CN106365280A - Bubble oxygenation type dirt collecting system for bottom layer water body of aquaculture pond and dirt collecting method of system - Google Patents

Abstract

The invention relates to a sewage collection system with air bubbles in the bottom water body of a breeding pond, which includes a floating body, a sewage collection cover, a sewage collection sedimentator, a sewage suction pipe, and a self-priming pump; the sewage collection sedimentator has a conical structure with an upward opening The dirt collection cover has a conical structure with an opening downward, and is fixedly arranged above the dirt collection sedimentator, and has a certain gap with the dirt collection sedimentator; the bottom surface of the dirt collection cover is lower than the top surface of the dirt collection sedimentator, and the dirt collection The diameter of the bottom surface of the cover is larger than the top surface diameter of the sewage settling tank; the floating body makes the whole system float on the water surface; one end of the sewage suction pipe is inserted into the bottom position of the sewage settling tank, and the other end is connected to the external self-priming pump; An oxygen-increasing sand head with an external air pump is set under the sewage-collecting and precipitating device, and the aeration bubbles carry the dirt to float upward through the gap and sink into the sewage-collecting and precipitating container. Extraction; the top of the dirt collection cover has an opening for air bubbles to discharge.

Description

Bubble aeration type sewage collection system and sewage collection method for the bottom water body of aquaculture pond

technical field

The invention relates to a sewage collection system of aeration-increasing air bubbles in the bottom water body of an aquaculture pond, and belongs to the technical field of aeration-enhancement and sewage collection in aquaculture ponds.

Background technique

Pond aquaculture is the main form of aquaculture in my country. In view of the characteristics of high-density aquaculture, there are major problems in maintaining the quality of water bodies. Dissolved oxygen is a key factor in the energy cycle of pond materials. Since sunlight is mainly concentrated on the water surface, oxygen produced through algae photosynthesis is mainly concentrated on the surface layer, resulting in supersaturation of the surface water surface and insufficient dissolved oxygen content at the bottom under good sunshine conditions. Existing water wheel aerators, water cultivators, and wave generators mainly focus on the middle and upper layers of the water, and have little impact on the bottom of the water, resulting in limited ability to improve the water environment. The vast majority of fish, shrimp, and crab farming objects mainly live at the bottom of the water body. The low oxygen, ammonia nitrogen, suspended excrement, residual bait and other pollutants at the bottom of the water seriously affect their growth environment. The incidence of diseases is high, and the quality of the final product cannot be guaranteed. . Moreover, the key point to solve this problem is to improve the water quality at the bottom. Although the aeration and oxygenation method adopted by the existing bottom aeration technology can improve the dissolved oxygen in the water to a certain extent, it cannot clean up suspended excrement and residual bait. and other pollutants cannot improve the comprehensive water quality of the bottom water body, so it cannot provide help for the maintenance of high-density aquaculture water quality.

Contents of the invention

The technical problem to be solved by the present invention is: the existing pond aeration technology can improve the dissolved oxygen in local water bodies to a certain extent, but does not provide help for improving the comprehensive water quality of high-density culture pond water bodies.

The key to solving this problem is to improve the bottom water quality, collect and separate the main pollutants such as suspended excrement, residual bait, and water with high ammonia nitrogen content in a reasonable way, and accurately treat the water body with low energy consumption , Significantly improve the water quality of key parts of the pond. The present invention takes the following technical solutions:

A sewage collection system with air bubbles in the bottom water body of a culture pond, including a floating body 1, a sewage collection cover 2, a sewage collection sedimentator 3, a sewage suction pipe 10, and a self-priming pump 9; the sewage collection sedimentator 3 is open upward Conical surface structure; the sewage collection cover 2 is a conical surface structure with an opening downward, fixedly arranged above the sewage collection sedimentator 3, and has a certain gap with the sewage collection sedimentator 3; the bottom surface of the sewage collection cover 2 is lower than the sewage collection sedimentator 3, and the diameter of the bottom surface of the dirt collection cover 2 is greater than the diameter of the top surface of the dirt collection sedimentator 3; the floating body 1 makes the whole system float on the water surface; one end of the sewage suction pipe 10 is inserted into the bottom of the dirt collection sedimentator 3 position, the other end is connected to the external self-priming pump 9; the oxygen-increasing sand head 7 of the external air pump is arranged under the sewage-collecting sedimentator 3, and the aeration bubbles carry the dirt to float upward through the gap and sink into the sewage-collecting sediment In the container 3, the self-priming pump 9 pumps out the high-concentration sewage at the bottom of the dirt collecting and precipitating container 3; the top of the dirt collecting cover 2 has an opening for air bubbles to discharge.

