An integrated urban water treatment device for deep purification and its water treatment method

Abstract

The present invention relates to the technical field of water treatment, and specifically relates to an integrated deep purification urban water treatment device and a water treatment method thereof, which includes a primary filtration mechanism, an anaerobic treatment tank, an aeration treatment tank, a sterilization treatment tank, and an ultrafiltration treatment mechanism connected in sequence. The primary filtration mechanism has a liquid inlet and a liquid outlet. The primary filtration mechanism includes three sequentially connected filtration chambers. Urban raw water enters the anaerobic treatment tank through the liquid outlet after passing through all the filtration chambers in sequence from the liquid inlet. A filtration sieve hole capable of screening out impurities is provided between adjacent filtration chambers. A sewage discharge component is also provided in the filtration chamber. A sewage discharge port is also provided on the primary filtration mechanism. A collection component is provided outside the primary filtration mechanism. The sewage discharge ports of all the filtration chambers are communicated with the collection component. Through the primary filtration mechanism, the present application effectively removes large particulate impurities in water through multi-stage filtration, reduces the discharge of urban raw water with impurities, and ensures the efficiency of subsequent treatment links and the preliminary purification of water quality.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, and specifically relates to an integrated deep purification urban water treatment device and a water treatment method thereof. Background Art

[0002] Due to its small volume, the integrated purification device is convenient to use and has low cost in suitable areas, and can meet a certain degree of urban raw water treatment requirements, thus effectively reducing the direct discharge of heavily polluted urban raw water. However, due to the limited treatment capacity and low treatment efficiency of the purification tank for urban raw water, with the acceleration of urbanization and the continuous growth of the population, this method will not be able to meet the gradually increasing urban raw water treatment requirements.

[0003] Chinese Patent Publication No. CN111807619B discloses a purification tank for water treatment and a use method thereof, including a tank body, a filter tank, an anaerobic tank and an aeration tank; the top of the tank body is open and installed with a tank body cover, and inside the tank body, a filter tank, an anaerobic tank and an aeration tank are arranged in sequence from left to right. The left end of the tank body is provided with a water inlet pipe in a penetrating manner, and a water inlet valve is arranged on the water inlet pipe. The right end of the water inlet pipe is connected to the water inlet of a water pump arranged inside the tank body. The water outlet of the water pump is connected to the tank cover arranged on the top of the filter tank through a branch pipe; a filtering unit is arranged inside the filter tank, and the middle of the tank cover is connected to one end of an outlet pipe of the tank body. The other end of the outlet pipe of the tank body extends to the bottom side inside the anaerobic tank, and an anaerobic bacteria bed is arranged inside the anaerobic tank through a support rod.

[0004] This purification tank preliminarily filters urban raw water through the filter tank to prevent larger impurities in the urban raw water from affecting the subsequent treatment process. However, after the filter tank preliminarily filters impurities, the impurities will gradually accumulate in the filter tank. If this accumulation phenomenon is not dealt with in time, the impurities that cannot be discharged for a long time will seriously affect the filtering effect of the filter tank, resulting in a decrease in filtering efficiency. With the continuous accumulation of impurities, the flow rate of the filter tank will also be restricted, and even blockage may occur, thus causing problems with the unsmooth flow of urban raw water. In addition, the impurities staying for a long time will not only reduce the service life of the filter, but may also become a breeding ground for bacteria, thereby causing secondary pollution of urban raw water and affecting the subsequent purification process and the final water quality.

[0005] In existing practice, there are also technical solutions for the filtering mechanism to discharge filtered impurities to maintain the filtering efficiency. However, the existing ways of discharging impurities generally wait for the impurities to precipitate and then provide a discharge channel at the bottom. Such a way not only cannot automatically sense the timing of impurity discharge, but more importantly, when discharging impurities, a large amount of urban raw water is often discharged together, and it is difficult to control the timely closing of the impurity discharge channel after discharging the impurities. This results in low efficiency of the primary filtering mechanism, and a large amount of urban raw water in the filtered impurities cannot be treated. Summary of the Invention

[0006] In view of the problems of the prior art, a deep purification integrated urban water treatment device is provided. The primary filtration mechanism preliminarily filters the raw urban water, and the preliminarily filtered raw urban water sequentially passes through an anaerobic treatment tank, an aeration treatment tank, a sterilization treatment tank and an ultrafiltration treatment mechanism. When the primary filtration mechanism preliminarily filters the raw urban water, the impurities filtered out can be continuously discharged outwards through the sewage discharge assembly, solving the problems that the existing preliminary treatment device for raw urban water cannot continuously and stably discharge impurities and a large amount of raw urban water is discharged along with the impurities.

[0007] To solve the problems of the prior art, the present invention provides a deep purification integrated urban water treatment device, including a primary filtration mechanism, an anaerobic treatment tank, an aeration treatment tank, a sterilization treatment tank and an ultrafiltration treatment mechanism that are connected in sequence. The primary filtration mechanism has a liquid inlet for directly pumping the raw urban water and a liquid outlet for pumping the filtered liquid into the anaerobic treatment tank. The primary filtration mechanism includes three sequentially connected filtration chambers. The raw urban water passes through all the filtration chambers in sequence from the liquid inlet and then enters the anaerobic treatment tank through the liquid outlet. Filtering sieve holes capable of screening out impurities are provided between adjacent filtration chambers. A sewage discharge assembly for collecting impurities is also provided in the filtration chamber. A sewage discharge port is also provided on the primary filtration mechanism, and the sewage discharge port is used to discharge the impurities collected by the sewage discharge assembly outwards. A collection assembly is provided outside the primary filtration mechanism, and all the sewage discharge ports are communicated with the collection assembly. The collection assembly has a sewage discharge pipe extending to the outside of the primary filtration mechanism; an anaerobic bacteria bed is provided in the anaerobic treatment tank; an aeration pipe is provided in the aeration treatment tank; and a bactericide is put in the sterilization treatment tank.

