Automatic dosing device for production sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment, in particular to an automatic dosing device for production sewage treatment, which comprises a mixing component and a screening component, the mixing component is positioned in a tank body and is connected with a driving shaft on a driving motor, and the screening component is positioned in the tank body. The lower end of the mixing assembly is connected with a screening assembly, a layering filter screen is arranged at the bottom of the tank body, a discharging cavity is formed in the lower end of the layering filter screen, and the discharging cavity discharges mixed medicine liquid through the discharging pipe. Extrusion contact is generated between the mixing assembly and the turbulent flow column, the screening assembly is driven to achieve vertical linear motion, three-dimensional flow guiding and mixing of liquid medicine are achieved, the screening assembly periodically moves up and down along with the stirring action, the screening efficiency is improved, and the screening effect is good. Therefore, the problems that in the prior art, mixing is uneven, and solid impurities in liquid medicine cannot be dynamically screened out are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field, concretely relates to a kind of automatic dosing device for production sewage treatment. BACKGROUND

[0002] With the continuous advancement of industrialization and urbanization process in China, the sewage discharge increases rapidly, and the types of pollutants become increasingly complex. To ensure that the discharged water quality meets the standards and reduce operating costs, various flocculants, conditioners, phosphorus removal agents and other chemical agents need to be automatically and accurately added to the sewage treatment system to achieve efficient removal of suspended solids, colloids, organic matter and heavy metals and other pollutants.

[0003] However, the existing peristaltic pump / plunger pump matched stirring tank has limited stirring effect, which easily leads to liquid medicine precipitation and pump pipe blockage. Although the static mixer can achieve mixing with the help of water flow, it is not good for high-viscosity or high-solid-content liquid medicine, and once the mixing element is stuck by solid particles, it needs to be stopped for cleaning. Although the commercially available mechanical stirring and screening integrated machine integrates stirring and filtering functions, it generally has fixed screening structure and lacks synchronous linkage with the mixing assembly, which makes it difficult to cope with different characteristics of reagents, resulting in uneven mixing, low screening efficiency and high maintenance cost.

[0004] In view of the above situation, in order to overcome the above technical problems, the utility model designs an automatic dosing device for production sewage treatment, which solves the above technical problems. UTILITY MODEL CONTENTS

[0005] The technical purpose to be achieved by the utility model is to provide an automatic dosing device for production sewage treatment, which has compact structure and can realize multi-level three-dimensional flow guiding and stirring in the tank body.

[0006] In order to achieve the above technical purpose, the utility model provides the following technical scheme:

[0007] The automatic dosing device for production sewage treatment provided by the utility model is installed on a sewage treatment equipment, which includes a tank body, a driving motor installed on the top of the tank body, and a discharge pipe connected to the bottom end. It includes a mixing assembly and a screening assembly. The mixing assembly is located in the tank body and connected to the driving shaft of the driving motor. The lower end of the mixing assembly is connected to the screening assembly. The bottom of the tank body is provided with a layered filter screen. The lower end of the layered filter screen is provided with a discharge cavity. The discharge cavity discharges mixed liquid through the discharge pipe.

[0008] The utility model combines layered filter screen and movable screening plate to automatically and dynamically complete the whole dosing process, improve the uniformity of liquid medicine and screening effect, reduce downtime cleaning and maintenance cost.

[0009] Preferably, at least two protruding spoiler columns are mounted on the inner wall of the tank body; the outer side of the mixing assembly is in extrusion contact with the spoiler columns, thereby driving the vertical linear motion of the screening assembly. By setting the spoiler columns in the tank body and causing the extrusion contact between the mixing assembly and the spoiler columns, the vertical linear motion of the screening assembly is driven, forming a mixed-screening integrated linkage structure.

[0010] The mixing assembly comprises a material guiding stirring blade, a pressing rod and a mixing stirring blade, the material guiding stirring blade and the mixing stirring blade are combined in an up-down manner to form a stirring blade acting on the fluid in the tank body, the pressing rod is slidably mounted on the stirring blade by a spring, and the pressing rod is connected with the screening assembly through a gear and rack transmission structure.

