A sewage treatment equipment

Abstract

The present invention relates to the technical field of sewage treatment, and specifically discloses a sewage treatment device. The present invention comprises: a sewage tank, a reaction tank, a pressurizing tank, a clear water tank, and a return water tank connected to the clear water tank, which are sequentially arranged along the flow direction of sewage; a liquid inlet is provided on one side of the bottom of the sewage tank; a sewage outlet is provided at the bottom of the sewage tank, which is connected to the return water tank; a liquid outlet is provided at the top of the sewage tank, which is connected to the reaction tank; a coarse filter is provided at the liquid outlet end of the liquid inlet, and the top end of the coarse filter is rotatably mounted inside the sewage tank; the present invention can filter large particles of impurities through the coarse filter, and automatically clean the coarse filter to prevent clogging of the coarse filter.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to sewage treatment equipment. Background Art

[0002] Medical wastewater treatment equipment is specifically designed for treating wastewater in medical facilities. It integrates a variety of advanced treatment units, including solid-liquid separation, disinfection, and biodegradation. It boasts a compact structure, a small footprint, and a high degree of intelligence, making it a highly efficient and environmentally friendly treatment device. It can treat wastewater on-site within medical facilities and discharge it locally once it meets standards, significantly reducing the cost and potential risks of laying wastewater pipelines. Compared to traditional, simplified medical wastewater treatment methods, this equipment exhibits significant improvements in treatment efficiency, stable and reliable effluent quality, and convenient and efficient operation and maintenance. It effectively ensures the safety and compliance of medical wastewater treatment, providing solid support for the health and stability of the medical environment and surrounding ecosystems.

[0003] Utility model application number 201621247899.8 discloses an improved coal mine wastewater treatment device, comprising a water inlet pipe, a multi-media filter, a dosing box, a safety filter, a reverse osmosis device, and a water outlet pipe, all sealed and connected in sequence. The multi-media filter comprises a tank body, the top of which is provided with a water inlet and an exhaust port, respectively. A screen is provided at the bottom of the tank body, above which are at least two layers of filter media. The bottom of the tank body is provided with a water outlet. The water inlet pipe is connected to the water inlet of the multi-media filter, and a water pump is provided between the water inlet pipe and the water inlet. A pH meter is provided at the water outlet. The multi-media filter is also directly connected to the safety filter. A valve a is provided between the multi-media filter and the dosing box, and a valve b is provided between the multi-media filter and the safety filter. This utility model has a simple structure, greatly improves water treatment capacity, and can provide graded treatment of mine wastewater with different pH levels, thereby improving efficiency.

[0004] However, this patent requires personnel to manually clean the sediment, which increases the burden on the staff.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the Invention

[0006] The purpose of the present invention is to provide a sewage treatment device that can effectively solve the above technical problems.

[0007] In order to achieve the purpose of the present invention, the following technical solutions are adopted:

[0008] A sewage treatment device, comprising: a sewage tank, a reaction tank, a pressure tank, a clear water tank, and a return water tank connected to the clear water tank, which are sequentially arranged along the flow direction of sewage;

[0009] A liquid inlet is provided on one side of the bottom of the sewage pool; a sewage outlet is provided at the bottom of the sewage pool, and the sewage outlet is connected to the return water pool; a liquid outlet is provided on the top of the sewage pool, and the liquid outlet is connected to the reaction pool;

[0010] The liquid outlet end of the liquid inlet is provided with a coarse filter, and the top end of the coarse filter is rotatably installed inside the sewage tank;

[0011] A stirring assembly for mixing sewage and chemicals is provided at the bottom of the sewage pool; the stirring assembly comprises: a motor, a stirring shaft connected to the output end of the motor, a stirring blade mounted on the stirring shaft, and a cam coaxially connected to the stirring shaft;

[0012] A first cleaning member for cleaning the coarse filter is slidably installed in the sewage pool, and one end of the first cleaning member abuts against the cam.

