Automatic sewage fine particle collection device and system

Abstract

The present invention discloses an automated sewage fine particle collection device, characterized in that it comprises a frame capable of floating on a sewage pool; a partition tube for dividing the frame into a plurality of areas is provided in the frame; a sewage collecting bag is hung in each area separated by the partition tube in the frame; the bottom of the sewage collecting bag has a conical structure and is made of PVC waterproof canvas. As another aspect of the present invention, a sewage fine particle collection system is also provided, which comprises the above-mentioned collection device, and also comprises a residual bait and feces collection and fermentation tank and an algae seed expansion raceway tank. The automated sewage fine particle collection device can effectively collect fine particles such as feces residues, and the system can make full use of the collected feces residues, and can also enable water quality to be reused and meet discharge standards. The above-mentioned collection device and system are suitable for the treatment of eel breeding tailwater, and are also suitable for the suction treatment of riverbed sediments in eutrophic water bodies.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to an automatic sewage fine particle collection device and system. Background Art

[0002] After research, it was found that there are still many problems in sewage treatment. For example, eel farming feed is made of ultra-fine crushed particles through a synthetic process. The excrement after eel digestion will quickly decompose and melt into fine particles larger than 500 mesh after being discharged into the water. In conventional treatment, breeding companies use 300-mesh membrane filtration, but the effect is negligible and difficult to extract. However, the cost of extracting excrement with a higher mesh number is not supported. Many technical bottlenecks have caused the eel tail water to be in a direct discharge state. The tail water discharge has caused the water quality monitoring of the river section to become a Class V water body. Under the major environmental protection policies, the eel farming industry is facing an unprecedented survival crisis. The collection of fecal residues in the tail water has become an imminent technical problem for treatment. Summary of the invention

[0003] In view of the defects in the prior art, the present invention provides an automated sewage fine particle collection device and system; the automated sewage fine particle collection device can effectively collect fine particles such as fecal residues, the system can make full use of the collected fecal residues, and can also enable water quality to be reused and meet discharge standards.

[0004] An automated sewage fine particle collection device includes a frame capable of floating on a sewage pool;

[0005] The frame is provided with a partition tube for partitioning the frame into a plurality of areas;

[0006] In the frame, a dirt collection bag is hung in each area separated by the separation pipe;

[0007] The bottom of the sewage collecting bag has a conical structure and is made of PVC waterproof canvas.

[0008] Furthermore, the frame is surrounded by PE pipes.

[0009] Furthermore, the separation tube is made of PE material.

[0010] The above-mentioned automated sewage fine particle collection device uses a PE pipe, a material with a density lower than that of water, to surround a frame, and a conical-bottomed sewage collecting bag made of PVC waterproof canvas is arranged on the frame to precipitate fecal and sewage residues. Since it is made of a material with a density lower than that of water, the frame and the sewage collecting bag can float in the sewage pool, and after separation, the fecal and sewage residues are deposited at the conical bottom of each sewage collecting bag for easy collection.

[0011] Furthermore, the partition tube is connected to the frame, and the top height of the partition tube is lower than the top height of the frame.

[0012] The frame can be a rectangular frame, and the partition pipe is set in the rectangular frame to divide the rectangular frame into several areas, and a sewage collecting bag is set in each area; in order to enable the upper tail water of the sewage pool to flow from one end of the frame to the other end, the height of the outer frame is set to be higher than the height of the partition pipe. The partition pipe is equivalent to an overflow dam, and the tail water flows into the adjacent sewage collecting bag through the overflow dam.

[0013] Possible implementations include: the partition tube uses a PE tube with an outer diameter of 50 mm, the frame uses a PE tube with a diameter of 110 mm, and the height of the frame is 60 mm higher than the partition tube, provided that the bottom of the partition tube is at the same height as the bottom of the frame.

[0014] In the above-mentioned automated sewage fine particle collection device, the tail water is first discharged into the first sewage collecting bag on the left through the tail water discharge pipe, and then flows to the right through the overflow dam into the next sewage collecting bag, where it is precipitated, and the upper tail water overflows after passing through the last sewage collecting bag.

[0015] Furthermore, a suction pipe is provided in the waste bag, and the bottom of the suction pipe goes deep into the bottom conical structure of the waste bag. In order to clean the feces and sewage residues in the waste bag in time, the suction pipe is used to go deep into the part where the feces and sewage residues are deposited for suction, and the sewage discharge effect is better.

