Deep purification integrated town water treatment device and water treatment method thereof

Abstract

The invention relates to the technical field of water treatment, in particular to a deep-purification integrated town water treatment device and a water treatment method thereof.The deep-purification integrated town water treatment device comprises a primary filtering mechanism, an anaerobic treatment box, an aeration treatment box, a sterilization treatment box and an ultrafiltration treatment mechanism which are sequentially communicated, and the primary filtering mechanism is provided with a liquid inlet and a liquid outlet; the primary filtering mechanism comprises three filtering cavities which are communicated in sequence, urban raw water sequentially passes through all the filtering cavities from the liquid inlet and then enters the anaerobic treatment box through the liquid outlet, filtering sieve holes capable of sieving impurities are formed between the adjacent filtering cavities, a sewage discharging assembly is further arranged in each filtering cavity, a sewage discharging opening is further formed in the primary filtering mechanism, and the sewage discharging opening is communicated with the filtering cavity. The outer side of the primary filtering mechanism is provided with a collecting assembly, sewage draining outlets of all the filtering cavities are communicated with the collecting assembly, large-particle impurities in water are effectively removed through multi-stage filtering of the primary filtering mechanism, the situation that urban raw water is discharged along with the impurities is reduced, and the efficiency of subsequent treatment links and primary purification of water quality are ensured.

Description

Technical Field

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

[0002] The integrated purification device is small in size, easy to use and low in cost in suitable areas, and can meet a certain degree of urban raw water treatment needs, thereby effectively reducing the direct discharge of heavily polluted urban raw water. However, due to the limited urban raw water treatment capacity and low treatment efficiency of the purification tank, with the acceleration of urbanization and the continuous growth of population, this method will not be able to meet the increasing urban raw water treatment needs.

[0003] Chinese patent publication number CN111807619B discloses a purification tank for water treatment and a method of using the purification tank, which includes a tank body, a filter tank, an anaerobic box and an aeration box. The top opening of the tank body is provided with a tank body cover, and the inside of the tank body is provided with a filter tank, an anaerobic box and an aeration box in sequence from left to right. The left end of the tank body is penetrated by a water inlet pipe, the water inlet pipe is provided with a water inlet valve, and the right end of the water inlet pipe is connected to the water inlet of a water pump provided inside the tank body, and the water outlet of the water pump is connected to the tank cover provided on the top of the filter tank through a branch pipe. The inside of the filter tank is provided with a filter unit, and the middle part of the tank cover is connected to one end of the tank body outlet pipe, and the other end of the tank body outlet pipe extends to the inner bottom side of the anaerobic box, and the inside of the anaerobic box is provided with an anaerobic bed through a support rod.

[0004] The purification tank initially filters the urban raw water through the filter tank to prevent the larger impurities in the urban raw water from affecting the subsequent treatment process. However, after the filter tank performs the initial filtration of impurities, the impurities will gradually accumulate in the filter tank. If this accumulation phenomenon is not handled 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. As impurities continue to accumulate, the flow of the filter tank will also be restricted, and may even be blocked, causing the problem of poor flow of urban raw water. In addition, impurities that remain for a long time will not only reduce the service life of the filter, but may also become a breeding ground for bacteria, causing secondary pollution of urban raw water, affecting the subsequent purification process and the final water quality.

[0005] In practice, there are also technical solutions for the filtration mechanism to discharge filtered impurities to maintain filtration efficiency. However, the existing method of discharging impurities is generally to wait for the impurities to settle and then provide a discharge channel at the bottom. This method not only cannot automatically sense the timing of impurity discharge, but more importantly, when the impurities are discharged, they are often discharged together with a large amount of urban raw water, making it difficult to control the timely closure of the impurity discharge channel after the impurities are discharged. This leads to low efficiency of the primary filtration mechanism, and a large amount of urban raw water in the filtered impurities cannot be processed. Summary of the invention

[0006] In view of the problems of the prior art, a deep purification integrated urban water treatment device is provided, which preliminarily filters urban raw water through a primary filtering mechanism, and passes the preliminarily filtered urban raw water through an anaerobic treatment box, an aeration treatment box, a sterilization treatment box and an ultrafiltration treatment mechanism in sequence. When the primary filtering mechanism preliminarily filters the urban raw water, it can continuously discharge the filtered impurities to the outside through a sewage discharge component, thereby solving the problem that the existing urban raw water preliminary treatment device cannot continuously and stably discharge impurities and a large amount of urban raw 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, comprising a primary filtering mechanism, an anaerobic treatment box, an aeration treatment box, a sterilization treatment box and an ultrafiltration treatment mechanism connected in sequence, the primary filtering mechanism having 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 comprising three filter chambers connected in sequence, the 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 sieve holes capable of screening out impurities are arranged between adjacent filter chambers, a sewage discharge component for collecting impurities is also arranged in the filter chamber, a sewage discharge port is also arranged on the primary filtering mechanism, the sewage discharge port is used to discharge the impurities collected by the sewage discharge component to the outside, a collecting component is arranged on the outside of the primary filtering mechanism, all sewage discharge ports are connected to the collecting component, and the collecting component has a sewage discharge pipe extending to the outside of the primary filtering mechanism; an anaerobic bed is arranged in the anaerobic treatment box; an aeration pipe is arranged in the aeration treatment box; and a bactericide is placed in the sterilization treatment box.

