Aeration biological treatment device for livestock and poultry breeding wastewater

Abstract

The invention discloses an aeration biological treatment device for livestock and poultry breeding wastewater, and the invention relates to the technical field of sewage treatment. Since there is a large amount of feces in livestock and poultry breeding wastewater, and the feces have a certain viscosity, the feces accumulate during the aeration process and adhere to the bottom of the equipment, causing the pipe to be blocked, thereby reducing the aeration treatment effect. The aeration biological treatment device for livestock and poultry breeding wastewater rotates under the impact of the water flow when the wastewater is introduced, and the scraping blade at the bottom end of the spiral scraper is used to scrape the bottom of the inner wall of the aeration tank, so that the feces-like sticky solids in the livestock and poultry breeding wastewater cannot be precipitated and adhered to the bottom of the aeration tank. At the same time, the rotating spiral scraper drives the wastewater and air inside the aeration tank to rotate, so that the air and the wastewater are fully in contact, avoiding the accumulation of feces in the livestock and poultry breeding wastewater and causing blockage, while improving the aeration treatment effect.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to an aeration biological treatment device for livestock and poultry breeding wastewater. Background Art

[0002] At present, livestock and poultry breeding wastewater mainly comes from livestock and poultry urine, feces flushing water and farm cleaning water. For example, in pig farms, pig urine and feces contain a large amount of organic matter, nitrogen, phosphorus and other nutrients. After flushing the pig pen with water, these substances will be discharged along with the flushing water to form breeding wastewater. The livestock and poultry breeding wastewater aeration biological treatment device is a device used to treat high-concentration organic wastewater generated in the livestock and poultry breeding process. It mainly uses the metabolism of microorganisms to decompose organic matter in wastewater under aerobic conditions, thereby reducing the concentration of pollutants such as chemical oxygen demand, biochemical oxygen demand and ammonia nitrogen in the wastewater, so that it meets the discharge standard or the standard for reuse;

[0003] Since there is a large amount of feces in livestock and poultry wastewater, and the feces have a certain viscosity, during the aeration process, the feces accumulate and adhere to the bottom of the equipment, causing blockage of the pipeline and reducing the aeration treatment effect. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an aerated biological treatment device for livestock and poultry breeding wastewater, comprising:

[0005] A frame, an air pump is installed on the top of the frame, and a separation mechanism and an aeration mechanism are installed inside the frame;

[0006] The aeration mechanism and the separation mechanism are used to aerate the wastewater and separate the solid and liquid of the aerated wastewater respectively, and a connecting pipe is fixedly installed between the aeration mechanism and the separation mechanism;

[0007] A water inlet pipe is installed at the bottom of the outer side of the aeration mechanism, and a water outlet pipe is installed at the bottom of the outer side of the separation mechanism;

[0008] Wherein, the aeration mechanism includes an aeration tank, the number of which is two and which are symmetrically installed along the central position of the axis of the frame, and a connecting tube is installed on the top of the aeration tank, an air guide tube is fixedly installed on the bottom end of the connecting tube, an air guide assembly is fixedly installed on the bottom end of the air guide tube, a connecting ring is rotatably installed on the outer side of the air guide assembly, a spiral scraper is fixedly installed on the outer side of the connecting ring, the spiral scraper rotates under the impact of water flow when the wastewater is introduced, and the scraping blade at the bottom end of the spiral scraper is used to scrape the bottom of the inner wall of the aeration tank, so that the sticky solids such as feces in the livestock and poultry breeding wastewater cannot be precipitated and adhered to the bottom of the aeration tank, and at the same time, the rotating spiral scraper drives the wastewater and air inside the aeration tank to rotate, so that the air and wastewater are fully in contact, avoiding blockage caused by accumulation of feces in the livestock and poultry breeding wastewater, and improving the aeration treatment effect at the same time, a scraping blade is provided at the bottom end of the spiral scraper and the scraping blade is tightly fitted with the bottom of the inner wall of the aeration tank, and the spiral scraper is evenly installed along the center position of the connecting ring.