[0008] Preferably, the ultrafiltration treatment mechanism includes an ultrafiltration assembly one and an ultrafiltration assembly two. Both the ultrafiltration assembly one and the ultrafiltration assembly two have a water inlet, a water production port and a concentrated water port. An inlet water solenoid valve one is provided at the water inlet of the ultrafiltration assembly one, an inlet water solenoid valve two is provided at the water inlet of the ultrafiltration assembly two, a concentrated water solenoid valve one is provided at the concentrated water port of the ultrafiltration assembly one, a concentrated water solenoid valve two is provided at the concentrated water port of the ultrafiltration assembly two. The water production ports of the ultrafiltration assembly one and the ultrafiltration assembly two are communicated and provided with a water production pipe, and a water production solenoid valve is provided on the water production pipe. The inlet water solenoid valve one and the inlet water solenoid valve two are communicated with the sterilization treatment tank through pipelines.

[0009] Preferably, a pre-filter and a membrane front pressure pump are provided on the connecting pipeline between the sterilization treatment tank and the ultrafiltration treatment mechanism.

[0010] Preferably, the primary filtration mechanism further includes a filter cylinder. The sewage discharge port is annular and coaxially arranged on the filter cylinder. The sewage discharge assembly is arranged at the lowest end of the filtration chamber. The impurities in the filtration chamber are collected by the sewage discharge assembly and discharged to the collection assembly through the sewage discharge port.

[0011] Preferably, the primary filtration mechanism further includes a rotating shaft, a driving motor, a conical hopper, a conical cylinder, and a connecting rod. The rotating shaft is coaxially and rotatably arranged in the filter cylinder. The driving motor is arranged at the top of the filter cylinder, and the output shaft of the driving motor is in transmission connection with the rotating shaft. The conical hoppers are coaxially and equidistantly arranged on the rotating shaft. The outer diameter of the conical hopper gradually decreases from bottom to top. The diameter of the bottom end of the conical hopper is smaller than the inner diameter of the filter cylinder. A water passage is formed between the outer edge of the bottom end of the conical hopper and the inner peripheral wall of the filter cylinder. Coaxial cylindrical filter meshes are arranged between the upper conical hoppers and the conical cylinders. The conical cylinders are coaxially and equidistantly arranged in the filter cylinder at intervals with the conical hoppers. The bottom conical cylinder is fixedly connected to the bottom conical hopper through an upward connecting rod. A water inlet pipe extending upward and rotatably connected to the bottom conical hopper is arranged at the bottom end of the inner cavity of the filter cylinder. The outer edge of the conical cylinder is close to the sewage outlet and is connected to the collection assembly; the aperture of the cylindrical filter mesh at the top end of the top conical hopper is smaller than the aperture of the cylindrical filter mesh at its bottom end.

[0012] Preferably, the outer edge of the conical cylinder extends downward to form a rotating cylinder. A connecting ring extending inward is arranged at the bottom end of the sewage outlet. A sealing cylinder extending upward is arranged on the inner peripheral wall of the connecting ring. The sealing cylinder is in sealed and rotational connection with the rotating cylinder. The sewage discharge assembly includes a spiral blade, an arc-shaped lifting block, and an elastic element. The spiral blade is coaxially and fixedly arranged on the upper part of the outer peripheral wall of the rotating cylinder. Filter holes are arranged on the spiral blade. There are at least two arc-shaped lifting blocks. The arc-shaped lifting blocks are circumferentially distributed on the outside of the rotating cylinder. The arc-shaped lifting blocks are coaxially and slidably arranged on the top of the connecting ring. The top surface of the arc-shaped lifting block abuts against the top end of the sewage outlet. The inner peripheral wall of the arc-shaped lifting block is in sealed cooperation with the outer peripheral wall of the rotating cylinder. The elastic element is arranged between the arc-shaped lifting block and the connecting ring.

[0013] Preferably, the top end of the arc-shaped lifting block is a conical surface, and the outer diameter of the conical surface gradually increases from top to bottom. The top of the arc-shaped lifting block extends to the outside of the sewage outlet.

[0014] Preferably, a guiding column extending downward is arranged at the bottom end of the arc-shaped lifting block. The guiding column slidably penetrates through the connecting ring in the vertical direction.

[0015] Preferably, the collection assembly includes a collection cylinder coaxially arranged at the bottom of the outside of the filter cylinder, and guiding rings coaxially and equidistantly arranged on the outer peripheral wall of the collection cylinder. The guiding rings are located at the bottom end of the sewage outlet. The bottom surface of the inner cavity of the collection cylinder is inclined and a sewage outlet pipe is arranged at the lowest end.

[0016] A method for deep purification of integrated urban water treatment uses a device for deep purification of integrated urban water treatment, including the following steps:

[0017] Step 1, pump urban raw water into the primary filtration mechanism through the liquid inlet, screen out impurities in the urban raw water, and discharge the screened impurities;

[0018] Step 2: Guide the water preliminarily filtered by the primary filtration mechanism to pass through the anaerobic treatment tank, aeration treatment tank, sterilization treatment tank, and ultrafiltration treatment mechanism in sequence, and perform anaerobic, aeration, sterilization, and ultrafiltration treatments on the preliminarily filtered raw urban water in sequence.