When this technical solution was implemented, the cone angle of the dirt collection cover 2 would be conducive to the accumulation of air bubbles and polluted water body mixtures, and the top opening of the dirt collection cover 2 was used for the discharge of oxygen-increasing sand head bubbles; the cone angle of the dirt collection sedimentator 3 and Depth is sufficient for accumulation and deposition of contaminants for removal from the suction pipe. During the accumulation and deposition of pollutants, the air bubbles float up and separate from the polluted water body, and are discharged from the top of the sewage collection cover 2; the gap between the sewage collection cover 2 and the sewage collection sedimentator 3 must match the displacement of the self-priming pump 9 and the oxygenation The amount of foaming of the sand head is to meet the needs of the polluted water body to form a relatively stable microcirculation.

Further, the floating body 1 is ring-shaped, and is fixedly arranged outside the dirt collection cover 2 , and the dirt collection settler 3 is connected and fixed to the upper dirt collection cover 2 through the connecting piece 4 .

Furthermore, a plurality of lead pendants 6 are uniformly hung on the outer periphery of the floating body 1 through ropes 5 .

Furthermore, a counterweight 8 is fixedly arranged at the bottom of the dirt collecting and precipitating container 3 .

Still further, the dirt suction pipe 10 passes through the dirt collection cover 2 and the dirt collection sedimentator 3 sequentially from top to bottom, and the end is located above the counterweight 8 immediately adjacent to the counterweight 8 .

Further, a plurality of oxygen-increasing sand heads 7 are evenly arranged under the dirt collection and precipitator 3 .

A sewage collection method of the above-mentioned sewage collection system with air bubbles and aeration at the bottom of the culture pond, wherein the self-priming pump 9 pumps out the high-concentration sewage at the bottom of the sewage collection sedimentator 3, and after sewage treatment, it is then introduced into the culture pond to form Sewage treatment cycle.

Further, a plurality of aeration-increasing sewage collection systems for the bottom water of the aquaculture ponds are provided in the aquaculture pond, and the aeration-increasing sewage collection systems for the bottom water of the aquaculture ponds correspond to one self-priming pump.

The beneficial effects of the present invention are:

1) Aeration is carried out through the oxygen-increasing sand head, thereby increasing the oxygen content at the bottom of the pond, and allowing the upper and lower water layers in the pond to exchange water.

2) Aeration is carried out through the oxygen-increasing sand head, and the suspended excrement and other pollutants at the bottom of the pond are driven upwards, so that they pass through the gap between the sewage collection sedimentator and the sewage collection cover, enter the sewage collection sedimentator, and It settles slowly in the sewage-collecting precipitator, and then the sewage is sucked away by the self-priming pump, which ingeniously realizes the function of sewage discharge.

3) The oxygen-dissolving capacity of the bottom water body is greatly improved through the improvement of water quality.

4) Collect and separate main pollutants such as suspended excrement, residual bait, and water with high ammonia nitrogen content in a reasonable way, and accurately treat water with low energy consumption, significantly improving the water quality of key parts of the pond.

5) The structure is simple, and the counterweight can maintain the stability of the sewage collection and sedimentation device in the process of water flow.

6) It is economical and can be used in large-scale aquaculture ponds with low cost.

7) The exchange volume of sewage water is small, which can effectively improve the environment of aquaculture water.

Description of drawings

Fig. 1 is the front view of the sewage collection system of the present invention with air bubbles and aeration in the bottom water body of the aquaculture pond.

