A kind of livestock breeding wastewater treatment equipment

Abstract

The present invention relates to the technical field of sewage treatment, and in particular to a livestock breeding sewage treatment equipment. Its technical scheme includes: an auxiliary separation part, the auxiliary separation part includes a driving roller, a filter cloth, a gravity displacement part, a supporting roller, a paddle plate and a striking plate, both ends of the driving roller are rotatably connected to the wastewater treatment tank, the driving roller reels the filter cloth, the inner wall of the wastewater treatment tank and the gravity displacement part is slidably connected to the driving roller, the side of the gravity displacement part is rotatably connected to the supporting roller, the top of the supporting roller supports the filter cloth, and the end of the supporting roller is fixedly installed with a paddle plate. In the present invention, when flushing the filter cloth, the more particles intercepted by the filter cloth, the greater the distance the supporting roller moves downward, the greater the swing amplitude of the striking plate driven by the paddle plate at the end of the supporting roller, and the greater the force of the striking plate striking the filter cloth, and the greater the knocking force is correspondingly increased according to the amount of particles intercepted by the filter cloth, thereby improving the cleaning effect.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to livestock breeding sewage treatment equipment. Background Art

[0002] With the development of economy and society, the breeding industry has been rapidly developed in my country. However, due to the breeding process, urine, feces, feed residues and flushing water will be produced in the farms. These wastewaters contain a large number of bacteria. If not properly treated, they will have a great impact on the environment. The discharge volume of breeding wastewater is large, with high organic concentration, many particles, dark color, high ammonia nitrogen and organic phosphorus content, which needs to be treated in time to reduce the impact on the environment.

[0003] The patent document with announcement number CN116216920A discloses an aquaculture wastewater treatment device. When the filter cloth is rolled up, the second water inlet pipe supplies water to a plurality of first nozzles, and the biofilm attached to the upper surface of the filter cloth is flushed through the plurality of first nozzles, and the water flow rate is kept moderate.

[0004] However, when the biofilm is washed to clean the objects on its surface, due to the presence of particles in the aquaculture wastewater, the particles on the biofilm are washed by the water flow, and the particles move along the biofilm, which will scratch the biofilm and affect its service life. Summary of the invention

[0005] The purpose of the present invention is to propose a livestock breeding wastewater treatment device to solve the problem in the background technology that particles are washed and moved by water, causing the biofilm to be scratched.

[0006] The technical solution of the present invention is a livestock breeding wastewater treatment equipment, comprising: a wastewater treatment tank, wherein the interior of the wastewater treatment tank is divided into a wastewater treatment area and a particle separation area, wherein two particle separation areas are provided, respectively provided on the left and right sides of the wastewater treatment area;

[0007] An auxiliary separation member, the auxiliary separation member comprises a driving roller, a filter cloth, a gravity displacement member, a supporting roller, a paddle plate and a striking plate, both ends of the driving roller are rotatably connected to the wastewater treatment tank, the driving roller reels the filter cloth, the inner wall of the wastewater treatment tank and the gravity displacement member is slidably connected above the driving roller, the side of the gravity displacement member is rotatably connected to the supporting roller, the top of the supporting roller supports the filter cloth, the end of the supporting roller is fixedly installed with the paddle plate, the inner wall of the wastewater treatment tank and the striking plate is rotatably connected directly below the paddle plate, and the striking plate is in contact with the filter cloth at one end away from the paddle plate;

[0008] A biofilm is laid on the top of the filter cloth, and the filter cloth intercepts sediments in the aquaculture wastewater.

[0009] Optionally, auxiliary separation parts are provided on the inner wall of the wastewater treatment tank and at the two particle separation areas, and the two driving rollers rotate respectively at the two particle separation areas inside the wastewater treatment tank, one driving roller reels the filter cloth, and the other driving roller releases the filter cloth.

[0010] Optionally, the gravity displacement member includes a support plate, a slide plate and a return spring, both ends of the support plate are fixedly connected to the wastewater treatment tank, the slide plate is perpendicular to the support plate, and the slide plate slides up and down on the support plate, the slide plate adopts a T-shaped structure, the horizontal part of the slide plate is elastically connected to the return spring between the support plate, and the side of the vertical part of the slide plate is rotatably connected to the support roller.