[0009] Preferably, the top of the connecting cylinder is connected to the air pump through a pipeline, the inner diameter of the air guide cylinder gradually decreases from top to bottom, a hollow floating ring is slidably installed on the inner wall of the aeration tank, a slip ring is fixedly installed on the top of the hollow floating ring, and the top of the slip ring is inclined inward from bottom to top. Through the cooperation of the slip ring and the hollow floating ring, the hollow floating ring and the slip ring are always located at the top layer of the liquid surface, so that when the wastewater is discharged, the top of the slip ring contacts the top of the inner wall of the aeration tank, so that the wastewater and air overflow along the empty groove of the slip ring and are discharged by the connecting pipe. When the wastewater and air move upward, due to the limited overflow gap of the empty groove, part of the wastewater gathers inward, and the air guide component and the spiral scraper are cooperated to improve the contact uniformity between air and wastewater. At the same time, when the outer side of the slip ring is evenly opened with empty grooves, the bottom of the outer side of the aeration tank is fixedly connected to the water inlet pipe, and the top of the outer side of the aeration tank is fixedly connected to the connecting pipe.

[0010] Preferably, the air guide assembly comprises a hollow cover, a groove cylinder is fixedly installed at the central position of the inner wall of the hollow cover, the top of the inner wall of the groove cylinder is fixedly connected to the bottom end of the air guide cylinder, the outer side of the groove cylinder is evenly provided with through grooves, the outer side of the hollow cover is rotatably adapted to the inner wall of the connecting ring, the top of the hollow cover is evenly provided with circular grooves, and a pump cylinder is fixedly installed at the circular groove of the hollow cover, a circular hole is provided at the bottom of the pump cylinder, and a slide groove is provided on the outer side of the pump cylinder, a buckle ring is slidably installed at the slide groove of the pump cylinder, and a blocking block is fixedly installed at the bottom of the buckle ring, and the blocking block and the buckle ring are slidably adapted in the pump cylinder when no gas is discharged. , block the circular hole of the pump cylinder to prevent the continuously discharged wastewater from entering the hollow cover along the circular hole, so that the wastewater is discharged along the air path, causing the wastewater flow path to change, affecting the wastewater treatment process, the block is adapted to the circular hole of the pump cylinder, and a fixing ring is fixedly installed on the top of the pump cylinder, and vertical plates are provided on both sides of the top of the fixing ring, and an impeller is rotatably installed between the vertical plates. Through the impeller blades, the gas flows upward after being discharged into the wastewater, driving the impeller to rotate, so that the bubbles surging upward are broken up into smaller bubbles by the rotating impeller, thereby increasing the contact area between the gas and the wastewater and improving the aeration treatment effect, and the outer side of the impeller is evenly provided with impellers.

[0011] Preferably, the separation mechanism includes a sedimentation box, the top of the sedimentation box close to the aeration tank side is provided with a water inlet, the connecting pipe is installed at the water inlet of the sedimentation box, the bottom of the sedimentation box away from the aeration tank side is fixedly connected to one end of the outlet pipe, the inner wall of the sedimentation box is fixedly installed with an inclined panel, the inclined panel cooperates with the guide plate, when the wastewater flows downward along the gap between the top trough plate and the sieve trough plate, the guide plate guides the downward-flowing wastewater, so that the wastewater after filtering large solids flows to the lowest position of the top of the inclined panel, to avoid the wastewater directly surging upward without sedimentation time, resulting in fine sediment unable to be separated from the wastewater, the top of the inclined panel is inclined toward the side away from the water inlet and there is a gap between the top and the top of the inner wall of the sedimentation box, support plates are fixedly installed on both sides of the center position of the top of the inclined panel, the top of the support plate close to the water inlet is fixedly installed with side panels, the outer side of the side panel A strip groove is opened, and a top groove plate is slidably installed between the side plates, and a sieve groove plate is fixedly installed on the side of the opposite surface of the side plate close to the water inlet, the sieve groove plate is an arc-shaped plate that protrudes toward the water inlet at the center position, and the sieve grooves are symmetrically opened on the outer side of the sieve groove plate, the top of the sieve groove plate is tightly fitted with the top of the inner wall of the sedimentation box, and a pad is fixedly installed on the bottom of the sieve groove plate, and a top rod is evenly arranged on the side of the top groove plate close to the sieve groove plate, and the top rod is slidably adapted to the sieve groove of the sieve groove plate, and cooperates with the sieve grooves on both sides of the sieve groove plate through the arc protruding at the center position of the sieve groove plate to prevent wastewater from directly impacting the filtering position, causing large solids to be blocked in the filtering sieve groove, resulting in the filtration work of the sieve groove plate being unable to operate normally, and elastic blocks are fixedly installed on both ends of the top groove plate away from the sieve groove plate, and a guide plate is fixedly installed on the bottom of the support plate close to the water inlet, and the bottom end of the guide plate is inclined toward the water inlet side.

