JPH0244801Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" This invention relates to an improvement of a device for separating waste water and material during material backwashing in a filter machine using a flotation material such as spring water.

"Prior Art" Conventionally, spring water filters using flotation materials are well known. This is shown in Fig. 2 and Fig. 3 (Utility Model Publication No. 56-20007). In this conventional device, in order to prevent the material from being washed away when cleaning the material, a third
As shown in the figure, a siphon is installed in a pit at the bottom of the chamber, and when the water level of the sewage reaches a certain point, the siphon is broken and the water is discharged. Stop,
This is to prevent floating materials from being washed away.

``Problem that the invention is trying to solve'' However, with the conventional device as described above, when the concentration of wastewater after cleaning materials is high, sludge S accumulates at the bottom of the pit and cannot be discharged, as shown in the figure. There is also the disadvantage that the siphon breaker nozzle is clogged with sludge and the breaker does not work, causing the material to be washed away.
This is a problem because the vehicle operates automatically throughout the day and night.

``Means for solving the problem'' Therefore, in this invention, the structure of the pit is improved to prevent the sewage discharge path from clogging, and a siphon breaker is installed outside the overchamber to prevent sludge and This system prevents the materials from touching each other, and its gist is that a pit is provided at the bottom of the overchamber to collect water, and a siphon is installed inside the pit to prevent the floating material filled into the overchamber from coming into contact with the water. In a filtration machine that uses flotation material to prevent floating material from flowing out of the chamber during washing, a drainage port is opened at the bottom of the pit, and a U-shaped pipe with one end connected to this drainage port is used. The end is led out to the outside of the overchamber, and a supply port for the stock solution is opened near the drain port of the pit.

``Function'' This device is constructed as described above, that is, there is nothing inside the water collection pit, but there is a drainage port at the bottom, so sludge, etc. will not accumulate. There is no space required, and furthermore, during over-operation, the inside of the pit is washed with the stock solution injected from the stock solution supply port provided near the bottom of the pit, so there is no need to block the drainage channel as in conventional systems. Also,
When backwashing materials, one end of the U-shaped pipe is connected to the pit and the other end is exposed outside the overchamber, so sludge and materials never come into contact with that part, and therefore,
There is no risk of material flowing out.

``Example'' Figure 1 shows the case where this invention is applied to a filter machine for spring water filtering, and in the figure, reference numeral 1 indicates a filter chamber,
2 is a floating material, 3 is a liquid collection nozzle, 4 is a pit for collecting water, 5 is a supply port for raw liquid, 6 is a blade for stirring the material, 7 is a U-shaped pipe for draining waste water, and 8 is an air breaker pipe , 9 is a current plate. In the above-mentioned filter machine, the raw liquid is sent from the supply port 5 to the pit 4, passes through the flotation material 2 of the filter chamber 1, and then is taken out to the outside through the water collecting nozzle 3 and the floor 10. When the flotation material 2 becomes clogged (the detection device is not shown), the supply of the stock solution is stopped, the flotation material 2 is stirred with the blades 6 to loosen it, and then the U
Sewage is discharged to the outside of the machine through pipe 7. At this time, as mentioned above, there is no place for sludge to accumulate in the pit, so the sewage discharge channel will not be clogged, and since the air breaker is installed outside the machine, the sewage can be discharged and the overchamber can be cleared. It operates reliably when the water level falls to a predetermined level and does not cause the flotation material 2 to be washed away.

``Effects of the invention'' As is clear from the above explanation, this invention completely solves the problem of blocking the drain of waste water and washing away the material when washing the material, which occurs in the conventional overflow machine using flotation material. In particular, since the permeator used for this type of spring water etc. requires completely automatic operation, the benefits obtained in use are significant.

[Brief explanation of the drawing]

Figure 1 is a longitudinal cross-sectional view of a filter machine with this invention.
Figure 2 is a vertical cross-sectional view of this type of conventional overpass machine;
The figure is an enlarged longitudinal sectional view of the main part of FIG. 2. Code explanation, 1... Over chamber, 2... Floating material, 4
...Pitsuto, 5... Supply port for stock solution.

Claims (1)

[Scope of utility model registration request] A pit 4 for collecting water is provided at the bottom of the overchamber 1, and a siphon is provided in the pit to prevent the flotation material 2 filled in the overchamber 1 from flowing out of the overchamber when backwashing. In the overflow machine using the floating material 2, a drainage port is opened at the bottom of the pit 4, and the other end of the U-shaped tube 7, one end of which is connected to this drainage port, is led out to the outside of the overflow chamber 1. A floating material separation device characterized in that a supply port 5 for the stock solution is opened near the drain port of the pit 4.