[0019] The beneficial effects of this application compared with the prior art are as follows:

[0020] Efficient water quality purification: The primary filtration mechanism effectively removes large particulate impurities in the water through multi-stage filtration, ensuring the efficiency of subsequent treatment processes and the preliminary purification of water quality.

[0021] Timely removal of impurities: The design of the sewage discharge component and sewage outlet can timely remove the impurities generated during the filtration process, maintain the normal operation of the filtration chamber, and reduce the maintenance cost.

[0022] Improved water treatment process: The sequentially connected treatment units (anaerobic treatment tank, aeration treatment tank, sterilization treatment tank, ultrafiltration treatment mechanism) form a complete water treatment process, ensuring that the water quality is effectively improved in each link.

[0023] Enhanced water quality safety: Disinfectants are put into the sterilization treatment tank to ensure that pathogenic microorganisms in the water are effectively eliminated, and the final effluent is safe and hygienic.

[0024] Improved water quality purity: The ultrafiltration treatment mechanism further removes tiny suspended solids and dissolved substances in the water through a high-performance ultrafiltration membrane, ensuring the clarity and transparency of the effluent.

[0025] For the primary filtration mechanism provided in this application, through the rotation of the spiral sheet with filter holes, the raw urban water is spirally pressed downwards. During the process, impurities continuously accumulate at the bottom of the spiral sheet, while the water without impurities passes through the filter holes of the spiral sheet. Thus, the downward pressure of the water without impurities on the lower arc-shaped lifting block is relatively small, while the impurities accumulated at the bottom of the spiral sheet can form a relatively large downward pressure on the lower arc-shaped lifting block after accumulating to a certain amount, thereby realizing the automatic discharge of impurities. When the discharge reaches a certain level, the downward pressure of the impurities on the lower arc-shaped lifting block rapidly weakens, and thus the lower arc-shaped lifting block rises, and the impurity discharge channel quickly closes. Thereby, efficient impurity discharge can be achieved, reducing the synchronous discharge of raw urban water and improving the filtration efficiency of the primary filtration mechanism. Description of the Drawings

[0026] Figure 1 is a perspective view of an integrated deep purification urban water treatment device from the first perspective;

[0027] Figure 2 is a perspective view of an integrated deep purification urban water treatment device from the second perspective;

[0028] Figure 3It is a three-dimensional view of the ultrafiltration treatment mechanism in a deep purification integrated urban water treatment device;

[0029] Figure 4 It is a three-dimensional sectional view of the primary treatment mechanism in a deep purification integrated urban water treatment device;

[0030] Figure 5 It is a sectional view of the primary treatment mechanism in a deep purification integrated urban water treatment device;

[0031] Figure 6 It is Figure 5 The partial enlarged view of part A of

[0032] Figure 7 It is Figure 5 The partial enlarged view of part A of when discharging impurities;

[0033] Figure 8 It is a three-dimensional view of a deep purification integrated urban water treatment device;

[0034] Figure 9 It is a schematic diagram of the internal structure of a deep purification integrated urban water treatment device;

[0035] Figure 10 It is a three-dimensional view of the conical cylinder and the arc-shaped lifting block in a deep purification integrated urban water treatment device.

[0036] The reference numerals in the figure are: 1, primary filtration mechanism; 111, liquid inlet; 112, liquid outlet; 113, filtration chamber; 114, sewage outlet; 1141, connecting ring; 1142, sealing cylinder; 12, filtration screen holes; 13, sewage discharge assembly; 131, spiral blade; 132, arc-shaped lifting block; 133, elastic element; 134, guide post; 14, collection assembly; 141, collection cylinder; 142, guiding ring; 143, sewage discharge pipe; 15, filter cylinder; 151, water inlet pipe; 161, rotating shaft; 162, drive motor; 163, conical hopper; 164, conical cylinder; 1641, rotating cylinder; 165, cylindrical filter net; 2, anaerobic treatment tank; 3, aeration treatment tank; 4, sterilization treatment tank; 5, ultrafiltration treatment mechanism; 51, ultrafiltration component one; 52, ultrafiltration component two; 53, inlet solenoid valve one; 54, inlet solenoid valve two; 55, concentrated water solenoid valve one; 56, concentrated water solenoid valve two; 57, product water pipe; 571, product water solenoid valve; 6, pre-filter; 7, pre-membrane pressure pump. Specific embodiments

[0037] In order to further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0038] AsFigure 1 , Figure 2 and Figure 3 As shown in

[0039] , the present application provides:

[0040] An integrated deep purification urban water treatment device, which is designed to include a primary filtration mechanism 1, an anaerobic treatment tank 2, an aeration treatment tank 3, a sterilization treatment tank 4 and an ultrafiltration treatment mechanism 5 that are connected in sequence, forming a complete water treatment process.