[0012] The present invention provides an aeration biological treatment device for livestock and poultry breeding wastewater. It has the following beneficial effects:

[0013] 1. The aeration biological treatment device for livestock and poultry breeding wastewater rotates under the impact of water flow when the wastewater is introduced, and uses the scraping blade at the bottom of the spiral scraper to scrape the bottom of the inner wall of the aeration tank, so that the sticky solids such as feces in the livestock and poultry breeding wastewater cannot be precipitated and adhered to the bottom of the aeration tank. At the same time, the rotating spiral scraper drives the wastewater and air inside the aeration tank to rotate, so that the air and wastewater are fully in contact, avoiding blockage caused by the accumulation of feces in the livestock and poultry breeding wastewater, and improving the aeration treatment effect.

[0014] 2. The aeration biological treatment device for livestock and poultry breeding wastewater, through the cooperation of the slip ring and the hollow floating ring, makes the hollow floating ring and the slip ring always located at the top layer of the liquid surface, so that when the wastewater is discharged, the top of the slip ring contacts the top of the inner wall of the aeration tank, so that the wastewater and air overflow along the empty groove of the slip ring and are discharged by the connecting pipe. When the wastewater and air move upward, due to the limited overflow gap of the empty groove, part of the wastewater gathers inward, and cooperates with the air guide component and the spiral scraper to improve the contact uniformity between air and wastewater.

[0015] 3. The aeration biological treatment device for livestock and poultry breeding wastewater, through the sliding adaptation of the blocking block and the buckle ring in the pump cylinder, blocks the circular hole of the pump cylinder when there is no gas discharge, to prevent the continuously discharged wastewater from entering the hollow cover along the circular hole, so that the wastewater is discharged along the air path, causing the wastewater flow path to change, affecting the wastewater treatment process.

[0016] 4. The aeration biological treatment device for livestock and poultry breeding wastewater uses the impeller blades to cause the gas to surge upward after being discharged into the wastewater, driving the impeller to rotate, so that the upward surging bubbles are broken up into smaller bubbles by the rotating impeller, thereby increasing the contact area between the gas and the wastewater and improving the aeration treatment effect.

[0017] 5. The aerated biological treatment device for livestock and poultry breeding wastewater cooperates with the guide plate through the inclined panel and the guide plate, so that when the wastewater flows downward along the gap between the top trough plate and the screen trough plate, the guide plate guides the downward-flowing wastewater, so that the wastewater after filtering out large solids flows to the lowest position on the top of the inclined panel, to avoid the wastewater directly surging upward without sedimentation time, resulting in the inability to separate fine sediment from the wastewater. At the same time, the raised arc at the center of the screen trough plate cooperates with the sieve slots on both sides of the sieve slot plate to avoid the wastewater directly impacting the filtration position, resulting in large solids being blocked in the filtration sieve slot, resulting in the filtration work of the sieve slot plate being unable to operate normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the external structure of an aeration biological treatment device for livestock and poultry breeding wastewater according to the present invention;

[0019] Figure 2 This is a structural side view of an aeration biological treatment device for livestock and poultry breeding wastewater according to the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of the aeration mechanism of the present invention;

