Inclined tube precipitation device

Abstract

The utility model relates to the technical field of sewage treatment, and discloses an inclined tube sedimentation device which comprises a tail water treatment box, and the interior of the tail water treatment box is divided into an inclined tube sedimentation area, a nitrifying bacteria culture area and an oxygenation and pollution discharge area through two second partition plates. According to the tail water treatment device disclosed by the utility model, the two inclined tube settling zones and the nitrifying bacteria culture zone in the tail water treatment box are matched for use, the inclined tube settling zones are used for solid-liquid separation, sediments in tail water are effectively cleaned, then supernate enters the nitrifying bacteria culture zone, and the nitrifying bacteria culture zone is used for nitrifying bacteria culture; the cultured nitrifying bacteria can convert ammonia nitrogen and other organic nitrogen in tail water into nitrate and other inorganic nitrogen, harmful substances in water are reduced, the water quality is improved, the integrated sewage treatment mode solves the problem that pollutants cannot be thoroughly removed by a single treatment method, and the sewage treatment efficiency of the aquaculture pond is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a tail water treatment device for aquaculture ponds, in particular to an inclined tube sedimentation device. Background Art

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or reuse. There are many methods and devices for wastewater treatment. For aquaculture pond tailwater treatment, inclined tube sedimentation devices can be used to remove pollutants from the tailwater.

[0003] Currently, known co-pipe sedimentation systems consist of a clear water area, an inclined plate area, a water distribution area, and a sludge area. These inclined tube sedimentation tanks consist of tubular components placed at a predetermined angle (typically around 60°) to the horizontal. Water can flow downward or upward, causing particles to settle to the bottom of the inclined tubes and then slide down automatically.

[0004] However, most inclined tube sedimentation devices are used for industrial tailwater treatment and do not have the ability to cultivate nitrifying bacteria. There are few reports on the combined treatment of nitrifying bacteria and co-pipe sedimentation in pond aquaculture.

[0005] In order to improve the treatment efficiency of aquaculture pond wastewater and improve the water quality of the pond, we need to propose an inclined tube sedimentation device. Utility Model Content

[0006] The purpose of the utility model is to provide an inclined tube sedimentation device. Through the coordinated use of two inclined tube sedimentation areas and a nitrifying bacteria culture area in a tailwater treatment tank, the inclined tube sedimentation area is used for solid-liquid separation to effectively clean up the sediment in the tailwater. Then, the supernatant enters the nitrifying bacteria culture area. The cultured nitrifying bacteria can convert organic nitrogen such as ammonia nitrogen in the tailwater into inorganic nitrogen such as nitrate, reduce harmful substances in the water body, and improve water quality. This integrated sewage treatment method solves the problem that a single treatment method may not be able to completely remove pollutants, and improves the treatment efficiency of aquaculture pond sewage, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: an inclined tube sedimentation device, comprising a tailwater treatment tank, the interior of the tailwater treatment tank being divided into an inclined tube sedimentation area, a nitrifying bacteria culture area, and an oxygenated sewage discharge area by two second partitions, the interior of the inclined tube sedimentation area being divided into an inclined tube sedimentation area 1 and an inclined tube sedimentation area 2 by a first partition, inclined tube sedimentation area 1 and inclined tube sedimentation area 2 both being installed with inclined tubes, a first mounting groove being provided at the inner bottom of the tailwater treatment tank, a second mounting groove being provided at the inner bottom of the first mounting groove, and a mud discharge mechanism being installed in the first mounting groove and the second mounting groove and being located directly below the inclined tube sedimentation area;

[0008] The mud discharge mechanism includes a mud discharge funnel located inside the first installation groove, the bottom of the mud discharge funnel is connected to a mud discharge pipe located inside the second installation groove, a cleaning component for cleaning residual sludge is installed on the upper end of the inner wall of the mud discharge funnel, and a cleaning pipeline connected to the cleaning component is provided on the outer edge of the mud discharge funnel.

[0009] Preferably, the cleaning assembly comprises a hollow plate fixed on the inner wall of the mud discharge funnel, and a plurality of nozzles are connected to the bottom of the hollow plate, and the nozzles are arranged at an angle.

[0010] Preferably, the cleaning pipeline includes a first pipe connected to the hollow plate, a U-shaped second pipe is connected to the outer wall of the first pipe, a water pump is installed at one end of the second pipe, and an air pump is installed at the other end of the second pipe.

