CN211283848U

CN211283848U - Unpowered digestion tank

Info

Publication number: CN211283848U
Application number: CN201921021192.9U
Authority: CN
Inventors: 吴峰; 赵建军
Original assignee: Inner Mongolia Clear Environmental Technology Co ltd
Current assignee: Inner Mongolia Clear Environmental Technology Co ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-08-18
Anticipated expiration: 2029-07-02

Abstract

The utility model discloses an unpowered digestion tank, which comprises a tank body buried below a frozen soil layer, wherein the tank body comprises a first tank body, a second tank body and a third tank body which are arranged side by side, the upper part of the first tank body is communicated with a water inlet pipe, the top of the first tank body is communicated with a decontamination port, and a well cover is buckled in the decontamination port; communicating pipes are respectively communicated between the first tank body and the second tank body and between the second tank body and the third tank body. Through setting up the third jar of body to pack the cobble in the third jar of body, will pass through the effect of the absorption of tiny solid matter, nitrogen compound and phosphorus compound in the first jar of body and the second jar of body hydrolytic acidification back sewage, guarantee can not contain a large amount of no solid matter in the sewage that discharges from the drain pipe, reduce the content of nitrogen, phosphorus compound in the sewage, reduce the filtration number of times of the sewage treatment of discharging in the drain pipe, reduce the process cost that nitrogen, phosphorus compound handled.

Description

Unpowered digestion tank

The technical field is as follows:

the utility model relates to a domestic sewage treatment field, concretely relates to unpowered digestion tank.

Background art:

in rural areas and other areas without public sewage pipe networks and treatment systems, two-grid or three-grid digestion tanks are generally used for domestic sewage treatment, and then special vehicles are used for conveying sewage in the tanks to special sewage treatment systems for advanced treatment. The digestion tank only carries out primary biological decomposition on the sewage, and ensures that floating objects and macromolecular substances in the sewage are decomposed. However, the sewage treated by the digestion tank still contains more fine solid substances and is rich in a large amount of nitrogen and phosphorus elements, and the sewage needs to be filtered for many times during later treatment and also needs to be subjected to denitrification and dephosphorization processes, so that the cost for treating the domestic sewage is increased.

The utility model has the following contents:

an object of the utility model is to provide a reduce unpowered digestion tank of tiny solid matter and nitrogen, phosphorus compound in the sewage.

The utility model discloses by following technical scheme implement:

an unpowered digestion tank comprises a tank body buried below a frozen soil layer, wherein the tank body comprises a first tank body, a second tank body and a third tank body which are arranged side by side, the upper part of the first tank body is communicated with a water inlet pipe, the top of the first tank body is communicated with a sewage disposal port, and a well cover is buckled in the sewage disposal port; communicating pipes are respectively communicated between the first tank body and the second tank body and between the second tank body and the third tank body, breathing pipes communicated with the tops of the tank bodies are communicated on the communicating pipes in the first tank body, the second tank body and the third tank body, and filter screens are buckled at the top ends of the breathing pipes; cobblestones are filled in the third tank body, and a drain pipe is communicated with the lower portion of the third tank body.

Preferably, the suction pipe is arranged on the top of the third tank body, the bottom end of the suction pipe penetrates into the bottom end of the third tank body from the top end of the third tank body, and a sealing cover is buckled on the top of the suction pipe.

Preferably, the outlet of the water inlet pipe, the communicating pipe between the first tank body and the second tank body, and the pipe orifice of the communicating pipe between the second tank body and the third tank body are sequentially reduced.

The utility model has the advantages that: through setting up the first jar of body and the second jar of body, make sewage take place hydrolysis acidification reaction, decompose floater and macromolecular substance wherein, and through setting up the third jar of body, and pack cobblestone in the third jar of body, will be through the effect of the absorption of the tiny solid matter in the sewage of the first jar of body and the second jar of body hydrolysis acidification, nitrogen compound and phosphorus compound, can not contain a large amount of no solid matter in the sewage that guarantees to follow the drain pipe discharge, reduce the nitrogen in the sewage, the content of phosphorus compound, reduce the filtration number of times of the sewage treatment of discharge in the drain pipe, reduce the process cost that nitrogen, phosphorus compound handled.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

In the figure: the device comprises a tank body 1, a first tank body 2, a second tank body 3, a third tank body 4, a water inlet pipe 5, a dirt cleaning port 6, a well cover 7, a communicating pipe 8, a breathing pipe 9, a filter screen 10, cobblestones 11, a drain pipe 12, a suction pipe 13 and a sealing cover 14.