[0008] Preferably, the ultrafiltration treatment mechanism includes an ultrafiltration component one and an ultrafiltration component two, both of which have a water inlet, a water production port and a concentrate water port. The water inlet of the ultrafiltration component one is provided with a water inlet solenoid valve one, the water inlet of the ultrafiltration component two is provided with a water inlet solenoid valve two, the concentrate water port of the ultrafiltration component one is provided with a concentrate water solenoid valve one, the concentrate water port of the ultrafiltration component two is provided with a concentrate water solenoid valve two, the water production ports of the ultrafiltration component one and the ultrafiltration component two 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 one and the water inlet solenoid valve two are connected with the sterilization treatment box through a pipeline.

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

[0010] Preferably, the primary filtering mechanism also includes a filter cartridge, the sewage outlet is annular and coaxially arranged on the filter cartridge, the sewage discharge component is arranged at the lowest end of the filter cavity, and the impurities in the filter cavity are collected by the sewage discharge component and discharged to the collection component through the sewage outlet.

[0011] Preferably, the primary filtering mechanism also includes a rotating shaft, a driving motor, a conical bucket, a conical cylinder and a connecting rod, the rotating shaft is coaxially rotatably arranged in the filter cylinder, the driving motor is arranged at the top of the filter cylinder, the output shaft of the driving motor is transmission-connected to the rotating shaft, the conical bucket is coaxially and equidistantly arranged on the rotating shaft, the outer diameter of the conical bucket gradually decreases from bottom to top, the diameter of the bottom end of the conical bucket 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 bucket and the inner circumferential wall of the filter cylinder, a coaxial cylindrical filter screen is arranged between the conical bucket and the conical cylinder of the upper part, the conical cylinder is coaxially and equidistantly arranged in the filter cylinder, the conical cylinder of the lower part is fixedly connected to the conical bucket by the connecting rod, the outer diameter of the conical bucket gradually decreases from top to bottom, and the bottom end of the inner cavity of the filter cylinder is provided with a water inlet pipe extending upward and rotatably connected to the conical bucket at the bottom, the outer edge of the conical cylinder 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.

[0012] Preferably, 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 circumferential wall of the connecting ring. 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 circumferential wall of the rotating cylinder, and filter holes are arranged on the spiral sheet. There are at least two arc-shaped lifting blocks, which are distributed circumferentially on the outside of the rotating cylinder, and the arc-shaped lifting blocks are coaxially slidably arranged on the top of the connecting ring. The top surface of the arc-shaped lifting block abuts against the top of the sewage outlet, and the inner circumferential wall of the arc-shaped lifting block is sealed with the outer circumferential wall of the rotating cylinder. The elastic element is arranged between the arc-shaped lifting block and the connecting ring.

[0013] Preferably, 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.

[0014] Preferably, a guide column extending downward is provided at the bottom end of the arc-shaped lifting block, and the guide column slides in the vertical direction to penetrate the connecting ring.

[0015] Preferably, the collecting assembly comprises a collecting cylinder coaxially arranged at the outer bottom of the filter cylinder, and a guide ring coaxially and equidistantly arranged 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.

[0016] A deep purification integrated urban water treatment method, using a deep purification integrated urban water treatment device for treatment, comprises the following steps:

[0017] 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;

[0018] 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.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

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

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

[0022] Complete water treatment process: The treatment units connected in sequence (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 every link.

[0023] Enhance water quality safety: Bactericides are placed in the sterilization treatment box to ensure that pathogenic microorganisms in the water are effectively eliminated, and the final water output is safe and hygienic.

[0024] Improve water purity: The ultrafiltration treatment mechanism uses a high-performance ultrafiltration membrane to further remove tiny suspended matter and dissolved matter in the water to ensure clear and transparent water.

[0025] The primary filtering mechanism provided by the present application rotates a spiral sheet with filter holes so that the raw water of the town is pressed downward by the spiral. During the process, impurities are constantly accumulated at the bottom of the spiral sheet, while the water without impurities passes through the filter holes of the spiral sheet. Therefore, the water without impurities exerts less downward pressure on the arc-shaped lifting block below, and the impurities accumulated at the bottom of the spiral sheet can form a larger downward pressure on the arc-shaped lifting block below after accumulating to a certain amount, thereby realizing the automatic discharge of impurities. When discharged to a certain extent, the downward pressure of the impurities on the arc-shaped lifting block below is rapidly weakened, thereby the arc-shaped lifting block below rises, and the impurity discharge channel is quickly closed. In this way, efficient impurity discharge can be achieved, the synchronous discharge of raw water in towns can be reduced, and the filtering efficiency of the primary filtering mechanism can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a stereoscopic image of a deep purification integrated urban water treatment device in the first perspective.

