Energy-saving and environmentally friendly sewage treatment equipment with improved dissolution efficiency

Abstract

An energy-saving and environmentally friendly sewage treatment equipment for improving dissolution efficiency comprises a sedimentation tank, a first rotating rod, a protective box, a second rotating rod, a stirring box, stirring blades and a flocculant inlet pipe; a filter screen, a first baffle and a second baffle are arranged on the inner wall of the sedimentation tank from top to bottom, and a water outlet pipe is arranged on the side wall of the sedimentation tank; a residue removal component is arranged in the sedimentation tank; a plurality of fan blades are arranged on the first rotating rod, and the first rotating rod is connected to the second rotating rod in a transmission manner; a clean water inlet pipe is arranged on the stirring box, a heating mechanism and a water pump are arranged in the stirring box, and a flocculant adding component is arranged on the stirring box; the stirring blades are arranged on the second rotating rod; the water outlet end of the flocculant inlet pipe is located directly below the second water pipe; the equipment is also provided with a control system. In the present invention, filtering the residue reduces the difficulty of sewage treatment; stirring improves the dissolution efficiency of the flocculant, and the confluence enables the flocculant solution to be evenly dispersed in the sewage, which not only ensures the effect of sewage treatment, but also saves flocculants.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment equipment technology, and in particular to an energy-saving and environmentally friendly wastewater treatment equipment that improves dissolution efficiency. Background Technology

[0002] Wastewater treatment refers to the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, healthcare, and catering, and is increasingly becoming a part of everyday life for ordinary people. Wastewater treatment typically requires the addition of flocculants. The dissolution of flocculants can precipitate various tiny impurities in the wastewater. However, flocculants are not easily dissolved and dissolve very slowly, which seriously affects the quality and efficiency of wastewater treatment.

[0003] A wastewater treatment device for improving dissolution efficiency, proposed in Chinese Invention Announcement No. CN111453878A, employs a structure that combines a clean water transport channel and a flocculant transport channel. This allows the clean water to mix with the flocculant during transport, enabling the flocculant to dissolve in the clean water. However, simply mixing the flocculant with clean water during transport does not result in a very poor dissolution effect for the flocculant, ultimately affecting the wastewater treatment effect and efficiency. Summary of the Invention

[0004] (I) Purpose of the Invention

[0005] To address the technical problems existing in the background art, this invention proposes an energy-saving and environmentally friendly wastewater treatment device that improves dissolution efficiency, reduces the difficulty of wastewater treatment by filtering residues, improves the dissolution efficiency of flocculants by stirring, ensuring the effect of wastewater treatment while saving flocculants, and ensures that the flocculant solution can be evenly dispersed in the wastewater, further improving the treatment effect.

[0006] (II) Technical Solution

[0007] This invention proposes an energy-saving and environmentally friendly wastewater treatment device with improved dissolution efficiency, comprising a sedimentation tank, a residue removal component, a first rotating rod, a protective box, a second rotating rod, a stirring box, stirring blades, and a flocculant inlet pipe; the residue removal component includes a scraper, a screw, and a first power unit;

[0008] The sedimentation tank has a square columnar structure, with both the top and bottom sealed. Multiple vertical support columns are installed at the bottom, and a vertical inlet pipe is installed at the top. Multiple horizontal branch pipes are installed side-by-side on the inlet pipe. The inner wall of the sedimentation tank, from top to bottom, is equipped with a horizontal filter screen, a first baffle, and a second baffle. The sedimentation tank forms a first wastewater storage area between the filter screen and the first baffle, a second wastewater storage area between the first and second baffles, and a wastewater dissolution and sedimentation area below the second baffle. A vertical first water pipe is installed on the first baffle, with both ends connected to the first and second wastewater storage areas respectively. The pipe is equipped with a first solenoid valve, and a vertical second water pipe is installed on the second partition. The upper and lower ends of the second water pipe are connected to the second sewage storage area and the sewage dissolution and sedimentation area, respectively. The second water pipe is equipped with a second solenoid valve. A water level detection mechanism is installed in the first sewage storage area. A vertical sedimentation outlet pipe is installed on the outside of the bottom of the sedimentation tank. The sedimentation outlet pipe is connected to the sewage dissolution and sedimentation area. A third solenoid valve is installed on the sedimentation outlet pipe. A horizontal water outlet pipe is installed on the side wall of the sedimentation tank. The water outlet pipe is connected to the sewage dissolution and sedimentation area. A fourth solenoid valve is installed on the water outlet pipe. A sedimentation collection component is installed on the outside of the bottom of the sedimentation tank to collect and store the sediment falling from the discharge end of the sedimentation outlet pipe.

[0009] The scraper is vertically mounted on the inner wall of the sedimentation tank, positioned above the filter screen, with its bottom in contact with the filter screen. The scraper slides against the front and rear inner walls of the sedimentation tank, with the sliding direction being left and right. A horizontal threaded hole is formed on the scraper. A screw mates with the threaded hole, with one end of the screw rotatably connected to the right inner wall of the sedimentation tank, and the other end of the screw extending through the threaded hole into the outer left side of the sedimentation tank. A first power unit is located on the outer left wall of the sedimentation tank and is connected to the screw drive. Sludge discharge troughs are formed at both ends of the sedimentation tank for residual sludge in the wastewater to pass through. A set of sludge collection components is installed on the outer walls of both ends of the sedimentation tank.