[0013] Furthermore, the first cleaning member includes: a cleaning brush, a first hinged rod hinged to the brush handle of the cleaning brush, a sliding rod hinged to the other end of the first hinged rod, and the sliding rod abuts against the cam.

[0014] Furthermore, a sewage outlet is provided at the bottom end of the sewage pool, a sewage baffle is hinged on the sewage outlet, a second hinged rod is hinged on the sewage baffle, and the second hinged rod is hinged to the frame of the coarse filter.

[0015] Furthermore, a one-way clutch is installed between the cam and the stirring shaft.

[0016] Furthermore, the stirring blade is threadedly connected to the stirring shaft, and limit blocks are respectively installed at both ends of the thread.

[0017] Furthermore, a fine filter is installed horizontally in the sewage pool;

[0018] The stirring shaft is also provided with a swing component that drives the fine filter to swing. The swing component includes: a driving bevel gear coaxially connected to the stirring shaft, a driven bevel gear transmission-connected to the driving bevel gear, and a shaking piece coaxially connected to the driven bevel gear.

[0019] Furthermore, it also includes: a cleaning component for cleaning the fine filter, the cleaning component includes: the driven bevel gear is also coaxially connected to the driving gear, the driving gear is connected to the first driven gear and the second driven gear through a chain transmission; the first driven gear and the second driven gear are respectively located on both sides of the driving gear, and the chain is connected to a second cleaning member.

[0020] Furthermore, the cleaning components are divided into two groups and are symmetrically arranged on both sides of the stirring shaft.

[0021] Furthermore, a reflux chamber is provided on one side of the sewage pool; the inlet and outlet of the reflux chamber are respectively connected to the upper and lower sides of the sewage pool; a second filter is provided in the reflux chamber;

[0022] The inlet of the reflow chamber is hinged with an inlet baffle, and a sensor is installed on one side of the inlet baffle.

[0023] When the second cleaning member triggers the sensor, the feed damper opens.

[0024] Furthermore, a dosing port is provided on one side of the liquid inlet, the dosing port is connected to a dosing device, and the dosing device is provided on the sewage pool.

[0025] Compared with the prior art, the present invention has the following beneficial effects: the present invention can filter large particles of impurities through the coarse filter and automatically clean the coarse filter to avoid clogging of the coarse filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0027] Figure 1 This is a structural schematic diagram of a sewage treatment device according to the present invention;

[0028] Figure 2 This is a schematic diagram of the internal structure of a sewage treatment device according to the present invention;

[0029] Figure 3 This is a schematic structural diagram of a first cleaning component of a sewage treatment device according to the present invention;

[0030] Figure 4 This is a structural schematic diagram of a swing assembly of a sewage treatment equipment according to the present invention;

[0031] Figure 5 A schematic diagram of a swing assembly of a sewage treatment device according to the present invention;

[0032] Figure 6 A schematic diagram of a reflux chamber of a sewage treatment device according to the present invention;

[0033] Figure 7 A schematic diagram of a second cleaning component of a sewage treatment device according to the present invention;

[0034] Figure 8 This is a schematic structural diagram of a cleaning component of a sewage treatment equipment according to the present invention;

[0035] Figure 9This is a schematic diagram of the internal structure of a sewage pool of sewage treatment equipment of the present invention.

[0036] In the figure: 1, sewage tank; 2, reaction tank; 3, pressurized tank; 4, clean water tank; 5, return water tank; 11, liquid inlet; 18, coarse filter; 14, stirring assembly; 141, motor; 142, stirring shaft; 143, stirring blade; 144, cam; 145, first cleaning member; 1451, cleaning brush; 1452, first hinged rod; 1453, sliding rod; 121, sewage baffle; 122, second hinged rod; 142 1. Limit block; 15. Fine filter; 16. Swing assembly; 161. Driving bevel gear; 162. Driven bevel gear; 163. Rocking member; 164. Cleaning assembly; 1641. Driving gear; 1642. Chain; 1643. First driven gear; 1644. Second driven gear; 1645. Second cleaning member; 16451. Rotating section; 17. Reflux chamber; 171. Second filter; 172. Feed baffle. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.