[0027] Figure 2 It is a stereoscopic image of a deep purification integrated urban water treatment device from a second viewing angle.

[0028] Figure 3It is a three-dimensional diagram of an ultrafiltration treatment mechanism in a deep purification integrated urban water treatment device.

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

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

[0031] Figure 6 yes Figure 5 A partial enlarged view of point A.

[0032] Figure 7 yes Figure 5 A partial enlarged view of the A when discharging impurities.

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

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

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

[0036] The numbers in the figure are: 1, primary filtering mechanism; 111, liquid inlet; 112, liquid outlet; 113, filter chamber; 114, sewage outlet; 1141, connecting ring; 1142, sealing cylinder; 12, filter screen hole; 13, sewage discharge assembly; 131, spiral sheet; 132, arc lifting block; 133, elastic element; 134, guide column; 14, collecting assembly; 141, collecting cylinder; 142, guide ring; 143, sewage outlet pipe; 15, filter cylinder; 151, water inlet pipe; 161, rotating shaft; 162. Drive motor; 163. Conical bucket; 164. Conical cylinder; 1641. Rotating cylinder; 165. Cylindrical filter; 2. Anaerobic treatment box; 3. Aeration treatment box; 4. Sterilization treatment box; 5. Ultrafiltration treatment mechanism; 51. Ultrafiltration component one; 52. Ultrafiltration component two; 53. Water inlet solenoid valve one; 54. Water inlet solenoid valve two; 55. Concentrated water solenoid valve one; 56. Concentrated water solenoid valve two; 57. Water production pipe; 571. Water production solenoid valve; 6. Pre-filter; 7. Pre-membrane pressure pump. DETAILED DESCRIPTION

[0037] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, this application provides:

[0039] A deep purification integrated urban water treatment device, characterized in that it comprises a primary filtering mechanism 1, an anaerobic treatment box 2, an aeration treatment box 3, a sterilization treatment box 4 and an ultrafiltration treatment mechanism 5 which are connected in sequence, the primary filtering mechanism 1 having a liquid inlet 111 for directly pumping urban raw water, and a liquid outlet 112 for pumping filtered liquid into the anaerobic treatment box 2, the primary filtering mechanism 1 comprising three filter chambers 113 which are connected in sequence, the urban raw water passes through all the filter chambers 113 in sequence from the liquid inlet 111 and then enters the anaerobic treatment box 2 through the liquid outlet 112, and the adjacent filter chambers 11 A filter sieve hole 12 capable of screening out impurities is arranged between 3, a sewage discharge component 13 for collecting impurities is also arranged in the filter cavity 113, a sewage outlet 114 is also arranged on the primary filtering mechanism 1, the sewage outlet 114 is used to discharge the impurities collected by the sewage discharge component 13 to the outside, a collecting component 14 is arranged on the outside of the primary filtering mechanism 1, all sewage outlets 114 are connected to the collecting component 14, and the collecting component 14 has a sewage pipe extending to the outside of the primary filtering mechanism 1; an anaerobic bed is arranged in the anaerobic treatment box 2; an aeration pipe is arranged in the aeration treatment box 3; and a bactericide is placed in the sterilization treatment box 4.

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

[0041] The primary filter mechanism 1 has a liquid inlet 111 for direct pumping of urban raw water, and a liquid outlet 112 for pumping the filtered liquid into the anaerobic treatment box 2, to ensure that the raw water can efficiently enter the treatment system. The primary filter mechanism 1 has a reasonable internal structure, including three filter chambers 113 that are connected in sequence. The urban raw water passes through all the filter chambers 113 in sequence through the liquid inlet 111, and after sufficient physical filtration, enters the anaerobic treatment box 2 through the liquid outlet. Between adjacent filter chambers 113, there is a filter mesh 12 that can screen out impurities to effectively intercept larger particulate matter and ensure the initial purification of water quality. In addition, a sewage discharge component 13 for collecting impurities is also provided in the filter chamber 113, which can discharge impurities generated during the filtration process in time and maintain the normal operation of the filter chamber 113. In order to facilitate maintenance and cleaning, a sewage discharge port 114 is also provided on the primary filter mechanism 1, which is specifically used to discharge impurities collected by the sewage discharge component 13 from the filter chamber 113 to reduce maintenance costs. A collecting assembly 14 is provided outside the primary filtering mechanism 1, and the sewage outlets 114 of all the filtering chambers 113 are connected to the collecting assembly 14. The collecting assembly 14 has a sewage pipe extending to the outside so as to discharge the collected impurities regularly to ensure the efficient operation of the system.

