KR900007989B1 - Sludge recovery apparatus of sewer - Google Patents

Abstract

The reclamation tank (3) connected with reclamation hose (2) and is divided into a sludge tank (3') and a water tank (3") by filter screen, the water tank connecting to a second sewage tank (6) (3"), which connects with clean-water tank (9) through pump (8). The reclaimer operates to spout water from jet-nozzle (1) through into the sewage system.

Description

Sludge collection apparatus such as sewers

The figure is explanatory drawing which shows the Example of this invention.

* Explanation of symbols for main parts of the drawings

1: Jet nozzle 2: Recovery hose of sludge

3: sludge collection tank 3 ': sludge tank

3 ": water tank 4: filter screen

5: filter 6: secondary sewage tank

7: the last filter 8: water-sealed pump

9: water purification tank 10: pump

11: high pressure hose 12,12 ': water gauge

5 ', 7', 13: Pipeline M: Manhole

S: sewer

The present invention relates to a sludge recovery apparatus such as a sewage for recovering sewage tangled in a mud state deposited in the sewer.

Conventionally, in order to recover the sludge deposited on the sewer inside, the sludge is often hardened in the sewer. Therefore, a jet nozzle is inserted into the sewer and water is jetted from the nozzle. Therefore, it is necessary to make the solidified sludge flow.

For this reason, in the past, a vehicle for supplying water and a vehicle for recovering sludge had to be kept separately at a site where sludge was to be recovered, and in addition, since the consumption of water usually increases, an additional vehicle is required. It is necessary to replenish the water by the water supply, and the sludge recovered in the flow state contains water, so the volume is very large (water occupies about 85%). There was a problem that the vehicle became full and an additional vehicle was needed again to recover the sludge.

The present invention divides a sludge recovery tank connected to a sludge recovery hose into a sludge tank and a water tank by a filter screen, connects the water tank to a secondary sewage tank, and seals the secondary sewage tank. The problem was solved by connecting the purified water tank through a pump and allowing water from the purified water tank to be ejected from the jet nozzle through the plunger pump.

In the present invention, the water jetted from the jet nozzle makes the owner which has hardened into a fluid state. The sludge recovery hose draws the fluidized sludge together with water into the sludge recovery tank, and the water sucked into the sludge recovery tank is purified again through a filter, and then sent back to the purified water tank through a sewage tank to finally jet Since it is ejected from the nozzle, the water is circulated and used in the apparatus, so that not only the problem caused by the conventional water supply is solved, but also the sludge tank of the sludge recovery tank gradually collects as the sludge recovery operation proceeds. Since the concentrated sludge removed continues to accumulate, even if only one apparatus of the present invention is present in the field, the sludge can be recovered very effectively.

Example

An embodiment of the present invention according to the accompanying drawings is as follows.

In the drawing, reference numeral 1 denotes a jet nozzle, 2 denotes a sludge recovery hose, 3 denotes a sludge recovery tank, and an on-site sludge tank 3 'and a water tank on the left side through a filter screen 4. It is divided into 3 ". The filter screen 4 should just be a board | plate shape without a hole in the lower part, and the hole to which water passes through the upper part is sufficient. The water tank 3" on the left is a filter (5). Is connected to the secondary sewage tank 6 by a pipeline 5 '. The lower part of this secondary sewage tank 6 is connected to the water-sealed pump 8 through the last filter 7 and the upper part through the conduit 7 '. The water-sealed pump 8 is a pump that circulates water by means of an impeller, blows water outwardly by centrifugal force, compresses air into it, and generates a vacuum, and simultaneously sucks air and water.

The output of the water sealing pump 8 is connected to the purified water tank 9. The water in the purified water tank 9 is ejected from the jet nozzle 1 from the plunger pump 10 via the high pressure hose 11. In the case of the sewer where the drainage from the home flows, since there is water in the sewer, the recovery tank 3 is empty. Go to one piece.

Then, first, the recovery lake 2 of the sludge is put into the sewer S through the manhole M, and the water-sealed pump 8 is operated. Since the recovery tank 3 is empty as described above, the water-sealed pump 8 pumps air in the recovery tank 3 through the conduit 5 'and in the secondary sewage tank 6 through the last filter 7. The water is sucked and sent to the purified water tank (9).

As a result, a vacuum is generated in the recovery tank 3, and the sludge and water are sucked from the sludge recovery lake 2 to the recovery tank 3. In this way, the water is filled in the water tank 3 "through the filter screen 4, and when the water level reaches a constant level, the water level gauge 12 is activated, for example, a rotating lamp (not shown) displays this. It is found that the water tank 3 "of the recovery tank 3 is sufficiently filled with water, and is ready to eject water from the plunger pump 10. Since the secondary sewage tank 6 and the purified water tank 9 are connected by the conduit 13, the water collected into the purified water tank 8 by the pump 8 until then is discharged from the secondary sewage from the conduit 13. It is returned to the tank 6. Next, the jet nozzle 1 is inserted into the sewer S, and the pull plunger pump 10 is operated to eject water from the end of the jet nozzle 1. The jet nozzle 1 is advanced forward by the propulsion force of the jet, the sludge in the sewer (S) is fluidized to flow in the downward direction of the manhole (M). Since the capacity of the water-sealed pump 8 to discharge water is the same as that of the plunger pump 10, the same amount of water as the outflowed water is constantly supplied to the purified water tank 9.

As described above, since the water-sealed pump 8 is a pump that simultaneously sucks water and air, the sludge contained in the water can be recovered from the sludge recovery hose 2 by the action thereof to the recovery tank 3. have. As described above, the water circulates in the apparatus, and in the sludge tank 3 'in the sludge recovery tank 3, the density of the sludge is moderately increased, and this is achieved through a window (not shown) or by a water gauge 12'. When detected and known by the buzzer or the like, the recovery operation is completed.

And when it is going to collect the earth and sand etc. of both grooves in a highway, etc., it is necessary to take water to the site. In such a case, water is collected in the recovery tank 3 from the beginning, and it goes to the water-sealed pump 8 and plunger. The pump 10 operates simultaneously from the beginning.

In addition, a part of the output of the plunger pump 10 may be used to clean the filters provided in several places in the apparatus so as to prevent the blockage of the holes.

Since the present invention is constituted as described above, water continuously circulates in the apparatus in the recovery operation of the sludge, so that even if there is only one apparatus of the present invention, dirt, such as sludge, which is effectively entangled in Taiwan, can be recovered. The ratio of sludge can reach up to about 80%.

Claims (1)

The sludge recovery tank 3 to which the sludge recovery hose 2 is connected is divided into a sludge tank 3 'and a water tank 3 "by a filter screen 4, and the water tank 3". Is connected to the secondary sewage tank 6 again, the secondary sewage tank 6 is connected to the purified water tank 9 through the water sealing pump 8, and the water in the purified water tank 9 is pumped 10 Sewage collection apparatus such as sewerage to be ejected from the jet nozzle (1) through the).

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