially of the basin while scraping and collecting it so as to flow and remove it into a scum removing device, the scraping and collecting apparatus further including, as a means for scraping and forwarding the scum radially and outwardly of the basin, a scraping and forwarding member able to circulate so that it scrapes and forwards the scum from a radially inward side of the basin to a radially outward side thereof while floating on the water of the basin and then rotates to retreat to the radially inner side.
A sludge scraping and collecting apparatus which comprises an air introducing main conduit provided at an upper position from a bottom wall of a processing basin, rectangular in section, having left and right side walls opposed to each other, front and rear end walls perpendicular to the side walls and one longitudinal end provided with a means for expelling the scraped and collected deposits, and installed so as to extend in parallel to the side walls, an air diffusing pipe projecting from the main conduit while crossing it so as to extend toward the side wall and communicating with the main conduit, and scrapes and collects the deposits precipitated on the bottom wall of the processing basin such as the aeration reservoir and forwards the deposits toward the means for expelling them, wherein a guide rail is laid on the bottom wall so as to pass in a longitudinal direction, which is a front and rear direction, between the side walls, the guide rail having an upper portion provided with a framework so that the framework is able to run reciprocally in the front and rear direction and with an induction scraper of the fixed type and another scraper of the vertically switchable type, the induction scraper being adapted to scrape out the deposits precipitated in a region below the air diffusing pipe to an exterior area, the another scraper being lowered to scrape and forward the deposits precipitated on the bottom wall along with the deposits scraped out by the induction scraper and on the other hand, being lifted up to return rearwards without scraping back the deposits.
Dependencies are inferred from the claim text.