Wastewater treatment device based on nitrogen and phosphorus removal technology

Abstract

The invention relates to the technical field of wastewater treatment, discloses a wastewater treatment device based on a nitrogen and phosphorus removal technology, and solves the problem that the existing wastewater treatment device based on the nitrogen and phosphorus removal technology is poor in filter screen anti-blocking effect and discharge pipe dredging effect. By integrating efficient filtering, automatic cleaning and mixing, the wastewater treatment efficiency and effect are remarkably improved, the filter plates effectively block large particles, the scraper plates driven by the micro motors and the nail rollers are combined to ensure continuous smoothness of the surfaces of the filter plates and filter holes, blockage is avoided, chemicals and sewage are uniformly mixed, nitrogen and phosphorus removal is rapidly achieved, and the wastewater treatment effect is improved. The spiral piece in the discharging pipe promotes smooth discharging and prevents blocking, meanwhile, the brush and the scraping block are attached to automatically clean dirt on the inner wall, long-term stable operation of the system is maintained, the automation degree of wastewater treatment is improved, the maintenance cost is reduced, and the environment-friendly requirement is met.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to a wastewater treatment device based on denitrification and dephosphorization technology. Background Art

[0002] With the increase in population and rapid industrial development, nitrogen and phosphorus in sewage have become the main sources of water pollution. The presence of nitrogen will lead to eutrophication of water bodies, accelerate the formation of algal blooms, and seriously affect water quality. Excessive discharge of phosphorus will lead to the accumulation of nutrients in the water, triggering the massive reproduction of algae, and thus destroying the balance of the aquatic ecosystem. Therefore, it is of great significance to develop efficient sewage treatment denitrification and phosphorus removal technologies.

[0003] For example, the patent with publication number CN219652777U discloses a domestic sewage denitrification and dephosphorization treatment device, which is provided with a cleaning filter component and a stirring component, wherein the filter plate filters solid impurities in the domestic sewage, and the scraper scrapes the impurities remaining on the surface of the filter plate into the collection frame, and the stirring rod is driven by the rotating column to stir the sewage in the treatment box, so that the sewage treatment agent and the sewage are fully mixed, and the domestic sewage is filtered and treated, which can avoid the solid impurities from affecting the treatment effect of the sewage;

[0004] During the wastewater treatment process, sewage often contains a large amount of solid debris, such as leaves, paper scraps, and plastic fragments. These debris are easily accumulated on the filter when passing through the filter, causing the filter to be blocked, affecting the normal flow and filtering effect of the wastewater. Although the CN219652777U patent mentions that the debris on the upper surface of the filter plate is scraped into the collection frame by a scraper, it is difficult for the scraper to clean some impurities stuck in the filter holes, which causes the filter to be blocked, affecting the treatment efficiency.

[0005] In response to the above problems, an innovative design was carried out based on the original wastewater treatment device based on denitrification and phosphorus removal technology. Summary of the invention

[0006] The purpose of the present invention is to provide a wastewater treatment device based on denitrification and phosphorus removal technology. By adopting this device to work, the problems of poor filter blockage and poor unblocking effect of the discharge pipe of the existing wastewater treatment device based on denitrification and phosphorus removal technology are solved.

[0007] To achieve the above object, the present invention provides the following technical solution: a wastewater treatment device based on denitrification and phosphorus removal technology, comprising a housing and a filter plate arranged inside the housing, wherein a cleaning structure for handling debris on the surface of the filter plate is arranged at the top of the housing;

[0008] The cleaning structure includes a micro motor arranged at the top of the housing, a screw rod arranged at the output end of the micro motor, a moving block is threadedly connected to the surface of the screw rod, and a scraper is arranged on one side of the moving block;

[0009] One side of the screw rod is provided with an anti-blocking structure for clearing the filter holes of the filter plate, the anti-blocking structure comprises a movable block threadedly connected to the surface of the screw rod, a connecting plate is provided at the bottom end of the movable block, both sides of the connecting plate are rotatably connected with a rotating shaft, a nail roller is provided on one side of the rotating shaft, a plurality of nail heads are evenly distributed on the surface of the nail roller, the spacing between adjacent nail heads is equal to the spacing between the filter holes, and the nail roller is used to push out the debris that blocks the filter holes;

[0010] A discharge pipe is connected to one side of the outer shell, and a dredging structure for preventing blockage is rotatably connected inside the discharge pipe. The dredging structure includes a bevel gear group vertically driven at the output end of the motor, a rotating rod is provided on one side of the bevel gear group, a spiral member for stabilizing the discharge is provided on the surface of the rotating rod, and a brush and a scraper block for cleaning and scraping dirt on the inner wall of the discharge pipe are provided on the outer ring of the spiral member.

