A surimi processing wastewater recycling device

Abstract

The utility model discloses a kind of surimi processing wastewater recovery treatment devices, including box, stirring subassembly, aeration subassembly, air floatation groove and chain scraper, the water inlet pipe is fixed in the top side of the box, the opening is arranged in the side wall of the box and below water inlet pipe, the opening inside and the filter screen conveyor belt that the inside of box is jointly equipped with;In the utility model, setting box, water inlet pipe, filter screen conveyor belt, first motor, slag collecting hopper, first conveying auger, brush roller and second motor, wastewater will fall on filter screen conveyor belt surface in the process that wastewater enters the inside of box from water inlet pipe, fish scales, larger solid impurities such as meat pieces in wastewater are intercepted and filtered by filter screen conveyor belt, with filter screen conveyor belt rotation, impurities are transported to the top of slag collecting hopper, then brush roller is rotated by second motor, impurities on the surface of filter screen conveyor belt are cleaned using brush roller, avoid filter screen conveyor belt blockage influence continuous filtration.

Description

Technical Field

[0001] This utility model relates to the field of fish surimi processing wastewater treatment technology, and in particular to a fish surimi processing wastewater recycling and treatment device. Background Technology

[0002] Fish paste processing generates a large amount of wastewater, primarily from the cleaning, scaling, eviscerating, rinsing, and dehydration of the raw fish. These steps introduce significant amounts of fish blood, oil, meat scraps, soluble proteins, and colloidal substances into the wastewater, resulting in high organic matter content, abundant suspended solids, and easy spoilage. Dissolved air flotation (DAF) is a crucial piece of equipment for treating fish paste wastewater because it contains substantial amounts of oil and colloidal proteins with densities close to water, making them difficult to remove through sedimentation. DAF releases microbubbles from dissolved air water, adsorbing oil and colloids to form scum, which is easily scraped off mechanically. This process also effectively reduces the load on subsequent biological treatment, improving overall treatment efficiency.

[0003] However, existing dissolved air flotation (DAF) machines have the following drawbacks when treating surimi wastewater: Firstly, the wastewater contains a large amount of impurities such as fish scales and bone fragments. When the wastewater is directly discharged into the DAF machine, these larger impurities will settle inside the machine, making subsequent treatment very troublesome. Secondly, because the surimi wastewater contains a large amount of colloidal protein, which is highly viscous and easily adheres to the micropores of the aeration pipes, it leads to uneven bubble generation and reduces flotation efficiency. Therefore, further improvements are needed. To this end, we propose a surimi processing wastewater recovery and treatment device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a wastewater recycling and treatment device for surimi processing.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a fish surimi processing wastewater recycling and treatment device, comprising a tank, a stirring assembly, an aeration assembly, an air flotation tank, and a chain scraper. A water inlet pipe is fixed to one side of the top of the tank. An opening is formed on the side wall of the tank below the water inlet pipe. A filter conveyor belt passes through the opening and the interior of the tank. A slag collection hopper is fixed to the outer side wall of the tank below the filter conveyor belt. The top of the slag collection hopper is rotatably connected to the filter conveyor belt. The aeration assembly includes a brush roller that contacts the surface of the filter conveyor belt. The aeration assembly includes a dissolved air pump fixed to the top of the housing. An aeration pipe is fixedly connected to the outlet of the dissolved air pump and extends into the housing. A cleaning assembly is rotatably connected to the surface of the aeration pipe. A fourth motor that drives the cleaning assembly to rotate is installed on the top of the housing. An overflow pipe is fixed to the side of the housing away from the opening. The flotation tank and the chain scraper are both located inside the housing, with the flotation tank situated between the overflow pipe and the chain scraper.

[0006] Furthermore, a first motor for driving the filter conveyor belt to rotate is installed on the outer wall of the housing.

[0007] Furthermore, a second motor is installed on the outer wall of the slag collection hopper to drive the brush roller to rotate, and the rotation direction of the brush roller is opposite to the rotation direction of the filter conveyor belt.

[0008] Furthermore, a first auger is installed at the bottom of the slag collection hopper, and a second auger is installed at the bottom of the air flotation tank.

