Sewage treatment device

Abstract

The utility model discloses a sewage treatment device which comprises a reaction tank, the reaction tank adopts a structure of which the inner diameter is gradually reduced from top to bottom, a plurality of layers of filter plates are arranged in the reaction tank, the joints of the filter plates and the reaction tank are sealed through sealing rubber rings, a liquid injection mechanism is inserted above the reaction tank, and the liquid injection mechanism penetrates through the centers of the plurality of layers of filter plates. Relates to the technical field of sewage treatment, the joint of a filter plate and a reaction tank is sealed through a sealing rubber ring, sealing between the filter plate and the reaction tank can be achieved, insufficient filtering is avoided, the sewage treatment effect is improved, meanwhile, through arrangement of a clamping piece and a clamping groove, rapid installation of a drainage cap is facilitated, clamping feet of the clamping piece are clamped in the clamping groove, the attractiveness is higher, and the service life is prolonged. Meanwhile, the conical elastic gasket is arranged, sealing of the connecting position can be achieved along with installation of the drainage cap, practicability is higher, installation can be completed by directly lowering the filter plate to the corresponding position, the installation process is simple, and use is more convenient.

Description

A wastewater treatment device Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, specifically a wastewater treatment device. Background Technology

[0002] Water treatment can also be called wastewater treatment. However, the latter is a broad term and can also refer to industrial wastewater. For most cities, the sewer system also discharges a portion of sewage to wastewater treatment plants, which typically pre-treat the wastewater at the plant itself to reduce pollutant load. If the sewer system is a combined system, it will also carry urban runoff (rainwater) to the wastewater treatment plant. Sewage can flow to the wastewater treatment plant through pipes and with the assistance of gravity and pumps. The wastewater is then treated and purified at the treatment plant. Currently, the commonly used wastewater treatment method is a combination of physical and chemical methods. This often involves feeding wastewater into reaction tanks, adding chemicals for chemical reactions, or electrolysis and other processes, followed by filtration of impurities.

[0003] Existing wastewater treatment devices directly add wastewater and reagents to the reaction tank through pipes, and then filter the wastewater through a filter plate after the reaction. However, existing devices do not consider the sealing between the reaction tank and the filter plate, or the sealing between the filter plate and the drain cap. The poor sealing performance prevents sufficient filtration and affects the wastewater treatment effect. At the same time, the wastewater and reagents are not fully mixed, which prevents a complete reaction and affects the wastewater treatment effect. Furthermore, the existing equipment is complicated to install and inconvenient to use. Summary of the Invention

[0004] The purpose of this invention is to provide a wastewater treatment device to solve the problems mentioned in the background art.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A wastewater treatment device includes a reaction tank with a gradually decreasing inner diameter from top to bottom. The reaction tank is equipped with several layers of filter plates, and the connection between the filter plates and the reaction tank is sealed by a sealing ring. A liquid injection mechanism is inserted at the top of the reaction tank, and the liquid injection mechanism passes through the center of the several layers of filter plates.

[0007] Preferably, the liquid injection mechanism is fixedly connected to several layers of filter plates, and the connection is sealed.

[0008] Preferably, a sealing groove is provided on the inner side of the reaction vessel, and the sealing ring is fitted into the sealing groove;

[0009] The diameter of several filter plates decreases sequentially from top to bottom, and the diameter of the filter plates is adapted to the inner diameter of the reaction vessel at the corresponding position.

[0010] The filter plate includes a filter plate body, on which a plurality of drainage caps are provided. A counterweight support is provided at the bottom of the filter plate body. The counterweight support includes two vertical support rods. The filter plate body is divided into nine regions by the counterweight support. A plurality of drainage caps are located in the nine regions. The drainage caps in the central region are arranged in a rectangular array, and the drainage caps in the eight outer regions are arranged in a ring array.

[0011] Preferably, the reaction vessel has an electrolysis reaction zone at the bottom, a drainage weir on the outer side of the top of the reaction vessel, and a cover plate on the top of the reaction vessel;

[0012] The reaction vessel is divided into several filter layers along the vertical direction by several layers of filter plates, and each filter layer has an inspection port on its outer wall.

[0013] Preferably, the elastic gasket has a frustum-shaped structure, and its upper outer diameter is smaller than its lower outer diameter;

[0014] A slot is provided on the inner side of the lower end of the mounting hole, and the clip is engaged in the slot.

[0015] Preferably, the injection mechanism includes a mixing tank, with an infusion pipe connected to the bottom outlet of the mixing tank, and a liquid inlet and a drug inlet distributed at the left and right ends of the top of the mixing tank. A mixing plate is provided inside the mixing tank, and the mixing plate is located below the liquid inlet and the drug inlet. A buffer plate is provided at the center below the mixing plate.