[0010] One end of the first rotating rod is rotatably connected to the inner wall of the left side of the sedimentation tank. The first rotating rod is located between the first water pipe and the second partition. Multiple sets of fan blades are installed on the first rotating rod, with the blades positioned below the outlet end of the first water pipe. The other end of the first rotating rod passes through the first through-hole at the right end of the sedimentation tank and extends into the protective box. The protective box is located on the outer wall of the right side of the sedimentation tank. The second rotating rod is vertically and rotatably mounted inside the top of the protective box. The bottom end of the second rotating rod passes through the bottom of the protective box and extends into the stirring box. A transmission assembly is installed inside the protective box, and the first rotating rod is connected to the second rotating rod via this transmission assembly. The stirring box is located within the... On the outer right wall of the sedimentation tank, the stirring box is located below the protective box. The top of the stirring box has a second through hole for the second rotating rod to pass through. The stirring box has a vertical clear water inlet pipe with a fifth solenoid valve. The stirring box contains a heating mechanism and a water pump. The stirring box also has a flocculant adding component for adding pre-measured flocculant. The stirring blades are horizontally mounted on the second rotating rod and are located inside the stirring box. Multiple sets of stirring blades are arranged side by side. The inlet end of the flocculant inlet pipe is connected to the water pump, and the outlet end of the flocculant inlet pipe extends into the sedimentation tank and is located directly below the outlet end of the second water pipe.

[0011] This equipment is also equipped with a control system, which is connected to the water level detection mechanism for signal transmission. The control system is also connected to the first power unit, the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the fifth solenoid valve, the heating mechanism, and the flocculant addition component. The control system is equipped with a timing module.

[0012] Preferably, a wastewater treatment method is proposed, comprising the following steps: S1, wastewater from multiple sources is introduced into the inlet pipe through multiple sets of branch pipes, and then enters the sedimentation tank through the inlet pipe; S2, the wastewater falls onto the filter screen, and the residue in the wastewater is blocked by the filter screen. The residue is pushed out of the sludge discharge trough by a scraper that moves left and right and falls into the residue collection component. After being filtered by the filter screen, the wastewater falls into the first wastewater storage area; S3, after the water level detection mechanism detects that the water level in the first wastewater storage area has reached the set height, it transmits the signal to the control system. The control system controls the fifth solenoid valve to open for a set time to introduce a certain amount of clean water into the mixing box. At the same time, the control system controls the flocculant addition component to start and add a certain amount of flocculant to the mixing box; S4, the clean water and After the flocculant is added, the control system starts the heating mechanism, and at the same time, the first solenoid valve opens for a set time to allow sewage to flow into the second sewage storage area. During the sewage's descent, the fan blades drive the first rotating rod to rotate, ultimately causing the stirring blades to stir the liquid in the stirring box. S5: After the first solenoid valve closes, the second solenoid valve opens, and the water pump starts working. The pump's working time is equal to the opening time of the second solenoid valve, and the dissolved flocculant solution and sewage flow together into the sewage dissolution and sedimentation area. S6: After the sewage sedimentation time is over, the fourth solenoid valve opens for a set time to discharge the purified water. S7: The third solenoid valve opens and closes periodically, allowing the sediment in the sewage to flow from the sedimentation outlet pipe into the sedimentation collection assembly.

[0013] Preferably, the residue collection assembly includes a first slag receiving box, a first support plate, and a spring; the first slag receiving box is disposed on the side wall of the sedimentation tank, the inner cavity of the first slag receiving box is connected to the slag discharge chute, a first slag discharge plate is disposed on the first slag receiving box, and a first handle is provided on the first slag discharge plate; the first support plate is disposed on the inner wall of the first slag receiving box facing the sedimentation tank; the spring is disposed on the end face of the first support plate facing the sedimentation tank, a second support plate is disposed at the end of the spring, and a sealing gasket for closing the slag discharge chute is provided on the end face of the second support plate facing the sedimentation tank; two sets of residue collection assemblies are provided, and the two sets of residue collection assemblies correspond one-to-one with the two sets of slag discharge chute.

[0014] Preferably, the transmission assembly includes a first bevel gear and a second bevel gear; the first bevel gear is keyed to a first rotating rod, the second bevel gear is keyed to a second rotating rod, and the second bevel gear meshes with the first bevel gear.

[0015] Preferably, the flocculant addition component includes a flocculant storage box, a second power unit, a third rotating rod, and a pusher plate; the flocculant storage box is mounted on the mixing box and is cylindrical; the second power unit is mounted on the flocculant storage box and is connected to the third rotating rod, the bottom of which is vertically inserted into the flocculant storage box; the pusher plate is vertically mounted on the outer wall of the third rotating rod and fits against the inner circumferential wall of the flocculant storage box; multiple sets of pusher plates are provided, evenly distributed around the axis of the third rotating rod; a photoelectric sensor for detecting the position of the pusher plate is provided on the top of the flocculant storage box; a discharge hole is opened on the top of the mixing box, located between two sets of pusher plates; multiple feed plates are opened on the top of the flocculant storage box, located between two adjacent sets of pusher plates; the feed plates are transparent and have a third handle; the control system is connected to the photoelectric sensor for signal transmission and is connected to the second power unit for control.