Fig. 2 is a three-dimensional perspective view of the present invention's aeration-enhancing air bubble sewage collection system in the bottom water body of the aquaculture pond.

In the figure, 1. Floating body, 2. Dirt collection cover, 3. Dirt collection sedimentator, 4. Connector, 5. Rope, 6. Lead pendant, 7. Oxygenation sand head, 8. Counterweight, 9. Self-contained Suction pump, 10. sewage suction pipe, 11. sewage suction pipe fixing piece.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Referring to Fig. 1-2, a sewage collection system of air bubble aeration type at the bottom of a culture pond, comprising a floating body 1, a sewage collection cover 2, a sewage collection sedimentator 3, a sewage suction pipe 10, and a self-priming pump 9; The container 3 has a conical surface structure with an upward opening; the sewage collection cover 2 has a conical surface structure with an opening downward, and is fixedly arranged above the sewage collection sedimentator 3, and has a certain gap with the sewage collection sedimentator 3; the bottom surface of the sewage collection cover 2 It is lower than the top surface of the dirt-collecting sedimentator 3, and the diameter of the bottom surface of the dirt-collecting cover 2 is greater than the diameter of the top surface of the dirt-collecting sedimentator 3; the floating body 1 makes the whole system float on the water surface; one end of the sewage suction pipe 10 is inserted into At the bottom of the dirt collecting and precipitating device 3, the other end is connected to the external self-priming pump 9; an oxygen-increasing sand head 7 connected to an external air pump is arranged under the dirt collecting and precipitating device 3, and the aeration bubbles carry the dirt and float upward through the gap And sink into the dirt-collecting precipitator 3, the self-priming pump 9 will pump out the high-concentration sewage at the bottom of the dirt-collecting-settler 3; the top of the dirt-collecting cover 2 has an opening for air bubbles to discharge.

Referring to Figures 1-2, the floating body 1 is in the form of a ring, and is fixedly arranged outside the dirt collection cover 2, and the dirt collection and settler 3 is connected and fixed to the dirt collection cover 2 above through the connecting piece 4.

Referring to Figures 1-2, a plurality of lead pendants 6 are evenly hung on the outer periphery of the floating body 1 through ropes 5 .

Referring to Figures 1-2, a counterweight 8 is fixedly arranged at the bottom of the dirt collecting and precipitating container 3 .

Referring to FIG. 1 , the dirt suction pipe 10 passes through the dirt collection cover 2 and the dirt collection sedimentator 3 sequentially from top to bottom, and the end is located above the counterweight 8 immediately adjacent to the counterweight 8 .

A plurality of oxygen-increasing sand heads 7 are evenly arranged under the dirt collecting and precipitating device 3 .

A sewage collection method of the above-mentioned sewage collection system with air bubbles and aeration at the bottom of the culture pond, wherein the self-priming pump 9 pumps out the high-concentration sewage at the bottom of the sewage collection sedimentator 3, and after sewage treatment, it is then introduced into the culture pond to form Sewage treatment cycle.

A plurality of air bubble aeration sewage collection systems at the bottom of the aquaculture ponds are set in the aquaculture pond, and the multiple aquaculture pond bottom water air bubble aeration sewage collection systems correspond to one self-priming pump.

During implementation, the cone angle of the dirt collection cover 2 will be conducive to the accumulation of air bubbles and polluted water body mixtures, and the top opening of the dirt collection cover 2 is used for the discharge of oxygen-increasing sand head bubbles; the cone angle and depth of the dirt collection sedimentator 3 can satisfy Accumulation and deposition of contaminants for removal from the suction pipe. During the accumulation and deposition of pollutants, the air bubbles float up and separate from the polluted water body, and are discharged from the top of the sewage collection cover 2; the gap between the sewage collection cover 2 and the sewage collection sedimentator 3 must match the displacement of the self-priming pump 9 and the oxygenation The amount of foaming of the sand head is to meet the needs of the polluted water body to form a relatively stable microcirculation.