[0011] Furthermore, a motor is arranged at the bottom end of the shell, an output end of the motor passes through a rod groove provided on the bottom surface of the shell, and a mixing rod is arranged at the output end of the motor.

[0012] Furthermore, there are two groups of screw rods symmetrically distributed about the housing, one group of screw rods is connected to the output end of the micro motor, and the two groups of screw rods are synchronously driven by belts sleeved on the surface.

[0013] Furthermore, a fixing plate is arranged at the top of the shell, and four groups of fixing plates are arranged, one group of the fixing plates is used to fix the micro motor, and the other three groups of the fixing plates are rotatably connected to the screw rod.

[0014] Furthermore, a gear is provided at one end of the rotating shaft, a groove is provided on the inner wall of the shell, a rack is fixed inside the groove, and the gear is meshed with the rack.

[0015] Furthermore, the length of the spike roller is equal to the width of the filter plate.

[0016] Furthermore, scrapers are distributed on both sides of the spike roller, and the two groups of scrapers are used to push the debris on the surface of the filter screen out of the outer shell.

[0017] Furthermore, the dredging structure includes a positioning plate arranged on the inner wall of the shell, the positioning plate is rotatably connected with a rotating rod, a bevel gear 2 is arranged at one end of the rotating rod, and the dredging structure also includes a bevel gear 1 arranged on the surface of the motor output end, and the bevel gear 1 is meshed with the bevel gear 2.

[0018] Furthermore, the brushes and scraping blocks are arranged in multiple groups at equal intervals, and the multiple groups of brushes and scraping blocks are staggered.

[0019] Furthermore, an opening is provided on the surface of the shell, and a push-open structure is provided on one side, the push-open structure includes a push plate provided on one side of the scraper, one end of the push plate is inclined, and the push-open structure also includes a slide groove provided on the surface of the shell, the inside of the slide groove is slidably connected with a slider, a spring is provided at one end of the slider, and the end of the spring away from the slider is connected to the slide groove, and a baffle for blocking the opening is provided on one side of the slider, the size of the baffle is larger than the size of the opening, the bottom end of the baffle is inclined, and a driven plate is provided on the side of the baffle close to the scraper, and the end of the driven plate close to the push plate is inclined, and the inclined surface of the push plate matches the inclined surface of the driven plate.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention proposes a wastewater treatment device based on denitrification and phosphorus removal technology. The existing wastewater treatment devices based on denitrification and phosphorus removal technology have poor filter screen anti-blocking and discharge pipe dredging effects. The present invention significantly improves the efficiency and effect of wastewater treatment by integrating high-efficiency filtration, automatic cleaning and mixing. The filter plate effectively blocks large particles. The scraper and nail roller combination driven by a micro motor ensures that the filter plate surface and filter holes are continuously unobstructed to avoid blockage. The agent and sewage are mixed evenly to quickly achieve denitrification and phosphorus removal. The spiral part in the discharge pipe promotes smooth discharge and prevents blockage. At the same time, the brush and scraper block are attached to automatically clean the dirt on the inner wall, thereby maintaining the long-term stable operation of the system, improving the automation level of wastewater treatment, reducing maintenance costs, and meeting environmental protection requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall three-dimensional cross-sectional expansion structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the cleaning structure, the anti-blocking structure and the filter plate of the present invention;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the anti-blocking structure of the present invention;

[0026] Figure 5 For the present invention Figure 4 The three-dimensional structure diagram is enlarged at A in the middle;

[0027] Figure 6 It is a three-dimensional structural schematic diagram of the dredging structure and the discharge pipe of the present invention;

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the push-open structure of the present invention.

[0029] In the figure: 1. shell; 2. motor; 3. mixing rod; 4. filter plate; 5. cleaning structure; 51. fixed plate; 52. micro motor; 53. belt; 54. screw rod; 55. moving block; 56. scraper; 6. anti-blocking structure; 61. groove; 62. movable block; 63. connecting plate; 64. rotating shaft; 65. nail roller; 66. gear; 67. rack; 7. discharge pipe; 8. dredging structure; 81. bevel gear one; 82. bevel gear two; 83. positioning plate; 84. rotating rod; 85. spiral member; 86. brush; 87. scraper; 9. push-open structure; 91. push plate; 92. driven plate; 93. baffle; 94. slider; 95. spring; 96. slide groove; 10. opening. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0032] Combination Figure 1-Figure 3 A wastewater treatment device based on denitrification and phosphorus removal technology includes a shell 1 and a filter plate 4 arranged inside the shell 1. A cleaning structure 5 for handling debris on the surface of the filter plate 4 is arranged at the top of the shell 1.