[0041] The primary filtration mechanism 1 has a liquid inlet 111 through which raw urban water can be directly pumped in, and a liquid outlet 112 that pumps the filtered liquid into the anaerobic treatment tank 2, ensuring that the raw water can efficiently enter the treatment system. The internal structure of the primary filtration mechanism 1 is reasonable, including three sequentially connected filtration chambers 113. The raw urban water passes through all the filtration chambers 113 in sequence through the liquid inlet 111. After sufficient physical filtration, it enters the anaerobic treatment tank 2 through the drain outlet. Between adjacent filtration chambers 113, there are filter sieve holes 12 that can screen out impurities to effectively intercept larger particulate matter and ensure the preliminary purification of water quality. In addition, a sewage discharge component 13 for collecting impurities is also provided in the filtration chamber 113, which can timely discharge the impurities generated during the filtration process to maintain the normal operation of the filtration chamber 113. For the convenience of maintenance and cleaning, a sewage discharge port 114 is also provided on the primary filtration mechanism 1, which is specifically used to discharge the impurities collected by the sewage discharge component 13 from the filtration chamber 113, reducing the maintenance cost. A collection component 14 is provided on the outside of the primary filtration mechanism 1. The sewage discharge ports 114 of all the filtration chambers 113 are connected to this collection component 14. The collection component 14 has a sewage discharge pipe extending to the outside to regularly discharge the collected impurities to ensure the efficient operation of the system.

[0042] Inside the anaerobic treatment tank 2, an anaerobic bacteria bed is provided, which uses the metabolic action of anaerobic bacteria to further decompose and remove organic pollutants in the water, improving the purification effect of water quality. Subsequently, in the aeration treatment tank 3, an aeration pipe is provided. By delivering oxygen to the water, it promotes the reproduction and activity of aerobic microorganisms, thereby effectively removing residual organic matter and ammonia nitrogen in the water and further improving water quality. Finally, in the sterilization treatment tank 4, a bactericide is put in to ensure that pathogenic microorganisms in the water are effectively eliminated, guaranteeing the safety and hygiene of the final effluent.

[0043] As the last process in the entire water treatment process, the ultrafiltration treatment mechanism 5 is responsible for further improving the water quality of the effluent to ensure that it meets or exceeds relevant water quality standards to meet the needs of urban water use. The ultrafiltration treatment mechanism 5 usually consists of a series of high-performance ultrafiltration membrane components. These membranes have extremely small pore sizes and can effectively intercept fine particles, colloids, bacteria, and certain viruses in the water, ensuring the clarity and transparency of the effluent. By introducing the water treated by sterilization into the ultrafiltration treatment mechanism 5, during the process of the water flowing through the ultrafiltration membrane, the filtration function of the membrane can effectively remove tiny suspended solids and dissolved substances in the water, further improving the purity of water quality.

[0044] The entire treatment process not only achieves the deep purification of raw urban water but also provides a strong guarantee for the sustainable utilization of water resources.

[0045] Such as Figure 2 and Figure 3As shown in the figure, the ultrafiltration treatment mechanism 5 includes an ultrafiltration module one 51 and an ultrafiltration module two 52. Both the ultrafiltration module one 51 and the ultrafiltration module two 52 have a water inlet, a water production outlet, and a concentrated water outlet. An inlet solenoid valve one 53 is provided at the water inlet of the ultrafiltration module one 51, an inlet solenoid valve two 54 is provided at the water inlet of the ultrafiltration module two 52, a concentrated water solenoid valve one 55 is provided at the concentrated water outlet of the ultrafiltration module one 51, a concentrated water solenoid valve two 56 is provided at the concentrated water outlet of the ultrafiltration module two 52. The water production outlets of the ultrafiltration module one 51 and the ultrafiltration module two 52 are connected and provided with a water production pipe 57. A water production solenoid valve 571 is provided on the water production pipe 57. The inlet solenoid valve one 53 and the inlet solenoid valve two 54 are connected to the sterilization treatment tank 4 through pipelines.

[0046] The ultrafiltration membrane has a weak treatment capacity for water bodies with extremely high turbidity and accompanied by sediment, which is likely to cause rapid blockage of the membrane filaments and affect the water output. And ordinary forward flushing is difficult to clean thoroughly. For this usage scenario, a dual ultrafiltration membrane process can be adopted. Through automatic control, on the basis of the original forward flushing, the water output of a single ultrafiltration membrane is used to backwash another ultrafiltration membrane, so that the ultrafiltration membrane can recover its filtration treatment capacity to the greatest extent.

[0047] In this application, when it is necessary to perform forward flushing on the ultrafiltration module one 51 and the ultrafiltration module two 52, the water production solenoid valve 571 is closed, and the inlet solenoid valve one 53, the inlet solenoid valve two 54, the concentrated water solenoid valve one 55, and the concentrated water solenoid valve two 56 are opened. Flushing liquid is injected into the ultrafiltration module one 51 and the ultrafiltration module two 52 through the inlet solenoid valve one 53 and the inlet solenoid valve two 54, and all the flushing liquid flows out from the concentrated water solenoid valve one 55 and the concentrated water solenoid valve two 56 at a high flow rate, so as to perform high-speed scouring on the membrane surface and reduce the enrichment of pollutants on the membrane surface.

[0048] When it is necessary to perform backwashing on the ultrafiltration module two 52, the water production solenoid valve 571, the inlet solenoid valve two 54, and the concentrated water solenoid valve one 55 are closed, and the inlet solenoid valve one 53 and the concentrated water solenoid valve two 56 are opened. Flushing liquid is pumped into the ultrafiltration module one 51 through the inlet solenoid valve one 53. The flushing liquid enters the ultrafiltration fiber from the clear liquid side of the ultrafiltration module two 52, permeates through the membrane and flows to the concentrated water side. Through a large flow of backwashing water, the pollutants in the membrane pores and on the surface of the hollow fiber membrane are washed away, and the washed pollutants are discharged through the concentrated water solenoid valve two 56.

