KR980013292A - Sewage Distrubutor with the Function of Grit Chamber of Sewage Treatment Plant - Google Patents

Abstract

The present invention relates to a flow distributing tank of a sewage treatment plant, comprising a needle collecting device, a desolvation device, an overflow warehouse (3) overflowing with sewage, an outflow channel (4) formed between the outer wall (15) The grit separation and the flow distribution of sand contained in the sewage can be performed at the same time by using the gilt-distributing flow distribution tank of the wastewater treatment plant having the flow distribution apparatus composed of the outflow conduit 6 connected to the outflow waterway 4 It is possible to obtain the effect of reducing the space required for the sewage treatment plant, the construction cost and the maintenance cost of the sewage treatment plant, and to distribute the flow rate in proportion to the capacity when there is a difference in the capacity of the primary settling tank or the aeration tank.

Description

Sewage Distrubutor with the Function of Grit Chamber of Sewage Treatment Plant

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flow rate distribution tank of a sewage treatment plant, and more particularly, to a flow rate distribution tank having both a siltation process and a flow rate distribution.

The sewage treatment plant for removing pollutants and impurities in the raw water is provided with a gypsum basin for sedimenting and removing the sand introduced into the treatment plant along with the sewage, and a flow distribution tank for uniformly distributing the sewage to the primary settling basin or aeration tank.

These gypsum naturally precipitates solids such as sand, called grit, in the sewage by natural gravity to prevent abnormal abrasion of the machine equipment and prevents heavy material from accumulating in the piping and water channel, And is installed to reduce the frequency of the aeration tank and the soaking tank due to excessive accumulation of grit.

On the other hand, the flow distributing tank is a device for distributing the sewage water to the plurality of sedimentation basins at the same flow rate, because the sewage pumped from the inflow pump site is simultaneously introduced into a plurality of primary sedimentation basins and aeration tank, which are the subsequent treatment processes.

FIG. 7 shows a schematic diagram of a conventional sewage treatment plant. In the sewage treatment plant, heavy sewage such as sand and gravel is removed while sewage flows in, and is introduced into a distribution tank, which is a flow distribution device, And then discharged through aeration tank, final sedimentation tank, disinfection tank, and the like.

However, the gypsum used in the conventional sewage treatment process as described above has a problem in that the basic construction cost of the structure itself such as the wall construction, which is an irrelevant facility of the gypsum, There is a problem that it is required to overcome the problem.

In addition, due to the additional water head loss caused by the slope, the inflow pumping station is deeper by 2 ~ 3m than the slope does not exist, and it is lowered to 10 ~ 15m below the surface of the ground. Therefore, the required lift of the pump is increased, And machinery equipment such as a sludge remover is expensive.

In addition, as the sewage flows along the pipeline, the large sands are deposited on the manholes and the amount of sand reaching the sewage end treatment plant is small, so the utilization of the sludge is lower than the actual facility investment.

A distribution tank, which is a conventional flow distribution apparatus, is a water tank made of a simple concrete structure. By providing a gate in each direction and distributing the flow rate to the primary settling basin by the outflow to each gate, And the flow rate distribution ratio largely fluctuates even with a small movement of the gate.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to reduce the construction and maintenance cost of a gypsum and to provide a gypsum- The purpose is to provide a distribution tank.

In order to achieve the above-mentioned object, the present invention is characterized in that a needle capturing and capturing lifting device is provided in one water tank, and a flow distributing device is provided around the water tank to serve as a gutter and a flow distributing tank.

The flow distribution device has a weir and an outflow channel on the periphery of the upper part of the water tank, an outflow channel is provided in each outflow channel, and in order to control the flow rate distributed to each outflow channel, And a partition corresponding to the outflow pipe is provided.

That is, the interval between the partition walls provided in the outflow channel is widened, and the flow rate flowing through the outflow channel corresponding thereto can be increased or decreased according to the narrowing.

The sludge collecting and lifting device is capable of raking and collecting the sunken sand on the bottom of the tiller, and the bottom of the tiller is slightly inclined so that the sand can be efficiently collected.