[0016] Preferably, the sedimentation collection assembly includes a second slag receiving box and a second slag discharge plate; the second slag receiving box is located on the outer side of the bottom of the sedimentation tank, and the sedimentation outlet pipe extends into the second slag receiving box; the second slag discharge plate is rotatably located at the bottom of the second slag receiving box, and a second handle is provided on the second slag discharge plate.

[0017] Preferably, a guide platform is provided at the bottom of the sedimentation tank. The upper surface of the guide platform is an inclined surface, which slopes downward from the left and right sides of the guide platform toward the middle of the guide platform. The sedimentation outlet pipe passes through the guide platform and is located in the middle of the guide platform.

[0018] Preferably, the heating temperature of the heating mechanism is 30-40℃.

[0019] Preferably, the mixing box, the second rotating rod, the mixing blade, and the flocculant inlet pipe are all made of carbon steel with a resin coating.

[0020] The above-described technical solution of the present invention has the following beneficial technical effects:

[0021] 1. The filter screen first filters out the residue in the sewage and then removes the residue through the residue removal component, which helps to reduce the difficulty of subsequent sewage treatment. The residue falls into the residue collection component for unified treatment.

[0022] 2. The gravitational potential energy of the falling sewage in the first sewage storage area drives the fan blades to rotate. The fan blades drive the first rotating rod to rotate, which in turn drives the second rotating rod to rotate through the transmission assembly. This stirs and mixes the liquid mixture of clean water and flocculant through the stirring blades, which can improve the dissolution efficiency of flocculant and save energy. At the same time, the heating mechanism further improves the dissolution efficiency of flocculant, ensuring the quality and efficiency of sewage treatment. Moreover, both clean water and flocculant are added in quantitative amounts, which can ensure the effect of sewage treatment and minimize the amount of flocculant used.

[0023] 3. The flocculant solution is continuously combined with the sewage that falls into the sewage dissolution and sedimentation zone through the flocculant inlet pipe, so that the flocculant solution can be evenly dispersed in the sewage, which further improves the treatment effect of the flocculant on sewage.

[0024] 4. The dissolved sediments from the wastewater fall directly from the sediment outlet pipe into the sediment collection assembly, facilitating unified treatment of the sediments. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the energy-saving and environmentally friendly wastewater treatment equipment with improved dissolution efficiency proposed in this invention.

[0026] Figure 2 This is a front sectional view of the energy-saving and environmentally friendly wastewater treatment equipment with improved dissolution efficiency proposed in this invention.

[0027] Figure 3 This is an enlarged schematic diagram of point A in the energy-saving and environmentally friendly wastewater treatment equipment with improved dissolution efficiency proposed in this invention.

[0028] Figure 4 This is an enlarged schematic diagram of section B of the energy-saving and environmentally friendly wastewater treatment equipment with improved dissolution efficiency proposed in this invention.

[0029] Figure 5 This is an enlarged schematic diagram of point C in the energy-saving and environmentally friendly wastewater treatment equipment for improving dissolution efficiency proposed in this invention.

[0030] Reference numerals: 1. Sedimentation tank; 2. Support column; 3. Inlet pipe; 4. Branch pipe; 5. Filter screen; 6. First baffle; 7. Second baffle; 8. Scraper; 9. Threaded hole; 10. Screw; 11. First power unit; 12. Slag discharge trough; 13. First slag receiving box; 14. First slag discharge plate; 15. First handle; 16. First support plate; 17. Spring; 18. Second support plate; 19. Sealing gasket; 20. Water level detection mechanism; 21. First water pipe; 22. First solenoid valve; 23. First rotating rod; 24. Fan blade; 25. First through hole; 26. Protective box; 27. First bevel gear; 28. Second bevel gear; 29. ​​Second... 30. Rotating rod; 31. Mixing box; 32. Second through hole; 33. Mixing blade; 34. Clean water inlet pipe; 35. Fifth solenoid valve; 36. Flocculant storage box; 37. Second power unit; 38. Third rotating rod; 39. Push plate; 40. Photoelectric sensor; 41. Discharge hole; 42. Feed plate; 43. Third handle; 44. Second water pipe; 45. Second solenoid valve; 46. Heating mechanism; 47. Water pump; 48. Flocculant inlet pipe; 49. Guide platform; 50. Sediment outlet pipe; 51. Third solenoid valve; 52. Second slag receiving box; 53. Second slag discharge plate; 54. Second handle; 55. Water outlet pipe; 56. Fourth solenoid valve. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0032] like Figure 1-5 As shown, the present invention proposes an energy-saving and environmentally friendly wastewater treatment device with improved dissolution efficiency, including a sedimentation tank 1, a residue removal component, a first rotating rod 23, a protective box 26, a second rotating rod 29, a stirring box 30, a stirring blade 32, and a flocculant inlet pipe 47; the residue removal component includes a scraper 8, a screw 10, and a first power device 11;