[0049] As Figure 2 As shown in the figure, a pre-filter 6 and a membrane front pressure pump 7 are provided on the connecting pipeline between the sterilization treatment tank 4 and the ultrafiltration treatment mechanism 5.

[0050] A pre-filter 6 and a pre-membrane pressure pump 7 are provided on the connecting pipeline between the sterilization treatment tank 4 and the ultrafiltration treatment mechanism to further improve the efficiency and safety of the water treatment system. Specifically, the main function of the pre-filter 6 is to perform additional filtration on the water after sterilization treatment to remove larger particles and suspended matters that may remain. This process helps protect the ultrafiltration membrane from contamination, avoid membrane blockage, thereby extending the service life of the ultrafiltration membrane and improving its filtration performance.

[0051] The introduction of the pre-membrane pressure pump 7 is to ensure that the water flow can flow at an appropriate pressure before entering the ultrafiltration treatment mechanism. This design can effectively increase the flow rate of water, promote the filtration process of water through the ultrafiltration membrane, and ensure the efficient removal of fine particles, colloids and pathogenic microorganisms in the water. The role of the pressure pump can also overcome the pressure loss in the pipeline system to ensure the stable operation of the treatment system.

[0052] As Figure 4 and Figure 5 shown, the primary filtration mechanism 1 further includes a filter cylinder 15. The sewage discharge port 114 is annular and coaxially arranged on the filter cylinder 15. The sewage discharge component 13 is arranged at the lowest end of the filtration cavity 113. The impurities in the filtration cavity 113 are collected by the sewage discharge component 13 and discharged to the collection component 14 through the sewage discharge port 114.

[0053] The filter cylinder 15 has an annular and coaxially arranged sewage discharge port 114, enabling more uniform distribution and efficient filtration of the water flow during the process of passing through the filter cylinder 15. This annular design not only optimizes the water flow path but also ensures that impurities in the water can be effectively captured and removed, minimizing the occurrence of filtration dead corners to the greatest extent.

[0054] The sewage discharge port 114 is located on the filter cylinder 15 and closely cooperates with the sewage discharge component 13 to form an efficient dirt collection system. The sewage discharge component 13 is arranged at the lowest end of the filtration cavity 113 to ensure that the impurities accumulated in the filtration cavity 113 can be quickly and effectively collected. Through the sewage discharge component 13, the precipitated impurities in the filtration cavity 113 are timely captured, avoiding the problem of recontamination caused during the filtration process.

[0055] After the filtered water flow concentrates the impurities to the sewage discharge component 13, it smoothly discharges to the collection component 14 through the annular sewage discharge port 114. This design not only simplifies the maintenance process but also enhances the self-cleaning ability of the entire filtration system. Since impurities can be efficiently discharged, the cleaning frequency of the filter cylinder 15 is reduced, further improving the operation efficiency and service life of the equipment.

[0056] As Figure 5 、 Figure 6 、 Figure 7 and Figure 8As shown in the figure, the primary filtration mechanism 1 further includes a rotating shaft 161, a driving motor 162, a conical hopper 163, a conical cylinder 164 and a connecting rod. The rotating shaft 161 is coaxially and rotatably arranged in the filter cylinder 15. The driving motor 162 is arranged at the top end of the filter cylinder 15, and the output shaft of the driving motor 162 is in transmission connection with the rotating shaft 161. The conical hoppers 163 are coaxially and equidistantly arranged on the rotating shaft 161. The outer diameter of the conical hopper 163 gradually decreases from bottom to top. The diameter of the bottom end of the conical hopper 163 is smaller than the inner diameter of the filter cylinder 15. A water passage is formed between the outer edge of the bottom end of the conical hopper 163 and the inner peripheral wall of the filter cylinder 15. Coaxial cylindrical filter meshes 165 are arranged between the upper conical hoppers 163 and the conical cylinders 164. The conical cylinders 164 are coaxially and equidistantly arranged in the filter cylinder 15 at intervals with the conical hoppers 163. The bottom conical cylinder 164 is fixedly connected to the bottom conical hopper 163 through an upward connecting rod. A water inlet pipe 151 extending upward and rotatably connected to the bottom conical hopper 163 is arranged at the bottom end of the inner cavity of the filter cylinder 15. The outer edge of the conical cylinder 164 is close to the sewage outlet 114 and is connected to the collection assembly 14; the aperture of the cylindrical filter mesh 165 at the top end of the top conical hopper 163 is smaller than the aperture of the cylindrical filter mesh 165 at its bottom end.

[0057] Through the equidistant arrangement of the conical hoppers 163 and the conical cylinders 164, the flow path of the urban raw water can be effectively increased, and thus the filtration effect can be improved. The rotating shaft 161 is coaxially and rotatably arranged in the filter cylinder 15. The driving motor 162 is located at the top end of the filter cylinder 15, and its output shaft is in transmission connection with the rotating shaft 161, forming a stable and efficient driving system. Such a designed driving mechanism not only simplifies the power transmission process but also ensures the smooth operation of the filtration process.

[0058] The conical hoppers 163 are coaxially and equidistantly arranged on the rotating shaft 161 and are designed to have a diameter that gradually decreases from top to bottom. The diameter of the bottom end of the conical hopper 163 is smaller than the inner diameter of the filter cylinder 15. This design ensures that the water flow can pass through smoothly, and at the same time forms an effective water passage, promoting the continuity and uniformity of the water flow. Coaxial cylindrical filter meshes 165 are arranged at both the bottom end and the top end of the top conical hopper 163, which can effectively intercept fine impurities in the water, thereby further improving the filtration efficiency.