[0042] In the anaerobic treatment box 2, an anaerobic bacterial bed is set up to further decompose and remove organic pollutants in the water by the metabolism of anaerobic bacteria, thereby improving the water purification effect. Subsequently, in the aeration treatment box 3, an aeration pipe is set up to promote the reproduction and activity of aerobic microorganisms by delivering oxygen to the water, thereby effectively removing residual organic matter and ammonia nitrogen in the water and further improving the water quality. Finally, in the sterilization treatment box 4, a bactericide is added to ensure that the pathogenic microorganisms in the water are effectively eliminated, ensuring the safety and hygiene of the final effluent.

[0043] As the last step of the entire water treatment process, the ultrafiltration treatment mechanism 5 is responsible for further improving the quality of the effluent water to ensure that it meets or exceeds the relevant water quality standards to meet the needs of urban water use. The ultrafiltration treatment mechanism 5 is usually composed 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 to ensure that the effluent water is clear and transparent. By introducing the sterilized water into the ultrafiltration treatment mechanism 5, the filtration effect of the membrane can effectively remove tiny suspended matter and dissolved matter in the water during the process of the water flowing through the ultrafiltration membrane, further improving the purity of the water quality.

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

[0045] like Figure 2 and Figure 3As shown, the ultrafiltration treatment mechanism 5 includes an ultrafiltration component 1 51 and an ultrafiltration component 2 52, and the ultrafiltration component 1 51 and the ultrafiltration component 2 52 both have a water inlet, a water production port and a concentrated water port. The water inlet of the ultrafiltration component 1 51 is provided with a water inlet solenoid valve 1 53, the water inlet of the ultrafiltration component 2 52 is provided with a water inlet solenoid valve 2 54, the concentrated water port of the ultrafiltration component 1 51 is provided with a concentrated water solenoid valve 1 55, and the concentrated water port of the ultrafiltration component 2 52 is provided with a concentrated water solenoid valve 2 56. The water production ports of the ultrafiltration components 1 51 and 2 52 are connected and provided with a water production pipe 57, and the water production pipe 57 is provided with a water production solenoid valve 571. The water inlet solenoid valve 1 53 and the water inlet solenoid valve 2 54 are connected with the sterilization treatment box 4 through a pipeline.

[0046] The ultrafiltration membrane has a weak ability to treat water bodies with particularly high turbidity and accompanied by sediment, which can easily cause the membrane fibers to quickly clog and affect the water output. And it is difficult to clean it up with ordinary forward washing. Because for this kind of usage scenario, a dual ultrafiltration membrane process can be used. Through automatic control, on the basis of the original forward washing, the water output of a single ultrafiltration membrane is used to backwash the other ultrafiltration membrane, so that the ultrafiltration membrane can restore its filtration processing capacity to the greatest extent.

[0047] In the present application, when it is necessary to perform positive washing on the ultrafiltration component 1 51 and the ultrafiltration component 2 52, the water production solenoid valve 571 is closed, and the water inlet solenoid valve 1 53, the water inlet solenoid valve 2 54, the concentrated water solenoid valve 1 55, and the concentrated water solenoid valve 2 56 are opened, and flushing liquid is injected into the ultrafiltration component 1 51 and the ultrafiltration component 2 52 through the water inlet solenoid valve 1 53 and the water inlet solenoid valve 2 54, so that the flushing liquid flows out from the concentrated water solenoid valve 1 55 and the concentrated water solenoid valve 2 56 at a high flow rate, thereby flushing the membrane surface at high speed and reducing the enrichment of pollutants on the membrane surface.

[0048] When it is necessary to backwash the ultrafiltration component 2 52, close the water production solenoid valve 571, the water inlet solenoid valve 2 54 and the concentrated water solenoid valve 1 55, open the water inlet solenoid valve 1 53 and the concentrated water solenoid valve 2 56, and pump the flushing liquid into the ultrafiltration component 1 51 through the water inlet solenoid valve 1 53. The flushing liquid enters the ultrafiltration fiber from the clear liquid side of the ultrafiltration component 2 52 and flows through the membrane to the concentrated water side. The pollutants in the membrane pores and the surface of the hollow fiber membrane are flushed away by the large flow of backwash water, and the flushed pollutants are discharged through the concentrated water solenoid valve 2 56.

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

[0050] A pre-filter 6 and a pre-membrane pressure pump 7 are provided on the connection pipeline between the sterilization treatment box 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 sterilized water to remove the larger particles and suspended matter that may remain. This process helps to protect the ultrafiltration membrane from contamination and avoid clogging of the membrane, thereby extending the service life of the ultrafiltration membrane and improving its filtration performance.

