Device for removing suspended particulate matters in large-flow aquaculture tail water

Abstract

The utility model relates to the technical field of tail water filtration, in particular to a large-flow aquaculture tail water suspended particulate matter removal device which comprises a first-stage filtration device, a transition groove and a second-stage filtration device, the first-stage filtration device comprises a first-stage filtration shell, a central pipe, a water inlet pipe, a partition plate, water seepage holes, a baffle and a water outlet pipe, the outer end of the water outlet pipe of the first-stage filtering shell is communicated with the bottom of an inner cavity of the transition groove, and the second-stage filtering device is communicated with the inner cavity of the transition groove through a water pump. According to the utility model, most of large-mass particulate matters are precipitated and filtered through the primary filtering device, tail water precipitated and filtered by the primary filtering device flows to the transition tank, the tail water in the transition tank is pumped to the secondary filtering device through the water pump for further fine filtering, and small-mass suspended particulate matters are filtered; therefore, the tail water is filtered.

Description

TECHNICAL FIELD

[0001] The utility model relates to tail water filtering technical field especially relates to a kind of removal device of large-flow aquaculture tail water suspended particulate matter. BACKGROUND

[0002] Aquaculture tail water is wastewater generated in the process of aquaculture, containing metabolic waste of cultured animals, residual feed and drugs, nitrogen and phosphorus pollutants. If the aquaculture tail water is not properly treated and directly discharged, it will have many negative impacts on the environment. The particulate matter in the tail water is diverse in type, some of which can be suspended on the water surface, and some of which will sink to the bottom of the water. The size of the particles is also different, so it is difficult to achieve the effect of removing tail water particulate matter by using natural sedimentation filtration.

[0003] Based on the above problems, the utility model provides a kind of removal device of large-flow aquaculture tail water suspended particulate matter. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the shortcomings of the prior art, providing a kind of removal device of large-flow aquaculture tail water suspended particulate matter. Most of the particles with large mass are precipitated and filtered by the first filter device. The tail water after precipitation and filtration by the first filter device flows to the transition tank. The tail water in the transition tank is pumped to the second filter device for further fine filtration by the water pump. The suspended particulate matter with small mass is filtered, thereby completing the filtration of the tail water.

[0005] In order to achieve the purpose of the utility model, the utility model adopts the technical scheme that:

[0006] The utility model discloses a kind of removal device of large-flow aquaculture tail water suspended particulate matter, including first filter device, transition tank and second filter device, the first filter device includes first filter shell, center tube, water inlet pipe, baffle, water seepage hole, baffle and water outlet pipe, the first filter shell is hollow top opening cylindrical structure, its bottom is equipped with outlet, the inner wall of the first filter shell is connected with the baffle of circularity above, the baffle is equipped with the center hole for fixing the center tube in middle part, the top end height of the center tube is greater than the top end height of the first filter shell, the outer wall middle part of the first filter shell and center tube is equipped with the through-hole for the inner end of the water inlet pipe to pass through, the inner end of the water inlet pipe is communicated with the inner chamber middle part of the center tube, the upper surface middle part of the baffle is fixed with the baffle of annular shape, the surface of the baffle inside the baffle is equipped with a plurality of water seepage holes, the outer wall of the first filter shell is equipped with the water outlet pipe above, the height of the water outlet pipe is not less than the top end height of the baffle, the outer end of the water outlet pipe is communicated with the inner chamber bottom of the transition tank, the second filter device is communicated with the inner chamber of the transition tank by water pump.

[0007] The inner end of the water inlet pipe is provided with a bending section which is arranged perpendicularly to the water inlet pipe and is coaxial with the central pipe.

[0008] The bottom end of the central pipe is connected with a reflecting plate through a plurality of connecting rods, the reflecting plate has a circular structure, an outer diameter of the reflecting plate is greater than an outer diameter of the central pipe, bottom ends of the connecting rods are connected with an outer edge of the reflecting plate, and top ends of the connecting rods are connected with an outer edge of the bottom end of the central pipe.