[0016] Preferably, the mixing plate adopts a circular structure with an annular baffle at its center and a plurality of liquid outlets on the baffle.

[0017] Preferably, the mixing plate has a structure in which the height gradually decreases from top to bottom;

[0018] The buffer plate is located below the central through hole of the mixing plate, and it has a structure in which the height gradually decreases from the center to both ends. It is located above the outlet of the mixing tank.

[0019] Preferably, the upper end of the infusion tube is sealed to the outlet of the mixing tank, and the infusion tube is provided with a spiral mixing channel.

[0020] Preferably, the top of the mixing tank is also provided with an exhaust port.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0022] In this invention, the connection between the filter plate and the reaction tank is sealed with a sealing ring, achieving a tight seal between the filter plate and the reaction tank, preventing insufficient filtration, and improving wastewater treatment efficiency. Simultaneously, the inclusion of clips and slots facilitates the quick installation of the drain cap, with the clip's feet fitting into the slots for improved aesthetics and easier cleaning and replacement. A conical elastic gasket further enhances the sealing at the connection point as the drain cap is installed, increasing practicality. Installation is simple, requiring only the filter plate to be lowered into its corresponding position, making it convenient to use. Furthermore, the inclusion of a mixing plate in the mixing tank and a spiral mixing channel in the infusion pipe ensures thorough mixing of wastewater and the reaction agent, resulting in complete reaction of impurities in the wastewater and improving wastewater treatment efficiency. Attached Figure Description

[0023] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 is an enlarged view of the structure at point A of this utility model;

[0025] Figure 3 is a schematic diagram of the filter plate structure of this utility model;

[0026] Figure 4 is a schematic diagram of the main structure of the filter plate of this utility model;

[0027] Figure 5 is a schematic diagram of the drainage cap structure of this utility model;

[0028] Figure 6 is a schematic diagram of the drainage cap connection structure of this utility model;

[0029] Figure 7 is a schematic diagram of the overall structure of the liquid injection mechanism of this utility model;

[0030] Figure 8 is a cross-sectional view of the mixing tank of this utility model;

[0031] Figure 9 is a cross-sectional view of the infusion tube of this utility model;

[0032] Figure 10 is a top view of the inside of the infusion tube of this utility model;

[0033] In the diagram: 1. Reaction vessel; 11. Electrolysis reaction zone; 12. Drainage weir; 13. Sealing ring; 14. Inspection port; 15. Cover plate; 2. Filter plate; 21. Filter plate body; 211. Mounting hole; 212. Slot; 22. Drainage cap; 221. Drainage cap body; 222. Clip; 223. Elastic gasket; 23. Counterweight bracket; 3. Liquid injection mechanism; 31. Mixing tank; 311. Chemical inlet; 312. Liquid inlet; 313. Exhaust port; 314. Mixing plate; 315. Baffle; 316. Liquid outlet; 317. Buffer plate; 32. Infusion pipe; 321. Spiral mixing channel. Detailed Implementation

[0034] The specific embodiments of this utility model are described in detail below.

[0035] The "range" disclosed in this utility model is defined by a lower limit and an upper limit. A given range is defined by selecting a lower limit and an upper limit, which define the boundaries of a particular range. Ranges defined in this way can include or exclude endpoints and can be arbitrarily combined; that is, any lower limit can be combined with any upper limit to form a range. For example, if a range of 10–50 is listed for a specific parameter, it is also expected that ranges of 10–40 and 20–50 are also included. Furthermore, if the minimum range values ​​are listed as 1 and 2, and the maximum range values ​​are listed as 3, 4, and 5, then the following ranges are all expected: 1–3, 1–4, 1–5, 2–3, 2–4, and 2–5. In this application, unless otherwise stated, the numerical range "a–b" represents a shortened representation of any combination of real numbers between a and b, where a and b are real numbers. For example, the numerical range "0–5" means that all real numbers between "0–5" have been listed herein; "0–5" is merely a shortened representation of these numerical combinations.

[0036] Unless otherwise specified, all embodiments and optional embodiments of this application can be combined to form new technical solutions.

[0037] Unless otherwise specified, all technical features and optional technical features of this application may be combined to form new technical solutions.

[0038] Unless otherwise specified, all steps in this application may be performed sequentially or randomly, preferably sequentially. For example, the method includes steps (a) and (b), indicating that the method may include steps (a) and (b) performed sequentially, or it may include steps (b) and (a) performed sequentially. For example, the mention that the method may also include step (c) indicates that step (c) may be added to the method in any order. For example, the method may include steps (a), (b), and (c), or it may include steps (a), (c), and (b), or it may include steps (c), (a), and (b), etc.

[0039] Unless otherwise specified, the terms "comprising" and "including" as used in this application can be open-ended or closed-ended. For example, "comprising" and "including" can mean that other components not listed may also be included, or that only the listed components may be included.

