Liquid medicine mixing device for sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment, and particularly discloses a liquid medicine mixing device for sewage treatment, which comprises a tank body, supporting legs fixed at the lower end of the tank body, a feeding pipe communicated with the upper outer wall of the tank body, a discharging pipe communicated with the lower side of the tank body, a valve body mounted on the discharging pipe, and an exhaust pipe arranged at the upper end of the tank body, a mixing mechanism for mixing and stirring added liquid is arranged in the tank body; the mixing mechanism comprises a central shaft vertically arranged on the tank body, the upper end of the central shaft penetrates through the tank body and is connected with a power source, a top plate is fixed on the central shaft at the upper position of the inner side of the tank body, and a bottom plate is arranged at the lower end of the central shaft. Through the arrangement of a mixing mechanism, when a central shaft rotates, a main gear, a top plate and a bottom plate integrally rotate, the main gear and an auxiliary gear rotate in a meshed manner to drive a rotating shaft to reversely rotate relative to the central shaft, and stirring blades on the central shaft and the rotating shaft stir liquid in a tank body, so that a relative shearing state is formed among the liquid; and the liquid mixing efficiency and quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a wastewater treatment chemical mixing device. Background Technology

[0002] Wastewater generally refers to polluted wastewater from domestic and industrial processes. It mainly includes domestic sewage, industrial wastewater, and initial rainwater. Major pollutants in wastewater include pathogens, oxygen-consuming pollutants, plant nutrients, and toxic pollutants. Wastewater treatment requires the use of chemical mixing devices. An existing wastewater treatment chemical mixing device (publication number CN 221275249 U) uses a motor to drive a rotating shaft, which in turn moves a connecting plate. During this movement, a spring inside the connecting plate pushes a protective sleeve outward, causing a scraper to tightly engage with the inner wall of the mixing tank, thus scraping away any adhering substances. Simultaneously, a connecting rod at the bottom of the outer wall of the rotating shaft moves a stirring plate at the bottom of the mixing tank, preventing chemical sedimentation and further agitating the chemical and wastewater. However, this device only mixes the chemical through rotation in one direction, requiring prolonged agitation to achieve a good mixing effect, thus affecting treatment efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a wastewater treatment solution mixing device to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] A wastewater treatment liquid mixing device includes a tank, a support leg fixed to the lower end of the tank, a feed pipe connected to the upper outer wall of the tank, a discharge pipe connected to the lower side of the tank, a valve body installed on the discharge pipe, an exhaust pipe at the upper end of the tank, and a mixing mechanism for stirring the added liquid inside the tank. The mixing mechanism includes a central shaft vertically mounted on the tank, a power source connected to the upper end of the central shaft passing through the tank, a top plate fixed to the upper part of the central shaft inside the tank, a bottom plate at the lower end of the central shaft, a main gear fixed to the central shaft above the top plate, an agitator assembly between the top plate and the bottom plate on one side of the central shaft, the agitator assembly including a rotating shaft between the top plate and the bottom plate, a secondary gear fixed to the upper end of the rotating shaft passing through the top plate, stirring blades spaced apart on the outer diameter of the central shaft and the rotating shaft, at least two stirring blades on the rotating shaft with opposite inclination directions, and a scraper fixed between the bottom plate and the top plate.

[0006] Further configuration: The rotating shaft is rotatably connected to the top plate and the bottom plate, and the diameters of the top plate and the bottom plate are smaller than the inner diameter of the tank.

[0007] Further configuration: the main gear meshes with the auxiliary gear and rotates, and the feed inlet of the feeding pipe is lower than the top plate.

[0008] Further features: Through holes are spaced apart on the bottom plate, and an annular air pipe is installed on the underside of the bottom plate. A connecting pipe is connected to the annular air pipe, which passes through the tank and is connected to an air pump. A one-way valve is installed on the connecting pipe.

[0009] Further details: The annular air pipe is fixed to the inner wall of the tank, and air vents are evenly distributed on the annular air pipe.