[0059] The conical cylinders 164 are coaxially and equidistantly arranged in the filter cylinder 15, and their structural design aims to enhance the water flow distribution effect. The top conical cylinder 164 is fixedly connected to the cylindrical filter mesh 165 at the top end of the conical hopper 163, the middle conical cylinder 164 is connected to the cylindrical filter mesh 165 at the bottom end of the conical hopper 163, and the bottom conical cylinder 164 is fixedly connected to the bottom conical hopper 163 through a connecting rod. Such a connection method ensures that the water flow can maintain good fluidity and filtration effect when passing through different filtration stages.

[0060] The diameters of the bottom and middle conical hoppers 163 gradually decrease from top to bottom. Such a design not only enhances the concentration effect of the water flow but also improves the sedimentation efficiency of impurities during the filtration process. At the bottom of the inner cavity of the filter cylinder 15, a water inlet pipe 151 is provided that extends upward and is rotatably connected to the bottom conical hopper 163, ensuring the smooth entry of water flow and optimizing the water inlet flow rate of the entire filtration system.

[0061] In addition, the outer edges of the bottom and middle conical cylinders 164 are close to the sewage outlet 114 and are connected to the collection assembly 14. Such a design enables impurities to be quickly collected and discharged during the filtration process, reducing the risk of recontamination. The aperture of the cylindrical filter net 165 at the top of the topmost conical hopper 163 is smaller than the aperture of the cylindrical filter net 165 at its bottom. This design effectively prevents larger particulate matter from entering the filtration chamber 113 at a high position. In this way, impurities of different particle sizes are collected through different filtration chambers 113, avoiding the blockage of the filter holes during the preliminary filtration, thereby ensuring the high efficiency of the filtration process and the purity of the water quality.

[0062] As Figure 6 and Figure 7 shown, the outer edge of the conical cylinder 164 extends downward to form a rotating cylinder 1641. At the bottom of the sewage outlet 114, a connecting ring 1141 that extends inward is provided. On the inner peripheral wall of the connecting ring 1141, a sealing cylinder 1142 that extends upward is provided. There is a sealed rotating connection between the sealing cylinder 1142 and the rotating cylinder 1641. The sewage discharge assembly 13 includes a spiral blade 131, an arc-shaped lifting block 132, and an elastic element 133. The spiral blade 131 is coaxially and fixedly arranged on the upper part of the outer peripheral wall of the rotating cylinder 1641. Filter holes are provided on the spiral blade 131. There are at least two arc-shaped lifting blocks 132. The arc-shaped lifting blocks 132 are circumferentially distributed on the outside of the rotating cylinder 1641. The arc-shaped lifting blocks 132 are coaxially slidably arranged on the top of the connecting ring 1141. The top surface of the arc-shaped lifting block 132 abuts against the top of the sewage outlet 114. There is a sealed fit between the inner peripheral wall of the arc-shaped lifting block 132 and the outer peripheral wall of the rotating cylinder 1641. The elastic element 133 is arranged between the arc-shaped lifting block 132 and the connecting ring 1141.

[0063] The outer edge of the bottom and middle conical cylinders 164 extends downward to form a rotating cylinder 1641. This design not only enhances the structural stability but also provides a more flexible operation space for the subsequent sewage discharge process. At the bottom of the sewage outlet 114, a connecting ring 1141 that extends inward is provided, and on the inner circumferential surface of the connecting ring 1141, a sealing cylinder 1142 that extends upward is provided. A sealed rotating connection is adopted between this sealing cylinder 1142 and the rotating cylinder 1641, ensuring the sealing performance during the sewage discharge process, preventing the leakage of urban raw water, and improving the safety and reliability of the system.

[0064] An annular sewage discharge channel is formed between the outer circumferential surface of the rotating cylinder 1641 and the inner circumferential surface of the filter cylinder 15.

[0065] When the conical cylinder 164 rotates, the rotating spiral blade 131 can extrude the impurities in the annular sewage discharge channel, so that the impurities can gather at the top of the arc-shaped lifting block 132. When the pressure of the impurities on the arc-shaped lifting block 132 is greater than the elastic force of the elastic element 133, the arc-shaped lifting block 132 moves downward, so that a sewage discharge gap is formed between the arc-shaped lifting block 132 and the top of the sewage outlet 114, and the impurities can be discharged outwards from the sewage discharge gap.

[0066] Multiple arc-shaped lifting blocks 132 can open the sewage discharge gap when there are more impurities in a local area of the sewage discharge channel, avoiding the phenomenon of overflow of the original urban water caused by the opening of the sewage discharge gap in other places while there are fewer impurities.

[0067] Filter holes are provided on the spiral blade 131, so that the rotating spiral blade 131 can reciprocally extrude the impurities downward, so that the impurities are dehydrated and discharged outwards from the sewage discharge gap, while the water can pass through smoothly, further enhancing the filtering effect.

[0068] The primary filtering mechanism in this application adopts multiple filtering chambers 113, which can effectively collect impurities of different particle sizes respectively. Through this design, the original urban water can flow in a zigzag manner in the relatively small filtering chamber 113, making full use of the power of the water flow to make the impurities easier to gather at the top of the annular sewage discharge channel. This process greatly improves the separation efficiency of the impurities.

[0069] Compared with the prior art urban raw water pre-treatment device, the latter usually filters impurities through a single filter screen and directly discharges the impurities through a sewage discharge pipe. The primary filtering mechanism 1 of this application adopts a scheme of impurity filtration and zigzag collection, significantly improving the pre-treatment effect of urban raw water. Because of its smaller volume and more compact design, it is more suitable for integrated urban water treatment devices, which can effectively save space and improve the treatment efficiency.