[0011] Preferably, the stirring blade is two and symmetrically arranged on the driving shaft, and the material guiding stirring blades and the mixing stirring blades on the two stirring blades are arranged in an up-down staggered manner; the lower material guiding stirring blade is used for upward flow guiding, and the upper material guiding stirring blade is used for downward flow guiding.

[0012] The material guiding stirring blades arranged in an up-down staggered manner in the mixing assembly are used for downward flow guiding and upward flow guiding, respectively, thereby forming a closed circulation flow field, so that the medicine liquid forms a spiral overturning convection path in the tank body; not only the mixing effect is improved, but also the periodic motion driving force of the screening assembly is enhanced, thereby further improving the matching effect of the screening plate and the layered filter screen, and indirectly reducing the risk of blockage.

[0013] The pressing rod comprises a pressing rack at the inner end and a pressing push head at the outer end, and the pressing racks on the two sides are arranged in an interlaced manner.

[0014] Preferably, the pressing push head is in the shape of a crescent moon.

[0015] The screening assembly comprises a linkage rod and a screening plate, the linkage rod is slidably mounted on the driving shaft by a spring, the linkage rod is provided with a linkage rack, the linkage rack is in transmission connection with the pressing rack through a linkage gear, and the screening plate is mounted at the lower end of the linkage rod and in contact with the layered filter screen.

[0016] Further, the screening plate is provided with a screening filter screen baffle, the outer side of the screening filter screen is mounted with the baffle, and the bottom end of the screening filter screen is mounted with a crushed material pressing piece.

[0017] Preferably, the crushed material pressing piece is provided with a through hole, and the two sides of the crushed material pressing piece are slidably mounted in the two limiting slide buckles.

[0018] The beneficial effects of the utility model are as follows:

[0019] 1.The utility model discloses a mixing-sieving integrated linkage structure is formed to the screen assembly vertical linear motion is realized by the extrusion contact between the mixing assembly and the spoiler column which is arranged in the tank body, not only strengthens the stirring shear force, realizes the three -dimensional fluid -mixing of liquid medicine, but also can make the screen assembly periodic up-down movement with the stirring action, improves the screening efficiency, thereby effectively solve the problem of the separation of stirring and screening structure, uneven mixing, solid impurities in liquid medicine cannot be dynamically screened in the prior art.

[0020] 2.The utility model discloses further improve the stirring efficiency and fluid guiding effect, and the material guiding stirring blade structure of up and down staggered is arranged in the mixing assembly, wherein the upper blade is used to flow to the down, and the lower blade is used to flow to the up, constitutes closed circulation flow field, makes liquid medicine form spiral overturning type convection path in the tank body, not only promotes the mixing effect, also strengthens the periodic motion driving force of screen assembly, thereby further improves the matching effect of screening board and layered filter screen, indirectly reduces the risk of blockage. ACCURACY OF DRAWINGS

[0021] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the drawings needed to be used in the specific embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0022] The above and other aspects of the utility model will now be described by way of example only, with reference to the accompanying drawings in which:

[0023] Figure 1 It is the overall structure of the utility model sectional view;

[0024] Figure 2 It is the utility model sectional Figure 1 A place of the enlarged schematic view;

[0025] Figure 3 It is the utility model Figure 1 B place of the enlarged schematic view;

[0026] Figure 4 It is the utility model Figure 3 Push head of the sectional schematic view;

[0027] Figure 5 It is the utility model Figure 1 C place of the enlarged schematic view;

[0028] Figure 6 It is the utility model Figure 5 D place of the enlarged schematic view.