[0021] Figure 4 This is a structural anatomical diagram of the aeration mechanism of the present invention;

[0022] Figure 5 It is a partial structural schematic diagram of the aeration mechanism of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the gas guide assembly of the present invention;

[0024] Figure 7 It is a structural anatomical diagram of the gas guide component of the present invention;

[0025] Figure 8 It is a schematic diagram of the separation mechanism structure of the present invention;

[0026] Fig. 9 It is a structural anatomical diagram of the separation mechanism of the present invention;

[0027] Fig.10 It is a partial structural schematic diagram of the separation mechanism of the present invention;

[0028] Fig.11 It is a partial structural side view of the separation mechanism of the present invention.

[0029] In the figure: 1, frame; 2, aeration mechanism; 3, separation mechanism; 4, air pump; 5, water inlet pipe; 6, connecting pipe; 7, water outlet pipe; 21, aeration tank; 22, connecting tube; 23, air guide tube; 24, slip ring; 25, hollow floating ring; 26, air guide assembly; 27, spiral scraper; 28, connecting ring; 261, hollow cover; 262, impeller; 263, fixing ring; 264, pump air cylinder; 265, buckle ring; 266, blocking block; 267, groove cylinder; 31, sedimentation box; 32, inclined panel; 33, pad; 34, side panel; 35, support plate; 36, elastic block; 37, top groove plate; 38, sieve groove plate; 39, guide plate. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0031] The first embodiment, as Figures 1 to 5 As shown, the present invention provides a technical solution: an aeration biological treatment device for livestock and poultry breeding wastewater, comprising:

[0032] A frame 1, an air pump 4 is installed on the top of the frame 1, and a separation mechanism 3 and an aeration mechanism 2 are installed inside the frame 1;

[0033] The aeration mechanism 2 and the separation mechanism 3 are used to aerate the wastewater and separate the solid and liquid of the aerated wastewater respectively, and a connecting pipe 6 is fixedly installed between the aeration mechanism 2 and the separation mechanism 3;

[0034] A water inlet pipe 5 is installed at the bottom of the outer side of the aeration mechanism 2, and a water outlet pipe 7 is installed at the bottom of the outer side of the separation mechanism 3;

[0035] The aeration mechanism 2 includes an aeration tank 21, the number of which is two and which are symmetrically installed along the center position of the axis of the frame 1, and a connecting tube 22 is installed on the top of the aeration tank 21, and an air guide tube 23 is fixedly installed on the bottom end of the connecting tube 22, and an air guide component 26 is fixedly installed on the bottom end of the air guide tube 23, and a connecting ring 28 is rotatably installed on the outer side of the air guide component 26, which is connected to the water inlet pipe 5 through the bottom of the outer side of the aeration tank 21, so that wastewater enters the aeration tank 21 from the bottom of the inner wall of the aeration tank 21. While the wastewater is being introduced, the air is conducted along the pipeline through the air pump 4, so that the air passes through the connecting tube 22 and the air guide tube 23 in turn and enters the air guide component 26, and the air is guided out along the bottom of the inner wall of the aeration tank 21 through the air guide component 26, and is fully contacted and reacted with the introduced wastewater for aeration treatment, and the air is connected. A spiral scraper 27 is fixedly installed on the outer side of the ring 28. A scraping blade is provided at the bottom end of the spiral scraper 27 and the scraping blade is tightly fitted with the bottom of the inner wall of the aeration tank 21. In the process of continuous introduction of wastewater, the introduced wastewater impacts the spiral scraper 27 on the outer side of the connecting ring 28, so that the connecting ring 28 and the spiral scraper 27 rotate under the impact of the water flow. In the process of rotation, the bottom of the inner wall of the aeration tank 21 is scraped by the scraping blade at the bottom end of the spiral scraper 27, so that the solids originally existing in the wastewater and the solids generated during the aeration reaction are scraped by the rotating spiral scraper 27, and the wastewater and the solids in the wastewater are driven to prevent them from settling and accumulating. After continuous accumulation, the wastewater is introduced into the separation mechanism 3 through the connecting pipe 6 at the top of the aeration tank 21 for solid-liquid separation, and the spiral scrapers 27 are evenly installed along the center position of the connecting ring 28.

