Diversion type sewage pool dosing device

Abstract

The utility model discloses a diversion type sewage pool dosing device, and belongs to the technical field of sewage treatment. The dosing device is provided with the dosing tank, sewage and chemicals are preliminarily mixed in the dosing tank and then flow into the sewage pool through the dosing effluent weir, the dosing area is enlarged by the dosing tank, and the problem of improper dosing position possibly caused by single-point dosing is avoided. A lower flow guide plate, a water distribution flow guide wall and an upper flow guide plate are sequentially arranged in a sewage pool, sewage enters a stirring area from an outlet of the lower flow guide plate and an outlet of the water distribution flow guide wall, is stirred by a stirrer to increase radial mixing, finally enters a water outlet area from an outlet of the upper flow guide plate and is discharged from a water outlet, so that the sewage forms an approximate'plug flow 'state in the pool; and the medicament can be uniformly distributed in the sewage under the driving of water flow. Water distribution holes are formed in the water distribution flow guide wall, so that the contact between the sewage and the medicament is increased. A perforated pipe is arranged at the bottom of the sewage pool, and gas is discharged from gas holes, so that the medicament and the sewage are fully mixed in the rising process of bubbles.

Description

Technical Field

[0001] The utility model relates to a diversion type sewage pool dosing device, which belongs to the technical field of sewage treatment. Background Art

[0002] Discharging untreated or incompletely treated wastewater into water bodies can damage aquatic ecosystems. Pollutants in wastewater can alter the chemical and physical properties of water, impacting the survival and reproduction of aquatic organisms. For example, high concentrations of organic matter in wastewater can lead to eutrophication, triggering algal blooms and causing algal blooms. With increasingly stringent environmental regulations, wastewater discharge standards are also becoming increasingly stringent. Wastewater discharge must meet national and local water quality standards, including those for chemical oxygen demand (COD), biochemical oxygen demand (BOD), suspended solids (SS), ammonia nitrogen (NH3-N), total phosphorus (TP), and heavy metals. The addition of chemicals is a key means of ensuring that wastewater discharge meets these standards. For example, for urban wastewater treatment plants, the Class A discharge standard requires COD ≤ 50 mg / L, BOD ≤ 10 mg / L, and SS ≤ 10 mg / L. If the concentrations of these pollutants in wastewater are too high, chemicals must be added to reduce them to meet discharge requirements.

[0003] Therefore, wastewater treatment requires chemical addition, but improper placement of the chemical dosing point can affect its reaction with pollutants in the wastewater. Furthermore, if the chemical and wastewater are not fully mixed, localized concentrations can be excessively high or low. In a sewage tank, simply pouring the chemical into a corner prevents it from evenly dispersing throughout the water column. Pollutants near the dosing point may overreact due to an overdose of chemical, while pollutants farther away may not fully react due to insufficient chemical. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the utility model provides a diversion type sewage pool dosing device, which is provided with a dosing trough to expand the dosing area; and a lower guide plate, a water distribution guide wall and an upper guide plate are sequentially arranged in the sewage pool to ensure that the medicine and sewage are fully mixed during the diversion process.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a diversion type sewage pool dosing device, the sewage pool is provided with a water inlet and a water outlet, and a lower guide plate, a water distribution guide wall and an upper guide plate are sequentially arranged in the sewage pool; the lower guide plate is arranged on the top of the sewage pool, and a lower guide plate outlet is arranged between the lower guide plate and the bottom of the pool; the water distribution guide wall and the upper guide plate are arranged on the bottom of the sewage pool, the outlet on the guide wall is between the water distribution guide wall and the top of the pool, and the outlet on the upper guide plate is between the upper guide plate and the top of the pool; a stirring zone is provided between the water distribution guide wall and the upper guide plate, and an agitator is provided in the stirring zone; a dosing tank is provided on one side of the sewage pool, and a medicine storage tank is connected to the dosing tank through a pipeline; a perforated pipe is also provided on the bottom of the pool, and the perforated pipe is connected to an air pump.

[0006] Furthermore, the water inlet is arranged on the dosing tank, and the water outlet is arranged at the bottom of the sewage pool.

[0007] Furthermore, water distribution holes are provided on the water distribution guide wall.

[0008] Furthermore, the height of the water distribution guide wall is greater than the height of the upper guide plate.

[0009] Furthermore, the stirring device is provided with 2-4 layers of blades.

[0010] Furthermore, air holes are provided on the perforated tube.

[0011] Furthermore, the dosing tank is provided with a dosing outlet weir, which is connected to the wall of the sewage pool, and the height of the dosing outlet weir is lower than the top of the pool.

[0012] The beneficial effects of the present invention are as follows: the dosing device is provided with a dosing trough, where sewage and the reagent are initially mixed before flowing through the dosing outlet weir into the sewage pool. The dosing trough expands the dosing area and avoids the problem of inappropriate dosing location that may occur with single-point dosing. The sewage pool is sequentially provided with a lower guide plate, a water distribution guide wall, and an upper guide plate. Sewage flows from the outlet of the lower guide plate, then through the outlet of the water distribution guide wall, into the stirring zone. Agitated by an agitator, the sewage is then stirred to increase radial mixing before finally flowing from the outlet of the upper guide plate into the outlet zone and out of the outlet. This creates a nearly "pushing flow" state within the pool, allowing the reagent to be evenly distributed throughout the sewage under the influence of the water flow. Water distribution holes in the water distribution guide wall increase contact between sewage and the reagent. A perforated pipe is provided at the bottom of the sewage pool, through which gas is discharged, ensuring thorough mixing of the reagent and sewage during the rising process of the bubbles. The device has a simple structure and solves the problems of irrational dosing point placement and uneven mixing of the reagent and sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The present invention is a structural diagram of a diversion type sewage tank dosing device.