The sewage collection system designed in the present invention is mainly suitable for the cultivation of the bottom air bubble oxygenation method, and the up and down convection of the water body formed by the bottom oxygenation bubbles is used to collect the ammonia nitrogen and suspended matter in the water to a specific area for centralized discharge. The characteristics of less exchange volume can effectively improve the environment of aquaculture water.

Basic principle: The air bubbles discharged from the oxygen-increasing sand head 7 will carry the polluted water body near the sand head to float up, and the suspended solids and ammonia nitrogen in the water will float up and enter the sewage collection sedimentator 3 through the diversion of the sewage cover 2, and the air bubbles in the water body will flow from The top opening of the sewage collection cover 2 is discharged, and the sewage suction pipe 10 discharges the polluted water body gathered in the sewage collection precipitator 3 under the action of the self-priming pump 9, and a small amount of polluted water body discharged is purified and then flows back into the culture pond to achieve The purpose of reducing pollutants such as ammonia nitrogen and suspended solids in aquaculture water. The counterweight 8 in the system can maintain the stability of the dirt collection and sedimentation tank during the flow of the water body.

Claims (8)

1. a kind of cultivating pool bottom water body bubble aeration type dirt collection system it is characterised in that:

Including buoyancy aid (1), dirt collection cover (2), dirt collection depositor (3), dirt sucking tube (10), self priming pump (9)；

Described dirt collection depositor (3) is in the cone structure of opening upwards；Dirt collection cover (2) is in the cone structure that Open Side Down, fixing It is arranged on the top of dirt collection depositor (3), and with dirt collection depositor (3), there is certain interval；

Dirt collection cover (2) bottom surface is less than the top surface of dirt collection depositor (3), and the basal diameter of dirt collection cover (2) is more than dirt collection depositor (3) top surface diameter；

Described buoyancy aid (1) makes whole system swim on the water surface；

Dirt collection depositor (3) bottom position is inserted in described dirt sucking tube (10) one end, and the other end is connected with outside self priming pump (9)；

Oxygen supplement sand head (7) of external air pump is set below described dirt collection depositor (3), and aeration bubbles carry dirt and float upwards to be worn Cross described gap and sink in dirt collection depositor (3), the sewage of dirt collection depositor (3) bottom high concentration is extracted out by self priming pump (9)；

Described dirt collection cover (2) top has the opening discharged for bubble.

2. cultivating pool bottom water body bubble aeration type dirt collection system as claimed in claim 1 it is characterised in that: described buoyancy aid (1) ringwise, it is fixedly installed on dirt collection cover (2) outside, dirt collection depositor (3) passes through the dirt collection cover (2) of connector (4) and top It is connected.

3. cultivating pool bottom water body bubble aeration type dirt collection system as claimed in claim 1 or 2 it is characterised in that: described Buoyancy aid (1) outside uniformly hangs multiple plummets (6) by rope (5).

4. cultivating pool bottom water body bubble aeration type dirt collection system as claimed in claim 1 or 2 it is characterised in that: described Dirt collection depositor (3) bottom is fixedly installed balancing weight (8).

5. cultivating pool bottom water body bubble aeration type dirt collection system as claimed in claim 4 it is characterised in that: described soil pick-up Pipe (10) sequentially passes through dirt collection cover (2), dirt collection depositor (3) from top to bottom, and end is located above balancing weight (8) and is close to balancing weight (8) position.

6. cultivating pool bottom water body bubble aeration type dirt collection system as claimed in claim 4 it is characterised in that: described dirt collection It is uniformly arranged multiple oxygen supplement sand head (7) below depositor (3).

7. the dirt collection method of cultivating pool bottom water body bubble aeration type dirt collection system as claimed in claim 1, its feature exists In: after the sewage of dirt collection depositor (3) bottom high concentration is extracted out by described self priming pump (9), through sewage disposal, then import cultivation Pond, forms sewage disposal circulation.

8. the dirt collection method of cultivating pool bottom water body bubble aeration type dirt collection system as claimed in claim 6, its feature exists In: multiple described cultivating pool bottom water body bubble aeration type dirt collection systems, multiple cultivating pools are set in described cultivating pool Bottom water body bubble aeration type dirt collection system corresponds to a self priming pump.