[0036] The top of the connecting tube 22 is connected to the air pump 4 through a pipeline, the inner diameter of the air guide tube 23 gradually decreases from top to bottom, a hollow floating ring 25 is slidably installed on the inner wall of the aeration tank 21, a slip ring 24 is fixedly installed on the top of the hollow floating ring 25, the top of the slip ring 24 is inclined inward from bottom to top, and the outer side of the slip ring 24 is evenly provided with empty grooves, the bottom of the outer side of the aeration tank 21 is fixedly connected to the water inlet pipe 5, when the wastewater level in the aeration tank 21 continues to rise, the buoyancy of the hollow floating ring 25 in the liquid drives the slip ring 24 to rise and fall with the wastewater level, and the wastewater and air are gathered inwardly by the characteristic that the top of the slip ring 24 is inclined inward from bottom to top, and aeration treatment is carried out in conjunction with the air guide component 26, and the top of the outer side of the aeration tank 21 is fixedly connected to the connecting pipe 6.

[0037] The second embodiment is based on the first embodiment. Figure 6 to Figure 7As shown, the air guide assembly 26 includes a hollow cover 261, a grooved cylinder 267 is fixedly installed at the center position of the inner wall of the hollow cover 261, the top of the inner wall of the grooved cylinder 267 is fixedly connected to the bottom end of the air guide cylinder 23, the outer side of the grooved cylinder 267 is evenly provided with through grooves, the outer side of the hollow cover 261 is rotatably adapted to the inner wall of the connecting ring 28, and the top of the hollow cover 261 is evenly provided with circular grooves. Through the connection between the grooved cylinder 267 and the air guide cylinder 23, air enters the grooved cylinder 267 along the air guide cylinder 23, and enters the hollow cover 261 through the through groove of the grooved cylinder 267, and is discharged through the pump cylinder 264 at the circular groove of the hollow cover 261, so that the gas, under the action of air pressure, pushes the blocking block 266 and the buckle 265 upward, opens the gap between the blocking block 266 and the circular hole of the pump cylinder 264, so that The gas is conducted upward, and a pump cylinder 264 is fixedly installed at the circular groove of the hollow cover 261, a circular hole is opened at the bottom of the pump cylinder 264, and a slide groove is opened on the outside of the pump cylinder 264, a buckle ring 265 is slidably installed at the slide groove of the pump cylinder 264, a blocking block 266 is fixedly installed at the bottom of the buckle ring 265, and the blocking block 266 is adapted to the circular hole of the pump cylinder 264, and a fixing ring 263 is fixedly installed at the top of the pump cylinder 264. In the process of export, the air flow and water flow drive the impeller 262 to rotate, and the impeller 262 breaks up the exported bubbles when rotating, so that the air is fully in contact with the wastewater, and vertical plates are arranged on both sides of the top of the fixing ring 263, and the impeller 262 is rotatably installed between the vertical plates, and the outer side of the impeller 262 is evenly provided with blades.

[0038] The third embodiment is based on the first and second embodiments. Figures 8 to 11 As shown, the separation mechanism 3 includes a sedimentation tank 31, and a water inlet is provided at the top of the sedimentation tank 31 near the aeration tank 21. The connecting pipe 6 is installed at the water inlet of the sedimentation tank 31. The bottom of the sedimentation tank 31 away from the aeration tank 21 is fixedly connected to one end of the outlet pipe 7. An inclined panel 32 is fixedly installed on the inner wall of the sedimentation tank 31. The top of the inclined panel 32 is inclined toward the side away from the water inlet and there is a gap between the top and the top of the inner wall of the sedimentation tank 31. When the aerated wastewater is introduced into the separation mechanism 3 through the connecting pipe 6, The wastewater is introduced into the sedimentation tank 31 through the connecting pipe 6. When introduced, the wastewater first enters the gap surrounded by the pad 33, the screen slot plate 38 and the sedimentation tank 31, so that the introduced wastewater is first filtered and separated by the screen slots on the white surface of the screen slot plate 38 for large solids in the wastewater. At the same time, the raised arc at the center of the screen slot plate 38 guides the wastewater and filters the wastewater in cooperation with the screen slots on both sides, so that the wastewater cannot impact the screen slot position first. Support plates 35 are fixedly installed on both sides of the center position of the top of the inclined panel 32.

