Coagulative precipitation tank for treating polluted water

Abstract

The utility model relates to the field of polluted water treatment, in particular to a coagulative precipitation tank for treating polluted water, which comprises a coagulative precipitation tank body, a fixed placing plate is mounted in the middle of the top end of the coagulative precipitation tank body, a driving motor is mounted at the top end of the fixed placing plate, and the output end of the driving motor is vertically and downwards connected with a stirring shaft. The stirring shaft extends into the coagulative precipitation tank body, and a plurality of first stirring mechanisms are equidistantly arranged on the outer wall of the stirring shaft. According to the sewage treatment device disclosed by the utility model, the driving motor drives the stirring shaft to rotate, and in the rotating process, the coagulant is further collided with the pollutants in the sewage through the placement frame body while the coagulant is collided with the pollutants in the sewage through the fixing rod, so that the pollutants in the water are adsorbed, gathered and settled more quickly; the flocculation efficiency of the sewage is improved, and flocculates attached to the inner wall of the coagulation tank are scraped off and cleaned through the scraping plate.

Description

Technical Field

[0001] The utility model relates to the technical field of polluted water treatment, in particular to a coagulation sedimentation tank for treating polluted water. Background Art

[0002] During the sewage treatment process, the sewage will first enter the coagulation tank for coagulation and sedimentation. Chemical agents are usually added to react with the sewage, so that the harmful substances in the sewage can be separated from the sewage through chemical reactions and coagulated into flocs and settled to achieve the effect of solid-liquid separation. In order to increase the coagulation speed of sewage, stirring equipment is usually installed in the coagulation tank to increase the reaction speed of chemicals and sewage.

[0003] At present, most of the stirring equipment used in coagulation sedimentation tanks, when in use, is mostly stirred by a single form of rotation. The mixing between chemical agents and sewage is not efficient enough, resulting in inefficient sewage flocculation efficiency. At the same time, the flocs produced after sewage flocculation will adhere to the inner wall of the coagulation tank, and most of the stirring equipment can only perform a single stirring and mixing, and is unable to clean the flocs attached to the inner wall, resulting in the need for excessive labor to clean the attached flocs later, increasing labor input. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a coagulation sedimentation tank for treating polluted water.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A coagulation sedimentation tank for treating polluted water comprises a coagulation sedimentation tank body, a fixed placement plate is installed in the middle of the top of the coagulation sedimentation tank body, a driving motor is installed on the top of the fixed placement plate, an output end of the driving motor is vertically connected to a stirring shaft downward, and the stirring shaft extends into the interior of the coagulation sedimentation tank body, and a plurality of first stirring mechanisms are arranged at equal distances on the outer wall of the stirring shaft;

[0007] The first stirring mechanism comprises a connecting rod, a plurality of fixed rods are installed at equal distances on one end of the connecting rod, one end of the fixed rod is connected to the stirring shaft, and the other end of the connecting rod is connected to a scraper, and a placement mechanism is provided between two adjacent fixed rods.

[0008] In addition, a preferred structure is that the placement mechanism includes a placement frame, and fixing blocks are installed on the top and bottom of the placement frame, and one end of the fixing blocks is connected to the corresponding fixing rod.

[0009] In addition, a preferred structure is that a groove is opened in the middle of one side of the placing frame, and a limiting plate is installed on one side of the placing frame, a plurality of through holes are opened at equal distances in the limiting plate, and a plurality of through holes are opened at equal distances on one side of the groove in the placing frame.

[0010] In addition, a preferred structure is that the top and bottom of the limit plate are both installed with extended protruding plates, and a plurality of mounting holes are opened in the extended protruding plates at equal distances, and the limit plate is fixed to the placement frame by a plurality of fixing bolts.

[0011] In addition, a preferred structure is that the limiting plate and the top end of the placement frame are symmetrically provided with guide blocks on both sides of the fixed block.