[0033] The present invention will be further described below in conjunction with the embodiments.

[0034] See also Figure 1-Figure 7 The cleaning structure 5 includes a micro motor 52 arranged at the top of the shell 1, a screw rod 54 arranged at the output end of the micro motor 52, a moving block 55 is threadedly connected to the surface of the screw rod 54, and a scraper 56 is arranged on one side of the moving block 55. There are two groups of screw rods 54 symmetrically distributed about the shell 1, one group of the screw rods 54 is connected to the output end of the micro motor 52, and the two groups of the screw rods 54 are synchronously driven by belts 53 sleeved on the surface. A fixing plate 51 is arranged at the top of the shell 1, and four groups of the fixing plates 51 are arranged, one group of the fixing plates 51 is used to fix the micro motor 52, and the other three groups of the fixing plates 51 are rotatably connected to the screw rod 54, so as to facilitate the removal of debris on the surface of the filter plate 4.

[0035] One side of the screw rod 54 is provided with an anti-blocking structure 6 for dredging the filter holes of the filter plate 4. The anti-blocking structure 6 includes a movable block 62 threadedly connected to the surface of the screw rod 54. A connecting plate 63 is provided at the bottom end of the movable block 62. A rotating shaft 64 is rotatably connected to both sides of the connecting plate 63. A nail roller 65 is provided on one side of the rotating shaft 64. A plurality of nail heads are evenly distributed on the surface of the nail roller 65. The spacing between adjacent nail heads is equal to the spacing between the filter holes. The nail roller 65 is used to push out the debris blocked in the filter holes. A gear 66 is provided at one end of the rotating shaft 64. A groove 61 is provided on the inner wall of the housing 1. A rack 67 is fixed inside the groove 61. The gear 66 is meshed with the rack 67. The length of the nail roller 65 is equal to the width of the filter plate 4. Scrapers 56 are distributed on both sides of the nail roller 65. The nail roller 65 cleans the fine debris blocked in the filter holes.

[0036] An opening 10 is provided on the surface of the shell 1, and a push-opening structure 9 is provided on one side. The push-opening structure 9 includes a push plate 91 provided on one side of the scraper 56, and one end of the push plate 91 is inclined. The push-opening structure 9 also includes a slide groove 96 provided on the surface of the shell 1, and a slider 94 is slidably connected inside the slide groove 96. A spring 95 is provided at one end of the slider 94, and the end of the spring 95 away from the slider 94 is connected to the slide groove 96. A baffle 93 for blocking the opening 10 is provided on one side of the slider 94. The size of the baffle 93 is larger than the size of the opening 10, and the bottom end of the baffle 93 is inclined. A driven plate 92 is provided on the side of the baffle 93 close to the scraper 56, and the end of the driven plate 92 close to the push plate 91 is inclined. The inclined surface of the push plate 91 matches the inclined surface of the driven plate 92, which is convenient for opening and closing the baffle 93 and uniformly collecting impurities.

[0037] A discharge pipe 7 is connected to one side of the shell 1, and a dredging structure 8 for preventing blockage is rotatably connected inside the discharge pipe 7. A motor 2 is arranged at the bottom end of the shell 1, and the output end of the motor 2 passes through a rod groove opened on the bottom surface of the shell 1. The dredging structure 8 includes a positioning plate 83 arranged on the inner wall of the shell 1, and rotating rods 84 are rotatably connected on both sides of the positioning plate 83. A bevel gear 82 is arranged at one end of the rotating rod 84. The dredging structure 8 also includes a bevel gear 81 arranged on the surface of the output end of the motor 2, and the bevel gear 81 is meshed with the bevel gear 82. A spiral member 85 is arranged on the surface of the rotating rod 84, and a brush 86 and a scraper block 87 are arranged on the outer ring of the spiral member 85. There are multiple groups of brushes 86 and scrapers 87 at equal intervals, and the multiple groups of brushes 86 and scrapers 87 are staggered. The spiral member 85 drives the brushes 86 and scrapers 87 staggered on the side to clean the dirt attached to the inner wall of the discharge pipe 7, which can also effectively prevent blockage.

