Anti-clogging dosing device for sewage treatment tank

Abstract

The utility model discloses a kind of anti-blocking chemical feeding devices of sewage treatment tank, including the dosing port being opened in the top of sewage treatment tank and the dosing machine being set in side, dosing machine projects with medicine outlet pipe, further include the conical blanker being set at dosing port, the small mouth end of conical blanker is connected with dosing port, at least one flush opening is arranged in the lateral wall of conical blanker, flush opening is connected with flush pipe, and the water outlet direction of flush opening is set along the tangent direction of the inner wall of conical blanker;The medicine outlet end of medicine outlet pipe is inserted into conical blanker, and the protection cover of inverted cone is arranged below the pipe opening of medicine outlet pipe, the big mouth end of protection cover is set downward, and the small mouth end is set upward, protection cover and medicine outlet pipe are fixedly connected with connection respectively, and the projection of the pipe opening of medicine outlet pipe along vertical direction is located in the projection of protection cover along vertical direction, and the big mouth end edge of protection cover is located above the spiral water flow formed from flush opening.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to an anti-clogging dosing device for a wastewater treatment tank. Background Technology

[0002] In wastewater treatment processes, various chemicals, such as flocculants, coagulants, and disinfectants, are typically added to the treatment tank to improve purification efficiency. These chemicals promote the aggregation of suspended particles, accelerate sedimentation, and inhibit microbial growth, thereby effectively improving water quality. Currently, most chemical dosing methods utilize mechanical dosing equipment. This involves installing a dosing port at the top of the wastewater treatment tank and a dosing machine next to it. The machine delivers the chemicals above the dosing port through a discharge pipe, allowing them to enter the wastewater treatment tank and mix thoroughly with the wastewater.

[0003] However, during the operation of wastewater treatment tanks, certain amounts of hot and humid gases are generated inside due to biochemical reactions or water agitation. These gases easily escape through the dosing port on the top of the tank. When the outlet pipe is directly opposite or close to the dosing port, the escaping hot and humid gases directly act on the outlet, causing residual chemicals on the outlet and its inner wall to become damp. For hygroscopic solid or granular chemicals such as flocculants, moisture significantly increases their viscosity, causing them to adhere to the inner wall of the outlet pipe and accumulate over time. This accumulation can partially or completely block the outlet pipe, preventing normal discharge and thus affecting chemical dosing and wastewater treatment. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is: how to provide an anti-clogging dosing device for sewage treatment tanks that can prevent the agent from getting damp and sticking at the dosing pipe inlet and avoid dosing pipe blockage.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A clog-resistant dosing device for a wastewater treatment tank includes a dosing port at the top of the tank and a dosing machine next to the dosing port. The dosing machine extends with a discharge pipe. The device also includes a conical feeder at the dosing port, with its smaller end connected to the dosing port and its larger end facing the same direction. At least one flushing port is provided on the side wall of the conical feeder, and a flushing pipe connected to the flushing port is provided outside the conical feeder. The water outlet direction of the flushing port is tangential to the inner wall of the conical feeder. The device is designed to allow the water to flow downwards in a spiral. The outlet end of the medicine pipe extends into the conical feeder. An inverted conical protective cover is installed below the outlet of the medicine pipe. The larger end of the protective cover faces downwards and the smaller end faces upwards. A connector is installed between the protective cover and the medicine pipe, and they are fixedly connected to each other through the connector. The vertical projection of the outlet of the medicine pipe is located within the vertical projection of the protective cover. The edge of the larger end of the protective cover is located above the spiral water flow formed from the flushing outlet.

[0006] In this invention, the protective cover is located below the pipe opening, acting like an "umbrella" to shield the rising moisture path and the falling powder path, providing the most direct and effective protection for the pipe opening. The tangential water inlet forms a spiral downward flow on the conical inner wall, which also protects the inner wall of the conical feeder. The water flow provides directional conveying power for the falling powder, quickly and thoroughly flushing it into the container and preventing it from lingering on the inner wall of the conical feeder.

[0007] As an optimization, the conical feeder is detachably connected to the dosing port via a flange. This allows for cleaning or replacement of the feeder without damaging the tank structure.

[0008] As an optimization, there are two flushing inlets, symmetrically arranged on the side wall of the conical feeder with the center line of the conical feeder as the axis of symmetry. The two symmetrically arranged flushing inlets allow two water streams to merge on the inner wall of the cone, forming a spiral water curtain that can cover the entire surface, avoiding the "dry zone" (area not covered by water flow) that may be caused by a single water stream, and ensuring no dead corner residue.

[0009] As an optimization, the inner wall of the conical feeder, on the side facing the water outlet, has a protrusion forming a guide rib to guide the water flow spirally downwards. This guide rib acts as a pre-set track, initially guiding and constraining the water flow, ensuring that the water can form a spiral downward flow on the inner wall of the cone more quickly and stably.

[0010] As an optimization, the protective cover and the conical feeder are aligned on the same center line, and the outlet end of the medicine outlet pipe extends downward to form a discharge section, which is aligned on the same center line as the protective cover. The discharge section ensures that the medicine powder is evenly dispersed across the entire conical surface of the protective cover, preventing the medicine powder from being biased to one side and causing local accumulation or obstruction. The dispersed medicine powder can also be better carried away by the water flow below.

[0011] As an optimization, a vibrator is installed on the lower surface of the protective cover to prevent powder adhesion. The high-frequency micro-vibration of the vibrator effectively breaks the adhesion between the powder and the surface of the protective cover, preventing powder residue.