The specific implementation mode is as follows:

as shown in fig. 1, the unpowered digestion tank comprises a tank body 1 buried below a frozen soil layer, wherein the tank body 1 comprises a first tank body 2, a second tank body 3 and a third tank body 4 which are arranged side by side, the upper part of the first tank body 2 is communicated with a water inlet pipe 5, the top part of the first tank body 2 is communicated with a sewage cleaning port 6, a well cover 7 is buckled in the sewage cleaning port 6, and after sediment in the first tank body 2 reaches a certain height, the well cover 7 is opened to pump away approximately two thirds of sludge in the first tank body 2 from the sewage cleaning port 6; communicating pipes 8 are respectively communicated between the first tank body 2 and the second tank body 3 and between the second tank body 3 and the third tank body 4, the communicating pipes 8 in the first tank body 2, the second tank body 3 and the third tank body 4 are all communicated with breathing pipes 9 communicated with the top of the tank body 1, the breathing pipes 9 discharge gas generated in reaction, a filter screen 10 is buckled at the top end of the breathing pipes 9, and the filter screen 10 can prevent sundries on the ground from falling into the first tank body 2, the second tank body 3 and the third tank body 4 from the breathing pipes 9; cobblestones 11 are filled in the third tank 4, a drain pipe 12 is communicated with the lower part of the third tank 4, domestic sewage mixed with certain floaters and solid matters enters the first tank 2 from a water inlet pipe 5, the floaters float above the sewage in the first tank 2, the floaters and the mixed matters in the sewage are decomposed under the action of hydrolysis acidification, generated sludge is deposited at the bottom of the pool in the first tank 2, the sewage in the first tank 2 flows into the second tank 3 through a communicating pipe 8 after reaching a certain height, hydrolysis acidification reaction is also carried out in the second tank 3 to decompose macromolecular matters mixed in the sewage, the sewage in the second tank 3 flows into the third tank 4 from the communicating pipe 8 after reaching a certain height, and the cobblestones 11 in the third tank 4 can form a layer of biological oxidation film on the long-term flushing lower surface of the sewage and can adsorb fine solid matters, The nitrogen compound and the phosphorus compound can reduce the content of the nitrogen and the phosphorus compound in the water, and the water in the third tank body 4 is discharged from the water discharge pipe 12;

through setting up the first jar of body 2 and the second jar of body 3, make sewage take place hydrolysis acidification reaction, decompose floater and macromolecular substance among them, and through setting up the third jar of body 4, and pack cobblestone 11 in the third jar of body 4, will pass through the effect of tiny solid matter, nitrogen compound and phosphorus compound in the sewage after the hydrolysis acidification of the first jar of body 2 and the second jar of body 3, can not contain a large amount of no solid matter in the sewage that discharges from drain pipe 12, reduce the content of nitrogen, phosphorus compound in the sewage, reduce the filtration number of times of the sewage treatment of discharging in drain pipe 12, reduce the process cost that nitrogen, phosphorus compound handled.

The bottom end of the suction pipe 13 penetrates into the bottom end of the third tank 4 from the top end of the third tank 4, the top of the suction pipe 13 is buckled with a sealing cover 14, a biological oxidation film on the surface of the cobblestone 11 can fall off after long-term use, the biological oxidation film is deposited on the bottom of the third tank 4 and can be discharged from a drain pipe 12 after being accumulated in a large amount, and the filtering cost is increased; by arranging the suction pipe 13, the sealing cover 14 is opened after long-term use, and the falling biological oxidation film at the bottom of the third tank 4 is pumped away by using a water pump, so that the falling biological oxidation film is prevented from being discharged from the drain pipe 12.

The outlet of the water inlet pipe 5, the communicating pipe 8 between the first tank body 2 and the second tank body 3, and the pipe orifice of the communicating pipe 8 between the second tank body 3 and the third tank body 4 are sequentially reduced, so that the water can be discharged from the water discharge pipe 12 by means of the self gravity.

The working principle is as follows: domestic sewage mixed with certain floaters and solid matters enters the first tank body 2 from the water inlet pipe 5, the floaters float above sewage in the first tank body 2, the mixed substances in the floaters and the sewage are decomposed under the action of hydrolysis acidification, the generated sludge is deposited at the bottom of the pool in the first tank body 2, the sewage in the first tank body 2 flows into the second tank body 3 through the communicating pipe 8 after reaching a certain height, the hydrolysis acidification reaction also occurs in the second tank body 3 to decompose macromolecular substances mixed in the sewage, the sewage in the second tank body 3 flows into the third tank body 4 from the communicating pipe 8 after reaching a certain height, the cobblestones 11 in the third tank body 4 can form a layer of biological oxidation film on the long-term lower surface of the sewage, has the function of adsorbing fine solid matters, nitrogen compounds and phosphorus compounds, and can reduce the content of nitrogen and phosphorus compounds in the water, the water of the third tank 4 is drained from the drain pipe 12.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An unpowered digestion tank is characterized by comprising a tank body buried below a frozen soil layer, wherein the tank body comprises a first tank body, a second tank body and a third tank body which are arranged side by side, the upper part of the first tank body is communicated with a water inlet pipe, the top of the first tank body is communicated with a decontamination opening, and a well cover is buckled in the decontamination opening; communicating pipes are respectively communicated between the first tank body and the second tank body and between the second tank body and the third tank body, breathing pipes communicated with the tops of the tank bodies are communicated on the communicating pipes in the first tank body, the second tank body and the third tank body, and filter screens are buckled at the top ends of the breathing pipes; cobblestones are filled in the third tank body, and a drain pipe is communicated with the lower portion of the third tank body.

2. The unpowered digestion tank according to claim 1, further comprising a suction pipe, wherein the bottom end of the suction pipe penetrates from the top end of the third tank to the inside of the bottom end of the third tank, and a sealing cover is fastened to the top of the suction pipe.

3. The unpowered digestion tank according to any one of claims 1 or 2, wherein the outlet of the inlet pipe, the communication pipe between the first tank and the second tank, and the orifice of the communication pipe between the second tank and the third tank are sequentially lowered.