[0038] In the description of the present invention, it should be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0039] like Figures 1 to 9 As shown, the sewage treatment equipment of the present invention comprises: a sewage tank 1, a reaction tank 2, a pressurizing tank 3, a clear water tank 4, and a return water tank 5 connected to the clear water tank 4, which are sequentially arranged along the flow direction of the sewage;

[0040] Sewage pool 1 receives sewage and adds disinfectant to the sewage to disinfect it; a layer of biofilm grows on the surface of the filler of reaction pool 2. The microorganisms in the biofilm remove pollutants in domestic sewage through adsorption, decomposition and other actions. An aerator is installed at the bottom of reaction pool 2 to add oxygen to the sewage so that the microorganisms can fully utilize the oxygen for metabolism.

[0041] Medical wastewater contains a large number of bacteria, viruses and other pathogens. If not disinfected, these pathogens will enter the environment with the wastewater and pollute water sources, soil, etc., and will be transmitted through the food chain to harm the ecosystem and cause public health incidents; it will increase the risk of cross-infection within the hospital, threatening the health of medical staff and patients, especially those with low immunity.

[0042] A liquid inlet 11 is provided on one side of the bottom of the sewage tank 1 for receiving sewage. In the prior art, a water pump is usually used to pump sewage into the liquid inlet 11; a sewage outlet is provided at the bottom of the sewage tank 1, which is connected to the return water tank 5 and is used to discharge the filtered large particles of impurities into the return water tank 5; a liquid outlet is provided on the top of the sewage tank 1, which is connected to the reaction tank 2 and is used to discharge the filtered sewage from the liquid outlet into the reaction tank 2; wherein the return water tank 5 consists of a reflux part and a sewage discharge part, and the reflux part and the sewage discharge part can be separated by a partition, wherein the sewage discharge part is connected to the sewage outlet.

[0043] A coarse filter 18 is provided at the liquid outlet end of the liquid inlet 11 of the sewage pool 1 for filtering large particles of impurities in the sewage. The top of the coarse filter 18 is rotatably installed inside the sewage pool 1 and is arranged at an angle. The sewage flows into the sewage pool 1 from the right and is filtered through the coarse filter 18. The inclined design combined with the direction of water flow helps to guide impurities to the lower left of the filter, reduce the retention and accumulation of impurities on the surface of the filter, and facilitate the centralized collection of impurities.

[0044] A stirring assembly 14 for mixing sewage and chemicals is provided at the bottom of the sewage pool 1; the stirring assembly 14 includes: a motor 141, a stirring shaft 142 transmission-connected to the output end of the motor 141, a stirring blade 143 mounted on the stirring shaft 142, and a cam 144 coaxially connected to the stirring shaft 142; a first cleaning member 145 for cleaning the coarse filter 18 is slidably mounted in the sewage pool 1, and one end of the first cleaning member 145 abuts against the cam 144, which is used to drive the first cleaning member 145 to slide through the cam 144, thereby driving the coarse filter 18 to shake on the one hand, and cleaning the coarse filter 18 through the first cleaning member 145 on the other hand.

[0045] The first cleaning member 145 includes: a cleaning brush 1451, which consists of a brush body, bristles installed on the cleaning side of the brush body, and a brush handle installed on the non-cleaning side of the brush body; a first hinged rod 1452 hinged to the brush handle of the cleaning brush 1451, and a sliding rod 1453 hinged to the other end of the first hinged rod 1452, the sliding rod 1453 abuts against the cam 144, and when the cam 144 rotates, it abuts against the sliding rod 1453, thereby driving the cleaning brush 1451 to clean the coarse filter 18; wherein, the sliding rod 1453 is also connected to a spring, which is used to drive the sliding rod 1453 to reset when the cam 144 is separated from the sliding rod 1453, and then drive the cleaning brush 1451 to reset; sliders are fixedly installed on both sides of the brush body, and the sliders are slidably connected to the side walls of the sewage tank 1, so that the brush body can slide along the sewage tank 1.

