JP3458186B2 - Pellet filter material washing device - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a resinous pellet filter.
It concerns the endless cleaning of materials and the regeneration of filter layers.

[0002]

2. Description of the Related Art Conventionally, cleaning of resin pellet filter media and regeneration of filter layer are carried out by cleaning with a screw and air bubbling,
Since backwashing was performed, it was necessary to stop the operation of filtration or the removal of SS (suspended matter) due to negative pressure due to this, and it was a batch type that required cleaning regeneration time.

[0003]

The present invention has been described above.
It was made to solve such a conventional problem,
During operation, intermittent performs regeneration of the filter layer, child delivery and cleaning the bearing without endless resinous pellets filtration media in the filtration operation, the cleaning apparatus of the pellet filter media that allows the reproduction of the filtrate layer
The purpose is and.

[0004]

The bottom of the resin pellets formula filtration tank SUMMARY OF THE INVENTION, Perret absorbing pellets filter medium of the filter layer by a pump
A pellet collecting filter is attached, the pellet filter medium is pumped out by a pump, and this is introduced into a centrifugal water flow type solid water separator. Centrifugal water type solid-water separator is a cylindrical tank with a screw attached to the center and a conical mesh surrounding the screw. Pellet in this cylindrical centrifugal water flow type solid water separator
When the filter medium is fed, the water and the pellet filter medium are separated into solid water by the centrifugal force of the water flow, and only the waste water is discharged. Screw whereas filtration layer, in which intrude a solid water separated pellets filtration media, the tip and into a bag shape, as room fitted with a mesh inside, here from the take-out pipe, bundling the suction of the port <br/> pump . The purpose of this is that solid pellet filter media cannot be pumped, so this water is bound to the suction line of the pellet filter media and adjusted by a control valve so that the ratio of pellets to water is 4 and that from the inside of the filter bed is adjusted. Rinse and wash the pellets with water, and the wastewater is sucked out and drained from the water-flow type solid-water separator, so the treated water does not become turbid even if the filter layer is washed and regenerated during operation.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION A pump 7 is used for reliably and speedily carrying out a circulation cleaning process for cleaning a pellet filter medium . Centrifugal water flow type solid water separation tank for making a centrifugal water flow when the water and the pellet filter medium are fluidized and sent into the tubular centrifugal water flow type solid water separation device 11 where solid water is separated and waste water is discharged A screw 13 is attached to the center of 11 , and a conical net is attached so as to surround the screw. The pellet filter medium separated into solid and water is pushed into the filter layer 4 by the screw 13, but a net cylinder is made inside the tip of the screw cylinder, and a room surrounding this is made, and the pump is installed here.
For the suction of 7 , remove the pipe that supplies the rinse water. The pellet pump 7 pumps out the pellet filter medium from the pellet collecting box 6 attached to the bottom of the filter tank .
The solid pellet filter medium joins the rinse water taken out from the tip of the screw 13 at the inlet of the pump 7. Centrifugal water flow type solid-water separation chamber for fluidizing the pellet filter medium by adjusting this to a ratio of 4 pellets to 6 water with control valves 9 and 8.
The pellet filter medium separated by solid water in 11 is screw 13
Rinsed with, the sewage is adjusted solid water in pump 7, and water in a centrifugal flow type solid-water separating device 11 as the fluid, sewage can circulating cleaning endlessly drained, washed pellets filter material during operation The treated water does not become cloudy even after performing.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. (B) sewage flowing from the raw water inlet of the water sampling 1 water supply and filtration of wastewater is filtered by passing water filtrate layer 4 in upflow through the flow pipe is water sampling from treated water outlet 5. If contamination of the filtrate layer 4 increases head loss is increased for passing water, since the water level in the cushion tank 2 increases, wherein after obtaining the information, wash pellet filter media is started.

[0007] (b) was collected and passed water at the washing-up flow of resinous pellets filter medium of the filter layer, when filtered, the filtrate layer 4 becomes soiled from the bottom. Therefore, mounting a pellet collection basins 6 at the bottom, piping connect it to the pump 7. Pellets filter media is a solid, because alone can not pump takes water from the pellets rinsing chamber 14, the water 6 in the regulation valves 8 and 9, by adjusting the proportion of pellets 4, which was a fluid port down <br / In step 7, water is sent to the centrifugal water flow centrifugal solid water separation chamber 11 to separate the pellet filter medium and sewage, and the sewage is returned from the sewage drainage port 12 to the raw water tank.

