CN210278358U

CN210278358U - Static water decanting device

Info

Publication number: CN210278358U
Application number: CN201920812755.XU
Authority: CN
Inventors: 丁武斌; 朱超
Original assignee: Jiangsu Dafa Environmental Protection Technology Co ltd
Current assignee: Jiangsu Dafa Environmental Protection Technology Co ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-04-10
Anticipated expiration: 2029-05-31

Abstract

A static water decanting device relates to the technical field of sewage treatment equipment and comprises a sedimentation tank, wherein the sedimentation tank comprises an upper sedimentation section and a lower mud dropping section, the lower mud dropping section is arranged in an inverted funnel shape, a mud dropping opening is formed in the bottom of the lower mud dropping section, and an air baffle plate is fixedly arranged below the mud dropping opening; the upper part of the sedimentation tank is provided with a tank cavity which is internally provided with a decanting mechanism, the decanting mechanism comprises a decanting tank and a decanting baffle which is vertically arranged, two ends of the decanting baffle are fixedly connected to the inner wall of the sedimentation tank, a decanting collecting cavity is formed between the decanting baffle and the inner wall of the sedimentation tank, and the decanting tank is arranged in the decanting collecting cavity. The utility model discloses a static state is strained water, can carry out precipitation treatment to the water before straining through the precipitation tank, need not use motion for it is more convenient to use and maintain, and does not need the power consumption, and it has long service life, strains advantages such as water high efficiency, maintenance convenience, can continuous operation.

Description

Static water decanting device

Technical Field

The utility model relates to the technical field of sewage treatment equipment, in particular to a static water decanting device.

Background

The situations that supernatant liquid needs to be decanted are often encountered in sewage biochemical treatment processes, such as decanting water in CASS process, SBR process and ICEAS DAT-IAT process, decanting supernatant liquid in a sludge concentration tank and the like. The decanting operation is generally carried out by means of decanting apparatuses which, depending on their design, are mainly of the mechanical rotary type, siphon type, sleeve type, float type, pump suction type, etc. At present, a dynamic decanter with a telescopic rod is mostly adopted in a sewage biochemical treatment process, for example, a Chinese patent document with the publication number of CN201525778U discloses a decanter which comprises a floating pipe, a decanting pipe, at least one draining branch pipe, a draining main pipe and a telescopic rod, wherein the height of the decanting pipe can be adjusted through the telescopic rod, but the decanter does not have a filtering function, a sedimentation tank needs to be precipitated in advance before the water is decanted by the decanter, otherwise, the decanted water body is turbid. Also, as disclosed in chinese patent publication No. CN100360436C, the cover-type decanter is fixed in a decanting water tank, but the decanter does not have a settling function, so it is necessary to settle the water in the decanting water tank in advance, otherwise the decanted water is turbid and does not play a role in decanting the supernatant. In the use process of the two water decanters, the water in the tank body needs to be precipitated in advance, so that the water decanting work needs to be operated intermittently, and the water decanting efficiency is seriously influenced.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a static water decanting device which has simple and reliable structure, continuous operation, high efficiency of water decanting and sedimentation function,

the utility model discloses a static water decanting device, its characteristics are: the device comprises a sedimentation tank, wherein the sedimentation tank comprises an upper sedimentation section and a lower mud dropping section, the lower mud dropping section is arranged in an inverted funnel shape, a mud dropping opening is formed in the bottom of the lower mud dropping section, an air baffle plate is fixedly arranged on the side part or below the mud dropping opening, and the vertical projection of the mud dropping opening completely falls on the air baffle plate;

the device comprises a sedimentation tank, a water inlet, a water outlet, a water inlet pipe, a water outlet pipe, a water inlet pipe, a water outlet pipe and a water outlet pipe, wherein the water outlet pipe is arranged in the water outlet pipe, the water outlet pipe is connected with the water outlet pipe, the.

The utility model discloses during the use, can pass through the support with the precipitation tank and fix in the sewage concentration pond, then can continuously pour into sewage into to the sewage concentration pond to the liquid level that makes the sewage concentration pond rises and then makes the water decant from decanting the basin. The sewage concentration tank can be provided with an aeration device or not.