[0016] Preferably, in order to avoid clogging, a technical solution that can be selected is that the bottom end and / or the bottom side of the suction pipe are provided with a plurality of microporous structures. The bottom of the sewage collection bag is conical, and the feces and sewage residues are deposited there. A suction pipe made of 50mm PE material can be used for suction. In order to prevent clogging, a small hole can be opened at the bottom of the suction pipe, and the hole diameter is larger than the feces and sewage residues.

[0017] Furthermore, at least one suction pipe is provided in each of the waste collection bags, and all the suction pipes converge into a suction main pipe, the suction main pipe is connected to a suction pump, the inlet of the suction pump is connected to the suction main pipe, and the outlet of the suction pump discharges feces and sewage residues. The suction pump is a self-priming pump.

[0018] Preferably, each of the suction pipes is provided with a solenoid valve, and all of the solenoid valves are connected to a programmable controller.

[0019] In application, it can be selected that the suction pump adopts a self-priming pump with a power of 6KW; 50 sewage collecting bags are tied to a frame composed of PE pipes and arranged in a row, a suction pipe is set in each sewage collecting bag, and all the suction pipes are individually provided with a solenoid valve, and then converge into a suction main pipe; each solenoid valve is connected to the programmable logic controller in the control cabinet through a control line; when the suction pump is started, the controller can control the opening and closing of 50 solenoid valves according to a preset program (different solenoid valves can be opened in time), and the solenoid valves can be opened in a cycle to control the suction, so as to achieve the timely and quantitative discharge of feces and sewage residues from the sewage collecting bags, ensuring that the residual bait and feces of the eel tail water are quickly collected as soon as they leave the fish body, so as to achieve the cleanliness of the water in the collection pool.

[0020] As another aspect of the present invention, a sewage fine particle collection system is also provided, which includes any one of the above-mentioned automated sewage fine particle collection devices, and the collection system also includes a leftover bait and feces collection and fermentation tank and an algae seed expansion raceway tank; the outlet of the suction pump is located above the leftover bait and feces collection and fermentation tank, and discharges feces residues into the leftover bait and feces collection and fermentation tank.

[0021] Furthermore, the residual bait and feces collection and fermentation tank is divided into a plurality of boxes, and the biogas slurry after fermentation of feces residues in the residual bait and feces collection and fermentation tank is pumped into the algae seed expansion raceway pool through a first lifting pump.

[0022] Preferably, a second lifting pump is provided in the algae species expansion raceway pool, and the second lifting pump directionally transports the mature green algae expanded in the algae species expansion raceway pool to the automated pipe network type pearl oyster supply and feeding system for precise targeted drip irrigation feeding of pearl oysters.

[0023] The present invention solves the technical problem that it is difficult to treat fine-grained feces and sewage residues in the prior art, and utilizes the fine-grained feces and sewage residues to expand the cultivation of green algae and cultivate pearl oysters, and can also make the tail water meet the discharge standards, which is a technical means to achieve multiple goals at one stroke. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0025] Figure 1 A schematic diagram of a sewage fine particle collection system provided by an embodiment of the present invention;.

[0026] The following are the descriptions of the reference numerals:

[0027] 1. Frame; 2. Partition pipe; 3. Waste collection bag; 4. Conical structure; 5. Suction pipe; 6. Microporous structure; 7. Suction main pipe; 8. Suction pump; 9. Solenoid valve; 10. Leftover bait and feces collection and fermentation tank; 11. Algae seed expansion raceway pool; 12. First lifting pump; 13. Tail water discharge pipe; 14. Second lifting pump. DETAILED DESCRIPTION

[0028] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0029] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0030] As one aspect of the present invention, there is provided an automated sewage fine particle collection device, such as Figure 1 The part of the structure of the sewage fine particle collection system in FIG. 1 includes a frame 1 capable of floating on the sewage pool;

[0031] The frame 1 is provided with a partition tube 2 for partitioning the frame 1 into a plurality of areas;

[0032] In the frame 1, a dirt collection bag 3 is hung in each area separated by the separation tube 2;

[0033] The bottom of the dirt collecting bag 3 has a conical structure 4 made of PVC waterproof canvas.

[0034] In the above embodiment, it can be improved or preferably, the frame 1 is surrounded by a PE tube.

[0035] In the above embodiment, it can be improved or preferred that the separation tube 2 is made of PE material.