(C) Pellet filter material is fed into the filter tank and rinsed, and pellets solid-water separated by the centrifugal water-flow type solid-water separator 11
The filter medium is fed into the filter layer 4 by the screw 13 , but dirt is attached to the surface of the pellet filter medium . Therefore stirred at screw 13, the water of the pellet filter media and filtrate tank is rinsed joins when fed, sewage generated by this is sucked from the pellet rinsed chamber 14 to the pump 7, pellet
Centrifugal water flow type solid-water separator 1 used again for fluidization of filter media
The pellet filter medium is rinsed after being drained from No. 1 .

[0009] (d) endless water level automatic operation cushion tank 2, raise the water level in the head loss of the filter tank, pump 7 is operated to obtain this information, pellets
The filter medium is collected by the pump 7 and the centrifugal water flow solid water separation device 11
The pellet filter media and sewage are sifted with, and sewage is sewage drain
It is drained from 12 , and the pellet filter medium is fed by a screw 13 and rinsed. This sewage is sucked by the pump 7 from the pellet rinsing chamber 14 for operation, so that even if this operation is performed during operation, the sampled water discharged from the treated water outlet 5 is not turbid. By this operation, the filth at the bottom of the filter tank , which causes a harmful effect, is intermittently removed by the timer method using the sewage pump 16 .

[0010]

[Effect of the Invention] invention as described above, washed resinous filtration machine pellet pump operates in that sense the clogging of the filter layer in the water level of the raw water inlet of the cushion tank, from the pellet recovered basins pump For the pellet filter media to be inhaled, water is taken from the pellet rinsing chamber attached to the tip of the screw that feeds the pellet filter media from the centrifugal solid water separator, and when this is merged, consider that the pellet filter media can be pumped as a fluid. The pellet filter medium is fed into a centrifugal water flow type solid water separator. Solid water is separated from the pellet filter media and the waste water is drained, and the waste water is drained, and the pellet filter media is sent to the filter layer.However, even if this operation is carried out during filtration water sampling, the treated water does not become turbid and endless operation is possible. .

[Brief description of drawings]

FIG. 1 is an explanatory view according to a cross-sectional view of the invention.

[Explanation of Codes] 1 Raw water inlet 2 Cushion tank 3 Inflow pipe 4 Filter layer 5 Treated water outlet 6 Pellet collection box 7 Pump 8 Pellet control valve 9 Rinsing water Pellet fluidization control valve 10 Pellet water supply line 11 Centrifugal water flow type solid water Separator 12 Sewage drainage port 13 Screw 14 Pellet rinsing chamber 15 Pellet fluidizing rinse water line 16 Sewage pump

Claims (2)

(57) [Claims] 1. A resinous pellet filter medium housed in a filter tank.
Therefore, the suspended matter is filtered by the negative pressure generated by the water flow.
Equipped with the device, the pellet filter media in the filter tank is separated from the wastewater.
A washing device for pellet filter media that is separated and washed, comprising a pellet collecting box provided in the filter tank, a cylindrical tank provided in the filter tank, and a tank provided in the tank.
Separate the pellet filter medium and sewage with the screw placed
Centrifugal water flow type solid water separation device and the pellet filter media and water sucked from the pellet collection box
It consists of a pump that feeds the centrifugal water flow type solid-water separator.
A mesh tube at the bottom of the centrifugal water flow type solid water separator
A rinsing chamber is formed, and the pellets in the tank are taken in through the pellet collecting box.
The filter medium is washed with the centrifugal water flow type solid water separator.
The washed pellet filter medium back into the filter tank, and rinse the pellet filter medium with the screw to remove the water.
Lettuce is removed from the rinsing chamber to the outside of the tank to transport the filter media
It is characterized in that it is connected to the pump for supply
And a cleaning device for pellet filter media. 2. The centrifugal water flow type solid-water separator according to claim 1.
The water centrifugally separated from the pellet filter medium in
Make sure that piping was installed between the tank and the filter tank so that it could be returned to the tank.
A characteristic device for washing pellet filter media.