[0033] The sedimentation tank 1 has a square columnar structure, with both the top and bottom sealed. Multiple sets of vertical support columns 2 are installed at the bottom of the sedimentation tank 1, and a vertical inlet pipe 3 is installed at the top. Multiple sets of horizontal branch pipes 4 are installed side-by-side on the inlet pipe 3. The inner wall of the sedimentation tank 1 is sequentially fitted with a horizontal filter screen 5, a first baffle 6, and a second baffle 7 from top to bottom. The sedimentation tank 1 forms a first wastewater storage area between the filter screen 5 and the first baffle 6, a second wastewater storage area between the first baffle 6 and the second baffle 7, and a wastewater dissolution and sedimentation area below the second baffle 7. A vertical first water pipe 21 is installed on the first baffle 6, with both ends of the first water pipe 21 connected to the first wastewater storage area and the second wastewater storage area, respectively. The first water pipe 21 is equipped with a first... A solenoid valve 22 is provided. A vertical second water pipe 43 is provided on the second partition 7. The upper and lower ends of the second water pipe 43 are connected to the second sewage storage area and the sewage dissolution and sedimentation area, respectively. A second solenoid valve 44 is provided on the second water pipe 43. A water level detection mechanism 20 is provided in the first sewage storage area. A vertical sedimentation outlet pipe 49 is provided on the outer side of the bottom of the sedimentation tank 1. The sedimentation outlet pipe 49 is connected to the sewage dissolution and sedimentation area. A third solenoid valve 50 is provided on the sedimentation outlet pipe 49. A horizontal water outlet pipe 54 is provided on the side wall of the sedimentation tank 1. The water outlet pipe 54 is connected to the sewage dissolution and sedimentation area. A fourth solenoid valve 55 is provided on the water outlet pipe 54. A sedimentation collection component is provided on the outer side of the bottom of the sedimentation tank 1 to collect and store the sediment falling from the discharge end of the sedimentation outlet pipe 49.

[0034] The scraper 8 is vertically installed on the inner wall of the sedimentation tank 1, above the filter screen 5, with the bottom of the scraper 8 in contact with the filter screen 5. The scraper 8 is slidably connected to the front and rear inner walls of the sedimentation tank 1, with the sliding direction being left and right. A horizontal threaded hole 9 is opened on the scraper 8. The screw 10 is engaged with the threaded hole 9, with one end of the screw 10 rotatably connected to the inner wall of the right side of the sedimentation tank 1, and the other end of the screw 10 extending through the threaded hole 9 into the outer side of the left end of the sedimentation tank 1. The first power device 11 is installed on the outer wall of the left end of the sedimentation tank 1, and the first power device 11 is connected to the screw 10 for transmission. Sludge discharge troughs 12 are opened at both the left and right ends of the sedimentation tank 1 for the residue in the sewage to pass through. A set of residue collection components is installed on the outer walls of both the left and right ends of the sedimentation tank 1.

[0035] One end of the first rotating rod 23 is rotatably connected to the inner left wall of the sedimentation tank 1. The first rotating rod 23 is located between the first water pipe 21 and the second partition 7. Multiple sets of fan blades 24 are provided on the first rotating rod 23, and the fan blades are located below the outlet end of the first water pipe 21. The other end of the first rotating rod 23 passes through the first through hole 25 opened at the right end of the sedimentation tank 1 and extends into the protective box 26. The protective box 26 is set on the outer right wall of the sedimentation tank 1. The second rotating rod 29 is vertically and rotatably set on the inner top of the protective box 26. The bottom end of the second rotating rod 29 passes through the bottom of the protective box 26 and extends into the stirring box 30. The protective box 26 is provided with a transmission assembly, and the first rotating rod 23 is connected to the second rotating rod 29 through the transmission assembly. The stirring box 30 is set in the sedimentation tank 1. On the outer right side of pool 1, a stirring box 30 is located below a protective box 26. The top of the stirring box 30 is provided with a second through hole 31 for the second rotating rod 29 to pass through. A vertical clear water inlet pipe 33 is provided on the stirring box 30, and a fifth solenoid valve 34 is provided on the clear water inlet pipe 33. A heating mechanism 45 and a water pump 46 are provided inside the stirring box 30. A flocculant adding component is provided on the stirring box 30 for adding the measured flocculant inside. The stirring blades 32 are horizontally arranged on the second rotating rod 29 and are located inside the stirring box 30. Multiple sets of stirring blades 32 are arranged side by side. The inlet end of the flocculant inlet pipe 47 is connected to the water pump 46, and the outlet end of the flocculant inlet pipe 47 extends into the sedimentation tank 1 and is located directly below the outlet end of the second water pipe 43.

[0036] This equipment is also equipped with a control system, which is connected to the water level detection mechanism 20 for signal transmission. The control system is also connected to the first power unit 11, the first solenoid valve 22, the second solenoid valve 44, the third solenoid valve 50, the fourth solenoid valve 55, the fifth solenoid valve 34, the heating mechanism 45, and the flocculant addition component. The control system is equipped with a timing module.