[0036] The above-mentioned automated sewage fine particle collection device uses a PE pipe, a material with a density lower than that of water, to surround a frame 1, and a conical-bottomed sewage collecting bag 3 made of PVC waterproof canvas is arranged on the frame 1 to precipitate fecal and sewage residues; because they are made of a material with a density lower than that of water, the frame 1 and the sewage collecting bag 3 can float in the sewage pool, and after separation, the fecal and sewage residues are deposited at the conical bottom of each sewage collecting bag 3 for easy collection.

[0037] In the above embodiment, it can be improved or preferred that the partition tube 2 is connected to the frame 1 , and the top height of the partition tube 2 is lower than the top height of the frame 1 .

[0038] The frame 1 can be a rectangular frame 1, and the partition pipe 2 is arranged in the rectangular frame 1 to divide the rectangular frame 1 into several areas, and a sewage collecting bag 3 is arranged in each area; in order to enable the upper tail water of the sewage pool to flow from one end of the frame 1 to the other end, the height of the outer frame 1 is set to be higher than the height of the partition pipe 2, and the partition pipe 2 is equivalent to an overflow dam, and the tail water flows into the adjacent sewage collecting bag 3 through the overflow dam.

[0039] The optional implementation methods include: the partition tube 2 uses a PE tube with an outer diameter of 50mm, the frame 1 uses a PE tube with a diameter of 110mm, and the height of the frame 1 is 60mm higher than the partition tube, provided that the bottom of the partition tube 2 is at the same height as the bottom of the frame 1.

[0040] In the above-mentioned automated sewage fine particle collection device, the tail water is first discharged into the first sewage collecting bag 3 on the left through the tail water discharge pipe 13, and then flows to the right through the overflow dam to the next sewage collecting bag 3, where it is precipitated. The upper tail water overflows after passing through the last sewage collecting bag 3.

[0041] In the above embodiment, it can be improved or preferred that a suction pipe 5 is provided in the waste bag 3, and the bottom of the suction pipe 5 penetrates into the bottom conical structure 4 of the waste bag 3. In order to clean the feces and sewage residues in the waste bag 3 in time, the suction pipe 5 is used to penetrate into the part where the feces and sewage residues are deposited for suction, and the sewage discharge effect is better.

[0042] Preferably, in order to avoid clogging, a technical solution that can be selected is that the bottom end and / or the bottom side of the suction pipe 5 are provided with a plurality of microporous structures 6. The bottom of the sewage collecting bag 3 is conical, and the feces and sewage residues are deposited there. A suction pipe 5 made of 50mm PE material can be used for suction. In order to prevent clogging, a small hole can be opened at the bottom of the suction pipe 5, and the hole diameter is larger than the feces and sewage residues.

[0043] In the above embodiment, it can be improved or preferred that at least one suction pipe 5 is provided in each of the sewage collecting bags 3, and all the suction pipes 5 converge into a suction main pipe 7, and a suction pump 8 is connected to the suction main pipe 7, and the inlet of the suction pump 8 is connected to the suction main pipe 7, and the outlet of the suction pump 8 discharges feces and sewage residues. The suction pump 8 is a self-priming pump.

[0044] Preferably, each of the suction pipes 5 is provided with a solenoid valve 9 , and all of the solenoid valves 9 are connected to a programmable controller.

[0045] In application, it can be selected that the suction pump 8 adopts a self-priming pump with a power of 6KW; 50 sewage collecting bags 3 are tied to a frame 1 composed of PE pipes and arranged in a row, a suction pipe 5 is arranged in each sewage collecting bag 3, and all the suction pipes 5 are individually provided with a solenoid valve 9, and then converge into a suction main pipe 7; each solenoid valve 9 is connected to the programmable logic controller in the control cabinet through a control line; when the suction pump 8 is started, the controller can control the opening and closing of 50 solenoid valves 9 according to a preset program (different solenoid valves 9 can be opened in time), and the solenoid valves 9 can be opened in a cycle to control the suction, so as to achieve the timely and quantitative discharge of feces and sewage residues from the sewage collecting bag 3, ensuring that the residual bait and feces of the eel tail water are quickly collected as soon as they leave the fish body, so as to achieve the cleanliness of the water in the collection pool.

[0046] As another aspect of the present invention, a sewage fine particle collection system is also provided. Figure 1 As shown, the system includes any of the above-mentioned automated sewage fine particle collection devices, and the collection system also includes a residual bait and feces collection and fermentation tank 10 and an algae seed expansion raceway tank 11; the outlet of the suction pump 8 is located above the residual bait and feces collection and fermentation tank 10, and discharges the feces residue into the residual bait and feces collection and fermentation tank 10.

