Sewage treatment device for shrimp culture

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a sewage treatment device for shrimp culture, which performs aeration treatment on sewage through an aeration device, collects and stores high-density sundries, and screens out shrimp seeds in the sewage through a screening device to prevent the shrimp seeds from entering equipment to cause economic loss. The vibration device drives the screening device to vibrate, screened shrimp seeds and large-size sundries are shaken off and fall into a culture pond again, the practicability of the device is improved, and economic losses in the sewage treatment process are reduced; comprising an aeration device, a screening device and a vibration device, the screening device is installed on the aeration device, and the vibration device is installed on the aeration device and connected with the screening device.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sewage treatment device for shrimp farming. Background Art

[0002] Shrimp farming wastewater treatment is an important and necessary link, because the wastewater generated in the farming process will have a serious impact on the environment if it is discharged directly without treatment; Shrimp is a long-bodied animal living in water, belonging to the arthropod crustacean, and there are many types, including green shrimp, river shrimp, grass shrimp, crayfish, prawns, prawns, mud shrimp, mantis shrimp, lobster, lobster, etc. Shrimp has a very high therapeutic value and is used as a Chinese medicinal material; At present, in the process of shrimp farming, farming wastewater is inevitably generated, which contains harmful substances such as shrimp bait and feces. If these harmful substances such as bait and feces are not thoroughly treated and directly discharged, it will cause serious environmental pollution.

[0003] The Chinese utility model patent with application number CN201921445805.1 in the prior art relates to a sewage treatment device for shrimp farming, including a sedimentation tank, a filter chamber, an auxiliary support, a filter screen, a movable scraper and a reset spring, etc., which can improve the safety of shrimp farming.

[0004] However, in actual use, since common farmed shrimp species are semi-transparent, especially young shrimps are difficult to distinguish with the naked eye, directly sending the water in the breeding pond into the equipment for treatment will cause the loss of some shrimp fry, resulting in certain economic losses. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a sewage treatment device for aeration treatment through an aeration device, and collects and stores high-density debris, and screens out shrimp fry in the sewage through a screening device to prevent the shrimp fry from entering the equipment and causing economic losses. The screening device is driven to vibrate by a vibration device to shake off the screened shrimp fry and large-volume debris and drop them back into the breeding pond, thereby improving the practicability of the device and reducing economic losses in the sewage treatment process.

[0006] The utility model discloses a sewage treatment device for shrimp breeding; the device comprises an aeration device, a screening device and a vibration device; the screening device is installed on the aeration device, and the vibration device is installed on the aeration device and connected with the screening device; the sewage is aerated by the aeration device, and high-density debris is collected and stored; the shrimp fry in the sewage is screened out by the screening device to prevent the shrimp fry from entering the equipment and causing economic losses; the screening device is driven to vibrate by the vibration device, and the screened shrimp fry and large-volume debris are shaken off and fall back into the breeding pond, thereby improving the practicability of the device and reducing the economic losses in the sewage treatment process.

[0007] Preferably, the aeration device includes a tank body, a sludge tank, an air pump, an aeration tank and an aeration head, a sludge tank is arranged at the rear of the tank body, a sewage outlet is arranged at the bottom of the sludge tank, a valve is installed on the sewage outlet, a certain slope is arranged at the bottom of the sludge tank, an aeration tank is arranged at the front of the sludge tank, an overflow trough is arranged between the aeration tank and the sludge tank, an aeration head is installed at the bottom of the aeration tank, and the aeration head is connected to the output end of the air pump through a pipeline; high-density debris is collected by the sludge tank, and the slope of the bottom of the sludge tank facilitates the discharge of the collected debris from the sewage outlet, the sewage in the sludge tank overflows into the aeration tank through the overflow trough between the sludge tank and the aeration tank, and the high-pressure gas is transported to the aeration head by the air pump to spray out to aerate the sewage, so that fine debris and flocs in the sewage float to the water surface, which is convenient for the subsequent separation of debris in the water.

[0008] Preferably, the screening device includes a support frame, a rotating shaft, a screening frame, a water collecting bucket and a sewage discharge plate. The support frame is arranged on the upper end surface of the sludge pool, a filter screen is arranged on the lower end surface of the screening frame, one end of the screening frame is connected to the support frame through the rotating shaft, a water collecting bucket is installed on the lower end surface of the screening frame, and a sewage discharge plate is arranged on the edge of the side of the screening frame away from the rotating shaft; the sewage is initially and simply filtered by the screening frame, and the shrimps and large-volume debris in the sewage are screened; the screening frame is rotated by the rotating shaft to pour the shrimps screened on the screening frame back into the breeding pond through the sewage discharge plate, thereby improving the practicability of the device, reducing the loss of shrimp seedlings, and improving the practicability of the device.