[0011] Preferably, a nitrifying bacteria culture mechanism is provided inside the nitrifying bacteria culture area, and the nitrifying bacteria culture mechanism comprises a plurality of stacked support plates, and culture carriers for culturing nitrifying bacteria are provided on the support plates.

[0012] Preferably, a support column is installed between two adjacent support plates, and slots are provided on the upper and lower surfaces of the support plates. The top of the support column is inserted into the slot at the bottom of the upper support plate, and the bottom of the support column is inserted into the slot at the top of the lower support plate.

[0013] Preferably, the side of the support plate is connected to a limiting strip, and limiting grooves are provided on opposite sides of the two second partitions, and the limiting strips are installed inside the limiting grooves.

[0014] Preferably, a water inlet and a drain are respectively provided on two opposite side walls of the tailwater treatment tank, the water inlet is located inside the inclined tube sedimentation area 1, and the drain is located inside the oxygenation and sewage discharge area.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model uses two inclined tube sedimentation areas and a nitrifying bacteria culture area in the tail water treatment box in conjunction with each other. The inclined tube sedimentation area is used for solid-liquid separation to effectively clean up the sediment in the tail water. Then, the supernatant enters the nitrifying bacteria culture area. The cultured nitrifying bacteria can convert organic nitrogen such as ammonia nitrogen in the tail water into inorganic nitrogen such as nitrate, reducing harmful substances in the water body and improving water quality. This integrated sewage treatment method solves the problem that a single treatment method may not be able to completely remove pollutants, and improves the treatment efficiency of sewage in aquaculture ponds. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic structural diagram of the oblique tube of the utility model;

[0019] Figure 3 This is a structural diagram of the tailwater treatment tank of the utility model;

[0020] Figure 4 This is a structural diagram of the mud discharge mechanism of the utility model;

[0021] Figure 5 This is an exploded view of the mud discharge mechanism of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the nitrifying bacteria cultivation mechanism of the utility model;

[0023] Figure 7 It is a cross-sectional view of the tailwater treatment tank of the utility model.

[0024] In the figure: 1. Tailwater treatment tank; 2. Water inlet; 3. Drain outlet; 4. First partition; 5. Second partition; 6. Inclined tube sedimentation area 1; 7. Inclined tube sedimentation area 2; 8. Nitrifying bacteria culture area; 9. Oxygenation sewage discharge area; 10. Inclined tube; 11. Nitrifying bacteria culture mechanism; 111. Support plate; 112. Slot; 113. Culture carrier; 114. Support column; 115. Limiting bar; 12. Mud discharge mechanism; 121. Mud discharge funnel; 122. Cleaning component; 1221. Hollow plate; 1222. Nozzle; 123. Cleaning pipeline; 124. Mud discharge pipe; 1231. First pipeline; 1232. Second pipeline; 13. Limiting groove; 14. First installation groove; 15. Second installation groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-7The utility model provides a technical solution: an inclined tube sedimentation device, comprising a tailwater treatment tank 1, the interior of the tailwater treatment tank 1 is divided into an inclined tube sedimentation area, a nitrifying bacteria culture area 8 and an oxygenated sewage discharge area 9 by two second partitions 5, the interior of the inclined tube sedimentation area is divided into an inclined tube sedimentation area 1 6 and an inclined tube sedimentation area 2 7 by a first partition 4, and an inclined tube sedimentation area 1 6 and an inclined tube sedimentation area 2 7 are both installed with an inclined tube 10, a first installation groove 14 is provided at the inner bottom of the tailwater treatment tank 1, a second installation groove 15 is provided at the inner bottom of the first installation groove 14, and a mud discharge mechanism 12 is installed in the first installation groove 14 and the second installation groove 15, which is located directly below the inclined tube sedimentation area; the inclined tube sedimentation area can separate the solid and liquid of the pond tailwater, the supernatant flows into the next treatment area (nitrifying bacteria culture area 8), and the precipitated sludge enters the mud discharge mechanism 12;

[0027] The four treatment areas in the tailwater treatment tank 1 are, from right to left, the inclined tube sedimentation area 1 6, the inclined tube sedimentation area 2 7, the nitrifying bacteria culture area 8 and the oxygenated sewage discharge area 9.