[0047] In the above embodiment, assuming that the sewage pool of the sewage fine particle collection system is 2 meters deep, the distance from the bottom end of the conical structure 4 of the sewage collecting bag 3 to the bottom of the pool must be at least 200 mm, so that the sewage collecting bag 3 can be in a naturally falling and suspended state in the sewage pool, and the conical structure 4 cannot be supported by the bottom of the pool.

[0048] In the above embodiment, it can be improved or preferred that the residual bait and feces collection and fermentation tank 10 is divided into a plurality of boxes, and the biogas slurry after fermentation of feces residues in the residual bait and feces collection and fermentation tank 10 is pumped into the algae seed expansion raceway pool 11 through a first lifting pump 12.

[0049] Preferably, a second lifting pump 14 is provided in the algae species expansion raceway pool 11, and the second lifting pump 14 directionally transports the mature green algae expanded in the algae species expansion raceway pool 11 to the automated pipe network type pearl oyster supply feeding system for precise targeted drip irrigation feeding of pearl oysters.

[0050] The present invention also provides an application example. Assuming that the tailwater discharge of an eel farm is 1,000 cubic meters per day, a frame can be used to form three sides of a rectangular structure to form a U-shaped open frame. The remaining side of the rectangular frame is closed with a partition pipe that is lower than the frame height. The frame is made of a PE pipe. The partition pipe is also made of a PE pipe. In the rectangular frame, 50 collection box areas are separated by partition pipes, and a sewage collection bag is hung in each collection box area. The water capacity of each sewage collection bag when fully unfolded (when falling naturally) is 20 cubic meters. According to experience, eel farms discharge tail water once every 12 hours, and each discharge time is within 2 hours. According to the discharge law of eel farms, two groups of 1,000 cubic meters of automated sewage fine particle collection devices are designed, which are replaced every 12 hours for circulation treatment. The sedimentation time for each group is 12 hours. In the water quality sampling experiment, it has been found that the sedimentation rate of eel bait, feces and debris in the water in stagnant water is 70% in 4 hours, and the sedimentation rate in 8 hours in stagnant water is 98%, so the design of 12 hours of sedimentation time meets the technical requirements.

[0051] The present invention solves the technical problem that it is difficult to treat fine-grained feces and sewage residues in the prior art, and utilizes the fine-grained feces and sewage residues to expand the cultivation of green algae and cultivate pearl oysters, and can also make the tail water meet the discharge standards, which is a technical means to achieve multiple goals at one stroke.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. An automated sewage fine particle collection device, characterized in that: Includes a frame capable of floating on a sewage tank; The frame is provided with a partition tube for partitioning the frame into a plurality of areas; In the frame, a dirt collection bag is hung in each area separated by the separation pipe; The bottom of the sewage collection bag has a conical structure and is made of PVC waterproof canvas; The partition tube is connected to the frame, and the top height of the partition tube is lower than the top height of the frame; It also includes a tail water discharge pipe, through which the tail water is discharged into the first sewage collecting bag on the left side; A suction pipe is provided in the sewage collecting bag, and the bottom of the suction pipe penetrates into the bottom conical structure of the sewage collecting bag; The bottom end and / or the bottom side of the suction pipe are provided with a plurality of microporous structures; At least one suction pipe is provided in each of the sewage collecting bags, and all the suction pipes converge into a suction main pipe, to which a suction pump is connected, the inlet of the suction pump is connected to the suction main pipe, and the outlet of the suction pump discharges fecal residue.

2. The collecting device according to claim 1, characterized in that The frame is surrounded by PE pipes.

3. The collecting device according to claim 1, characterized in that The separation tube is made of PE material.

4. The collecting device according to claim 1, characterized in that Each of the suction pipes is provided with a solenoid valve, and all of the solenoid valves are connected to a programmable controller.

5. A sewage fine particle collection system, comprising the collection device according to any one of claims 1 to 4, characterized in that: The collection system also includes a residual bait and feces collection and fermentation tank and an algae seed expansion raceway tank; the outlet of the suction pump is located above the residual bait and feces collection and fermentation tank, and discharges feces residues into the residual bait and feces collection and fermentation tank.

6. The collection system according to claim 5, characterized in that The residual bait and feces collection and fermentation tank is divided into a plurality of boxes, and the biogas slurry after the feces and sewage residues are fermented in the residual bait and feces collection and fermentation tank is pumped into the algae seed expansion raceway pool through a first lifting pump.

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