[0051] The introduction of the pre-membrane booster pump 7 is to ensure that the water 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 tiny particles, colloids and pathogenic microorganisms in the water. The booster pump can also overcome the pressure loss in the pipeline system and ensure the stable operation of the treatment system.

[0052] like Figure 4 and Figure 5 As shown, the primary filtering mechanism 1 also includes a filter cartridge 15, a sewage outlet 114 is annular and coaxially arranged on the filter cartridge 15, and a sewage outlet component 13 is arranged at the lowest end of the filter cavity 113. Impurities in the filter cavity 113 are collected by the sewage outlet component 13 and discharged to the collection component 14 through the sewage outlet 114.

[0053] The filter cartridge 15 has an annular coaxial sewage outlet 114, so that the water flow can be more evenly distributed and efficiently filtered in the process of passing through the filter cartridge 15. This annular design not only optimizes the flow path of the water flow, but also ensures that impurities in the water can be effectively captured and removed, minimizing the occurrence of filtering dead corners.

[0054] The sewage outlet 114 is located on the filter cartridge 15 and closely cooperates with the sewage discharge assembly 13 to form an efficient sewage collection system. The sewage discharge assembly 13 is arranged at the lowest end of the filter cavity 113 to ensure that the impurities accumulated in the filter cavity 113 can be quickly and effectively collected. Through the sewage discharge assembly 13, the impurities precipitated in the filter cavity 113 are captured in time, avoiding the problem of re-contamination caused by them during the filtering process.

[0055] After the filtered water collects the impurities in the sewage discharge assembly 13, it is smoothly discharged to the collection assembly 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 the impurities can be discharged efficiently, the cleaning frequency of the filter cartridge 15 can be reduced, further improving the operating efficiency and service life of the equipment.

[0056] like Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the primary filtering mechanism 1 also includes a rotating shaft 161, a driving motor 162, a conical bucket 163, a conical barrel 164 and a connecting rod. The rotating shaft 161 is coaxially rotatably arranged in the filter barrel 15, the driving motor 162 is arranged at the top of the filter barrel 15, and the output shaft of the driving motor 162 is transmission-connected with the rotating shaft 161. The conical bucket 163 is coaxially and evenly spacedly arranged on the rotating shaft 161. The outer diameter of the conical bucket 163 gradually decreases from bottom to top. The diameter of the bottom end of the conical bucket 163 is smaller than the inner diameter of the filter barrel 15. A water passage is formed between the outer edge of the bottom end of the conical bucket 163 and the inner peripheral wall of the filter barrel 15. The upper part A coaxial cylindrical filter screen 165 is arranged between the conical bucket 163 and the conical cylinder 164. The conical cylinder 164 is coaxially and equidistantly arranged in the filter cylinder 15. The lower part of the conical cylinder 164 is fixedly connected to the conical bucket 163 by a connecting rod. The outer diameter of the conical bucket 163 gradually decreases from top to bottom. The bottom end of the inner cavity of the filter cylinder 15 is provided with a water inlet pipe 151 extending upward and rotatably connected to the bottom conical bucket 163. The outer edge of the conical cylinder 164 is close to the sewage outlet 114 and is connected to the collecting assembly 14. The aperture of the cylindrical filter screen 165 at the top of the topmost conical bucket 163 is smaller than the aperture of the cylindrical filter screen 165 at its bottom.

[0057] By setting the conical bucket 163 and the conical cylinder 164 at equal intervals, the flow path of urban raw water can be effectively increased, thereby improving the filtering effect. The rotating shaft 161 is coaxially rotatably arranged in the filter cylinder 15, and the driving motor 162 is located at the top of the filter cylinder 15. Its output shaft is connected to the rotating shaft 161 through transmission, forming a stable and efficient driving system. The driving mechanism designed in this way not only simplifies the process of power transmission, but also ensures the smooth operation of the filtering process.

[0058] The conical buckets 163 are coaxially and evenly spaced 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 bucket 163 is smaller than the inner diameter of the filter cartridge 15. This design ensures that the water can pass smoothly, while forming an effective water passage, promoting the continuity and uniformity of the water flow. The top and bottom ends of the conical bucket 163 are both provided with coaxial cylindrical filter screens 165, which can effectively intercept fine impurities in the water, thereby further improving the filtration efficiency.

[0059] The conical cylinders 164 are coaxially and evenly spaced in the filter cylinder 15, and their structural design is intended to enhance the distribution effect of the water flow. The top conical cylinder 164 is fixedly connected to the cylindrical filter screen 165 at the top of the conical bucket 163, the middle conical cylinder 164 is connected to the cylindrical filter screen 165 at the bottom of the conical bucket 163, and the bottom conical cylinder 164 is fixedly connected to the bottom conical bucket 163 through a connecting rod. This connection method ensures that the water flow can maintain good fluidity and filtering effect when passing through different filtering stages.