[0011] Optionally, a soft water pipe is fixedly installed on the top of the support plate, the water outlet of the soft water pipe is perpendicular to the filter cloth, and a pressure plate is fixedly installed on the side of the slide plate, and the soft water pipe is located directly below the pressure plate.

[0012] Optionally, multiple soft water pipes are provided and are evenly distributed in a straight line along the support plate. The striking plate adopts a U-shaped structure. Multiple vibrating rods evenly distributed in a straight line are fixedly installed on the side of the striking plate facing the filter cloth, and the end of the vibrating rod adopts a hemispherical structure.

[0013] Optionally, it also includes a fitting part, which includes a transmission part, a screw, a screw plate, a pad block and a soft film. The transmission part is arranged at the end of the driving roller shaft, and the screw is arranged at the bottom of the transmission part. The screw plate is threadedly connected to the screw plate at the shaft of the screw, and the pad block is fixedly installed on the top of the screw plate. The top of the pad block is fixedly installed with an inclined soft film, and the soft film is in contact with the biofilm on the surface of the filter cloth.

[0014] Optionally, the transmission member includes a partition plate, a first bevel gear, a second bevel gear and a positioning plate, the first bevel gear is fixedly mounted on the end of the driving roller shaft, the first bevel gear is meshingly connected to the second bevel gear, a screw is fixedly mounted on the bottom of the second bevel gear, the partition plate is fixedly mounted inside the wastewater treatment tank, the partition plate separates the wastewater treatment area and the particle separation area, two parallel positioning plates are fixedly mounted on the side of the partition plate, and the shaft of the screw is rotatably connected to the positioning plate.

[0015] Optionally, it also includes a position control component, which includes a multi-section telescopic rod, an upper splint, a guide rod and a lower splint. The multi-section telescopic rod is fixedly installed on the inner wall of the wastewater treatment tank, the upper splint is fixedly installed on the bottom of the multi-section telescopic rod, the inner wall of the upper splint is slidably connected to the guide rod, the bottom of the guide rod is fixedly installed on the lower splint, and the lower splint and the upper splint clamp the filter cloth.

[0016] Optionally, a limit plate is fixedly installed on the top of the guide rod, and a clearance hole for the guide rod to slide is opened on the upper clamping plate. Four clearance holes are provided and are respectively located near the corners of the upper clamping plate.

[0017] Optionally, a stepping motor is fixedly mounted on the end of the driving roller shaft, a water inlet pipe is fixedly mounted on the side of the wastewater treatment tank, and a filter material for fine filtering of the wastewater is fixedly mounted inside the wastewater treatment tank and below the filter cloth.

[0018] Compared with the prior art, the present invention has at least one of the following beneficial technical effects:

[0019] In the present invention, since the filter cloth is more easily clogged than the filter material, and backwashing not only cleans the filter cloth but also cleans the filter material, when the filter cloth is clogged, one driving roller rotates to reel in the filter cloth to move the clogged part of the filter cloth to the particle separation area, and cleans it by spraying water through a soft water pipe, while the other driving roller releases the filter cloth and changes the position of the filter cloth. There is no need to backwash the filter material, thus avoiding frequent backwashing that affects the efficiency of aquaculture wastewater treatment.

[0020] Furthermore, when flushing, the more particles intercepted by the filter cloth, the greater the distance the support roller moves downward, the greater the swing amplitude of the striking plate driven by the paddle plate at the end of the support roller, and the greater the force with which the striking plate strikes the filter cloth. According to the amount of particles intercepted by the filter cloth, the striking force is increased accordingly to improve the particle cleaning effect, thereby reducing the water consumption required for cleaning the filter cloth.