[0012] In addition, a preferred structure is that a sewage outlet is provided at the bottom of one side of the coagulation sedimentation tank body, and the sewage outlet is equipped with a sewage valve, and feed ports are provided on both sides of the driving motor at the top of the fixed placement plate.

[0013] The beneficial effects of the utility model are:

[0014] In the utility model, a stirring shaft is driven to rotate by a driving motor. During the rotation, a fixed rod is used to make a coagulant collide with pollutants in sewage. At the same time, a frame is used to place the coagulant and the pollutants in sewage for further collision, so that the pollutants in the water are adsorbed, gathered and precipitated more quickly, thereby improving the coagulation efficiency of sewage. The scraper is used to scrape off and clean the flocculants attached to the inner wall of the coagulation tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a coagulation sedimentation tank for treating polluted water proposed by the utility model;

[0016] Figure 2 It is a structural schematic diagram of the cross section of the coagulation sedimentation tank;

[0017] Figure 3 Schematic diagram of the structure of the split first stirring mechanism.

[0018] In the figure: 1. coagulation sedimentation tank body; 2. stirring shaft; 21. driving motor; 3. first stirring mechanism; 31. fixing rod; 32. connecting rod; 33. scraper; 34. placing mechanism; 341. fixing block; 342. placing frame; 343. limiting plate; 344. guide block; 4. feed port; 5. fixing bolt. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely 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, rather than all of the embodiments.

[0020] Reference Figure 1-3 A coagulation sedimentation tank for treating polluted water includes a coagulation sedimentation tank body 1, a fixed placement plate is installed in the middle of the top of the coagulation sedimentation tank body 1, a driving motor 21 is installed on the top of the fixed placement plate, the output end of the driving motor 21 is vertically connected to a stirring shaft 2, and the stirring shaft 2 extends into the interior of the coagulation sedimentation tank body 1, and a plurality of first stirring mechanisms 3 are equidistantly arranged on the outer wall of the stirring shaft 2, and one side of the driving motor 21 is fixedly installed on the top of the fixed placement plate through a bracket.

[0021] The first stirring mechanism 3 includes a connecting rod 32, one end of which is equidistantly mounted with a plurality of fixed rods 31, one end of the fixed rod 31 is connected to the stirring shaft 2, and the other end of the connecting rod 32 is connected to a scraper 33, and a placement mechanism 34 is provided between two adjacent fixed rods 31, wherein one end of the scraper 33 is in contact with the inner wall of the coagulation sedimentation tank body 1.

[0022] Furthermore, the placement mechanism 34 includes a placement frame 342 , and fixing blocks 341 are installed on the top and bottom of the placement frame 342 , and one end of the fixing blocks 341 is connected to the corresponding fixing rod 31 .

[0023] In addition, a groove is opened in the middle of one side of the placing frame 342, and a limiting plate 343 is installed on one side of the placing frame 342. A plurality of through holes are opened at equal distances in the limiting plate 343, and a plurality of through holes are opened at equal distances in one side of the groove in the placing frame 342. Through the through holes and the through holes, the placing frame 342 is placed to facilitate further collision of the coagulant and the pollutants in the sewage during the rotation of the moving stirring shaft 2, so that the pollutants in the water are adsorbed, gathered and settled more quickly, thereby improving the efficiency of sewage flocculation, and the flocculants attached to the inner wall of the coagulation tank are scraped off and cleaned by the scraper 33.

[0024] At the same time, the top and bottom of the limiting plate 343 are both installed with extended protruding plates, and a plurality of mounting holes are opened in the extended protruding plates at equal distances, and the limiting plate 343 and the placement frame 342 are connected and fixed by a plurality of fixing bolts 5.

[0025] At the same time, guide blocks 344 are symmetrically installed on both sides of the fixing block 341 at the top of the limiting plate 343 and the placing frame 342. The guide blocks 344 prevent flocculants from accumulating on the top of the limiting plate 343 and the placing frame 342.