[0009] The top end of the baffle has a plurality of filtering teeth in an annular array, the filtering teeth have an isosceles triangular structure, and the bottom of the primary filtering shell has a tapered structure with a gradually decreasing outer diameter from top to bottom.

[0010] The secondary filtering device comprises a secondary filtering shell, a fixed shaft, a filter screen frame, a drainage frame, a secondary filtering water inlet pipe, a spray head, a secondary filtering water outlet pipe and a mounting plate, the secondary filtering shell has a hollow square structure with an open top, the fixed shaft has a ring structure with an open top, one end of the fixed shaft is fixed to one side end wall of the secondary filtering shell, the other end of the fixed shaft is fixed to a mounting groove in the top of the mounting plate, an inner wall of the mounting groove is matched with the outer wall cross-sectional shape of the fixed shaft, and the bottom of the mounting plate is provided with a square through groove; the filter screen frame has a ring structure and is sleeved outside the fixed shaft, the surface of the filter screen frame has a plurality of square water filtering holes in an annular array, and the filter screen is sleeved outside the filter screen frame; the drainage frame has a "V" shape structure, two ends of the drainage frame pass through the axial direction of the fixed shaft and are connected with the two side inner end walls of the secondary filtering shell, one side inner end wall of the secondary filtering shell is provided with a secondary filtering drainage opening which is communicated with the secondary filtering water outlet pipe, one side outer wall of the secondary filtering shell is provided with a water inlet pipe hole for the secondary filtering water inlet pipe above, a plurality of spray heads towards the filter screen are connected to the outer wall of the secondary filtering water inlet pipe at equal intervals, the filter screen frame is driven to rotate by a driving mechanism, and the outer end of the secondary filtering water inlet pipe is communicated with the inner cavity of the transition groove through the water pump.

[0011] The driving mechanism comprises a driving motor, a driving shaft, a driving gear and a driven gear, the axial direction of the driven gear is fixed to one end of the outer wall of the filter screen frame, the driving motor is fixed to one side outer wall of the secondary filtering shell above, the output end of the driving motor is connected with the outer end of the driving shaft, the inner end of the driving shaft is fixedly connected with the axial direction of the driving gear through the outer wall of the secondary filtering shell, and the driving gear is matched with the driven gear.

[0012] The driven gear is fixed to one end of the outer wall of the filter screen frame, and a limiting ring is fixed to the other end of the outer wall.

[0013] The lower portion of the secondary filtering outlet pipe is provided with a secondary filtering overflow pipe, and the height of the secondary filtering overflow pipe is higher than the lowest point of the filter screen.

[0014] The utility model discloses beneficial effect lies in:

[0015] (1) the utility model discloses a first filtering device and carry out the sedimentation filtration to most mass bigger particulate matter, and the tail water after the sedimentation filtration of first filtering device flows to the transition groove, and the tail water in the transition groove is extracted to the secondary filtering device by water pump and carries out further fine filtration, and the mass smaller suspended particulate matter is filtered, thereby completing the filtration of tail water. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure schematic diagram of the utility model;

[0017] Figure 2 It is the top view of the utility model;

[0018] Figure 3 It is Figure 2 along the A-A section view;

[0019] Figure 4 It is Figure 2 along the B-B section view;

[0020] Figure 5 It is the structure schematic diagram of the secondary filtering device of the utility model and removes the filter screen.