The grit removal and flow distribution of the sand contained in the sewage can be performed at the same time by using the above-described gypsum-containing flow rate distribution tank, thereby reducing the space required for the sewage treatment plant, the facility construction cost, and the maintenance cost , It is possible to distribute the flow rate in proportion to the capacity when there is a difference in the capacity of the primary settling tank or the aeration tank.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic vertical cross-sectional view of a flow distribution tank in accordance with the present invention;

2 is a top plan view of a flow distribution vessel in accordance with the present invention;

3 is a bottom plan view of a flow distribution tank in accordance with the present invention;

4 is a schematic perspective view of the upper part of the flow distribution tank according to the invention;

5A is a longitudinal sectional view showing another embodiment of the present invention.

FIG. 5B is a schematic perspective view showing another embodiment of the present invention. FIG.

6 is a schematic diagram of a sewage treatment system in which a flow distribution tank according to the present invention is employed.

Fig. 7 shows a conventional sewage treatment system.

DESCRIPTION OF THE REFERENCE NUMERALS

1: Sediment collecting device, 2: Sediment lifting device, 3: Overflow warehouse, 4: Runoff channel, 5: Partition, 6: Runoff channel, 7: Driving device, 8: Collecting day, 9: Collecting spatula, 10: Hopper, 11: a collecting groove, 12: a rectifier, 13: an inlet pipe, 14: a bucket. 15: outer wall

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic vertical sectional view of a flow distribution tank according to the present invention. The present invention is provided with a needle collecting device 1 and a needle lifting device 2, (4), and a partition (5) dividing the outflow channel (4) and an outflow channel (6) through which the treated water flows out.

The needle collecting device 1 is driven by a driving device 7 installed at the upper part and has a plurality of collecting blades 8 for scraping off sand and the like to the bottom, So that sand can be sent to the collecting hopper 10 when rotating.

The bottom of the water tank is slightly inclined for efficient sand collection, and the collecting groove 8 is sandwiched by the collecting groove 11 along the circumferential direction of the bottom, and the gathered sand is collected by the collecting spatula 9 To the hopper collecting hopper 10. The needle collecting hopper 10, as shown in FIG.

On the other hand, the rectifying column 12 is provided at the center of the water tank, so that the sewage introduced from the pump station through the inlet pipe 13 is kept in a rectified state in the gutter so that the sand contained in the sewage can sink efficiently.

The sludge collecting device 2 is capable of removing the sludge collected in the collecting hopper 10 while a plurality of buckets 14 are connected to the sludge collecting hopper 10. The bucket 14 is formed with many fine holes It is possible to salvage the low moisture content of the needle.

In the flow dividing tank for combined gypsum with such a structure, the sewage flows in from the pumping station through the inlet pipe 13 and flows downward from the rectifying column 12, and the sand and the like are separated from the bottom by the sink, And flows out to the respective outflow conduits 6 via the overflow weir 3 and the outflow conduit 4. [

Figure 2 is a conceptual top plan view of a flow distributor in accordance with the present invention in which the sewage entering through the inlet line 13 and through the rectifier 12 flows over the overflow weir 3 and flows into the outflow canal 4 And sewage between the compartments (5) collected in the outflow channel (4) flows out to the primary settler along each outflow channel (6).

At this time, if the interval between the partition walls 5 is increased, the amount of sewage collected in the outflow channel 4 formed on the upper part of the outer wall 15 increases, and the amount of sewage flowing out to the outflow channel 6 corresponding thereto becomes larger, 5) are narrowed.

That is, the flow rate of the sewage flowing into the primary settling tank can be adjusted in proportion to the size of the primary settling tank or the aeration tank by adjusting the interval between the partitioning plates (5).

3 is a bottom plan view of the flow distribution tank according to the present invention, schematically showing a sludge collecting device for raking sands that have settled on the bottom. The operation of the apparatus is as follows. As the needle collecting apparatus 1 rotates, the sand that has fallen on the floor collects in the needle collecting groove 11 by the collecting blade 8, and the sand accumulated in the needle collecting groove 11 Is sent to the needle collecting hopper 10 by the collecting spatula 9 and is discharged to the outside.

Figure 4 is a schematic perspective view of the upper part of the flow distribution tank according to the invention in which the sewage flowing over the overflow weir 3 is collected in an outflow channel formed between the outer wall 15 and the overflow weir 3, Is distributed to each of the outer settling basins along the outflow channel 6 corresponding thereto.

