JPS594790Y2 - cleaning equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for cleaning dirty sand, screen scum, etc., and its purpose is to selectively and efficiently perform continuous or intermittent cleaning with the same device.

That is, the present invention provides an agitation means in the cleaning tank, and adjacent to the cleaning tank, a dust remover for scraping up and discharging the washed and separated waste, and a scraping machine for scraping and discharging the sediment. The cleaning device is equipped with a rotating drum screen above the cleaning tank, and a shutter that can be opened and closed between the cleaning tank and the dust remover. explain.

In the figure, 1 is a cleaning tank having a size and shape that has the required cleaning ability, and inside this cleaning tank 1 is a mixture of dirty sand, screen scum, or a mixture of dirty sand and screen scum, which is put into the tank. A drum screen 3 is provided at the top of the cleaning tank 1, and the center of rotation of the drum screen 3 is set at the center of rotation of the drum screen 3. It is installed and rotated so that it is higher than the water level of the cleaning tank in the cleaning state.

Adjacent to the cleaning tank 1 is a dust remover 4 for scraping up and discharging organic matter and other suspended matter (garbage) separated after cleaning, and at a position below this dust remover, sand and other sediments after cleaning are removed. A scraper 5 for scraping up material is provided, and a shutter 6 and a baffle plate 7, which can be opened and closed vertically, are provided between the cleaning tank 1 and the dust remover 4. A baffle plate 7 is provided near the bottom of the tank and at a position that partitions the cleaning tank and the scraping tank, and opening/closing means 6a, etc.
By opening and closing the shutter 7a (such as an electric cylinder) and opening the shutter 6 provided close to the bottom of the cleaning tank, the sediments deposited at the bottom of the tank are allowed to fall to the raking side.

When dirt, screen scum, etc. are continuously washed with the cleaning device configured as described above, the dirt, screen scum, etc. are continuously introduced into the cleaning tank 1 while supplying washing water.

At this time, when the shutter 6 is closed and the stirring blade 2 is rotated to drive the dust remover 4, the continuously thrown-in screen dust etc. are stirred and cleaned, and separated and cleaned organic matter (garbage)
are successively scraped up by a dust remover, and the cleaning waste water is discharged from the rear drain pipe 8 after passing through the screen of the dust remover.

When the cleaning is finished, the shutter 6 is opened to allow foreign substances such as washed sand and metals that have settled at the bottom of the washing tank to fall to the side of the scraper 5, which is mainly composed of a screw conveyor.
This separates sediment such as sand from floating garbage and discharges them.

When performing intermittent cleaning, a certain amount of screen residue is supplied with the shutter closed, the dust remover is stopped, and water is poured while stirring and cleaning is performed.

Since the screen gas being washed at this time clogs the screen of the dust remover which is stopped, the washing water is drained by rotating the drum screen 3 provided at the top of the washing tank.

That is, the floating screen gas washed by the rotation of the drum screen is prevented from flowing out, but is drained.

After the screen dregs have been thoroughly rinsed in this way, the dust remover is operated to scrape up the washed screen dregs and discharge them to a dehydrator or the like.

After scraping and discharging the screen residue, the shutter is opened to send the sediment to the seed water machine, and the stirring blade is stopped to scrape and discharge the sediment such as sand.

Further, when cleaning only the dirty sand, it can be easily carried out by charging the dirty sand into the cleaning tank in the same manner as in the continuous or intermittent cleaning method described above.

According to the present invention, cleaning of screen scum or dirt can be selectively performed with one device, and a rotary type is installed at the top of the cleaning tank, with the center of rotation of the drum screen being higher than the normal operating water level. Install a drum screen,
Moreover, since a shutter that opens and closes is provided between the cleaning tank and the dust remover, the dirty sand and screen scum can be cleaned continuously or intermittently, and there is an advantage that the cleaning can be carried out efficiently.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view, and FIG. 2 is a plan view. 1...Cleaning tank, 2...Agitation means, 3.
・・・・Drumscnorn, 4・・・・Dust remover,
5... Scraping machine, 6... Shutter, 7
...Baffle plate, 8...Drain pipe.

Claims (1)

[Scope of utility model registration request] In a cleaning device, a stirring means is provided in a cleaning tank, and a dust remover for scraping up and discharging the washed and separated waste and a scraping machine for scraping and discharging sediment are installed adjacent to the cleaning tank. and a drum screen that is rotatably driven at the upper part of the washing tank and on the side facing the scraper is provided in such a way that the center of rotation of the drum screen is higher than the inner surface of the washing tank in normal washing conditions,
The cleaning device is also equipped with a shutter that can be opened and closed between the cleaning tank and the dust remover.