[0021] Furthermore, the soft film sticks the biofilm separated from the filter cloth during cleaning to the filter cloth again, thereby improving the stability of the biofilm and the filter cloth. As the drive roller reels the filter cloth, the soft film moves downward, so that the distance between the soft film and the filter cloth remains stable, that is, the force applied by the soft film to the biofilm is stable, avoiding the gradual reduction of the distance between the soft film and the filter cloth, resulting in excessive force applied by the soft film to the biofilm, thereby damaging the biofilm.

[0022] Furthermore, by fully contracting the multi-section telescopic rod, the height of the lower clamping plate is increased, so that the filter cloth between the lower clamping plate and the supporting roller is in a horizontal state, thereby preventing particles on the filter cloth from falling into the wastewater treatment area along the inclined surface, and preventing particles from remaining in the wastewater treatment area after the filter cloth position is shifted and clogging the filter cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the overall structure of an embodiment of the present invention is provided;

[0024] Figure 2 A schematic cross-sectional view of a wastewater treatment pool structure according to an embodiment of the present invention is provided;

[0025] Figure 3 for Figure 2 A part of the hit plate structure enlarged schematic diagram;

[0026] Figure 4 A schematic diagram of the filter cloth structure of an embodiment of the present invention is given;

[0027] Figure 5 A schematic diagram of the structure of a paddle according to an embodiment of the present invention is provided;

[0028] Figure 6 for Figure 5 A magnified schematic diagram of the soft water pipe structure in part B;

[0029] Figure 7 A schematic front view of a first bevel gear structure according to an embodiment of the present invention is provided;

[0030] Figure 8 A schematic diagram of the film structure of an embodiment of the present invention is given;

[0031] Fig. 9 A schematic diagram of the lower clamping plate structure according to an embodiment of the present invention is given.

[0032] 1. Wastewater treatment tank; 2. Water inlet pipe; 3. Wastewater treatment area; 4. Particle separation area; 5. Auxiliary separation member; 51. Drive roller; 52. Filter cloth; 53. Support plate; 54. Slide plate; 55. Support roller; 56. Return spring; 57. Paddle plate; 58. Strike plate; 59. Vibrating rod; 510. Pressing plate; 511. Soft water pipe; 6. Fitting member; 61. Partition plate; 62. First bevel gear; 63. Second bevel gear; 64. Positioning plate; 65. Screw; 66. Screw plate; 67. Heightening block; 68. Soft film; 7. Position control member; 71. Multi-section telescopic rod; 72. Upper splint; 73. Guide rod; 74. Lower splint; 75. Limiting plate; 76. Clearance hole. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0034] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0035] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Embodiment 1: This embodiment proposes a livestock breeding wastewater treatment equipment, such as Figure 1 As shown, it includes a wastewater treatment pool 1, the interior of the wastewater treatment pool 1 is divided into a wastewater treatment area 3 and a particle separation area 4, and two particle separation areas 4 are provided, which are respectively arranged on the left and right sides of the wastewater treatment area 3. An inlet pipe 2 is fixedly installed on the side of the wastewater treatment pool 1, and the aquaculture wastewater enters the inlet pipe 2.

[0039] like Figure 2 and Figure 3 As shown, an auxiliary separation member 5 is provided on the inner wall of the wastewater treatment tank 1 and located at the particle separation zone 4. The auxiliary separation member 5 includes a driving roller 51, a filter cloth 52, a gravity displacement member, a supporting roller 55, a paddle 57 and a striking plate 58. Both ends of the driving roller 51 are rotatably connected to the wastewater treatment tank 1. The driving roller 51 reels the filter cloth 52. A stepper motor is fixedly installed at the end of the driving roller 51. A biofilm is laid on the top of the filter cloth 52. The filter cloth 52 intercepts the sediment in the aquaculture wastewater. A filter material is fixedly installed inside the wastewater treatment tank 1 and below the filter cloth 52. The aquaculture wastewater is coarsely filtered through the filter cloth 52 and the biofilm, and the aquaculture wastewater is finely filtered through the filter material.

