Coagulant adding device

Abstract

The utility model discloses a coagulant feeding device, which belongs to the technical field of tap water production and comprises a mounting plate for fixing, an arc-shaped frame is welded on the side surface of the mounting plate, a motor for driving is mounted at the top of the arc-shaped frame, and an output shaft of the motor is connected with a driving fluted disc through a coupler. A driven fluted disc is connected to the periphery of the driving fluted disc in a meshed mode, a coagulant conveying pipe used for flowing of a coagulant is installed in the driven fluted disc, a protective cover used for protecting the driven fluted disc is installed on the periphery of the coagulant conveying pipe, and a connecting disc is installed on the periphery of the coagulant conveying pipe; according to the coagulant feeding device, the rotating capacity of the device can be improved, a coagulant can be uniformly diffused to the whole water flow section, the subsequent coagulation reaction is more sufficient, the size of formed flocs is relatively consistent, the precipitation and filtering efficiency is improved, and the purification quality of tap water is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of tap water production technology, and in particular to a coagulant dosing device. Background Technology

[0002] In the process of tap water production, the addition of coagulants is a crucial step. By adding coagulants, suspended particles and colloidal substances in the water can aggregate to form larger flocs, facilitating subsequent sedimentation and filtration. Traditional coagulant dosing devices can meet the basic requirements for coagulant addition, but their weak rotational capacity prevents the coagulant from being evenly distributed across the entire water flow cross-section. This results in incomplete coagulation reactions, flocs of varying sizes, reduced sedimentation and filtration efficiency, and ultimately, compromised tap water purification quality.

[0003] A search revealed Chinese patent document (authorization announcement number CN215439801U), which discloses a sedimentation device for tap water production in the field of tap water production technology. The device includes a dosing device and a sedimentation device. The dosing device is positioned above the sedimentation device. The sedimentation device includes a support frame, a sedimentation tank, and a drain device. The support frame is positioned at the bottom of the sedimentation tank, which has a hollow structure. The drain device is positioned below the sedimentation tank. The dosing device includes a dosing tank, a dosing port, a stirring device, and a spraying device. The dosing port and the stirring device are both located at the top of the dosing tank, and the spraying device is located at the bottom of the dosing tank. This invention uses a dosing device to add flocculants or coagulants to a sedimentation tank to promote the coagulation of all fine suspended solids and colloidal particles in the water. The coagulated particles can quickly form flocculation and then settle rapidly. The sediment is discharged from the drain outlet through a sewage discharge device to avoid the accumulation of sediment and thus affecting water quality. This device can meet basic dosing requirements, but its rotation capacity is weak, which prevents the coagulant from being evenly diffused across the entire water flow cross-section. The subsequent coagulation reaction is insufficient, and the resulting flocs are of varying sizes, reducing sedimentation and filtration efficiency and affecting the purification quality of tap water. Utility Model Content

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

[0005] To achieve the above objectives, the present invention provides the following technical solution: a coagulant dosing device, comprising a mounting plate for fixing, an arc-shaped frame welded to the side of the mounting plate, a motor for driving mounted on the top of the arc-shaped frame, and the output shaft of the motor connected to a drive gear disc via a coupling;

[0006] The outer periphery of the active toothed disc is meshed with a driven toothed disc. The interior of the driven toothed disc is equipped with a coagulant delivery pipe for coagulant flow. The outer periphery of the coagulant delivery pipe is equipped with a protective cover for protecting the driven toothed disc. The outer periphery of the coagulant delivery pipe is equipped with a connecting disc, and the coagulant delivery pipe is rotatably installed inside the connecting disc.

[0007] Preferably, the bottom of the coagulant delivery pipe is connected to a guide disc for coagulant spraying and addition, and the outer periphery of the guide disc is provided with a locking groove.

[0008] Preferably, the bottom of the guide plate is provided with a plurality of dosing baffles for limiting the direction of coagulant dosing, and a plurality of locking rods for fixing the dosing baffles are installed on the outer periphery of the dosing baffles.

[0009] Preferably, a fixing ring is rotatably installed on the outer periphery of the coagulant delivery pipe, and an external connecting pipe for connecting to an external coagulant pipe is installed on the top of the fixing ring.

[0010] Preferably, the top of the dosing baffle is equipped with a conical guide block for diverting and dispensing coagulant, and the surface of the dosing baffle is provided with multiple flow channels for coagulant flow.

[0011] Preferably, a rotating shaft is rotatably mounted on the surface of each of the plurality of guide channels, and a plurality of turbulence blades for turbulence of coagulant are mounted on the outer periphery of the rotating shaft.