[0039] A side plate 34 is fixedly installed on the top of the support plate 35 near the water inlet. A groove is provided on the outer side of the side plate 34, and a top groove plate 37 is slidably installed between the side plates 34. A sieve groove plate 38 is fixedly installed on the side of the opposite surface of the side plate 34 near the water inlet. The sieve groove plate 38 is an arc-shaped plate that protrudes toward the water inlet at the center, and sieve grooves are symmetrically provided on the outer side of the sieve groove plate 38. The top of the sieve groove plate 38 is tightly fitted with the top of the inner wall of the sedimentation box 31, and a pad 33 is fixedly installed on the bottom of the sieve groove plate 38. Top rods are evenly arranged on one side of the top groove plate 37 near the sieve groove plate 38. After the wastewater passes through the sieve groove plate 38, it is blocked by the top groove plate 37, so that the wastewater flows downward along the gap between the sieve groove plate 38 and the top groove plate 37. In the process of flowing, The guide plate 39 guides the wastewater, and the bottom end of the guide plate 39 is tilted toward the water inlet position to make the wastewater impact the connection position between the top of the inclined plate 32 and the inner wall of the sedimentation box 31. After the wastewater at the bottom of the inclined plate 32 is continuously accumulated, the liquid level continues to rise, and the fine solids in the wastewater are precipitated at the connection position between the inclined plate 32 and the sedimentation box 31. The upper layer of wastewater without sediment flows along the gap between the sedimentation box 31 at the top of the inclined plate 32 to the bottom of the inclined plate 32, and is discharged by the outlet pipe 7. The top rod is slidably adapted to the sieve slot of the sieve slot plate 38. Elastic blocks 36 are fixedly installed at both ends of the top slot plate 37 away from the sieve slot plate 38. The guide plate 39 is fixedly installed at the bottom of the support plate 35 close to the water inlet, and the bottom end of the guide plate 39 is inclined toward the water inlet side.

[0040] When in use, wastewater from livestock and poultry breeding is introduced into the aeration mechanism 2 through the water inlet pipe 5, and air is pumped into the aeration mechanism 2 along the pipeline through the air pump 4, so that the wastewater entering the aeration mechanism 2 and the air are fully contacted and mixed under the action of the aeration mechanism 2, and the wastewater is aerated. After being treated by the aerator, the wastewater is introduced into the separation mechanism 3 through the connecting pipe 6, and the precipitate produced after the aeration treatment of the wastewater is separated from the solid debris already existing in the wastewater by the separation mechanism 3, and the separated wastewater is led out of the device along the outlet pipe 7 to complete the aeration biological treatment of the wastewater.

[0041] In the aeration mechanism 2, the bottom of the outer side of the aeration tank 21 is connected to the water inlet pipe 5, so that the wastewater enters the aeration tank 21 from the bottom of the inner wall of the aeration tank 21. While the wastewater is being introduced, the air is conducted along the pipeline by the air pump 4, so that the air enters the air guide component 26 through the connecting tube 22 and the air guide tube 23 in turn, and the air is guided out along the bottom of the inner wall of the aeration tank 21 through the air guide component 26, and fully contacts and reacts with the introduced wastewater to perform aeration treatment. At the same time, in the process of continuous introduction of wastewater, the introduced wastewater impacts the spiral scraper 27 on the outer side of the connecting ring 28, so that the connecting ring 28 and the spiral scraper 27 rotate under the impact of the water flow. In the process of rotation, the spiral scraper 27 The scraping blade at the bottom end of the scraper 27 scrapes the bottom of the inner wall of the aeration tank 21, so that the solids originally existing in the wastewater and the solids generated by the aeration reaction are driven by the rotating spiral scraper 27 to prevent the wastewater and the solids in the wastewater from settling and accumulating. After the wastewater accumulates continuously, it is introduced into the separation mechanism 3 through the connecting pipe 6 at the top of the aeration tank 21 for solid-liquid separation. At the same time, when the wastewater level in the aeration tank 21 continues to rise, the buoyancy of the hollow floating ring 25 in the liquid drives the slip ring 24 to rise and fall with the wastewater level. The top of the slip ring 24 is inclined inward from bottom to top, so that the wastewater and air are gathered inward, and aeration treatment is carried out in conjunction with the air guide component 26.