[0046] It can be seen from the above description that the present application can, while the stirring blade 143 stirs the sewage and the reagent, drive the coarse filter 18 to shake and clean the coarse filter 18 through the cleaning brush 1451 .

[0047] Preferably, a one-way clutch is installed between the cam 144 and the stirring shaft 142. The one-way clutch is used to separate the stirring and cleaning actions. When the motor 141 drives the stirring blade 143 to stir, the cam 144 does not rotate with the stirring shaft 142 due to the action of the one-way clutch, thereby avoiding continuous cleaning of the coarse filter 18, resulting in a shortened service life of the coarse filter 18; in actual use, the cam 144 may rotate slightly following the stirring shaft 142, but when it rotates to abut against the sliding rod 1453, it will be difficult to rotate, so this effect can be ignored.

[0048] Preferably, a sewage outlet is provided at the bottom of the sewage pool 1, and a sewage baffle 121 is hinged on the sewage outlet, and the sewage baffle 121 is hinged with a second hinged rod 122, and the second hinged rod 122 is hinged to the frame of the coarse filter 18. When the cam 144 drives the cleaning brush 1451 to clean the coarse filter 18, the cleaning brush 1451 squeezes the coarse filter 18, causing the coarse filter 18 to swing intermittently. The intermittent swing of the coarse filter 18 drives the sewage baffle 121 to open. At this time, impurities accumulated on the filter side of the coarse filter 18 are intermittently discharged from the sewage outlet.

[0049] During the sewage treatment process, the coarse filter 18 in the sewage pool 1 will continuously intercept various impurities. If these impurities are constantly accumulated on the filtering side of the coarse filter 18, they will gradually clog the pores of the coarse filter 18, causing the filtration efficiency of the coarse filter 18 to be greatly reduced, resulting in a reduction in the flow of sewage through the coarse filter 18, and may even hinder the workflow of the entire sewage pool 1; when the coarse filter 18 is blocked, the intermittent swing of the coarse filter 18 prompts the sewage discharge baffle 121 to open, allowing impurities to be discharged intermittently, which can effectively avoid excessive accumulation of impurities and ensure that the filtering function of the coarse filter 18 is always in good condition.

[0050] Preferably, the stirring blade 143 is threadedly connected to the stirring shaft 142, and a limit block 1421 is respectively installed at both ends of the thread. Through the threaded connection and the limit block 1421, when the stirring shaft 142 rotates, the stirring blade 143 moves upward or downward along the axial direction of the stirring shaft 142, and when the stirring shaft 142 rotates in the opposite direction, the stirring blade 143 moves in the opposite direction of the stirring shaft 142; the stirring blade 143 can move up and down along the axial direction and stir at different positions respectively; wherein, when stirring in the reverse direction, the speed of the motor 141 can be appropriately reduced, forward rotation accelerates the mixing of materials, reverse rotation slows down the fine mixing, and drives the first cleaning member 145 to move.

[0051] Preferably, a fine filter 15 is also installed horizontally in the sewage pool 1 for re-filtering the sewage filtered by the coarse filter 18, wherein three fine filters 15 are arranged at intervals from bottom to top for processing different impurities in stages.

[0052] The stirring shaft 142 is also provided with a swinging assembly 16 for driving the fine filter 15 to swing. The swinging assembly 16 includes: a driving bevel gear 161 coaxially connected to the stirring shaft 142, a driven bevel gear 162 transmission-connected to the driving bevel gear 161, and a shaking member 163 coaxially connected to the driven bevel gear 162; the shaking member 163 is directly in contact with the filter, or is connected to the fine filter 15 through a connecting rope, and is used to drive the fine filter 15 to shake through the shaking member 163, thereby reducing the possibility of impurities adhering to the fine filter 15. At the same time, the rotation of the shaking member 163 can also stir the sewage horizontally, thereby improving the reaction efficiency of the agent.