[0010] Further design: The scraper is evenly distributed in three places, and the scraper is tangent to the inner wall of the tank.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] By setting up a mixing mechanism, when the central shaft rotates, the main gear, top plate, and bottom plate rotate as a whole. The main gear meshes with the secondary gear and rotates, driving the rotating shaft to rotate in the opposite direction relative to the central shaft. Both the central shaft and the stirring blades on the rotating shaft agitate the liquid in the tank, creating a relative shear state between the liquids, which improves the mixing efficiency and quality of the liquid. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a wastewater treatment chemical mixing device according to the present invention;

[0015] Figure 2 This is a schematic diagram of the main cross-sectional structure of a wastewater treatment chemical mixing device according to the present invention;

[0016] Figure 3 This is a half-sectional structural diagram of a wastewater treatment chemical mixing device according to the present invention;

[0017] Figure 4 This is a schematic diagram of the mixing mechanism of a wastewater treatment chemical mixing device according to the present invention.

[0018] The annotations in the attached figures are explained as follows:

[0019] 1. Tank body; 11. Support leg; 2. Feeding pipe; 3. Discharge pipe; 41. Central shaft; 42. Top plate; 43. Main gear; 44. Secondary gear; 45. Rotating shaft; 46. Agitator blade; 47. Bottom plate; 48. Scraper; 49. Annular air pipe; 410. Connecting pipe; 411. Air pump; 412. Check valve; 413. Gear motor; 5. Exhaust pipe. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.

[0022] The present invention will be further described below with reference to the accompanying drawings:

[0023] like Figures 1-4 As shown, a wastewater treatment liquid mixing device includes a tank 1, a support leg 11 fixed at the lower end of the tank 1, a feeding pipe 2 connected to the upper outer wall of the tank 1, a discharge pipe 3 connected to the lower side of the tank 1, a valve body installed on the discharge pipe 3, an exhaust pipe 5 provided at the upper end of the tank 1, and a mixing mechanism for mixing the added liquid provided inside the tank 1.

[0024] In this embodiment: the mixing mechanism includes a central shaft 41 vertically mounted on the tank 1. A reduction motor 413 is connected to the upper end of the central shaft 41, which passes through the tank 1. A top plate 42 is fixed to the central shaft 41 at an upper position inside the tank 1. A bottom plate 47 is mounted at the lower end of the central shaft 41. A main gear 43 is fixed to the central shaft 41 above the top plate 42. An agitation assembly is located between the top plate 42 and the bottom plate 47 on one side of the central shaft 41. The agitation assembly includes a rotating shaft 45 located between the top plate 42 and the bottom plate 47. A secondary gear 44 is fixed to the upper end of the rotating shaft 45, which passes through the top plate 42. Stirring blades 46 are spaced apart on the outer diameters of the central shaft 41 and the rotating shaft 45. The rotating shaft 45 has at least two such blades, and the stirring blades 46 on the rotating shaft 45 are inclined in opposite directions. The rotating shaft 45 is parallel to the top plate 42 and the bottom plate 47. 7. Rotary connection, the diameter of top plate 42 and bottom plate 47 is smaller than the inner diameter of tank 1; main gear 43 meshes with auxiliary gear 44 and rotates, the feed inlet of feed pipe 2 is lower than top plate 42, reduction motor 413 works to drive central shaft 41 to rotate, when rotating, the main gear 43 on central shaft 41, top plate 42 and bottom plate 47 rotate as a whole, the main gear 43 meshes with auxiliary gear 44 and rotates, driving rotating shaft 45 to rotate in the opposite direction to central shaft 41, the stirring blades 46 on central shaft 41 and rotating shaft 45 both stir the liquid in tank 1, so that the liquid forms a relative shear state; scraper 48 is fixed between bottom plate 47 and top plate 42, scraper 48 is evenly distributed in three places, scraper 48 is tangent to the inner wall of tank 1, scraper 48 scrapes the inner wall of tank 1 when rotating with bottom plate 47 and top plate 42.