5A and 5B are a schematic longitudinal sectional view and a perspective view showing another embodiment of the present invention in which the overall structure of the outer wall 15 is a rectangular structure and the needle collecting device 1 is a straight line The sand collected on the bottom of the settling tank is pushed to the side of the collecting hopper 10 while the collecting hopper 10 attached to the bottom collects the collected sand in the reciprocating motion. A lifting device 2 is provided.

And an overflow water channel 4 is formed between the outer wall 15 and the overflow weir 3 so that the overflow water channel 4 is formed between the outer wall 15 and the overflow weir 3, The waste water can be discharged through the outflow pipe 6 connected to the outflow water channel 4 and a plurality of partitions 5 are installed in the outflow water channel 4, And the flow rate to the tea settling tank can be adjusted.

Further, a rectification plate 16 for guiding the flow of sewage is installed near the inflow channel 13 into which the raw water flows, so that the sand is easily settled.

FIG. 6 is a schematic view of a sewage treatment system in which a flow distribution tank according to the present invention is employed. Conventionally, sewage is fed after sewage is introduced. However, when the apparatus of the present invention is employed, And then enters the tilting and flow distributing tank of the present invention through the rear flow control tank and the pump station and the pump.

Unlike the present invention, in the prior art, a gill net was installed in the previous stage of the inflow pump station of the sewage treatment plant, which was caused by the concern that the inflow pump facility and the piping facility were worn out due to the grit contained in the sewage.

However, according to past operation examples, the wear of pump and piping due to grit is very slight and difficult to identify, for example, it can be easily demonstrated in a relay pumping station facility without a sedimentation facility. The economical loss due to the abrasion of the inflow pump and the piping facilities by the grit contained in the sewage in a small amount in the sewage is very small compared to the economic loss such as facility investment and power loss due to excessive facility investment of the settlement site and increase of the lift of the inflow pump station. Since the grit is removed from the primary sediment and deposited in the subsoil or in the absence of the primary sedimentation, the sediment removal facility is appropriate in many respects between the inlet pumping station and the primary sedimentation tank.

As described above, by using the gill and flow distribution tank of the sewage treatment plant according to the present invention, it is possible to simultaneously remove the grit from the sewage contained in the sewage and distribute the flow rate, It is possible to distribute the flow rate more accurately than the conventional flow rate distribution tank and to distribute the flow rate in proportion to the capacity when there is a difference in the capacity of the primary settling tank or the aeration tank.

Claims (8)

Characterized in that it comprises a needle collecting device, a needle lifting device, and a flow distribution device. The flow distribution device according to claim 1, characterized in that the flow distribution device comprises an overflow warehouse (3) overflowing sewage and an outflow channel (4) formed between the outer wall (15) and the overflow warehouse (3) (6), which is connected to the main body of the sewage treatment plant. The flow dividing tank as claimed in claim 2, wherein the outflow channel (4) is provided with a partition (5) corresponding to each outflow channel (6). The needle collecting device according to any one of claims 1 to 3, wherein the collecting blade (8) and the collecting spatula (9) are attached to the lower surface of the needle collecting device (1) And a silt collecting hopper (10) is formed on a part of the floor of the distribution tank. 5. The wastewater treatment tank as claimed in claim 4, wherein a rectifying column (12) connected to the inflow channel (13) of sewage is provided at the center of the flow distribution tank. [6] The sludge distribution tank as set forth in claim 5, wherein the bottom of the flow distribution tank is inclined downward from the center to the periphery. 2. The needle collecting device according to claim 1, wherein the needle collecting device comprises a driving device (7) adapted to perform a linear reciprocating motion, a needle collecting device (1) driven by the driving device (7) Wherein the flow dividing device is provided with an overflow ware (3) installed on a top surface of an outer wall (15) of a quadrangular structure and an outlet (5) between the overflow ware (3) and the outer wall And an outflow channel (4) connected to the conduit (6) is formed in the flow channel. The sewage disposal apparatus according to claim 4 or 7, wherein a plurality of buckets (14) having fine holes are connected to remove the needles while the bucket (14) is lifted. Flow distributing tank for combined gypsum. ※ Note: It is disclosed by the contents of the first application.