[0038] Specifically, first, the waste water is located at the upper end of the shell 1, and the waste water pipe corresponds to the center of the filter plate 4, and the waste water pipe is opened through the valve body, so that the external waste water is transported to the filter plate 4 at the top of the shell 1 through the pipe, and then the filter plate 4 blocks the impurities in the waste water, such as leaves, plastic fragments and other debris, and drives the micro motor 52 fixedly installed on one set of fixed plates 51, the micro motor 52 drives the belt 53 to synchronously drive the two sets of screw rods 54 to rotate, the two sets of screw rods 54 are rotatably connected with the other three sets of fixed plates 51, and the two sets of screw rods 54 respectively drive the moving blocks 55 to move in threaded connection, and the moving blocks 55 drive the scrapers 56 fixed between them to clean the debris blocked and accumulated on the surface of the filter plate 4 and scrape them to both sides, and there are two sets of scrapers 56 symmetrically distributed. Since the two sides of the shell 1 correspond to the openings An opening 10 is provided, and a collection box is provided on the outer side of the shell 1 corresponding to the opening 10, and the debris cleaned and discharged by the scraper 56 is uniformly collected. This collection box is a technical point of the comparative patent and is not described in detail here. At the same time, the two groups of screw rods 54 are respectively threadedly connected with the two groups of movable blocks 62, and the movable blocks 62 drive the connecting plate 63 to move. Since the connecting plate 63 is rotatably connected with the rotating shaft 64, the rotating shaft 64 drives the gear 66 at one end to mesh and move with the rack 67. The rack 67 is arranged in a groove 61 provided on the inner wall of the shell 1, and the rotating shaft 64 drives the nail roller 65 to rotate. Since the nail head of the nail roller 65 is equal to the filter hole spacing of the filter plate 4, the nail head on the surface of the nail roller 65 can push the debris blocked in the filter hole downward, and the nail roller 65 cleans the fine debris blocked in the filter hole to ensure the continuous and stable filtering effect;

[0039] As the scraper 56 pushes the impurities filtered on the surface of the filter plate 4 toward the openings 10 at both ends, the scraper 56 drives the push plate 91 on one side to move toward the opening 10, so that the inclined surface of the push plate 91 contacts the inclined surface of the driven plate 92 on one side of the baffle 93, so that the driven plate 92 continues to move with the push plate 91. Since the inclined surface of the push plate 91 fits the inclined surface of the driven plate 92, the push plate 91 moves to push the driven plate 92 upward, so that the driven plate 92 drives the sliders 94 on both sides of the baffle 93 to slide upward in the slide groove 96, and the sliders 94 bring The dynamic spring 95 is stretched and stored, so that the baffle 93 moves upward and gradually exposes the opening 10 without being blocked. The inclined surface at the bottom of the baffle 93 plays a guiding role, so that the scraper 56 scrapes the impurities on the surface of the filter plate 4 and pushes them out through the gap between the baffle 93 and the opening 10 and falls into the interior of the collection box. When the scraper 56 moves toward the middle of the filter plate 4, the push plate 91 on one side of the scraper 56 does not push the driven plate 92, so that the baffle 93 returns to the opening 10 to cover it through the rebound force of the spring 95, which makes it convenient to open and close the baffle 93 as needed to collect impurities uniformly.

[0040] After the impurities are filtered through the filter plate 4, the denitrification and dephosphorization agents are poured into the interior of the housing 1, and the mixing rod 3 at the output end is driven to rotate by starting the motor 2, so that the mixing rod 3 mixes the agent with the sewage. After mixing for a certain period of time, the discharge can be output by opening the valve body of the discharge pipe 7. As the motor 2 rotates, the bevel gear 81 is driven to rotate, and the bevel gear 81 is meshed with the bevel gear 82. The bevel gear 82 drives the rotating rod 84 on one side to rotate. The rotating rod 84 is connected to the inner wall of the housing 1 through a rotatably connected positioning plate 83. The rotating rod 84 drives the spiral member 85 to rotate inside the discharge pipe 7. The spiral member 85 arranged inside the discharge pipe 7 not only helps to discharge the material smoothly, but also drives the brush 86 and the scraper 87 arranged on the side in a staggered manner to clean the dirt attached to the inner wall of the discharge pipe 7, and can also effectively prevent blockage.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device based on denitrification and dephosphorization technology, comprising a housing (1) and a filter plate (4) arranged inside the housing (1), characterized in that: The top end of the housing (1) is provided with a cleaning structure (5) for handling debris on the surface of the filter plate (4); The cleaning structure (5) comprises a micro motor (52) arranged at the top end of the housing (1), a screw rod (54) arranged at the output end of the micro motor (52), a moving block (55) being threadedly connected to the surface of the screw rod (54), and a scraper (56) being arranged on one side of the moving block (55); A blocking prevention structure (6) for clearing the filter holes of the filter plate (4) is arranged on one side of the screw rod (54), the blocking prevention structure (6) comprising a movable block (62) threadedly connected to the surface of the screw rod (54), a connecting plate (63) being arranged at the bottom end of the movable block (62), a rotating shaft (64) being rotatably connected to both sides of the connecting plate (63), a nail roller (65) being arranged on one side of the rotating shaft (64), a plurality of nail heads being evenly spaced on the surface of the nail roller (65), the spacing between adjacent nail heads being equal to the spacing between the filter holes, and the nail roller (65) being used to push out the debris blocking the filter holes; A discharge pipe (7) is connected to one side of the housing (1), and a dredging structure (8) for preventing blockage is rotatably connected inside the discharge pipe (7). The dredging structure (8) comprises a bevel gear set arranged at the output end of the motor (2) and driven vertically, and a rotating rod (84) is arranged on one side of the bevel gear set. A spiral member (85) for stabilizing the discharge is arranged on the surface of the rotating rod (84), and a brush (86) and a scraper (87) for cleaning and scraping dirt on the inner wall of the discharge pipe (7) are arranged on the outer ring of the spiral member (85).