[0026] Furthermore, a sewage outlet is provided at the bottom of one side of the coagulation sedimentation tank body 1, and the sewage outlet is equipped with a sewage valve, and feed ports 4 are provided on both sides of the top of the fixed placement plate located on the driving motor 21. The feed port 4 is convenient for users to input flocculants into the coagulation sedimentation tank body 1, and the lower part of the coagulation sedimentation tank body 1 is conical, which is conducive to the deposition of silt, impurities and flocculants, and the deposited silt, impurities and flocculants are discharged through the sewage outlet.

[0027] In this embodiment, the coagulant can be placed by the placement frame 342 and the limiting plate 343. After a period of use, it is convenient to take it out to clean the flocculants in the placement frame 342 and replace it with new flocculants.

[0028] Next, the stirring shaft 2 is driven to rotate by the driving motor 21. During the rotation, the coagulant is made to collide with the pollutants in the sewage through the fixed rod 31, and the coagulant is placed through the placement frame 342 to further collide with the pollutants in the sewage, so that the pollutants in the water are adsorbed, gathered and precipitated more quickly, thereby improving the coagulation efficiency of the sewage, and the flocculants attached to the inner wall of the coagulation tank are scraped off and cleaned by the scraper 33.

[0029] In the utility model, the stirring shaft 2 is driven to rotate by the driving motor 21. During the rotation, the coagulant is made to collide with the pollutants in the sewage through the fixed rod 31, and the coagulant is placed by the placing frame 342 to further collide with the pollutants in the sewage, so that the pollutants in the water are adsorbed, gathered and settled more quickly, thereby improving the efficiency of sewage flocculation, and the scraper 33 is used to scrape off and clean the flocculants attached to the inner wall of the coagulation tank.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A coagulation sedimentation tank for treating polluted water, comprising a coagulation sedimentation tank body (1), characterized in that: A fixed placement plate is installed in the middle of the top of the coagulation sedimentation tank body (1), a driving motor (21) is installed on the top of the fixed placement plate, the output end of the driving motor (21) is vertically connected to a stirring shaft (2), and the stirring shaft (2) extends into the interior of the coagulation sedimentation tank body (1), and a plurality of first stirring mechanisms (3) are arranged at equal distances on the outer wall of the stirring shaft (2); The first stirring mechanism (3) comprises a connecting rod (32), a plurality of fixed rods (31) are equidistantly mounted on one end of the connecting rod (32), one end of the fixed rod (31) is connected to the stirring shaft (2), and the other end of the connecting rod (32) is connected to a scraper (33), and a placement mechanism (34) is provided between two adjacent fixed rods (31).

2. A coagulation sedimentation tank for treating polluted water according to claim 1, characterized in that: The placement mechanism (34) comprises a placement frame (342), and a fixing block (341) is installed on the top and the bottom of the placement frame (342), and one end of the fixing block (341) is connected to the corresponding fixing rod (31).

3. A coagulation sedimentation tank for treating polluted water according to claim 2, characterized in that: A groove is provided in the middle of one side of the placement frame (342), and a limiting plate (343) is installed on one side of the placement frame (342), a plurality of through holes are provided in the limiting plate (343) at equal distances, and a plurality of through holes are provided in the placement frame (342) at one side of the groove at equal distances.

4. A coagulation sedimentation tank for treating polluted water according to claim 3, characterized in that: The top and bottom of the limiting plate (343) are both provided with extended protruding plates, and a plurality of mounting holes are provided in the extended protruding plates at equal distances, and the limiting plate (343) and the placement frame (342) are connected and fixed by a plurality of fixing bolts (5).

5. A coagulation sedimentation tank for treating polluted water according to claim 4, characterized in that: The limiting plate (343) and the top of the placing frame (342) are symmetrically provided with guide blocks (344) on both sides of the fixing block (341).

6. A coagulation sedimentation tank for treating polluted water according to claim 1, characterized in that: A sewage outlet is provided at the bottom of one side of the coagulation sedimentation tank body (1), and the sewage outlet is equipped with a sewage valve. A feed inlet (4) is provided on both sides of the driving motor (21) at the top of the fixed placement plate.

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