[0070] As Figure 5 shown, the top of the arc-shaped lifting block 132 is a conical surface, the outer diameter of the conical surface gradually increases from top to bottom, and the top of the arc-shaped lifting block 132 extends to the outside of the sewage outlet 114.

[0071] By arranging a conical surface at the top of the arc-shaped lifting block 132, when the arc-shaped lifting block 132 descends, a smaller gap can be opened between the conical surface and the top of the sewage outlet 114, and at the same time, the impurities can slide out of the sewage outlet 114 along the inclined conical surface.

[0072] As Figure 6As shown, a guiding column 134 extending downward is provided at the bottom end of the arc-shaped lifting block 132, and the guiding column 134 slidably penetrates through the connecting ring 1141 in the vertical direction.

[0073] The arc-shaped lifting block 132 can be stably lifted and lowered longitudinally through the guiding column 134, guiding and positioning the arc-shaped lifting block 132, and improving the stability of the structure.

[0074] As Figure 8 , Figure 9 and Figure 10 As shown, the collection assembly 14 includes a collection cylinder 141 coaxially arranged at the outer bottom of the filter cylinder 15, and guiding rings 142 coaxially and equidistantly arranged on the outer peripheral wall of the collection cylinder 141. The guiding rings 142 are located at the bottom end of the sewage outlet 114, and the bottom surface of the inner cavity of the collection cylinder 141 is inclined and a sewage outlet pipe 143 is provided at the lowest end.

[0075] The impurities discharged through the sewage outlet 114 fall on the top end of the guiding ring 142. Under the action of the inclined surface at the top end of the guiding ring 142, the impurities fall on the bottom end of the inner cavity of the collection cylinder 141. The bottom end of the inner cavity of the collection cylinder 141 is inclined, so that the impurities slide to the lowest end of the inner cavity under the action of the inclined surface and are centrally discharged outward through the sewage outlet.

[0076] The main creative contribution of this application is to provide a primary filtration mechanism 1. Although there are technical solutions in the existing practice to discharge the filtered impurities to maintain the filtration efficiency, the existing methods of discharging impurities generally wait for the impurities to precipitate and then provide a discharge channel at the bottom. Such a method not only cannot automatically sense the timing of impurity discharge, but more importantly, a large amount of urban raw water is often discharged together when the impurities are discharged, and it is difficult to control the timely closing of the impurity discharge channel after the impurities are discharged. This results in low efficiency of the primary filtration mechanism 1, and a large amount of urban raw water in the filtered impurities cannot be treated.

[0077] In the primary filtration mechanism 1 provided by this application, through the rotation of the spiral sheet 131 with filter holes, the urban raw water is spirally pressed downward. During the process, impurities continuously accumulate at the bottom of the spiral sheet 131, and the water without impurities passes through the filter holes of the spiral sheet 131. Therefore, the downward pressure of the water without impurities on the arc-shaped lifting block 132 below is relatively small, while the impurities accumulated at the bottom of the spiral sheet 131 can form a relatively large downward pressure on the arc-shaped lifting block 132 below after accumulating to a certain amount, thereby realizing the automatic discharge of impurities. When the discharge reaches a certain degree, the downward pressure of the impurities on the arc-shaped lifting block 132 below rapidly weakens, and thus the arc-shaped lifting block 132 below rises, and the impurity discharge channel is quickly closed. Thus, efficient impurity discharge can be achieved, reducing the synchronous discharge of urban raw water. The filtration efficiency of the primary filtration mechanism is improved.

[0078] A method for deep purification of integrated urban water treatment, which is processed by an integrated urban water treatment device for deep purification, comprises the following steps:

[0079] Step 1: Pump the urban raw water into the primary filtration mechanism 1 through the liquid inlet 111, screen out the impurities in the urban raw water and discharge the screened impurities;

[0080] Step 2: Guide the water preliminarily filtered by the primary filtration mechanism 1 to pass through the anaerobic treatment tank 2, the aeration treatment tank 3, the sterilization treatment tank 4 and the ultrafiltration treatment mechanism 5 in sequence, and perform anaerobic, aeration, sterilization and ultrafiltration treatments on the preliminarily filtered urban raw water in sequence.