2. A wastewater treatment device based on denitrification and phosphorus removal technology according to claim 1, characterized in that: A motor (2) is arranged at the bottom end of the housing (1); the output end of the motor (2) passes through a rod groove provided on the bottom surface of the housing (1); and a mixing rod (3) is arranged at the output end of the motor (2).

3. A wastewater treatment device based on denitrification and phosphorus removal technology according to claim 1, characterized in that: The screw rods (54) are symmetrically distributed in two groups with respect to the housing (1), one group of the screw rods (54) is connected to the output end of the micro motor (52), and the two groups of the screw rods (54) are synchronously driven via a belt (53) sleeved on the surface.

4. A wastewater treatment device based on denitrification and phosphorus removal technology according to claim 3, characterized in that: A fixing plate (51) is arranged at the top end of the housing (1), and four groups of fixing plates (51) are arranged, one group of the fixing plates (51) is used to fix the micro motor (52), and the other three groups of the fixing plates (51) are all rotatably connected to the screw rod (54).

5. A wastewater treatment device based on denitrification and phosphorus removal technology according to claim 1, characterized in that: A gear (66) is provided at one end of the rotating shaft (64), a groove (61) is provided on the inner wall of the housing (1), a rack (67) is fixed inside the groove (61), and the gear (66) is meshed with the rack (67).

6. A wastewater treatment device based on denitrification and phosphorus removal technology according to claim 1, characterized in that: The length of the spike roller (65) is equal to the width of the filter plate (4).

7. A wastewater treatment device based on denitrification and phosphorus removal technology according to claim 1, characterized in that: Scrapers (56) are distributed on both sides of the nail roller (65), and the two groups of scrapers (56) are used to push the debris on the surface of the filter screen out of the outer shell (1).

8. A wastewater treatment device based on denitrification and phosphorus removal technology according to claim 1, characterized in that: The dredging structure (8) comprises a positioning plate (83) arranged on the inner wall of the housing (1), the positioning plate (83) being rotatably connected to a rotating rod (84), one end of the rotating rod (84) being provided with a second bevel gear (82), and the dredging structure (8) further comprises a first bevel gear (81) arranged on the surface of the output end of the motor (2), the first bevel gear (81) being meshed with the second bevel gear (82).

9. A wastewater treatment device based on denitrification and phosphorus removal technology according to claim 8, characterized in that: The brushes (86) and scrapers (87) are arranged in multiple groups at equal intervals, and the multiple groups of brushes (86) and scrapers (87) are all staggered.

10. A wastewater treatment device based on denitrification and phosphorus removal technology according to claim 1, characterized in that: The surface of the housing (1) is provided with an opening (10), and a push-opening structure (9) is provided on one side of the housing (1). The push-opening structure (9) includes a push plate (91) provided on one side of the scraper (56), and one end of the push plate (91) is inclined. The push-opening structure (9) also includes a slide groove (96) provided on the surface of the housing (1), and a slider (94) is slidably connected inside the slide groove (96). A spring (95) is provided at one end of the slider (94), and the spring (95) is away from the slider. One end of the block (94) is connected to the slide groove (96), and a baffle (93) for blocking the opening (10) is arranged on one side of the slider (94). The size of the baffle (93) is larger than the size of the opening (10), and the bottom end of the baffle (93) is inclined. A driven plate (92) is arranged on the side of the baffle (93) close to the scraper (56), and one end of the driven plate (92) close to the push plate (91) is inclined, and the inclined surface of the push plate (91) is matched with the inclined surface of the driven plate (92).

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