[0021] In the drawings, 1 is a first filtering device, 2 is a transition groove, 3 is a secondary filtering device, 4 is a water pump, 5 is a driving mechanism, 11 is a first filtering shell, 12 is a center tube, 13 is an inlet pipe, 131 is a bending section, 14 is a partition, 15 is a water seepage hole, 16 is a baffle, 17 is an outlet pipe, 18 is a sewage outlet, 19 is a reflecting plate, 20 is a filtering tooth, 21 is a connecting rod, 31 is a secondary filtering shell, 32 is a fixed shaft, 33 is a filter screen frame, 34 is a drainage frame, 35 is a secondary filtering inlet pipe, 36 is a spray head, 37 is a secondary filtering outlet pipe, 38 is a mounting plate, 39 is a filter hole, 40 is a filter screen, 41 is a secondary filtering drainage outlet, 42 is a secondary filtering overflow pipe, 43 is a cleaning pipe, 44 is a limiting ring, 51 is a driving motor, 52 is a driving shaft, 53 is a driving gear, and 54 is a driven gear. DETAILED DESCRIPTION

[0022] The utility model is further explained as follows:

[0023] Please refer to Figures 1-5 ,

[0024] The utility model discloses a kind of removal devices of large-flow breeding tail water suspended particulate, including primary filter device 1, transition tank 2 and secondary filter device 3, the primary filter device 1 includes primary filter shell 11, center tube 12, water inlet pipe 13, baffle 14, water seepage hole 15, baffle 16 and water outlet pipe 17, the primary filter shell 11 is hollow top opening cylindrical structure, its bottom is equipped with sewage outlet 18, the inner wall of the primary filter shell 11 is connected with the baffle 14 of circularity above, the baffle 14 is equipped with the central hole for fixing the center tube 12 in middle part, the top end height of the center tube 12 is greater than the top end height of the primary filter shell 11, the outer wall middle part of the primary filter shell 11 and center tube 12 is equipped with the through-hole for the inner end of water inlet pipe 13 to pass through, the inner end of the water inlet pipe 13 is communicated with the inner chamber middle part of the center tube 12, the upper surface middle part of the baffle 14 is fixed with the baffle 16 of annular shape, the surface of the baffle 14 inside the baffle 16 is equipped with a plurality of water seepage holes 15, the outer wall above of the primary filter shell 11 is equipped with the water outlet pipe 17, the height of the water outlet pipe 17 is not less than the top end height of the baffle 16, the outer end of the water outlet pipe 17 is communicated with the inner chamber bottom of the transition tank 2, the secondary filter device 3 is communicated with the inner chamber of the transition tank 2 by water pump 4, the utility model is deposited by filtering to most mass larger particulate by primary filter device 1, after the tail water of primary filter device 1 sedimentation filtration flows to transition tank 2, and the tail water in transition tank 2 is extracted to secondary filter device 3 by water pump 4 and is further filtered, and the mass smaller suspended particulate is filtered, to complete the filtration of tail water.

[0025] The filtering process of primary filter device 1: tail water enters the center tube 12 by water inlet pipe 13, and the mass larger particulate is deposited to the bottom of primary filter shell 11 due to weight, and the tail water containing part suspended particulate flows out through water seepage hole 15 on baffle 14, and flows to the cavity formed by baffle 16, the inner wall above of primary filter shell 11 and the upper surface of baffle 14, and the tail water after further deposition flows to transition tank 2 by water outlet pipe 17.

[0026] Further, the inner end of water inlet pipe 13 is equipped with bending section 131, the bending section 131 is vertically arranged with the water inlet pipe 13, the bending section 131 is coaxial with the center tube 12, and the sedimentation travel of tail water is lengthened.

[0027] Further, the bottom end of the center tube 12 is connected with a reflecting plate 19 through several connecting rods 21, the reflecting plate 19 is circular structure, its outer diameter is greater than the outer diameter of the center tube 12, the bottom end of the connecting rod 21 is connected with the outer edge of the reflecting plate 19, the top end of the connecting rod 21 is connected with the bottom end of the center tube 12, by setting the reflecting plate 19, the tail water containing suspended particles can be scattered, the precipitation is carried out from the four sides of the reflecting plate 19, and the tail water cannot directly fall from top to bottom on the bottom of the primary filter shell 11, so that the particles on the bottom float up.