[0081] The above embodiments only represent one or several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A deep purification integrated urban water treatment device, characterized in that: It includes a primary filtering mechanism, an anaerobic treatment box, an aeration treatment box, a sterilization treatment box and an ultrafiltration treatment mechanism which are connected in sequence. The primary filtering mechanism has a liquid inlet for directly pumping urban raw water, and a liquid outlet for pumping filtered liquid into the anaerobic treatment box. The primary filtering mechanism includes three filter chambers which are connected in sequence. Urban raw water passes through all the filter chambers in sequence from the liquid inlet and then enters the anaerobic treatment box through the liquid outlet. Filter mesh holes are provided between adjacent filter chambers. A sewage discharge component for collecting impurities is also provided in the filter chamber. A sewage discharge port is also provided on the primary filtering mechanism. The sewage discharge port is used to discharge impurities collected by the sewage discharge component to the outside. A collecting component is provided on the outside of the primary filtering mechanism. All sewage discharge ports are connected to the collecting component. The collecting component has a sewage discharge pipe extending to the outside of the primary filtering mechanism. An anaerobic bed is provided in the anaerobic treatment box. An aeration pipe is provided in the aeration treatment box. A bactericide is placed in the sterilization treatment box. The primary filtering mechanism also includes a filtering cylinder, a rotating shaft, a driving motor, a conical bucket, a conical cylinder and a connecting rod; The outer edge of the conical cylinder extends downward to form a rotating cylinder, and a connecting ring extending inward is provided at the bottom end of the sewage outlet, and a sealing cylinder extending upward is provided on the inner peripheral wall of the connecting ring, and the sealing cylinder and the rotating cylinder are sealed and rotatably connected, and the sewage discharge assembly includes a spiral sheet, an arc-shaped lifting block and an elastic element, the spiral sheet is coaxially fixedly arranged on the upper part of the outer peripheral wall of the rotating cylinder, and a filter hole is arranged on the spiral sheet, and there are at least two arc-shaped lifting blocks, which are distributed circumferentially on the outer side of the rotating cylinder and coaxially slidably arranged on the top of the connecting ring, and the top surface of the arc-shaped lifting block abuts against the top of the sewage outlet, and the inner peripheral wall of the arc-shaped lifting block is sealed and matched with the outer peripheral wall of the rotating cylinder, and the elastic element is arranged between the arc-shaped lifting block and the connecting ring; The rotating shaft is coaxially rotatably arranged in the filter cartridge, the conical buckets are coaxially and evenly spacedly arranged on the rotating shaft, the outer diameter of the conical buckets gradually decreases from bottom to top, the diameter of the bottom end of the conical buckets is smaller than the inner diameter of the filter cartridge, a water passage is formed between the outer edge of the bottom end of the conical buckets and the inner circumferential wall of the filter cartridge, the conical cartridges are coaxially and evenly spacedly arranged in the filter cartridge with the conical buckets, a coaxial cylindrical filter screen is arranged between the conical buckets and the conical cartridges at the upper part, and the bottom conical cartridge is fixedly connected to the bottom conical bucket by an upward connecting rod.

2. A deep purification integrated urban water treatment device according to claim 1, characterized in that: The ultrafiltration treatment mechanism includes an ultrafiltration component 1 and an ultrafiltration component 2, both of which have a water inlet, a water production port and a concentrated water port. The water inlet of the ultrafiltration component 1 is provided with a water inlet solenoid valve 1, the water inlet of the ultrafiltration component 2 is provided with a water inlet solenoid valve 2, the concentrated water port of the ultrafiltration component 1 is provided with a concentrated water solenoid valve 1, the concentrated water port of the ultrafiltration component 2 is provided with a concentrated water solenoid valve 2, the water production ports of the ultrafiltration component 1 and the ultrafiltration component 2 are connected and provided with a water production pipe, the water production pipe is provided with a water production solenoid valve, and the water inlet solenoid valve 1 and the water inlet solenoid valve 2 are connected with the sterilization treatment box through a pipeline.

3. The deep purification integrated urban water treatment device according to claim 1, characterized in that: The connection pipeline between the sterilization treatment box and the ultrafiltration treatment mechanism is provided with a pre-filter and a pre-membrane pressure pump.

4. A deep purification integrated urban water treatment device according to any one of claims 1 to 3, characterized in that: The sewage outlet is annular and coaxially arranged on the filter cartridge, the sewage outlet component is arranged at the bottom end of the filter cavity, and the impurities in the filter cavity are collected by the sewage outlet component and discharged to the collection component through the sewage outlet.

5. A deep purification integrated urban water treatment device according to claim 4, characterized in that: The driving motor is arranged at the top of the filter cartridge, and the output shaft of the driving motor is drivingly connected to the rotating shaft. The bottom end of the inner cavity of the filter cartridge is provided with a water inlet pipe extending upward and rotatably connected to the bottom conical cartridge. The outer edge of the conical cartridge is close to the sewage outlet and connected to the collecting assembly; the aperture of the cylindrical filter screen at the top of the topmost conical bucket is smaller than the aperture of the cylindrical filter screen at its bottom.

6. A deep purification integrated urban water treatment device according to claim 5, characterized in that: The top of the arc-shaped lifting block is a conical surface, the outer diameter of the conical surface gradually increases from top to bottom, and the top of the arc-shaped lifting block extends to the outside of the sewage outlet.

7. A deep purification integrated urban water treatment device according to claim 5 or 6, characterized in that: A guide column extending downward is arranged at the bottom end of the arc-shaped lifting block, and the guide column slides along the vertical direction and penetrates the connecting ring.

8. A deep purification integrated urban water treatment device according to any one of claims 5-6, characterized in that: The collecting assembly comprises a collecting cylinder coaxially arranged at the outer bottom of the filter cylinder, and a guide ring coaxially arranged at equal intervals on the outer peripheral wall of the collecting cylinder. The guide ring is located at the bottom end of the sewage outlet. The bottom surface of the inner cavity of the collecting cylinder is inclined and a sewage outlet pipe is arranged at the lowest end.

9. A deep purification integrated urban water treatment method, characterized in that: The method of treating water using the deep purification integrated urban water treatment device as claimed in claim 1 comprises the following steps: Step 1, pumping urban raw water into the primary filtering mechanism through the liquid inlet, screening out impurities in the urban raw water and discharging the screened impurities; Step 2: Guide the water initially filtered by the primary filtration mechanism to pass through an anaerobic treatment box, an aeration treatment box, a sterilization treatment box and an ultrafiltration treatment mechanism in sequence, and perform anaerobic, aeration, sterilization and ultrafiltration treatment on the initially filtered urban raw water in sequence.

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