[0040] like Figure 4As shown, auxiliary separation parts 5 are provided on the inner wall of the wastewater treatment tank 1 and at two particle separation areas 4, and two driving rollers 51 rotate at the two particle separation areas 4 inside the wastewater treatment tank 1, respectively, one of the driving rollers 51 rolls up the filter cloth 52, and the other driving roller 51 releases the filter cloth 52. Since the filter cloth 52 is more easily blocked than the filter material, backwashing not only cleans the filter cloth 52 but also cleans the filter material, which affects the aquaculture wastewater treatment efficiency. When the filter cloth 52 is blocked and the filter material is not blocked, one of the driving rollers 51 rolls up the filter cloth 52, and the other driving roller 51 releases the filter cloth 52, so that the blocked part of the filter cloth 52 moves to the particle separation area 4, and the unblocked part of the filter cloth 52 moves to the wastewater treatment area 3, without backwashing the filter material and the filter cloth 52, reducing the impact of backwashing on the filter material, and also reducing the number of backwashing, avoiding frequent backwashing affecting the wastewater treatment efficiency.

[0041] like Figure 3 and Figure 5 As shown, the gravity displacement member is slidably connected to the inner wall of the wastewater treatment tank 1 and located above the driving roller 51. The gravity displacement member includes a support plate 53, a slide plate 54 and a reset spring 56. Both ends of the support plate 53 are fixedly connected to the wastewater treatment tank 1. The slide plate 54 is perpendicular to the support plate 53, and the slide plate 54 slides up and down at the support plate 53. The slide plate 54 adopts a T-shaped structure. The reset spring 56 is elastically connected between the horizontal part of the slide plate 54 and the support plate 53. The side of the vertical part of the slide plate 54 is rotatably connected to the support roller 55. The side of the gravity displacement member is rotatably connected to the support roller 55. The top of the support roller 55 supports the filter cloth 52. The end of the support roller 55 is fixedly installed with a paddle plate 57. The inner wall of the wastewater treatment tank 1 and located directly below the paddle plate 57 are rotatably connected to the striking plate 58. The end of the striking plate 58 away from the paddle plate 57 contacts the filter cloth 52.

[0042] When the filter cloth 52 intercepts a lot of particulate matter, the filter cloth 52 presses down on the supporting roller 55 supporting it, and the supporting roller 55 drives the slide plate 54 to move downward and stretch the reset spring 56. At this time, the paddle plate 57 at the end of the support roller 55 moves downward, and the striking plate 58 enters the rotation path of the paddle plate 57. The rotation of the paddle plate 57 drives the striking plate 58 to rotate, and the other end of the striking plate 58 strikes the filter cloth 52. Since there is no biofilm at the position where the striking plate 58 strikes the filter cloth 52, it will not affect the biofilm. The striking plate 58 knocks the particles intercepted by the filter cloth 52 to make them detach from the filter cloth 52.

[0043] The more particles intercepted by the filter cloth 52, the greater the distance the support roller 55 moves downward, the greater the swing amplitude of the striking plate 58 driven by the paddle 57 at the end of the support roller 55, and the greater the force with which the striking plate 58 strikes the filter cloth 52, thereby improving the cleaning effect.

[0044] When the amount of particulate matter intercepted by the filter cloth 52 is small, the striking plate 58 is separated from the prying plate 57 to prevent the striking plate 58 from frequently striking the filter cloth 52 and shortening the service life of the filter cloth 52 .

[0045] like Figure 5 and Figure 6 As shown, a soft water pipe 511 is fixedly installed on the top of the support plate 53, and the water outlet of the soft water pipe 511 is perpendicular to the filter cloth 52. A pressing plate 510 is fixedly installed on the side of the slide plate 54, and the soft water pipe 511 is located directly below the pressing plate 510. A plurality of soft water pipes 511 are provided, and are evenly distributed in a straight line along the support plate 53. The striking plate 58 adopts a U-shaped structure. A plurality of vibration rods 59 are fixedly installed on the side of the striking plate 58 facing the filter cloth 52, and the ends of the vibration rods 59 adopt a hemispherical structure.