[0009] Preferably, the vibration device includes a first reduction motor, a turntable, a strip sleeve and a toggle rod. The first reduction motor is installed on the upper part of the right end surface of the sludge tank, and the output end of the first reduction motor passes through the right end surface of the sludge tank and extends to the inside of the sludge tank and is connected to the middle part of the turntable. A toggle rod is provided on the edge of the left end surface of the turntable, and a strip sleeve is installed on the lower end surface of the screening frame, and the toggle rod passes through the inside of the strip sleeve. Turning on the first reduction motor transmits power to the turntable to drive the turntable to rotate, thereby driving the toggle rod to continuously toggle the strip sleeve, driving the right part of the screening frame to shake up and down, and then the shrimp seedlings and large-volume debris screened out on the screening frame are poured back into the breeding pond through the sewage discharge plate, thereby reducing the labor intensity of the operator.

[0010] Preferably, it also includes a tertiary sedimentation tank, an overflow trough and a foam scraper plate. The tertiary sedimentation tank is arranged on the left side of the aeration tank, an overflow trough is arranged on the upper part of the connection between the tertiary sedimentation tank and the aeration tank, multiple groups of overflow troughs are arranged on the top of the wall between the three tanks in the tertiary sedimentation tank, and a foam scraper plate is installed on the upper part of the tertiary sedimentation tank, and the lower part of the foam scraper plate itself matches the height of the three groups of tank bodies in the tertiary sedimentation tank; after the sewage in the aeration tank flows into the tertiary sedimentation tank, a large amount of dirt is precipitated through the tertiary sedimentation inside the tertiary sedimentation tank, and the foam on the surface of the liquid in the tertiary sedimentation tank is scraped off by the foam scraper plate.

[0011] Preferably, it also includes a support plate, a second reduction motor, a reciprocating screw, a reciprocating platform and a support arm, a reciprocating screw and two groups of light rods are horizontally installed on the rear end surface of the three-stage sedimentation tank through the support plate, the light rods are respectively located on the left and right sides of the reciprocating screw, and the second reduction motor is installed on the rear end surface of the support plate, the output end of the second reduction motor is connected to the reciprocating screw, the reciprocating platform is connected to the reciprocating screw through bolts and the two groups of light rods pass through the reciprocating platform, and the upper end surface of the reciprocating platform is connected to the rear part of the scraper plate through the support arm; turning on the second reduction motor transmits power to the reciprocating screw to drive the reciprocating screw to rotate, so that the reciprocating platform moves back and forth repeatedly on the reciprocating screw, thereby continuously pushing the scraper plate to push out the floating foam on the surface of the liquid in the three-stage sedimentation tank, and the movement process of the reciprocating platform is limited by the two groups of light rods, so as to reduce the vibration of the reciprocating platform itself during the movement process and improve the stability of the device.

[0012] Preferably, a foam collecting pool is further included. The front side of the tertiary sedimentation tank is provided with a foam collecting pool. The floating foam pushed out by the foam scraper is collected by the foam collecting pool to facilitate subsequent waste treatment.

[0013] Compared with the prior art, the utility model has the following beneficial effects: sewage is aerated by an aeration device, and high-density debris is collected and stored; shrimp fry in sewage is screened out by a screening device to prevent the shrimp fry from entering the equipment and causing economic losses; the screening device is driven to vibrate by a vibration device to shake off the screened shrimp fry and large-volume debris and drop them back into the breeding pond, thereby improving the practicability of the device and reducing economic losses in the sewage treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the axonometric structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the first cross-sectional structure of the utility model;

[0016] Figure 3 It is a second cross-sectional structural schematic diagram of the utility model;

[0017] Figure 4 It is a partial enlarged structural schematic diagram of the utility model;

[0018] Markings in the attached drawings: 1. tank body; 2. sludge tank; 3. air pump; 4. aeration tank; 5. aeration head; 6. support frame; 7. rotating shaft; 8. screening frame; 9. water collecting bucket; 10. sewage discharge plate; 11. first reduction motor; 12. turntable; 13. strip sleeve; 14. toggle rod; 15. third-stage sedimentation tank; 16. overflow trough; 17. scraper plate; 18. support plate; 19. second reduction motor; 20. reciprocating screw; 21. reciprocating platform; 22. support arm; 23. foam collecting tank. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0020] Example