[0009] Furthermore, the stirring assembly includes a third motor fixed to the top of the housing, a vertical shaft fixed to the bottom output end of the third motor, and a stirring blade fixedly connected to the bottom end of the vertical shaft.

[0010] Furthermore, the cleaning assembly includes a sleeve that is rotatably fitted onto the surface of the aeration pipe. Two symmetrical cleaning brushes are fixed to the outer wall of the sleeve. The cleaning brushes are in contact with the outer surface of the aeration pipe. A driven gear is fixed to the outer wall of the sleeve. A driving gear is fixed to the output end of the fourth motor. The driving gear meshes with the driven gear.

[0011] The beneficial effects of this utility model are:

[0012] 1. In use, this utility model includes a housing, an inlet pipe, a filter conveyor belt, a first motor, a slag hopper, a first conveying auger, a brush roller, and a second motor. As wastewater enters the housing through the inlet pipe, it falls onto the surface of the filter conveyor belt. The filter conveyor belt intercepts and filters larger solid impurities such as fish scales and meat scraps in the wastewater. As the filter conveyor belt rotates, the impurities are transported to the top of the slag hopper. The second motor then drives the brush roller to rotate, cleaning the impurities from the surface of the filter conveyor belt and preventing blockage that could affect continuous filtration.

[0013] 2. In use, this utility model is equipped with a dissolved air pump, an aeration pipe, a sleeve, a cleaning brush, a driven gear, a fourth motor, and a driving gear. During the aeration of wastewater inside the tank by the dissolved air pump and the aeration pipe, the fourth motor drives the cleaning brush to rotate along the surface of the aeration pipe. The cleaning brush scrapes off the colloidal protein on the surface of the aeration pipe, preventing the colloidal protein from adhering to the micropores of the aeration pipe, which would cause uneven bubble generation and reduce the flotation efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1This is an overall sectional view of the present invention;

[0016] Figure 2 This is a partial perspective view of the present invention;

[0017] Figure 3 For the present utility model Figure 1 Enlarged view of point A in the middle.

[0018] The attached figures are labeled as follows:

[0019] 1. Housing; 2. Inlet pipe; 3. Opening; 4. Filter conveyor belt; 5. First motor; 6. Slag hopper; 7. First auger; 8. Brush roller; 9. Second motor; 10. Third motor; 11. Vertical shaft; 12. Agitator blade; 13. Dissolved air pump; 14. Aeration pipe; 15. Sleeve; 16. Cleaning brush; 17. Driven gear; 18. Fourth motor; 19. Drive gear; 20. Flotation tank; 21. Second auger; 22. Chain scraper; 23. Overflow pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1-3 As shown, a wastewater recycling and treatment device for surimi processing is disclosed, comprising a tank 1, a stirring assembly, an aeration assembly, an air flotation tank 20, and a chain scraper 22. An inlet pipe 2 is fixed to one side of the top of the tank 1. An opening 3 is provided on the side wall of the tank 1 below the inlet pipe 2. A filter conveyor belt 4 passes through the opening 3 and the interior of the tank 1. A slag hopper 6 is fixed to the outer side wall of the tank 1 below the filter conveyor belt 4. A brush roller 8 is rotatably connected to the top of the slag hopper 6 below the filter conveyor belt 4. The brush roller 8 is connected to the filter conveyor belt... 4. Surface contact: The aeration assembly includes a dissolved air pump 13 fixed to the top of the housing 1. An aeration pipe 14 is fixedly connected to the air outlet of the dissolved air pump 13 and extends into the interior of the housing 1. A cleaning component is rotatably connected to the surface of the aeration pipe 14. A fourth motor 18 for driving the cleaning component to rotate is installed on the top of the housing 1. An overflow pipe 23 is fixed on the side of the housing 1 away from the opening 3. The air flotation tank 20 and the chain scraper 22 are both located inside the housing 1, and the air flotation tank 20 is located between the overflow pipe 23 and the chain scraper 22.