The above-mentioned utility model relates to a static water decanting device, its further preferred technical scheme or technical characteristics are: the vertical projection area of the water decanting tank accounts for 10% -20% of the cross sectional area of the upper settling section of the settling tank.

The above-mentioned utility model relates to a static water decanting device, its further preferred technical scheme or technical characteristics are: the two water decanting mechanisms are symmetrically arranged in the groove cavity at the upper part of the settling tank.

The above-mentioned utility model relates to a static water decanting device, its further preferred technical scheme or technical characteristics are: the area of the sludge falling port accounts for 5-30% of the cross sectional area of the upper settling section of the settling tank.

The above-mentioned utility model relates to a static water decanting device, its further preferred technical scheme or technical characteristics are: the gas baffle is fixedly arranged at the side part of the mud falling port, the gas baffle is a flat plate, one end of the flat plate is fixedly connected to the wall of the settling tank, and the other end of the flat plate is inclined downwards.

The above-mentioned utility model relates to a static water decanting device, its further preferred technical scheme or technical characteristics are: the gas baffle is composed of two folded plates with one ends fixedly connected to form a certain included angle, the gas baffle is fixedly connected below the mud falling port through a support, and a vertex angle formed between the two folded plates is arranged right opposite to the mud falling port.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model can carry out sedimentation treatment on the water body before decanting through the sedimentation tank, so that the sewage pool of the utility model can continuously feed water without intermittent operation, thereby improving the sewage treatment speed; floating materials in the water body in the settling tank can be further decanted through the decanting baffle, so that the decanted water body is cleaner; the water decanting work can be quickly finished through the water decanting tank; the utility model adopts static water decanting without using a movement mechanism, which reduces the production cost and the failure rate, makes the subsequent maintenance more convenient and does not need energy consumption when in use; to sum up, the utility model has the advantages of long service life, high efficiency of decanting, convenient maintenance, continuous operation, etc.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the decanting water tank and the decanting baffle;

FIG. 3 is a schematic view of the utility model;

FIG. 4 is a schematic structural diagram of example 6.

In the figure, 1 is a settling tank, 2 is a mud falling port, 3 is an air baffle, 4 is a decanting tank, 5 is a decanting baffle, 6 is a water outlet, 7 is a sewage concentration tank, 8 is an aeration device, and 9 is a water outlet.

Detailed Description

The following further describes embodiments of the present invention in order to facilitate further understanding of the present invention by those skilled in the art, and does not constitute a limitation to the right thereof.

Embodiment 1, refer to fig. 1, fig. 2 and fig. 3, a static decanting apparatus includes a settling tank 1, the settling tank 1 includes an upper settling section and a lower mud dropping section, the lower mud dropping section is arranged in an inverted funnel shape, a mud dropping port 2 is arranged at the bottom of the lower mud dropping section, an air baffle plate 3 is fixedly arranged below the mud dropping port 2, and a vertical projection of the mud dropping port 2 completely falls on the air baffle plate 3; the floating impurities and bubbles are blocked by the air baffle 3 and enter the settling tank 1.

The upper part of the sedimentation tank 1 is provided with a decanting mechanism which comprises a decanting tank 4 and a decanting baffle 5 vertically arranged, two ends of the decanting baffle 5 are fixedly connected to the inner wall of the sedimentation tank 1, a decanting collecting cavity is formed between the decanting baffle 5 and the inner wall of the sedimentation tank 1, the decanting tank 4 is arranged in the decanting collecting cavity, the decanting tank 4 is fixedly connected with the inner wall of the sedimentation tank 1, the notch of the decanting tank 4 is positioned above the bottom end of the decanting baffle 5, and the wall of the sedimentation tank 1 is provided with a water outlet 6 communicated with the inner cavity of the decanting tank 4.

The sedimentation tank 1 can be fixedly arranged at the upper part of the sewage concentration tank 7 through a bracket, and the bottom of the sewage concentration tank 7 can be additionally provided with an aeration device 8. The wall of the sewage sedimentation tank 7 is provided with a water outlet 9, the water outlet 9 is connected with a water outlet 6 on the sedimentation tank 1 through a pipeline, and the water outlet 9 is arranged below the water outlet 6 to realize automatic water outlet.

The vertical projection area of the water decanting tank accounts for 10% of the cross-sectional area of the upper settling section of the settling tank. The area of the mud falling port 2 accounts for 5 percent of the cross section area of the upper settling section of the settling tank 1.