[0037] In this invention, wastewater from multiple sources flows into the inlet pipe 3 through multiple sets of branch pipes 4, and then into the sedimentation tank 1. The wastewater falls onto the filter screen 5, where residues are blocked. The residues are pushed out of the sludge discharge trough 12 by the left-right moving scraper 8 and fall into the residue collection assembly. After being filtered by the filter screen 5, the wastewater falls into the first wastewater storage area. The water level detection mechanism 20 detects that the water level in the first wastewater storage area has reached a set height and transmits the signal to the control system. The control system controls the fifth solenoid valve 34 to open for a set time to introduce a fixed amount of clean water into the mixing box 30. At the same time, the control system controls the flocculant addition assembly to start adding a fixed amount of flocculant into the mixing box 30. After the clean water and flocculant have been added, the control system... The heating mechanism 45 is activated, and the first solenoid valve 22 opens for a set time to allow sewage to flow into the second sewage storage area. During the sewage's descent, the fan blades drive the first rotating rod 23 to rotate, ultimately causing the stirring blades 32 to stir the liquid in the stirring box 30. After the first solenoid valve 22 closes, the second solenoid valve 44 opens, and the water pump 46 starts working. The working time of the water pump 46 is equal to the opening time of the second solenoid valve 44. The dissolved flocculant solution and sewage flow together and fall into the sewage dissolution and sedimentation area. After the sewage sedimentation time is over, the fourth solenoid valve 55 opens for a set time to discharge the purified water. The third solenoid valve 50 opens and closes periodically to allow the sediment in the sewage to flow from the sedimentation outlet pipe 49 into the sedimentation collection assembly. In this invention, the filter screen 5 first filters out the residue in the sewage, and then removes the residue through the residue removal component, which helps reduce the difficulty of subsequent sewage treatment. The residue falls into the residue collection component for unified treatment. The gravitational potential energy of the sewage falling in the first sewage storage area drives the fan blade 24 to rotate, which in turn drives the first rotating rod 23 to rotate. Through the transmission component, the second rotating rod 29 is driven to rotate, thereby stirring and mixing the mixture of water and flocculant through the stirring blade 32. This improves the dissolution efficiency of the flocculant and saves energy. At the same time, the heating mechanism 45... Heating further improves the dissolution efficiency of the flocculant, ensuring the quality and efficiency of wastewater treatment. Both clean water and flocculant are added in measured quantities, guaranteeing the wastewater treatment effect while minimizing the amount of flocculant used. The flocculant solution continuously merges with the wastewater falling into the wastewater dissolution and sedimentation zone through the flocculant inlet pipe 47, allowing the flocculant solution to be evenly dispersed in the wastewater, further improving the flocculant's treatment effect. The dissolved sediment falls directly from the sedimentation outlet pipe 49 into the sedimentation collection assembly, facilitating unified treatment of the sediment.

[0038] In one optional embodiment, a wastewater treatment method is proposed, comprising the following steps:

[0039] S1. Wastewater from multiple sources is introduced into the inlet pipe 3 through multiple sets of branch pipes 4, and then enters the sedimentation tank 1 through the inlet pipe 3;

[0040] S2. Wastewater falls onto filter screen 5, and residues in the wastewater are blocked by filter screen 5. The residues are pushed out of the sludge discharge trough 12 by scraper 8 which moves left and right and fall into the residue collection component. After being filtered by filter screen 5, the wastewater falls into the first wastewater storage area. The scraper 8 moves back and forth continuously, which can push the residues on filter screen 5 out of the sludge discharge trough 12 in time, preventing the residues from accumulating on filter screen 5 and causing the filter screen 5 to have poor water flow.

[0041] S3. After the water level detection mechanism 20 detects that the water level in the first sewage storage area has reached the set height, it transmits the signal to the control system. The control system controls the fifth solenoid valve 34 to open for a set time to introduce a certain amount of clean water into the mixing box 30. At the same time, the control system controls the flocculant adding component to start and add a certain amount of flocculant into the mixing box 30. The clean water and flocculant are added into the mixing box 30 together to facilitate the subsequent stirring and dissolution of the flocculant.

[0042] S4. After the clean water and flocculant are added, the control system controls the heating mechanism 45 to start. At the same time, the first solenoid valve 22 opens for a set time to let the sewage into the second sewage storage area. During the sewage fall, the fan blade drives the first rotating rod 23 to rotate, which in turn makes the stirring blade 32 stir the liquid in the stirring box 30. Through stirring and heating, the flocculant can be dissolved quickly, and the stirring and mixing of the flocculant does not require additional energy, thus saving energy.

[0043] S5. After the first solenoid valve 22 is closed, the second solenoid valve 44 is opened, and at the same time, the water pump 46 starts to work. The working time of the water pump 46 is equal to the opening time of the second solenoid valve 44. The dissolved flocculant solution and sewage flow into the sewage dissolution and sedimentation zone, so that the flocculant solution can be evenly dispersed in the sewage, which is conducive to the flocculant playing its best role.

[0044] S6. After the sewage sedimentation time is over, the fourth solenoid valve 55 opens for a set time to discharge the purified water; the outlet pipe 54 can be connected to the water pump to facilitate faster discharge of purified water.

[0045] S7, the third solenoid valve 50 opens and closes periodically, allowing the sediment in the wastewater to pass from the sediment outlet pipe 49 into the sediment collection assembly; the treatment of sediment in wastewater is simple and convenient.

[0046] In an optional embodiment, the residue collection assembly includes a first slag receiving box 13, a first support plate 16, and a spring 17. The first slag receiving box 13 is disposed on the side wall of the sedimentation tank 1, and its inner cavity communicates with the slag discharge trough 12. A first slag discharge plate 14 is disposed on the first slag receiving box 13, and a first handle 15 is provided on the first slag discharge plate 14. The first support plate 16 is disposed on the inner wall of the first slag receiving box 13 facing the sedimentation tank 1. The spring 17 is disposed on the end face of the first support plate 16 facing the sedimentation tank 1, and springs outwards. A second support plate 18 is provided at the end of the spring 17. The end face of the second support plate 18 facing the sedimentation tank 1 is provided with a sealing gasket 19 to close the slag discharge trough 12. Two sets of residue collection components are provided, and the two sets of residue collection components correspond one-to-one with the two sets of slag discharge troughs 12. The scraper 8 pushes the residue compression spring 17 to open the slag discharge trough 12, and the residue falls directly into the first slag receiving box 13. After the scraper 8 leaves, the spring 17 pushes the second support plate 18 again to close the slag discharge trough 12 to prevent sewage from flowing into the first slag receiving box 13.