[0060] The diameter of the bottom and middle conical bucket 163 gradually decreases from top to bottom. This design not only enhances the concentration effect of water flow, but also improves the deposition efficiency of impurities during the filtration process. The bottom end of the inner cavity of the filter cartridge 15 is provided with a water inlet pipe 151 extending upward and rotatably connected to the bottom conical bucket 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 connected to the collection assembly 14. This design allows impurities to be quickly collected and discharged during the filtration process, reducing the risk of re-contamination. The aperture of the cylindrical filter screen 165 at the top of the top conical bucket 163 is smaller than the aperture of the cylindrical filter screen 165 at the bottom. This design effectively prevents larger particles from entering the high-position filter chamber 113, thereby collecting impurities of different particle sizes through different filter chambers 113, avoiding the filter holes from being blocked during the initial filtration, thereby ensuring the high efficiency of the filtration process and the purity of the water quality.

[0062] like Figure 6 and Figure 7 As shown, the outer edge of the conical cylinder 164 extends downward to form a rotating cylinder 1641, the bottom end of the sewage outlet 114 is provided with a connecting ring 1141 extending inward, and the inner peripheral wall of the connecting ring 1141 is provided with a sealing cylinder 1142 extending upward, and the sealing cylinder 1142 is sealed and rotatably connected with the rotating cylinder 1641. The sewage discharge assembly 13 includes a spiral piece 131, an arc-shaped lifting block 132 and an elastic element 133, and the spiral piece 131 is coaxially fixedly arranged on the upper part of the outer peripheral wall of the rotating cylinder 1641. , filter holes are provided on the spiral sheet 131, there are at least two arc-shaped lifting blocks 132, the arc-shaped lifting blocks 132 are distributed circumferentially 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, the inner circumferential wall of the arc-shaped lifting block 132 is sealed with the outer circumferential wall of the rotating cylinder 1641, and 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 cylinder 164 extends downward to form a rotating cylinder 1641. This design not only enhances the stability of the structure, but also provides a more flexible operating space for the subsequent sewage discharge process. At the bottom of the sewage outlet 114, a connecting ring 1141 extending inward is provided, and a sealing cylinder 1142 extending upward is provided on the inner circumference of the connecting ring 1141. The sealing cylinder 1142 and the rotating cylinder 1641 adopt a sealed rotating connection design to ensure the sealing during the sewage discharge process, prevent the leakage of urban raw water, and improve 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 blades 131 can squeeze 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 discharge port 114, and the impurities can be discharged outward from the sewage discharge gap.

[0066] The multiple arc-shaped lifting blocks 132 can open the sewage gap when there are more impurities in a part of the sewage channel, thereby avoiding the overflow of urban raw water caused by opening the sewage gap in other places and less impurities.

[0067] The spiral blade 131 is provided with filter holes so that the rotating spiral blade 131 can reciprocate and squeeze the impurities downward, so that the impurities are dehydrated and discharged outward from the sewage discharge gap, while water can pass smoothly, further enhancing the filtering effect.

[0068] The primary filtering mechanism in the present application adopts multiple filter chambers 113, which can effectively collect impurities of different particle sizes. Through this design, urban raw water can be diverted and moved forward in the smaller filter chamber 113, making full use of the power of the water flow to make impurities more easily gathered at the top of the annular sewage channel. This process greatly improves the separation efficiency of impurities.

[0069] Compared with the urban raw water pre-treatment device in the prior art, the latter usually filters impurities through a single filter screen and directly discharges the impurities through a sewage pipe. The primary filtering mechanism 1 of the present application adopts a solution of impurity filtering and baffle collection, which significantly improves the pre-treatment effect of urban raw water. Due to its smaller size and more compact design, it is more suitable for integrated urban water treatment devices, which can effectively save space and improve treatment efficiency.

[0070] like Figure 5 As shown, the top of the arc-shaped lifting block 132 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 132 extends to the outside of the sewage outlet 114.

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

[0072] like Figure 6As shown, a guide column 134 extending downward is provided at the bottom end of the arc-shaped lifting block 132 , and the guide column 134 slides along the vertical direction to penetrate the connecting ring 1141 .

[0073] The guide column 134 enables the arc-shaped lifting block 132 to be stably lifted and lowered in the longitudinal direction, and the arc-shaped lifting block 132 is guided and positioned to improve the stability of the structure.

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

[0075] The impurities discharged through the sewage outlet 114 fall on the top of the guide ring 142. Under the action of the inclined surface at the top of the guide ring 142, the impurities fall on the bottom of the inner cavity of the collecting tube 141. The bottom of the inner cavity of the collecting tube 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 discharged outward through the sewage outlet.