[0022] In this embodiment, a first motor 5 is installed on the outer wall of the housing 1 to drive the filter conveyor belt 4 to rotate. The filter conveyor belt 4 is supported at both ends by two rotating rollers. The output end of the first motor 5 is fixedly connected to one of the rollers. The first motor 5 drives one of the rollers to rotate, thereby driving the filter conveyor belt 4 to rotate. Its working principle is the same as that of a belt conveyor. The filter screen replaces the conveyor belt on the surface of the belt conveyor. When wastewater enters the top of the housing 1 from the inlet pipe 2, the wastewater falls on the surface of the filter conveyor belt 4. The filter conveyor belt 4 filters the wastewater and intercepts larger impurities such as fish scales and fish bones in the wastewater.

[0023] A second motor 9 is installed on the outer wall of the slag collection hopper 6 to drive the brush roller 8 to rotate. The brush roller 8 rotates in the opposite direction to the rotation of the filter conveyor belt 4.

[0024] After the filter conveyor belt 4 filters out larger impurities such as fish scales and fish bones from the wastewater, the filter conveyor belt 4 rotates to one side of the slag collection hopper 6, causing the impurities on the surface of the filter conveyor belt 4 to fall into the slag collection hopper 6. During this process, the second motor 9 drives the brush roller 8 to rotate in the opposite direction at the bottom of the filter conveyor belt 4, using the brush roller 8 to scrape off the impurities on the surface of the filter conveyor belt 4 and prevent the filter conveyor belt 4 from clogging.

[0025] In this embodiment, a first auger 7 is installed at the bottom of the slag collection hopper 6, and a motor that drives the first auger 7 to rotate is installed on the outer wall of the slag collection hopper 6. The bottom of the slag collection hopper 6 is close to the first auger 7, and the side not where the motor is installed is open. The motor drives the first auger 7 to rotate at the bottom of the slag collection hopper 6, thereby discharging the impurities collected at the bottom of the slag collection hopper 6.

[0026] A second auger 21 is installed at the bottom of the flotation tank 20. The second auger 21 works on the same principle as the first auger 7. The side wall of the tank 1, near the end of the second auger 21, is also open. A motor that drives the second auger 21 is located on the side of the outer side of the tank 1 away from the open end. The flotation tank 20, the second auger 21, and the chain scraper 22 all use the same technology as existing flotation machines. After small particulate impurities in the wastewater float to the surface, the chain scraper 22 scrapes the impurities into the flotation tank 20. Then, the motor corresponding to the second auger 21 drives the second auger 21 to rotate, discharging the impurities in the flotation tank 20 from the open end.

[0027] The stirring assembly includes a third motor 10 fixed to the top of the housing 1, a vertical shaft 11 fixed to the bottom output end of the third motor 10, and a stirring blade 12 fixedly connected to the bottom end of the vertical shaft 11.

[0028] The stirring assembly is located on the side near the water inlet pipe 2. The third motor 10 drives the vertical shaft 11 and the stirring blade 12 to rotate, thereby stirring the wastewater. Flocculant is added at the same time as the wastewater enters the tank 1 from the water inlet pipe 2. The stirring mixes the flocculant and the wastewater, causing the impurities in the wastewater to flocculate.

[0029] In this embodiment, the dissolved air pump 13 and the aeration pipe 14 adopt the existing technology in terms of structure and principle. After the dissolved air pump 13 is started, the wastewater is aerated through the aeration pipe 14. The bubbles adhere to the surface of the flocculated impurities and drive the impurities to float to the water surface.

[0030] The cleaning assembly includes a sleeve 15 that is rotatably fitted onto the surface of the aeration pipe 14. Two symmetrical cleaning brushes 16 are fixed to the outer wall of the sleeve 15. The cleaning brushes 16 are in contact with the outer surface of the aeration pipe 14. A driven gear 17 is fixed to the outer wall of the sleeve 15. A driving gear 19 is fixed to the output end of the fourth motor 18. The driving gear 19 meshes with the driven gear 17.