[0047] In an optional embodiment, the transmission assembly includes a first bevel gear 27 and a second bevel gear 28; the first bevel gear 27 is keyed to the first rotating rod 23, the second bevel gear 28 is keyed to the second rotating rod 29, and the second bevel gear 28 meshes with the first bevel gear 27; the second rotating rod 29 can be driven to rotate by the meshing of the second bevel gear 28 with the first bevel gear 27.

[0048] In an optional embodiment, the flocculant addition assembly includes a flocculant storage box 35, a second power unit 36, a third rotating rod 37, and a pusher plate 38. The flocculant storage box 35 is mounted on the mixing box 30 and is cylindrical. The second power unit 36 ​​is mounted on the flocculant storage box 35 and is connected to the third rotating rod 37. The bottom of the third rotating rod 37 is vertically inserted into the flocculant storage box 35. The pusher plate 38 is vertically mounted on the outer wall of the third rotating rod 37 and is in contact with the inner peripheral wall of the flocculant storage box 35. Multiple sets of pusher plates 38 are evenly distributed around the axis of the third rotating rod 37. 5. A photoelectric sensor 39 is provided at the top to detect the position of the push plate 38; a material discharge hole 40 is opened at the top of the mixing box 30, and the material discharge hole 40 is located between two sets of push plates 38; multiple sets of feed plates 41 are opened at the top of the flocculant storage box 35, and the feed plates 41 are located between two sets of adjacent push plates 38. The feed plates 41 are transparent plates and are provided with a third handle 42; the control system is connected to the photoelectric sensor 39 for signal transmission, and the control system is connected to the second power device 36 for control; when the metered flocculant is placed between two sets of adjacent push plates 38, the second power device 36 drives the push plate 38 to rotate through the third rotating rod 37, which pushes the flocculant from the material discharge hole 40 into the mixing box 30 to mix with water.

[0049] In an optional embodiment, the sedimentation collection assembly includes a second slag receiving box 51 and a second slag discharge plate 52; the second slag receiving box 51 is located on the outer side of the bottom of the sedimentation tank 1, and the sedimentation outlet pipe 49 extends into the second slag receiving box 51; the second slag discharge plate 52 is rotatably located at the bottom of the second slag receiving box 51, and a second handle 53 is provided on the second slag discharge plate 52; the sediment falls directly into the second slag receiving box 51, which facilitates unified collection and treatment.

[0050] In an optional embodiment, a guide platform 48 is provided at the bottom of the sedimentation tank 1. The upper surface of the guide platform 48 is an inclined surface. The inclined surface slopes downward from the left and right sides of the guide platform 48 toward the middle of the guide platform 48. The sedimentation outlet pipe 49 passes through the guide platform 48 and is located in the middle of the guide platform 48. This facilitates the concentration of sediment at the middle of the bottom of the sedimentation tank 1 and improves the sedimentation outlet speed.

[0051] In an optional embodiment, the heating temperature of the heating mechanism 45 is 30-40°C. When dissolving the flocculant, pay attention to the water temperature. When the water temperature is low, the dissolution speed is slow. When the water temperature rises, the dissolution speed is faster. However, the dissolution temperature should not exceed 40°C. If it exceeds 40°C, the flocculant is prone to decomposition, resulting in the loss of effective components.

[0052] In an optional embodiment, the stirring box 30, the second rotating rod 29, the stirring blade 32, and the flocculant inlet pipe 47 are all made of carbon steel with a resin coating. Iron ions are catalysts that cause the chemical degradation of all polyacrylamide. Therefore, to prevent iron ions from entering, the equipment in contact with the flocculant solution is made of carbon steel with a resin coating, which can effectively prevent the degradation of the flocculant.