[0028] The mud discharge mechanism 12 includes a mud discharge funnel 121 located inside the first mounting groove 14. The bottom of the mud discharge funnel 121 is connected to a mud discharge pipe 124 located inside the second mounting groove 15, so as to facilitate the discharge of sludge to the outside or recycling. A cleaning component 122 for cleaning residual sludge is installed at the upper end of the inner wall of the mud discharge funnel 121. The cleaning component 122 is used to clean the sludge that is not discharged cleanly on the inner wall of the mud discharge funnel 121. The outer edge of the mud discharge funnel 121 is provided with a cleaning pipeline 123 connected to the cleaning component 122. The cleaning pipeline 123 is used to transport water and gas to the cleaning component 122.

[0029] The cleaning assembly 122 includes a hollow plate 1221 fixed on the inner wall of the mud discharge funnel 121. The bottom of the hollow plate 1221 is connected to a plurality of nozzles 1222, and the nozzles 1222 are arranged at an angle.

[0030] A plurality of nozzles 1222 are arranged at equal intervals, and the nozzles 1222 are arranged at an angle, which can enhance the stripping effect of the sludge remaining on the inner wall of the sludge discharge funnel 121 .

[0031] The cleaning pipeline 123 includes a first pipe 1231 connected to the hollow plate 1221. A U-shaped second pipe 1232 is connected to the outer wall of the first pipe 1231. A water pump is installed at one end of the second pipe 1232, and an air pump is installed at the other end of the second pipe 1232. It is necessary to explain that the tailwater treatment tank 1 also has a pipe installation cavity (not shown) for the first pipe 1231 and the second pipe 1232 to pass through. Specifically, the pipe installation cavity is located at the upper end of the outer periphery of the first installation groove 14. One end of the second pipe 1232 passes through the tailwater treatment tank 1 and is located outside the tailwater treatment tank 1 to facilitate connection to a water source and an air source. One end of the second pipe 1232 is connected to the water source (water tank) to supply water to the cleaning assembly 122 to clean the inner wall of the sludge discharge funnel 121. The other end of the second pipe 1232 is used to supply air to the cleaning assembly 122. The airflow blows against the inner wall of the sludge discharge funnel 121, blowing off any remaining sludge and a small amount of residual water.

[0032] A nitrifying bacteria culture mechanism 11 is provided inside the nitrifying bacteria culture area 8. The nitrifying bacteria culture mechanism 11 comprises a plurality of stacked support plates 111. Culture carriers 113 for culturing nitrifying bacteria are provided on the support plates 111. The culture carriers 113 are made of shells.

[0033] A support column 114 is installed between two adjacent support plates 111. Slots 112 are provided on the upper and lower surfaces of the support plates 111. The top of the support column 114 is inserted into the slot 112 at the bottom of the upper support plate 111, and the bottom of the support column 114 is inserted into the slot 112 at the top of the lower support plate 111. This facilitates increasing the number of support plates 111 according to actual conditions based on the height of the tailwater treatment tank 1.

[0034] The side of the support plate 111 is connected to a limiting strip 115 , and the two second partitions 5 are provided with limiting grooves 13 on opposite sides. The limiting strip 115 is installed inside the limiting groove 13 to ensure the stability of the installation of the nitrifying bacteria culture mechanism 11 .

[0035] An inlet 2 and a drain 3 are respectively provided on the opposite side walls of the tailwater treatment tank 1. The inlet 2 is located inside the inclined tube sedimentation area 6, and the drain 3 is located inside the oxygenation and sewage discharge area 9.

[0036] During use, the sewage from the aquaculture pond is pumped into the interior of the tailwater treatment tank 1 from the water inlet 2, and the inclined tube 10 in the inclined tube sedimentation area performs solid-liquid separation on the tailwater. The sediment in the tailwater falls on the surface of the inclined tube 10, slides downward along the inclined surface of the inclined tube 10, and gathers in the mud discharge mechanism 12. The supernatant after solid-liquid separation treatment flows to the nitrifying bacteria culture mechanism 11 in the nitrifying bacteria culture area 8. In the nitrifying bacteria culture mechanism 11, nitrifying bacteria are cultured using shells as culture carriers 113. The nitrifying bacteria can convert organic nitrogen such as ammonia nitrogen in the sewage into inorganic nitrogen such as nitrate, thereby reducing harmful substances in the water body and improving water quality. Then the tailwater flows into the aeration sewage discharge area 9 for aeration sewage discharge treatment.