[0028] Further, the top end of the baffle 16 is annular array of several filtering teeth 20, the filtering teeth 20 are isosceles triangle structure, through the filtering teeth 20, some suspended particles can be filtered; the bottom of the primary filter shell 11 is tapered structure with gradually decreasing outer diameter from top to bottom, so that the precipitated particles can be collected at the bottom of the primary filter shell 11 to facilitate the discharge together from the bottom outlet.

[0029] Further, the secondary filter device 3 includes a secondary filter shell 31, a fixed shaft 32, a filter screen frame 33, a drainage frame 34, a secondary filter water inlet pipe 35, a spray head 36, a secondary filter water outlet pipe 37 and a mounting plate 38, the secondary filter shell 31 is hollow square structure with open top, the fixed shaft 32 is annular structure with open top, one end of the fixed shaft 32 is fixed on one side end wall of the secondary filter shell 31, the other end of the fixed shaft 32 is fixed in the mounting groove 381 on the top of the mounting plate 38, the inner wall shape of the mounting groove 381 matches the outer wall cross-sectional shape of the fixed shaft 32, the bottom of the mounting plate 38 is provided with a square through groove 382; the filter screen frame 33 is annular structure which is sleeved on the outside of the fixed shaft 32, the surface of the filter screen frame 33 is annular array of several square water filtering holes 39, the filter screen 40 is sleeved on the outside of the filter screen frame 33; the drainage frame 34 is "V" shaped structure, the two ends of the drainage frame 34 pass through the axial of the fixed shaft 32 and are connected with the two side inner end walls of the secondary filter shell 31, one side inner end wall of the secondary filter shell 31 is provided with a secondary filter drainage port 41 which is communicated with the secondary filter water outlet pipe 37; one side outer wall of the secondary filter shell 31 is provided with a water inlet pipe hole above which the secondary filter water inlet pipe 35 is arranged, the outer wall of the secondary filter water inlet pipe 35 is connected with several spray heads 36 which are directed to the filter screen 40 at equal intervals, the filter screen frame 33 is driven to rotate by the driving mechanism 5, the outer end of the secondary filter water inlet pipe 35 is communicated with the inner cavity of the transition groove 2 through the water pump 4, by setting the secondary filter device 3, the tail water can be further filtered, and the filter screen 40 with different mesh can be replaced according to the requirement.

[0030] The filtering process of the secondary filtering device: the filter screen frame 33 and the filter screen 40 sleeved outside the filter screen frame 33 are driven to rotate by the driving mechanism 5, then the tail water in the transition tank 2 filtered by the primary filtering device 1 is pumped to the secondary filtering water inlet pipe 35 by the water pump 4 and then sprayed to the surface of the rotating filter screen 40 by the spray head 31, the tail water filtered by the filter screen 40 is collected by the "V"-shaped water discharge frame 34 and flows to the secondary filtering water outlet pipe 37; the tail water sprayed to the filter screen 40 by the spray head 31 but not bounced to the inner cavity of the secondary filtering shell 31 by the filter screen 40 flows back to the transition tank 2 through the secondary filtering overflow pipe 42 and is filtered again by the water pump 4; and the tail water below the secondary filtering overflow pipe 42 can be used to clean the suspended particulate matters on the surface of the filter screen 40.

[0031] Further, the driving mechanism 5 comprises a driving motor 51, a driving shaft 52, a driving gear 53 and a driven gear 54, the driven gear 54 is axially fixed to one end of the outer wall of the filter screen frame 33, the driving motor 51 is fixed above one side of the outer wall of the secondary filtering shell 31, the output end of the driving motor 51 is connected with the outer end of the driving shaft 52, the inner end of the driving shaft 52 penetrates the outer wall of the secondary filtering shell 31 and is axially fixedly connected with the driving gear 53, the driving gear 53 is matched with the driven gear 54, when the filter screen 40 needs to be used, the driving motor 51 is started to drive the driving shaft 52, the driving gear 53 and the driven gear 54 to rotate in turn, so as to drive the filter screen frame 33 and the filter screen 40 sleeved outside the filter screen frame 33 to rotate. Preferably, the two ends of the filter screen frame 33 can be sleeved outside the fixed shaft 32 through bearing seats, so as to ensure that the filter screen frame 33 will not be axially displaced during use.