[0076] The main creative contribution of this application is to provide a primary filtering mechanism 1. Although there are technical solutions in the existing practice that the filtering mechanism discharges filtered impurities to maintain filtering efficiency, the existing method of discharging impurities is generally to wait for the impurities to settle and then provide a discharge channel at the bottom. This method not only cannot realize the automatic perception of the timing of impurity discharge, but more importantly, when the impurities are discharged, they are often discharged together with a large amount of urban raw water, making it difficult to control the timely closure of the impurity discharge channel after the impurities are discharged. This leads to the low efficiency of the primary filtering mechanism 1, and a large amount of urban raw water in the filtered impurities cannot be processed.

[0077] The primary filtering mechanism 1 provided by the present application rotates a spiral sheet 131 with filter holes, so that the town raw water is spirally pressed down. During the process, impurities are constantly accumulated at the bottom of the spiral sheet 131, while the water without impurities passes through the filter holes of the spiral sheet 131. Therefore, the water without impurities exerts less downward pressure on the arc-shaped lifting block 132 below, and the impurities accumulated at the bottom of the spiral sheet 131 can form a larger downward pressure on the arc-shaped lifting block 132 below after accumulating to a certain amount, thereby realizing the automatic discharge of impurities. When discharged to a certain extent, the downward pressure of the impurities on the arc-shaped lifting block 132 below is rapidly weakened, so that the arc-shaped lifting block 132 below rises, and the impurity discharge channel is quickly closed. Thereby, efficient impurity discharge can be achieved, and the synchronous discharge of town raw water can be reduced. The filtering efficiency of the primary filtering mechanism is improved.

[0078] A deep purification integrated urban water treatment method, using a deep purification integrated urban water treatment device for treatment, comprises the following steps:

[0079] Step 1: pumping urban raw water into the primary filtering mechanism 1 through the liquid inlet 111, filtering out impurities in the urban raw water and discharging the filtered impurities;

[0080] Step 2, guiding the water preliminarily filtered by the primary filtering mechanism 1 to pass through the anaerobic treatment box 2, the aeration treatment box 3, the sterilization treatment box 4 and the ultrafiltration treatment mechanism 5 in sequence, and sequentially subjecting the preliminarily filtered urban raw water to anaerobic, aeration, sterilization and ultrafiltration treatment.

[0081] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A deep purification integrated urban water treatment device, characterized in that: The invention comprises a primary filtering mechanism (1), an anaerobic treatment box (2), an aeration treatment box (3), a sterilization treatment box (4) and an ultrafiltration treatment mechanism (5) which are connected in sequence. The primary filtering mechanism (1) has a liquid inlet (111) for directly pumping urban raw water, and a liquid outlet (112) for pumping filtered liquid into the anaerobic treatment box (2). The primary filtering mechanism (1) comprises three filter chambers (113) which are connected in sequence. The urban raw water passes through all the filter chambers (113) in sequence from the liquid inlet (111) and then enters the anaerobic treatment box (2) through the liquid outlet (112). A filter chamber (113) is provided between adjacent filter chambers (113) to filter out impurities. The primary filtering mechanism (1) has a filter sieve hole (12) with a high quality, a sewage discharge component (13) for collecting impurities is also arranged in the filtering cavity (113), a sewage discharge port (114) is also arranged on the primary filtering mechanism (1), the sewage discharge port (114) is used to discharge the impurities collected by the sewage discharge component (13) to the outside, a collecting component (14) is arranged on the outside of the primary filtering mechanism (1), all sewage discharge ports (114) are connected to the collecting component (14), and the collecting component (14) has a sewage discharge pipe extending to the outside of the primary filtering mechanism (1); an anaerobic bacterial bed is arranged in the anaerobic treatment box (2); an aeration pipe is arranged in the aeration treatment box (3); and a bactericide is placed in the sterilization treatment box (4).

2. A deep purification integrated urban water treatment device according to claim 1, characterized in that: The ultrafiltration treatment mechanism (5) comprises an ultrafiltration component 1 (51) and an ultrafiltration component 2 (52). The ultrafiltration component 1 (51) and the ultrafiltration component 2 (52) both have a water inlet, a water production port and a concentrated water port. The water inlet of the ultrafiltration component 1 (51) is provided with a water inlet solenoid valve 1 (53), the water inlet of the ultrafiltration component 2 (52) is provided with a water inlet solenoid valve 2 (54), the concentrated water port of the ultrafiltration component 1 (51) is provided with a concentrated water solenoid valve 1 (55), the concentrated water port of the ultrafiltration component 2 (52) is provided with a concentrated water solenoid valve 2 (56), the water production ports of the ultrafiltration component 1 (51) and the ultrafiltration component 2 (52) are connected and provided with a water production pipe (57), the water production pipe (57) is provided with a water production solenoid valve (571), and the water inlet solenoid valve 1 (53) and the water inlet solenoid valve 2 (54) are connected to the sterilization treatment box (4) through a pipeline.