[0029] Fig. 1, tank body; 11, drive motor; 12, drive shaft; 13, spoiler column; 14, layered filter screen; 2, mixing assembly; 21, material guiding stirring blade; 22, pressing rod; 221, pressing rack; 222, pressing push head; 23, mixing stirring blade; 3, screening assembly; 31, linkage rod; 311, linkage rack; 312, linkage gear; 32, screening plate; 321, screening filter screen; 322, baffle; 33, crushed material tablet press; 331, through hole; 332, limiting sliding buckle; 4, discharge cavity; 5, discharge pipe. DETAILED DESCRIPTION

[0030] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings of the specification and specific embodiments.

[0031] As Figures 1-6 shown, the utility model provides an automatic dosing device for producing sewage treatment, installs dosing device on sewage treatment equipment, including tank body 1, tank body 1 top is equipped with drive motor 11, bottom end is connected with discharge pipe 5, including mixing assembly 2 and screening assembly 3, mixing assembly 2 is located in tank body 1 and is connected with the drive shaft 12 on drive motor 11, mixing assembly 2 lower end is connected with screening assembly 3, and tank body 1 bottom is equipped with layered filter screen 14, and layered filter screen 14 lower end is equipped with discharge cavity 4, and discharge cavity 4 exports mixed liquid through discharge pipe 5.

[0032] In this embodiment, drive motor 11 drives mixing assembly 2 in the tank to fully stir the medicament and sewage, and the screening assembly 3 and layered filter screen 14 at the lower end are responsible for intercepting and layering the particles that are not dissolved or not refined, and finally the homogeneous and impurity-free liquid medicine is delivered to the treatment system through the discharge pipe 5, realizing integrated automatic dosing.

[0033] Two protruding spoiler columns 13 are installed on the inner wall of the tank body 1. In this embodiment, the outer side of the mixing assembly 2 is in extrusion contact with the spoiler columns 13, and the spoiler columns 13 form fixed high shear points in the tank. The mixing assembly 2 blades are in periodic extrusion contact with them, which not only enhances the shearing and mixing effect on the liquid, but also converts the rotational torque into a pushing force in the upward and downward directions, causing the screening assembly 3 to move synchronously upward and downward, achieving dynamic screening and automatic slag removal.

[0034] In this embodiment, the mixing assembly 2 includes material guiding stirring blades 21, pressing rods 22 and mixing stirring blades 23. The material guiding stirring blades 21 and the mixing stirring blades 23 are combined above and below to form stirring blades that act on the fluid in the tank body 1. The pressing rods 22 are slidably installed on the stirring blades through springs, and the pressing rods 22 are connected to the screening assembly 3 through a gear and rack transmission structure.

[0035] The material guiding stirring blade 21 and the mixing stirring blade 23 work cooperatively to form multi-stage flow guiding and shearing between the blades, and the spring matched pressure rod 22 can adjust the pressure degree when the stirring load fluctuates, and the force is transmitted to the screening assembly 3 through the gear and rack to realize the linkage driving of stirring and screening.

[0036] The stirring blade is symmetrically arranged on the driving shaft 12, and the material guiding stirring blade 21 and the mixing stirring blade 23 on the two sides of the stirring blade are arranged staggeredly.

[0037] In the embodiment, the coaxial blades staggeredly arranged form a closed loop convection channel, and the concentrated upward and downward flow guiding effect can form a spiral rolling flow field to make the liquid medicine rapidly and uniformly circulate in the tank 1, avoid dead zones and precipitation, and improve the overall mixing efficiency.

[0038] As shown in Figure 3 , the pressure rod 22 includes a pressure rack 221 at the inner end and a pressure push head 222 at the outer end, and the pressure racks 221 on the two sides are staggeredly arranged. In the embodiment, when the staggered pressure racks 221 are engaged with the corresponding linkage racks 311, stable transmission can be maintained, and mutual interference of the racks on the two sides can be avoided.

[0039] As shown in Figure 4 , the pressure push head 222 is in the shape of a crescent. In the embodiment, when the pressure push head 222 rotates with the driving shaft 12, the pressure push head 222 will be in extrusion contact with the turbulence column 13, and the contact surface of the crescent-shaped pressure push head 222 can uniformly distribute the pressure when stressed, reducing local wear and tear. Meanwhile, the outer side of the crescent-shaped arc smoothly and smoothly contacts the turbulence column 13, improving the stability of the device operation.