[0032] Further, the driven gear 54 is fixed to one end of the outer wall of the filter screen frame 33, and the limiting ring 44 is fixed to the other end of the outer wall, so that the two ends of the filter screen 40 are limited by the driven gear 54 and the limiting ring 44 respectively, so as to ensure that the filter screen 40 will not be axially displaced during filtering; and through the shielding of the driven gear 54 and the limiting ring 44, the water sprayed to the filter screen 40 by the spray head 36 can be prevented from bouncing to the inner cavity of the secondary filtering shell 31 as much as possible.

[0033] Further, the lower part of the secondary filter outflow pipe 37 is provided with a secondary filter overflow pipe 42, the height of the secondary filter overflow pipe 42 is higher than the lowest point of the filter screen 40, because the process of the nozzle 36 spraying the water in the secondary filter inflow pipe 35 to the filter screen 40, part of the water will not enter the drainage rack 34 through the filter screen 40, but rebound to the inner cavity of the secondary filter shell 31, by setting the secondary filter overflow pipe 42, the water level can be kept slightly higher than the lowest point of the filter screen 40, so that the filter screen 40 can automatically clean the dirt on the surface of the filter screen 40 when the lowest point passes the water in the secondary filter shell 31 in the process of rotation, and the water exceeding the secondary filter overflow pipe 42 can flow back to the transition tank 2, and be extracted by the water pump 4 again for filtration.

[0034] Further, the lower part of the secondary filter shell 31 is provided with a cleaning pipe 43, when the filtration is completed, the cleaning pipe 43 can be opened to drain the water accumulated in the secondary filter shell 31, and clean the secondary filter shell 31.

[0035] The above is only the embodiment of the present application, and does not limit the patent range of the present application, any equivalent transformation or direct or indirect application in the related technical field by using the content of the present application specification and drawings is also included in the patent protection range of the present application.

Claims

1. A device for removing suspended particles from large flow aquaculture effluent, characterized by: The device comprises a primary filtering device (1), a transition tank (2) and a secondary filtering device (3), The primary filtering device (1) comprises a primary filtering shell (11), a central pipe (12), a water inlet pipe (13), a partition plate (14), water permeation holes (15), a baffle (16) and a water outlet pipe (17). The primary filtering shell (11) is in a hollow top-opened cylindrical structure, and is provided with a sewage outlet (18) at the bottom. The partition plate (14) in a circular shape is connected to the upper inner wall of the primary filtering shell (11). The central hole in the middle of the partition plate (14) is used for fixing the central pipe (12). The top end of the central pipe (12) is higher than the top end of the primary filtering shell (11). The outer wall of the primary filtering shell (11) and the central pipe (12) is provided with a through hole for the inner end of the water inlet pipe (13) to pass through. The inner end of the water inlet pipe (13) is in communication with the middle inner cavity of the central pipe (12). The baffle (16) in an annular shape is fixed to the middle upper surface of the partition plate (14). The surface of the partition plate (14) on the inner side of the baffle (16) is provided with a plurality of water permeation holes (15). The outer wall of the primary filtering shell (11) is provided with the water outlet pipe (17) above. The height of the water outlet pipe (17) is not lower than the top end height of the baffle (16). The outer end of the water outlet pipe (17) is in communication with the inner cavity bottom of the transition tank (2). The secondary filtering device (3) is in communication with the inner cavity of the transition tank (2) through a water pump (4).

2. The device for removing suspended particles from tail water of large-flow aquaculture according to claim 1, characterized in that: The inner end of the water inlet pipe (13) is provided with a bending section (131). The bending section (131) is perpendicular to the water inlet pipe (13). The bending section (131) is coaxial with the central pipe (12).