[0014] In the figure: 1. Sewage pool, 2. Pool bottom, 3. Pool top, 4. Dosing tank, 4a. Dosing outlet weir, 5. Lower guide plate, 5a. Lower guide plate outlet, 6. Water distribution guide wall, 6a. Guide wall outlet, 6b. Water distribution hole, 7. Agitator, 7a. Paddle, 8. Upper guide plate, 8a. Upper guide plate outlet, 9. Air pump, 10. Perforated pipe, 10a. Air hole, 11. Drug storage tank, 12. Water inlet, 13. Water outlet. DETAILED DESCRIPTION

[0015] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0016] 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 in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0017] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0018] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​described in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0019] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0020] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0021] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0022] Figure 1 A diversion type sewage pool dosing device is shown. The sewage pool 1 is provided with a water inlet 12 and a water outlet 13. The water inlet 12 is provided on the dosing tank 4, and the water outlet 13 is provided at the bottom of the sewage pool 1.

[0023] A lower guide plate 5, a water distribution guide wall 6, and an upper guide plate 8 are sequentially arranged within the sewage tank 1. The lower guide plate 5 is arranged at the top 3 of the sewage tank 1, and a lower guide plate outlet 5a is provided between the lower guide plate 5 and the bottom 2. The water distribution guide wall 6 and the upper guide plate 8 are arranged at the bottom 2 of the sewage tank 1. The guide wall outlet 6a is located between the water distribution guide wall 6 and the top 3, and the upper guide plate outlet 8a is located between the upper guide plate 8 and the top 3. The height of the water distribution guide wall 6 is greater than that of the upper guide plate 8. Water distribution holes 6b are provided on the water distribution guide wall 6.

[0024] The stirring zone is between the water distribution guide wall 6 and the upper guide plate 8, and the stirring zone is provided with a stirrer 7; 2-4 layers of blades 7a are provided on the stirrer 7.

[0025] A dosing tank 4 is provided on one side of the sewage pool 1, and the medicine storage tank 11 is connected to the dosing tank 4 through a pipeline; the dosing tank 4 is provided with a dosing outlet weir 4a, which is connected to the pool wall of the sewage pool 1, and the height of the dosing outlet weir 4a is lower than the pool top 3.

[0026] The pool bottom 2 is further provided with a perforated pipe 10, which is connected to the air pump 9. The perforated pipe 10 is provided with air holes 10a.

[0027] The sewage and the chemical are initially mixed in the dosing tank 4 before flowing through the dosing outlet weir 4a into the sewage tank. The dosing tank 4 expands the dosing area, avoiding the potential problem of inappropriate dosing locations caused by single-point dosing. The sewage tank 1 is sequentially equipped with a lower guide plate 5, a water distribution wall 6, and an upper guide plate 8. Sewage flows from the lower guide plate outlet 5a through the water distribution wall outlet 6a, into the stirring zone, where it is agitated by agitator 8 to increase radial mixing. Finally, it flows from the upper guide plate outlet 8a into the outlet zone and is discharged through outlet 13. This creates a near-pushing flow within the tank, evenly distributing the chemical through the water flow. As the sewage flows through the water distribution holes 6b in the water distribution wall 6, contact between the sewage and the chemical is increased. A perforated pipe 10 is installed at the bottom 2 of the sewage tank 1, allowing gas to escape through the air holes 10a, ensuring thorough mixing of the chemical and sewage during the rising bubbles. The device has a simple structure and solves the problems of unreasonable setting of dosing points and uneven mixing of chemicals and sewage.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A diversion-type sewage pool dosing device, wherein the sewage pool (1) is provided with a water inlet (12) and a water outlet (13), characterized in that: A lower guide plate (5), a water distribution guide wall (6), and an upper guide plate (8) are sequentially arranged in the sewage pool (1); the lower guide plate (5) is arranged at the pool top (3) of the sewage pool (1), and a lower guide plate outlet (5a) is arranged between the lower guide plate (5) and the pool bottom (2); the water distribution guide wall (6) and the upper guide plate (8) are arranged at the pool bottom (2) of the sewage pool (1), an outlet (6a) on the guide wall is located between the water distribution guide wall (6) and the pool top (3), and an upper guide plate outlet (8a) is located between the upper guide plate (8) and the pool top (3); A stirring zone is formed between the water distribution guide wall (6) and the upper guide plate (8), and a stirrer (7) is provided in the stirring zone; A drug-adding tank (4) is provided on one side of the sewage pool (1), and the drug storage tank (11) is connected to the drug-adding tank (4) via a pipeline; The pool bottom (2) is further provided with a perforated pipe (10), which is connected to the air pump (9).

2. A diversion type sewage pool dosing device according to claim 1, characterized in that: The water inlet (12) is arranged on the dosing tank (4), and the water outlet (13) is arranged at the bottom of the sewage pool (1).

3. The diversion type sewage pool dosing device according to claim 1, characterized in that: Water distribution holes (6b) are provided on the water distribution guide wall (6).

4. The diversion type sewage pool dosing device according to claim 1, characterized in that: The height of the water distribution guide wall (6) is greater than the height of the upper guide plate (8).

5. The diversion type sewage pool dosing device according to claim 1, characterized in that: The stirrer (7) is provided with 2-4 layers of blades (7a).

6. The diversion type sewage pool dosing device according to claim 1, characterized in that: The perforated tube (10) is provided with air holes (10a).

7. The diversion type sewage pool dosing device according to claim 1, characterized in that: The dosing tank (4) is provided with a dosing outlet weir (4a), which is connected to the wall of the sewage pool (1), and the height of the dosing outlet weir (4a) is lower than the pool top (3).

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