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 The screening device is installed on the aeration device, and the vibrating device is installed on the aeration device and connected with the screening device;

[0022] First, the sewage is filtered simply and preliminarily through the screening frame 8 to screen the shrimps and large-volume debris in the sewage, and then the first reduction motor 11 is turned on to transmit power to the turntable 12 to drive the turntable 12 to rotate, thereby driving the toggle rod 14 to continuously toggle the strip sleeve 13, driving the right part of the screening frame 8 to shake up and down, and then the shrimp seedlings and large-volume debris screened on the screening frame 8 are returned to the breeding pond through the sewage discharge plate 10, and then the high-pressure gas is delivered to the aeration head 5 through the air pump 3 to spray and aerate the sewage, and then the second reduction motor 19 is turned on to transmit power to the reciprocating screw 20 to drive the reciprocating screw 20 to rotate, so that the reciprocating platform 21 moves back and forth repeatedly on the reciprocating screw 20, thereby continuously pushing the scraper plate 17 to push out the floating foam on the surface of the liquid in the tertiary sedimentation tank 15;

[0023] The aeration device comprises a tank body 1, a sludge tank 2, an air pump 3, an aeration tank 4 and an aeration head 5. The sludge tank 2 is arranged at the rear of the tank body 1, a sewage outlet is arranged at the bottom of the sludge tank 2, a valve is installed on the sewage outlet, a certain slope is arranged at the bottom of the sludge tank 2, an aeration tank 4 is arranged at the front of the sludge tank 2, an overflow tank is arranged between the aeration tank 4 and the sludge tank 2, an aeration head 5 is installed at the bottom of the aeration tank 4, and the aeration head 5 is connected to the output end of the air pump 3 through a pipeline;

[0024] The screening device includes a support frame 6, a rotating shaft 7, a screening frame 8, a water collecting bucket 9 and a sewage plate 10. The support frame 6 is arranged on the upper end surface of the sludge tank 2, and a filter screen is arranged on the lower end surface of the screening frame 8. One end of the screening frame 8 is connected to the support frame 6 through the rotating shaft 7. A water collecting bucket 9 is installed on the lower end surface of the screening frame 8. A sewage plate 10 is arranged on the edge of one side of the screening frame 8 away from the rotating shaft 7.

[0025] The vibration device includes a first reduction motor 11, a rotating disk 12, a strip sleeve 13 and a toggle rod 14. The first reduction motor 11 is installed on the upper part of the right end surface of the sludge tank 2. The output end of the first reduction motor 11 passes through the right end surface of the sludge tank 2 and extends to the inside of the sludge tank 2 and is connected to the middle part of the rotating disk 12. The toggle rod 14 is provided on the edge of the left end surface of the rotating disk 12. The strip sleeve 13 is installed on the lower end surface of the screening frame 8, and the toggle rod 14 passes through the inside of the strip sleeve 13.

[0026] It also includes a tertiary sedimentation tank 15, an overflow trough 16 and a foam scraper 17. The tertiary sedimentation tank 15 is arranged on the left side of the aeration tank 4. The overflow trough is arranged on the upper part of the connection between the tertiary sedimentation tank 15 and the aeration tank 4. Multiple groups of overflow troughs 16 are arranged on the top of the wall between the three tanks in the tertiary sedimentation tank 15. A foam scraper 17 is installed on the upper part of the tertiary sedimentation tank 15. The lower part of the foam scraper 17 matches the height of the three groups of tanks in the tertiary sedimentation tank 15.

[0027] It also includes a support plate 18, a second reduction motor 19, a reciprocating screw 20, a reciprocating platform 21 and a support arm 22. The reciprocating screw 20 and two groups of polished rods are horizontally installed on the rear end surface of the three-stage sedimentation tank 15 through the support plate 18. The polished rods are respectively located on the left and right sides of the reciprocating screw 20. The second reduction motor 19 is installed on the rear end surface of the support plate 18. The output end of the second reduction motor 19 is connected to the reciprocating screw 20. The reciprocating platform 21 is connected to the reciprocating screw 20 through bolts and the two groups of polished rods pass through the reciprocating platform 21. The upper end surface of the reciprocating platform 21 is connected to the rear of the scraping plate 17 through the support arm 22.