[0046] Multiple soft water pipes 511 spray water on the filter cloth 52. There is no biofilm at the location where the soft water pipes 511 spray water. Due to the existence of the filter cloth 52, the impact force of water is reduced by the filter cloth 52, and the impact force is transferred to the biofilm through the filter cloth 52, thereby reducing the degree of adhesion between particles and the biofilm. Water will flow along the filter cloth 52 to wash the particles on the surface of the biofilm.

[0047] The slide plate 54 drives the pressure plate 510 to move downward, and the pressure plate 510 and the support plate 53 flatten the soft water pipe 511. The more particles intercepted on the filter cloth 52, the flatter the support plate 53 is. When the water volume remains unchanged, the flow speed of the water flowing at the support plate 53 is faster, thereby increasing the impact force of the water on the filter cloth 52.

[0048] In this embodiment, since the filter cloth 52 is more susceptible to clogging than the filter material, and backwashing not only cleans the filter cloth 52 but also cleans the filter material, when the filter cloth 52 is clogged, one driving roller 51 rotates and reels the filter cloth 52 to move the clogged part of the filter cloth 52 to the particle separation area 4, and cleans it by spraying water through the soft water pipe 511, while the other driving roller 51 releases the filter cloth 52 and changes the position of the filter cloth 52. There is no need to backwash the filter material, thereby avoiding frequent backwashing that affects the efficiency of aquaculture wastewater treatment. During flushing, the more particulate matter the filter cloth 52 intercepts, the greater the distance the support roller 55 moves downward, the greater the swing amplitude of the striking plate 58 driven by the paddle 57 at the end of the support roller 55, and the greater the force with which the striking plate 58 strikes the filter cloth 52, thereby improving the cleaning effect.

[0049] Example 2: Based on Example 1, this example proposes a livestock breeding wastewater treatment device, such as Figure 7 and Figure 8As shown, a fitting part 6 is provided inside the wastewater treatment tank 1 and located at the particle separation zone 4. The fitting part 6 includes a transmission part, a screw 65, a screw plate 66, a pad 67 and a soft film 68. The transmission part includes a partition plate 61, a first bevel gear 62, a second bevel gear 63 and a positioning plate 64. The first bevel gear 62 is fixedly mounted on the end of the driving roller shaft 51, the first bevel gear 62 is meshed and connected with the second bevel gear 63, the bottom of the second bevel gear 63 is fixedly mounted with a screw 65, the partition plate 61 is fixedly mounted inside the wastewater treatment tank 1, the partition plate 61 separates the wastewater treatment zone 3 and the particle separation zone 4, and two parallel positioning plates 64 are fixedly mounted on the side of the partition plate 61, and the rod body of the screw 65 is rotatably connected with the positioning plate 64.

[0050] When the driving roller 51 reels the filter cloth 52, the driving roller 51 drives the first bevel gear 62 to rotate, thereby driving the second bevel gear 63 to rotate. The screw plate 66 is threadedly connected to the shaft of the screw 65, and a padding block 67 is fixedly installed on the top of the screw plate 66. An inclined soft film 68 is fixedly installed on the top of the padding block 67, and the soft film 68 contacts the biofilm on the surface of the filter cloth 52.

[0051] As the drive roller 51 reels the filter cloth 52, the filter cloth 52 reeled on the drive roller 51 becomes thicker and thicker. At this time, the drive roller 51 rotates using the first bevel gear 62 and the second bevel gear 63, so that the screw 65 rotates to move the screw plate 66 downward, so that the soft film 68 moves downward, so that the distance between the soft film 68 and the filter cloth 52 remains stable.

[0052] In this embodiment, as the driving roller 51 reels the filter cloth 52, the soft film 68 moves downward, so that the distance between the soft film 68 and the filter cloth 52 remains stable, that is, the force applied by the soft film 68 to the biofilm is stable, thereby preventing the distance between the soft film 68 and the filter cloth 52 from gradually decreasing, resulting in excessive force applied by the soft film 68 to the biofilm, thereby damaging the biofilm.