[0053] Preferably, it also includes: a cleaning component 164 for cleaning the fine filter 15, and the cleaning component 164 includes: the driven bevel gear 162 is also coaxially connected to the driving gear 1641, and the driving gear 1641 is connected to the first driven gear 1643 and the second driven gear 1644 through the chain 1642; the first driven gear 1643 and the second driven gear 1644 are respectively located on both sides of the driving gear 1641, and the chain 1642 is connected to the second cleaning member 1645; the second cleaning member 1645 is a brush or a brush roller; a protective shell is provided on the outside of the chain 1642 for protecting the first driven gear 1643, the second driven gear 1644 and the chain 1642, and the shell is provided with a slot along the movement direction of the chain 1642 to avoid interference with the second cleaning member 1645.

[0054] A reflux chamber 17 is also provided on one side of the sewage tank 1; the inlet and outlet of the reflux chamber 17 are respectively connected to the upper and lower portions of the sewage tank 1 located on the fine filter 15; a second filter 171 is provided in the reflux chamber 17 for filtering the sewage entering the reflux chamber 17 again and then discharging the filtered sewage into the sewage tank 1 below the fine filter 15;

[0055] The inlet of the reflux chamber 17 is hinged with a feed baffle 172. A sensor is installed on one side of the feed baffle 172. The sensor is a pressure sensor or a distance sensor. When the second cleaning member 1645 moves to a preset position or contacts the sensor, it is triggered.

[0056] The driving gear 1641 drives the first driven gear 1643 and the second driven gear 1644 to rotate, thereby driving the second cleaning member 1645 to move from one end of the sewage tank 1 to the other, pushing impurities into the return chamber 17. When the second cleaning member 1645 triggers the sensor, the feed baffle 172 opens, thereby discharging the sewage and impurities into the return chamber 17. The second cleaning member 1645 is driven by the chain 1642 to move along the surface of the fine filter 15, continuously removing attached impurities and preventing mesh clogging. The cleaning process is fully automated, reducing the frequency of manual cleaning and lowering operating and maintenance costs. The second cleaning member 1645 pushes impurities on the fine filter 15 into the return chamber 17, preventing the impurities from continuing to spread in the water body. The impurities are then filtered and collected in the return chamber 17, further improving the sewage purification effect.

[0057] As a supplement, the feed baffle 172 can be driven by the motor 141 or the telescopic cylinder to achieve the opening and closing of the feed baffle 172.

[0058] Preferably, the cleaning components 164 are divided into two groups, which are symmetrically arranged on both sides of the stirring shaft 142, and are used to clean on both sides respectively, so that the fine filter 15 can be completely cleaned; the two second cleaning parts 1645 can be hinged at one end close to each other to rotate the section 16451, which can completely clean the fine filter 15 on the one hand and avoid interference with the stirring shaft 142 on the other hand.

[0059] Preferably, a pressure differential sensor is installed on the filtering side and the non-filtering side of the coarse filter 18 respectively, for detecting the pressure difference between the front and rear ends of the coarse filter 18. A control box is provided on one side of the sewage pool 1, and a pressure differential threshold is preset in the system. When the pressure differential measured in real time exceeds the threshold, the motor 141 reverses, driving the stirring component 14 to stir while driving the first cleaning component 145 to clean the coarse filter 18, and then opens the sewage baffle 121 to intermittently discharge impurities, and closes the water inlet valve to allow the cleaned impurities and accumulated impurities to flow out from the sewage outlet; in order to ensure the sealing of the sewage baffle 121, an electromagnet can also be provided. When the motor 141 reverses, the electromagnet is not energized, and when the motor 141 rotates forward, the electromagnet is energized.