[0053] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of the invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the invention should be included within the protection scope of the invention. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. An energy-saving and environmentally friendly sewage treatment equipment that improves dissolution efficiency. It is characterized in that It comprises a sedimentation tank (1), a residue removal assembly, a first rotating rod (23), a protection box (26), a second rotating rod (29), a stirring box (30), a stirring blade (32) and a flocculant inlet pipe (47); the residue removal assembly comprises a scraper (8), a screw (10) and a first power device (11); The sedimentation tank (1) is a square columnar structure. The top and bottom of the sedimentation tank (1) are both closed. A plurality of groups of vertical support columns (2) are arranged at the bottom of the sedimentation tank (1). A vertical water inlet pipe (3) is arranged at the top of the sedimentation tank (1). A plurality of groups of horizontal branch pipes (4) are arranged side by side on the water inlet pipe (3). A horizontal filter screen (5), a first partition plate (6) and a second partition plate (7) are arranged on the inner wall of the sedimentation tank (1) from top to bottom. A first sewage storage area located between the filter screen (5) and the first partition plate (6), a second sewage storage area located between the first partition plate (6) and the second partition plate (7) and a sewage dissolution and sedimentation area located below the second partition plate (7) are formed in the sedimentation tank (1). A vertical first water pipe (21) is arranged on the first partition plate (6). Both ends of the first water pipe (21) are respectively connected to the first sewage storage area and the second sewage storage area. A first electromagnetic valve (22) is provided, a second vertical water pipe (43) is provided on the second partition plate (7), the upper and lower ends of the second water pipe (43) are respectively connected to the second sewage storage area and the sewage dissolution and sedimentation area, a second electromagnetic valve (44) is provided on the second water pipe (43), a water level detection mechanism (20) is provided in the first sewage storage area, a vertical sedimentation outlet pipe (49) is provided on the outside of the bottom of the sedimentation tank (1), the sedimentation outlet pipe (49) is connected to the sewage dissolution and sedimentation area, a third electromagnetic valve (50) is provided on the sedimentation outlet pipe (49), a horizontal water outlet pipe (54) is provided on the side wall of the sedimentation tank (1), the water outlet pipe (54) is connected to the sewage dissolution and sedimentation area, a fourth electromagnetic valve (55) is provided on the water outlet pipe (54), and a sedimentation collection component for collecting and storing sediment dropped from the discharge end of the sedimentation outlet pipe (49) is provided on the outside of the bottom of the sedimentation tank (1); The scraper (8) is vertically arranged on the inner wall of the sedimentation tank (1), the scraper (8) is located above the filter (5), the bottom of the scraper (8) is in contact with the filter (5), the scraper (8) is slidably connected to the front and rear inner walls of the sedimentation tank (1), and the sliding direction is the left and right direction. The scraper (8) is provided with a horizontal threaded hole (9); the screw (10) cooperates with the threaded hole (9), one end of the screw (10) is rotatably connected to the right inner wall of the sedimentation tank (1), and the other end of the screw (10) passes through the threaded hole (9) and extends into the left outer side of the sedimentation tank (1); the first power device (11) is arranged on the left outer wall of the sedimentation tank (1), and the first power device (11) is connected to the screw (10) in a driving manner; the left and right ends of the sedimentation tank (1) are provided with a slag discharge trough (12) for the residue in the sewage to pass through; and a group of residue collection components are arranged on the left and right outer walls of the sedimentation tank (1); One end of the first rotating rod (23) is rotatably connected to the left inner wall of the sedimentation tank (1). The first rotating rod (23) is located between the first water pipe (21) and the second partition plate (7). A plurality of groups of fan blades (24) are arranged on the first rotating rod (23). The fan blades are located below the water outlet end of the first water pipe (21). The other end of the first rotating rod (23) passes through a first through hole (25) opened at the right end of the sedimentation tank (1) and extends into a protective box (26). The protective box (26) is arranged on the right outer wall of the sedimentation tank (1). The second rotating rod (29) is vertically and rotatably arranged on the inner side of the top of the protective box (26). The bottom end of the second rotating rod (29) passes through the bottom of the protective box (26) and extends into a stirring box (30). A transmission assembly is arranged in the protective box (26). The first rotating rod (23) is transmission-connected to the second rotating rod (29) through the transmission assembly. The stirring box (30) is arranged in the sedimentation tank. (1) On the right outer wall, a stirring box (30) is located below the protective box (26), a second through hole (31) is provided on the top of the stirring box (30) for the second rotating rod (29) to pass through, a vertical clean water inlet pipe (33) is provided on the stirring box (30), a fifth solenoid valve (34) is provided on the clean water inlet pipe (33), a heating mechanism (45) and a water pump (46) are provided inside the stirring box (30), and a flocculant adding component for adding a good amount of flocculant into the stirring box (30); a stirring blade (32) is horizontally arranged on the second rotating rod (29), the stirring blade (32) is located in the stirring box (30), and a plurality of stirring blades (32) are arranged side by side; a water inlet end of the flocculant inlet pipe (47) is connected to the water pump (46), and a water outlet end of the flocculant inlet pipe (47) extends into the sedimentation tank (1) and is located directly below the water outlet end of the second water pipe (43); A control system is also provided, the control system is connected to the water level detection mechanism (20) for signal transmission, the control system is connected to the first power device (11), the first solenoid valve (22), the second solenoid valve (44), the third solenoid valve (50), the fourth solenoid valve (55), the fifth solenoid valve (34), the heating mechanism (45) and the flocculant adding component for control, and the control system is provided with a timing module.

2. The energy-saving and environmentally friendly sewage treatment equipment with improved dissolution efficiency according to claim 1, and the sewage treatment method thereof, It is characterized in that The following steps are involved: S1, sewage from multiple sources is introduced into the water inlet pipe (3) through multiple groups of branch pipes (4), and then enters the sedimentation tank (1) from the water inlet pipe (3); S2, the sewage falls onto the filter screen (5), the residue in the sewage is blocked by the filter screen (5), the residue is pushed out of the residue discharge trough (12) by the scraper (8) moving left and right and falls into the residue collection component, and the sewage is filtered by the filter screen (5) and falls into the first sewage storage area; S3, the water level detection mechanism (20) detects that the water level in the first sewage storage area reaches a set height and transmits a signal to the control system, the control system controls the fifth solenoid valve (34) to open for a set time to pass a fixed amount of clean water into the stirring box (30), and at the same time the control system controls the flocculant adding component to start adding a fixed amount of flocculant into the stirring box (30); S4, after the addition of clean water and flocculant is completed, the control system controls the heating mechanism (45) to start, and at the same time the first solenoid valve (22) is opened for a set time to pass the sewage into the second sewage storage area, and during the sewage falling process, the fan blade drives the first rotating rod (23) to rotate, and finally the stirring blade (32) stirs the liquid in the stirring box (30); S5, after the first solenoid valve (22) is closed, the second solenoid valve (44) is opened, and at the same time the water pump (46) starts to work, the working time of the water pump (46) is equal to the opening time of the second solenoid valve (44), and the dissolved flocculant solution and sewage merge and fall into the sewage dissolution and sedimentation area; S6, after the sewage sedimentation time is over, the fourth solenoid valve (55) opens for a set time to discharge the clean water; S7. The third solenoid valve (50) is opened and closed regularly to allow the sediment in the sewage to pass from the sediment outlet pipe (49) into the sediment collection assembly.