[0040] Unless otherwise specified, the reaction will proceed under normal temperature and pressure conditions.

[0041] Unless otherwise specified, all parts or percentages are by weight or by weight percentage.

[0042] In this invention, all the substances used are known substances that can be purchased or synthesized by known methods.

[0043] In this invention, all the devices or equipment used are conventional devices or equipment known in the art and are readily available.

[0044] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0045] Example:

[0046] A wastewater treatment device, as shown in Figures 1-10, includes a reaction tank 1. The reaction tank 1 has a structure in which the inner diameter gradually decreases from top to bottom. Several layers of filter plates 2 are provided inside the reaction tank 1. The connection between the filter plates 2 and the reaction tank 1 is sealed by a sealing ring 13. A liquid injection mechanism 3 is inserted above the reaction tank 1. The liquid injection mechanism 3 passes through the center of the several layers of filter plates 2.

[0047] In one possible implementation, the liquid injection mechanism 3 is fixedly connected to several layers of filter plates 2, and the connection is sealed.

[0048] In one possible implementation, a sealing groove is provided on the inner side of the reaction vessel 1, and a sealing ring 13 is fitted into the sealing groove.

[0049] The diameter of several layers of filter plates 2 decreases from top to bottom, and the diameter of filter plate 2 is matched with the inner diameter of reaction vessel 1 at the corresponding position.

[0050] The filter plate 2 includes a filter plate body 21, on which a plurality of drainage caps 22 are provided. A counterweight support 23 is provided at the bottom of the filter plate body 21. The counterweight support 23 includes two vertical support rods. The filter plate body 21 is divided into nine areas by the counterweight support 23. A plurality of drainage caps 22 are located in the nine areas. The drainage caps 22 in the central area are arranged in a rectangular array, and the drainage caps 22 in the eight outer areas are arranged in a ring array.

[0051] In one possible implementation, since the overall mass of the filter plate body 21 is relatively light, if it is placed in the reaction vessel 1 by its own mass, the filter plate body 21 is easily inflated during the impact of the liquid below, resulting in poor sealing. Based on this, the counterweight bracket 23 can provide counterweight for the filter plate 2 to avoid the problem of poor sealing effect due to insufficient mass of the filter plate body 21.

[0052] In one possible implementation, the bottom of the reaction tank 1 is provided with an electrolysis reaction zone 11, the outer side of the top of the reaction tank 1 is provided with a drainage weir 12, the top of the reaction tank 1 is provided with a cover plate 15, and the liquid injection mechanism 3 passes through the cover plate 15.

[0053] The reaction vessel 1 is divided into several filter layers in the vertical direction by several layers of filter plates 2, and each filter layer has an inspection port 14 on its outer wall.

[0054] In one possible implementation, the elastic gasket 223 has a frustum-shaped structure, and the outer diameter of its upper end is smaller than the outer diameter of its lower end.

[0055] A slot 212 is provided on the inner side of the lower end of the mounting hole 211, and the clip 222 is engaged in the slot 212.

[0056] In one possible implementation, the elastic pad 223 is made of silicone.

[0057] In one possible implementation, the injection mechanism 2 includes a mixing tank 31, with an infusion pipe 32 connected to the bottom outlet of the mixing tank 31. The top left and right ends of the mixing tank 31 are provided with a liquid inlet 312 and a drug inlet 311. A mixing plate 314 is provided inside the mixing tank 31, and the mixing plate 314 is located below the liquid inlet 312 and the drug inlet 311. A buffer plate 317 is provided at the center below the mixing plate 314.

[0058] In one possible implementation, the mixing plate 314 adopts a ring-shaped structure, with an annular baffle 315 at its center, and a plurality of liquid outlets 316 on the baffle 315.

[0059] In one possible implementation, the mixing plate 314 has a structure in which the height gradually decreases from top to bottom;

[0060] The buffer plate 317 is located below the central through hole of the mixing plate 314. It adopts a structure in which the height gradually decreases from the center to both ends, and it is located above the outlet of the mixing tank 31.

[0061] In one possible implementation, the upper end of the infusion pipe 32 is sealed to the outlet of the mixing tank 31, and the infusion pipe 32 is provided with a spiral mixing channel 321.

[0062] In one possible implementation, the top of the mixing tank 31 is also provided with an exhaust port 313.

[0063] Working principle, refer to Figure 1-10, installation process of drain cap 22: insert clip 222 into mounting hole 211, press down on drain cap body 221, at this time the lower end of elastic pad 223 is squeezed outward until the clip foot of clip 222 is locked in the slot 212, and the drain cap 22 is installed.