[0053] Embodiment 3: Based on the above embodiment 1 or 2, this embodiment proposes a livestock breeding wastewater treatment device, such as Figure 2 and Fig. 9 As shown, a position control member 7 is provided inside the wastewater treatment tank 1 and located at the wastewater treatment area 3. The position control member 7 includes a multi-section telescopic rod 71, an upper clamping plate 72, a guide rod 73 and a lower clamping plate 74. The multi-section telescopic rod 71 is fixedly installed on the inner wall of the wastewater treatment tank 1, the upper clamping plate 72 is fixedly installed on the bottom of the multi-section telescopic rod 71, the inner wall of the upper clamping plate 72 is slidably connected to the guide rod 73, the bottom of the guide rod 73 is fixedly installed on the lower clamping plate 74, and the filter cloth 52 is clamped between the lower clamping plate 74 and the upper clamping plate 72.

[0054] The multi-section telescopic rod 71 is fully extended, the lower clamping plate 74 is against the filter material, the lower clamping plate 74 and the guide rod 73 move up and down, the lower clamping plate 74 and the upper clamping plate 72 clamp the filter cloth 52, and the filter cloth 52 is positioned so that it always fits the filter material.

[0055] A limit plate 75 is fixedly installed on the top of the guide rod 73, and a clearance hole 76 for the guide rod 73 to slide is opened on the upper clamping plate 72. Four clearance holes 76 are provided and are respectively located at the corners close to the upper clamping plate 72. When the multi-section telescopic rod 71 is fully retracted, the lower clamping plate 74 and the upper clamping plate 72 move upward, the lower clamping plate 74 is flush with the support roller shaft 55, and the filter cloth 52 between the lower clamping plate 74 and the support roller shaft 55 is in a horizontal state.

[0056] When the filter material needs to be backwashed, the multi-section telescopic rod 71 is completely retracted, thereby raising the height of the filter cloth 52 to prevent the backwash water from affecting the filter cloth 52 .

[0057] In this embodiment, the multi-section telescopic rod 71 is fully retracted to increase the height of the lower clamping plate 74, so that the filter cloth 52 between the lower clamping plate 74 and the supporting roller 55 is in a horizontal state, thereby preventing particles on the filter cloth 52 from falling into the wastewater treatment area 3 along the inclined surface, and preventing particles from remaining in the wastewater treatment area 3 after the position of the filter cloth 52 is moved and clogging the filter cloth 52.

[0058] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A livestock breeding wastewater treatment equipment, characterized in that: include: A wastewater treatment pool (1), wherein the interior of the wastewater treatment pool (1) is divided into a wastewater treatment area (3) and a particle separation area (4), and two particle separation areas (4) are provided, which are respectively provided on the left and right sides of the wastewater treatment area (3); An auxiliary separation member (5), the auxiliary separation member (5) comprising a driving roller (51), a filter cloth (52), a gravity displacement member, a supporting roller (55), a paddle plate (57) and a striking plate (58), both ends of the driving roller (51) being rotatably connected to the wastewater treatment tank (1), the driving roller (51) rolling up the filter cloth (52), the inner wall of the wastewater treatment tank (1) and located above the driving roller (51) being slidably connected to the gravity displacement member, the side of the gravity displacement member being rotatably connected to the supporting roller (55), the top of the supporting roller (55) supporting the filter cloth (52), the end of the supporting roller (55) being fixedly mounted with the paddle plate (57), the inner wall of the wastewater treatment tank (1) and located directly below the paddle plate (57) being rotatably connected to the striking plate (58), the end of the striking plate (58) away from the paddle plate (57) being in contact with the filter cloth (52); A biofilm is laid on the top of the filter cloth (52), and the filter cloth (52) intercepts sediments in the aquaculture wastewater; Auxiliary separation components (5) are provided on the inner wall of the wastewater treatment tank (1) and at the two particle separation areas (4); the two driving rollers (51) rotate respectively at the two particle separation areas (4) inside the wastewater treatment tank (1); one of the driving rollers (51) reels in the filter cloth (52) and the other driving roller (51) releases the filter cloth (52); The gravity displacement member comprises a support plate (53), a slide plate (54) and a return spring (56); both ends of the support plate (53) are fixedly connected to the wastewater treatment tank (1); the slide plate (54) is perpendicular to the support plate (53), and the slide plate (54) slides up and down on the support plate (53); the slide plate (54) adopts a T-shaped structure; a return spring (56) is elastically connected between a horizontal portion of the slide plate (54) and the support plate (53); and a side portion of a vertical portion of the slide plate (54) is rotatably connected to a support roller shaft (55); A soft water pipe (511) is fixedly mounted on the top of the support plate (53), and a water outlet of the soft water pipe (511) is perpendicular to the filter cloth (52). A pressing plate (510) is fixedly mounted on the side of the slide plate (54), and the soft water pipe (511) is located directly below the pressing plate (510).