[0012] Preferably, the surface of the mounting plate is provided with a plurality of holes for fixing the mounting plate.

[0013] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0014] This coagulant dosing device, thanks to the structure of the guide disc and the dosing baffle, uses a motor to drive the active and driven gear discs to rotate. The driven gear disc drives the protective cover and the coagulant delivery pipe to rotate, and the coagulant delivery pipe drives the guide disc, locking rod, and dosing baffle to rotate. Compared to traditional coagulant dosing devices with weaker rotation capabilities, this structure can improve the device's rotation capability, allowing the coagulant to be evenly diffused across the entire water flow cross-section. This results in a more complete subsequent coagulation reaction, forming flocs of more uniform size, improving sedimentation and filtration efficiency, and ensuring the purification quality of tap water.

[0015] Thanks to the structure of the guide channel and the turbulence blades, the coagulant dosing device allows the sprayed coagulant to contact the conical guide block, and then spray outwards along the surface of the conical guide block. The coagulant is also sprayed out along the guide channel and then contacts the turbulence blades. The turbulence blades are struck and rotated by the coagulant, forming vortices in multiple directions under the action of the turbulence blades, which further enhances the mixing degree between the coagulant and the tap water. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0020] Figure 4 This utility model Figure 1 Enlarged view of point A in the middle;

[0021] Figure 5 This utility model Figure 3 Enlarged view of point B in the middle.

[0022] Explanation of reference numerals in the attached figures:

[0023] In the diagram: 1. Mounting plate; 101. Arc frame; 102. Motor; 103. Driven gear plate; 104. Driven gear plate; 105. Protective cover; 106. Coagulant delivery pipe; 107. Fixing ring; 108. External pipe; 2. Connecting plate; 201. Guide plate; 202. Dosing baffle plate; 203. Locking rod; 204. Conical guide block; 205. Locking groove; 3. Flow guide groove; 301. Rotating shaft; 302. Turbulence blade. Detailed Implementation

[0024] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0025] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0026] like Figures 1 to 5The coagulant dosing device shown includes a mounting plate 1 for fixing, an arc-shaped frame 101 welded to the side of the mounting plate 1, a plurality of holes for fixing the mounting plate 1 on the surface of the mounting plate 1, and a motor 102 for driving is mounted on the top of the arc-shaped frame 101. The output shaft of the motor 102 is connected to a drive gear 103 through a coupling.

[0027] The outer periphery of the driving gear disc 103 is meshed with the driven gear disc 104. The interior of the driven gear disc 104 is equipped with a coagulant delivery pipe 106 for coagulant flow. The outer periphery of the coagulant delivery pipe 106 is equipped with a protective cover 105 to protect the driven gear disc 104. A connecting plate 2 is installed on the outer periphery of the coagulant delivery pipe 106. The coagulant delivery pipe 106 is rotatably installed inside the connecting plate 2. When the motor 102 is turned on, the motor 102 drives the driving gear disc 103 and the driven gear disc 104 to rotate. The driven gear disc 104 drives the protective cover 105 and the coagulant delivery pipe 106 to rotate. The coagulant delivery pipe 106 drives the guide plate 201, the locking rod 203 and the dosing baffle 202 to rotate, increasing the efficiency of coagulant dosing to all directions.

[0028] The bottom of the coagulant delivery pipe 106 is connected to a guide plate 201 for coagulant spraying and addition. The outer periphery of the guide plate 201 is provided with a locking groove 205. The bottom of the guide plate 201 is provided with a plurality of addition baffles 202 for limiting the direction of coagulant addition. The outer periphery of the addition baffles 202 is equipped with a plurality of locking rods 203 for fixing the addition baffles 202. The locking rods 203 can be installed and removed from the addition baffles 202 by separating and engaging with the guide plate 201.

[0029] A retaining ring 107 is rotatably mounted on the outer periphery of the coagulant delivery pipe 106. An external connecting pipe 108 for connecting to an external coagulant pipe is mounted on the top of the retaining ring 107. Sealant is provided at the contact part between the retaining ring 107 and the external connecting pipe 108 to prevent coagulant from overflowing. The external connecting pipe 108 is connected to the external coagulant pipe. The coagulant is sprayed out from the guide plate 201 through the external connecting pipe 108 and the coagulant delivery pipe 106. The sprayed coagulant contacts the conical guide block 204 and sprays outward along the surface of the conical guide block 204.