3. The device for removing suspended particles from tail water of large-flow aquaculture according to claim 2, characterized in that: The bottom end of the central pipe (12) is connected with a reflecting plate (19) through a plurality of connecting rods (21). The reflecting plate (19) is in a circular structure, and the outer diameter thereof is greater than the outer diameter of the central pipe (12). The bottom end of the connecting rod (21) is connected with the outer edge of the reflecting plate (19). The top end of the connecting rod (21) is connected with the bottom outer edge of the central pipe (12).

4. The device for removing suspended particles from tail water of large-flow aquaculture according to claim 3, characterized in that: The top end of the baffle (16) is annularly arranged with a plurality of filtering teeth (20). The filtering teeth (20) are in an isosceles triangular structure. The bottom of the primary filtering shell (11) is in a conical structure with the outer diameter gradually decreasing from top to bottom.

5. The device for removing suspended particles from tail water of large-flow aquaculture according to claim 1, characterized in that: The secondary filter device (3) comprises a secondary filter shell (31), a fixed shaft (32), a filter screen frame (33), a drainage frame (34), a secondary filter water inlet pipe (35), a spray head (36), a secondary filter water outlet pipe (37) and a mounting plate (38). The secondary filter shell (31) is in a hollow square structure with an open top. The fixed shaft (32) is in an annular structure with an open top. One end of the fixed shaft (32) is fixed to one side end wall of the secondary filter shell (31). The other end of the fixed shaft (32) is fixed in a mounting groove (381) at the top of the mounting plate (38). The inner wall of the mounting groove (381) is matched with the outer wall cross-sectional shape of the fixed shaft (32). The bottom of the mounting plate (38) is provided with a square through groove (382). The filter screen frame (33) is in an annular structure and is sleeved on the outside of the fixed shaft (32). The surface of the filter screen frame (33) is provided with a plurality of square water filtering holes (39) in an annular array. The filter screen (40) is sleeved on the outside of the filter screen frame (33). The drainage frame (34) is in a "V" shape structure. The two ends of the drainage frame (34) pass through the axial direction of the fixed shaft (32) and are connected to the two side inner end walls of the secondary filter shell (31). One side inner end wall of the secondary filter shell (31) is provided with a secondary filter drainage opening (41) which is communicated with the secondary filter water outlet pipe (37). One side outer wall of the secondary filter shell (31) is provided with a water inlet pipe hole for the secondary filter water inlet pipe (35). The outer wall of the secondary filter water inlet pipe (35) is connected with a plurality of spray heads (36) which are directed to the filter screen (40) at equal intervals. The filter screen frame (33) is driven to rotate by a driving mechanism (5). The outer end of the secondary filter water inlet pipe (35) is communicated with the inner cavity of the transition groove (2) through the water pump (4).

6. The device for removing suspended particles from tail water of large-flow aquaculture according to claim 5, characterized in that: The driving mechanism (5) comprises a driving motor (51), a driving shaft (52), a driving gear (53) and a driven gear (54). The axial direction of the driven gear (54) is fixed to one end of the outer wall of the filter screen frame (33). The driving motor (51) is fixed to one side of the outer wall of the secondary filter shell (31). The output end of the driving motor (51) is connected with the outer end of the driving shaft (52). The inner end of the driving shaft (52) passes through the outer wall of the secondary filter shell (31) and is fixedly connected with the axial direction of the driving gear (53). The driving gear (53) is matched with the driven gear (54) to engage.

7. The device for removing suspended particles from tail water of large-flow aquaculture according to claim 6, characterized in that: The driven gear (54) is fixed to one end of the outer wall of the filter screen frame (33). The other end of the outer wall is fixed with a limiting ring (44).

8. The device for removing suspended particles from tail water of large-flow aquaculture according to claim 7, characterized in that: The secondary filter overflow pipe (42) is arranged below the secondary filter water outlet pipe (37). The height of the secondary filter overflow pipe (42) is higher than the lowest point of the filter screen (40). The outer wall of the secondary filter shell (31) is provided with a cleaning pipe (43).

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