In a static decanting apparatus as described in examples 2 and 1: the vertical projection area of the water decanting tank 4 accounts for 15% of the cross-sectional area of the upper settling section of the settling tank 1. The area of the mud falling port 2 accounts for 10 percent of the cross section area of the upper settling section of the settling tank 1.

In a static decanting apparatus as described in example 3, example 1 or 2: the vertical projection area of the water decanting tank 4 accounts for 20% of the cross-sectional area of the upper settling section of the settling tank 1. The area of the mud falling port 2 accounts for 15 percent of the cross section area of the upper settling section of the settling tank 1. The two water decanting mechanisms are symmetrically arranged in a groove cavity at the upper part of the sedimentation tank 1.

In a static decanting apparatus as described in example 4, example 1 or 2 or 3: the area of the mud falling port 2 accounts for 20 percent of the cross section area of the upper settling section of the settling tank 1.

Example 5, example 1 to example 4 in a static decanting apparatus: the area of the mud falling port 2 accounts for 25 percent of the cross section area of the upper settling section of the settling tank 1. The gas baffle 3 is fixedly arranged at the side part of the mud falling port 2, the gas baffle 3 is a flat plate, one end of the flat plate is fixedly connected to the wall of the settling tank 1, and the other end of the flat plate is arranged in a downward inclined mode.

Example 6, example 1 to example 5 in a static decanting apparatus: the area of the mud falling port 2 accounts for 30 percent of the cross section area of the upper settling section of the settling tank 1. Referring to fig. 4, the gas baffle 3 is composed of two folded plates with one ends fixedly connected to form a certain included angle, the gas baffle 3 is fixedly connected below the mud falling port 2 through a support, and a vertex angle formed between the two folded plates is arranged right opposite to the mud falling port 2.

When the utility model is used, the sedimentation tank 1 is fixedly arranged in the sewage concentration tank 7 through the bracket, the aeration device 8 at the bottom of the sewage concentration tank 7 is opened, and the floating impurities and gas can be blocked through the gas baffle 3; then, sewage can be continuously injected into the sewage concentration tank 7; the liquid level in the sewage concentration tank 7 gradually rises, and then sewage enters the sedimentation tank 1 from a sludge falling port 2 below the sedimentation tank 1; because the water body in the precipitation tank 1 is relatively stable, the sewage can be gradually precipitated in the precipitation tank 1; as the liquid level gradually rises, sewage enters from the lower part of the decanting baffle 5 and flows into the decanting water tank 4, and the decanting baffle 5 can prevent floating materials in the sedimentation tank 1 from entering the decanting water tank 4; the water in the water decanting tank 4 is discharged through the water outlet 6.

Claims

1. A static water decanting device is characterized in that: the device comprises a sedimentation tank, wherein the sedimentation tank comprises an upper sedimentation section and a lower mud dropping section, the lower mud dropping section is arranged in an inverted funnel shape, a mud dropping opening is formed in the bottom of the lower mud dropping section, an air baffle plate is fixedly arranged on the side part or below the mud dropping opening, and the vertical projection of the mud dropping opening completely falls on the air baffle plate;

2. A static decanting apparatus as claimed in claim 1, wherein: the vertical projection area of the water decanting tank accounts for 10% -20% of the cross sectional area of the upper settling section of the settling tank.

3. A static decanting apparatus as claimed in claim 1, wherein: the two water decanting mechanisms are symmetrically arranged in the groove cavity at the upper part of the settling tank.

4. A static decanting apparatus as claimed in claim 1, wherein: the area of the sludge falling port accounts for 5-30% of the cross sectional area of the upper settling section of the settling tank.

5. A static decanting apparatus as claimed in claim 1, wherein: the gas baffle is fixedly arranged at the side part of the mud falling port, the gas baffle is a flat plate, one end of the flat plate is fixedly connected to the wall of the settling tank, and the other end of the flat plate is inclined downwards.

6. A static decanting apparatus as claimed in claim 1, wherein: the gas baffle is composed of two folded plates with one ends fixedly connected to form a certain included angle, the gas baffle is fixedly connected below the mud falling port through a support, and a vertex angle formed between the two folded plates is arranged right opposite to the mud falling port.