2. The livestock breeding wastewater treatment equipment according to claim 1, characterized in that: A plurality of soft water pipes (511) are provided and are distributed in a straight line and at equal intervals along the support plate (53); the striking plate (58) has a U-shaped structure; a plurality of vibration rods (59) distributed in a straight line and at equal intervals are fixedly mounted on one side of the striking plate (58) facing the filter cloth (52); and the ends of the vibration rods (59) have a hemispherical structure.

3. The livestock breeding wastewater treatment equipment according to claim 2 is characterized in that: The invention also comprises a fitting member (6), wherein the fitting member (6) comprises a transmission member, a screw (65), a screw plate (66), a padding block (67) and a soft film (68), wherein the transmission member is arranged at the end of the driving roller shaft (51), the screw (65) is arranged at the bottom of the transmission member, the screw plate (66) is threadedly connected at the shaft of the screw (65), the padding block (67) is fixedly mounted on the top of the screw plate (66), the soft film (68) arranged obliquely is fixedly mounted on the top of the padding block (67), and the soft film (68) is in contact with the biofilm on the surface of the filter cloth (52).

4. The livestock breeding wastewater treatment equipment according to claim 3 is characterized by: The transmission member comprises a partition plate (61), a first bevel gear (62), a second bevel gear (63) and a positioning plate (64); the first bevel gear (62) is fixedly mounted on the end of the driving roller shaft (51); the first bevel gear (62) is meshingly connected with the second bevel gear (63); a screw rod (65) is fixedly mounted on the bottom of the second bevel gear (63); the partition plate (61) is fixedly mounted inside the wastewater treatment tank (1); the partition plate (61) separates the wastewater treatment area (3) and the particle separation area (4); two positioning plates (64) arranged in parallel are fixedly mounted on the side of the partition plate (61); and the shaft of the screw rod (65) is rotatably connected to the positioning plate (64).

5. The livestock breeding wastewater treatment equipment according to claim 4 is characterized in that: The invention also comprises a position control member (7), the position control member (7) comprising a multi-section telescopic rod (71), an upper clamping plate (72), a guide rod (73) and a lower clamping plate (74), the multi-section telescopic rod (71) being fixedly mounted on the inner wall of the wastewater treatment tank (1), the upper clamping plate (72) being fixedly mounted on the bottom of the multi-section telescopic rod (71), the inner wall of the upper clamping plate (72) being slidably connected to the guide rod (73), the lower clamping plate (74) being fixedly mounted on the bottom of the guide rod (73), and the lower clamping plate (74) and the upper clamping plate (72) clamp the filter cloth (52).

6. The livestock breeding wastewater treatment equipment according to claim 5, characterized in that: A limiting plate (75) is fixedly mounted on the top of the guide rod (73), and a clearance hole (76) for the guide rod (73) to slide is provided on the upper clamping plate (72). Four clearance holes (76) are provided and are respectively located near the corners of the upper clamping plate (72).

7. The livestock breeding wastewater treatment equipment according to claim 1, characterized in that: A stepping motor is fixedly mounted on the end of the driving roller (51), a water inlet pipe (2) is fixedly mounted on the side of the wastewater treatment tank (1), and filter material for finely filtering wastewater is fixedly mounted inside the wastewater treatment tank (1) and below the filter cloth (52).

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