[0042] In the air guide component 26, the air enters the groove cylinder 267 along the air guide cylinder 23 through the connection between the groove cylinder 267 and the air guide cylinder 23, and enters the hollow cover 261 through the through groove of the groove cylinder 267, and is discharged through the pump cylinder 264 at the circular groove of the hollow cover 261. Under the action of air pressure, the gas pushes the block 266 and the buckle 265 upward, opens the gap between the block 266 and the circular hole of the pump cylinder 264, and conducts the gas upward. At the same time, in the process of discharge, the air flow and water flow drive the impeller 262 to rotate, and the impeller 262 breaks up the discharged bubbles when the blades rotate, so that the air is fully in contact with the wastewater.

[0043] When the aerated wastewater is introduced into the separation mechanism 3 through the connecting pipe 6, the wastewater is introduced into the sedimentation tank 31 through the connecting pipe 6. When introduced, the wastewater first enters the gap formed by the pad 33, the screen slot plate 38 and the sedimentation tank 31, so that the introduced wastewater is first filtered and separated by the screen slots on the white surface of the screen slot plate 38 for large solids in the wastewater. At the same time, the raised arc at the center of the screen slot plate 38 guides the wastewater and cooperates with the screen slots on both sides to filter the wastewater, so that the wastewater cannot impact the screen slot position first. After the wastewater passes through the screen slot plate 38, it is blocked by the top slot plate 37, so that the wastewater The wastewater flows downward along the gap between the sieve slot plate 38 and the top slot plate 37. During the flow, the wastewater is guided by the guide plate 39. The bottom end of the guide plate 39 is tilted toward the water inlet position, so that the wastewater impacts the connection position between the top of the inclined plate 32 and the inner wall of the sedimentation box 31. After the wastewater at the bottom of the inclined plate 32 is continuously accumulated, the liquid level continues to rise, and the fine solids in the wastewater are precipitated at the connection position between the inclined plate 32 and the sedimentation box 31. The upper layer of wastewater without sediment flows along the gap between the top of the inclined plate 32 and the sedimentation box 31 to the bottom of the inclined plate 32, and is discharged from the outlet pipe 7.