[0040] As shown in Figure 2 and Figure 5 , the screening assembly 3 includes a linkage rod 31 and a screening plate 32. The linkage rod 31 is slidably installed on the driving shaft 12, and the linkage rack 311 is arranged on the linkage rod 31. The linkage rack 311 is in transmission connection with the pressure rack 221 through the linkage gear 312. The screening plate 32 is installed at the lower end of the linkage rod 31 and in contact with the layered filter screen 14.

[0041] In the embodiment, the installation of the spring allows the linkage rod 31 to buffer and rebound when impacted, and the linkage rack 311 is in meshing transmission with the pressure rack 221 to efficiently convert the rotary motion into the reciprocating motion of the screening plate 32, so that the screening plate 32 continuously engages with the layered filter screen 14 to realize online oscillation cleaning and layered filtration.

[0042] Further, as shown in Figure 5As shown, the screening plate 32 is provided with a screening filter screen 321 and a baffle 322, the baffle 322 is installed outside the screening filter screen 321, and the bottom end of the screening filter screen 321 is provided with a crushed material pressing piece 33.

[0043] In the embodiment, the filter screen baffle 322 cooperates with the outer baffle 322 to form secondary interception, ensuring that large particles are first blocked, and the bottom end of the crushed material pressing piece 33 is used to crush and crush smaller particles, which not only improves the screening accuracy, but also reduces the frequency of filter screen blockage and enhances the automatic unblocking performance.

[0044] As shown, Figure 6 The crushed material pressing piece 33 is provided with a through hole 331, and the two sides of the crushed material pressing piece 33 are slidably installed in the limiting slide buckle 332.

[0045] In the embodiment, the through hole 331 ensures that the fine particles after crushing can pass through freely and will not accumulate inside the pressing piece; the limiting slide buckle 332 ensures that the pressing piece can only slide within the set stroke, avoiding excessive compression or deviation, thereby ensuring that the screening assembly 3 operates reliably and has a longer service life.

[0046] In the working process of the utility model, the operator adds water and powder through the two feeding pipes on the top of the tank body 1, the driving motor 11 drives the stirring blade on it to rotate through the driving shaft 12, the stirring blade is composed of the material guiding stirring blade 21 and the mixing stirring blade 23, wherein the two sides of the staggered material guiding stirring blade 21 will guide the liquid medicine in the upper and lower parts of the tank body 1 to the middle part, and the two sides of the staggered mixing stirring blade 23 will stir the liquid medicine; when the stirring blade rotates to the position of the turbulence column 13, the protruding pressure rod 22 front end pressure push head 222 will be extruded by the turbulence column 13 and retract, and then drive the pressure rack 221 at the other end of the pressure push head 222 to translate and slide, the pressure rack 221 drives the linkage rack 311 to move upward through the linkage gear 312, and further makes the screening plate 32 at the bottom end of the linkage rod 31 move upward; once the pressure rod 22 rotates through the turbulence column 13, the pressure rod 22 loses the extrusion of the turbulence column 13 and resets under the action of the spring thereon, and then makes the pressure rack 221 reset, and the pressure rack 221 drives the linkage rod 31 to reset through the linkage gear 312, and since the spring on the linkage rod 31 will also rebound to assist the reset, and then the screening plate 32 will fall from the high position and quickly impact the layered filter screen 14 at the bottom of the tank body 1, so as to realize the shaking off and filtering of the powder particles on the screening filter screen 321.

[0047] It is worth noting that the crushed material pressing piece 33 at the bottom of the screening plate 32 will be extruded and deformed with the layered filter screen 14, the two sides of the crushed material pressing piece 33 will slide in the limiting slide buckle 332, and the powder particles in the crushed material pressing piece 33 will be further crushed, and the powder particles on the layered filter screen 14 will also be further crushed, and the flexible impact of the crushed material pressing piece 33 can avoid damage to the mechanism, improve the reliability and stability of the mechanism.