3. The energy-saving and environmentally friendly sewage treatment equipment with improved dissolution efficiency according to claim 1, It is characterized in that The residue collection assembly comprises a first slag receiving box (13), a first support plate (16) and a spring (17); the first slag receiving box (13) is arranged on the side wall of the sedimentation tank (1), the inner cavity of the first slag receiving box (13) is communicated with the slag discharge groove (12), the first slag receiving box (13) is provided with a first slag discharge plate (14), and the first slag discharge plate (14) is provided with a first handle (15); the first support plate (16) is arranged on the inner wall of the first slag receiving box (13) facing the sedimentation tank (1); the spring (17) is arranged on the end surface of the first support plate (16) facing the sedimentation tank (1), the end of the spring (17) is provided with a second support plate (18), and the end surface of the second support plate (18) facing the sedimentation tank (1) is provided with a sealing gasket (19) for closing the slag discharge groove (12); two groups of residue collection assemblies are arranged, and the two groups of residue collection assemblies correspond to the two groups of slag discharge grooves (12) one by one.

4. The energy-saving and environmentally friendly sewage treatment equipment with improved dissolution efficiency according to claim 1, It is characterized in that The transmission assembly comprises a first bevel gear (27) and a second bevel gear (28); the first bevel gear (27) is key-connected to the first rotating rod (23), the second bevel gear (28) is key-connected to the second rotating rod (29), and the second bevel gear (28) is meshed with the first bevel gear (27).

5. The energy-saving and environmentally friendly sewage treatment equipment with improved dissolution efficiency according to claim 1, It is characterized in that The flocculant adding component comprises a flocculant storage box (35), a second power device (36), a third rotating rod (37) and a pushing plate (38); the flocculant storage box (35) is arranged on the stirring box (30), and the flocculant storage box (35) is cylindrical; the second power device (36) is arranged on the flocculant storage box (35), the second power device (36) is transmission-connected to the third rotating rod (37), and the bottom of the third rotating rod (37) is vertically inserted into the flocculant storage box (35); the pushing plate (38) is vertically arranged on the outer wall of the third rotating rod (37), the pushing plate (38) is in contact with the inner circumferential wall of the flocculant storage box (35), and a plurality of groups of the pushing plates (38) are arranged. The push plates (38) are evenly arranged along the circumference with the axis of the third rotating rod (37) as the center, and a photoelectric sensor (39) for detecting the position of the push plates (38) is provided on the top of the flocculant storage box (35); a drop hole (40) is provided on the top of the stirring box (30), and the drop hole (40) is located between two groups of push plates (38); a plurality of feed plates (41) are provided on the top of the flocculant storage box (35), and the feed plates (41) are located between two adjacent groups of push plates (38), and the feed plates (41) are transparent plates, and a third handle (42) is provided on the feed plates (41); the control system is connected to the photoelectric sensor (39) for signal transmission, and the control system is connected to the second power device (36) for control.

6. The energy-saving and environmentally friendly sewage treatment equipment with improved dissolution efficiency according to claim 1, It is characterized in that The sediment collection assembly comprises a second slag receiving box (51) and a second slag discharge plate (52); the second slag receiving box (51) is arranged outside the bottom of the sedimentation tank (1), and the sediment discharge pipe (49) extends into the second slag receiving box (51); the second slag discharge plate (52) is rotatably arranged at the bottom of the second slag receiving box (51), and a second handle (53) is provided on the second slag discharge plate (52).

7. The energy-saving and environmentally friendly sewage treatment equipment with improved dissolution efficiency according to claim 1, It is characterized in that A guide platform (48) is provided at the bottom of the sedimentation tank (1). The upper end surface of the guide platform (48) is an inclined surface. The inclined surface is inclined downward from the left and right sides of the guide platform (48) toward the middle of the guide platform (48). The sedimentation outlet pipe (49) passes through the guide platform (48). The sedimentation outlet pipe (49) is located in the middle of the guide platform (48).

8. The energy-saving and environmentally friendly sewage treatment equipment with improved dissolution efficiency according to claim 1, It is characterized in that The heating temperature of the heating mechanism (45) is 30-40°C.

9. The energy-saving and environmentally friendly sewage treatment equipment with improved dissolution efficiency according to claim 1, It is characterized in that The stirring box (30), the second rotating rod (29), the stirring blade (32) and the flocculant inlet pipe (47) are all made of carbon steel with a resin coated surface.

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