[0044] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An aeration biological treatment device for livestock and poultry breeding wastewater, characterized in that: include: A frame (1), wherein an air pump (4) is installed on the top of the frame (1), and a separation mechanism (3) and an aeration mechanism (2) are installed inside the frame (1); The aeration mechanism (2) and the separation mechanism (3) are used to aerate the wastewater and to separate the solid and liquid of the aerated wastewater respectively, and a connecting pipe (6) is fixedly installed between the aeration mechanism (2) and the separation mechanism (3); A water inlet pipe (5) is installed at the bottom of the outer side of the aeration mechanism (2), and a water outlet pipe (7) is installed at the bottom of the outer side of the separation mechanism (3); The aeration mechanism (2) comprises an aeration tank (21), wherein the number of the aeration tanks (21) is two and they are symmetrically installed along the central position of the axis of the frame (1), and a connecting cylinder (22) is installed on the top of the aeration tank (21), an air guide cylinder (23) is fixedly installed on the bottom end of the connecting cylinder (22), an air guide component (26) is fixedly installed on the bottom end of the air guide cylinder (23), a connecting ring (28) is rotatably installed on the outer side of the air guide component (26), a spiral scraper (27) is fixedly installed on the outer side of the connecting ring (28), a scraping blade is provided at the bottom end of the spiral scraper (27) and the scraping blade is tightly fitted with the bottom of the inner wall of the aeration tank (21), and the spiral scraper (27) is evenly installed along the center position of the connecting ring (28); The top end of the connecting cylinder (22) is connected to the air pump (4) via a pipeline, the inner diameter of the air guide cylinder (23) gradually decreases from top to bottom, a hollow floating ring (25) is slidably mounted on the inner wall of the aeration tank (21), a slip ring (24) is fixedly mounted on the top of the hollow floating ring (25), and the top end of the slip ring (24) is inclined inward from bottom to top; The outer side of the slip ring (24) is evenly provided with hollow grooves, the bottom of the outer side of the aeration tank (21) is fixedly connected to the water inlet pipe (5), and the top of the outer side of the aeration tank (21) is fixedly connected to the connecting pipe (6); The air guide assembly (26) comprises a hollow cover (261), a grooved cylinder (267) is fixedly mounted at the center of the inner wall of the hollow cover (261), the top of the inner wall of the grooved cylinder (267) is fixedly connected to the bottom end of the air guide cylinder (23), through grooves are evenly formed on the outer side of the grooved cylinder (267), and the outer side of the hollow cover (261) is rotatably matched with the inner wall of the connecting ring (28); The top of the hollow cover (261) is evenly provided with circular grooves, and a pump cylinder (264) is fixedly installed at the circular grooves of the hollow cover (261), a circular hole is provided at the bottom of the pump cylinder (264), and a slide groove is provided on the outer side of the pump cylinder (264), a buckle ring (265) is slidably installed at the slide groove of the pump cylinder (264), and a blocking block (266) is fixedly installed at the bottom of the buckle ring (265), and the blocking block (266) is adapted to the circular hole of the pump cylinder (264); A fixing ring (263) is fixedly mounted on the top of the pump cylinder (264), vertical plates are arranged on both sides of the top of the fixing ring (263), and an impeller (262) is rotatably mounted between the vertical plates, and blades are evenly arranged on the outer side of the impeller (262); The separation mechanism (3) comprises a sedimentation tank (31), a water inlet is provided at the top of the sedimentation tank (31) on a side close to the aeration tank (21), the connecting pipe (6) is installed at the water inlet of the sedimentation tank (31), and the bottom of the sedimentation tank (31) on a side away from the aeration tank (21) is fixedly connected to one end of the water outlet pipe (7); An inclined panel (32) is fixedly mounted on the inner wall of the sedimentation box (31); the top of the inclined panel (32) is inclined toward a side away from the water inlet and there is a gap between the top and the top of the inner wall of the sedimentation box (31); support plates (35) are fixedly mounted on both sides of the center position of the top of the inclined panel (32); A side plate (34) is fixedly mounted on the top of the support plate (35) on the side close to the water inlet, a groove is provided on the outer side of the side plate (34), and a top groove plate (37) is slidably mounted between the side plates (34). A sieve groove plate (38) is fixedly mounted on the opposite side of the side plate (34) on the side close to the water inlet, the sieve groove plate (38) is an arc-shaped plate with a center position protruding toward the water inlet, and sieve grooves are symmetrically provided on the outer side of the sieve groove plate (38), the top of the sieve groove plate (38) is tightly fitted with the top of the inner wall of the sedimentation box (31), and a pad (33) is fixedly mounted on the bottom of the sieve groove plate (38).

2. The aeration biological treatment device for livestock and poultry breeding wastewater according to claim 1, characterized in that: A top rod is evenly arranged on a side of the top slot plate (37) close to the sieve slot plate (38), and the top rod is slidably matched with the sieve slot of the sieve slot plate (38). Elastic blocks (36) are fixedly mounted on both ends of the top slot plate (37) away from the sieve slot plate (38). A guide plate (39) is fixedly mounted on the bottom of the support plate (35) close to the water inlet, and the bottom end of the guide plate (39) is inclined toward the water inlet.

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