[0030] The top of the dosing baffle 202 is equipped with a conical guide block 204 for distributing the coagulant. When the coagulant is added, it impacts the conical guide block 204, changing the flow direction of the coagulant solution and dispersing it into multiple fine streams. This dispersion increases the contact area between the coagulant and tap water, accelerating their mixing speed. For example, the coagulant solution that was originally added in a concentrated manner diffuses outwards after impact, mixing more quickly with the surrounding water flow. This avoids situations where the local concentration is too high or too low, resulting in a more uniform distribution of the coagulant in the water, creating favorable conditions for subsequent coagulation reactions and improving the flocculation effect. The surface of the dosing baffle 202 is provided with multiple guide channels 3 for coagulant flow. A rotating shaft 301 is rotatably installed on the surface of each guide channel 3. Multiple turbulence blades 302 for coagulant turbulence are installed on the outer periphery of the rotating shaft 301. The coagulant is sprayed out along the guide channel 3. The coagulant comes into contact with the turbulence blades 302. The turbulence blades 302 are hit and rotated by the coagulant. Under the action of the turbulence blades 302, vortices in multiple directions are formed, which further enhances the mixing degree of coagulant and tap water.

[0031] Working principle

[0032] In use, the coagulant dosing device is first connected to the external coagulant pipe via the external pipe 108. The coagulant is then sprayed from the guide plate 201 through the external pipe 108 and the coagulant delivery pipe 106. The sprayed coagulant contacts the conical guide block 204 and is sprayed outwards along the surface of the conical guide block 204. The coagulant is also sprayed along the guide channel 3 and contacts the turbulence blades 302, which are then struck and rotated by the coagulant, creating a turbulent flow. The impeller 302 generates vortices in multiple directions, further enhancing the mixing of coagulant and tap water. The motor 102 is turned on, driving the active gear disc 103 and the driven gear disc 104 to rotate. The driven gear disc 104 drives the protective cover 105 and the coagulant delivery pipe 106 to rotate. The coagulant delivery pipe 106 drives the guide disc 201, the locking rod 203 and the dosing baffle 202 to rotate, increasing the efficiency of coagulant dosing in all directions.

[0033] It should be noted that in this article, relational terms such as one and two are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coagulant dosing device comprising a mounting plate (1) for fixation, characterized in that: The side of the mounting plate (1) is welded with an arc-shaped frame (101), the top of the arc-shaped frame (101) is provided with a motor (102) for driving, the output shaft of the motor (102) is connected with a driving gear disc (103) through a shaft coupling, the outer periphery of the driving gear disc (103) is connected with a driven gear disc (104), the inside of the driven gear disc (104) is provided with a coagulant conveying pipe (106) for coagulant flow, the outer periphery of the coagulant conveying pipe (106) is provided with a protective cover (105) for protecting the driven gear disc (104), the outer periphery of the coagulant conveying pipe (106) is provided with a connecting disc (2), and the coagulant conveying pipe (106) is rotatably installed in the inside of the connecting disc (2). The bottom of the coagulant conveying pipe (106) is communicated with a guide disc (201) for coagulant injection and dosing, and the outer periphery of the guide disc (201) is provided with a locking groove (205).

2. The coagulant dosing device according to claim 1, characterized in that: The bottom of the guide disc (201) is provided with a plurality of dosing baffle plates (202) for limiting the dosing direction of the coagulant, and the outer periphery of the dosing baffle plate (202) is provided with a plurality of locking rods (203) for fixing the dosing baffle plate (202).

3. The coagulant dosing device according to claim 2, characterized in that: The outer periphery of the coagulant conveying pipe (106) is rotatably provided with a fixing ring (107), and the top of the fixing ring (107) is provided with an external pipe (108) for connecting with an external coagulant pipe.

4. The coagulant dosing device according to claim 2, characterized in that: The top of the dosing baffle plate (202) is provided with a conical guide block (204) for coagulant shunt dosing, and the surface of the dosing baffle plate (202) is provided with a plurality of guide grooves (3) for coagulant flow.

5. The coagulant dosing device according to claim 3, characterized in that: The surface of the plurality of guide grooves (3) is rotatably provided with a rotating shaft (301), and the outer periphery of the rotating shaft (301) is provided with a plurality of turbulence paddles (302) for coagulant turbulence.

6. The coagulant dosing device according to claim 5, characterized in that: The surface of the mounting plate (1) is provided with a plurality of holes for fixing the mounting plate (1).

7. The coagulant dosing device according to claim 1, characterized in that: ​

Images