[0025] The bottom plate 47 is provided with through holes at intervals, and an annular air pipe 49 is provided on the lower side of the bottom plate 47. A connecting pipe 410 is connected to the annular air pipe 49. The connecting pipe 410 passes through the tank 1 and is connected to an air pump 411. A one-way valve 412 is installed on the connecting pipe 410. The annular air pipe 49 is fixed on the inner wall of the tank 1. Ventilation holes are evenly distributed on the annular air pipe 49. When the air pump 411 works, gas enters the tank 1 through the connecting pipe 410 and the annular air pipe 49, agitating the liquid in the tank 1 with bubbles.

[0026] The working principle and usage process of this utility model are as follows: The reduction motor 413 drives the central shaft 41 to rotate. When rotating, the main gear 43, top plate 42 and bottom plate 47 on the central shaft 41 rotate as a whole. The main gear 43 meshes with the auxiliary gear 44 and rotates, driving the rotating shaft 45 to rotate in the opposite direction to the central shaft 41. The stirring blades 46 on the central shaft 41 and the rotating shaft 45 agitate the liquid in the tank 1, so that the liquid forms a relative shear state. The air pump 411 works to allow gas to enter the tank 1 through the connecting pipe 410 and the annular air pipe 49, which agitates the liquid in the tank 1 and accelerates the mixing efficiency of the liquid in the tank 1.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A wastewater treatment chemical mixing device, comprising a tank (1), wherein a support leg (11) is fixed to the lower end of the tank (1), a feeding pipe (2) is connected to the upper outer wall of the tank (1), a discharge pipe (3) is connected to the lower side of the tank (1), a valve body is installed on the discharge pipe (3), and an exhaust pipe (5) is provided at the upper end of the tank (1), characterized in that: The tank (1) is equipped with a mixing mechanism for mixing the added liquid; the mixing mechanism includes a central shaft (41) vertically mounted on the tank (1), the upper end of the central shaft (41) passing through the tank (1) and connected to a power source, a top plate (42) fixed on the central shaft (41) at an upper position inside the tank (1), a bottom plate (47) provided at the lower end of the central shaft (41), and a main gear (43) fixed on the central shaft (41) above the top plate (42), and a connection between the top plate (42) and the bottom plate (47). An agitation assembly is provided on one side of the central shaft (41). The agitation assembly includes a rotating shaft (45) disposed between the top plate (42) and the bottom plate (47). A secondary gear (44) is fixed to the upper end of the rotating shaft (45) through the top plate (42). Stirring blades (46) are provided at intervals on the outer diameter of the central shaft (41) and the rotating shaft (45). The rotating shaft (45) is provided at least in two places. The stirring blades (46) on the rotating shaft (45) are inclined in opposite directions. A scraper (48) is fixed between the bottom plate (47) and the top plate (42).

2. The wastewater treatment chemical mixing device according to claim 1, characterized in that: The rotating shaft (45) is rotatably connected to the top plate (42) and the bottom plate (47), and the diameters of the top plate (42) and the bottom plate (47) are smaller than the inner diameter of the tank body (1).

3. The wastewater treatment chemical mixing device according to claim 1, characterized in that: The main gear (43) meshes with the secondary gear (44) and rotates, and the feed inlet of the feed pipe (2) is lower than the top plate (42).

4. The wastewater treatment chemical mixing device according to claim 1, characterized in that: The bottom plate (47) is provided with through holes at intervals. An annular air pipe (49) is provided on the lower side of the bottom plate (47). A connecting pipe (410) is connected to the annular air pipe (49). The connecting pipe (410) passes through the tank (1) and is connected to an air pump (411). A one-way valve (412) is installed on the connecting pipe (410).

5. The wastewater treatment chemical mixing device according to claim 4, characterized in that: The annular air pipe (49) is fixed on the inner wall of the tank (1), and the annular air pipe (49) is evenly distributed with air vents.

6. The wastewater treatment chemical mixing device according to claim 1, characterized in that: The scraper (48) is evenly distributed in three places, and the scraper (48) is tangent to the inner wall of the tank (1).

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