[0037] Afterwards, the treated tail water is discharged from the drain port 3, and the precipitated matter is removed through the mud discharge pipe. To ensure that the mud discharge funnel 121 in the mud discharge mechanism 12 is neat and the sludge is completely discharged, the mud discharge funnel 121 needs to be cleaned. First, the water pump is turned on to pump water from the water source (not shown in the figure) into the first pipe 1231 through the second pipe 1232 and into the hollow plate 1221 in the cleaning assembly 122. The water is then sprayed onto the inner wall of the mud discharge funnel 121 through the nozzle 1222 to separate and discharge the remaining sludge.

[0038] Finally, turn on the air pump to draw external air into the first pipe 1231 through the second pipe 1232 and send it into the hollow plate 1221 in the cleaning component 122, and blow the air flow toward the inner wall of the mud discharge funnel 121 through the nozzle 1222 to blow off the remaining sludge and a small amount of residual moisture.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An inclined tube sedimentation device, characterized in that: The invention comprises a tailwater treatment tank (1), wherein the interior of the tailwater treatment tank (1) is divided into an inclined tube sedimentation area, a nitrifying bacteria culture area (8) and an oxygenated sewage discharge area (9) by two second partitions (5), the interior of the inclined tube sedimentation area is divided into an inclined tube sedimentation area 1 (6) and an inclined tube sedimentation area 2 (7) by a first partition (4), and inclined tube sedimentation area 1 (6) and inclined tube sedimentation area 2 (7) are both installed with inclined tubes (10), the inner bottom of the tailwater treatment tank (1) is provided with a first installation groove (14), the inner bottom of the first installation groove (14) is provided with a second installation groove (15), and the interiors of the first installation groove (14) and the second installation groove (15) are provided with a mud discharge mechanism (12) located directly below the inclined tube sedimentation area; The mud discharge mechanism (12) comprises a mud discharge funnel (121) located inside the first installation groove (14); the bottom of the mud discharge funnel (121) is connected to a mud discharge pipe (124) located inside the second installation groove (15); a cleaning component (122) for cleaning residual mud is installed on the upper end of the inner wall of the mud discharge funnel (121); and a cleaning pipeline (123) communicating with the cleaning component (122) is provided on the outer edge of the mud discharge funnel (121).

2. The inclined tube sedimentation device according to claim 1, characterized in that: The cleaning assembly (122) comprises a hollow plate (1221) fixed on the inner wall of the mud discharge funnel (121); a plurality of nozzles (1222) are connected to the bottom of the hollow plate (1221); and the nozzles (1222) are arranged at an angle.

3. The inclined tube sedimentation device according to claim 2, characterized in that: The cleaning pipeline (123) comprises a first pipe (1231) in communication with the hollow plate (1221); a U-shaped second pipe (1232) is connected to the outer wall of the first pipe (1231); a water pump is installed at one end of the second pipe (1232); and an air pump is installed at the other end of the second pipe (1232).

4. The inclined tube sedimentation device according to claim 1, characterized in that: A nitrifying bacteria cultivation mechanism (11) is provided inside the nitrifying bacteria cultivation area (8), and the nitrifying bacteria cultivation mechanism (11) comprises a plurality of stacked support plates (111), and a cultivation carrier (113) for cultivating nitrifying bacteria is provided on the support plates (111).

5. The inclined tube sedimentation device according to claim 4, characterized in that: A support column (114) is installed between two adjacent support plates (111), and slots (112) are provided on the upper and lower surfaces of the support plates (111). The top of the support column (114) is inserted into the slot (112) at the bottom of the upper support plate (111), and the bottom of the support column (114) is inserted into the slot (112) at the top of the lower support plate (111).

6. The inclined tube sedimentation device according to claim 5, characterized in that: The side of the support plate (111) is connected to a limiting strip (115), and limiting grooves (13) are provided on opposite sides of the two second partitions (5), and the limiting strips (115) are installed inside the limiting grooves (13).

7. The inclined tube sedimentation device according to claim 1, characterized in that: A water inlet (2) and a water outlet (3) are respectively provided on two opposite side walls of the tailwater treatment tank (1). The water inlet (2) is located inside the inclined tube sedimentation area (6), and the water outlet (3) is located inside the oxygenation and sewage discharge area (9).

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