[0028] The sewage is aerated through the aeration device, and high-density debris is collected and stored. The shrimp fry in the sewage is screened out through the screening device to prevent them from entering the equipment and causing economic losses. The screening device is driven to vibrate by the vibration device, and the screened shrimp fry and large-volume debris are shaken off and fall back into the breeding pond, which improves the practicability of the device and reduces economic losses in the sewage treatment process.

[0029] The air pump 3, the aeration head 5, the first reduction motor 11 and the second reduction motor 19 of the sewage treatment device for shrimp farming of the utility model are purchased on the market. The technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for the technicians in the field to make creative efforts.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A sewage treatment device for shrimp farming; characterized in that: It includes an aeration device, a screening device and a vibration device. The screening device is installed on the aeration device, and the vibration device is installed on the aeration device and connected with the screening device. The aeration device comprises a tank body (1), a sludge tank (2), an air pump (3), an aeration tank (4) and an aeration head (5); the sludge tank (2) is arranged at the rear of the tank body (1); a sewage outlet is arranged at the bottom of the sludge tank (2); a valve is installed on the sewage outlet; a certain slope is arranged at the bottom of the sludge tank (2); an aeration tank (4) is arranged at the front of the sludge tank (2); an overflow tank is arranged between the aeration tank (4) and the sludge tank (2); an aeration head (5) is installed at the bottom of the aeration tank (4); and the aeration head (5) is connected to the output end of the air pump (3) through a pipeline; The screening device comprises a support frame (6), a rotating shaft (7), a screening frame (8), a water collecting bucket (9) and a sewage discharge plate (10); the support frame (6) is arranged on the upper end surface of the sludge pool (2); a filter screen is arranged on the lower end surface of the screening frame (8); one end of the screening frame (8) is connected to the support frame (6) through the rotating shaft (7); a water collecting bucket (9) is installed on the lower end surface of the screening frame (8); and a sewage discharge plate (10) is arranged on the edge of one side of the screening frame (8) away from the rotating shaft (7); The vibration device comprises a first reduction motor (11), a rotating disk (12), a strip sleeve (13) and a toggle rod (14); the first reduction motor (11) is installed on the upper portion of the right end surface of the sludge pool (2); the output end of the first reduction motor (11) passes through the right end surface of the sludge pool (2) and extends to the inside of the sludge pool (2) and is connected to the middle of the rotating disk (12); the toggle rod (14) is arranged on the edge of the left end surface of the rotating disk (12); the strip sleeve (13) is installed on the lower end surface of the screening frame (8); and the toggle rod (14) passes through the inside of the strip sleeve (13).

2. A shrimp farming sewage treatment device as claimed in claim 1, characterized in that: The invention also comprises a tertiary sedimentation tank (15), an overflow trough (16) and a foam scraper (17). The tertiary sedimentation tank (15) is arranged on the left side of the aeration tank (4). The overflow trough is arranged on the upper part of the connection between the tertiary sedimentation tank (15) and the aeration tank (4). A plurality of groups of overflow troughs (16) are arranged on the top of the wall between the three tanks in the tertiary sedimentation tank (15). A foam scraper (17) is installed on the upper part of the tertiary sedimentation tank (15). The lower part of the foam scraper (17) matches the height of the three groups of tank bodies in the tertiary sedimentation tank (15).

3. A shrimp farming sewage treatment device as claimed in claim 1, characterized in that: The invention also comprises a support plate (18), a second reduction motor (19), a reciprocating screw (20), a reciprocating platform (21) and a support arm (22). The reciprocating screw (20) and two groups of polished rods are horizontally installed on the rear end surface of the three-stage sedimentation tank (15) through the support plate (18), and the polished rods are respectively located on the left and right sides of the reciprocating screw (20). The second reduction motor (19) is installed on the rear end surface of the support plate (18), and the output end of the second reduction motor (19) is connected to the reciprocating screw (20). The reciprocating platform (21) is connected to the reciprocating screw (20) through bolts, and the two groups of polished rods pass through the reciprocating platform (21). The upper end surface of the reciprocating platform (21) is connected to the rear part of the scraper plate (17) through the support arm (22).

4. A shrimp farming sewage treatment device as claimed in claim 1, characterized in that: It also comprises a froth collecting pool (23), and the front side of the tertiary sedimentation pool (15) is provided with the froth collecting pool (23).

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