3. A deep purification integrated urban water treatment device according to claim 1, characterized in that: A pre-filter (6) and a pre-membrane pressure pump (7) are arranged on the connection pipeline between the sterilization treatment box (4) and the ultrafiltration treatment mechanism (5).

4. A deep purification integrated urban water treatment device according to any one of claims 1 to 3, characterized in that: The primary filtering mechanism (1) also includes a filter cartridge (15); a sewage outlet (114) is annular and coaxially arranged on the filter cartridge (15); a sewage outlet component (13) is arranged at the lowest end of the filter chamber (113); impurities in the filter chamber (113) are collected by the sewage outlet component (13) and discharged to the collection component (14) through the sewage outlet (114).

5. A deep purification integrated urban water treatment device according to claim 4, characterized in that: The primary filtering mechanism (1) further comprises a rotating shaft (161), a driving motor (162), a conical bucket (163), a conical barrel (164) and a connecting rod. The rotating shaft (161) is coaxially rotatably arranged in the filter barrel (15). The driving motor (162) is arranged at the top of the filter barrel (15). The output shaft of the driving motor (162) is transmission-connected to the rotating shaft (161). The conical bucket (163) is coaxially equidistantly arranged on the rotating shaft (161). The outer diameter of the conical bucket (163) gradually decreases from bottom to top. The diameter of the bottom end of the conical bucket (163) is smaller than the inner diameter of the filter barrel (15). A water passage is formed between the outer edge of the bottom end of the conical bucket (163) and the inner peripheral wall of the filter barrel (15). A coaxial cylindrical filter screen (165) is arranged between the conical bucket (163) and the conical cylinder (164); the conical cylinder (164) is coaxially arranged in the filter cylinder (15) at equal intervals; the conical cylinder (164) at the lower part is fixedly connected to the conical bucket (163) via a connecting rod; the outer diameter of the conical bucket (163) gradually decreases from top to bottom; a water inlet pipe (151) extending upward and rotatably connected to the conical bucket (163) at the bottom end 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 screen (165) at the top end of the topmost conical bucket (163) is smaller than the aperture of the cylindrical filter screen (165) at the bottom end thereof.

6. A deep purification integrated urban water treatment device according to claim 5, characterized in that: The outer edge of the conical cylinder (164) extends downward to form a rotating cylinder (1641); the bottom end of the sewage outlet (114) is provided with a connecting ring (1141) extending inward; the inner peripheral wall of the connecting ring (1141) is provided with a sealing cylinder (1142) extending upward; the sealing cylinder (1142) and the rotating cylinder (1641) are sealed and rotatably connected; the sewage discharge assembly (13) comprises a spiral sheet (131), an arc-shaped lifting block (132) and an elastic element (133); the spiral sheet (131) is coaxially fixedly arranged on the upper part of the outer peripheral wall of the rotating cylinder (1641) , a filter hole is provided on the spiral sheet (131), there are at least two arc-shaped lifting blocks (132), the arc-shaped lifting blocks (132) are distributed along the circumferential direction on the outer side 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 blocks (132) abuts against the top of the sewage outlet (114), the inner circumferential wall of the arc-shaped lifting blocks (132) and the outer circumferential wall of the rotating cylinder (1641) are sealed, and the elastic element (133) is arranged between the arc-shaped lifting blocks (132) and the connecting ring (1141).

7. A deep purification integrated urban water treatment device according to claim 6, characterized in that: 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).

8. A deep purification integrated urban water treatment device according to claim 6 or 7, characterized in that: A guide column (134) extending downward is arranged at the bottom end of the arc-shaped lifting block (132), and the guide column (134) slides in the vertical direction and penetrates the connecting ring (1141).

9. A deep purification integrated urban water treatment device according to any one of claims 5 to 7, characterized in that: The collecting assembly (14) comprises a collecting cylinder (141) coaxially arranged at the outer bottom of the filter cylinder (15), and a guide ring (142) coaxially arranged at equal intervals on the outer peripheral wall of the collecting cylinder (141), wherein the guide ring (142) is located at the bottom end of the sewage outlet (114), and the bottom surface of the inner cavity of the collecting cylinder (141) is inclined and a sewage outlet pipe (143) is arranged at the lowest end.

10. A deep purification integrated urban water treatment method, characterized in that: The treatment is carried out using a deep purification integrated urban water treatment device as described in claims 1-3, 5-7, comprising the following steps: Step 1, pumping urban raw water into the primary filtering mechanism (1) through the liquid inlet (111), filtering out impurities in the urban raw water and discharging the filtered impurities; Step 2: guiding the water initially filtered by the primary filtering mechanism (1) to pass through the anaerobic treatment box (2), the aeration treatment box (3), the sterilization treatment box (4) and the ultrafiltration treatment mechanism (5) in sequence, and sequentially subjecting the initially filtered urban raw water to anaerobic, aeration, sterilization and ultrafiltration treatment.

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