[0060] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0061] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A sewage treatment equipment, characterized in that: include: A sewage tank, a reaction tank, a pressurizing tank, a clear water tank, and a return water tank connected to the clear water tank are sequentially arranged along the flow direction of the sewage; A liquid inlet is provided on one side of the bottom of the sewage pool; a sewage outlet is provided at the bottom of the sewage pool, and the sewage outlet is connected to the return water pool; a liquid outlet is provided on the top of the sewage pool, and the liquid outlet is connected to the reaction pool; The liquid outlet end of the liquid inlet is provided with a coarse filter, and the top end of the coarse filter is rotatably installed inside the sewage tank; A stirring assembly for mixing sewage and chemicals is provided at the bottom of the sewage pool; the stirring assembly comprises: a motor, a stirring shaft connected to the output end of the motor, a stirring blade mounted on the stirring shaft, and a cam coaxially connected to the stirring shaft; A first cleaning member for cleaning the coarse filter is slidably installed in the sewage tank, and one end of the first cleaning member abuts against the cam; The first cleaning member comprises: a cleaning brush, the cleaning brush comprising a brush body, bristles mounted on the cleaning side of the brush body, and a brush handle mounted on the non-cleaning side of the brush body; a first hinged rod hingedly connected to the brush handle of the cleaning brush, a sliding rod hingedly connected to the other end of the first hinged rod, the sliding rod abutting against the cam; The sliding rod is further connected to a spring, and the spring is used to drive the sliding rod to reset when the cam is separated from the sliding rod, thereby driving the cleaning brush to reset; Sliders are fixedly installed on both sides of the brush body, and the slides are slidably connected to the side walls of the sewage tank; A sewage outlet is provided at the bottom end of the sewage pool, a sewage baffle is hingedly connected to the sewage outlet, the sewage baffle is hingedly connected to a second hinged rod, and the second hinged rod is hingedly connected to the frame of the coarse filter; A one-way clutch is installed between the cam and the stirring shaft; The cam is used to drive the first cleaning member to slide, thereby driving the coarse filter screen to vibrate on the one hand, and cleaning the coarse filter screen through the first cleaning member on the other hand.

2. A sewage treatment equipment according to claim 1, characterized in that: The stirring blade is threadedly connected to the stirring shaft, and limit blocks are respectively installed at both ends of the thread.

3. A sewage treatment equipment according to claim 1, characterized in that: A fine filter is also installed horizontally in the sewage pool; The stirring shaft is also provided with a swing component that drives the fine filter to swing. The swing component includes: a driving bevel gear coaxially connected to the stirring shaft, a driven bevel gear transmission-connected to the driving bevel gear, and a shaking piece coaxially connected to the driven bevel gear.

4. A sewage treatment equipment according to claim 3, characterized in that: Also includes: A cleaning assembly for cleaning the fine filter, the cleaning assembly comprising: the driven bevel gear is also coaxially connected to a driving gear, the driving gear is connected to a first driven gear and a second driven gear through a chain transmission; the first driven gear and the second driven gear are respectively located on both sides of the driving gear, and a second cleaning member is connected to the chain.

5. A sewage treatment equipment according to claim 4, characterized in that: The cleaning components are divided into two groups and are symmetrically arranged on both sides of the stirring shaft.

6. A sewage treatment equipment according to claim 4 or 5, characterized in that: A reflux chamber is further provided on one side of the sewage pool; the inlet and outlet of the reflux chamber are respectively connected to the upper and lower sides of the sewage pool; a second filter is provided in the reflux chamber; The inlet of the reflow chamber is hinged with an inlet baffle, and a sensor is installed on one side of the inlet baffle. When the second cleaning member triggers the sensor, the feed damper opens.

7. The sewage treatment equipment according to claim 1, characterized in that: A dosing port is provided on one side of the liquid inlet, and the dosing port is connected to a dosing device, and the dosing device is provided on the sewage pool.

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