[0064] Since the liquid injection mechanism 3 and several filter plates 2 are fixedly connected, the whole is placed into the reaction tank 1. When it reaches the appropriate position, the filter plate 2 contacts the sealing ring 13. Press the filter plate 2 down. At this time, the filter plate 2 squeezes the sealing ring 13 and deforms the sealing ring 13 until the counterweight bracket 23 below contacts the side wall of the reaction tank 1. At this time, the sealing ring 13 and the filter plate 2 are sealed. At the same time, the inspection port 14 on the outside of the reaction tank 1 can be opened to clean and maintain the inside of the reaction tank 1.

[0065] The liquid inlet 312 and the chemical inlet 311 are connected to the sewage pipe and the chemical pipe, respectively. The sewage and the chemical solution enter the mixing tank 31 through the liquid inlet 312 and the chemical inlet 311, respectively, and fall onto the mixing plate 314. Since the mixing plate 314 is an inwardly concave annular structure, the sewage and the chemical solution are mixed on the mixing plate 314 (first mixing) and flow out from the outlet 316 on the baffle 315, falling onto the buffer plate 317 (reducing the falling speed of the mixed solution to facilitate secondary mixing in the spiral mixing channel 321). The mixture is then diverted to the side wall of the mixing tank 31 through the arc surface of the buffer plate 317 until it flows out from the bottom outlet of the mixing tank 31. After secondary mixing in the spiral mixing channel 321, the liquid injection in the sewage treatment process is completed.

[0066] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wastewater treatment device, characterized in that: The reaction vessel (1) is designed with a structure in which the inner diameter gradually decreases from top to bottom. The reaction vessel (1) is provided with several layers of filter plates (2). The filter plates (2) are sealed with a sealing ring (13) at the connection between them. A liquid injection mechanism (3) is inserted above the reaction vessel (1). The liquid injection mechanism (3) passes through the center of the filter plates (2). The liquid injection mechanism (3) includes a mixing tank (31). A liquid inlet (32) is connected to the bottom outlet of the mixing tank (31). A liquid inlet (312) and a drug inlet (311) are distributed at the left and right ends of the top of the mixing tank (31). A mixing plate (314) is provided inside the mixing tank (31). The mixing plate (314) is located below the liquid inlet (312) and the drug inlet (311). A buffer plate (317) is provided at the center below the mixing plate (314).

2. The wastewater treatment device as described in claim 1, characterized in that: The liquid injection mechanism (3) is fixedly connected to several layers of filter plates (2), and the connection is sealed.

3. The wastewater treatment device as described in claim 1, characterized in that: The reaction vessel (1) has a sealing groove on its inner side, and the sealing ring (13) is fitted into the sealing groove; the diameter of several layers of filter plates (2) decreases from top to bottom, and the diameter of the filter plate (2) is adapted to the inner diameter of the reaction vessel (1) at the corresponding position; the filter plate (2) includes a filter plate body (21), and several drainage caps (22) are provided on the filter plate body (21). The bottom of the filter plate body (21) is provided with a counterweight bracket (23), and the counterweight bracket (23) includes two vertical support rods. The filter plate body (21) is divided into nine areas by the counterweight bracket (23), and several drainage caps (22) are provided in the nine areas. The drainage caps (22) in the central area are distributed in a rectangular array, and the drainage caps (22) in the eight outer areas are distributed in a ring array.

4. The wastewater treatment device as described in claim 3, characterized in that: The reaction tank (1) has an electrolytic reaction zone (11) at the bottom, a drainage weir (12) on the outer side of the top of the reaction tank (1), and a cover plate (15) on the top of the reaction tank (1). The reaction tank (1) is divided into several filter layers in the vertical direction by several layers of filter plates (2), and each filter layer has an inspection port (14) on its outer wall.

5. A wastewater treatment device as described in claim 4, characterized in that: The elastic gasket (223) adopts a frustum-shaped structure, and its upper outer diameter is smaller than its lower outer diameter; a slot (212) is provided on the inner side of the lower end of the mounting hole (211), and the clip (222) is clipped in the slot (212).

6. A wastewater treatment device as described in claim 1, characterized in that: The mixing plate (314) adopts a circular structure, and a ring-shaped baffle (315) is provided at its center. The baffle (315) has several liquid outlets (316).

7. A wastewater treatment device as described in claim 1, characterized in that: The mixing plate (314) has a structure in which the height gradually decreases from top to bottom; the buffer plate (317) is located below the central through hole of the mixing plate (314), and has a structure in which the height gradually decreases from the center to both ends, and is located above the outlet of the mixing tank (31).

8. A wastewater treatment device as described in claim 1, characterized in that: The upper end of the infusion tube (32) is sealed to the outlet of the mixing tank (31), and a spiral mixing channel (321) is provided inside the infusion tube (32).

9. A wastewater treatment device as described in claim 1, characterized in that: The mixing tank (31) is also provided with an exhaust port (313) on the top.

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