[0048] The description herein is presented to enable any person skilled in the art to practice or use the present disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not to be limited to the examples and designs described herein but is to be accorded the broadest scope possible with the principles and novel features disclosed herein.

[0049] Although one or more example embodiments of the present disclosure have been described herein with reference to the accompanying drawings, it will be apparent to those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the present disclosure as defined by the appended claims.

[0050] Although the present disclosure has been described in some detail by way of illustration and example with reference to the accompanying drawings, it is not limited to the examples and designs described herein, but rather can be modified or improved within the scope of the present disclosure. Accordingly, various modifications or improvements can be made to the present disclosure without departing from the spirit of the present disclosure, and such modifications or improvements are included in the scope of the present disclosure.

Claims

1. A kind of production sewage treatment with automated dosing device, install sewage treatment equipment, including tank body (1), the top of the tank body (1) is equipped with driving motor (11), bottom end is connected with discharge pipe (5);It is characterized in that, The utility model provides a kind of mixing and screening device, including mixing assembly (2) and screening assembly (3), the mixing assembly (2) is located in the tank body (1) and is connected with the driving shaft (12) on the driving motor (11), mixing assembly (2) lower end is connected with screening assembly (3), the tank body (1) bottom is equipped with layered filter screen (14), the layered filter screen (14) lower end is equipped with discharge cavity (4), the discharge cavity (4) is discharged mixed liquid through the discharge pipe (5); At least two protruding spoiler columns (13) are mounted on the inner wall of the tank body (1); the outer side of the mixing assembly (2) is in extrusion contact with the spoiler columns (13), thereby driving the vertical linear motion of the screening assembly (3).

2. The automatic dosing device for sewage treatment according to claim 1, characterized in that: The mixing assembly (2) includes material guiding stirring blades (21), pressing rods (22) and mixing stirring blades (23). The material guiding stirring blades (21) and the mixing stirring blades (23) are combined in an up-down manner to form stirring blades for fluid in the tank body (1). The pressing rods (22) are slidably mounted on the stirring blades by springs. The pressing rods (22) are connected to the screening assembly (3) through a gear-and-rack transmission structure.

3. The automatic dosing device for sewage treatment according to claim 2, characterized in that: The stirring blades are two and symmetrically arranged on the driving shaft (12). The material guiding stirring blades (21) and the mixing stirring blades (23) on the two stirring blades are arranged in an up-down staggered manner. The lower material guiding stirring blades (21) are used for upward flow guiding, and the upper material guiding stirring blades (21) are used for downward flow guiding.

4. The automatic dosing device for sewage treatment according to claim 2, characterized in that: The pressing rods (22) include pressing racks (221) at inner ends and pressing push heads (222) at outer ends. The pressing racks (221) on the two sides are arranged in an interlaced manner. The pressing push heads (222) are crescent-shaped.

5. The automatic dosing device for sewage treatment according to claim 4, characterized in that: The screening assembly (3) includes a linkage rod (31) and a screening plate (32). The linkage rod (31) is slidably mounted on the driving shaft (12) by a spring. A linkage rack (311) is arranged on the linkage rod (31). The linkage rack (311) is in transmission connection with the pressing rack (221) through a linkage gear (312). The screening plate (32) is mounted at the lower end of the linkage rod (31) and in contact with the layered filter screen (14).

6. The automatic dosing device for sewage treatment according to claim 5, characterized in that: A screening screen (321) and a baffle (322) are arranged on the screening plate (32). The baffle (322) is mounted on the outer side of the screening screen (321). A crushed material pressing piece (33) is mounted at the bottom end of the screening screen (321).

7. The automatic dosing device for sewage treatment according to claim 6, characterized in that: A through hole (331) is formed in the crushed material pressing piece (33). Limiting slide buckles (332) are slidably mounted on the two sides of the crushed material pressing piece (33).

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