[0012] As an optimization, a waterproof cover is also fixedly connected to the lower surface of the protective cover, enclosing the vibrator. The waterproof cover provides the vibrator with a dry, safe, and sealed working environment, preventing the vibrator from rusting, short-circuiting, or being damaged in a humid environment, thus improving the service life of the vibrator.

[0013] Compared with the prior art, this utility model has a simple structure. A protective cover is set between the outlet tube and the dosing port, forming an effective physical barrier that completely blocks the direct contact between the hot and humid airflow rising from the dosing port and the outlet tube, thus preventing the powder from getting damp and sticking at the tube opening. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the installation structure of the conical feeder and the sewage treatment tank in this utility model; Figure 2 This is a cross-sectional view of the structure between the conical feeder and the medicine outlet tube in this utility model. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0016] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In addition, the terms "horizontal," "vertical," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0017] like Figure 1 and Figure 2 As shown, the anti-clogging dosing device for the wastewater treatment tank in this specific embodiment includes a dosing port on the top of the wastewater treatment tank 1 and a dosing machine located next to the dosing port. The dosing machine extends out with a discharge pipe 2. It also includes a conical feeder 3 located at the dosing port. The small end of the conical feeder 3 is connected to the dosing port, and its large end faces the dosing port. At least one flushing port 4 is provided on the side wall of the conical feeder 3. A flushing pipe is provided on the outside of the conical feeder 3 and connected to the flushing port 4. The water outlet direction of the flushing port 4 is along the inner side of the conical feeder 3. The wall is tangentially oriented so that the water flow can spiral downwards; the outlet end of the medicine pipe 2 extends into the conical feeder 3, and an inverted conical protective cover 5 is provided below the opening of the medicine pipe 2. The large opening end of the protective cover 5 is facing down and the small opening end is facing up. A connector 6 is provided between the protective cover 5 and the medicine pipe 2 and is fixedly connected to them through the connector 6. The vertical projection of the opening of the medicine pipe 2 is located within the vertical projection of the protective cover 5, and the edge of the large opening end of the protective cover 5 is located above the spiral water flow formed from the flushing port 4.

[0018] In this specific embodiment, the conical feeder 3 is detachably connected to the dosing port via a flange.

[0019] In this specific embodiment, there are two flushing ports 4, which are symmetrically arranged on the side wall of the conical feeder 3 with the center line of the conical feeder 3 as the axis of symmetry.

[0020] In this specific embodiment, the inner wall of the conical feeder 3, on the side of the flushing port 4 in the water outlet direction, is formed with a guide rib 7 for guiding the water flow to spiral downward.

[0021] In this specific embodiment, the protective cover 5 and the conical feeder 3 are arranged on the same center line, and the outlet end of the medicine pipe 2 extends downward to form a discharge section, which is arranged on the same center line as the protective cover 5.

[0022] In this specific embodiment, a vibrator 8 for preventing powder from adhering is installed on the lower surface of the protective cover 5.

[0023] In this specific embodiment, a waterproof cover 9 that encloses the vibrator 8 is also fixedly connected to the lower surface of the protective cover 5.

[0024] When in use, first open the flushing pipe so that the water flow forms a water curtain that completely covers the inner wall of the conical feeder. Then open the dosing machine. The powder will fall through the discharge section and scatter on the upper surface of the inverted conical protective cover. The powder will slide down the smooth slope of the protective cover and be quickly captured by the water flow below and flushed into the sewage treatment tank.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail can be made without departing from the spirit and scope of this utility model as defined in the appended claims.

Claims

1. A clog-prevention dosing device for a wastewater treatment tank, comprising a dosing port located at the top of the wastewater treatment tank and a dosing machine disposed beside the dosing port, the dosing machine having a dispensing pipe extending out, characterized in that: It also includes a conical feeder installed at the dosing port. The small end of the conical feeder is connected to the dosing port, and its large end faces upwards. The side wall of the conical feeder is provided with at least one flushing port. A flushing pipe is provided on the outside of the conical feeder and connected to the flushing port. The water outlet direction of the flushing port is set along the tangent direction of the inner wall of the conical feeder so that the water flow can flow downwards in a spiral. The dispensing end of the dispensing pipe extends into the conical feeder. An inverted conical protective cover is provided below the opening of the dispensing pipe. The large end of the protective cover faces downwards and the small end faces upwards. A connector is provided between the protective cover and the dispensing pipe and is fixedly connected to them respectively through the connector. The vertical projection of the dispensing pipe opening is located within the vertical projection of the protective cover. The edge of the large end of the protective cover is located above the spiral water flow formed from the flushing port.

2. The anti-clogging dosing device for a sewage treatment tank according to claim 1, characterized in that: The conical feeder is detachably connected to the dosing port via a flange.

3. The anti-clogging dosing device for a wastewater treatment tank according to claim 1, characterized in that: There are two flushing inlets, which are symmetrically arranged on the side wall of the conical feeder with the center line of the conical feeder as the axis of symmetry.

4. The anti-clogging dosing device for a wastewater treatment tank according to claim 1, characterized in that: The inner wall of the conical feeder, on the side facing the water outlet, has a protrusion forming a guide rib to guide the water flow spirally downwards.

5. The anti-clogging dosing device for a wastewater treatment tank according to claim 1, characterized in that: The protective cover and the conical feeder are arranged on the same center line. The outlet end of the medicine outlet tube extends downward to form a discharge section, which is arranged on the same center line as the protective cover.

6. The anti-clogging dosing device for a wastewater treatment tank according to claim 1, characterized in that: The lower surface of the protective cover is equipped with a vibrator to prevent the powder from adhering.

7. The anti-clogging dosing device for a wastewater treatment tank according to claim 6, characterized in that: The lower surface of the protective cover is also fixedly connected to a waterproof cover that encloses the vibrator.

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