[0031] Under the meshing transmission of the driving gear 19 and the driven gear 17, the fourth motor 18 drives the sleeve 15 to rotate on the surface of the aeration pipe 14, thereby driving the cleaning brush 16 to rotate on the surface of the aeration pipe 14, thereby scraping off the colloidal protein attached to the surface of the aeration pipe 14 and preventing the micropores on the surface of the aeration pipe 14 from becoming clogged.

[0032] Working principle: Wastewater enters the tank 1 through the inlet pipe 2 and is first filtered by the rotating filter conveyor belt 4. The rotating filter conveyor belt 4 discharges impurities into the slag collection hopper 6. During this process, the rotating brush roller 8 scrapes off the impurities on the surface of the filter conveyor belt 4. The wastewater that has undergone preliminary filtration enters the tank 1 and is stirred and flocculated by the stirring assembly. The bubbles generated by the aeration assembly adhere to the surface of the impurities, causing them to float. The chain scraper 22 then scrapes the floating impurities into the flotation tank 20. The second auger 21 in the flotation tank 20 pushes the impurities out, while the clean water is discharged from the overflow pipe 23. This device, based on the existing flotation machine, reduces the burden on subsequent flotation by setting up a filter conveyor belt 4 for preliminary filtration of wastewater and can also achieve automatic cleaning of the filter conveyor belt 4 and the aeration pipe 14.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A wastewater recycling and treatment device for surimi processing, comprising a tank (1), a stirring assembly, an aeration assembly, an air flotation tank (20), and a chain scraper (22), characterized in that: A water inlet pipe (2) is fixed to one side of the top of the box (1). An opening (3) is provided on the side wall of the box (1) below the water inlet pipe (2). A filter conveyor belt (4) is installed inside the opening (3) and inside the box (1). A slag collection hopper (6) is fixed on the outer side wall of the box (1) below the filter conveyor belt (4). A brush roller (8) is rotatably connected to the top of the slag collection hopper (6) below the filter conveyor belt (4), and the brush roller (8) is in contact with the surface of the filter conveyor belt (4). The aeration assembly includes a dissolved air device fixed to the top of the box (1). Pump (13), the outlet of the dissolved air pump (13) is fixedly connected to an aeration pipe (14), and the aeration pipe (14) extends into the interior of the box (1). A cleaning component is rotatably connected to the surface of the aeration pipe (14), and a fourth motor (18) for driving the cleaning component to rotate is installed on the top of the box (1). An overflow outlet pipe (23) is fixed on the side of the box (1) away from the opening (3). The air flotation tank (20) and the chain scraper (22) are both located inside the box (1), and the air flotation tank (20) is located between the overflow outlet pipe (23) and the chain scraper (22).

2. The fish surimi processing wastewater recycling and treatment device according to claim 1, characterized in that: The outer wall of the housing (1) is equipped with a first motor (5) that drives the filter conveyor belt (4) to rotate.

3. The fish surimi processing wastewater recycling and treatment device according to claim 2, characterized in that: The outer wall of the slag collection hopper (6) is equipped with a second motor (9) that drives the brush roller (8) to rotate. The rotation direction of the brush roller (8) is opposite to that of the filter conveyor belt (4).

4. The fish surimi processing wastewater recycling and treatment device according to claim 1, characterized in that: The bottom of the slag collection hopper (6) is equipped with a first auger (7), and the bottom of the air flotation tank (20) is equipped with a second auger (21).

5. The fish surimi processing wastewater recycling and treatment device according to claim 1, characterized in that: The stirring assembly includes a third motor (10) fixed to the top of the housing (1), a vertical shaft (11) fixed to the bottom output end of the third motor (10), and a stirring blade (12) fixedly connected to the bottom end of the vertical shaft (11).

6. The fish surimi processing wastewater recycling and treatment device according to claim 1, characterized in that: The cleaning assembly includes a sleeve (15) that is rotatably fitted onto the surface of the aeration pipe (14). Two symmetrical cleaning brushes (16) are fixed on the outer wall of the sleeve (15). The cleaning brushes (16) are in contact with the outer surface of the aeration pipe (14). A driven gear (17) is fixed on the outer wall of the sleeve (15). A driving gear (19) is fixed at the output end of the fourth motor (18). The driving gear (19) meshes with the driven gear (17).

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